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HomeMy WebLinkAboutSP 112; La Costa Estates North; Specific Plan (SP)EMVIROIMMEIMTAL IMPACT RICK ENGINEERING COMPANY San Diego , California PREPARED FOR' LA COSTA LAND COMPANY COSTA DEL MAR ROAD CARLSBAD, CALIFORNIA ESTATES NORTH PREPARED BY' RICK ENGINEERING COMPANY 5620 FRIARS ROAD SAN DIEGO, CALIFORNIA APRIL 2, 1973 PROJECT NO 3956 TABLE OF CONTENTS A, The Environmental Impact of the Proposed Action 1. Project Description 2. Environmental Setting Without the Project (a) Topography (b) Land Use (c) Biology (d) Geology (e) Archeology (f) ' History 3. Environmental Impacts B. (a (b: (c: (d (e (f (g (h: (i 0 (k: Land Use Grading Biology Archeology History Drainage - Water Quality Traffic Noise Air Quality Utilities Community Services Any Adverse Environmental Effects Which Cannot Be Avoided Should The Proposal Be Implemented Mitigation Measures Proposed To Minimize the Impaot D. Alternatives To the Proposed Action E, The Relationship Betv\7een Local Short-Term Uses Of Man's Environment And The Maintenance And Enhancement Of Long-Term Environmental Productivity Paqe No, 1 1 5 5 6 7 8 9 9 9 10 11 11 11 12 13 13 14 14 16 18 20 22 Paqe No. F. Any Irreversible Environmental Changes Which Would 23 Be Involved In The Proposed Action Should It Be Implemented G. The Growth Inducing Impacts Of The Proposed Activity 24 Upon The Neighborhood And/Or Community H. The Boundaries Of The Area Which May Be 25 Significantly Affected By The Proposed Activity I. Certification Of Accuracy And Qualifications Of 26 Individuals Preparing Draft Environmental Impact Report J. list Of All Agencies, Organizations, Or Individuals 27 Consulted Appendix A - Species List 28 A. THE ENVIRONMENTAL IMPACT OF THE PROPOSED ACTION The proposed project. La Costa Estates North, Is a subdivision of 140 acres of undeveloped land. It is located southeast of Alga Road and west of San Marcos Creek Canyon in the southern portion of the City of Carlsbad. The developer. La Costa Land Company, is applying for appro- val of a specific plan and tentative map. The project site, as well as the surrounding area is part of the La Costa Master Development Plan. The plan was approved by the City of Carlsbad Planning Commission with Resolution No. 808 on July 25, 1972, and by the City Gbuncil with Resolution No. 2058 on August 15, 1972, and Ordinance No. 9322 on September 5, 1972. 1. PROTECT DESCRIPTION The development of La Costa Estates North will involve, con- struction of public streets and installation of improvements for the future construction of 90 single family residential units. Two additional large lots will be retained in their natural state. The residential areas of La Costa Estates North will be developed at an overall density of 0.64 dwelling units per gross acre. The proposed development contemplates a community comprised of single-family dwellings with a minimum lot size of one-half acre. These residential, as well as the natural lots, will be graded only where necessary to allow construction of streets. REV. 4/6 By initiating protective conditions and deed restrictions, the La Costa Land Company will insure that future construction of houses within the project will adhere to certain minimum standards. Such conditions as prior approval of structure and landscape plans, and the style, design, appearance and location of the structure, will insure a quality development. Alterations to the structure or to the landscaping also require approval. Conditions have also been established to insure maintenance of the lots. The remainder of the lots will be retained in their natural state. All cut and fill slopes created by grading of the streets will be planted to stabilize the slopes and reduce erosion. A 200 foot easement for the San Diego Gas and Electric power lines forms the northem boundary of the project and the southern boundary of the project is traversed from east to west by a 100 foot easement. These easements will be temporarily kept in their natural conditions until lots contiguous to them are developed, at which time they may be landscaped. Access to the property is at present from Alga Road, which runs in a north/south direction along the northwest portion of the project site. Access is also available from El Fuerte Street, located to the northeast of the site. Proposed for construction as part of this project are two access roads from Alicante Hills. These roads are Alicante Road, which will enter from the southwest, and Candil Way, which enters from the southeast protion of La Costa Estates North. A system of aesthetically designed streets and cul-de-sacs -will provide access to all lots within the development. An access road, south of La Costa Estates, is proposed to connect the Alicante Hills project with the La Costa South development. This road, designed for use only in emergencies, will cross San Marcos Creek. An 18 inch low flow pipe will be used at the grade crossing and will be covered by 2 or 3 feet of fill. The proposed road will be graded 24 feet wide and improved to a 20-foot width. Community services are located on both sides of San Marcos Creek. There will be no need for this