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HomeMy WebLinkAbout3455; Coastal Rail Trail Oceanside to Del Mar; Technical Studies for Mitigated Negative Declaration Coastal Rail Trail Project Oceanside to Del Mar; 2000-10-01[} Technical Studies For i Mitigated Negative Declaration n Coastal Rail Trail Project 1 Oceanside to Del Mar Prepared for: Lead Agency City of Carlsbad 1635 Faraday, Carlsbad, CA Tel. (760) 602-4608 Responsible Agencies the Cities of Oceanside, Encinitas, So/ana Beach and Del Mar Prepared with assistance by: CLM, Inc. P. O. Box 2286 Vista, CA 92085-2286 Tel. (760) 941-9696 October 2000 1 Iu Technical Study For Mitigated Negative Declaration Coastal Rail Trail Project Oceanside to Del Mar "J "An Archaeological Assessment of the Proposed 42+ mile Coastal • L Rail Trail project: Oceanside to San Diego, San Diego County California" by Robert S. White and Laura S. White i Thomas Leslie Associates, Inc May 26, 1999. And 'Historic Property Survey Report for the proposed Oceanside to San Diego -Rail to Trail - TEA Project1 Augusts, 1999 ' ' Prepared for: ', j Lead Agency (> City of Carlsbad , } 1635 Faraday, Carlsbad, CA ![' Tel. (760) 602-4608 Responsible Agencies \ \ the Cities of Oceanside, Encinitas, So/ana Beach and Del Mar Prepared with assistance by: CLM, Inc. P. O.Box2286 Vista, CA 92085-2286 Tel. (760) 941-9696 October 2000 n 'WWNtti^fuMkUv Thomas Leslie & RssodaUs Biological & Cultural Investigations & Monitoring AN ARCHAEOLOGICAL ASSESSMENT OF THE PROPOSED 42+MILE COASTAL RAIL TRAIL PROJECT, OCEANSIDE TO SAN DIEGO, SAN DIEGO COUNTY, CALIFORNIA Prepared for: Transtech Engineering Inc. 424 Summit Street, Suite 120 Oceanside, CA 92054 Contact Person: Ms. Peggy Gentry, AICP Project Manager Prepared by: Thomas Leslie & Associates 32395 Clinton Keith Road, Suite B7 Wildomar,CA 92595 (909) 698-0195 Contact Person: Thomas A. Leslie, Ph.D., CA EPA REA Principal L - r July 22, 1998 1 1 32395 Clinton Keith Rd. Suite B7 Wildomar, CA 92595 Office (909) 698-0195 Fax (909) 698-2233u i i Thomas Leslie & Associates PI Biological & Cultural Investigations & Monitoring 1 TABLE OF CONTENTS Page Management Summary . . . . . . . v f 1 \ 1 I. INTRODUCTION 1 f| II. SETTING .... 1 1 I III. SAN DIEGO COUNTY PREHISTORIC 3 | i CULTURE SEQUENCE ! 1 IV. RECORD SEARCHES 6f f ,1 V. FIELD SURVEY . 11 i J VI. CONCLUSIONS AND RECOMMENDATIONS ... 25 REFERENCES CITED 32 -i- 32395 Clinton Keith Rd. Suite B7 Wildomar, CA 92595 Office (909) 698-0195 Fax (909) 698-2233 LIST OF FIGURES Page Figure 1. Regional location of proposed Coastal .... 2 Rail Trail as indicated on portions of the USGS Santa Ana and San Diego 1:250,000 scale Topographic Map Sheets. Figure 2. Northern half of project index map showing ... 4 areas to be surveyed as well as general locations of previously recorded archaeological sites. Figures. Southern half of project index map showing . . . 5 areas to be surveyed as well as general locations of previously recorded archaeological sites. Figure 4. Archaeological site location and sections . . . . 12 of route that were surveyed in the City of Oceanside as shown on portions of the Oceanside and San LuisRey USGS 7.5' Topographic Quadrangles. Figures. Archaeological site location and sections of . . . 14 route that were surveyed in the City of Carlsbad as shown on a portion of the San LuisRey USGS 7.5' Topographic Quadrangle. Figure 6. Section of route that was surveyed in the City . . . 15 of Carlsbad as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle. Figure?. Northern section of route that was surveyed in . . . 16 the City of Encinitas as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle. Figures. Southern section of route that was surveyed in . . . 17 the City of Encinitas as shown on a portion of the y Encinitas USGS 7.5' Topographic Quadrangle. Figure 9. Sections of route that were surveyed in the . . . 19 City of Solana Beach as shown on portions of the Encinitas and Del Mar USGS 7.5' Topographic Quadrangles. -11- LIST OF PLATES Page Plate I. Top: Looking northwest toward San Luis .... 28 Key River (beginning of trail) along the Oceanside section of trail. Bottom: Looking northwest along Carlsbad section of trail from vicinity of SDG&E power plant facility. Plate BE. Top: Looking southeast along route in . . . 29 vicinity of San Elijo State Park, City of Encinitas. Bottom: Looking northwest along route from vicinity of 8th Street cul-de-sac, City of Del Mar. Plate HI. Top: Looking east/southeast along route . . . . 30 from vicinity of Carmel Mountain Road, City of San Diego. Bottom: Looking southeast along route from vicinity of Sorrento Valley Boulevard, City of San Diego. Plate IV. Top: Looking northeast along route adjacent . . . 31 to Soledad Canyon, City of San Diego. Bottom: Looking south along route at Miramar Road Overpass, City of San Diego." II MANAGEMENT SUMMARY At the request of Transtech Engineering Inc., Thomas Leslie & Associates has undertaken an archaeological assessment of the proposed 42-mile Coastal Rail Trail Project. Presently, it is desired to develop a formal coastal trail for bicyclists, joggers and skaters adjacent to the old AT & SF right-of-way (now the San Diego Northern Railway) between the City of Oceanside and the Santa Fe Depot in the City of San Diego, San Diego County. The purpose of this project was to identify all potentially significant locations of archaeological interest that may be adversely impacted by the Coastal Rail Trail undertaking. The results of the record searches conducted at the South Coastal Information Center at San Diego State and the San Diego Museum of Man indicated that approximately half of the 42-mile route had been previously surveyed for cultural resources. These previous assessments resulted in the discovery of four (4) archaeological sites that lie within the project alignment. Of the four sites, two have been determined to be insignificant, one has been destroyed by construction and the fourth is believed to have been destroyed during highway/railway construction. Recommendations call for construction monitoring by a qualified archaeologist during earthmoving operations connected with the proposed project at two of the four sites (SDI-6751A-C [Carlsbad] and the SDI-4513/4609/5443 complex [San Diego]). No further work in conjunction with cultural resources is recommended at the remaining two (SDI- 13212A & B [Oceanside] and SDI-12453H [San Diego]). The field reconnaissance of the previously unsurveyed portions of the route did not result in the discovery of any new prehistoric or historic archaeological sites. However, the survey did confirm the presence of an archaeologically sensitive area along Carmel Valley Road in the City of San Diego between Via Grimaldi on the north and Sorrento Valley Road on the south (adjacent to the Los Penasquitos Marsh Nature Preserve). Two prehistoric sites (W-20 & 21) have been recorded in this area on the opposite side of Carmel Valley Road. Although -v- 0 construction of Carmel Valley Road has seriously impacted the immediate area, field observations and the results of a recent test excavation program suggest that portions of one or both sites may extend into the proposed trail route. Consequently, construction monitoring by a qualified archaeologist during any earthmoving activities connected with the project is recommended. u i t -vi- U . <. 6 . S rj ugi« OCEANSIDE iJ'XVTsreSK'- ^\eSflO>ML^£<V: £''&•-<&!> saffi; ^^^/^&^tS^m^W^: m^«-' f^M1^ 5^^fl^4%^P^s£fc!MIPEk:fe;,^^^ ^^t^LJ-AM-^M^^,^^ : /-/vr .\ i !y^^'f-^<f ' vr rWr^?^I-xK Figure 1. Regional location of proposed Coastal Rail Trail as indicated on portions of the USGS Santa Ana and Son D/ego 1:250,000 scale Topographic Map Sheets. [] Fe Depot in the City of San Diego (figs. 2 & 3). As previously mentioned, nearly all of the i I route follows the San Diego Northern Railway right-of-way (old AT & SF tracks). Much of r i| the railroad route lies along the coastal strand within close proximity to the ocean. Diversion from the track alignment is done at most rail stations and in areas where it is not physicallyn1 practical to sister the trail adjacent to the tracks. The trail itself will comprise either an 8 or 12-foot wide asphalt path with adjoining 2-3 i ', i foot wide shoulders of compacted material (e.g. decomposed granite). Where possible, the trail will be incorporated into existing bike lanes. i ;, ) ffl. SAN DIEGO COUNTY PREHISTORIC CULTURE SEQUENCE In order to understand the archaeological research of the study area, a concept of the chronology of the three principle cultural stages in San Diego County is first required. These stages are: (1) The San Dieguito which is generally regarded as dating to the era before 6,500 or 7,000 B.C., (2) the long La Jolla period which followed the San Dieguito and lasted until t; circa A.D. 500, and finally, the Late Prehistoric era which followed the La Jolla and continued until the arrival of the Spanish missionaries (Wallace 1955). The San Dieguito culture, which is the most ancient, has been made famous by the Harris Complex deposits on the San Dieguito River. San Dieguito sites are characterized by large chipped stone cores and scrapers manufactured from metavolcanic materials. It is generally believed that the San Dieguito people did not use ground stone milling implements although it is possible that such tools came into use at the end of the San Dieguito period. In contrast, the La Jolla, or "Millingstone," people appear to have been heavily dependent upon ground vegetable foods since stone milling equipment and a dearth of animal bone seem typical of La Jolla archaeological deposits. The Late Prehistoric Period witnessed the introduction of the bow and arrow (circa A.D. 500) and a new emphasis upon hunting in addition to continuation of the La Jollan gathering practices. Most students of southern California prehistory believe that the human population increased dramatically during the late Prehistoric era. One factor which probably contributed to this increase with the integration of "acorn technology" into the economy. The i U SOLAN BEACH hi67 LOCATION OF ARCHAEOLOGICAL SITE UNSURVEYED PORTIONS OF ALIGNMENT I I Figure 2 Northern half of project index map showing areas to be surveyed as well as general locations of previously recorded archaeological sites. Map not to scale. n DEL MAR 1187 NTS 1207 SDI-4609/SOI-5443 PAC FIC OCEAN 1227 CITY OF S4N DIEGO SDM2453 LOCATION OF ARCHAEOLOGICAL SITE I IUNSURVEYED PORTIONS OF ALIGNMENT Figure 3 Southern half of project index map showing areas to be surveyed as well as general locations of previously recorded archaeological sites. Map not to scale. ability to leach the acrid tannic acid from oak acorns, thereby rendering them edible, provided an abundant staple foodstuff capable of supporting an expanding population. In northern San Diego county, the Late Prehistoric population, which consisted of people of Shoshonean (Great Basin) derivation, were known as the "Luiseno" due to the fact that they lived within the sphere of influence of the Mission San Luis Rey. The southern portion of the county was populated by people who were formerly known as the "Diegueno" although they currently prefer the name "Kumeyaay." The Kumeyaay, who spoke a Yuman dialect, may have had southwestern ancestry. IV. RECORD SEARCHES Record searches of the proposed trial route were conducted by the staff of the San Diego Museum of Man and the South Coastal Information Center, San Diego State University. The searches entailed a review of all previously recorded prehistoric and historic archaeological sites located within or immediately adjacent to the proposed alignment. Historic maps on file with SDSU were also reviewed for the locations of potential historic properties as were the listings of the National Register of Historic Places, California Historical Landmarks, and Points of Historic Interest. Additional background information was supplemented by pertinent archaeological survey reports and the cultural resource sections from several Environmental Impact Reports. For purposes of this study, the 1:2000 (metric) Coastal Rail Trail Alignment Concept Plan, dated May 28, 1997 was used in defining the route and determining which sites may be adversely impacted by the project. The results of the'research project are presented in the sections below beginning with Oceanside (north) and terminating in the City of San Diego(south). A. City of Oceanside The City of Oceanside contains approximately 2.9 miles of proposed trail route between the San Luis Rey River on the north and Buena Vista Lagoon on the south. Of this distance, about 8/10 mile has been previously surveyed for cultural resources in conjunction with other, -6- n r 'i Table 1 Summary of Unsurveyed Portions of Trail Route by City City Oceanside Carlsbad Encinitas Solana Beach Del Mar San Diego TOTALS Approximate Total Miles of Route 2.9 . 8.0 6.2 1.7 3.1 20.6 42.5 Miles of Route Previously Surveyed .8 .5 None 1.3 None 12.3 14.9 Miles of Route Yet to be Surveyed 1.2 4.0 4.4 .4 1.7 7.4 19.1 Table 2 Summary of Known Archaeological Sites Within Route by City City Oceanside Carlsbad Encinitas Solana Beach Del Mar San Diego TOTALS Number of Sites 1 1 None None None 2 4 Site Trinomial(s) SDI-13212 A&B SDI-6751 A thru C (1)SDI-4513/4609/ SDI- 5443 complex (2) SDI-12453H Type Prehistoric/Historic Prehistoric Prehistoric Prehistoric/Historic -7- L) non-related projects. Disregarding those portions of the proposed route that will follow existing roads, approximately 1.2-miles of route remains to be surveyed (Table 1). The results of the search indicate that a single archaeological site has been recorded within a previously surveyed portion of the alignment (Table 2). The site, designated SDI- 13212A & B (W-5509) comprises a low density shell scatter and historic trash dump located within the San Diego Northern Railway (SDNR) right-of-way (ROW) near Eucalyptus Street. An archaeological test program was conducted at SDI-13212A & B by Ogden Environmental and Energy Services, Inc. in 1993 (Pigniolo etal. 1993). The results of the test concluded that the site had no integrity as the deposit comprised redeposited fill material. It was determined that the site is not an important pursuant to CEQA criteria nor eligible for listing in the National Register of Historic Places (Ogden Environmental and Energy Services 1996). Consequently, no further work was recommended. B. City of Carlsbad The City of Carlsbad contains approximately 8-miles of proposed trail route between Buena Vista Lagoon on the north and Batiquitos Lagoon on the south. Of this distance, about 1/2-mile has been previously surveyed for cultural resources in conjunction with other, non- related projects (Strudwick and Gallegos 1994). Disregarding those portions of the proposed route that will follow existing roads, approximately 4-miles of route remains to be surveyed for cultural resources (Table 1). The results of the search indicate that a single archaeological site has been recorded within a previously surveyed portion of the Carlsbad alignment (Table 2). The site, designated SDI-6751A through D (W-5508 & W-1874) comprises a series of marine shell concentrations accompanied by one possible stone implement. The site lies within the SDNR right-of-way adjacent to the SDG&E power plant facility north of Cannon Road. Of the four loci, A, B, and C comprise those portions of the site that lie within the proposed trail alignment. SDI-6751 A through D was test excavated by Ogden Environmental and Energy Services, Co., Inc. in 1993 (Pigniolo etal. 1993). The results of the test program indicated that none of the four loci are considered important pursuant to CEQA criteria nor eligible for listing -8- n in the National Register of Historic Places. Consequently, no further mitigation was recommended other than monitoring during any earthmoving activities that may take place at any of the four loci that comprise SDI-6751. C. City of Encinitas The City of Encinitas contains approximately 6.2-miles of proposed trail route between Batiquitos Lagoon (at La Costa Avenue) on the north and San Elijo Lagoon on the south. Of this distance, none has been previously surveyed for cultural resources. Disregarding those portions of the proposed route that will follow existing roads, approximately 4.4-miles requires surveying (Table 1). No archaeological or historical resources have been previously recorded within this portion of the route. D. City of Solana Beach The City of Solana Beach contains approximately 1.7-miles of proposed trail route between San Elijo Lagoon on the north and Via de la Valle on the south. Of this distance, nearly all (1.3-miles) has been previously surveyed for cultural resources in conjunction with other, non-related projects (The Earth Technology Corp. 1993). Disregarding those portions of the proposed route that will follow existing roads, approximately 4/10 mile of route remains to be surveyed (Table 1). No archaeological or historical resources have been previously recorded within this portion of the route. E. City of Del Mar The City of Del Mar contains approximately 3.1 -miles of proposed trail route between Via de la Valle on the north and Carmel Valley Road on the south. Of this distance, none has been previously surveyed for cultural resources. Disregarding those portions of the proposed route that will follow existing roads, approximately 1.7 miles of route requires surveying (Table 1). No archaeological or historical resources have been previously recorded within this portion of the route. -9- u F. City of San Diego The City of San Diego contains approximately 20.6-miles of proposed trail route situated between Carmel Valley Road on the north and the Santa Fe Depot in downtown San Diego on the south. Of this distance, about 12.3-miles have been previously surveyed for cultural resources in conjunction with other, non-related projects (Carrico etal. 1992, Smith 1992). Disregarding those portions of the proposed route that will follow existing roads, approximately 7.4-miles of route remains to be surveyed (Table 1). The results of the search indicated that two areas of archaeological interest have been previously identified within this portion of the proposed trail route (Table 2). The first location comprises a complex of three prehistoric sites (SDI-4513, SDI-4609, and SDI-5443; [Eidsnes etal. 1979, Carrico and Taylor 1980, and Hector 1986]). One of contributing sites, SDI-4513 has been identified as the village of Ystagua (Kyle et al. 1989). Both SDI-4513 and SDI-5443 lie to the north of the SDNR right-of-way and Sorrento Valley Road. SDI-4609 lies to the south of the right-of-way near Rosell Street. Although none of the aforementioned sites are actually recorded within the proposed trail route, nevertheless, the three sites are shown to be interconnected by a nebulous "midden area." Consequently, although the trail route misses the sites, it does bisect the interconnecting midden area. The second site recorded in the City of San Diego segment of the alignment lies several miles to the south near Fiesta Island. SDI-12453H, is described as a disturbed scatter of marine shell, lithics and historic glass. It is located within the SDNR right-of-way approximately 300-feet north of the Tecolote Road overpass on both sides of the railroad tracks west of Moreno Valley Road. At the time of discovery, the integrity of the site was described as poor due to its proximity to the tracks. Furthermore, it was suggested that the light scatter of marine shell may not be archaeological (Carrico et al. 1992). Subsequent investigations concluded that SDI-12453H had been destroyed by construction activity. (Ogden Environmental 1995). Consequently, no further work was recommended. -10- G. Historic Properties The results of the search indicated that no National Register of Historic Places, California Historical Landmarks, or Points of Historic Interest sites are listed within the proposed route of the trail. V. FIELD SURVEY The field work element of the project comprised: 1) a field inspection of the four previously recorded sites within the trail route and, 2) a pedestrian survey of all unsurveyed sections of the route (approximately 19-miles). The field work for the project was carried out by Laurie S. White, M.A. (Principal Investigator), Robert S. White (surveyor) and Susan M. Underbrink (surveyor) on July 8, 10 and 11, 1998. Generally, the pedestrian survey of the unsurveyed portions of the trail alignment was conducted by employing a two-man team walking a narrow transect 10-meters wide along the length of each section. No attempt was made to survey the trail route where it was 'diverted onto city streets. The survey team was assisted by a third crew member who handled the logistics and transportation for each sectioned to be examined. This technique proved to be very efficient since the survey team did not have to back track to pick up the transport vehicle or scout the best ingress and egress points for the next section. The results of the field inspection of each of the four previously recorded sites as well as the field survey are presented in the sections below. For clarity, the route is broken down by city from north to south. A. CityofOceanside The field study for this section of the route began with reconnoitering prehistoric/historic site SD1-13212 A & B (W-5509). The site is mapped within the trail route on the north side of the tracks at Eucalyptus Street (fig. 4). As has been previously discussed, the site has been determined to represent redeposited fill material containing marine shell and historic debris. It does not represent a significant resource and no further work was recommended. The field inspection of the site indicated that the entire area has been seriously -11- \ i—v. ~^tff.••:•: *\C j^HitoHh^B^; I v« ^•^o.^^f^S P \V^tr^ric-x^ ~X A\ jv0"/>sVJ p)K^c^l /k' ^^Pir"^^^&ii'.JL_SURVEYED SECTION OCEANSIDE(BM 47) •\ Jr«ikh&hX\ '-' -^V '•* \ ^'f^, ^C ,\F •' »:£ v r •'• -s^AV-unMbnX/x^-V// iJS^HC^ SURVEYED SECTION Figure 4 Archaeological site location and sections of route that were surveyed in the City of Oceanside as shown on portions of the Oceanside and San Luis Key USGS 7.5' Topographic Quadrangles. Note: this map is confidential and not for public distribution. disturbed in conjunction with the railway and adjoining commercial development. We concur that no further work is warranted at this location. The field survey of this 1.2-mile portion of the route comprised: 1) a 2/10 mile stretch between the San Luis Rey River on the north and Cleveland Street on the south, and 2) a 1 -mile section between Buccaneer Beach Park on the north and Buena Vista Lagoon on the south (fig. 4, PI. I:top). The results of the field survey were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. B. City of Carlsbad The field study for this section of the route began with reconnoitering prehistoric site SD1-6751 A, B and C (W-5508). Loci D of the site lay outside the study area and was not checked. Loci A, B and C are mapped within the trail route on the north side of the tracks adjacent to the San Diego Gas & Electric Power Plant (fig. 5). As has been previously discussed, the subject three loci have been test excavated and evaluated for significance. The results of the evaluation program indicated that none of the three loci represented an important resource. Consequently, no further work was recommended other than grading (construction monitoring). The field inspection of the three loci of SDI-6751 indicated that indeed a marine shell scatter is evident. The scatter also appears to extend into the SDG&E facility as well. We concur that monitoring of construction/grading activities is warranted at this location. The field survey of this 4-mile portion of the route comprised: 1) a 1/2-mile stretch between Buena Vista Lagoon on the north to Grand Avenue on the south, and 2) a 3.5-mile section between Oak Avenue on the north to the Avenida Encinas Overpass at Carlsbad Boulevard on the south (figs. 5 & 6; PI. I.'bottom). The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. Array and N \»SURVEYED SECTION SURVEYED SECTION Figure 5 Archaeological site location and sections of route that were surveyed in the City of Carlsbad as shown on a portion of the San Luis Key USGS 7.5' Topographic Quadrangle. Note: this map is confidential and not for public distribution. SURVEYED SECTION Figure 6 Section of route that was surveyed in the City of Carlsbad as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle. SURVEYED SECTION Seaside Gardens'^ '.County Part fe.i Vii' Figure 7 Northern section of route that was surveyed in the City of Encinitas as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle. n SURVEYED SECTION Cardiff-by-the-Sez^ (Cardiff) Figure 8 Southern section of route that was surveyed in the City of Encinitas as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle. C. City of Encinitas Since no previously recorded sites have been mapped within this portion of the route, the field study for this section comprised only the pedestrian survey of 4.4-miles consisting of 1) a 2.5-mile stretch between La Costa Avenue on the north and Encinitas Boulevard on the south, and 2) a 1.9-mile section between 'E' Street on the north to Chesterfield Drive on the south (figs. 7 & 8; PI. II:top). The field survey of the section between La Costa Ave and Encinitas Blvd. also took into account the proposed alternative route that lay on the north side of the tracks. The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. D. City of Solana Beach Since no previously recorded sites have been mapped within this portion of the route, the field study for this section comprised only the pedestrian survey of 4/10 of a mile consisting of: 1) a 2/10-mile stretch between CardiffState Park at San Elijo Lagoon on the north to Ocean Street on the south, and 2) a second 2/10-mile section between Cofair Avenue on the north and Via de la Valle on the south (fig. 9). The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. E. City of Del Mar Since no previously recorded sites have been mapped within this portion of the route, the field study for this section comprised only the pedestrian survey of a 1.7-mile stretch of the trail alignment. The subject section lies between Ocean Avenue at Coast Boulevard on the north to Torrey Pines State Reserve on the south (fig. 10; PI. ILbottom). The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. F. City of San Diego The field study for this section of the route began with reconnoitering the SDI- 4513/5443/4609/ prehistoric site complex. The complex is located on both sides of the tracks -18- , SURVEYED SECTION SOL«NA BEACH COUNTY PARKJ, Solana Beach ."«,! V: SURVEYED SECTION Figure 9 Sections of route that were surveyed in the City of Solana Beach as shown on portions of the £>ic/jH7a$ and Del Mar USGS 7.5' Topographic Quadrangles. ; SURVEYED SECTION Figure 10 Section of route that was surveyed in the City of Del Mar as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. n approximately 5/8-mile southeast of Sorrento Valley Boulevard in Sorrento Valley (fig. 12). As has been previously discussed, only the interconnecting "midden area" of the complex lies within the proposed route. The field inspection of the proposed trail route confirmed that the area it will traverse is very highly disturbed by both the construction of Sorrento Valley Road and the elevated roadbed for the tracks. Although some marine shell was observed eroding out of the elevated railbed, it is abundantly clear that the berm is composed of imported fill material. Where the fill material originated from is difficult to say. In any event, no lithics or ground stone artifacts were observed with the marine shell. An inspection of the ground adjacent to the track berm where the trail will run indicated that there was no soil that could be clearly characterized as "midden" and what few pieces of marine shell were in the trail route had probably washed out of the adjoining berm. Consequently, we do not believe that any intact portion of the site complex remains within the proposed trail route. The second previously recorded prehistoric site in this portion of the alignment is SDI- 12453H. It lies approximately 300 feet north of the Tecolote Overpass on both side of the tracks near Fiesta Island (fig. 13). As previously discussed, that site was dubiously characterized as a marine shell scatter that contained a historic component. However, it has been noted that the site has been destroyed by construction activity and no further work was recommended. A field inspection of the site area did reveal a few pieces of marine shell and historic bottle glass. However, we are in complete agreement that the site, if it was ever actually a site, has been destroyed through construction of an outflow channel and sewers. The field survey for this portion of the route comprised 7.4-miles between Torrey Pines State Reserve on the north and Miramar Road on the south (figs. 11 & 12; PI. Ill & IV). The results of the field assessment indicated that the segment of route that lies along Carmel Valley Road adjacent to Los Penasquitos Marsh Nature Preserve is in a very sensitive area for prehistoric resources. Recent test excavations on the opposite side of Carmel Valley Road (just east of Via Grimaldi) in the vicinity of prehistoric site W-21 indicated that a buried portion of that site may extend under the street towards the marsh. However, it is to be emphasized that this area has already been impacted by construction of Carmel Valley Road and it is possible -21- SURVEYED SECTION—iii^r*»^- / -.t-'-T."^...