HomeMy WebLinkAboutEA 11-13; 6607 CMP Replacement Program; Administrative Permits (ADMIN)PLANNING DB>ARTM
BM^YASEESEMBUPORaiYPRaBCTS
PROCBXJRE AND APPUCATION
WHATisan Birly Assessment?
It is an early, informal review of your Qty project by the Panning Department prior to a formal application
submittal. The &rly Assessment review is required for all Qty projects.
WHAT you need to provide:
• Application form (signed by the project engineer and the Deputy Qty Bigineer),
• Three (3) sets of your site plan and/or other exhibits (folded to SVi x 11) with sufficient detail to allow staff to
adequately review your proposed project, and,
• Any other information that you think will contribute to staffs understanding of your proposal.
WHEREto submit:
Your application should be submitted at the Panning Department Development Sfervioes Counter.
HOWyota-application will be processed:
After a submittal is made, a staff planner will be assigned to take your project to their respective staff meetings
for review. A written response to your submittal (in memo form) will be prepared following the staff meeting
review and should t>e received by you within thirty days after the review date. "Pie response memo will address
(at a minimum) the foiiowing:
• anticipated permit and processing requirements,
• antldpated CH3A requirements, and,
• identification of any major project issues that can be identified based upon the Birly Assessment submittal.
The Earlv Assessment does not represent an in-depth analvsis of vour proiect. The completeness and accuracy of
vour submittals will dictate the oualitv of vour project's farlv Assessment response. Additional issues of oonoern
mav be raised after vour permit application package is formally submitted and processed for a more specific and
detailed review. Also, additional and/or different issues of oonoern mav arise with the passage of time and
changing drcumstanoes, regulations eta Therefore, the issues and reguirements identified in the farlv
Assessment response memo might change if there is a long lead time between the farlv Assessment response
and the submittal of a formal proiect application.
A copy of your Birly Assessment will be kept on file in the Panning Department. Should you submit a formal
application in the future, the Panning Department will make every effort to assign the application to the same
staff planner who processed your Birly Assessment application.
Early Assessment For City Projects - Revised 10/12/06 Page 1 of i
CITY OF
CARLSBAD
PROJECT THREAT
ASSESSMENT WORKSHEET
FOR DETERMINATION OF
CONSTRUCTION SWPPP
TIER LEVEL
E-32
Development Services
Land Development Engineering
1635 Faraday Avenue
760-602-2750
www.carlsbadca.gov
Project Storm Water Threat Assessment Criteria*
Construction
SWPPP Tier
Level
Sionificant Threat Assessment Criteria
Tiers
• My project Includes clearing, grading or other disturbances to the ground resulting in soil
disturbance totaling one or more acres including any associated constmction staging,
equipment storage, stockpiling, pavement removal, refueling and maintenance areas; or,
• My project is part of a phased development plan that will cumulatively result in soil disturbance
totaling one or more acres including any associated constmction staging, equipment storage,
refueling and maintenance areas; or,
• My project is located inside or within 200 feet of an environmentally sensitive area (see city ESA
proximity map) and has a significant potential for contributing pollutants to nearby receiving
waters by way of storm water runoff or non-storm water discharge(s).
Tiers
Moderate Threat Assessment Criteria
Tier 2
My project does not meet any of the significant threat assessment criteria described above and
meets one or more of the following criteria:
• Project requires a grading plan pursuant to the Carlsbad Grading Ordinance (Chapter 15.16 of
the Carlsbad Municipal Code); or,
• Project will result in 2,500 square feet or more of soils disturbance including any associated
construction staging, stockpiling, pavement removal, equipment storage, refueling and
maintenance areas and project meets one or more of the additional following criteria:
• located within 200 feet of an environmentally sensitive area or the Pacific Ocean; and/or,
• disturbed area is located on a slope with a grade at or exceeding 5 horizontal to 1 vertical;
and/or
• disturbed area is located along or within 30 feet of a storm drain inlet, an open drainage
channel or watercourse; and/or
• constmction will be initiated during the rainy season or will extend into the rainy season
(Oct 1 through April 30).