road to be used as part of the circulation system; this road will be used only as an access to utilities and is designed as such to discourage public usage. This road will be on a public utility easement maintained by the City of Carlsbad. Utility service will be provided to all lots within La Costa Estates North. The sewer system for the proj ect will be connected to an existing sewer main in the La Costa Golf Course. Water service will be provided from an existing main which runs south in El Fuerte Street from the La Costa Meadows Unit No. 4; Gas and electric service will also be provided from within La Costa Meadows, just north of the proposed project. All utilities, with the exception of the existing power lines within the San Diego Gas and Electric easements, will be placed underground. ENVIRONMENTAL SETTING WITHOUT THE PROTECT The proposed project. La Costa Estates North, is located in the southem portion of the City of Carlsbad. The property is situated west of San Marcos Creek Canyon and southeast of Alga Road between two San Diego Gas an'd Electric easements which form the northern and southem boundaries of the property. a. Topography The project site is a 140 acre irregulary shaped parcel of land. The topography is characterized by broad round-topped ridges. Two large gullies drain the site toward the south. One gully is located at the center of the site and the other is located on the westem boundary of the site. Elevation on the site varies from 480 jeet at the north-central portion of the site to 110 feet at the southwest corner. b. Land Use There are a number of dirt roads on the project site. These roads provide access to the San Diego Gas and Electric power lines which traverse the site. The area has not been used extensively by off- road vehicles and large areas remain in a natural state. The project site is bounded on the north by La Costa Meadows Unit no. 1, a residential development of single-family units (zoned R-1-15,000). This development has already been completed. To the northwest of the proposed site are located a water tank maintained by the Carlsbad Municipal Water District and a lot for a future sub-station of the San Diego Gas and Electric Company. The land south and east of the project site is currently undeveloped (zoned PC RDM), but is planned for development as part of the La . Costa Development. These undeveloped areas are known as Alicante Hills and Alga Hills respectively. The site is bounded on tha^TOftatVDy San Marcos Creek Canyon, a rugged natural area. Along the stretch, which extends upstream to Ranch Santa Fe Road, San Marcos Creek flows through a spectacular deep narrow canyon. The "V" shaped gorge is 200 to 300 feet deep and has canyon walls as steep as 1.5 : 1 (horizontal to vertical) and steeper, c. Biology The entire project site is characterized by vegetation composed of coastal sage scrub. A brushfire burned over the project site in Sep- tember 1970. The coastal sage scrub vegetation is characterized by Califomia sage brush, Califomia buckwheat, laural sumac, black sage, and lemonade berry. Two endemic species, or species restricted to a particular region, located on the site are the mission manzanita and the California adolphia. The coastal sage scrub generally supports a varied animal pop- ulation which includes small animals and rodents, larger vertebrates including predators, reptiles, and a variety of birds. The principal small mammals and rodents observed, or normally expected to be found in the coastal sage scrub are: ground squirrel, cottontail rabbit, jackrabbit, pocket mouse, and other rodents such as wood and Kangaroo rats. The larger vertebrates observed, or for which direct evidence was found, include coyote, grey fox, badger, striped skunk, and spotted skunk. Other larger vertebrates expected in this habitat include raccoon and weasel. No reptiles were observed during the biological investigation of the site because of their restricted activity during the winter months. Reptiles to be expected in this habitat include rattlesnakes, gopher, garter and King snakes, striped racers and several types of lizards, toads, and frogs. Bird species observed in the coastal sage scrub include common bushtit, red-shafted flicker, horned lark, Anna's hummingbird, killdeer, westem meadow lark, California quail, common raven, roadrunner, loggerhead shrike, swallow, California thrasher, brown towhee, vireo, wrentit, and various sparrows. Additional species expected to be observed on this site include preditory birds such as Cooper's hawk, red-tailed hawk, sparrow hawk, Swainson's hawk, burrowing owl, and the white-tailed kite. No endangered species of plant or animal life were observed on the project site and none are known to be dependent upon the area, d o Geology The project site is underlain by the Jurassic Black Mountain Volcanics, which are primarily fine-grained extrusive and intrusive igneous rocks, grey-green in color, and of andesitic composition. Typically, these volcanic rocks are closely jointed and weathered, which greatly facilitates surface excavation. The soil conditions encountered were basically a shallow layer of gravelly clayey silt topsoil