— Figure 11 Secdon of route that was surveyed in the City of San Diego as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. SURVEYED SECTION u Figure 12 Archaeological site location and section of route that was surveyed in the City of San Diego as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. Note: this map is confidential and not for public distribution. Figure 13 Archaeological site location in the City of San Diego as shown on a portion of the La Jolla USGS 7.5' Topographic Quadrangle. Note: this map is confidential and not for public distribution. that this portion of the site was destroyed when the road was constructed. The field survey of this area failed to discover any surface evidence of the marine shell scatter. However, beginning at the intersection of Carmel Valley Road and Portifino Drive, moderate quantities of marine shell were observed on the shoulder of the road within the trail route. The shell scatter may have originated from prehistoric site W-20 located upslope on the opposite side of the street when this section of the road bed was cut from the hillside. On the other hand, since no lithic or ground stone artifacts were observed with the marine shell, it is possible that the shell may represent fill material containing natural shell. In any event, it is abundantly evident that this portion of the route between Portifino Drive and Sorrento Valley Road has been seriously disturbed through road construction. With the exception of the aforementioned areas, the balance of the field survey was » entirely negative, no archaeological resources of any kind were encountered. VL CONCLUSIONS AND RECOMMENDATIONS The results of our study indicate that four (4) archaeological sites lie within the proposed route. Of the four, two have been evaluated and found to be insignificant, one has been destroyed, and the fourth, most-likely destroyed. Furthermore, the pedestrian survey has indicated that the section of trail route along Carmel Valley Road adjacent to the Los Penasquitos Marsh Nature Preserve to Sorrento Valley Road passes through an archaeologically sensitive area. The following recommendations, organized by city, should be implemented in order to adequately address the archaeological resources that are located or may be located within the proposed Coastal Rail Trail route. A. City ofOceanside The single prehistoric site identified within the City ofOceanside, SD1-13212 A & B (W-5509), has been evaluated and determined to be insignificant. No further work in conjunction with cultural resources is recommended. -25- 1 1u B. City of Carlsbad The single prehistoric site identified within the City of Carlsbad, SD1-6751 A, B and C (W-5508), has been evaluated and determined to be insignificant. Although no further excavation at the site is warranted, it is recommended that grubbing and/or earthmoving activities in conjunction with construction of the trail be monitored by a qualified archaeologist. C. City of Encinitas No archaeological resources have been identified within the City of Encinitas. Therefore, no further work in conjunction with cultural resources is recommended. D. City of Solona Beach No archaeological resources have been identified within the City of Solona Beach. Therefore, no further work in conjunction with cultural resources is recommended. E. City of Del Mar No archaeological resources have been identified within the City of Del Mar. Therefore, no further work in conjunction with cultural resources is recommended. F. City of San Diego 1. SDI-4513/5443/4609 complex That portion of prehistoric site complex SDI-4513/5443/4609 which is mapped within the trail route has mostly likely been destroyed by highway and railway construction. However, due to the sensitive nature of the area and the proximity of the trail route to the important areas of the complex, it is recommended that any grubbing and/or earthmoving activities in conjunction with construction of the trail be monitored by a qualified archaeologist. If buried archaeological material is encountered during the course of trail construction, the archaeologist should have the authority to temporarily halt the earthmoving activities until such a time that the significance of the find(s) can be determined. -26- n 2. SDI-12453H It has been determined that site SDI-12453H, located approximately 300 feet north of j the Tecolote Overpass near Fiesta Island, has been destroyed. Consequently, no further workl i in conjunction with cultural resources is recommended.n I 3. Carmel Valley Road I i j ! The section of trail route along Carmel Valley Road from Via Aprilia on the north to Sorrento Valley Road on the south transects an archaeologically sensitive area. In all I j likelihood, those sites or portions of sites located along the edge of the marsh in antiquity have , been obliterated or seriously damaged during construction of Carmel Valley Road. However, ( i in the off-chance that a buried deposit may exist, it is recommended that any grubbing and/or r earthmoving activities in conjunction with construction of the trail be monitored by a qualified archaeologist. If buried archaeological material is encountered during the course of trail i construction, the archaeologist should have the authority to temporarily halt the earthmoving activities until such a time that the significance of the find(s) can be determined. LI -27- Plate I Top: Looking northwest toward San Luis Rey River (beginning of trail) along the Oceanside section of trail. Bottom: Looking northwest along Carlsbad section of trail from vicinity of SDG&E power plant facility. Plate II Top: Looking southeast along route in vicinity of San Eiijo State Park, City of Encinitas. Bottom: Looking northwest along route from vicinity of 8* Street cul-de-sac, City of Del Mar. Plate HI Top: Looking east/southeast along route from vicinity of Carmei Mountain Road, City of San Diego. Bottom: Looking southeast along route from vicinity of Sorrento Valley Boulevard, City of San Diego. Top: Looidng northeast along route adjacent to Soledad Canyon, City of San Diego. Bottom: Looking south along route at Miramar Road overpass, City of San Diego. THIS PAGE LEFT BLANK INTENTIONALLY (iu I] REFERENCES CITED CARRICO, RICHAND L. and CLIFFORD V. TAYLOR 1980 Phase I Test Excavations of Portions of SDI-5443 Situated on Hallmark Circuits, Inc. Property. Westec Services, Inc. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. CARRICO, RICHARD, ANDREW PIGNIOLO, and DANIELLE HUEY 1992 Phase I Historic Properties Inventory of the Mid-Coast Corridor Transportation Alternatives. Ogden Environmental and Energy Services Co., Inc. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. EIDSNES, JANET, DOUG FLOWER, DARCY IKE, and LINDA ROTH 1979 Archaeological Investigation of Sorrento Valley Road Pipeline Project-Limited Linear Test, City of San Diego. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. HECTOR, SUSAN and SUE WADE 1986 Excavation of a portion of SDI-4513, The Rimbach Site, City of San Diego^ California. RECON. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. KYLE, CAROLYN, DENNIS GALLEGOS, and RICHARD CARRILO 1989 Village of Ystagua (Rimbach SDI-4513) Testing, Significance, and Management. ERC Environmental and Energy Services, Co., Inc. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. OGDEN ENVIRONMENTAL AND ENERGY SERVICES CO., INC. 1995 Historic and Archaeological Resources. In: Mid-Coast Corridor, San Diego California. San Diego Metropolitan Transit Development Board. 1996 Screencheck Draft Environmental Impact Report for the Oceanside-Escondido Rail Project. SMITH, BRIAN F. 1992 A Cultural Resources Study for the Rose Canyon Trunk Sewer Project. Brian F. Smith and Associates. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. -32- STRUDWICK, IVAN and DENNIS GALLEGOS 1994 Historical/Archaeological Survey and Test Report for the Poinsettia Lane Project, Carlsbad, California. Gallegos and Associates. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. THE EARTH TECHNOLOGY CORPORATION 1993 A Cultural Resources Assessment for the Lomas Santa Fe Grade Separation, Solana Beach, California. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. WALLACE, WILLIAM J. 1955 A Suggested Chronology for Southern California Coastal Archaeology. Southwestern Journal of Anthropology, Vol. 11, No. 3., pp. 214-230. 11 n FROn : THOMAS' LESt* IE & OSSOCIflTES PHCJsE;NO.c^ 909 ^98»0195 -: 'flar, 03 1998 09: 11PM P2 ,, , «.. ....... - ,,., ,I AN ARCHAEOLOGICAL RECORDS SEARCH OF THE PROPOSED 44.5i MILE LONG jj COASTAL 1RAIL TRAIL PROJECT, ; SAN DIEGO COUNTY, CALIFORNIA (I OCEANSIDE TO SAN DIEGO, CALIFORNIA i Prepared for: Transtech Engineers, Inc. 424 Summit Street, Suite 120 Oceansidc, California 92054 Contact Person: Ms. Peggy Gentry, Planning Manager Prepared by: Michael Brandman Associates 17310 Red Hill Avenue, Suite 250 Irvine, California 92614 (714) 250-5555 Contact Persons: Dr. Thomas A. Leslie, CA EPA REA March 2,1998 FROM : THOmS LESLIE & PSSOCIPTES PHONE NO. : 909 698 0195 Mar. 03 1998 09U2P. P3 MANAGEMENT SUMMARY Michael Brandman Associates (MBA) undertook a review of the archaeological data base that addresses all known prehistoric and historic archaeological sites located within ihe proposed 44.5- mile Coastal Rail Trail Project. Presently, it is desired to develop a formal coastal trail for bicyclists and joggers adjacent to the San Diego Northern Railway (formerly the old AT & SF) right-of-way between the City of Oceanside and the Santa Fe Depot in the City of San Diego. The intent of this research project was to identify all known locations of archaeological and historical interest that may be adversely impacted by the Coastal Rail Trail undertaking. It is to be emphasized that the results of this study are entirely dependent upon results of archaeological record searches. MBA staff conducted a preliminary visual inspection of the entire trail alignment to search for any obvious pre-historic or historic cultural resources within the proposed trail alignment as indicated on Transtech Engineers, Inc's. 1:2000 (metric) Coastal Rail Trail Alignment Concept Plan fated May 28, 1997. None were observed. The results of our study indicate that four (4) archaeological sites lie within the project alignment Therefore, it is recommended that a qualified archaeologist visit each of the aforementioned sites to check their status (integrity) and to determine if they will actually be impacted by implementation of the proposed project. Furthermore, it is also recommended mat an archaeological survey of all unsurveyed portions of the trail route be completed. FROM THOmS.LESL.IE & flSSDCIflTES -PHONE NO, vf 909 698,0195 »7«T!»r.*03 1998 09:13PM P4 I. INTRODUCTION I Michael Brandman Associates (MBA) undertook a review of the archaeological data base thati > - , ,, -,-•.•• addresses all known prehistoric and historic archaeological sites located within the proposed 44.5- | ] mile Coastal Rail Trail Project Presently, the Cities of Carlsbad, Del Mar. Encinitas, Oceanside, ' * Solona Beach, and the City of San Diego in conjunction with the North San Diego County Transit f -} Development Board, the San Diego Metropolitan Transit Development Board, and the San Diego' f - ... .',, . * ':••- - '"' ' • • ' •| ; Association of Governments desire to develop a formal coastal trail for bicyclists and joggers adjacent to the San Diego Northern Railway (formerly the old AT & SF) between the City of I j Oceanside and the Santa Fe Depot in the City of San Diego. , It' '- ' ••,'.' , 1 The purpose of MBA's archaeological research was two-fold: (1) review records of all previously ; ; ! recorded archaeological sites located adjacent to the 44.5-mile subject trail and, 2) determine, based '• 1 ' ' solely upon currently available data, which of the previously recorded sites may be adversely '. | impacted by construction activities associated with the trail, it is to be emphasized mat the results ' of this study are entirely dependent upon results of archaeological record searches conducted at the ; : San Diego Museum of Man and the South Coastal Information Center at San Diego State • : University and preliminary inspections of the entire trail alignment. Comprehensive field studies should be undertaken along the previously unsurveyed portions of the trail alignment before any 1 final conclusions can be reached. , , II. LOCATION AND ENVIRONMENT f • • The entire 44.5-mile alignment lies within the County of San Diego. The project area is linear in : nature and is generally oriented in a north to south manner. The project begins in North County just south of the San Luis Key River in the City of Oceanside and extends southward for approximately 44.5-miles before terminating at the Santa Fe Depot in the City of San Diego. The ' alignment traverses portions of six USGS 7.5' topographic quadrangles: Oceanside, San Luis Rey, Encinitas, Del Mar, La Jolla, and Point Loma. * ' • i' i '-i '' ' For the most part, the alignment lies within close proximity to the coast along its entire route. Portions of the trail are proposed adjacent to the ocean, beaches, lagoons, and bays. Where appropriate, portions of the trail were incorporated into existing bike lanes. III. RESEARCH METHODOLOGY Record searches of the proposed trial route were conducted by the staff of the San Diego Museum , of Man and the South Coastal Information Center, San Diego State University (SDSU). The U FROM : THOMftS LESLIE & flSSOCIflTES PHONE NO. : 909 698 0195 Mar. 03 1998 09:13PM P5 searches entailed a review of all previously recorded prehistoric and historic archaeological sites located within or immediately adjacent to the proposed alignment. Historic maps on file with SDSU were also reviewed for the locations of potential historic properties as were the listings of the National Register of Historic Places, Slate Historic Landmarks and Points of Historic Interest. Additional background information was supplemented by pertinent archaeological survey reports arid the cultural resource sections from several Environmental Impact Reports. For purposes of this study, the 1:2000 (metric) Coastal Rail Trail Alignment Concept Plan, dated' iC: ,' -. • •' "' ' ''' ' ' '' May 28, 1997 was used in defining the route and determining which sites may be adversely impacted by the project. A detailed discassion of the results of the research project are presented in the sections below beginning with Oceanside (north) and terminating in the City of San DiegcKsouth). The research results are summarized in Tables 1 and 2. MBA staff, under the direction of Dr. Thomas A. Leslie, CA EPA REA, conducted a preliminary visual inspection of the entire trail alignment to search for any obvious pre-historic or historic cultural resources within the proposed trail alignment as indicated on Transtech Engineers, Inc's. i " • • 1:2000 (metric) Coastal Rail Trail Alignment Concept Plan dated May 28, 1997. None were observed. IV. FINDINGS 1. City of Oceanside The City of Oceanside contains approximately 2.9 miles of proposed trail route between the San Luis Rey River on the north and Buena Vista Lagoon on the south. Of this distance, about 8/10 mite has been previously surveyed for cultural resources in conjunction with other, non-related projects. The results of these investigations indicate that a single archaeological site may be adversely impacted by the undertaking. The site, designated SDt-13212A & B (W-5509) comprises a low density shell scatter and historic trash dump located within the San Diego Northern Railway (SDNR) right-of way near Eucalyptus Street. Disregarding those portions of the proposed route that will follow existing roads, approximately 1.2-miles of this portion of (be route remains to be surveyed for cultural resources. 2. Citv of Carlsbad The City of Carlsbad contains approximately 8-miles of proposed trail route between Buena Vista Lagoon on the north and Batiquitos Lagoon on the south. Of this distance, about 1/2-mile has been previously surveyed for cultural resources in conjunction with other, non-related projects. FROM : THOWS LESLIE & OSSOCIflTES PHONE -NO. : 909 698 0195 Mar. 03 1998 09:14PM Pb The results of these investigations indicate that a single archaeological site may be adversely impacted by the undertaking. The site, designated SDI-6751A through D (W-5508 &W-1874) comprises a scries of marine shell concentrations accompanied by one possible stone implement The site lies within the SDNR right-of-way adjacent to a wastewater treatment plant. Disregarding those portions of the proposed route that will follow existing roads, approximately 4-milcs of this portion of the route remains to be surveyed for cultural resources. 3. Citv of Encinitas The City of Encinitas contains approximately 6.2-milcs of proposed trail route between Batiquitos Lagoon (at La Costa Avenue) on toe north and San Eujo Lagoon on the south. Of this distance, none has been previously surveyed for cultural resources. Consequently, no archaeological or historical resources have been recorded within this portion of the route. Disregarding those portions of the proposed route that will follow existing roads, approximately 4.4-miles miles of this portion of the route remains to be surveyed for cultural resources. 4. Citv of Solana Beach The City of Solana Beach contains approximately 1.7-miles of proposed trail route between San Elijo Lagoon on the north and Via de la Vallc on the south Of this distance, nearly all (1.3-miles) has been previously surveyed for cultural resources in conjunction with other, non-related projects. However, no archaeological or historical resources have been recorded within this portion of the route. Disregarding those portions of the proposed route that will follow existing roads, approximately 4/10 mile miles of this portion of the route remains to be surveyed for cultural resources. 5. Citv of Pftfl Mar The City of Del Mar contains approximately 3.1 -miles of proposed trail route between Via de la Valle on the north and Carmel Valley Road on the south. Of this distance, none has been previously surveyed for cultural resources. Consequently, no archaeological or historical resources have been recorded within this portion of the route. Disregarding those portions of the proposed route that will follow existing roads, approximately 1.7 miles of this portion of me route remains to be surveyed for cultural resources. 6. Citv of San Diegg The City of San Diego contains approximately 22.6-miles of proposed trail route between Carmel Valley Road on the north and the Santa Fe Depot in downtown San Diego on the south. Of this s FROM : THOMflS LESLIE 8, fiSSOCIfiTES PHONE NO. : 909 698 0195 Mar. 03 1998 09:16PM P9 Noath half of irate sap of Coastal Eail Trail route illustrating She locations of archaeological sites (astesMs) alignment (iseavy tape). Map is Not-To-Sede. L, fl I AN ARCHAEOLOGICAL ASSESSMENT OF THE PROPOSED 42+MILE * COASTAL RAH, TRAIL PROJECT: OCEANSIDE TO SAN DIEGO, _p SAN DIEGO COUNTY, CALIFORNIA by lr?| (, Robert S. White Laura S. White I" II Thomas Leslie & Associates 32395 Clinton Keith Road, Suite B7 1 1 Wildomar, CA 92595 1 (909) 698-0195 I' I (FAX) 698-2233 ii for '* ! Transtech Engineering Inc. 424 Summit Street, Suite 120 I i Oceanside, CA 92054 , ,. Revised 1( May 26, 1999 | [ . Study Area USGS 7.5' Topographic Quadrangles: t j Oceanside, San Luis Key, Encinitas, Del Mar, La Jolla, Point Loma .) • '.Study Area Acreage: Linear, 42+miles II . ' • KEYWORDS: Coastal Rail Trail, San Diego County, 42±miles Ii The undersigned certifies that the attached report is a true and accurate description of the I | results of an ARCHAEOLOGICAL survey project described herein. , Ij Laura S. White Principal Investigatoru r> TABLE OF CONTENTS ' t ' ' "• ' ,('?•' '' Paie'' ' '• l ' Management Summary . . . ... . . . . v | I. INTRODUCTION ...... . . 1 | II. SETTING ..... . . . .1 I III. SAN DffiGO COUNTY PREHISTORIC ..... 3 : CULTURE SEQUENCE IV. RECORD SEARCHES . . ..... 6 I ; ' ' V. FIELD SURVEY . . . . . . . . 12 ) ,' VI. CONCLUSIONS AND RECOMMENDATIONS . . . 27 REFERENCES CITED . ..... . 35 I LIST OF FIGURES Page Figure 1. Regional location of proposed Coastal . . . . 2 Rail Trail as indicated on portions of the USGS Santa Ana and San Diego 1:250,000 scale Topographic Map Sheets. Figure!. Northern half of project index map showing . . . . 4 areas to be surveyed as well as general locations of previously recorded archaeological sites. i Figures. Southern half of project index map showing .... 5 areas to be surveyed as well as general locations of previously recorded archaeological sites. Figure 4. Archaeological site location and sections . . . . 14 of route that were surveyed in the City of Oceanside as shown on portions of the Oceanside and San Luis Key USGS 7.5'Topographic Quadrangles. Figure 5. Archaeological site location and sections of . . . . 15 route that were surveyed in the City of Carlsbad as shown on a portion of the San Luis Key USGS 7.5' Topographic Quadrangle. Figure 6. Section of route that was surveyed in the City . . . 16 of Carlsbad as shown on a portion of the Encinitas USGS 7. J' Topographic Quadrangle. Figure 7. Northern section of route that was surveyed in . . . 18 the City of Encinitas as shown on a portion of the Encinitas USGS 7.5'Topographic Quadrangle. Figures. Southern section of route that was surveyed in . . . 19 the City of Encinitas as shown on a portion of the Encinhas USGS 7.5'Topographic Quadrangle. Figure 9. Sections of route that were surveyed in the .... 20 City of Solana Beach as shown on portions of the Encinitas and Del Mar USGS 7.5' Topographic Quadrangles. -- r r r r ! i IS. I I LIST OF FIGURES (Cont'd) Page Figure 10. Section of route that was surveyed in the City . . . 22 r| of Del Mar as shown on a portion of the Del Mdf USGS | | 7.5' Topographic Quadrangle. Figure 11. Section of route that was surveyed in the City . . .23 of San Diego as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. Figure 12. Archaeological site location and section of route . . 24 that was surveyed in the City of San Diego as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. Figure 13. Archaeological site location in the City of San Diego . . 26 I j as shown on a portion of the La Jolla USGS 7.5' Topographic •- Quadrangle. v It LIST OF TABLES •. ) . • \ Page Table 1. Summary of Unsurveyed Portions of Trail Route by City . . 7 I Table 2. Summary of Known Archaeological Sites Within Route . . 8 by City. -111- I I I I 1 I I [ I I I I LIST OF PLATES Page Plate 1. Top: Looking northwest toward San Luis . . . . 30 Rey River (beginning of trail) along the Oceanside section of trail. Bottom: Looking northwest along Carlsbad section of trail from vicinity of SDG&E power plant facility. Plate IL Top: Looking southeast along route in . . . 31 vicinity of San Elijo State Park, City of Encinitas. Bottom: Looking northwest along route from vicinity of 8th Street cul-de-sac, City of Del Mar. Plate HI. Top: Looking east/southeast along route . . . . 32 from vicinity of Carmel Mountain Road, City of San Diego. Bottom: Looking southeast along route from vicinity of Sorrento Valley Boulevard, City of San Diego. Plate IV. Top: Looking northeast along route adjacent . . . 33 to Soledad Canyon, City of San Diego. Bottom: Looking south along route at Miramar Road Overpass, City of San Diego. Plate V. Top and Bottom: Phase I Extended Survey taking . 34 place along Sorrento Valley Road and SDNR tracks at SDI-4513/5443/4609 site complex. Looking west toward westerly end of "midden area". Note fiber optics cable marker (orange and white pole) in right-center of lower photograph. -IV- ir |( MANAGEMENT SUMMARY | | At the request of Transtech Engineering Inc., Thomas Leslie & Associates has undertaken an archaeological assessment of 41-miles of the proposed 42-mile Coastal Rail Trail I\ | Project. One-mile of the route along Carmel Valley Road has been removed from this project i ': • and is being addressed independently by the City of San Diego. _/• || Presently, it is desired to develop a formal coastal trail for bicyclists, joggers and skaters adjacent to the old AT & SF right-of-way (now the San Diego Northern Railway) between the City of Oceanside and the Santa Fe Depot in the City of San Diego, San Diego County. The purpose of this project was to identify all potentially significant locations of archaeological I ; I interest that may be adversely impacted by the Coastal Rail Trail undertaking. The results of the record searches conducted at the South Coastal Information Center I! | at San Diego State and the San Diego Museum of Man indicated that approximately half of the 42-mile route had been previously surveyed for cultural resources. These previous assessments (' ( ': \ resulted in the discovery of four (4) archaeological sites that lie within the project alignment. Of the four sites, two have been determined to be insignificant, a third has beenKi ! '[ destroyed by construction and the fourth has been destroyed by highway, utility and railway construction and replaced with imported fill. Recommendations call for construction I 1 monitoring by a qualified archaeologist during earthmoving operations connected with the j« , proposed project at two of the four sites (SDI-6751A-C [Carlsbad] and the I ' P SDI-4513/4609/5443 complex [San Diego]). No further work in conjunction with cultural tl , resources is recommended at the remaining two (SDI-13212A & B [Oceanside] and ' SDI-12453H [San Diego]). •j The field reconnaissance of the previously unsurveyed portions of the route did not • ' result in the discovery of any new prehistoric or historic archaeological sites. I I I I -v- in r in i I i i I i K I Hi I. INTRODUCTION At the request of Transtech Engineering Inc., Thomas Lesli<e & Associates has undertaken an archaeological survey of 41-miles of the proposed 42-mile Coastal Rail Trail Project. The divorced, brie-mile section of route along Carmel Valley Road is being addressed independently by the City of San Diego in a separate environmental document. Presently, the Cities of Carlsbad, Del Mar, Encinitas, Oceanside, Solona Beach, and San Diego, in conjunction with the North San Diego County Transit Development Board, the San Diego Metropolitan Transit /Development Board, and the San Diego Association of Governments, desire to develop a formal, multiple-use recreational trail. The proposed trail will .accommodate bicyclists, walkers, joggers, and skaters. For the most part, the route will lie within the old AT & SF right-of-way (now the San Diego Northern Railway) between the City of Oceanside and the Santa Fe Depot in the City of San Diego. the purpose of this study was to identify all potentially significant prehistoric and historic archaeological resources situated within all unimproved sections of the proposed trail route. This information is needed since adoption of the plan could result in adverse effects upon locations of archaeological importance. 'In those areas where the route is diverted onto city streets, no survey was warranted and therefore not undertaken. Our assessment consisted of: (1) records searches conducted to deterrhine whether any previously recorded historic or prehistoric resources are present within the subject alignment, and (2) a field reconnaissance intended to identify any previously unrecorded cultural resources. H. SETTING _ As presently configured, the entire 42-mile alignment lies in the County of San Diego I within the cities of Oceanside, Carlsbad, Encinitas, Solana Beach, Del Mar and San Diego (fig. •! . 1), The project is linear in nature and is generally oriented in a north to south manner *'• ' comprising; portions of the Oceanside, San LuisKey, Encinitas, Del Mar, LaJolla, and Point •| ' Lomd ySGS 7.5' Topographic Quadrangles. Legally, the proposed trail is situated in ^ J Townships 11/12,13,14 15,16 and 17 South, Ranges 3,4, and 5 West, San Bernardino Base I; I Meridian: ,;:•-;'• ':••',' '•:-.• ••'•.. . ,. .• • "• -1- ~i Figure 1. Regional location of proposed Coastal Rail Trail as indicated on portions of the USGS Santa Ana and San Diego 1:250,000 scale Topographic Map Sheets. r r r California Points of Historic Interest. Additional background information was supplemented by pertinent archaeological survey reports and the cultural resource sections from several Environmental Impact Reports. For purposes of this study, the 1:2000 (metric) Coastal Rail Trail Alignment Concept Plan, dated August 28, 1997 (revisions through January 19, 1999) was used in defining the route and determining which sites may be adversely impacted by the undertaking. The results of the survey project are presented in the sections below beginning with Oceanside (north) and terminating in the City of San Diego (south). A. City of Oceanside The City of Oceanside contains approximately 2.9 miles of proposed trail route between the San Luis Rey River on the north and Buena Vista Lagoon on the south. Of this distance, about 8/10 mile had been previously surveyed for cultural resources in conjunction with other, Table 1 Summary of Unsurveyed Portions Trail Route by City City Oceanside Carlsbad Encinitas Solana Beach Del Mar San Diego TOTALS Approximate Total Miles of Route 2.9 8.0 6.2 1.7 3.1 19.6 41.5 Miles of Route Previously Surveyed .8 .5 None 1.3 None 12.3 14.9 Miles of Route Yet to be Surveyed 1.2 4.0 , 4.4 A 1:7 6.4 18.1 -7- Table 2 Summary of Known Archaeological Sites Within Route by City City Oceanside Carlsbad Encinitas Solana Beach Del Mar San Diego TOTALS Number of Sites 1 1 None None None 2 4 Site Trinomial(s) SDI-13212A&B SDI,6751 A thru C , > (1) SDW5 13/46097 SDI- 5443 complex (2) SDI-12453H Type Prehistoric/Historic Prehistoric Prehistoric Prehistoric/Historic non-related projects. Disregarding those portions of the proposed route that will follow existing roads, approximately 1.2-miles of route remained to be surveyed (Table 1). The results of the searches indicated that a single archaeological site had been recorded within a previously surveyed portion of the alignment (Table 2). The site, designated SDI- 13212A& B (W-5509) comprises a low density shell scatter and historic trash dump located within the San Diego Northern Railway (SDNR) right-of-way (ROW) near Eucalyptus Street. An archaeological test program was conducted at SDI-13212A & B by Ogden Environmental and Energy Services, Inc. in 1993 (Pigniolo and Crawford 1993). The results of the test concluded that the site had no integrity as the deposit comprised redeposited fill material. It was determined that the site was not important pursuant to CEQA criteria nor eligible for listing in the National Register of Historic Places (Ogden Environmental and Energy Services 1996). Consequently, no further work was recommended. -8- r r I The results of the field inspection of each of the four previously recorded sites as well . 1 as the field survey are presented in the sections below. For clarity, the route is broken down I-j by city from north to south. ,),-'. ' .- ' ' " • . ' , - '' • • ^ . - I ) A. City of Qceanside ''*'•• .•'./ / ...'.-.'' The field study for this section of the route began with reconnoitering I prehistoric/historic site SD1-13212 A & B (W-5509). The site is mapped within the trail route 1 •'• on the north side of the tracks at Eucalyptus Street (fig. 4), As has been previously discussed, K| the site has been determined to represent redeposited fill material containing marine shell and i •' "•' • :'->' .' ;'..', ' • ' •'••historic debris. It does not represent a significant resource and no further work has been I[ recommended (Ogden Environmental and Energy Services 1996). The field inspection of the • :: • V" - •"••'.