overlying the volcanic rock. This volcanic rock has in the upper more we.athered zones, decomposed to a yellow-brown silty clay. Below the loose topsoil layer the soil was generally firm with firmness increasing with depth. There are no adverse geological conditions within the project area which would preclude development of the project. No evidence of major subsidence or mudflows was observed on the site and none are anticipated to occur during development. The only potentially active fault near the site is the Rose Canyon fault, located eight miles southwest under the Pacific Ocean. No inactive faults were identifed during the soil investigation of the site, e. Archeology An archeological investigation of the project site revealed the pre- sence of no archeological resources. An examination of site records at the Museum of Man revealed no sites were ever recorded on the project site. 8 f. History A historical investigation of the project site did not reveal the existence of any sites of historical significance. 3. ENVIRONMENTAL IMPACTS a. Land Use The proposed project. La Costa Estates North, will allow 90 families to move into a modem residential development which uti- lizes the best principles of land use and design. The maximum allowable density for this development is 3.5 dwelling units per acre. The proposed tentative map and specific plan indicate a planned density of only 0_»6 4 dv/elling units per acre. The density of the proposed project is consistent with the allowable densities indicated on the La Costa Master Development Plan, which was approved by the City of Carlsbad. b. Geology-Grading The nature of the soils found on La Costa Estates North are such that they can support the proposed development. Grading of the lots will occur only where necessary to allow construction of streets. Cut and fill slopes resulting from grading of streets will be planted to stabilize the slopes and reduce erosion. Future grading will take place when graded pads for residential units are constructed by individual owners. REV. 4/6 Grading on this site will change the natural land form of the project. The visual impact of the earth exposed by grading will remain only until slope planting is established. No adverse effects should result from grading of the site in accordance with accepted engineering practices, c. Biology Development of the project will require the removal of all vege- tation from the graded portions of the project site. Accompanying this loss of vegetation will be the displacement of the present bird and animal populations which currently occupy those areas of the site. This wildlife will be displaced either to undeveloped areas on the site or undeveloped areas off the proposed site. Much of the project site will be retained in its natural state. The large residential lots and the natural lots will provide a suitable habitat for the displaced wildlife. Animals which can tolerate the presence of humans can remain on the .site. The two San Diego Gas and Electric easements will serve as temporary homes for the wildlife until they are land- scaped. The wildlife which migrates into the San Marcos Creek Canyon will find a permanent refuge, as the canyon will never be developed. No endangered species of plants or animals will be affected by the proposed project. New species of plants will be introduced into the area through landscaping of the project site. 10 d. Archeology It has been determined that the proposed site offers no archeological resource of any significant value, thus there will be no archeological impact resulting from the development of the site. e. History It has been determined that no historical sites are located on this proposed development site. f. Drainage-Water Quality The drainage of the project site will change from overland sheet flow and flow in natural channels to flow in street gutters and in underground storm drainage systems. Design of the drainage system for the project will be in accordance with current standards of the City of Carlsbad. Since a concentrated discharge from a storm drain could cause excessive erosion on the walls of San Marcos Creek Canyon, the storm drain system will be designed to transport water to the south away from the canyon walls. Runoff from the project site will increase with development. As most of the site will be retained in its natural state, the increased^ runoff will be negligible. The total drainage area of Batiquitos Lagoon is 52.3 square miles. The project site represents less than 0.5 per cent of the drainage area, so the effect of the increased runoff on the 11 downstream environment will also be negligible. There will be a minimal decrease in water quality because of runoff from the project site. This decrease: in water quality is caused by various imparities such as hydrocarbons, fertilizers, dissolved minerals and chemicals which are associated with runoff from urban developments. This decrease in water quality is typical of urban development and cannot be eliminated, g. Traffic Traffic in the La Costa area will increase as a result of the pro- posed development. The project site is served by one major route. Alga Road. Alga Road is designated on the Circulation Element of the San Diego County General Plan as a major road. This road will be 102 feet wide and will carry an estimated ultimate traffic volume of 20,000 to 30,000 vehicles per day. From Alga Road, traffic will travel east or west to El Camino Real or Rancho Santa Fe Road for further distribution. The circulation system of La Costa has been designed to accommo- date the anticipated traffic increase resulting from the proposed development. The amount of traffic generated by La Costa Estates North will be dependent on the nature of the residents of the project. Residents will be primarily recreation-oriented, falling into several broad groups including retired, second-home owners, and single home owners. Because of the various types of homeowners, accurate 12 traffic prediction would be difficult. An estimate of the increased traffic can be made using an average of eight trips generated per unit per day, resulting in an estimated 720 trips per day. The proximity of commercial and recreational facilities within the La Costa De- velopment would result in a shortening of the average trip length. Traffic studies may be conducted to evaluate the changing conditions of the La Costa street network as the need arises. h. Noise / The existing noise level in the La Costa Estates North area is low. Traffic on El Fuerte Street, Babelonia Street, and Alga Road is the predominate noise source for the project, but because of low traffic volume on these roads, the noise impact on the proposed development will be insignificant. Aircraft overflight noise will occur occasionally, but it is not considered to be a significant factor. The development is outside nonnal departure and landing paths for any existing or planned airport. Noise from the contractors equipment and other construction noises cannot be eliminated. This noise will be of a temporary nature, lasting only until the project is completed. i. Air Quality The increase in air pollution resulting from this project will be minimal. The main source of air pollution created by the project will be from motor vehicles. In comparison with the total vehicle emissions in the Carlsbad area, auto emissions and the resulting pollutants from this project will be insignificant because of the small number of vehicles involved. The quality of emissions from vehicles cannot be controlled by the developer, but are regulated by State and Federal standards. Pollutants from the exhaust of the contractor's equipment will be within existing emission standards and will be of a temporary nature, j. Utilities Utility service will be provided to all lots. Sewer service will be provided by the Leucadia County Water District. The sewer system for the project will be connected to an existing sewer main in the La Costa Golf Course. • Water service will be provided by the Carlsbad Municipal Water District. Water service will be provided by an existing main which runs south in El Fuerte Street from the La Costa Meadows Unit No. 4. Gas and electric service, which will be provided by San Diego Gas and Electric, is also located in El Fuerte Street. All utilities will be placed underground to eliminate their visual impact, ko Communitv Services La Costa Estates North is located within the Escondido Union High School District, The developer is working with the school district to insure the provision of adequate facilities for students from the project. 14 La Costa Estates North is also located within the Richmar Elementary School District. Elementary school sites are being provided within the framework of the Master Development Plan for La Costa. Sites for future construction of eight elementary schools are included within the Master Plan. Two junior high school sites will also be provided. The Carlsbad Police Department services all areas within the corporate limits of the City of Carlsbad. At present, one patrol car Is on duty 24 hours a day in the La Costa area. This patrolman would also patrol the proposed site. The City of Carlsbad Fire Department has a substation in La Costa which will serve the proposed project. 15 B. ANY ADVERSE ENVIRONMENTAL EFFECTS WHICH CANNOT BE AVOIDED SHOULD THE PROPOSAL BE IMPLEMENTED The unavoidable adverse environmental effects resulting from the development of La Costa Estates North are typical impacts resulting from construction of a residential development. There are no unique adverse environmental effects which would result from development of the project. The adverse environmental effects of La Costa Estates North are: 1. To decrease the amount of undeveloped land in the City of Carlsbad by 140 acres. 2. A minimal decrease in water quality associated with urban areas (hydrocarbons, fertilizers, chemicals, dissolved minerals, etc.) 3. To increase traffic on El Fuerte Street, Alga Road, and other roads. 4. A minimal increase in air and noise pollution associated with the increased traffic. 5. A temporary increase in noise associated with construction of the project. 6. A minimal increase in the demand for public utilities. 