•"'• site indicated that the entire area had been seriously disturbed in Conjunction with the railway I! i and adjoining commercial development. We concur that no further work is warranted at this location. || i The field survey of this 1.2-mile portion of the route comprised: 1) a 2/10 mile stretch between the San Luis Rey River on the north arid Cleveland Street on the south, and 2) a 1- |i ! mile section between Buccaneer Beach Park on the north and Buena Vista Lagoon on the south (fig. 4, PL I:top). The results of the field survey were entirely negative. No archaeological |j resourcesof any kind were encountered within either of the two sections. •1 , B. Citv of Carlsbad IP The field study'for this section of the route began with reconnoitering prehistoric site SD1-6751 A, B and C (W-5508). Loci D of the site lay outside the study area and was not checked. Loci A^B and C are mapped within the trail route on the north side of the tracks adjacent to the San Diego Gas & Electric Power Plant (fig. 5). As has .been previously discussed, the subject three loci have been test excavated and evaluated for significance. The results of the evaluation program indicated that none of the three loci represent an important resource. Consequently, no further ?\york has .been recommended other than .rnpnitoring grading activities during construction (Pighiolo and Crawford 1993). 'Lj • -13- Li SURVEYED SECTION ; IV i Ii! Oceanside-Carlsbad Country Club OCEANSIDE (BM 47) ! -^ \ \*f *" A ^ i: J . \NJ //^ • SURVEYED SECTION Figure 4 Archaeologica] site location and sections of route that were surveyed in the City of Qceanside as shown on portions of the Ocednside and Sen Luis Key TJSGS 7.5' Topographic Quadrangles. Note: this map is confidential and not for public distribution. , r r r r i i i I! Army, and Navy\Acadenw v •-.'5 x \SURVEYED SECTION SURVEYED SECTION FigureS Archaeological site location and sections of route that were surveyed in the City of Carlsbad as shown on a portion of the San Luis Rey USGS 7.5' Topographic Quadrangle. Note: this map is confidential and not for public distribution. I I I I I I I I I The field inspection of the three loci of SDIT6751 indicated that indeed a marine shell scatter is evident. The scatter also appears to extend into the SDG&E facility as well. We concur that monitoring of construction/grading activities is warranted at this location. The field survey of this 4-mile portion of the route comprised: 1) a 1/2-mile stretch between Buena Vista Lagoon on the north to Grand Avenue on the south, and 2) a 3.5-mile section between Oak Avenue on the north to Avenida Encinas overpass at Carlsbad Boulevard on the south (figs. 5 & 6; PI. Iibottom). The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. C. City of Encinitas Since no previously recorded sites had been mapped within this portion of the route, the field study for this section comprised only the pedestrian survey of 4.4-miles consisting of 1) a 2.5-mile stretch between La Costa Avenue on the north and Encinitas Boulevard on the south, and 2) a 1.9-mile section between '£' Street on the north to Chesterfield Drive on the south (figs. 7 & 8; PI. Rtop). The field survey of the section between La Costa Ave. and Encinitas Blvd. also took into account the proposed alternative route that lay on the north side of the tracks. The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. D. City of Solana Beach Since no previously recorded sites had been mapped within this portion of the route, the field study for this section comprised only the pedestrian survey of 4/10 of a mile consisting of; 1) a 2/10-mile stretch between Cardiff State Park at San Elijo Lagoon on the north to Ocean Street on the south, and 2) a second 2/10-mile section between Cofair Avenue on the north and Via de la Valle on the south (fig. 9). The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. , -17- SURVEYED SECTION Figure 6 Section of route that was surveyed in the City of Carlsbad as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle, I I I SURVEYED SECTION Figure 7 Northern section of route that was surveyed in the City of Encinitas as shown on a portion of the Encinitas USGS 7.5' Topographic Quadrangle. •£. MOONIJGHT K STATE BEACH S / Eneinitastf (BM 91) SURVEYED SECTION Cardiff-by-the-Sea^ (Cardiff)1'. Figures Southern section of route that was surveyed in the City of Encinitas as shown on a portion of the EncinitasUSGS 7.5' Topographic Quadrangle. : SURVEYED SECTION SOLANA BEACH T COUNTY PARK.; SURVEYED SECtlON Figure 9 Sections of route that were surveyed in the City of Solana Beach as shown on portions of the Encinitas and Del Mar USGS 7.5' Topographic Quadrangles. n I I E. Citv of Del Mar V " ; Since no previously recorded sites had been mapped within this portion of the route, the field study for this section comprised only thE pedestrian survey of a 1.7-mile stretch of the trail alignment. The subject section lies between Ocean Avehiie at Coast Boulevard on the north to Torrey Pines State Reserve on the south (fig. 10; PI. ILbottorri). The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. r n n I ' ^ " " * ' - ' ' •'' F. Citv of San Diego I I The field study for this section of the route began with reconnoitering the SDI- 45 13/5443/46097 prehistoric site complex. The complex is located on both sides of the tracks | | approximately 5/8-mile southeast of Sorrento Valley Boulevard in Sorrento Valley (fig. 12). As has been previously discussed, only the interconnecting "midden area" of the complex lies I ; within the proposed route. The field inspection of the proposed trail route confirmed that the area it will traverse is extremely disturbed by both the construction of Sorrento Valley Road, I ' underground utilities (fiber optics cable) and construction/maintenance of the elevated SDNR railbed. Although some marine shell was observed eroding out of the elevated railbed, it is I ' .' ' . . abundantly clear that the berm is composed of imported fill material. Where the fill material originated from is difficult to say. In any event, no lithics or ground stone artifacts were |i observed with the marine shell. An inspection of the ground adjacent to the track berm where the trail will run indicated |j , that there was no soil Ithat could be clearly characterized as "midden" and what few pieces of - marine shell were in the trail route had probably washed put of the adjoining berm. •1 If ' . • ''••:•i Consequently, an extended Phase I Survey of this portion of the route was undertaken. The I field \yqrk comprised excavation of thirty-one (3 1) post holes whose intent was to establish the i presence, or the lack thereof, of a buried archaeological deposit (PI. V, fig. 14). a i The holes were placed on 20-meter centers along the portion of route that traverses the * SDI-45 13/5443/4609 site complex. Each hole was manually excavated using a clam shell post Ii i hole digger., Wiiere extremely compacted soil was encountered, a steel digging bar was usedu ' ' " ' ; ... ,v'.' . ;" ,- .' -; . -21- SURVEYED SECTION Figure 10 Section of route that was surveyed in the City of Del Mar as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. p ( I I ( i i I j t I i i i Figure 11 f- • •• : •;-••' '•""'• .„,'.'* ' • ' " '« '•'-'' ' Section of route that was surveyed in the City of San Diego as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. ...... , • SUIWEYEO ACTION Figure 12 Archaeological site location and section of route that was surveyed in the City of San Diego as shown on a portion of the Del Mar USGS 7.5' Topographic Quadrangle. Note: this map is confidential and not for public distribution. r in conjunction with the posthole digger; All backdirt was screened through 1/8-inch mesh and r, finds were bagged according to hole; Soil paste-ups were also made for each hole. Depth of I I " ', "'; "'•„•; '.'*'- '"••"' : ." ;' |! ;the holes averaged 30 cm. (12-inches). , ^ ; ',% , - • '.-,'-!':."; • .. ' ,. The results of the post holing program confirmed that'indeed, the top 12-18 inches of I 1 soil was comprised wholly of fill material containing quantities of creosote, asphalt, railroad *' - •*'• : t '--'-.'.• •-• , "• . j I i aggregate as well as modern metal and plastic Debris. No stone tools, lithic debitage, fire- | " '• ' '.",'::-.' ,. :'- '•.-;: ;•' ' • .affected rock, or any artifactual material of any kind was recovered from any of the holes. • ; However, a few pieces of fragmented marine shell were recovered from the 1", 2nd and 4* •• holes. This was not unexpected as these holes' correspond with the area of surface marine shell t | eroding from the railroad berm. > i • : ' " : . Clearly, there is no detectable archaeological deposit within the top 12-18 inches of soil I j along this section of proposed trail. Since trail construction along this section of the route will not extend below 12-inches, no adverse impacts will occur to'any deposit that may lie deeper, I '• however unlikely. Consequently, we do not believe that any intact portion of the site complex remains within the proposed trail route; I I The second previously recorded prehistoric site in this portion of the alignment is SDI- I ; • - 12453H. It lies approximately 300 feet north of the Tecolote Overpass on both sides of the I ! tracks near Fiesta Island (fig. 13). As previously discussed, the site was dubiously characterized as a marine shell scatter that contained a historic component. However, it has I1 i • ' • ' l been noted that the site had been destroyed by construction activity and no further work was .-'.v ' . • • recommended (Ogden Erivifonmentall995:5-128).' A field inspection of the site area did I ~ ' • . , .\ reveal a few pieces of marine shell and historic bottle glass. However, we are in complete agreement that the site, if it was ever actually a site, has been destroyed through construction I of an outflow channel and adjoining sanitary sewers. s The field survey of this 6.4-mile portion of the route comprised: 1) a 1/2-mile stretch Bj . . . • .-:- - .. • '.,•>' -.-..-•. ....•••'• • •'-. '•.-••• : -•" -•-ml between a point south of the intersection of Carmel Valley Road and Camino Del Mar on the I , north to the intersection of Del Mar Scenic Parkway and Carmel Valley Road on the south, 2) Il a 5.9-mile portion between Sorrento Valley Road on the north and Miramar Road on the south (figs. 11 & 12; PI. Ill & TV). As previously discussed, the one-mile portion of rpute along ;,II I!-25- Figure 13 Archaeological site location in the City of San Diego as shown on a portion oftheLaJolla USGS 7 5' Topographic Quadrangle. Note: this map is confidential and not for public distribution. inI I Carmel Valley Road from Del Mar Scenic Parkway on the north to Sorrento Valley Road on the south is being studied independently by the City of San Diego and is not-a-part of this project. The results of the field assessment were entirely negative. No archaeological resources of any kind were encountered within either of the two sections. f f I VL CONCLUSIONS AND RECOMMENDATIONS I The results of our study indicate that four (4) archaeological sites lie within the I proposed route. Of the four, two have been evaluated and found to be insignificant (SDI- 13212A & B and SDI-6751A, B & C) and a third, SDI-12453H, has been destroyed The I ; results of the extended Phase I Survey along Sorrento Valley Road in the vicinity of the fourth * site (SDI-4513/5443/4609 site complex) were entirely negative and we conclude that the I , nebulous "midden area" at this location represents imported fill material. The following recommendations, organized by city, should be implemented in order I to adequately address the archaeological resources that are located or may be located within the proposed Coastal Rail Trail route. I A. City of Oceanside , I The single prehistoric site identified within the City of Oceanside, SD1 -13 212 A & B (W-5509), has been evaluated and determined to be insignificant (Ogden Environmental and I ji Energy Services 1996:3.6-8). No further work in conjunction with cultural resources isI recommended. II. v - • B. Citv of Carlsbad I i I The single prehistoric site identified within the City of Carlsbad, SDN6751 A, B and C (W-5508), has been evaluated and determined to be insignificant (Pigniolo and Crawford | 1993:5-5). Although no further excavation at the site is warranted, it is recommended that , grubbing and/or earthmoving activities in conjunction with construction of the trail bei i i monitored by a qualified archaeologist. -21- I I I I I C. City of Encinitas No archaeological resources have been identified within the City of Encinitas. Therefore, no further work in conjunction with cultural resources is recommended. D. Citv of Solona Beach No archaeological resources have been identified within the City of Solona Beach. Therefore, no further work in conjunction with cultural resources is recommended. " E. Citv of Del Mar i No archaeological resources have been identified within the City of Del Mar. Therefore, no further work in conjunction with cultural resources is recommended. F. City of San Diego I 1. SDI-4513/5443/4609 complex Subsurface testing in that portion of prehistoric site complex SDI-4513/5443/4609 which is mapped within the trail route, failed to reveal any evidence of a buried archaeological deposit. Rather, the soil contains large quantities of modern debris and trash. The site, if it ever actually existed in this area, has been destroyed by highway, utility and railway construction and replaced with imported fill. However^ due to the sensitive nature of the area and the proximity of the trail route to the important areas of the complex, it is recommended that any grubbing and/or earthmoving activities in conjunction with construction of the trail be monitored by a qualified archaeologist. If buried archaeological material is encountered during the course of trail construction, the archaeologist should have the authority to temporarily halt the earthmoving activities until such a time that the significance of the find(s) can be determined. 2.SDI-12453H It has been determined that site SDI-12453H, located approximately 300 feet north of the Tecolote Overpass near Fiesta Island, has been destroyed (Ogden Environmental and -28- p • ' • '•". /! Energy Services 1995:5-128). Consequently, no further work in conjunction with cultural • I I / I I I resources is recommended. -29- Plate I Top: Looking northwest toward San Luis Rey River (beginning of trail) along the Oceanside section of trail. Bottom: Looking northwest along Carlsbad section of trail from vicinity of SDG&E power plant facility. I r r i i u Plate II Top: Looking southeast ajpng route in vicinity of San Elijo State Park; City, ofiEncinitas. Bottom: Looking northwest along route from vicinity of 8th Street cul-de-sac, Gity-of Del Mar Plate III Top: Looking east/southeast along route from vicinity of Carmel Mountain Road, City of San Diego Bottom: Looking southeast along route from vicinity of Sorrento Valley Boulevard, City of San Diego. •r rt ! fei t i i i l I t Plate IV Top: Looking northeast along route adjacent to Soledad Canyon, City of San Diego. Bottom: Looking south along route at Miramar Road overpass, City of Sari Diego. t I I I ,. . ::v::-. .; m^m^m^---:-£i^£4?J.;.^,.-..j2.*S£ : • ; • ;•. !~^^^^-'.i: ••'•'• ^~ PlateV Top and Bottom: Phase I Extended Survey taking place along Sorrento Valley Road and SDNR tracks at SDI-4 513/5443/4609 site complex. Looking west toward westerly end of "midden area". Note fiber optics cable marker (orange and white pole) in right-center of lower photograph. F I I! li II I REFERENCES CITED CARRICO, RICHAND L. and CLIFFORD V. TAYLOR 1980 Phase I Test Excavations of Portions of SDI-5443 Situated on Hallmark Circuits, Inc. Property. Westec Services, Inc. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. CARRICO, RICHARD, ANDREW PIGNIOLO, and DANIELLE HUEY 1992 Phase I Historic Properties Inventory of the Mid-Coast Corridor Transportation Alternatives. Ogden Environmental and Energy Services Co., Inc. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. EIDSNES, JANET, DOUG FLOWER, DARCY DOE, and LINDA ROTH 1 1979 Archaeological Investigation of Sorrento Valley Road Pipeline Project-Limited Linear Test, City of San Diego. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. I HECTOR, SUSAN and SUE WADE 1986 Excavation of a portion of SDI-4513, The Rimbach Site, City of San Diego, II California. RECON. Unpublished manuscript on file with the South Coastal i Information Center, San Diego State University. < KYLE, CAROLYN, DENNIS GALLEGOS, and RICHARD CARRILO 1989 Village of Ystagua (Rimbach SDI-4513) Testing, Significance, and Management. ERC Environmental and Energy Services, Co., Inc. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. OGDEN ENVIRONMENTAL AND ENERGY SERVICES CO., INC. 1995 Historic and Archaeological Resources. In: Mid-Coast Corridor, San Diego California. San Diego Metropolitan Transit Development Board. 1996 Screencheck Draft: Environmental Assessment/Subsequent Environmental Impact Report for the Oceanside-Escondido Rail Project. North County Transit District. -35- PIGNIOLO, ANDREW, and KATHLEEN CRAWFORD 1993 Archaeological Testing and Evaluation of the North county Transit District I Maintenance Facility Alternatives Oceanside, and Carlsbad, CA. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. I ROSEN, MARTIN D. 1987 Extended Phase I Investigation on the Periphery of C A-SDi-4513 Locus D of I the Rimbach Site, A Portion of the Ethnographic Village of Ystagua, Sorrento Valley, City of San Diego, California. California Department of Transportation. Galtrans District 11. San Diego. SMITH, BRIAN F. I 1992 A Cultural Resources Study for the -Rose Canyon Trunk Sewer Project. Brian F. Smith and Associates. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. STRUDWICK, IVAN and DENNIS GALLEGOS 1 1994 Historical/Archaeological Survey and Test Report for the Poinsettia Lane Project, Carlsbad, California. Gallegos and Associates. Unpublished manuscript on file with the South Coastal Information Center, San Diego State I University. I I I I THE EARTH TECHNOLOGY CORPORATION 1993 A Cultural Resources Assessment for the Lomas Santa Fe Grade Separation, Solana Beach, California. Unpublished manuscript on file with the South Coastal Information Center, San Diego State University. WALLACE, WILLIAM J. 1955 A Suggested Chronology for Southern California Coastal Archaeology. Southwestern Journal of Anthropology, Vol. 11, No. 3., pp. 214-230. -36- I n APPENDIX A: I I IF j Record Search Cover Letters I i I I II! II! h LJ South Coastal Information Center Social Science Research Laboratory Son Diego State University College of Arts and tettersr] 5500 Campanile Drive San Diego CA 92182-4537 I 619-594-5682 FAX:619-594-1358 I r f i i i ii CALIFORNIA HISTORICAL RESOURCES INFORMATION SYSTEM SITE FILES RECORD SEARCH Source of Request: Date of Request: Date Request Received: Project Identification: Michael Brandman Associates: Henry Koerper July 25, 1997 September 10, 1997 Coastal Rail Trail 0 The South Coastal Information Center historical files show NO recorded sites within the project area nor within 1/2 mile of the project boundaries. (X) The South Coastal Information Center historical files show recorded site location(s) with the projected area and/or within 300 feet of the project. Project maps have been reviewed. The bibliographic material for reports in your project area and/or within one mile have been included. The historic maps on file at the South Coastal Information Center have been reviewed as have the National Register, State Landmarks, and Points of Historic Interest. If there are historic properties noted in those materials, in your area, the information has been included. Archaeological/Historic Site check: GLJ Date: 9/16/97 Project Map/Bibliographic check: GLJ Date: 9/16/97 Historic check: GLJ Date: 9/16/97 Li THE CALIFORNIA STATE UNIVERSITY - Bokersfield • Channel Islands - Chko. Dominguez Hills. Fresno • Fullerton - Hoyward - Humboldt. long Beach • Los Angeles • Maritime Academy Monterey Boy • Northridge • Pomona • Sacramento • San Bernardino • Son Diego • San Francisco • Son Jose • San Luis Obispo « San Marcos • Sonoma • Stanislaus in in San Diego Museum of Man Page 1 of 2 REPORT ON ARCHAEOLOGICAL SITE FILES RECORD SEARCH Source of Request: Name of Proj ect: Date of Request •Date Request Received: Archaeological Associates - Laurie White Coastal Rail Trail 29 October 1997 3 November 1997 The Record Search for the above referenced project has been completed. (Per the attachment, sites have not been included which were listed.) Archaeological site file information is enclosed for the following sites located within or in the vicinity of the project area: W-20 W-80 W-97 W-468 W-1274 W-2463 W-2744 W-3000 W-3671 W-4674 W-5260 W-5509 W-6106 . W-21 W-82 W-lll W-939 W-1445A W-2471 W-2745 W-3543 W-3672 W-4701 [thru] W-5263 [thru] W-5793 W-6107 W.-29 W-83 W-127A W-1124 W-1627B W-2472. W-2948 W-3630 W-3933 W-4703 W-5268 W-5794 W-6540 W-35 W-87 W-265 W-1271 W-1668 W-2485 W-2974 W-3666 W-4395G.I Wr4856 W-5506 W-6081 [thru] W-50 W-89 W-291 W-1273 W-1891 W-2570 W-2999 W-3668 W-4585 W.-5026 W-5508 W-6086 1350ElPrado, Balboa Park, San Diego, California 92101; 619-239-2001, FAX 619-239-2749 An educational, nonprofit corporation founded in 1915 collecting for posterity and displaying the life and history of mankind. San Diego Museum I Page 2 of 2 I Bibliographic information is enclosed for the following reports on archaeological environmental impact studies conducted within or in the vicinity of the project area: EIS-6 EIS-81 EIS-240 EIS-490 EIS-616 EIS-661 EIS-734 EIS-926 EIS -1128 EIS-1180 EIS-1338 EIS-1367 EIS-1407 EIS-1467 EIS-1585 EIS-18 E:IS-86 EIS-276 EIS-521 EIS-641 EIS-667 EIS -784 EIS-962 EIS-1134 EIS-1198 EIS-1339 EIS-1372 EIS-1414 EIS-1473 EIS-26 EIS-139 EIS-338 EIS-524 EIS-645 EIS-674 EIS-799 EIS-1066 EIS-1138 EIS-1320 EIS-1353 EIS-1375 EIS-1423 EIS-1495 EIS-31 EIS-195 EIS-340 EIS-571 EIS-648 EIS -7 23 EIS-849 EIS-1088 EIS-1140 EIS-1321 EIS-1354 EIS-1403 EIS-1429 EIS-1513 EIS-61 EIS-211 EIS-404 EIS -598 EIS-651 EIS-733 EIS-873 EIS-1109 EIS-1169 EIS-1334 EIS-1361 EIS -1404 EIS -1448 EIS -1540 This Record Search is based only on information contained in the files of the San Diego Museum of Man. Archaeological site records and/or environmental impact studies pertaining to the project area may exist in other repositories. Record Search prepared by: Date of Record Search: Grace Johnson 3 November 1997 ISSOElPrado, Balboa Park, San Diego, California 92101, 619-239-2001, FAX 619-239-2749 An educational; non-profit corporation-founded in 1915 collecting for posterity and displaying the life and history of mankind. State of California Business, Transportation, and Housing Agency MEMORANDUM To: Richalene Kelsay Date: Augusts, 1999 Environmental Analysis A File: Oceanside to San Diego Rail to Trail 965100-3ENVR-1041 From: CALIFORNIA DEPARTMENT OF TRANSPORTATION - DISTRICT 11 Environmental Analysis Branch B Subject: Completion of Section 106 Studies and Filing of Historic Property Survey Report for the Proposed Oceanside to San Diego - Rail to Trail - TEA Project Attached for your files is the Historic Property Survey Report (HPSR) for the above mentioned undertaking. The cities of Oceanside, Carlsbad, Encinitas, Solano Beach, Del Mar, and San Diego, in conjunction with FHWA, SANDAG, and NCTDB, using federal TEA funding, propose to construct a formal, multiple-use, recreation trail that will extend from the city of Oceanside, to the Santa Fe Depot in San Diego, following mostly existing 'AT&SF right-of-way. No new cultural resources were recorded during the course of Section 106 studies, and those sites that were previously reposed nearby do not extend into the project's Area of Potential Effects (APE). This undertaking will have No Effect on any historic properties that have been listed on, or determined eligible for listing on, the National Register of Historic Places or the California Register of Historical Resources. Section 106 requirements were completed on June 9,1999,; when Jeffery S. Lewis, FHWA Senior Transportation Engineer, reviewed and signed the attached Section 106 documentation. The studies, were prepared by Robert White and Laurie White of Archaeological Associates, for Thomas Leslie & Associates-and for Wallace, Roberts & Todd, Project oversight was provided by myself. Should you have any questions or comments regarding the above or the attached,, please do not hesitate to contact me at 619/688-6751, or.by email aLMartin.R0sen@dot.ca.gov. Thank you. Martin D. Rosen District 11 Heritage Preservation Coordinator MDR:mdr Enclosure cc:SGlasgow/RKelsay CWhite/Environmental Files JCorum/Archaeology Files MProctor - HQ Environmental Program LChristenson - SCIC/SDSU PGentry - Wallace, Roberts &. Todd State of California MEMORANDUM To: Richalene Kelsay Environmental Analysis A Business, Transportation, and Housing Agency Date: August 5, 1999 File: Oceanside to San Diego Rail to Trail 965100-3ENVR-1041 From: CALIFORNIA DEPARTMENT OF TRANSPORTATION - DISTRICT 11 Environmental Analysis Branch B Subject: Completion of Section 106 Studies and Filing of Historic Property Survey Report for the Proposed Oceanside to San Diego - Rail to Trail - TEA Project Attached for your files is the Historic Property Survey Report (HPSR) for the above mentioned undertaking. The cities of Oceanside, Carlsbad, Encinitas, Solano Beach, Del Mar, and San Diego, in conjunction with FHWA, SANDAG, and NCTDB, using federal TEA funding, propose to construct a formal, multiple-use recreation trail that will extend from the city of Oceanside, to the Santa Fe Depot in San Diego, following mostly existing AT&SF right-of-way. No new cultural resources were recorded during the course of Section 106 studies, and those sites that were previously recorded nearby do riot extend into the project's Area of Potential Effects (APE). This undertaking will have No Effect on any historic properties that have been listed on, or determined eligible for listing on, the National Register of Historic Places or the California Register of Historical Resources. Section 106 requirements were completed on June 9, 1999, when Jeffery S. Lewis, FHWA Senior Transportation Engineer, reviewed and signed the attached Section 106 documentation. The studies were prepared by Robert White arid Laurie White of Archaeological Associates, for Thornas Leslie & Associates and for Wallace, Roberts & Todd; Project oversight was provided by rhyself. Should you have any questions of comments regarding the above or the attached, please do not hesitate to contact me at 619/688-6751, or by email atJy4artin.Rcxsen@dot.ca.aov. Thank you. Martin D. Rosen District 11 Heritage Preservation Coordinator MDR:mdr Enclosure cc:SGlasgow/RKelsay CWhhe/Environmental Files JCoruni/Archaeology Files MProctor -1IQ Environmental Program LChrislenson - SC1C/SDSU PGentry - Wallace, Roberts & Todd n Department of Transportation < s HISTORIC PROPERTY SURVEY REPORT - NEGATIVE FINDINGS-Page 1 1. HIGHWAY PROJECT DESCRIPTION AND LOCATION District 11 County San Diego Route Coastal Rail Trail-SDNR railroad route PM/KP N/A Expenditure Authorization 965100-3ENVR Description: Presently, the Cities of Carlsbad, Del Mar, Encihitas, Oceanside, Solona Beach, and San Diego, in conjunction with the Federal Highway Administration (FHWA), North San Diego County Transit Development Board, San Diego Metropolitan Transit Development Board, and San Diego Association of Governments, desire to develop a formal, multiple-use recreational trail. The proposed trail will accommodate bicyclists, walkers, joggers, and skaters. For the most part, the route will lie within the old AT & SF right-of-way, now the San Diego Northern Railway (SDNR), between the City of Oceanside and the Santa F.e Depot in the City of San Diego. The route begins in Oceanside and extends southward for approximately 42-miles before terminating at the Santa Fe Depot in the City of San Diego. Much of the SDNR railroad route lies along the coastal strand within close proximity to the Pacific Ocean. Diversion from the track alignment is done at most rail stations and in areas where it is;not physically practical to sister the trail adjacent to the tracks. The trail itself will comprise either an 8 or 12-foot wide asphalt path (City of Solana Beach desires a concrete path) with adjoining 2-3 foot wide shoulders of compacted material (e.g. decomposed granite). Presently, depth of disturbance where the trail traverses open ground will not exceed 12 inches. Where possible, the trail route will be incorporated into existing bike lanes on city streets. Consequently, no curb cutting or property takes are planned. Re-striping for bike lanes will occur on those streets not already striped. Bike trails will not be routed onto city sidewalks. Bridges for the route where it crosses over the railway, roads, wetlands/waterways, washes and Agua Hedionda Lagoon will be of varying types. These include an example of a spread footing and pier type over the SDNR tracks, a prefabricated concrete bridge over Balboa Avenue, a wood truss bridge with a concrete deck over the wash at Chesterfield, precast concrete and prefabricated wood truss/aluminum bridges over wetland/waterways, and a cable stayed bridge over the mouth of Agua Hedionda Lagoon. Department of Transportation FHWA Senior Transportation Engineer Approval: Nami Description: Date The Area of Potential Effects (APE) for the Coastal Rail Trail Project was defined by Laura S. White, a SOPA/RPA certified archaeologist, in consultation with: Peggy Gentry, Senior Planner at Wallace, Roberts & Todd; Martin D. Rosen, Caltrans District 1 1 Heritage Preservation Coordinator; and Jeffery S. Lewis, FHWA Senior Transportation Engineer. The APE boundary. for this Class I project was drawn to include: I) all vacant land within the SDNR right-of-way depending on which side of the tracks (sometimes both) the proposed route followed, and 2), where the alignment traverses vacant land outside the SDNR right-of-way, a 15 foot buffer was added to either side of the proposed route unless physically prohibited by existing development. __X_ National Register of Historic Places Year: 1979 & annual supplements to date _ X _ California Inventory of Historic Resources Year: 1976 _ X _ California Historical Landmarks Year: 1 990 & supplemental information to date _ X _ California Points of Historical Interest Year: 1992 & supplemental information to date _ X _ Archaeological Site Records [Name(s) of Institution(s)]: San Diego Museum of Man Date: November 3, 1997 South Coastal Information Center, San Diego State University Date: September 16, 1 997 Local Historical Society [Name]:Date: SHPO: n/a Date: n/a Other: 4. RESUME OF SURVEY • Yes No Archaeological Survey Report X -N/A Attachment No. XBridge Evaluation Historic Architectural Survey Report Historic Research Evaluation Report Historic Studies Report Native American Input Other (Specify): Record Search Letters X South Coastal Information Center, San Diego State University _ San Diego Museum of Man X X X X Department of Transportation HISTORIC PROPERTY SURVEY REPORT-NEGATIVE FINDINGS-Page 3 5. CALTRANS DISTRICT 11 APPROVAL Recommended for Approval: M'arfirrt). Roseif Heritage Preservation Coordinator Approved:£-!