7. To decrease the available wildlife habitat in the area and to displace wildlife from the graded portions of the project site. S Beneficial environmental eflects resulting form the development of the proposed project will be: 1. To provide 90 homes for families in the City of Carlsbad. These homes will be located in the La Costa Planned Develop- ment, which includes provisions for recreational, service, educational, and commercial facilities. 2. An increased tax base in the City of Carlsbad. 16 3. An improvement of access routes for fire and police pro- tection and an expansion of water service to the project site and the surrounding area for fire protection. . 4. The long-term stabilization of the terrain resulting in reduced erosion of the project site. 5. A substantial increase in the number of trees on the project site. 6. An overall increase in vegetation on the project site. 17 C. MITIGATING MEASURES PROPOSED TO MINIMIZE THE IMPACT Various measures will be taken to minimize the environmental effects of the proposed development. The most significant measure that will be taken will be to confine the proposed project to the area west of San Marcos Creek. The La Costa Land Company intends to make San Marcos Creek Canyon (about 150 acres) availabe for preservation for future generations. By initiating protective conditions and deed restrictions, the La Costa Land Company will insure that future construction within the project will adhere to certain minimum standards. Conditions such as prior approval of structure or landscape plans, and the style, design, appearance and location of the plans will insure a quality development. Other conditions include the exclusion of ex- temal television antennas, trailers, temporary building, boats, and signs. Grading of lots will only take place where necessary to allow construction of streets. The natural vegetation of the area will be preserved in the two park lots and in the 90 natural residential lots. The retention of the San Diego Gas and Electric easements as open space areas will provide a corridor for access of wildlife through the development to San Marcos Creek. An investigation of the project site was conducted to determine the existence of archeological or historical resources on the site. No historical sites were discovered and no archeological sites were uncovered. 18 All utilities, except the power lines in the San Diego Gas and Electric easement, v^ll be placed underground to eliminate their visual impact. Additional mitigating measures are the result of the total La Costa Development Plan. Over thirteen percent of La Costa can be classified as Open Space. Some of this area is devoted to specific recreational usage (the golf course, country club, spa, and riding facilities), while most is left undeveloped to be part of an area-wide hiking, equestrian, and picnic resource for the residents of the area. La Costa also has provided approximately 200 acres of land for commercial usage, including 110 acres for a regional shopping center. 19 D. ALTERNATIVES TO THE PROPOSED ACTION Many altematives are always available regarding land use decisions. The determination of the density of dwelling units and their relationship to transportation facilities, utilities, community services, and other land uses involves an infinite number of variables. One altemative which is always available is to leave the property under private ownership in its undeveloped condition. The property was originally purchased with the intent of developing the land. Additional funds were expended in the areas of engineering, planning, and City fees and assessments. The developers, unable to recover their investment from the property, would suffer financial loss. None of the environmental impacts discussed in this report would occur if the "no-project" alternative is selected. However, other impacts would occur to the site through human and vehicular activity on the site. This activity would result in displacement of wildlife and disruption of the vegetation. A second alternative is public acquisition of the site to either retain it as an open space area or develop it as a park. The San Marcos Creek Canyon located to the north of the project is unusually steep, rugged, and wild (particularly for a feature located this close to the coast). The developer, recognizing the uniqueness of San Marcos Creek Canyon, has designed the total La Costa development to allow retention of the Canyon in its natural state. No public agency has expressed the 20 desire to purchase the project site for retention as open space or development as a park. There is nothing unique about the project that would require its preservation. Any other form of residential development would have impacts similar to the proposed project. Development at a higher density would place a greater demand on utilities and public services, and more traffic would be generated. Development at a lower density would require less utilities and public services, and less traffic would be generated. Commercial or industrial development of the project site would not be consistent with the planned land use of the City of Carlsbad or the La Costa Master Development Plan. 21 E. THE RELATIONSHIP BETWEEN LOCAL SHORT-TERM USES OF MAN'S ENVIRONMENT AND THE MAINTENANCE AND ENHANCEMENT OF LONG-TERM ENVIRONMENTAL PRODUCTIVITY The basic long-term effect of the proposed project on the en- vironment is the loss of a limited amount of natural, undeveloped land on the graded portions of the site. This loss is irreversible. Accom- panying this loss would be the removal of a wildlife habitat. There is nothing unique about the project site which would require its preservation in its natural state. The project will preserve in their natural state two park lots and 90 natural residential lots. The boundaries of this project were established to prevent encroach- ment into the San Marcos Creek Canyon. Because the San Marcos Creek Canyon is unusually steep, rugged and wild (particularly for a feature located this close to the .coast), it will not be developed . The La Costa Land Company intends to make the canyon area (about 150 acres) available for preservation for future generations. The approval of this project is the commitment of the project site to residential use. The project will permit a maximum of 90 families to move into a modern, adequate housing development (if the lots are developed to the maximum density allowed by the tentative map). The predicted growth of the entire San Diego County area requires further residential development. Until growth of the population can be controlled, either expansion or congestion must occur. 22 F. ANY IRREVERSIBLE ENVIRONMENTAL CHANGES WHICH WOULD BE INVOLVED IN THE PROPOSED ACTION SHOULD IT BE IMPLEMENTED The direct environmental effect of the proposed project is the commitment of 140 acres undeveloped land to urbanization. The property will be altered to accommodate residential housing and in the process its physical and biological characteristics will be changed. The indirect effect of the project is the construction of housing units and its resultant consumption of building materials and natural resources. Public services and utilities will have greater demand placed upon them. 23 G. THE GROWTH INDUCING IMPACTS OF THE PROPOSED ACTIVITY UPON THE NEIGHBORHOOD AND/OR COMMUNITY The growth inducing aspects of the proposed La Costa Estates North project reflect an orderly growth of residential land adjacent to already developed La Costa residential property. Further growth inducements occur on properties adjoining the subject property in the same manner as the successful La Costa Development has already induced the development of this property. Development of properties now occuring to the northeast and south, notably the Lake San Marcos project and the Village Park project in the Encinitas area, also have grov^rth inducing effects on the surrounding property. The rugged terrain to the north and east of the La Costa development limit growth in these directions. Denial of this project would not appreciably diminish the present growth inducements in this area. 24 H. THE BOUNDARIES OF THE AREA WHICH MAY BE SIGNIFICANTLY AFFECTED BY THE PROPOSED ACTIVITY The boundaries of the areas which are affected by the project are dependent on the environmental effect being considered. The effects of traffic generated by this project and its air and noise pollution problems are probably limited to a three mile range. Beyond that limit, the traffic is sufficiently dispersed so that the effects would be negligible. The effects of the project on the biological component of the environment will generally be limited to the immediate vicinity of the project site, but may range as far as the Batiquitos Lagoon. The area affected by the changed visual appearance of the project site will be limited by the ridges to the north, south and east. 25 I. CERTIFICATION OF ACCURACY AND QUALIFICATION OF INDIVIDUALS PREPARING DRAFT ENVIRONMENTAL IMPACT REPORT The information contained within this analysis is certified to be accurate and correct to the best of my knowledge and belief, and reflects the environme'ntal impacts associated with La Costa Estates North. This report was prepared by Jeffrey Roy Lundstrom, Environmental Consultant for Rick Engineering Company, consultant to the applicant. La Costa Land Company. 26 J. LIST OF ALL AGENCIES , ORGANIZATIONS . OR INDIVIDUALS CONSULTED David D. Smith and Associates, Environmental Consultants Walter R. Odening, Ph.D., Botany David D. Smith, Ph. D., Geology Ronald V. May, B. A., Anthropology Benton Engineering, Inc., Applied Soil Mechanics-Foundations Rick Engineering Company, Planning Consultants and Civil Engineers La Costa Land Company San Diego Museum of Man Escondido Union High School District Richmar Union Elementary School District City of Carlsbad Planning Department Fire Department Police Department County of San Diego Traffic Department Planning Department Zoning Department Leucadia County Water District Carlsbad Municipal Water District 27 APPENDIX A SPECIES LIST Shmb, tree, and animal species observed (or to be expected based on habitat - shown with asterisk) on the La Costa development property are listed. The herbaceous dicot and grass species were not included in this survey. Shmbs and Trees California adolphis * Broom baccharis bladder pod * Chaparral broom California buckwheat *beavertail cactus * coastal barrel cactus * cattail . San Diego ceanothus *wartystem ceanothus chamise wild cucumber chaparral currant deerweed elderberry California encelia filaree * California fuschia haplopappus wild honeysuckle lemonade berry eastwood manzanita mission manzanita monkey flower *mule fat coast live oak scmb oak * pepper tree California poppy * rattle weed redberry * rock rose Adolphia californica Baccharis sarothroides Isomeris arborea Baccharis pilularis consanguinea Eriogonum fasciculatum Opuntia sp. Echinocactus viridescens Typha sp. Ceanothus cyaneus Ceanothus verrucosus Adenostoma fasciculatum Marah macrocarpus Ribes malvaceum Lotus scopavius Sambucus mexicana Encelia californica Erodium sp. Zauschneria californica Haplopappus venetum lonicera subspicata Rhus integrifolia Arctostaphylos glandulosa Xylococcus bicolor Mimulus puniceus Baccharis viminea Quercus agrifolia Quercus dumosa Shinus molle Eschscholzia californica Astragalus sp. Rhamnus crocea Heliaiithemum scoparium 28 Shmbs and Trees (continued) bush me black sage * white sage Califomia sagebrush * Spanish bayonet Spanish dagger laurel sumac •thistle tree tobacco toyon wire grass Cueoridium dumosum Salvia mellifera Salvia apiana Artemisia californica Yucca whipplei Yucca schidigera Rhus laurina Cynareae gen.sp. Nicotiana glauca Hetermoles arbutifolia Junucus acutus Introduced: eucalyptus tecate cypress Eurpoean olive * sycamore willow Eucalyptus sp. Cu pres sus forbesii Olea europaea Platanus racemosa Salix sp. Small Mammals and Rodents * southern pocket gopher .* pocket mouse cottontail & brush rabbit jackrabbit * kangaroo rat * shrew ground squirrel other rodents Larger Mamals badger ^ bobcat coyote mule deer * grey fox * raccoon spotted skunk striped skunk Themys bottae Perognathus sp. Sylvilagus sp. Lepus californicus Dipodomys sp. Sorex sp. Otospermophilus sp. Peromyscus sp. Neotoma sp. Microtus sp. Taxidea taxus Lynx rufus Canis latrans Odocoileus hemianus Urocyon cinereoargenteus Procyton lotor Spelogale putorius Mephitis mephitis 29 Reptiles * frogs * frogs * coast horned lizard * southem alligator lizard * westem fence lizard * skunk * garter snake * gopher snake * kingsnake * rattlesnake * striped racer * toads * toads hyla sp. rana sp. Phrynosama coronatum Gerrhonotus multicarinatus Sceloparous occidentalis Eumeces sp. Thamnophis sp. Pituophis melanoleucus Lampropeltis getulus Crotalus sp. Masticophis lateralis Bufo sp. Scaphiopus sp. Birds mountain blue bird common bushtit * house finch red-shafted flicker * green heron Anna's hummingbird killdeer * kill bird horned lark western meadowlark * Say's phoebe California quail common raven road runner loggerhead shrike sparrows * starling swallow California thrasher brown towhee vireo wrentit Sialia currucoides Psaltripams minimus Carpodacus mexicanus Colaptes cafer Butorides virescens Calopte anna Charadrius vocifems Tyrannus sp. Eremophila alpestris Sturnella neglecta Savornis saya ' ' Lophortyx californicus Corvus corax Geococcyx californianus Lanius ludovicianus Zonotrichia sp., melospiza sp., and others Stumus vulgaris Hirundinidae gen.and sp. Toxostoma redividum Pipilo fuscus Vireo sp. Chamaea fasciata Hawks, Owls,and Other Predatory Birds.Included: Cooper's hawk marsh hawk red-tailed hawk sparrow hawk Swainson's hawk Accipiter cooperi Circus cyaneus Buteo jamaicensis Falco sparverius Buteo swainsoni 30 Birds (continued white-tailed kite Elanus leucums burrowing owl Speotyto cunicularia 31 Affidavit of Publication STATE OF CALIFORNIA County of San Diego ss. Patri«la Maaniiig , says that she is the Principal Clerk of The Carlsbad Journal, a weekly newspaper of general circulation, printed and published in the City of Carlsbad, County of San Diego, and State of California, and that the notice of which the 0** lOtk annexed is a true copy, was published tinnes in said newspaper, commencing on the „ day of . .M?3[. , A.D. 19 ....Tl, namely on the following dates: NOTICE OF PROPOSED ENVIRONMENTAL ^ IMPACT REK»T HEARING ; NOTICE IS HEREBY GIVEN that the Planning Com- fbllowing described property: Beint portions of Sections 25 and 36, Township 12, Being^poni""* Dortions of Section 30, JtikK'sirW 3 west. S.B.M...inthe City ,I?^SyofSnDiego.StateofCaUf.rnia. CARLSBAD CITY PLANNING COMMISSION Pub: May 10, Mayl0t]a,1973 Legal Decree No. 172342 Signed at Carlsbad, California this 1?*^...... day of -JdasT „ 19 .13 I hereby declare under penalty of perjury that the foregoing Is true and correct. ^^^^^>^Z:e^C:CiC^y^,^^^ PrlncIpqiJ^lerlc Affidavit of Publication STATE OF CALIFORNIA County of San Diego ss. Patriiyia Manning , says that she is the Principal Clerk of The Carlsbad Journal, a weekly newspaper of general circulation, printed and published in the City of Carlsbad, County of San Diego, and State of California, and that the notice of which^the annexed is a true copy, was published times in said newspaper, commencing on the _ day of .teil , A.D. 19 .7J__. namely on the following dates: CO., has srtiiatt#^i^B*^|l ii^^ to the City of Carlii<rf iai«6(ftita , ^njlng:» t^neirt Iftr »Iq^lffeiitNra^ft^^ tor M FesiaenUal Mi m 140 a^res jS|y|)jSb^^ J|Bia^(» property geM Rd; 4 oorthw08t of Saa MMSeot