/ J^iyV Chris White . Date Chief, Environmental Analysis 6. FHWA DETERMINATION Check One: S^-**- A. No cultural resources are present '—' B. Cultural resources within or within or adjacent to the project's adjacent to the project's APE do APE. not possess any historical, architectural, archaeological or cultural value. Cultural studies are complete and satisfactory; the requirements of 36CFR§800 have been completed. Jeffe^S.^ewis DatZ / Senior Transportation Engineer Historic Property Survey Report - Negative Findings - Preparer: Laura S. White, M.A., Principal Investigator Archaeological Associates P.O. Box 180, Sun City, CA 92586 Tel: (909) 244-1783 May 26, 1999 Technical Study For Mitigated Negative Declaration Coastal Rail Trail Project Oceanside to Del Mar "Coastal Rail Trail Biological Technical Report" Prepared by, Michael Brandman Associates, Inc. February 1999 And '^reassessment of Waters" Prepared by: Thomas Leslie Associates, In. March 2, 1998 Prepared for: Lead Agency City of Carlsbad 1635 Faraday, Carlsbad, CA Tel. (760) 602-4608 Responsible Agencies the Cities of Oceanside, Encinitas, Solana Beach and Del Mar Prepared with assistance by: CLM, Inc. P. O. Box 2286 Vista, CA 92085-2286 Tel. (760)941-9696 October 2000 LJ J ''•/v'V^V'^*<''S ^*i v:** '^' "V : rBife)?^^>^ r^AliiSBAnyiuj^E'sTATio^ v :* -':;/; 4 lwJ*i<-,^C"kV'^ ^4**' f"'" Vt'7'"-"*" s''"-' '"•* ','* ' '--.»<.;lVllv ^jEncinitas?'* ^v,'^"- ,'-»"" ~- - v^'^" ><,;-. \ \.\^ fe^'"•! >N4T'' -s-l/w--v"^ " ."•''*,'*• ^"'.* *:'"' ^ ^ENCINltAS/STATfON ; ''/ '• u : " 'vr:' ' i "*-'^If"* '" v, A. ,;.-.'». , . , . ^, ^.^ lkV/%'n^^' '-- '.- ^;^-'^^ fei^/^^V'-'^'* >\* - ";,^t'v^1*"" -"* jr** - ' ';.'•"--«^V.^^afci--:j.; ; _: *o /,;Is I* '',. SolanalBeachtft vBEACH^STATION.» , ^ ^ '*£ *f £ ^^_SORRENTO^VALLEY STATION ^~}% ri-? 1*1^^^. * ff. » »y*- rt ,i • „" i , * I)?, \Hv!jfe«*x ;^r" V'5^:" -:l\* < n n SAN DIEGO COASTAL RAIL TRAIL BIOLOGICAL TECHNICAL REPORT ] SAN DIEGO, CALIFORNIA Prepared for: Transtech Engineering 424 Summit Street, Suite 120 Oceanside, California 92504 Prepared by: Michael Brandman Associates 15901 Red Hill Avenue, Suite 200 Tustin, California 92780 Contact: Gregg Miller February 1999 San Diego Coastal Rail Trail Biological Technical Report^ TABLE OF CONTENTS EXECUTIVE SUMMARY ......; «..." ............:: 3 I. INTRODUCTION .... , 4 II. PROJECT DESCRIPTION 5 Segments: ' 1. City of Oceanside, San Luis Rey Bicycle Trail Buena Vista Lagoon 5 2. City of Carlsbad, Buena Vista Lagoon-Agua Hedionda Lagoon :. 6 3. City of Carlsbad, Agua Hedionda Lagoon-Batiquitos Lagoon 6 4. City of Encinitas, Encinitas Transit Station-San Elijo Lagoon 7 5. City of Encinitas, Batiquitos Lagoon-Encinitas Transit Station 7 6. City of Solana Beach, San Elijo Lagoon-Via de la Valle 7 7. City of Del Mar, Via de la Valle-Carmel Valley Road : ! 7 8. City of San Diego, Carmel Valley Road-Genesee Avenue 7 9. City of San Diego, Genesee Avenue-Balboa Avenue 8 lO.City of San Diego, Balboa Avenue-Old Town Transit Station : •.., 8 1 l.City of San Diego, Old Town Transit Station to Santa Fe Depot 8 III. METHODS ...:: 9 Literature Review 9 General Surveys : 9 Focused Surveys 10 IV. RESULTS AND CONCLUSIONS :,... 16 Literature Review 16 General Surveys by Segment 21 Focused Surveys '. 21 REFERENCES 26 wjB/2i63Q003.bio 1 Table of Contents San Diego Coastal Rail Trail Biological Technical Report able LIST OF TABLES Paige 1 Segments of the Coastal Rail Trail 5 2 Focused Biological Survey Locations and Survey Dates 11 3 Special Status Plant Species with Potential to Occur Along the Rail Trail 16 4 Special Status Animal Species with Potential to Occur Along the Rail Trail 18 LIST OF EXHIBITS Follows Exhibit Page 1 Proposed Coastal Rail Trail Route 5 2 Segment #1 : .' 5 3 Segment #2 '.. •. 6 4 Segment #3 : '. 6 5 Segment #4 .- .". 7 6 Segment #5 7 7 Segment #6 '.. 7 8 Segment #7 7 9 Segment #8 '. 8 10 Segment #9 8 11 Segment #10 '. 8 12 Segment #11 8 13 Locations of Focused Biological Surveys 10 WJB/2l«0003.bio Table of Contents n/ < San Diego Coastal Rail Trail Biological Technical Report ,-• EXECUTIVE SUMMARY ' Biological resources of the Coastal rail trail were determined through literature review, general biological surveys, and focused surveys for special status species. The literature review included 11 EIRs and technical documents, I biological data from the Multiple Habitat Conservation Program and the Multiple Species Conservation Program, 1 aerial photographs of the corridor route, and other pertinent information. This review indicated that much of the corridor route was developed, but that numerous areas of vegetation occur along the route. The literature review I , also showed the known occurrence of numerous special status species in the area of the corridor. General assessment field surveys of the San Diego Coastal Rail Trail route were conducted by vehicle and on foot '• in mid-April, 1997. During the general assessment, 15 sections of the alignment were identified for subsequent ; ; focused biological surveys. Selection was made based on the presence of protected habitats or habitats that could support special status species. The focused survey were conducted between early May and late-June, 1997. ! ' • • . -.• ' : '. - • '- ' '. • i '•<•'••••• •• •"•'•: The general surveys of the entire route, found that the majority of the proposed alignment for the coastal rail trail passes through commercial, urban and residential developed areas; or areas of disturbed vegetation. Sensitive biological areas in the proposed corridor identified during the general surveys were subject to focused surveys. Focused surveys identified California gnatcatchers at four locations, and Cooper's hawks foraging at one location. No other special status species were observed during the, focused surveys. ! Development of the Coastal Rail Trail is not anticipated to pose a threat to or result in negative impacts to natural habitats or sensitive biological resources over most of its length. Adverse impacts to those few areas identified as sensitive habitats can be mitigated through avoidance. Results of the general surveys were used and will be used to adjust the precise location of the alignment to avoid significant impacts to sensitive biological resources. Results of the focused,surveys were used to develop recommended mitigations to avoid impacts to California gnatcatchers. Recommended mitigations include realignment of the original alignment, performing preconstruction surveys, and conducting habitat disturbance outside the gnatcatcher breeding season (February 15 to July 31). ; . A few areas may represent jurisdiction wetlands and formal delineation surveys should be conducted. Possible impacts to jurisdictional wetlands will require consultation with the Army Corps of Engineers. wjB/2i630003.bio 3 Executive Summary u San Diego Coastal Rail Trail Biological Technical Report I. INTRODUCTION Informal trails along the San Diego Northern Railway right-of-way have been in existence since communities began to develop along the coast. Walking or jogging within the right-of-way and crossing the tracks at unprotected locations is considered trespassing by the railroad. Community interest in developing a formal trail prompted the San Diego Association of Governments (SANDAG) to sponsor a grant application to conduct the "Coastal Corridor Bicycle Path Analysis" in 1989. The study concluded that a formal trail system was feasible for the entire distance from Oceanside to San Diego. i In 1992, the City of Carlsbad, acting as the lead agency, in association with the coastal cities of Oceanside, Encinitas, Solana Beach, Del Mar and Sail Diego, sponsored an ISTEA funding application to conduct a detailed feasibility study. The grant was awarded, and together with an additional grant through a State of California funding project, Transportation Surface Management, the cities embarked on a major effort to plan, design, and construct the longest, continuous rail trail of its type in the country. Feasibility and preliminary design study of the Coastal Rail Trail was begun by a consultant team headed by Transtech Engineers, Inc. of Oceanside, California, in 1996, culminating in a Project Study Report (PSR). Design and construction of the Coastal Rail Trail will occur in phases, with the first phase scheduled for 1999. Completion of the entire alignment is subject to funding availability, resolution of environmental issues, and public access agreements. This biological technical report presents the results of biological surveys and an analysis of potential impacts from.the Coastal Rail Trail project along the San Diego Northern Railway (SDNR) right-of-way. This report is based on a review of existing environmental documentation, general field surveys, and focused surveys for special status species. The purpose of this effort is to assess the biological resources along the proposed pathway(s), assess impacts, and develop mitigations for potential impacts. The entire 44-mile railway corridor was surveyed from Oceanside to San Diego. Preliminary analysis of the corridor was conducted and potential alternatives were explored by walking along the right-of-way, reviewing available mapping, and aerial photographs. The alignment was divided into 11 distinct project segments for closer evaluation. These segments are described below. wjBai630003.bio 4 Introduction San Diego Coastal Rail Trail Biological Technical Report II. PROJECT DESCRIPTION The Coastal Rail Trail is a proposed multi-use pathway to be located within the San Diego Northern Railway right-of-way. The trail will traverse from the San Luis Rey River in Oceanside to the Santa Fe Depot in downtown San Diego, connecting light rail stations with a paved Class I bikeway for non-motorized users. The project is located within the jurisdictions of six coastal cities in San Diego County: Oceanside, Carlsbad, Del Mar, Encinitas, Solana Beach, and San Diego. The San, Diego North County Transit Development Board (SDNCTDB), the Metropolitan Transit Development Board (MTDB), San Diego Association of Governments (SANBAG), California Department of Transportation (Caltrans) and MCAS Miramar are also participating in development of the trail. The Coastal Rail Trail is intended to be a Class I bikeway-constructed 12 ' wide, with 2' shoulders on each side. It will be primarily located along the coastline, following along the old AT&SF railroad right-of-way, now owned by SDNR. As shown in Exhibit 1, the railroad follows the coastline for much of its 44-mile length. Portions of the SDNR rail and right-of-way continue to be heavily used by the public (pedestrians, bicyclists, and others) for recreational use. Most of this use is unauthorized by SDNR.' The following section describes each of these 11 segments of the Coast Rail Trail, as summarized in Table 1. Se Segment 1 2 3 4 5 6 7 8 9 10 11 City Oceanside Carlsbad Carlsbad Encinitas Encinitas Solana Beach Del Mar San Diego San Diego San Diego San Diego: , Table!, grnents of the Coastal Rail Trail Start Point San Luis Rey Bicycle Trail Buena Vista Lagoon Agua Hedionda Lagoon Batiquitos Lagoon Encinitas Transit Station San Elijo Lagoon ViadelaValle Carrriel Valley^Road Genesee Avenue , Balboa Avenue Old Town Transit Station End Point Buena Vista Lagoon Agua Hedionda Lagoon Batiquitos Lagoon Encinitas Transit Station San Elijo Lagoon ViadelaValle Carmel Vallev Road Genesee Avenue Balboa Avenue Old Town Transit Station Santa Fe Depot Segment 1: City of Oceanside, San Luis Rey Bicycle Trail to Buena Vista Lagoon The Coastal Rail Trail begins at the northern end of the City of Oceanside. The trail connects to the San Luis Rey River Bicycle Path on the eastern side of the tracks (see Exhibit 2). The rail trail proceeds south along the east side of the right-of-way, the trail heads easterly on Neptune Way to Cleveland Street. At Cleveland Street, the trail crosses over Surfrider Way, Sportfisher Way, Civic Center Drive, Pier View Way; and Mission Avenue. At Seagaze Way, the trail traverses easterly to Tremont Street around the Oceanside Transit Station. Trail users, who have the transit station as a destination point, would proceed to the transit station. Others would proceed past the transit station to Michigan Avenue. At Michigan Avenue, the trail proceeds westerly accessing the western side of the railroad right-of-way. i i WJB/21630003.bio Project [Description San • Marco San Luis Rey River \£iVista Carlsbad CteeansW® >n\Village Station Transit-' -Center •\ ^~. r •$ Carlsbad insettia Station stoI__J Encinitas Rancho Santa Solana Beach^->so Solana Beach Station Delfifiar Sorrento Valley Station ml°rrentoVaIIey Mission Beach Old Town Transit Center , Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. Alichacl Brandman Associates Exhibit 1 Proposed Coastal Rail Trail Route 21630003'2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Marco San Luis Rev River 1S"Vista Carlsbad insettia Station Hndnttas Station Santa Solaria Beach se Soiana Beach Station Dei Mar Sorrento ValleySorrento Valley Station Linda ss VistaMission Beach Old Town Transt Center Point Loma Santa Fe Depot San Diego > Source: Transtech Engineering, Inc. 1 ULHOIILJI z!_JLJ Michael Brandiran Associates 21630003° 2/99 Exhibit 2 Segment # 1 San Luis Rey Trail to Buena Vista Lagoon COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Diego Coastal Rail Trail Biological Technical Report The trail follows the western alignment of the right-of-way crossing Wisconsin Avenue to Oceanside Boulevard. The trail proceeds west two blocks to Pacific Street utilizing a Class in bicycle route to Buccaneer Beach Park. At Buccaneer Beach Park the trail connects to an existing pedestrian path, which traverses along the north side of the park and proceeds under the railway trestle. The trail proceeds south to Eaton Avenue where the trail uses the street and proceeds easterly to the Coast Highway. At Coast Highway, bicyclists will utilize the existing bicycle lanes along the edge of the Buena Vista Lagoon. Northbound cyclists cross the Coast Highway at Vista Way and proceed westerly to the Class I bicycle path along the railroad right-of-way. Segment 2: City of Carlsbad, Buena Vista Lagoon to Agua Hedionda Lagoon The trail enters the City of Carlsbad on Coast Boulevard (Hwy 101) bicycle lanes across the Buena Vista Lagoon. Southbound users proceed south along the western edge of Coast Highway on Class II bicycle lanes and northbound users would utilize State Street from the Carlsbad Village Station to the Class II bicycle lanes at Coast Highway. (Exhibits) Once across the lagoon, 'the southbound trail accesses the right-of-way at the proposed extension of Maxton Brown Park. The extension is a pan of an overall lagoon and beach access node proposed by the City of Carlsbad. The trail proceeds south of the Maxton Brown Park extension to the eastern edge of the railway under the bridge at Carlsbad Boulevard to the Carlsbad Village Station. The trail utilizes existing streets passing the Transit Station and the old historic Carlsbad train station. The trail accesses the eastern side of the railroad right-of-way at Oak Avenue and continues south to the Agua Hedionda Lagoon. Segment 3: City of Carlsbad, Agua Hedionda Lagoon to Batiquitos Lagoon The Coastal Rail Trail proceeds south along the east side of the railroad right-of-way across the Agua Hedionda Lagoon on a bridge spanning the lagoon above the existing sewer bridge. It proceeds past the San Diego Gas and Electric facility (Exhibit 4). The trail continues as a Class I trail along the easterly side of the right-of-way and proceeds south to the Carlsbad Poinsettia Station crossing Cannon Road and crossing under Palomar Airport Road. On the western side of the railroad, extending south of Cannon Road is the planned Cannon Lake Park. This park will provide an opportunity to link the rail trail to industrial employment centers along Cannon and Palomar Airport Roads. Trail users may directly access the Carlsbad Poinsettia Station. Due to biological assessments, which indicate potential vernal pools along the railroad south of the station, the trail is routed on surface streets along Poinsettia to Avenida Encinas to the Carlsbad Boulevard. At the Carlsbad Boulevard, the Coastal Rail Trail proceeds south on Class II bicycle lanes across the Batiquitos Lagoon, while providing access to south Carlsbad State Beach and Campground. wjB/2i630003.bio 6 Project Description San Marco San Luis Rey River \?I1 Carlsbad Village Station ,-"-»Sit Oceanside -••- Trarailt ~~ Center Carlsbad insettia Station \810,\_j Encinitas Endnitas Station Rancho Santa Solana Beach Solana Beach Station Sorrento valleySorrento Valley Station Linda ss VistaMission Beach Old Town Transit Center Point Loma Santa Fe Depot • San Diego Source: Transtech Engineering, Inc. NOchael Brandmari Associates 21630003-2/99 Exhibit3 Segment # 2 Buena Vista Lagoon to Cannon Road COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT .,,„..,_ -~v*. Oceanside _ (d Oceanside Transit Center '- ,»- - _ ' ^i ^-. =« Cerisbad San Marco Encinltas Station San Luis Rev River Carlsbad - Village Station^•*>511 Carlsbad . insettia Station 810!__> Encinitas Rancho Santa Solana Beach Solana Beach .Station Del Mar Sorrento Valley Station LaJotla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. iUU Michael Brandman Associates Exhibit 4 Segment # 3 Cannon Road to Batiquitos Lagoon 21630003*2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Diego Coastal Rail Trail Biological Technical Report Segment 4: City of Encinitas, Batiquitos Lagoon to the Encinitas Transit Station The Coastal Rail Trail crosses the Batiquitos Lagoon and enters the Leucadia community of the City of Eneinitas on existing Class n bike lanes located on North Coast Highway 101 (see Exhibit 5). The trail would then proceed south along the west side of the railroad right-of-way to the three-way signed intersection of Marcheta Street/Orpheus Avenue and North Coast Highway 101 At Marcheta Street/Orpheus Avenue, the trail crosses over to the east side of the railroad right-of-way. Once on the east side of the railroad right-of-way, the trail proceeds south to the intersection of Encinitas Boulevard and Vulcan Avenue. Segment 5: City of Encinitas, Encinitas Transit Station to San Eiijo Lagoon South of the Encinitas Transit Station at E Street, the Coastal Rail Trail enters the east side of the railroad right- of-way and proceeds south through Downtown Old Encinitas and Cadiff-by-the-Sea to Chesterfield Drive as a Class I bike path (Exhibit 6). At the signalized intersection of Chesterfield Drive and San Elijo Avenue, the trail crosses the railroad tracks and joins the existing Class II bike lanes on South Coast Highway 101 and proceeds south across the San Elijo Lagoon to the southern Encinitas city limit. Segment 6: City of Solana Beach, San Eiijo Lagoon to Via de la Valle The rail trail enters Solana Beach on bike lanes south of San Elijo Lagoon along South Coast Highway 101. Southbound trail users cross Highway 101 at Solana Vista Drive to access the rail trail (See Exhibit 7). Northbound trail users would connect to the Class n bicycle lanes just south of the San Elijo lagoon. There is sufficient room for the rail trail between the tracks and Highway 101 for the entire distance through the City of Solana Beach. A well-used dirt trail currently exists on the west side of the tracks. The trail proceeds across Lomas Santa Fe at the intersection. The rail trail diverts from the tracks at the south end of the city at the Via de la Valle intersection and proceeds south towards the City of Del Mar on existing Class II bicycle lanes on Camino Del Mar. Segment 7: City of Del Mar, Via de la Valle to Carmel Valley Road The rail trail ends at the Via de la Valle intersection and proceeds south through the City of Del Mar along Camino del Mar on Class II bikelanes (see Exhibit 8). The pedestrian trail proceeds along the railroad right-of-way at Power House Park, using the western side of the right-of-way. At the southern limits of Del Mar, the trail goes under the railroad, connecting with an existing paved path that connects to the parking lot at the Torrey Pines Preserve. The bicyclists continue south along Camino del Mar through the retail district of Del Mar, using existing Class II bikelanes. Segment 8: City of San Diego, Carmel Valley Road to Genesee Avenue At Carmel Valley Road, bicyclists would utilize the bicycle lanes currently in the design phase by the City of San Diego. The City of San Diego is proposing a pedestrian trail along the south side of Carmel Valley Road (see wJB/2i630oo3.bio 7 Project Description San Marco San Luis Rey River Vista Carlsbad Village Station Carlsbad oinsettia Station S10I—I Encinitas EnclnitasStation Rancho Santa Solana Beach Sorrento Valley Station bK0™'0 Va"ey Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. LJLJ Michael Branciman Assodatcs 21630003*2/99 Exhibit 5 Segment # 4 Batiquitos Lagoon to Encinitas Coaster Station COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Luis Rey River \814/ Vista Carlsbad Village Station.^xBit ^'^'^TT 'fug? ^ "Carlsbad insettia Station 310 Encinftas Encinitas Station Rancho Santa Solana Beach se Sorrento Valley Solana Beach Station Del Mar Sorrento Valley Station C La Jolla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. .SSSS . - Exhibit 6 Segment # 5 Encinitas Coaster Station to San Eli jo Lagoon 21630003*2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT Oceanslde Transit "Center San Marco San Luis Rey River """Vista Carlsbad Village Stations~*Sli Carlsbad -••-..: insettia Station Enelnlta© Station Rancho Santa Solana Beach Soiana Beach Station Sorrento Valley Station ^Sorrento Vaney Mission Beach , Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. i'ui Michael Brandman Assodates Exhibit 7 Segment # 6 Solana Beach 21630003'2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Marco San Luis Rey River 18M Vista Carlsbad Village Station oinsettia Station Rancho Santa Solana Beach Solana Beach Station '-'.:/ 'T^VV Dei Ma Sorrento valleySorrento Valley Station:,~&~->- - Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. ci Michael Brandman Assodates Exhibit 8 Segment # 7 City of Del Mar 21630003*2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT Diego Coastal Rail Trail Biological Technical Report Exhibit 9) as part of the Carmel Valley Road street improvement project. The pedestrian trail from the City of Del Mar would follow under the railroad and then continue to Carmel Valley Road. At Sorrento Valley Road, both cyclists and pedestrians would utilize a Class I bicycle path. Just past Carmel Mountain Road, the trail would access the railroad right-of-way and proceed behind the industrial area. The rail trail will pass along the Sorrento Valley Transit Station on Sorrento Valley Road at 1-5 and then access the railway right-of-way at the eastern edge. The rail trail follows the railroad, along the existing SDNR service road. The trail crosses under Miramar Road where and enters MCAS Miramar open space. Through this open space area, the trail follows the existing dirt access road located approximately 25 feet from the railroad. The trail remains on the east side of the nght-of-way across MCAS Miramar to 1-805. At 1-805, the trail crosses the railroad on a separate overcrossing to the north side of the railway. The south side of the railroad is Rose Canyon Open Space Park, a protected natural area that contains sensitive habitats such as Oak Woodland and riparian areas. The trail utilizes existing dirt trails on the north side of the railroad. At Genesee, the trail goes under the road following the railroad. Segment 9: City of San Diego, Genesee Avenue to Balboa Avenue The rail trail proceeds under Genesee Avenue, providing access to existing Class II bicycle lanes on Genesee Avenue and access to the high school located at the southeast comer of the Genesee overcrossing (see Exhibit 10). The rail trail will connect to the future Nobel Drive Trolley Station. The rail trail proceeds westerly, at Oilman Drive it connects to an existing paved rail trail. Once past Santa Fe Avenue, the trail accesses the western side of the alignment and proceeds south. The trail proceeds south along the west side of the railroad, slowly progressing above the roadway to Balboa Avenue. Segment 10: City of San Diego, Balboa Avenue to the Old Town Transit Station This segment begins at a new bridge over Balboa Avenue (see Exhibit 11). Between Balboa Avenue and Clairemont Drive, the trail will be located on the west side of the tracks paralleling Morena Boulevard. The trail will divert to the east above Friars Road to Pacific Coast Highway Class II bicycle lanes. Segment 11: City of San Diego, Old Town Transit Station to the Santa Fe Depot The Coastal Rail Trail continues along Pacific Coast Highway utilizing the existing Class II bicycle lanes and terminate on the south end at the Santa Fe Depot in downtown San Diego (see Exhibit 12). WJB/2i630oo3.bio 8 Project Description Oceanside Transit Center San Marco Encinitas Station San Luis Rey River _ ' "a>4 Carlsbad Village Station~ Carlsbad oinsettia Station S10—I Encinitas Santa Solana Beach s« Sorrento Valley Linda ss Vista Solana Beach Station Del Mar Sorrento Valley Station LaJolla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. Michael Brandmin Associates 21630003-2/99 Exhibit 9 Segment # 8 Del Mar Gity Limits to Genesee Avenue COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT _ • ,. v x CarlsbadOeeanslde V\Village StationTransit ^x Center San Marco Source: Transtech Engineering, Inc. San Luis Rey River 1S" Carlsbad oinsettia Station Rancho Santa Solana Beach Solana Beach Station Dei Mar Sorrento Valley Station bNfren'° ™^ La Jolla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Michael Brandrmn Associates Exhibit 10 Segment # 9 Genesee Avenue to Balboa Avenue 21630003? 2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT Oceanslde ^Transit 7 Center Encinitas Station San Luis Rey River 1S" Vista Carlsbad Village Station^^Sll Carlsbad insettia Station S10 Encinitas Santa Solana Beach 55 Sorrento Valley Solana Beach Station Del Mar Sorrento Valley Station LaJolla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. Exhibit 11 Segment #10 Balboa Avenue to Old Town Transit Station 21630003*2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT CarlsbadOceanslde >Q\Village Station Transit Center San Marco Encinttas Station San Luis Rey River vs"Vista Carlsbad insettia Station Santa Solana Beach sc Solana Beach Station Del Mar Sorrento Valley Station \jNSormritoVMey LaJolla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Source: Transtech Engineering, Inc. * J iUU Michael Brandman Associates 21630003*2/99 Exhibit 12 Segment #11 Old Town Transit Station to Santa Fe Depot COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Diego Coastal Rail Trail Biological Technical Report III. Methodology Biological resources of the Coastal rail trail were determined through literature review, general biological surveys, and focused surveys for special status species. Literature review The literature review included a review of existing biological resource information for projects that encompass the proposed Coastal Rail Trail corridor. A total of 11 EIRs and technical documents were reviewed. In addition to reviewing reports, biological data from the Multiple Habitat Conservation Program and the Multiple Species Conservation Program were reviewed. Aerial photographs of the entire corridor route were also reviewed. Existing environmental documents reviewed included; Oceanside-San Diego Commuter Rail Project Environmental Impact Report (Coaster EIR) Alternatives Analysis/Draft Environmental Impact Statement/Environmental Impact Report for the Midcoast Corridor Final and Draft EIR for the Lomas Santa Fe Drive Grade Separation project. Batiquitos Lagoon Enhancement Project Final EIR/EIS Technical Appendices for the Draft EIR for the proposed North City Water Reclamation Plant Rose Canyon Trunk Sewer Interceptor Line EIR Nobel Drive and 1-805 Interchange and Extension Project Draft EIR/EIS Draft EIR for Oceanside-San Diego Commuter Rail Project Realignment of Miramar NAS DEIR/DEIS Downtown Encinitas/North 101 Corridor Specific Plan Draft Supplemental EIR Final EIR for San Dieguito River Park Concept Plan Other pertinent information reviewed included: (1) the Federal Register listing package for each federally listed endangered or threatened species potentially occurring in the corridor; (2) literature pertaining to habitat requirements of special status species potentially occurring in the corridor; (3) the CDFG Annual Report on the status of California's listed threatened and endangered plants and animals; (4) California Natural Diversity Data Base (CNDDB) (RareFind2) information regarding special status species potentially occurring in the corridor; and (5) the CDFG's Wildlife Habitat Relationships System for specific information on habitats occurring in the corridor. General Surveys General field surveys of the entire route of the proposed San Diego CoastalRail Trail were conducted by vehicle in mid-April, 1997 by MBA personnel Tom Leslie, Gregg Miller and Claude Edwards. Selected portions of the alignment were observed on foot. A general assessment of the existing conditions and habitats along the route was conducted and a list of common plant and animal species in each habitat developed Selected sections of the Rail Trail alignment were marked on aerial maps of the route for subsequent focused biological surveys. This was based on the presence of protected habitats or habitats that could support special status species. wJB/2i63ooo3.bio 9 Methodology _ .SanDiego-CoastaLRail TrailJhological Technical Report Focused Surveys Focused surveys were conducted at 15 sites that were identified during the literature review and general surveys as biologically sensitive and where special status species could occur. Focused surveys were conducted for special status plant and animal species that were identified as potentially occurring in the habitats at the selected sites. The focused survey sites are listed from north to south along the alignment in Table 2. The locations of the focused survey sites are briefly described below along with the reasons for selecting the sites. Exhibit 13 shows the location for each of focused surveys sites. The focused survey sites were visited, and focused surveys were conducted between early May and late-June, 1997. The purpose of the focused surveys was to determine the presence or absence of special status species and protected habitats, and to identify potential negative impacts to those resources that could result from development and operation of the Coastal Rail Trail. All surveys were conducted on foot by MBA biologist Claude Edwards. The dates and hours of the surveys, as well as weather conditions, are shown in Table 2. Native habitat type, plant, and animal species observed in each focused survey site were documented on alignment maps in the field. Plant communities were categorized based on Holland's classification system (Holland 1986). WJB/21630003.bio 10 Methodology Oceanside Transit "'"..- Center San Marco Source: Transtech Engineering, Inc. Michael Brandman Associates Encinttas Station San Luis Rey River Oceanside Carlsbad Village Station Carlsbad insettia Station Rancho Santa Solana Beach Solana Beach Station Dei Mar Sorrento Valley StationTbNL°rrento Va"ey La Jolla Mission Beach Old Town Transit Center Point Loma Santa Fe Depot San Diego Exhibit 13 Locations of Focused Biological Surveys 21630003*2/99 COASTAL RAIL TRAIL • BIOLOGICAL TECHNICAL REPORT San Diego Coastal Rail Trail Biological Technical Report Table 2 Focused Biological Survey Locations and Survey Dates Site No. 1 1 2 2 3 3 4 5 6 7 8 Location South side of the San Luis Rey River mouth South side of the San Luis Rey River mouth Buccaneer Beach Park Buccaneer Beach Park Buena Vista Lagoon Buena Vista Lagoon West end of Penasquitos Slough Penasquitos Slough east side along Sorrento Valley Road Penasquitos Creek along Roselle Street Carroll Canyon Creek west of 805 overpass Carroll Canyon Creek east of 805 overpass City Oceanside Oceanside Oceanside Oceanside Oceanside & Carlsbad Oceanside & Carlsbad Del Mar & San Diego San Diego San Diego San Diego San Diego Segment 1 1 1 1 1 1 8 8 8 8 8 Survey Dates APR 29 JUN 10 APR 29 JUN 10 APR 29 JUN 10 JUN 2 JUN 2 JUN 2 JUN 2 JUN 1 7 Survey Hours 0900 to 1630 0900 to 1230 0900 to 1630 0900 to 1230 0900 to 1630 0900 to 1230 0630 to 1130 0630 to 1130 0630 to 1130 0630 to 1130 0700 to 1130 Field Conditions During Surveys Overcast, clearing to sunny; variable light to moderate breezes; 70 to 76F. Overcast, clearing to hazy-sun; moderate W breezes; 68 to 76F. Overcast, clearing to sunny; variable light to moderate breezes; 70 to 76F. Overcast, clearing to hazy-sun; moderate W breezes; 68 to 76F. Overcast, clearing to sunny; variable light to moderate breezes; 70 to 76F. Overcast, clearing to hazy-sun; moderate W breezes; 68 to 76F. ' Overcast, later becoming sunny; calm to moderate westerly breezes; 66 to 78F. Overcast, later becoming sunny; calm to moderate westerly breezes; 66 to 78F. ! Overcast, later becoming sunny; calm ; to moderate westerly breezes; 66 to! 78F. Overcast, later becoming sunny; calm to moderate westerly Breezes; 66 to 78F. Hazy-overcast; light breezes; 66 to 74F. WJB/21630003 bio 11 Methodology San Diego Coastal Rail Trail Biological Technical Report 9 9 10 11 12 13 14 15 SDNR Right-of-way between 805 and Miramar Road SDNR Right-of-way between 805 and Miramar Road SDNR Right-of-way between Miramar Road and 805 Original Trail between 805 and Genesee SDNR Right-of-way between 805 and Genesse Original Trail between Genesee and Oilman North side of SDNR Right-of-way between Genesee and Oilman Original Trail between Oilman and I-5/SR-52 Junction San Diego San Diego San Diego San Diego San Diego San Diego San Diego San Diego 8 8 8 8 8 9 9 9 JUN 17 JUN24 JUN 24 MAY 3 MAY 3 MAY 1 MAY1 MAY! 0700 to 1130 0615 to 0930 0615 to 0930 1400 to 1800 1400 to 1800 0800 to 1430 0800 to 1430 0800 to 1430 Hazy-overcast; light breezes; 66 to 74F. Mostly cloudy, clearing to hazy-sun; variable light breezes; 66 to 76F. Mostly cloudy, clearing to hazy-sun; variable light breezes; 66-to;76F. Hazy-sun; moderate W breezes; 80F. Hazy-sun; moderate W breezes; 80F. I Mostly cloudy, clearing to hazy-sun; variable light to moderate breezes; 70 to 76F. Mostly cloudy, clearing to hazy-sun; variable light to moderate breezes; 70 to76F. Mostly cloudy, clearing to hazy-sun; variable light to moderate breezes; 70 to76F. WJB/2163b003.bio 12 Methodology San-Diego Coastal Rail Trail-Biological Technical Report Focused Survey Site 1 - South side of the San Luis Rey River mouth This site is at the northern terminus of the proposed trail at the San Luis Rey River. The site is situated in an already disturbed suburban environment along the alignment where the alignment connects to an existing bike trail system proceeding eastward along the San Luis Rey River. The literature review found California gnatcatcher, Pacific pocket mouse, and Belding's savannah sparrow occurring in coastal sage scrub habitat in the vicinity. The general biological surveys identified disturbed sage scrub habitat along the corridor. Focused Survey Site 2 - Buccaneer Beach Park This site is located where the rail trail route passes through the side of Buccaneer Beach Park, a community park along Loma Alta Creek. The general biological surveys identified potential indirect impacts to wetland vegetation associated with the creek. Further, there may be potential jurisdictional (Corps of Engineers) issues with an intermittent tributary creek north of the train tracks that has some salt marsh vegetation. Focused Survey Site 3 - Buena Vista Lagoon This site is located along the edge of Buena Vista Lagoon where the alignment passes through a disturbed area between a suburban environment and the edge of the lagoon. The Buena Vista Lagoon Ecological Reserve contains 196 acres of coastal freshwater lagoon habitat Based on the literature review, there is potential for the following special status species to occur in the vicinity of the alignment, particularly along the lagoon: least Bell's vireo, light-footed clapper rail, California red-legged frog, and tidewater goby. The general biological surveys identified potential indirect impacts to wetland habitat associated with Buena Vista Lagoon. :, Focused Survey Site 4 - Penasquitos Slough-west end This site is located on the originally proposed alignment along the southern edge of a public parking lot. The site is located adjacent to coastal sage scrub and tidal salt marsh habitats. During general surveys California gnatcatchers were observed in the coastal sage scrub habitat adjacent to the trail. The literature review identified California least tern, light-footed clapper rail, and Belding's savannah sparrow as potentially occurring in the salt marsh vegetation. Focused Survey Site 5 - Penasquitos Slough-eastside along Sorrento Valley Road. Site 5 is located along the disturbed western edge of Sorrento Valley Road adjacent to the eastern edge of the extensive tidal salt marsh habitat of the Penasquitos Slough. General biological surveys identified the salt marsh area as sensitive. Focused Survey Site 6 - Penasquitos Creek in the vicinity of Roselle Street Site 6 lies west of Roselle Street and south of the 1-5 and 1-805 interchange. Site 6.is parallel to and east of an extensive riparian area that is within the SDNR right-of-way. General biological surveys identified the riparian area as a sensitive habitat. WJB/2i630oo3.bio 13 Methodology San Diego Coastal Rail Trail Biological-Technical Report Focused Survey Site 7 - Carroll Canyon Creek-west of 805 overpass Site 7 is located along and within Carroll Canyon Creek west of the 1-805 freeway on the originally proposed alignment. General biological surveys found that the original trail alignment ran through riparian woodland, riparian scrub, and flowing water associated with Carroll Canyon Creek. The literature review indicated that the area is within a major migration and movement corridor for birds and other wildlife. Focused Survey Site 8 - Carroll Canyon Creek-east of 805 overpass Site 8 parallels Carroll Canyon Creek east of the 1-805 freeway. General surveys showed that the site bordered riparian woodland habitat. Focused Survey Site 9 - SDNR Right-of-way between 805 and Miramar Road This site follows the existing train tracks within the existing right-of-way General surveys found the alignment runs through coastal sage scrub habitat and potentially contained California gnatcatchers. Focused Survey Site 10 - SDNR Right-of-way between Miramar Road and 805 This survey site parallels the train tracks and runs through coastal sage scrub habitat. Literature review and general surveys both indicated the potential for California gnatcatchers in the coastal sage scrub habitat. Focused Survey Site 11 - Original Trail between 805 and Genesee Avenue Site 11 lies along the originally proposed alignment on the south side of SDNR right-of-way, west of I 805 to Genesse Avenue. The general surveys found that the site is along and within the Rose Creek streambed, and is adjacent to chaparral and oak habitats bordering Rose Creek. Focused Survey Site 12 - SDNR Right-of-way between 805 and Genesee Avenue Site 12 is along the new route chosen for the alignment between 805 and Genesee Avenue. The site and the new alignment lie on the north side of SDNR right-of-way. The literature review revealed that the site is near a known active California gnatcatcher area between Nobel Drive and SDNR's right-of-way approximately 10,000 feet west of Genesee Avenue. The general surveys found that the in this area vegetation is successfully replanted coastal sage scrub, with the potential for use by gnatcatchers. Focused Survey Site 13 - Original Trail between Genesse Avenue and Gilman Drive This site is located along the originally proposed alignment west of Genesee Avenue and within Rose Canyon Park. The literature review indicated that the following federal and state-listed species may occur in the vicinity of the site: San Diego button celery, San Diego mesa mint, California gnatcatcher, Holding's savannah sparrow, and San Diego fairy shrimp. The general surveys found that the site is adjacent to chaparral and oak habitats. Focused Survey Site 14 - North Side of SDNR right-of-way between Genesee Avenue and Gilman Drive Site 14 is located on the north side of SDNR's right-of-way between Genesee Avenue and Gilman Drive in the newly proposed alignment. The general surveys found that although the proposed alignment borders a narrow band of disturbed habitat located just south of several suburban developments, the area supports a mixture of habitats, including native vegetation, as well as extensive patches of exotic plants. The general surveys also found several drainage channels and areas that support wetland vegetation. wjB/ii630oo3.bio . 14 Methodology San Diego Coastal Rail Trail Biological Technical Report Focused Survey Site 15 - Original Trail between Gilman Drive to I-15/SR-52 Junction. This site lies along the originally proposed alignment between Oilman Drive and the I-15/SR-52 Junction, within Rose Creek Park, south of the SDNR right-of-way. General surveys found that the originally proposed alignment crosses Rose Creek and tributary drainages from the south and that habitats in this area contain some patches of coastal sage scrub vegetation, riparian scrub and riparian woodland. WJB/21630003.bio 15 Methodology -San Dieeo Coastal RaiLTrail Biological. Technical Report IV. RESULTS AND CONCLUSIONS Literature Review The literature review found information concerning the general biological setting of the proposed alignments, habitats in the area, and the known occurrence of special status species. Information in the literature indicated that much of the corridor route was developed, but that numerous areas of vegetation occur along the route. The vegetation varies from disturbed stands of non-native vegetation to relatively undisturbed areas of native vegetation. Native habitats reported to occur include coastal sage scrub, coastal bluff scrub, maritime succulent scrub, chaparral, oak woodland, grasslands, freshwater marsh, wetlands, brackish wetlands, and southern coastal salt marsh. The literature review also showed the known occurrence of numerous special status species in the area of the proposed corridor. These are shown in Tables 3 and 4. TABLE 3 SPECIAL STATUS PLANT SPECIES WITH POTENTIAL TO OCCUR ALONG THE COASTAL RAIL TRAIL Species Scientific Name Acanthomintha ilicifolia Adolphia California Arctostaphylos glandulose ssp crassifolia Artemisia palmeri Astragalus tenner var titi Baccharis vanessae Ferocactus viridescens Chohzanthe orcuttiana Coreopsis maritima Corethrogyne filaginifolia var incana Common Name San Diego thorn- mint California adolphia Del Mar manzanita San Diego sagewort Coastal dunes milk-vetch Encinitas bacchans San Diego barrel cactus (velvet) Orcutt's spineflower Sea dahlia San Diego sand aster Status DSFW S PE — FE ~ FE FT FSC FE — ~" CDF G CE -- ~ CE CE -- CE — — CNP S IB 2 IB 2 IB IB 2 IB 2 IB Preferred Habitat coastal scrub, chaparral, grasslands and vernal pools coastal scrub, chaparral, and grassland chaparral chaparral coastal bluff scrub and coastal dunes chaparral coastal scrub, grassland and chaparral coastal scrub and chaparral coastal scrub and coastal bluff scrub coastal scrub, coastal bluff scrub and chaparral WJB/21630003.bio 16 Results and Conclusions San Diego Coastal Rail Trail Biological TechnicaLReport Species Scientific Name Corethrogyne fllaginifolia var linifolia Dudleya blochmaniae ssp brevi folia Dudleya viscida Eryngium aristulatum \arparishii Euphorbia misera Monardella linoides ssp viminea Nemacaulis denudata var gracilis Pogogyne abramsii Pogogyne nudiuscula Common Name Del Mar Mesa sand aster Short-leaved dudJeya Sticky dudleya San Diego button celery Cliff spurge Willowy monardella Slender woolly- heads San Diego mesa mint Otav Mesa mint Status tJSFW S FSC FSC FSC FE ~ FPE ~ FE FE CDF G -- ~ ~ CE — CE — CE CE CNP 5 IB IB IB IB 2 IB 2 IB IB Preferred Habitat coastal scrub and chaparral coastal scrub and chaparral coastal scrub, coastal bluff scrub and chaparral coastal scrub, grasslands and vernal pools coastal scrub and coastal bluff scrub riparian scrub coastal dunes vernal pools vernal pools / • U.S. Fish and Wildlife Service FE Federal Endangered FT Federal Threatened PE Proposed Endangered PT Proposed Threatened FC Federal Candidate FSC Species of Concern California Department of Fish and Game CE California Endangered CT California Threatened CR California Rare California Native Plant Society 1A Plants presumed extinct in California. 1 B Plants rare, threatened, or endangered in California and elsewhere. 2 Plants rare, threatened, or endangered in California, but more common elsewhere. 3 Plants about which we need more information. 4 Plants of limited distribution. WJB/21630003.bio 17 Results and Conclusions San Diego Coastal Rail Trail Biological Technical Report TABLE 4 SPECIAL STATUS ANIMAL SPECIES WITH POTENTIAL TO OCCUR ALONG THE COASTAL RAIL TRAIL Scientific Name Common Name Status USFWS | OW Habitat Invertebrates Streptocephalus woottoni Branchinecta sandiegonensis Branchinecta lynchi Rana aurora draytonii Riverside fairy shrimp San Diego fairy shrimp vernal pool fairy shrimp California red-legged frog FE FE FT FT — ~ CSC tectonic swales/ earth slump basins, grasslands, and coastal sage scrub vernal pools rain filled pools of grasslands quiet pools of streams and marshes Reptiles Cnemidophorus hyperythrns beldingi Clemmys marmorata pallida Beldings orange-throated whiptail Western pond turtle FSC FSC ssc ssc low elevation coastal scrub, chaparral, valleys and foothills Permanent bodies of fresh water, requires basking sites and nearby upland nesting sites Fish Eitcyclogobius newberryi tidewater goby FE ssc brackish waters Birds Accipiter cooperi Accipiter striatus Cooper's hawk Sharp-shinned hawk ... - ssc ssc riparian and woodland riparian WJB/2l630003.bio 18 Results and Conculsions San Diego Coastal Rail Trail Biological Technical Report Scientific Name Aquila chrysaetos Ardea herodias Athene cunicularia Campylorhynchus brunneicapillus couesi Charadrins alexandrinus nivosus Circus cyaneus Dendroica petechia brewsteri Elanus leucurus l-'alco peregrinus anatum Icteria virens Nycticorax nycticorax i'asserculus sandwichensis bcldingi I'elecanus occidentalis californicus Phalacrocorax auritus Polioptila californica Common Name Golden eagle Great blue heron Burrowing owl Coastal cactus wren Western snowy plover Northern harrier Yellow warbler White-tailed kite American peregrine falcon Yellow-breasted chat Black-crowned night heron Belding's savannah sparrow California brown pelican Double-crested cormorant California gnatcatcher Status USFWS — FSC — FT — - — FE -- — FSC FE FT CDFG ssc s ssc ssc ssc ssc ssc FP CE,FP SSC — CE CE, FP SSC SSC Habitat rolling foothills and coastal-range terrain with scattered oaks or sycamores nests in tall tress and on cliff sides in marshes grasslands, and desert scrublands coastal sage scrub nests on sandy beaches and shores salt and freshwater marshes, grasslands riparian foothills, valleys, river bottoms and marshes woodlands, riparian and wetlands riparian trees and tulle patches in marshes coastal salt marshes nests jn coastal islands just outside surf line coastal cliffs and off-shore islands coastal sage scrub below 2500 ft. in arid washes, mesas, and slopes WJB/21630003 bio 19 Results and Conculsionx San Diego Coastal Rail Trail Biological Technical Report Scientific Name Rallus longirostris levipes Sterna antillarum browni Vireo bellii pusillus Common Name Light-footed clapper rail California least tern Least Bell's vireo Status USFWS FE FE FE CDFG CE,FP CE, FP CE Habitat saltmarshes with tidal sloughs nests on sparsely vegetated flat substrates summer resident in low riparian growth Mammals ( Perognathus longimembris paciftcus Pacific pocket mouse FE SSG Coastal plains WJB/21630003 bio 20 Results and Conculsions San Diego Coastal Rail Trail Biological Technical Report General Surveys The general surveys of the entire route, found that the majority of the proposed alignment for the coastal rail trail passes through commercial, urban and residential developed areas; or areas of disturbed vegetation within the SDNR right-of-way. Developed areas along the proposed alignment contain small commercial establishments, single- and multi-family residential uses, mixed-use structures, mobile home parks, professional office, public office, and small industrial uses. Commercial areas provide low value habitat for wildlife. They contain little vegetation, and are subject to noise and disturbance from traffic and other human activities. Species found in these areas are tolerant of human activity and are generally very common in the region. The vegetation in the residential areas is generally composed of landscaped plantings with some tall trees, little understory and grass in the herbaceous layer. The vegetation is intensely manicured arid irrigated typical of residential landscapes. Landscape plantings including trees and shrubs provide limited nest and foraging sites for birds, and grass areas such as lawns also provide feeding sites. Species found in residential areas are tolerant of human activity and are generally common in the region. Disturbed vegetation, while containing some native plant species, is generally dominated by non-native species, and is often subject to disturbance and noise from human activities. Disturbance range from ORV use, to dumping of yard waste. The disturbances lower the value of the areas for native wildlife. As result, development of the Coastal Rail Trail is not anticipated to pose a threat to or result in negative impacts to natural habitats or sensitive biological resources over most of its length. Those areas where possible impacts could occur were subject to more detailed focused surveys and are discussed below. Adverse impacts to those few areas identified as sensitive habitats can be mitigated through avoidance. A few areas may represent jurisdiction wetlands and formal delineation surveys should be conducted. Possible impacts to jurisdictional wetlands will require consultation with the Army Corps of Engineers. Appendix A lists all the plant and animal species observed during the course of the general and focused surveys. Focused Surveys The results of the fifteen focused surveys are presented below by specific sections inspected along the Coastal Rail Trail proposed route (see Table 2). Exhibit 13 shows the location of each of these focused surveys. Focused Survey Site 1 - South side of the San Luis Rey River mouth Site 1 is situated in an already disturbed suburban environment along the alignment and connects to an existing bike trail system proceeding eastward along the San Luis Rey River. No special status species were detected or identified at Site 1 during focused surveys. WJB/2i630oo3.bio 21 Results and Conclusions San Diego Coastal Rail Trail Biological Technical Report No impacts to special status plant or animal species or their habitats at Focused Survey Site 1 are expected from development or operation of the proposed Coastal Rail Trail. No impacts to biological resources within the neighboring wetlands associated with the San Luis Rey River or to plants and animals in the vicinity are expected. Focused Survey Site 2 - Buccaneer Beach Park the rail trail route passes through the side of Buccaneer Beach Park, a community park along Loma Alta Creek. The alignment runs along the side of Loma Alta Creek. No special status species were detected or identified at Site 2 during focused surveys. No impacts to special status plant or animal species or their habitats at Focused Survey Site 2 are expected from development or operation of the proposed Coastal Rail Trail. Indirect impacts to Loma Alta Creek could occur from increased human activity along the trail and subsequent entry into the habitats along the creek. Use of design measures such as fences and interpretative signs would minimize potential disturbances. There may also be some potential jurisdictional issues with an intermittent tributary creek north of Loma Alta Creek that contains salt marsh vegetation. Focused Survey Site 3 - Buena Vista Lagoon No special status species were detected or identified at Site 3 during focused surveys. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 3 are expected from development or operation of the proposed Coastal Rail Trail. Although no direct impacts are expected to the wetland habitat associated with Buena Vista Lagoon, the proximity of the alignment could increase human disturbances at the edge of the habitat. Use of design measures such as fences and interpretive signs would minimize potential disturbance of the adjacent habitat. Presently, the Buena Vista Lagoon Reserve is mainly used for passive recreational and educational activities. Focused Survey Site 4 - Penasquitos Slough-west end California gnatcatchers were observed at Site 4 in the coastal sage scrub habitat adjacent to the trail. No other special status species were detected or identified at Site 4 during the focused surveys. The original alignment has been redesigned and now diverts the bicycle traffic and pedestrians away from this area and along the northern side of the parking lot. This eliminates potential impacts to California gnatcatchers, and coastal sage scrub and tidal salt marsh habitats. Focused Survey Site 5 - Penasquitos Slough-eastside along Sorrento Valley Road. No special status species were detected or identified at Site 5 during focused surveys. wJB/2i630003.bio 22 • Results and Conclusions San Diego CoayalRail Trail Biological TechnicaLReport No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 5 are expected from development of the proposed Coastal Rail Trail. There is potential for indirect impacts to the vegetation and wildlife of Penasquitos Slough from increased presence of humans. Use of design measures such as fences and interpretive signs would minimize potential disturbance of the vegetation and wildlife. Focused Survey Site 6 - Penasquitos Creek in the vicinity of Roselle Street No special status species were detected or identified at Site 6 during focused surveys. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 6 are expected from development of the proposed Coastal Rail Trail. There is potential for indirect impacts to the vegetation and wildlife of Penasquitos Slough from increased presence of humans. Use of design measures such as fences and interpretive signs would minimize potential disturbance of the vegetation and wildlife. Focused Survey Site 7 - Carroll Canyon Creek-west of 805 overpass No special status species were detected or identified at Site 7 during focused surveys. The site contains stands of riparian woodland and riparian scrub habitat, and flowing water in Carroll Canyon Creek. The creek and associated wildlife habitat are jurisdictional areas under the regulation of both the U.S: Army Corps of Engineers and the California Department of Fish and Game. Further, the area is within a major migration and movement corridor for birds and other wildlife. The original trail alignment ran through these sensitive habitats. Construction of the original alignment would have resulted in significant direct impacts to these habitats and jurisdictional areas. The alignment has been redesigned and relocated to be in the SDNR right-of-way within an already disturbed area, east of the sensitive areas. Thus, impacts to these areas have been avoided. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 7 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 8 - Carroll Canyon Creek-east of 805 overpass No special status species were detected or identified at Site 8 during focused surveys. The trail parallels Carroll Canyon Creek and borders riparian woodland habitat. Direct and indirect impacts to the creek are expected from development of crossings for bike and pedestrian traffic. These impacts should be short-term and will only occur during the construction phase. wjB/2i63ooo3.bio 23 ResultsandConclusions San Diego Coastal Rail Trail Biological Technical Report Focused Survey Site 9 - SDNR Right-of-way between 805 and Miramar Road Two adult California gnatcatchers were heard and observed at Site 9 in the coastal sage scrub habitat at the bend in the tracks north of Miramar Road. There may be some temporary direct impacts to vegetation bordering the tracks during construction. However, no direct impacts are expected to sensitive species along this portion of the alignment. Any vegetation disturbance should be conducted outside the California gnatcatcher breeding season (February 15 to July 31) to avoid impacts to nesting gnatcatchers. The area should be surveyed by a biologist familiar with California gnatcatchers prior to vegetation removal to verify that breeding is not occurring. Focused Survey Site 10 -, SDNR Right-of-way between Miramar Road and 805 California gnatcatchers were observed in the coastal sage scrub habitat below the train tracks east of 805. Additionally Cooper's hawks were observed foraging and flying in the vicinity of Miramar Road above Site 10 There may be some temporary direct impacts to vegetation bordering the tracks during construction. Direct impacts could occur to California gnatcatchers along this portion of the alignment. Any vegetation disturbance should be conducted outside the California gnatcatcher breeding season (February 15 to July 31) to avoid impacts to nesting gnatcatchers. The area should be surveyed by a biologist familiar with California gnatcatchers prior to vegetation removal to verify that breeding is not occurring. No direct impacts to other special status plant or animal species or their habitats at Focused Survey' Site 10 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 11 - Original Trail between 805 and Genesee Avenue No special status species were detected or identified at Site 11 during focused surveys. The original proposed alignment between the 805 and Genessee Avenue followed the south side of the SDNR right-or-way and entered the Rose Creek streambed. Construction in this area would have resulted in significant impacts to wetland vegetation associated with the streambed, and the surrounding chaparral and oak woodland habitats bordering Rose Creek. This alignment would have also significantly impacted an active wildlife corridor. The alignment has been redesigned and relocated to the north side of the SDNR right-of-way, to avoid adverse impacts to Rose Creek and associated habitats. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 11 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 12 - SDNR Right-of-way between 805 and Genesee Avenue There is an active California gnatcatcher area between Nobel Drive and SDNR's right-of-way approximately 10,000 feet west of Genesee Avenue. This is within replanted coastal sage scrub habitat. wjB/2i630003.bio 24 Results and Conclusions r San Diego Coastal Rail Trail Biological TechnicaLRepon. There may be some temporary direct impacts to vegetation bordering the tracks during construction. Direct impacts could occur to California gnatcatchers along this portion of the alignment. Any vegetation disturbance should be conducted outside the California gnatcatcher breeding season (February 15 to July 31) to avoid impacts to nesting gnatcatchers. The area should be surveyed by a biologist familiar with California gnatcatchers prior to vegetation removal to verify that breeding is not occurring. No direct impacts to other special status plant or animal species or their habitats at Focused Survey Site 12 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 13 - Original Trail between Genesse Avenue and Gilman Drive No special status species were detected or identified at Site 13 during focused surveys. The original trail route west of Genesee Avenue follows well-established public pathways that run within Rose Canyon Park. No additional construction activities are anticipated for this section of the alignment. No impacts are anticipated to the native habitat surrounding this route. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 13 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 14 - North Side of SDNR right-of-way between Genesee Avenue and Gilman Drive No special status species were detected or identified at Site 14 during focused surveys. This alternative alignment to the original route would follow the north side of SDNR's right-of-way between Genesee Avenue and Gilman Drive. SDNR's right-of-way borders a narrow band of disturbed habitat located just south of several suburban developments. This area is laced with several existing dirt bike paths and supports a mixture of habitats, including native vegetation, as well as extensive patches of exotic plants. Within this area are several drainage channels or areas that support wetland vegetation. The most recent alignment of the trail runs through SDNR's right-of-way. The areas supporting wetland vegetation should be evaluated for potential jurisdictional value. Focused Survey Site 15 - Original Trail between Gilman Drive to I-15/SR-52 Junction No special status species were detected or identified at Site 15 during focused surveys. The original trail route between Gilman Drive and the I-15/SR-52 Junction follows well-established public pathways within the Rose Creek Park area, south of SDNR's right-of-way. The alignment crosses Rose Creek and tributary drainages from the south. The habitats in this area consist mostly of non-native grasses and mustard with patches of coastal sage scrub vegetation, riparian scrub and riparian woodland. Construction of the proposed trail along this alignment would require considerable earthwork and would be expected to adversely impact the native habitats found in the area. However, no special status species were observed along the alignment during this focused survey. No adverse impacts to special status species are expected. wjB/2i630003.bio 25 Results and Conclusions San-Diego-Coastal Rail Trail-Biological Technical Report REFERENCES BRW,Inc. 1995. Alternatives Analysis/Draft Environmental Impact Statement/Environmental Impact Report for the Midcoast Corridor. Prepared for U.S. Department of Transportation and Metropolitan Transit Development Board. February. Butler Roach & Associates. 1994. Final and Draft EIR for the Lomas Santa Fe Drive Grade Separation project. Prepared for City of Solana Beach. November. CH2M. 1990. Batiquitos Lagoon Enhancement Project Final EIR/EIS. Prepared for City of Carlsbad and Army Corps of Engineers. June. City of San Diego, Clean Water Program. 1992. Technical Appendices for the Draft EIR for the proposed North City Water Reclamation Plant. September 11. City of San Diego. 1992. Rose Canyon Trunk Sewer Interceptor Line EIR. August. Earth Technologies. 1993. Cultural Resources Report for the Lomas Santa Fe Drive/San Diego Northern Railway Right-of-Way. December. KEA Environmental, Inc. 1996. Nobel Drive and 1-805 Interchange and Extension Project Draft EIR/EIS. Prepared for Federal Highway Administration and California Department of Transportation, District 11. January. Komblatt, Helene B. 1989. Draft EIR for Oceanside-San Diego Commuter Rail Project. Prepared for North San Diego Transit Development Board. September. Ogden Environmental. 1995. Realignment of MiramarNAS DEIR/DEIS. Prepared for U.S. Department of Navy, SWDIV. August. Ogden Environmental. 1992. Downtown Encinitas/North 101 Corridor Specific Plan Draft Supplemental EIR. Prepared for City of Encinitas. November. San Dieguito River Park Joint Powers Authority. 1993. Final EIR for San Dieguito River Park Concept Plan. November 19. WJB/21630003.bio 26 References APPENDIX A Scientific and Common Name Segmenti Segment 2 Segment 3 Segment 4 Segment S Segment 6 Segment 1 Segment $ Segment *Segment 10 Segment 11 GYMNOSPERMS CUPRESSACEAE - CYPRESS FAMILY * Cupressus macrocarpa Monterey cypress * Juniperus chinensis torulosa Hollywood juniper * Platycladus orientalist oriental arborvitae X X X X X X X X PINACEAE - PINE FAMILY Pinus sp. pine * Pinus radiata Monterey pine pinus torreyana Torrey pine X X X X X X ANGIOSPERMS (DICOTYLEDONS) AIZOACEAE - FIG-MARIGOLD FAMILY Aptenria-cordifolia baby sum rose * Carpobrotus chilensis sea-fig * Carpobrotus edulis hottentot-fig * Mesembryanthemum crystallinum crystalline iceplant * Mesembryanthemum nodijlorum slender-leaved iceplant Tetrggonia tetragonioides New Zeland spinach X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X AMARANTHACEAE - AMARANTH FAMILY * Amaranthus albus tumbling pigweed X WJB/2l630003.Plant Revised 2/9/99 Scientific and Common Name Segment 1 Segment * Segment 3 Segment 4 ; Segment S Segment 6 Segment 7 Segment 6 Segment 9 Segment 10 Segment 11 ANACARDIACEAE - SUMAC OR CASHEW FAMILY * Malosma laurina laurel sumac * Rhus integrifolia lemonadeberry Rhus trilobata skunkbrush * Schinus molle Peruvian pepper tree * Schinus terebinthifolins Brazilian pepper tree * Toxicodendron diversilobum poison-oak X X X X X X X X X X X X X X X X X X X X APIACEAE - CARROT FAMILY •* Apium graveolens celery * Conium maculalitm poison hemlock * Foeniculum vulgare fennel X X X X X X X X X APOCYNACEAE - DOGBANE FAMILY * Carissa macrocarpa Natal plum * Nerium oleander oleander X X X X X X X X ARALIACEAE - GINSENG FAMILY * Hedem helix English ivy X ARAUCAUIACEAE *. Araucaria heterophylla Norfolk Island pine X WJB/2l630003.Plant Revised 2/9/99 Scientific aud Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment * Segment 9 Segment 10 Segment 11 ASTERACEAE - SUNFLOWER FAMILY Acourtia microcephala sacapellote Ambrosia psilostachya western ragweed Artemisia californica California sagebrush Artemisia douglasiana mugwort Artemisia draciinculus tarragon Aster subulalus var. ligulatus slender aster Baccharis pilularis coyote brush Baccharis salicifolia mulefat Baccharis sarothroides broom baccharis Bellis perennis English daisy * Carduus pycnocephalus Italian thistle * Centaurea melitensis tocalote * Chamomilla suaveolens pineapple weed Chaenactis glabriuscula yellow pincushion * Chrysanthemum coronarium garland chrysanthemum X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X WJB/21630003. Plant Revised 2/9/99 Scientific and Common Name * Cirsium vulgare bull thistle * Conyza bonariemis flax-leaved horseweed * Conyza canadensis horseweed * Gotula australis Australian brass-buttons * Cotula coronopifolia brass-buttons * Cynaracardunculus cardoon Encelia californica California bush sunflower Eriophyllum confertijlorum golden yarrow Filago californica California fluffvveed * Gazania sp. gazania * Gaillardia grandiflora blanket flower ^ Gnaphalium bicolor bicolored cudweed Gnaphalium californicum California everlasting Gnaphalium canescens felty everlasting * Gnaphalium luteo-album white cudweed Segment 1 X X X X X Segment 2 X X X Segment 3 X X Segment 4 X Segment S X Segment 6 Segment 7 X X Segment 8 X X X Segment 9 X X X X X X X X X Segment 10 X X X X X X X X X Segment 11 WJB/21630003.Plant Revised 2/9/99 Scientific and Common Name Gnaphalium stramineum cotton-batting plant Helianthus annuus Common sunflower Grindelia camporum gum-plant Hemizonia fasciculata fascicled tarweed * Hedypnois cretica crete hedypnois Heterotheca grandiflora telegraph weed * Hypochaeris glabra smooth cat's-ear hocoma menziesii coastal goldenbush * Lactuca serriola prickly lettuce Lessingiafilaginifolia California-aster Limonium tea-lavender Limonium * Picris echioide bristly ox -tongue Pluchea sericea arrow weed * Sonchus asper ssp. Asper prickly sow thistle * Sonechus oleraceus common sow thistle Segment 1 X X X X X X X X X X X Segment 2 X X X X X Segment 3 X X X X X Segment 4 X X X Segment 5 X X X t X Segment 6 Segment 7 X X X X Segment 9 X X X X X X X Segment 9 X X X X X X X Segment10 X X X X X Segment 11 WJB/2l630003.PI«nt Revised 2/9/99 Scientific and Common Name Stephanomeria virgata twiggy wreathplant * Taraxacum officinale common dandelion Xanthium slrumarium cocklebur Segment 1 X X Segment 2 X Segment 3 X Segment ... 4., Segment 5 Segment 6 Segment 7 X Segment 8 X X Segment 9 X Segment 10 X Segment 11 BIGNONIACEAE - BEGONIA FAMILY * Begonia sp begonia * Tecomaria capensis cape honeysuckle * Catalpa speciosa catalpa X X X X BERBERIDACEAE - BARBERRY FAMILY Nandina domestica heavenly loamboo * Echium fastuosum pride of madeira X X BORAGINACEAE - BORAGE FAMILY Heliotropium citrassavicum salt heliotrope X X X BRASSICACEAE - MUSTARD FAMILY * Hirshfeldia incana short-podded mustard Lepidium nitidum shining peppergrass Pectocarya linearis ssp. Ferocula slender pectocarya * Raphanus sativtis radish Rorippa nasturtium-aquaticum water-cress X X X X X X X X X X X X X X X X X X X WJB/2l630003.Planl Revised 2/9/99 Scientific and Common Name * Sisymbrium irio London. rocket * Sisymbrium orientate Oriental mustard Segment 1 Segment 2 X Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 6 X Segment 9 X Segment 10 Segment 11 CACTACEAE - CACTUS FAMILY * Opuntta ficus-indica . Indian fig Opuntia littoralis coastal prickly pear X X X CAPPARACEAE - CAPER FAMILY Isomeris arborea bladderpod X X CAPRIFOLIACEAE - HONEYSUCKLE FAMILY * Lonicera japonica Japanese honeysuckle Lonicera subspicata southern honeysuckle Sambucus mexicana \ Mexican elderberry X X X X X X X CARYOPHYLLACEAE - PINK FAMILY •* Spergnlaria villosa villous.sand-spurrey -* Spergularia mbra red sand-spurrey * Stellaria media common chickweed X X X X X CHENOPODIACEAE - GOOSEFOOT FAMILY A triplex lentiformis quail brush * A triplex semibaccata Australian saltbush X X X X X •' X X X X X X WJB/2l630003.PIant Revised 2/9/99 Scientific and Common Name * Chenopodium album lamb's quarters * Chenopodium ambrosioides Mexican tea Salicornia virginica common pickleweed * Salsola tragus Russian thistle Suaeda taxifolia woolysea-blite Segment 1 X X X X X Segment I X Segment 3 X Segment 4 X Segment 3 X Segment 6 Segment 7 X X X X Segmeat 8 X X X X Segment 9 X X Segment 10 X X Segmeit Jl X CONVOLVULACEAE - MORNING-GLORY FAMILY * Convolvulus arvensis bindweed * Ipomoea purpurea common morning-glory X X X X X X X X CRASSULACEAE - STONECROP FAMILY * Aeoniumarboreum aeonium Crassula argentea jade plant X X CUCURBITACEAE - GOURD FAMILY Cucurbitafoetidissima calabazilla Marah macrocarpus var. macrocarpus wild cucumber X X X CUSCUTACEAE - DODDER FAMILY Cuscuta californica California dodder X X X ERICACEAE - HEATH FAMILY Xylococcus bicolpr mission manzanita X WJB/2l630003.PI»nt Revised 2/9/99 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 EUPHORBIACEAE - SPURGE FAMILY Chamaesyce maculata spotted spurge Chamaesyce polycarpa golondrina Eremocarpus setigerus dove weed * Ricinus communis castor-bean X X X X X X X X X X X , X FABACEAE - LEGUME FAMILY * Acacia longi folia golden wattle * Ceratonia siligua carob tree * Calliandra haematocephala pink powder puff Lotus scoparius deerweed ''Lotus strigosus strigose lotus Lupinus bicolor miniature lupine * Medicago polymorpha bur clover * Me Hiatus alba white sweetclover Melilotits officinalis yellow sweetdove X X X X X X X X X X X X X X X X > X X X X X X X X X X X X X X FAGACEAE - OAK FAMILY Quercus agrifolia coast live oak 1 X X WJB/2I630003.Plant Revised 2/9/99 Scientific and Common Name Quercus dumosa coastal scrub oak Quercus berberidifolia scrub oak Segment 1 Segment 2 Segment 3 Segmeat 4 Segdttiilt S Segment 6 Segment 7 Segment 8 Segment 9 X X Segment 10 X X Segment 1! FRANKENIACEAE - FRANKENIA FAMILY Frankenia salina alkali heath X X X GENTIANACEAE - GENTIAN FAMILY Centaurium vemtstum canchalagua X X GERANIACEAE- GERANIUM FAMILY * "Erodium botrys broad-lobed filaree * Erodium cicutariiim red-stemmed filaree •* Pelargonium zonatum zonal geranium X X X X X X X X X X X X X X X X X X X X X GROSSULARIACEAE - GOOSEBERRY FAMILY j Pelargonium zonata zonal j»eranium X HYDROPHYLLACEAE - WATERLEAF FAMILY Eriodictyon crassifolium thick-leaved yerba santa X X X JUGLANOACEAE - WALNUT FAMILY * Juglans regia English walnut X LAMIACEAE - MINT FAMILY * Marmbium vulgare horehound * Rosmarinus officinalis rosemary X X WJBai630003.PI«nt Revised 2/9/99 10 Scientific and Common Name Salvia apiana white sage Salvia mellifera black sage Segment 1 Segment 2 X Segment 3 X Segment 4 Segment S Segment * Segment 7 Segment 8 Segment 9 X X Segment 10 X Segment 11 LAURACEAE- LAUREL FAMILY * Cinnamomum camphorum camphor tree X MAGNOLIACEAE - MAGNOLIA FAMILY .*.. Magnolia grandi flora southern magnolia X MALVACEAE - MALLOW FAMILY * Hibiscus syriacus rose of sharoti Malacothamnus fascicnlatus mesa bushmallow * Malva parviflora cheeseweed Malvella leprosa , alkali-mallow X X X X X X X X X X X X X X X X MYOPORACEAE - MYOPORUM FAMILY Myopontm laetum myoporum X X X X X X MORACEAE - FIG FAMILY * Ficus microcarpa Indian laurel fig X X X MYRTACEAE - MYRTLE FAMILY * Bouganvillea sp. bouganvillea * Callistemon citrinus bottlebush * Eucalyptus sp. gum tree X X X X X i x X X X X X X X X X WJB/2l630003.PI«nt Revised 2/9/99 11 Scientific and Common Name * Ligustrium japonicum Japanese privet * Melaleuca quinquenervia cajeput tree Segment 1 X X Segment a Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 9 Segment 9 Segment 10 Segment ii OLEACEAE - OLIVE FAMILY * Olea europaea olive X X ONAGRACEAE - EVENING PRIMROSE FAMILY Oenothera ca Ufa mica California evening primrose X X OXILIDACEAE - OXALIS FAMILY * Oxalis pes-carpae Bermuda buttercup X PAPAVERACEAE - POPPY FAMILY Eschscholzia californica California poppy X X X X X X PITTOSPORACERAE - PITTOSPORUM FAMILY * Pittosporum undiilatum Victorian box X PLANTAGINACEAE - PLANTAIN FAMILY * Plantago lanceolata English plantain '* Plantago major common plantain * Plantago coronopus toothed plaintain X X X X X X X PLATANACEAE - SYCAMORE FAMILY Platamus acerifolia Platanus racemosa western sycamore X X X WJB/21630003.Plant Revised 2/9/99 . 12 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 9 Segment 9 Segment 10 Segment il LUMBAGINACEAE - LEADWORT FAMILY * Limoniumlatifolium annual statice X X X PODOGARPACEAE - PODOCARPUS FAMILY Podocarpus macrophyllus yew pine X POLEMONIACEAE - PHLOX FAMILY Navarretia atractyloides holly-leaved navarretia X X POLYGONACEAE - BUCKWHEAT FAMILY Eriogonum fascicidatum California buckwheat * Polygonum arenastrum common knotweed Polyonum lapathifolium willow-weed * Rumex crispus curly dock X X X X X X X X X X X X X PORTULACACEAE - PURSLANE FAMILY * Portulaca oleracea common purslane X X PRIMULACEAE - PRIMROSE FAMILY .* Anagallis arvensis scarlet pimpernel X X X PUNICACEAE - POMEGRANATE FAMILY * .Punica.granatum pomegranate X RHAMNACEAE- BUCKTHORN FAMILY ' Ceanothus tomentosus woolly-leaved ceanothus Rhamnus crocea spiny redberry <X X X X WJB/21630003.Planl Revised 2/9/99 13 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment * Segment » Segment 1ft Segment 11 ROSACEAE - ROSE FAMILY Adenosloma fasciculatum chamise Cercocarpus beliiloides birch-leaf mountain-mahogany Heteromeles arbutifolia toyon * Prunus sp. ornamental plum Prunus ilicifolia holly-leaved cherry * Pyracantha coccinea flrethorn * Raphiolepis indica Indian hawthorn X X X X X •» X X X X X X X X SALICACEAE - WILLOW FAMILY Populus fremontii ssp. Fremontii Fremont's cottonwood Salix gooddingii black willow Salix lasiolepis arroyo willow X X X X X X X X X SAPINDACEAE - SOAPBERRY FAMILY ^ Cupianopsis anacardioides carrot wood tree * Dodoneae viscosa hopseed bush X X X SCROPHULARIACEAE - FIGWORT FAMILY Castillerja exserta purple owl's-clover Keckiella cordifolia heart-leaved penstemon X X X X WJB/21630003. Plant Revised 2/9/99 14 Scientific and Common Name Mimulus aurantiacus orange bush monkey-flower Segment 1 Segmeat 2 Segment 3 Segment 4 Segment 5 Segmeat 6 Segment 7 Segmeat 9 X Segment 9 X Segmeat 10 Segment 11 SCROPHULARIACEAE - FIGWORT FAMILY Scrophularia califomica California figwort X SOLANACEAE - NIGHTSHADE FAMILY Datura wrightii jimson weed * Nicotiana glauca tree tobacco * Solanum elaeagnifolium white horse-nettle X X X X X X X X X X STRELITZIACERAE - BIRD OF PARADISE FAMILY * Strelitzia reginae bird of paradise * Strelitzia nicolai giant bird of paradise X X TAMARICACEAE - TAMARISK FAMILY * Tamarix sp. tamarisk X X X X TROPAEOLACEAE - NASTURTIUM FAMILY * Tropaeolum majns nasturtium X X ULMACEAE - ELM FAMILY * Ulmus parvifolia Chinese elm X X X X X VERBENACEAE - VERVAIN FAMILY * Lantana catnara lantana X ZYGOPHULLACEAE - CALTROP FAMILY * Tribulus terrestris punctive vine X WJB/2l630003.Plant Revised 2/9/99 15 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment $ Segment9 Segment 10 Segment 11 ANGIOSPERMS (MONOCOTYLEDONS) AGAVACEAE - AGAVE FAMILY * Agave americana century plant X ARECACEAE - PALM FAMILY * Phoenix canahensis Canary Island date palm * Washingtonia robusta Mexican fan palm * Syagrus romanzojfianum queen palm X X X X X X X X X X X X CYPERACEAE - SEDGE FAMILY Scirpus californicus California bulrush X X IRIDACEAE - IRIS FAMILY * Iris sp. bearded; iris * Moraea irididides fortnight lily X X 1 JUNCACEAE - RUSH FAMILY Juncus acutus ssp. Leopoldii spiny rush Juncus bufpnius toad rush X X X X X LILIACEAE - LILY FAMILY * Yucca gloriosa soft-tipped yucca Yyitcca schidigera Mojave yucca X X X POACEAE- GRASS FAMILY Achnatherum coronatum giant needlegrass X X WJB/21630003 Plant Revised 2/9/99 16 Scientific and Common Name * Arundo donax giant reed * Avenabarbata slender wild oat * Avenafatua wild oat * Bromus diandnts ripgut grass * Bromus hordeaceits soft chess * Bromus madritensis ssp. Rubens foxtail chess * Cortaderia selloana pampas grass * Cynodon dactylon Bermuda grass Distichlis spicata saltgrass * Hordeum murinum glaucous foxtail barley * Lamarkia aurea goldentop Leymus condensatus giant wild rye * Lolium multiflontm Italian ryegrass * Lolium perenne .perennial ryegrass Muhlenbergia rigens deergrass Nassella lepida small-flowered needlegrass Segment 1 X X X X X X X X X X Segment 2 X X X X X X X X X X Segment 3 X X X X X X X X X Segment 4 X X X X Segment 5 X X X X Segment « X Segment 7 X X X X X X X X X X Segment 8 X X X X X X X X X Segment 9 X X X X X X X Segment 10 X 1 X X X X X X Segment 11 X X X X X WJB/2l630003.Plant Revised 2/9/99 17 Scientific and Common Name Nassella pulchra purple needlegrass * Paspalum dilatatitm dallis grass * Pennisetum setaceum fountain grass * Phalaris minor Mediterranean canary grass * Polypogon monspeliensis annual beard grass * Schismus barbaths Mediterranean schismus * Vulpia myuros fescue Segment 1 X X Segment 2 X X . X X X X Segment 3 X X X Segment 4 X Segment S Segment 6 Segment 7 X X X X Segment 6 X X X Segatent * X Segment 10 X Segment 11 X X X TYPHACEAE - CATTAIL FAMILY Typha angustifolia narrow-leaved cattail Typha latifolia broad-leaved cattail X X X X X X WJB/2l630003.Plant Revised 2/9/99 18 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment II AMPHIBIANS RANIDAE - TRUE FROGS * Rana catesbeiana bullfrog X REPTILES IGUANIDAE- IGUANID LIZARDS Sceloporus occidentalis western fence lizard Via stansburiana side-blotched lizard X X X X X VIPERIDAE- VIPERS Crotalits viridis western rattlesnake X BIRDS PODICIPEDIDAE- GREBES Podilymbits podiceps .pied-billed grebe Podiceps nigricollis eared grebe X X X X PELECANIDAE - PELICANS Pelecanus occidentalis brown pelican X X ARDE1DAE - HERONS Ardea herodias great blue heron X X WJB/21630003. Animal Revised 2/8/99 Scientific and Common Name Ardea albus great egret Egretta thula 'snowy egret Nycticorax nycticorax black-crowned night-heron Segment 1 X X Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 ANATIDAE - WATERFOWL Anas platyrhynchos mallard Anas slrepera gad wall Oxyurajamaicensis ruddy duck X X X X X X X X X X X ACCIPITRIDAE - HAWKS Elanus leucurus white-tailed kite Accipiter cooperii Cooper's hawk Buteo lineatus red-shouldered hawk Buteo jamaicensis red-tailed hawk X X X X X X.X FALCONIDAE - FALCONS Falco sparverius American kestrel X PHASIANIDAE - PHEASANTS & QUAILS Callipepla californica California quail X X WJB/21630003 Animal Revised 2/8/99 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 RALLIDAE - RAILS & GALLINULES Gallinula chloropus common moorhen Fulica americana American coot X X X X CHARADRIIDAE - PLOVERS Charadrius vociferus killdeer X X X X X SCOLOPACIDAE - SANDPIPERS Catoplrophorus semipalmatus willet Limoxa fedoa marbled godwit x X LARIDAE - GULLS & TERNS Larus heermanni Heermann's gull Larus caltfornicus California gull Larus occidentalis western gull Sterna caspia Caspian tern Sterna for steri Forster's tern Sterna antillarum least tern X X X X X X X X X X X X X WJB/2l63000J.Animal Revised 2/8/99 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 COLUMBIDAE - PIGEONS & DOVES * Columba livia rock dove Zenaida macroura mourning dove X X X X X X X X X X X X APODIDAE - SWIFTS Chaetura vauxi Vaux's swift Aeronautes saxatatis white-throated swift X X X TROCHILIDAE - HUMMINGBIRDS Archilochus alexandri black-chinned hummingbird Calypte anna Anna's hummingbird Calypte costae Costa's hummingbird X X X X X X X X PICIDAE - WOODPECKERS Colaptes auratus northern flicker Picoides nuttallii Nuttall's woodpecker Picoides pubescens downy woodpecker X X X X X TYRANNIDAE - TYRANT FLYCATCHERS Empidonax difficilis Pacific-slope flycatcher X X WJB/21630003 Animal Revised 2/8/99 Scientific and Common Name Sayornis nigricanx black phoebe Sayornis saya Say's phoebe Myiarchus cinerascens ash-throated flycatcher Tyrannus vociferans Gassin's kingbird 'Tyrannus- vertical is western kingbird Segment 1 X Segment 2 X Segment 3 X X Segment 4 Segment 5 Segment 6 X Segment 7 X X Segment 8 X X X Segment 9 X Segment 10 X X Segment 11 X X ALAUDIDAE- LARKS Eremophila alpestris horned lark X HIRUND1NIDAE - SWALLOWS Stelgidopleryx serripennis northern rough-winged swallow Hirundopyrrhonota cliff swallow Hirundo rustica bam swallow X X X X X X CORVIDAE - JAYS & CROWS Aphelocomacalifornica western scrub-jay Corvus brachyrhynchos American crow Corvus cor ax common raven X X X X X X X X X X X X X X X X X X X X WJB/2l630003.Animal Revised 2/8/99 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 AEGITHALIDAE - BUSHTITS Psaltriparus minimus bushtit X X X TROCLODYTIDAE - WRENS Thryomanes bewickii Bewick's wren Troglodytes aedon house wren Cistothorus palustris marsh wren X X X X X X X MUSCICAPIDAE - KINGLETS, GNATCATCHERS, THRUSHES & BABBLERS Polioptila californica California gnatcatcher Catharus tislulalti.i Swainson's thrush Chamaea fascia ta wrentit X X X X X X X MIMIDAE -THRASHERS Mimus polyglottos northern mockingbird Toxostoma redivivum California thrasher X X X X X X X X X X X X X LANHDAE- SHRIKES Lanius ludovicianus loggerhead shrike X X STURNIDAE - STARLINGS * Sturnus vulgaris European starling X X X X X X X X X X X WJB/2l630003.Animal Revised 2/8/99 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 VIREQNIDAE - VIREOS Vireo hutloni Mutton's vireo X EMBERIZIDAE - WOOD WARBLERS, TANAGERS, BUNTINGS & BLACKBIRDS Vermivora celata orange-crowned warbler Dendroica petechia yellow warbler Dendroica coronata yeljow-rumped warbler Geothlypis trichas common yellowthroat Wilsonia pusilla Wilson's warbler Icteria virens yellow-breasted chat Piranga'ludovician'a western tanage Pheucticus hadovicianus rose-breasted grosbeak Pheucticus melanocephalus black-headed grosbeak Guiraca caerulea blue grosbeak + Pipilo maculats spotted towhee Pipilo crissalis California towhee X X X X X X x X X X X X X X X X X X X X x X • WJB/21630003. Animal Revised 2/8/99 Scientific and Common Name Aimophila ruftcepx rufous-crowned sparrow Ammodramus savannarum grasshopper sparrow Melospiza melodia song sparrow Agelaius phoeniceus red-winged blackbird Sturnella neglecta western meadow lark Euphagus cyanocephalus Brewer's blackbird Quiscalus mexicanus great-tailed grackle Molothrus ater brown-headed cowbird Icterus cucitllatus hooded oriole Icterus galbula Bullock's oriole Segment 1 X X X X X X X Segment 2 X X X X X Segment 3 X X X X X Segment 4 Segment 5 Segment 6 Segment 7 X Segment 8 X Segment 9 X X X X X X X X X X Segment 10 X X X X Segment 11 X X X FRINGILLIDAE - FINCHES Carpodacus mexicanus house finch Carduelis psaltria lesser goldfinch Carduelis lawrencei Lawrence's goldfinch Carduelis tristis American goldfinch X X X X X X X X X X X X X X X WJB/21630003 Animal Revised 2/8/99 Scientific and Common Name Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 PASSERIDAE - OLD WORLD SPARROWS * Passer domesticus house sparrow X X X X X X X X MAMMALS DIDELPHIDAE - NEW WORLD OPOSSUMS * Didelphis virginiana Virginia opossum X LEPORIDAE - HARES & RABBITS Sylvilagus audubonii Audubon's cottontail X X X SCIURIDAE - SQUIRRELS Spermophilus beecheyi California ground squirrel X X X X GEOMYIDAE - POCKET GOPHERS Thomomys bottae Botta's pocket gopher X X X CANIDAE - WOLVES & FOXES Canis latrans coyote X X WJB/21630003 Animal Revised 2/8/99 c i Thomas Lestie & Associates Biological & Cultural Investigations £ Monitoring MEMOEANPUM DATE: March 2,1998 TO: Ms. Peggy Gentry, Senior Planner Transtech Inc. FROM: Dr. Thomas A. Leslie, CA EPA, REA, Principal/Thomas Leslie & Associates SUBJECT: "Pre-assessment Of Waters" For The Coastal Rail Trail Project As requested, Thomas Leslie & Associates (TLA) has prepared the subject "Pre-assessment Of Waters". Table 1 identifies jurisdictional waters and wetland areas along the entire alignment of the Coastal Rail Trail Project (CRT) that will require regulatory approvals from at least the following agencies. • California Regional Water Quality Control Board (RWQCB) 401 waiver, • U.S. Army Corps Of Engineers (Corps) Nation Wide I ^ Permit, and • California Department Of Fish And Game (CDFG) Strcambed Alteration Agreement (1603). Pre-assessment Of Quantities Of Impacts To Jurisdictional Areas: It is estimated that a total of 0.308± acres of jurisdictional waters and wetlands will be impacted by construction of the CRT project between the cites of Oceanside and San Diego, California. The exact quantities and significance of potential impacts to jurisdictional waters and wetlands will be determined during a wetlands delineation being conducted in 1998. Transtech's 1997 Alignment Concept Plan. 1. City of Encinitas: Page 15 OF 4,5: between Birmingham and Chesterfield Drives at the northwest end of a park. Mitigation in this area would involve removal of non-native exotic plant species growing along a drainage and replanting the area with native species. 2. City of Del Mar: Page 21 OF 45: southwest of Cannel Valley Road: remove non-native exotic plant species growing along both side of SDNR tracks and replant with native species. At least one pair of Coastal California gnatcatcher inhabit the area immediately adjacent to the proposed trail alignment Mitigation in this area would involve removal of non-native exotic plant species growing immediately west of the CRT ROW and replanting the area with native plant species associated with "ideal" gnatcatcher habitat in the surrounding local vicinity. 32295 Clinton Keith Rd. Suite B7 Wildumar, CA 92595 Office (909) 698-0195 Fax (909) 698-2233 ma 8> VMttM&SIL'ESLI'E BIOLOGICAL & CULTURAL INVESTIGATIONS & MONITORING s> COenen ru TABLE 1: 'TRE-ASSESSMENT OF WATERS" FOR THE COASTAL RAIL TRAIL PROJECT Map Page No. Location Description Of Sensitive Biological resources And/Or Jurisdictions) Issues Potential Impacts And Potential Significance Recommended Action U) en8 UJ 8 05 LU 3 OF 45 Buccaneer Park: east of Oceanside Blvd. between SDNR and Pacific Street: Jurisdictional waters of the U.S. and associated wetlands. Potentially significant Impacts to 0.008± acres of Jurisdictional waters of the U.S. The impacts am related to related to discharge of fill or dredged materials into waters of the U.S. No wetland habitat will be impacted. 1. Conduct a wetlands delineation to more accurately determine quantities and significance of potential impacts to Jurisdictional waters of the U.S. 2. Prior to initiation of any project earth disturbing construction activities determine, prepare, and process applications for regulatory approvals identified as necessary during the delineation. 3. It is likely that at least the following regulatory approvals will be necessary: a. RWQCB 401 certification or waiver thereof, b. Corps Nation Wide 26a Permit, and c. CDPG 1603 Strearnbed/Lake Alteration Agreement LO octU. 32395Cdnton %fith %d, Suite W, 'WiUomar, CA92&5, Te&pfom *fa. 909. 698.0135; 'fa^ty. 909.6982233 CL 5. o CO inen«-•o SB.O) § LU inLU d os LU*-< Ln LU in<r§ Map Page No. 3 OF 45 And 4 OF 45 8 OF 45 24 OF 45 Location Buena Vista Lagoon: along the southwestern side of Goasl Highway southeast of Eaton Street. Polnsettia Coaster Station; southwest of Avenida Encinitas. Sorrento Valley goad: east of SDNR tracks. Description Of Sensitive Biological resources And/Or Jurisdictional Issues Widening of existing bridge on southwesterly side over open waters. This activity will not require discharge of fill or dredged materials into Jurisdictional areas. Vernal pools are located between the station and the SDNR tracks entirely within the 200' wide railroad right-of-way (ROW). Widening of existing bridge on westerly side over open waters. This activity will not require discharge of fill or dredged materials into Jurisdictional areas. Potential Impacts And Potential Significance Insignificant impacts related to minor amount of shading of open waters beneath overhang of bridge extension. No impacts as described in two letters prepared by DUDEK & Associates, Inc. ( March 12 and November 15, 1996) the Coastal Rail Trail in this section would be constructed within the boundaries of the Poinsettia Specific Plan (PSP). The trail would parallel the railroad right-of-way at the western edge of the PSP. Since the vernal pools in this area are located entirely within the railroad ROW nO impacts will occur to existing vernal pools. Insignificant impacts related to minor amount of shading of open waters beneath overhang of bridge extension. Recommended Action None. None. None. 32395Clinton "Kfitfi %/., Suite 37, iVittomar, CA 92595, Vefepfone ty. 909. 698.0195; fa^^ff. 909.6982233 u. § CD 8 U r Map PageNo. Location Description Of Sensitive Biological resources And/Or Jurisdiction^ Issues Potential Impacts And Potential Significance Recommended Action K CTi 8 25 OF 45 And 26 OF 45 Sorrento Valley Road: south of the Sorrento Valley Coaster Station; southwest of Sorrento Valley Blvd.; northeast of SDNR tracks to 805. Bridge construction over ephemeral jurisdictional stream courses (waters of the US bordered with riparian vegetation). If Ihe bridge is arched over the drainage this activity will not require discharge of fill or dredged materials into jurisdictional areas. Potentially significant impacts, to less than 0.20± acres of jurisdiclional waters of the U.S. and associated wetland habitat. The impacts are related to shading of waters and riparian vegetation beneath bridge and impacts to wetlands associated with the creek on either side of the Highway 805 bridge. 