f «»y©B^ La Costa, A prelialBary ett*iron«i^lB|p^ filed Witt the Cfty of Girttti^ and wUl availaWe tor W>4 4^ iwtil May 5, 1973. AH comiaeBts ^ be siibiiiltted to the Plattdng Dir«ctor in iir|tiiig. (RLSBAD CIT^; PI^MOHKiJ COMMSSaON Date: 4/23/73 Pnb: Afmat, 1973 April 26,1973 Legal Decree No. 172342 Signed at Carlsbad, California this _...26 — day of April _ _ ^ ,9 73 I hereby declare under penalty of perjury that the foregoing is true and corr^t. Principal Clerk A. THE ENVIRONMENTAL IMPACT OF THE PROPOSED ACTION The proposed project. La Costa Estates North, is a subdivision of 140 acres of undeveloped land. It is located southeast of Alga Road and west of San Marcos Creek Canyon in the southem portion of the City of Carlsbad. The developer. La Costa Land Company, is applying for appro- val of a specific plan and tentative map. The project site, as well as the surrounding area is part of the La Costa Master Development Plan. The plan was approved by the City of Carlsbad Planning Commissicnwith Resolution No. 808 on July 25, 1972, and by the City Gbuncil with Resolution No. 2058 on August 15, 1972, and Ordinance No. 9322 on September 5, 1972. 1. PROTECT DESCRIPTION The development of La Costa Estates North will involve, con- struction of public streets and installation of improvements for the future construction of 90 single family residential units. Two additional large lots will be retained in their natural state. The residential areas of La Costa Estates North will be developed at an overall density of 0.64 dwelling units per gross acre. The proposed development contemplates a community comprised of single-family dwellings with a minimum lot size of one-half acre. These residential, as well as the natural lots, will be graded only where necessary to allow construction of streets. REV. 4/6 f, History A historical investigation of the project site did not reveal the existence of any sites of historical significance. 3. ENVIRONMENTAL IMPACTS a. Land Use The proposed project. La Costa Estates North, will allow 90 families to move into a modem residential development which uti- lizes the best principles of land use and design. The maximum allowable density for this development is 3.5 dwelling units per acre. The proposed tentative map and specific plan indicate a planned density of only 0.64 dv/elling units per acre. The density of the proposed project is consistent with the allowable densities indicated on the La Costa Master Development Plan, which was approved by the City of Carlsbad, b. Geology-Grading The nature of the soils found on La Costa Estates North are such that they can support the proposed development. Grading of the lots will occur only where necessary to allow construction of streets. Cut and fill slopes resulting from grading of streets will be planted to stabilize the slopes and reduce erosion. Future grading will take place when graded pads for residential units are constructed by individual owners. REV. 4/6 CITY OF CARLSBAD DATE: '-73 APPLICATION FOR ADOPTION OF SPECIFIC OR MASTER PLAN SPECIFIC PLAN NO.' f/t^ FILING FEE RECEIPT N MASTER PLAN NO. (for official use) « « 5P 5f * * « * « * * 1; * * « « « « « se « # I. A REQUEST IS HEREBY MADE TO ADOPT A Specific Plan (Specific or Master Plan) FOR PROPERTY DESCRIBED AS: (exact legal description) IL Being portions of Sections 25 and 36, Township 12, South Range 4 West, and portions of Section 30, Townhsip 12, South, Range 3 W est, s.B.M. in the City of Carlsbad, County of San Diego, State of California. THE PROPERTY DESCRIBED HEREIN IS ADDRESSED AS Rancho La Costa Alfil Way (Name of Street) ( I, We) AND IS LOCATED ON THE east SIDE OF Alga Road (Name of Street) (North, South, East, West) BETWEEN Babilonia Street AND (Name of Street) _The undersigned state that I am ( I AM, WE ARE } the agent for the owners of the property described herein and hereby (Owner/Owners) give "^y "(My, Our) _authorization to the filing of this application; Name Irving Roston (Typed or ^inted a^shown on Recorded Deed) Signature: Jf ^^^y Name: ( Typed or Printed as shown on Recorded Deed) Signature: Name: (Typed or Printed as shown on Recorded Deed) Signature: Name: n"yped or Printed as snown on Recorded Deed) Sinnaturo: Specific/Master Plan AP-^Iication Page Tv/o III. EXISTING ZONE OF SUBJECT PROPERTY PC_ HAS A MASTER PLAN BEEN APPROVED? (^^eT^ Ordinance No. 9822 DATE:_ No. QWNER AND/OR OWNER'S AUTHORIZED AGENT AFFIDAVIT STATE OF CALIFORNIA) COUNTY OF SAN DIEGO) CITY OF ) SS Irving Roston I> (we), (name) declare to the best of (my, our ) and correct under the penalty of purjury: being duly sworn depose and my knowledge that the foregoing is true EXECUTED AT DATE Carlsbad (City) March California (State) 30 iDiyT (Month) APPLICANT, OWNER AND/OR OWNER'S AUTHORIZED AGENT: 1973 (Year) LA COSTA LAND COMPANY Irving Roston (Print Name) I^ignatm^e Costa Del Mar Road (Mailing Address) Carlsbad, Califomia 92008 (City and State) (Zip) ( ) (714) 753-1181 (Area Code) (Telephone Number) SUBSCRIBED AND SWORN TO BEFORE ME THIS SD H DAY OF Pn^/^^f/^ /9 73 (Notary Public) OFFICIAL SEAL KOMRY FdSLIC - CAMnSNIA AUROf^A E- CUNZY SAN DiEuO roUNlY MY COMMISSION EXFiRLS AfKiL 22, 1975 Ej