1. Conduct a wetlands delineation to more accurately determine quantities and significance of potential impacts to jurisdiclional waters of the U.S. related to CRT construction impacts, if any. 2. Prior to initiation of any project earth disturbing construction activities obtain necessary regulatory approvals. inUJ 8 S c<5 UJ Sa in 30 OF 45 Through 33 OF 45 Rose Canyon: west of Highway 805 bridge northeastern side of SDNR. Trail construction along northern side of SDNR will cross jurisdictional ephemeral drainage courses (waters of the US; no associated riparian vegetation). Potentially significant impacts to less than 0.10± acres of jurisdictional waters of the U.S. The impacts are related to discharge of fill or dredged materials into jurisdictional ephemeral waters of the U.S. (no associated wetlands). 1. Conduct a wetlands delineation to determine jurisdiction. 2. Prior to initiation of any project earth disturbing construction activities obtain necessary regulatory approvals. 3. It is likely that at least the following regulatory approvals will be necessary: a. RWQCB 401 waiver thereof, b. Corps Nation Wide 26a Permit, and c. CDFG 1603 Streambed/Lake Alteration Agreement 32395 Clinton Suit* »7y Wiftfomar, CH 9259$, Tekptont ftp. 909. 698.0195; ^a^^t. 909.6982233 IFFThomas LesCie & Jfcsociates Biological & Cultural Investigations & Monitoring Greig Peters California Regional Water Quality Control Board 9771 Clairemont Mesa Blvd., Suite A San Diego, CA 92124-1331 January 21, 1999 SUBJECT: Request For A 401 Waiver For The Proposed Coastal Rail Trail Project Dear Mr. Peters: As we discussed during a field meeting in November 1998, Thomas Leslie & Associated (TLA) delineators performed a jurisdictional analysis of the entire length of the subject trail right-of-way (ROW). The analysis was performed to determine if any areas of the proposed trail ROW would require a 401 permit prior to initiation of trail construction activities or if the trail could be constructed under the authorization of a 401 waiver. The analysis was performed between April 12, 1997 and December 15, 1998. As a result of the analysis TLA delineators determined that less than 1/3 acre of jurisdictional area will be impacted along the approximately 42 mile long trail ROW. The jurisdictional areas being impacted are situated in the Rose Canyon open space park between the 805 freeway and Genesee Avenue in the City of San Diego, California. The proposed ROW was carefully planned and engineered to avoid or minimize impacts to jurisdictional waters of the United States and associated sensitive habitat types (i.e., riparian vegetation, wetlands, marshes, and coastal sage scrub). Impacts to jurisdictional areas include less than 500 linear feet and less than 1/3 acres of waters of the United States, fresh water marsh, and riparian vegetationv Figure 1 plots the approximate locations of jurisdictional area being impacted. Impacts to all jurisdictional waters and marsh and riparian habitat will be conducted within the boundaries of the proposed trail ROW at a 1:1 ratio and will consist of removal of exotic plant species and installation of restoration plantings. Therefore, on behalf of the project coordinator. Mr. Steven Jantz, City of Carlsbad, TLA requests a 401 waiver be issued for the entire length of the project ROW. As requested, I have ]\J- included a set of orthophoto maps showing the proposed trail alignment between Oceanside /y[ and San Diego, California. •—-" Please call me if you gave any questions regarding this letter, require additional information, or would like to visit any portion of the site. Respectfully Submitted Thomas A. LesJie,^ J>., REA Principal^ ft \^ V^sven Jantz, City of Carlsbad Peggy Gentry, Trantech Engineers, Inc. 32395 Clinton Keith Rd. Suite B7 Wildomar. CA 92595 Office (909) 698-0195 Fax (909) 698-2233 GENERAL ATOMICS FACILITY /wl/ & CULTURAL tNVESTIGATJONS & MONITORING Figure 1: Approx. Location Of Jurisdictions! Areas Being Impacted By CRT Project Thomas LesCie & Associates Biological & Cultural Investigations & Momtunng DATE: March 2,1998 TO: Ms. Peggy Gentry, Senior Planner Transtech Inc. FROM: Dr. Thomas A. Leslie, CA EPA, REA, Principal/Thomas Leslie & Associates SUBJECT: "Pre-assessment Of Waters" For The Coastal Rail Trail Project As requested, Thomas Leslie & Associates (TLA) has prepared the subject "Pre-assessment Of Waters". Table 1 identifies jurisdictions! waters and wetland areas along the entire alignment of the Coastal Rail Trail Project (CRT) that will require regulatory approvals from at least the following agencies. • California Regional Water Quality Control Board (RWQCB) 401 waiver. • U.S. Army Corps Of Engineers (Corps) Nation Wide 14 Permit (Road Crossings), and • California Department Of Fish And Game (CDFG) Streambed Alteration Agreement (16X33). Pre-assessment Of Quantities Of Impacts To Jurisdictional Areas: It is estimated that a total of 0.308± acres of Jurisdictional waters and wetlands will be impacted by construction of the CRT project between the cites of Oceanside and San Diego, California. The exact quantities and significance of potential impacts to Jurisdictional waters and wetlands will be determined during a wetlands delineation being conducted in 1998. POTENTIAL MITIGATION AREAS: The following two areas have been tentatively identified as potential mitigation areas to mitigate impacts occurring during construction of the CRT. The location of the potential mitigation areas are identified by the page number of Transtech's 1997 Alignment Concept Plan. 1. City of Encinitas: Page IS OF 45: between Birmingham and Chesterfield Drives at the northwest end of a park. Mitigation in this area would involve removal of non-native exotic plant species growing along a drainage and replanting the area with native species. 2. City of Del Mar: Page 21 OF 45: southwest of Cannel Valley Road: remove non-native exotic plant species growing along both side of SDNR tracks and replant with native species. At least one pair of Coastal California gnatcatcher inhabit the area immediately adjacent to the proposed trail alignment. Mitigation in this area would involve removal of non-native exotic plant species growing immediately west of the CRT ROW and replanting the area with native plant species associated with "ideal" gnatcatcher habitat in the surrounding local vicinity. 32395 Clinton Keith Rd. Suite B7 Wildomar, CA 92595 Office (909) 698-0195 Fax (909) 698-2233 01a 8 LTSLIK & ASSOCIATES BIOLOGICAL & CULTURAL INVESTIGATIONS ft MONITORING Map Page No. Location Description Of Sensitive Biological resources And/Or Jurisdictioaal Issues Potential Impacts And Potential Significance Recommended Action 3 OF 45 Buccaneer Park: east ofOceanside Blvd. between SDNR and Pacific Street: JurisdictionaJ waters of (he U.S. and associated wetlands. Potentially significant GO8 018 Impacts related to discharge of fill or dredged materials into jurisdiction^ waters of the U.S. and loss of an unknown quantity of associated wetlands. 1. Conduct a wetlands delineation to determine quantities and significance of potential impacts to jurisdictional areas. 2. Prior to initiation of any project earth disturbing construction activities determine, prepare, and process applications for regulatory approvals identified as necessary during the delineation. 3. It is likely that at least the following regulatory approvals will be necessary: a. RWQCB 401 certification or waiver thereof, b. individual 404 Corps permit, and c. DFG 1603 agreement 32395 Cdnton S&it& J(d., Suite W, 'WiUomar, CA 92&5, Tefepfione 9fo. 909. 693.0195;. 909.6982233 Map PageNo. Location Description Of Sensitive Biological resources And/Or Jurisdictional Issues Potential Impacts And Potential Significance Recommended Action 8?3 OF 45 And 4 OF 45 Buena Vista Lagoon: along the southwestern side of Coast Highway southeast of Eaton Street. Widening of existing bridge on southwesterly side over open waters. This activity will not require discharge of fill or dredged materials into Jurisdictional areas. Insignificant impacts related to minor amount of shading of open waters beneath overhang of bridge extension. None. 8 OF 45 tr>»-»o ftUJ Poinsettia Coaster Station; southwest of Avenida Encinitas. Vernal pools are located between the station and the SDNR tracks. They also extend southwestward towards Poinsettia Lane. Potentially significant impacts related to construction of an impermeable trail on the northeastern side of the pools may result in a disruption of seasonal surface flows providing hydrology necessary for continued existence of pools. 1. Perform a hydrology - watershed investigation to determine the significance, if any, related to disruption of seasonal surface flows from the northeastern side of the pools. 2. Consider realignment of trail westerly of pools between pool* and SDNR tracks. 24 OF 45 Sorrento Valley Road: east of SDNR tracks. Widening of existing bridge on westerly side over open waters. This activity will not require discharge of fill or dredged materials into Jurisdictional areas. Insignificant impacts related to minor amount of shading of open waters beneath overhang of bridge extension. None. 25 OF 45 And 26 OF 45 Sorrento Vallev Road: south of the Sorrento Valley Coaster Station: southwest of Sorrento Valley Blvd.; northeast of SDNR tracks to 805. Bridge construction over ephemeral Jurisdictional stream courses (waters of the US bordered with riparian vegetation). If the bridge is arched over the drainage this activity will not require discharge of fill or dredged materials into jurisdicUonal areas. Potentially significant impacts, related to shading of waters and riparian vegetation beneath bridge and impacts to wetlands associated with the creek on either side of the Highway 805 bridge. 1, Conduct, a wetlands delineation to determine jurisdiction and significance of potential trail construction impacts, if any. 2. Prior to initiation of any project earth disturbing construction activities obtain necessary regulatory approvals. ILL 2 n 8 rv fi Map Page No. Location Description Of Sensitive Biological resources And/Or Jurlsdictiona! Issues Potential Impacts And Potential Significance Recommended Action 30 OF 45 Through 33 OF 45 Rose Canyon: west of Highway 805 bridge northeastern side of SDNR. Trail construction along northern side of SDNR will cross jurisdictional ephemeral drainage courses (waters of the US; no associated riparian vegetation). Potentially significant Impacts related to discharge of fill or dredged materials into jurisdictional waters of the U.S. (no associated wetlands). K COenu> in * 1. Conduct a wetlands delineation to determine jurisdiction. 2. Prior to initiation of any project earth disturbing construction activities obtain necessary regulatory approvals. 3. It is likely that at least the following regulatory approvals will be necessary: 401, individual 404 Corps permit, and DFG 1603 agreement. POTENTIAL MITIGATION AREAS City of Encinitos: City of Del Mar: between Birmingham and Chesterfield Drives at the northwest end of a park: remove non-nati ve exotic plan! species growing along a drainage and replant with native species (Page 15 OF 45). southwest of Carmel Valley Road: remove non-native exotic plant species growing along both side of SDNR tracks and replant with native species. Coastal California gnatcafchers inhabit Ihe area immediately adjacent to the proposed trail alignment. Mitigadon in this area would enhance their habitat (Page 21 OF 45). III. Methodology Biological resources of the Coastal rail trail were determined through literature review, general biological surveys, and focused surveys for special status species. Literature review The literature review included a review of existing biological resource information for projects that encompass the proposed Coastal Rail Trail corridor. A tbtal of 11 EIRs and technical documents were reviewed. In addition to reviewing reports, biological data from the Multiple Habitat Conservation Program and the Multiple Species Conservation Program were reviewed. Aerial photographs of the entire corridor route were also reviewed. Existing environmental documents reviewed included: Oceanside-San Diego Commuter Rail Project Environmental Impact Report (Coaster EIR) Alternatives Analysis/Draft Environmental Impact Statement/Environmental Impact Report for the Midcoast Corridor Final and Draft EIR for the Lomas Santa Fe Drive Grade Separation project. Batiquitos Lagoon Enhancement Project Final EIR/EIS Technical Appendices for the Draft EIR for the proposed North City Water Reclamation Plant Rose Canyon Trunk Sewer Interceptor Line EIR Nobel Drive and 1-805 Interchange and Extension Project Draft EIR/EIS Draft EIR for Oceanside-San Diego Commuter Rail Project Realignment of MiramarNAS DEIR/DEIS Downtown Encinitas/North 101 Corridor Specific Plan Draft Supplemental EIR Final EIR for San Dieguito River Park Concept Plan Other pertinent information reviewed included: (1) the Federal Register listing package for each federally listed endangered or threatened species potentially occurring in the corridor; (2) literature pertaining to habitat requirements of special status species potentially occurring in the corridor; (3) the CDFG Annual Report on the status of California's listed threatened and endangered plants and animals; (4) California Natural Diversity Data Base (CNDDB) (RareFind2) information regarding special status species potentially occurring in the corridor; and (5) the CDFG's Wildlife Habitat Relationships System for specific information on habitats occurring in the corridor. General Surveys General field surveys of the entire route of the proposed San Diego Coastal Rail Trail were conducted by vehicle in mid-April, 1997 by MBA personnel Tom Leslie, Gregg Miller and Claude Edwards/ Selected portions of the alignment were observed on foot. A general assessment of the existing conditions and habitats along the route was conducted and a list of common plant and C:\TEMP\Rail Trail Biology Report by TJM.doc 26 Printed 01/08/99 6:11PM animal species in each habitat developed. Selected sections of the Rail Trail alignment were marked on aerial maps of the route for subsequent focused biological surveys. This was based on the presence of protected habitats or habitats that could support special status species. Focused Surveys Focused surveys were conducted at 15 sites that were identified during the literature review and general surveys as biologically sensitive and where special status species could occur. Focused surveys were conducted for special status plant and animal species that were identified as potentially occurring in the habitats at the selected sites. The focused survey sites are listed from north to south along the alignment in Table 2. The locations of the focused survey sites are briefly described below along with the reasons for selecting the sites. Figure X shows the location for each of focused surveys sites. The focused survey sites were visited, and focused surveys were conducted between early May and late-June, 1997. The purpose of the focused surveys was to determine the presence or absence of special status species and protected habitats, and to identify potential negative impacts to those resources that could result from development and operation of the Coastal Rail Trail. All surveys were conducted on foot by MBA biologist Claude Edwards. The dates and hours of the surveys, as well as weather conditions, are shown in Table 2. Native habitat type and plant and animal species observed in each site subject to a focused survey were documented on alignment maps in the field. Plant communities were categorized based on Holland's classification system (Holland 1986). C:\TEMP\Rail Trail Biology Report by TJM.doc 27 Printed 01/08/99 6:11 PM Insert Figure X C:\TEMP\Rail Trail Biology Report by TJM.doc 28 Printed 01/08/99 6:11PM Table 2 Focused Biological Survey Locations and Survey Dates Site No. 1 1 2 2 3 3 4 5 6 Location South side of the San Luis Rey River mouth South side of the San Luis Rey River mouth Buccaneer Beach Park Buccaneer Beach Park Buena Vista Lagoon Buena Vista Lagoon Westendof Penasquitos Slough Penasquitos Slough east side along Sorrento Valley Road Penasquitos Creek along Roselle Street City Oceanside Oceanside Oceanside Oceanside Oceanside & Carlsbad Oceanside & Carlsbad Del Mar & San Diego San Diego San Diego Segment 1 1 1 1 1 1 8 8 8 Survey Dates APR 29 JUN 10 APR 29 JUN 10 APR 29 JUN 10 JUN 2 JUN 2 JUN 2 Survey Hours 0900 to 1630 0900 to 1230 0900 to 1630 0900 to 1230 0900to 1630 0900 to 1230 0630 to 1130 0630 to 1130 0630 to 1130 Field Conditions During Surveys Overcast, clearing to sunny; variable light to moderate breezes; 70 to 76F. Overcast, clearing to hazy-sun; moderate W breezes; 68 to 76F. Overcast, clearing to sunny; variable light to moderate breezes; 70 to 76F. Overcast, clearing to hazy-sun; moderate W breezes; 68 to 76F. Overcast, clearing to sunny; variable light to moderate breezes; 70 to 76F. Overcast, clearing to hazy-sun; moderate W breezes; 68 to 76F. Overcast, later becoming sunny; calm to moderate westerly breezes; 66 to 78F. Overcast, later becoming sunny; calm to moderate westerly breezes; 66 to 78F. Overcast, later becoming sunny; calm to moderate westerly breezes; 66 to 78F. C:\TEMPVRail Trail Biology Report by TJM.doc 29 Printed 01/08/99 6:11 PM 7 8 9 9 10 11 12 13 14 15 Carroll Canyon Creek west of 805 overpass Carroll Canyon Creek east of 805 overpass SDNR Right-of-way between 805 and Miramar Road SDNR Right-of-way between 805 and Miramar Road SDNR Right-of-way between Miramar Road and 805 Original Trail between 805 and Genesee SDNR Right-of-way between 805 and Genesse Original Trail between Genesee and Oilman North side of SDNR Right-of-way between Genesee and Oilman Original Trail between Oilman and I-5/SR-52 Junction San Diego San Diego San Diego San Diego San Diego San Diego San Diego San Diego San Diego San Diego 8 8 8 8 8 8 8 . 9 9 9 JUN2 JUN17 JUN17 JUN24 JUN24 MAY 3 MAY 3 MAY1 MAY1 MAY1 0630 to 1130 0700 to 1130 0700 to 1130 0615 to 0930 0615to 0930 1400 to 1800 1400 to 1800 0800 to 1430 0800 to 1430 0800 to 1430 Overcast, later becoming sunny; calm to moderate westerly breezes; 66 to 78F. Hazy-overcast; light breezes; 66 to 74F. Hazy-overcast; light breezes; 66 to 74F. Mostly cloudy, clearing to hazy- sun; variable light breezes; 66 to 76F. Mostly cloudy, clearing to hazy- sun; variable light-breezes; 66 to 76F. Hazy-sun; moderate W breezes; 80F. Hazy-sun; moderate W breezes; 80F. Mostly cloudy, clearing to hazy- sun; variable light to moderate breezes; 70 to 76F. Mostly cloudy, clearing to hazy- sun; variable light to moderate breezes; 70 to 76F. Mostly cloudy, clearing to hazy- sun; variable light to moderate breezes; 70 to 76F. C:\TEMP\Rail Trail Biology Report by TJM.doc 30 Printed 01/08/99 6:11PM Focused Survey Site 1 - South side of the San Luis Key River mouth This site is at the northern terminus of the proposed trail at the San Luis Rey River. The site is situated in an already disturbed suburban environment along the alignment where the alignment connects to an existing bike trail system proceeding eastward along the San Luis.Rey River. The literature review found California gnatcatcher, Pacific pocket mouse, and Belding's savannah sparrow occurring in coastal sage scrub habitat in the vicinity. The general biological surveys identified disturbed sage scrub habitat along the corridor. Focused Survey Site 2 - Buccaneer Beach Park This site is located where the rail trail route passes through the side of Buccaneer Beach Park, a community park along Loma Alta Creek. The general biological surveys identified potential indirect impacts to wetland vegetation associated with the creek. Further, there may be potential jurisdictionaJ (Corps of Engineers) issues with an intermittent tributary creek north of the train tracks that has some salt marsh vegetation. Focused Survey Site 3 - Buena Vista Lagoon This site is located along the edge of Buena Vista Lagoon where the alignment passes through a disturbed area between a suburban environment and the edge of the lagoon. The Buena Vista Lagoon Ecological Reserve contains 196 acres of coastal freshwater lagoon habitat. Based on the literature review, there is potential for the following special status species to occur in the vicinity of the alignment, particularly along the lagoon: least Bell's vireo, light-footed clapper rail, California red-legged frog, and tidewater goby. The general biological surveys identified potential indirect impacts to wetland habitat associated with Buena Vista Lagoon. Focused Survey Site 4 - Penasquitos Slough-west end This site is located on the originally proposed alignment along the southern edge of a public parking lot. The site is located adjacent to coastal sage scrub and tidal salt marsh habitats. During general surveys California gnatcatchers were observed in the coastal sage scrub habitat adjacent to the trail. The literature review identified California least tern, light-footed clapper rail, and Belding's savannah sparrow as potentially occurring in the salt marsh vegetation. Focused Survey Site 5 - Penasquitos Slough-eastside along Sorrento Valley Road. Site 5 is located along the disturbed western edge of Sorrento Valley Road adjacent to the eastern edge of the extensive tidal salt marsh habitat of the Penasquitos Slough. General biological surveys identified the salt marsh area as sensitive. Focused Survey Site 6 - Penasquitos Creek in the vicinity of Roselle Street Site 6 lies west of Roselle Street and south of the 1-5 and 1-805 interchange. Site 6.is parallel to and east of an extensive riparian area that is within the SDNR right-of-way. General biological surveys identified the riparian area as a sensitive habitat. Focused Survey Site 7 - Carroll Canyon Creek-west of 805 overpass C:\TEMP\Rail Trail Biology Report by TJM.doc 31 Printed 01/08/99 6:11PM Site 7 is located along and within Carroll Ganyon Greek west of the 1-805 freeway on the originally proposed alignment. General biological surveys found that the original trail alignment ran through riparian woodland, riparian scrub, and flowing water associated with Carroll Canyon Creek. The literature review indicated that the area is within a major migration and movement corridor for birds and other wildlife. Focused Survey Site 8 - Carroll Canyon Creek-east of 805 overpass Site 8 parallels Carroll Canyon Creek east of the 1-805 freeway. General surveys showed that the site bordered riparian woodland habitat. Focused Survey Site 9 - SDNR Right-of-way between 805 and Miramar Road This site follows the existing train tracks within the existing right-of-way General surveys found the alignment runs through coastal sage scrub habitat and potentially contained California gnatcatchers. Focused Survey Site 10 - SDNR Right-of-way between Miramar Road and 805 This survey site parallels the train tracks and runs through coastal sage scrub habitat. Literature review and general surveys both indicated the potential for California gnatcatchers in the coastal sage scrub habitat. Focused Survey Site 11 - Original Trail between 805 and Genesee Avenue Site 11 lies along the originally proposed alignment on the south side of SDNR right-of-way, west of 1805 to Genesse Avenue. The general surveys found that the site is along and within the Rose Creek streambed, and is adjacent to chaparral and oak habitats bordering Rose Creek. Focused Survey Site 12 - SDNR Right-of-way between 805 and Genesee Avenue Site 12 is along the new route chosen for the alignment between 805 and Genesee Avenue. The site and the new alignment lie on the north side of SDNR right-of-way. The literature review revealed that the site is near a known active California gnatcatcher area between Nobel Drive and SDNR's right-of-way approximately 10,000 feet west of Genesee Avenue. The general surveys found that the in this area vegetation is successfully replanted coastal sage scrub, with the potential for use by gnatcatchers. Focused Survey Site 13 - Original Trail between Genesse Avenue and Gilman Drive This site is located along the originally proposed alignment west of Genesee Avenue and within Rose Canyon Park. The literature review indicated that the following federal and state-listed species may occur in the vicinity of the site: San Diego button celery, San Diego mesa mint, California gnatcatcher, Belding's savannah sparrow, and San Diego fairy shrimp. The general surveys found that the site is adjacent to chaparral and oak habitats. Focused Survey Site 14 - North Side of SDNR right-of-way between Genesee Avenue and Gilman Drive C:\TEMP\Rail Trail Biology Report by TJM.doc 32 Printed 01/08/99 6:11PM Site 14 is located on the north side of SDNR's right-of-way between Genesee Avenue and Oilman Drive in the newly proposed alignment. The general surveys found that although the proposed alignment borders a narrow band of disturbed habitat located just south of several suburban developments, the area supports a mixture of habitats, including native vegetation, as well as extensive patches of exotic plants. The general surveys also found several drainage channels and areas that support wetland vegetation. Focused Survey Site 15 - Original Trail between Oilman Drive to I-15/SR-52 Junction. This site lies along the originally proposed alignment between Oilman Drive and the I-15/SR-52 Junction, within Rose Creek Park, south of the SDNR right-of-way. General surveys found that the originally proposed alignment crosses Rose Creek and tributary drainages from the south and that habitats in this area contain some patches of coastal sage scrub vegetation, riparian scrub and riparian woodland. C:\TEMP\Rail Trail Biology Report by TJM.doc 33 Printed 01/08/99 6:11PM IV. RESULTS AND CONCLUSIONS Literature Review The literature review found information concerning the general biological setting of the proposed alignments, habitats in the area, and the known occurrence of special status species. Information in the literature indicated that much of the corridor route was developed, but that numerous areas of vegetation occur along the route. The vegetation varies from disturbed stands of non-native vegetation to relatively undisturbed areas of native vegetation. Native habitats reported to occur include coastal sage scrub, coastal bluff scrub, maritime succulent scrub, chaparral, oak woodland, grasslands, freshwater marsh, wetlands, brackish wetlands, and southern coastal salt marsh. The literature review also showed the known occurrence of numerous special status species in the area of the proposed corridor. These are shown in Tables 3 and 4. C:\TEMP\Rail Trail Biology Report by TJM.doc 34 Printed 01/08/99 6:11PM TABLE 3 SPECIAL STATUS PLANT SPECIES WITH POTENTIAL TO OCCURR ALONG THE COASTAL RAIL TRAIL Species Scientific Name Acanthomintha ilicifolia Adolphia California Arctostaphylos glandulose ssp crassifolia Artemisia palmeri Astragalus tenner var //// Baccliaris vanessae Ferocactus viridescens Chorizanthe orcuttiana Coreopsis maritima Corethrogyne filaginifolia var incana Corethrogyne filaginifolia var linifolia Dudleya blochmaniae ssp brevifolia Dudleya viscida Eryngium aristulatum var jiarishii Euphorbia misera Monardella linoides ssp viminea Nemacaulis denudata var gracilis Pogogyne abramsii Common Name San Diego ihom- mint California adolphia Del Mar manzanita San Diego sagewort Coastal dunes milk- vetch Encinitas baccharis San Diego barrel cactus (velvet) Orcutt's spineflower Sea dahlia San Diego sand aster Del Mar Mesa sand aster Short-leaved dudleya Sticky dudleya San Diego button celery Cliff spurge Willowy monardella Slender woolly- heads San Diego mesa mint Status USFWS PE — FE —FE FT FSC FE - - FSC FSC FSC FE —FPE - FE CDFG CE — — —CE CE -- CE « -- — — — CE —CE -- CE CNPS IB 2 IB 2 IB IB 2 IB 2 IB IB IB IB IB 2 IB 2 IB Preferred Habitat coastal scrub, chaparral, grasslands and vernal pools coastal scrub, chaparral, and grassland chaparral chaparral coastal bluff scrub and coastal dunes chaparral coastal scrub, grassland and chaparral coastal scrub and chaparral coastal scrub and coastal bluff scrub coastal scrub, coastal bluff scrub and chaparral coastal scrub and chaparral coastal scrub and chaparral coastal scrub, coastal bluff scrub and chaparral coastal scrub, grasslands and vernal pools coastal scrub and coastal bluff scrub riparian scrub coastal dunes vernal pools Known Presence/Potential Habitat/Potential on Site '• C:\TEMP\Rail Trail Biology Report by TJM.doc 35 Printed 01708/996:11 PM Species Scientific Name Common Name Status USFWS CDFG CNPS Preferred Habitat Known Presence/Potential Habitat/Potential on Site Pogogyne nudiuscula Otay Mesa mint FE CE IB vernal pools U.S. Fish and Wildlife Service FE Federal Endangered FT Federal Threatened PE Proposed Endangered PT Proposed Threatened FC Federal Candidate . FSC Species of Concern California Department of Fish and Game CE California Endangered CT California Threatened CR California Rare California Native Plant Society IA Plants presumed extinct in California. IB Plants rare, threatened, or endangered in California and elsewhere. 2 Plants rare, threatened, or endangered in California, but more common elsewhere. 3 Plants about which we need more information. . 4 Plants of limited distribution. C:\TEMP\Rail Trail Biology Report by TJM.doc 36 Printed 01/08/99 6:11 PM TABLE 4 SPECIAL STATUS ANIMAL SPECIES WITH POTENTIAL TO OCCURR ALONG THE COASTAL RAIL TRAIL Scientific Name Common Name Status USFWS CDFG Habitat Potential to Occur Invertebrates Streptocephalus wootfoni Branchinecta sandiegonensis Branchinecta lynchi Riverside fairy shrimp San Diego fairy shrimp vernal pool fairy shrimp FE FE FT — -- -- tectonic swales/ earth slump basins, grasslands, and coastal sage scrub vernal pools rain filled pools of grasslands Amhibians Kana aurora draytonii California red-legged frog FT CSC quiet pools of streams and marshes Reptiles Cnemidophorus hyperythrus beldingi Clemmys marmoraia pallida Beldings orange-throated whiptail Western pond turtle FSC FSC ssc ssc low elevation coastal scrub, chaparral, valleys and foothills Permanent bodies of fresh water, requires basking sites and nearby upland nesting sites Fish Eucyclogobius newberryi tidewater goby FE ssc brackish waters Birds Accipiter cooperi Accipiter striatus Aquila chrysaetos Ardea herodias Athene cunicularia Campylorhynchus brunneicapillus couesi Cooper's hawk Sharp-shinned hawk Golden eagle Great blue heron Burrowing owl Coastal cactus wren • - — — FSC ssc ssc ssc s ssc ssc riparian and woodland riparian rolling foothills and coastal-range terrain with scattered oaks or sycamores nests in tall tress and on cliff sides in marshes grasslands, and desert scrublands coastal sage scrub C:\TEMP\Rail Trail Biology Report by TJM.doc 37 Printed 01/08/99 6:11PM Scientific Name Cliaradrius alexandrinus nivosus Circus cyaneus Dendroica petechia brewsteri Elanus leucurus Falco peregrinus anatum Icleria virens Nycticorax nycticorax Passerculus sandwichemis beldingi Pelecanus occidentalis californicus Phalacrocorax auriius Polioptila califomica Rallus longirostris levipes Sterna antillarum browni Vireo belli! pusillus Common Name Western snowy plover Northm harrier Yellow warbler White-tailed kite American peregrine falcon Yellow-breasted chat Black-crowned night heron Belding's savannah sparrow California brown pelican Double-crested cormorant California gnatcatcher Light-footed clapper rail California least tern Least Bell's vireo Status USFWS FT -- - -- FE - - FSC FE . - FT FE FE FE CDFG ssc ssc ssc FP CE, FP SSC - CE CE, FP SSC SSC CE.FP CE, FP CE Habitat nests on sandy beaches and shores salt and freshwater marshes, grasslands riparian foothills, valleys, river bottoms and marshes woodlands, riparian and wetlands riparian trees and tulle patches in marshes coastal salt marshes nests on coastal islands just outside surf line coastal cliffs and off-shore islands coastal sage scrub below 2500 ft. in arid washes, mesas, and slopes saltmarshes with tidal sloughs nests on sparsely vegetated flat substrates summer resident in low riparian growth Potential to Occur Mammals Perognalhus longimembris pacificus Pacific pocket mouse FE SSC Coastal plains i C:\TEMP\RaiI Trail Biology Report by TJM.doc 38 Printed 01/08/99 6:11 PM Scientific Name Common Name Status USFWS | CDFG Habitat Potential to Occur U.S. Fish and Wildlife Service FE Federal Endangered FT Federal Threatened PE Proposed Endangered FC Federal Candidate FSC Federal Species of Concern California Department of Fish and Game CE California Endangered CT California Threatened SSC Species of Special Concern FP Fully Protected * Considered sensitive by the California Natural Diversity Data Base. C:\TEMP\Rail Trail Biology Report by TJM.doc 39 Printed 01/08/99 6:11 PM General Surveys The general surveys of the entire route, found that the majority of the proposed alignment for the coastal rail trail passes through commercial, urban and residential developed areas; or areas of disturbed vegetation within the SDNR right-of-way. Developed areas along the proposed alignment contain small commercial establishments, single- and multi-family residential uses, mixed-use structures, mobile home parks, professional office, public office, and small industrial uses. Commercial areas provide low value habitat for wildlife. They contain little vegetation, and are subject to noise and disturbance from traffic and other human activities. Species found in these areas are tolerant of human activity and are generally very common in the region. • • , The vegetation in the residential areas is generally composed of landscaped plantings with some tall trees, little understory and grass in the herbaceous layer. The vegetation is intensely manicured and irrigated typical of residential landscapes. Landscape plantings including trees and shrubs provide limited nest and foraging sites for birds, and grass areas such as lawns also provide feeding sites. Species found in residential areas are tolerant of human activity and are generally common in the region. Disturbed vegetation, while containing some native plant species, is generally dominated by non- native species, and is often subject to disturbance and noise from human activities. Disturbance range from ORV use, to dumping of yard waste. The disturbances lower the value of the areas for native wildlife. As result, development of the Coastal Rail Trail is not anticipated to pose a threat to or result in negative impacts to natural habitats or sensitive biological resources over most of its length. Those areas where possible impacts could occur were subject to more detailed focused surveys and are discussed below. Adverse impacts to those few areas identified as sensitive habitats can be mitigated through avoidance. A few areas may represent jurisdiction wetlands and formal delineation surveys should be conducted. Possible impacts to jurisdictional wetlands will require consultation with the Army Corps of Engineers. Appendix A lists all the plant and animal species observed during the course of the general and focused surveys. Focused Surveys C:\TEMP\Rail Trail Biology Report by TJM.doc 40 Printed 01/08/99 6:11 PM The results of the fifteen focused surveys are presented below by specific sections inspected along the Coastal Rail Trail proposed route (see Table 2). Figure X shows the location of each of these focused surveys. Focused Survey Site 1 - South side of the San Luis Key River mouth Site 1 is situated in an already disturbed suburban environment along the alignment and connects to an existing bike trail system proceeding eastward along the San Luis Rey River. No special status species were detected or identified at Site 1 during focused surveys. No impacts to special status plant or animal species or their habitats at Focused Survey Site 1 are expected from development or operation of the proposed Coastal Rail Trail. No impacts to biological resources within the neighboring wetlands associated with the San Luis Rey River or to plants and animals in the vicinity are expected. Focused Survey Site 2 - Buccaneer Beach Park The rail trail route passes through the side of Buccaneer Beach Park, a community park along Loma Alta Creek. The alignment runs along the side of Loma Alta Creek. No special status species were detected or identified at Site 2 during focused surveys. No impacts to special status plant or animal species or their habitats at Focused Survey Site 2 are expected from development or operation of the proposed Coastal Rail Trail. mdirect impacts to Loma Alta Creek could occur from increased human activity along the trail and subsequent entry into the habitats along the creek. Use of design measures such as fences and interpretative signs would minimize potential disturbances. There may also be some potential jurisdictional issues with an intermittent tributary creek north of Loma Alta Creek that contains salt marsh vegetation. Focused Survey Site 3 - Buena Vista Lagoon No special status species were detected or identified at Site 3 during focused surveys. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 3 are expected from development or operation of the proposed Coastal Rail Trail. Although no direct impacts are expected to the wetland habitat associated with Buena Vista Lagoon, the proximity of the alignment could increase human disturbances at the edge of the habitat. Use of design measures such as fences and interpretive signs would minimize potential C:\TEMP\Rail Trail Biology Report by TJM.doc 41 Printed 01/08/99 6:11PM disturbance of the adjacent habitat. Presently, the Buena Vista Lagoon Reserve is mainly used for passive recreational and educational activities. Focused Survey Site 4 - Penasquitos Slough-west end California gnatcatchers were observed at Site 4 in the coastal sage scrub habitat adjacent to the trail. No other special status species were detected or identified at Site 4 during the focused surveys. * The original alignment has been redesigned and now diverts the bicycle traffic and pedestrians away from this area and along the northern side of the parking lot. This eliminates potential impacts to California gnatcatchers, and coastal sage scrub and tidal salt marsh habitats. Focused Survey Site 5 - Penasquitos Slough-eastside along Sorrento Valley Road. No special status species were detected or identified at Site 5 during focused surveys. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 5 are expected from development of the proposed Coastal Rail Trail. There is potential for indirect impacts to the vegetation and wildlife of Penasquitos Slough from increased presence of humans. Use of design measures such as fences and interpretive signs would minimize potential disturbance of the vegetation and wildlife. Focused Survey Site 6 - Penasquitos Creek in the vicinity of Roselle Street No special status species were detected or identified at Site 6 during focused surveys. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 6 are expected from development of the proposed Coastal Rail Trail. There is potential for indirect impacts to the vegetation and wildlife of Penasquitos Slough from increased presence of humans. Use of design measures such as fences and interpretive signs would minimize potential disturbance of the vegetation and wildlife. Focused Survey Site 7 - Carroll Canyon Creek-west of 805 overpass No special status species were detected or identified at Site 7 during focused surveys. The site contains stands of riparian woodland and riparian scrub habitat, and flowing water in Carroll Canyon Creek. The creek and associated wildlife habitat are jurisdictional areas under the regulation of both the U.S. Army Corps of Engineers and the California Department of Fish and Game. Further, the area is within a major migration and movement corridor for birds and other wildlife. C:\TEMP\Rail Trail Biology Report by TJM.doc 42 Printed 01/08/99 6:11PM The original trail alignment ran through these sensitive habitats. Construction of the original alignment would have resulted in significant direct impacts to these habitats and jurisdictional areas. The alignment has been redesigned and relocated to be in the SDNR right-of-way within an already disturbed area, east of the sensitive areas. Thus, impacts to these areas have been avoided. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 7 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 8 - Carroll Canyon Creek-east of 805 overpass No special status species were detected or identified at Site 8 during focused surveys. The trail parallels Carroll Canyon Creek and borders riparian woodland habitat. Direct and indirect impacts to the creek are expected from development of crossings for bike and pedestrian traffic. These impacts should be short-term and will only occur during the construction phase. Focused Survey Site 9 - SDNR Right-of-way between 805 and Miramar Road Two adult California gnatcatchers were heard and observed at Site 9 in the coastal sage scrub habitat at the bend in the tracks north of Miramar Road. There may be some temporary direct impacts to vegetation bordering the tracks during construction. However, no direct impacts are expected to sensitive species along this portion of the alignment. Any vegetation disturbance should be conducted outside the California gnatcatcher breeding season (February 15 to July 31) to avoid impacts to nesting gnatcatchers. The area should be surveyed by a biologist familiar with California gnatcatchers prior to vegetation removal to verify that breeding is not occurring. Focused Survey Site 10 - SDNR Right-of-way between Miramar Road and 805 California gnatcatchers were observed in the coastal sage scrub habitat below the train tracks east of 805. Additionally Cooper's Hawks were observed foraging and flying in the vicinity of Miramar Road above Site 10. There may be some temporary direct impacts to vegetation bordering the tracks during construction. Direct impacts could occur to California gnatcatchers along this portion of the alignment. Any vegetation disturbance should be conducted outside the California gnatcatcher breeding season (February 15 to July 31) to avoid impacts to nesting gnatcatchers. The area should be surveyed by a biologist familiar with California gnatcatchers prior to vegetation removal to verify that breeding is not occurring. C:\TEMP\RaiI Trail Biology Report by TJM.doc 43 Printed 01/08/99 6:11PM No direct impacts to other special status plant or animal species or their habitats at Focused Survey Site 10 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 11 - Original Trail between 805 and Genesee Avenue No special status species were detected or identified at Site 11 during focused surveys. The original proposed alignment between the 805 and Genessee Avenue followed the south side of the SDNR right-or-way and entered the Rose Creek streambed. Construction in this area would have resulted in significant impacts to wetland vegetation associated with the streambed, and the surrounding chaparral and oak woodland habitats bordering Rose Creek. This alignment would have also significantly impacted an active wildlife corridor. The alignment has been redesigned and relocated to the north side of the SDNR right-of-way, to avoid adverse impacts to Rose Creek and associated habitats. No direct impacts to special status plant or animal species or their habitats at Focused Survey Site 11 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 12 - SDNR Right-of-way between 805 and Genesee Avenue There is an active California gnatcatcher area between Nobel Drive and SDNR's right-of-way approximately 10,000 feet west of Genesee Avenue. This is within replanted coastal sage scrub habitat. There may be some temporary direct impacts to vegetation bordering the tracks during construction. Direct impacts could occur to California gnatcatchers along this portion of the alignment. Any vegetation disturbance should be conducted outside the California gnatcatcher breeding season (February 15 to July 31) to avoid impacts to nesting gnatcatchers. The area should be surveyed by a biologist familiar with California gnatcatchers prior to vegetation removal to verify that breeding is not occurring. No direct impacts to other special status plant or animal species or their habitats at Focused Survey Site 12 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 13 - Original Trail between Genesse Avenue and Gilman Drive No special status species were detected or identified at Site 13 during focused surveys. The original trail route west of Genesee Avenue follows well-established public pathways that run within Rose Canyon Park. No additional construction activities are anticipated for this section of the alignment. No impacts are anticipated to the native habitat surrounding this route. No direct impacts to special status plant C:\TEMP\Rail Trail Biology Report by TJM.doc 44 Printed 01/08/99 6:11PM or animal species or their habitats at Focused Survey Site 13 are expected from development of the proposed Coastal Rail Trail. Focused Survey Site 14 - North Side of SDNR right-of-way between Genesee Avenue and Oilman Drive No special status species were detected or identified at Site 14 during focused surveys. This alternative alignment to the original route would follow the north side of SDNR's right-of-way between Genesee Avenue and Oilman Drive. SDNR's right-of-way borders a narrow band of disturbed habitat located just south of several suburban developments. This area is laced with several existing dirt bike paths and supports a mixture of habitats, including native vegetation, as well as extensive patches of exotic plants. Within this area are several drainage channels or areas that support wetland vegetation. The most recent alignment of the trail runs through SDNR's right- of-way. The areas supporting wetland vegetation should be evaluated for potential jurisdictional value. Focused Survey Site 15 - Original Trail between Gilman Drive to I-15/SR-52 Junction. No special status species were detected or identified at Site 15 during focused surveys. The original trail route between Gilman Drive and the I-15/SR-52 Junction follows well-established public pathways within the Rose Creek Park area, south of SDNR's right-of-way. The alignment crosses Rose Creek and tributary drainages from the south. The habitats in this area consist mostly of non-native grasses and mustard with patches of coastal sage scrub vegetation, riparian scrub and riparian woodland. Construction of the proposed trail along this alignment would require considerable earthwork and would be expected to adversely impact the native habitats found in the area. However, no special status species were observed along the alignment during this focused survey. No adverse impacts to special status species are expected. C:\TEMP\Rail Trail Biology Report by TJMdoc 45 Printed 01/08/99 6:11PM REFERENCES BRW, Inc. 1995. Alternatives Analysis/Draft Environmental Impact Statement/Environmental Impact Report for the Midcoast Corridor. Prepared for U.S. Department of Transportation and Metropolitan Transit Development Board. February. Butler Roach & Associates. 1994. Final and Draft EIR for the Lomas Santa Fe Drive Grade Separation project. Prepared for City of Solana Beach. November. CH2M. 1990. Batiquitos Lagoon Enhancement Project Final EIR/EIS. Prepared for City of Carlsbad and Army Corps of Engineers. June. City of San Diego, Clean Water Program. 1992. Technical Appendices for the Draft EIR for the proposed North City Water Reclamation Plant. September 11. City of San Diego. 1992. Rose Canyon Trunk Sewer Interceptor Line EIR. August. Earth Technologies. 1993, Cultural Resources Report for the Lomas Santa Fe Drive/San Diego Northern Railway Right-of-Way. December. KEA Environmental, Inc. 1996. Nobel Drive and 1-805 Interchange and Extension Project Draft EIR/EIS. Prepared for Federal Highway Administration and California Department of Transportation, District 11. January. Kornblatt, Helene B. 1989. Draft EIR for Oceanside-San Diego Commuter Rail Project. Prepared for North San Diego Transit Development Board. September. Ogden Environmental. 1995. Realignment of MiramarNAS DEIR/DEIS. Prepared for U.S. Department of Navy, SWDIV. August. Ogden Environmental. 1992. Downtown Encinitas/North 101 Corridor Specific Plan Draft Supplemental EIR. Prepared for City of Encinitas. November. San Dieguito River Park Joint Powers Authority. 1993. Final EIR for San Dieguito River Park Concept Plan. November 19. C:\TEMP\Rail Trail Biology Report by TJMdoc 46 Printed 01/08/99 6:11 PM ( Technical Study For Mitigated Negative Declaration Coastal Rail Trail Project Oceanside to Del Mar "Noise Impact Analysis" Prepared by Michael Brandman Associates, inc. March 23, 1998 Prepared for: Lead Agency City of Carlsbad 1635 Faraday, Carlsbad, CA Tel. (760) 602-4608 Responsible Agencies the Cities of Oceanside, Encinitas, Solana Beach and Del Mar Prepared with assistance by: CLM, Inc. P. O. Box 2286 Vista, CA 92085-2286 Tel. (760)941-9696 October 2000 NOISE COASTAL RAIL TRAIL PROJECT OCEANSIDE TO SAN DIEGO, CALIFORNIA Prepared for: Michael Brandman Associates Attn: Jason Brandman 15901 Red Hill Avenue, Ste. 200 Tustin, CA 92780 Date: March 23, 1998 17744 Sky Park Circle, Suite 210, Irvine California 92614 - Phone (714) 851-8609 • Fax (714) 851-8612 INTRODUCTION Noise: Noise is generally defined as unwanted or annoying sound that is typically associated with human activity and which interferes with or disrupts normal activities. Although exposure to high noise levels has been demonstrated to cause hearing loss, the principal human response to environmental noise is annoyance. The response of individuals to similar noise events is diverse and influenced by the type of noise, the perceived importance of the noise and its appropriateness in the setting, the time of day, the type of activity during which the noise occurs, and the sensitivity of the individual hearing the sound. Airborne sound is a rapid fluctuation of air pressure above and below atmospheric pressure. Sound levels are expressed as a ratio of the ambient sound pressure level compared to the sound faintly detectable by a young person with good auditory acuity. Because the human ear can hear over a very wide range of loudness, this ratio is expressed as a logarithm in system of units called decibels (dB). Most of the sounds we hear in the environment do not consist of a single frequency, but rather a broad band of frequencies differing in sound level. The intensities of each frequency add to generate the sound we hear. The method commonly used to quantify environmental sounds consists of determining all of the frequencies of a sound and weighting them according to the average human sensitivity in each portion of the noise spectrum. This is called "A" weighting, and the decibel level measured is called the A-weighted sound level (or dBA). Although the A-weighted sound level may adequately indicate the level of environmental noise at any instant in time, community noise levels vary continuously. Most environmental noise includes a mixture of noise from distant sources that create a relatively steady background noise in which no particular source is identifiable. A single descriptor called the Leq (equivalent sound level) is normally used to describe average noise levels of a stated time period. Leq is the 'equivalent' constant sound level that would have to be produced by a given source to equal the energy content of the fluctuating level measured. Another sound descriptor known as the Community Noise Equivalence Level (or CNEL) is defined as the "A" weighted average sound level for a 24-hour day. It is calculated by adding a 5 decibel penalty to sound levels in the evening (7:00 p.m. to 10:00 p.m.), and a 10 decibel penalty to sound levels in the night (10:00 p.m. to 7:00 a.m.) to compensate for the increased sensitivity to noise during the quieter evening and nighttime hours. The CNEL descriptor is commonly used in land use planning where it is applied to those sources that are preempted from direct control by local jurisdictions. Such sources include on-road vehicles, aircraft, trains, etc. Noise ordinances are established to limit how much noise a source amenable to local control may generate. CNELs are used to establish how much noise a site may receive and still be considered as having an acceptable noise exposure. Vibration; Vibration is generally defined as any oscillatory motion induced in a structure or mechanical device as a direct result of some type of input excitation. The object (either structure or machine) of interest typically has sufficient inertia so that (by Newton's First Law of Motion) its rest state is one of zero vibration. Input excitation, generally in the form of an applied force or displacement, is the mechanism required to start some type of vibratory response. Once an object begins to respond to an applied excitation, its natural tendency is to vibrate as some linear combination of its natural frequencies. A natural frequency is defined as the frequency at which an object will vibrate if set into motion and allowed to move freely. Any continuous system of particles (such as a building or motor assembly) will have an infinite number of natural frequencies, with each one adding to the overall response in a sea of ever-decreasing contributions. As the frequency of the excitation approaches one of the objects natural frequencies, the magnitude of the object's vibratory response (displacement) increases until, when the two frequencies are exact, a condition known as resonance arises. At resonance, the amplitude of the response of the object theoretically approaches infinity. The only natural mechanism available to temper the catastrophic effects of resonance is the object's own inherent level of damping. Little is currently known about the actual physical mechanisms that produce damping in an object, although a great deal is known about what effects it produces. Damping can be thought of as a type of 'drag' that is always present to some degree in an object and serves to remove energy from the vibrating system as it moves. Artificial damping is used routinely in mechanical devices and takes the form of shock absorbers, viscous isolation materials, and simple friction. In structures, damping is generally present within the material itself and hence is called 'material damping'. The cause of this damping is due to the interactions between the chemical bonds or lattice structures comprising the material. Noise Standards Train noise generation, either from engines, from the wheel/rail interface, or from ancillary activities such as train horns, is preempted from local control by federal statutes. Assessment of the noise implications of siting a bicycle trail adjacent to a railroad track would thus depend upon the noise exposure which a local jurisdiction considers acceptable for active recreational use. These noise standards are contained in the Noise Elements of the General Plan of each community along the rail trail alignment. The noise elements of general plans vary somewhat among the cities of Oceanside, Carlsbad, Encinitas, Solana Beach, Del Mar and San Diego, but all are generally based upon a statewide model element. The statewide model element defines four classes of acceptability for noise exposure as a function of various types of land uses as follows: clearly acceptable conditionally acceptable normally unacceptable clearly unacceptable Threshold levels of acceptability are stated in terms of the Community Noise Equivalent Level (CNEL). The state model element does not identify bicycle trails as a specific use, but does include "riding stables, water recreation facilities, and golf courses" among its active recreational land uses for which noise standards have been adopted. The state model element has some confusing patterns of acceptability overlap to allow for local discretionary action. The model element designates noise levels up to 75 dB CNEL as "normally acceptable" for active recreation, but also suggests levels above 70 dB CNEL may be "normally unacceptable." Most jurisdictions have modified the state recommendations to eliminate the overlap. The City of Encinitas has adopted a 70 dB CNEL cut-off between an acceptable versus unacceptable recreational use noise exposure. The City of San Diego has further simplified the noise exposure matrix to only two categories - compatible and incompatible. Figure 1 shows that 75 dB CNEL is the dividing line between a compatible versus incompatible active recreational use in San Diego. Solana Beach has incorporated the model element directly with its overlapping acceptability designation. The other jurisdictions along the route have not established standards for uses such as bicycle trails. They generally require usable outdoor space in residential environments to achieve 65 dB CNEL, but do not normally consider bicycle trails to be noise sensitive -- particularly since many such trails are within roadway rights -of -iway. i«iUUKii 1 CITY OF SAN DIEGO NOISE LAND USE COMPATIBILITY CHART Annual Community Noise Equivalent Level in Decibels Land Use 50 55 60 65 70 75 1. Outdoor Amphitheaters (may not be suitable for certain types of music. 2. Schools, Libraries 3. Nature Preserves, Wildlife Preserves 4. Residential-Single Family, Multiple Family, Mobile Homes, Transient Housing 5. Retirement Home, Intermediate Care Facilities, Convalescent Homes 6. Hospitals r 1. Parks, Playgrounds 8. Office Buildings, Business and Professional 9. Auditoriums, Concert Halls, Indoor Arenas, Churches 10. Riding Stables, Water Recreation Facilities 11. Outdoor Spectator Sports, Golf Courses 12. Livestock Farming, Animal Breeding 13. Commercial-Retail, Shopping Centers Restaurants, Movie Theaters 14. Commercial-Wholesale, Industrial Manufacturing, Utilities 15. Agriculture (except Livestock), Extractive Industry, Farming 16. Cemeteries •i ! ! .•.-.-. '-•' '-••'• COMPATIBLE The average noise level is such that indoor and outdoor activities associated with the land use way be carried out witli essentially no interference from noise. INCOMPA TIDLE The average noise level is so severe that construction costs to make the indoor en vironnicnt acceptable for performance of activities would probably be prohibitive. The outdoor envovanxat would be intolerable for outdoor activities associated with the land use. Source:Progress Guide and General Plan (Transportation Element). Baseline Noise Monitoring Baseline noise levels along the proposed trail alignment derive from passing trains and, in some cases, from nearby on-road traffic. Noise measurements were made at a number of representative locations in late November, 1997. Eight (8) sites were monitored ranging from Oceanside to the north to San Diego to the south. Setback from the track ranged from 35 feet to 250 feet. Table 1 summarizes the measurement results. A detailed narrative of the measurement site and the hour-by-hour readings is included in the appendix. At locations where the measurement site and track were at grade, noise levels ranged from 66 to 70 dB CNEL. At the two locations with extended setback and/or grade separation, the noise level was below 65 dB CNEL. Acceptability of noise for bicycle trail use was shown to be 70-75 dB GNEL in those jurisdictions where standards exist. Baseline measurements at all sites were generally within acceptable noise guidelines. Unless train activity were to change significantly, the bicycle trail would be considered a compatible use in terms of noise exposure. CNEL is not necessarily an ideal indicator of noise exposure from loud single events such as trains. Areas around train tracks have a few seconds of very loud noise and extended periods of only ambient noise. People are not annoyed by the average, but rather by the peaks. The data in Table 1 also show the single event peak and the median noise level near the tracks. Except for the grade-separated sites, peak events from a single loud pass-by reached 88 dB or more. Near at-grade crossings such as Cannon Road, the combination of train pass-by plus the signal crossing horn produced noise peaks of 96 dB at 50 feet from the source. There was some slight variation between Amtrak and Coaster trains, but most sites experienced one pass-by event as late as after midnight, and one peak before 6 a.m. On November 24, the midnight train was late with the peak event observed shortly after 1 a.m. While average exposures are generally consistent with noise standards for active recreational use, single events late at night or early in the morning clearly have the potential for sleep disturbance at noise-sensitive land uses situated along the tracks. NOISE MONITORING SUMMARY (dB[A]) Lte f 1 2 3 4 5 6 7 8 City Oceanside Carlsbad Carlsbad Encinitas Encinitas Encinitas* Del Mar San Diego* Dist. to Track 200' 100' 50' 130' 50' 250' 35' 65' 24-Hr. CNEL 67.6 66.3 69.6 69.7 69.2 57.3 70.0 62.5 Peak Hr. Leq 70 74 75 69 72 60 71 63 Peak Hr. T.max 88 95 96 88 94 82 96 88 Peak Hr. L50 60 60 65 61 64 60 60 57 = substantial grade separation See appendix for site description narrative and hour-by-hour noise measurement detail.