Tier 2
Low Threat Assessment Criteria
^ My project does not meet any of the significant or moderate threat criteria, is not an exempt
permit type (see city's list of permit types exempt from constmction SWPPP requirements) and
project meets one or more of the following criteria:
• results in some soil disturbance; and/or
• includes outdoor constmction activities (such as roofing, saw cutting, equipment washing,
material stockpiling, vehicle fueling, waste stockpiling)
Tier 1
No Threat Proiect Assessment Criteria
• My project is in a category of permit types exempt from city constmction SWPPP requirements
(see city's list of permit types exempt from construction SWPPP requirements) and/or does not
meet any of the high, moderate or low threat criteria described above.
Exempt
*The city engineer may authorize minor variances from the stomn water threat assessment criteria in special
circumstances where it can be shown that a lesser or higher constmction SWPPP tier level is warranted in the
opinion of the city engineer
E-32 Page 1 of 1 REV 4730/10
\y CITY OF
CARLSBAD
CONSTRUCTION THREAT
ASSESSMENT WORKSHEET FOR
DETERMINATION OF PROJECT'S
PERCEIVED THREAT TO
STORM WATER QUALITY
E-33
Development Services
Land Development Engineering
1635 Faraday Avenue
760-602-2750
www.carlsbadca.gov
Construction
SWPPP Tier
Level
Construction Threat Assessment Criteria*
Perceived
Threat to
Storm Water
Quality
Tier 3
Tier 3 - Hiah Construction Threat Assessment Criteria
High
Tier 3
• Project site is 50 acres or more and grading will occur during the rainy season
• Project site is 1 acre or more in size and is located within the Buena Vista or Agua Hedionda
Lagoon watershed, inside or within 200 feet of an environmentally sensitive area (ESA) or
discharges directly to an ESA
• Soil at site is moderately to highly erosive (defined as having a predominance of soils with
USDA-NRCS Erosion factors kt greater than or equal to 0.4)
• Site slope is 5 to 1 or steeper
• Construction is initiated during the rainy season or will extend into the rainy season (Oct. 1
through April 30).
• Owner/contractor received a Storm Water Notice of Violation within past two years
High
Tier 3
Tier 3 - Medium Construction Threat Assessment Criteria Medium
Tier 3
• All projects not meeting Tier 3 High Construction Threat Assessment Criteria Medium
Tier 2
Tier 2 Hiah Construction Threat Assessment Criteria
^ Project is located within the Buena Vista or Agua Hedionda Lagoon watershed, inside or
within 200 feet of an environmentally sensitive area (ESA) or discharges directly to an ESA
Soil at site is moderately to highly erosive (defined as having a predominance of soils with
USDA-NRCS Erosion factors ki greater than or equal to 0.4)
• Site slope is 5 to 1 or steeper
• Construction is initiated during the rainy season or will extend into the rainy season (Oct. 1
through April 30).
• Owner/contractor received a Stomi Water Notice of Violation within past two years
• Site results in one half acre or more of soil disturbance
High
Tier 2
Tier 2 - Medium Construction Threat Assessment Criteria Medium
Tier 2
• All projects not meeting Tier 2 High Construction Threat Assessment Criteria Medium
Tierl
Tier 1 - Medium Insoection Threat Assessment Criteria
Medium
Tierl
[d> Project is located within the Buena Vista or Agua Hedionda Lagoon watershed, within or
, directly adjacent to an environmentally sensitive area (ESA) or discharges directly to an ESA
^ Soil at site is moderately to highly erosive (defined as having a predominance of soils with
USDA-NRCS Erosion factors kf greater than or equal to 0.4)
• Site slope is 5 to 1 or steeper
• Constnjction is initiated during the rainy season or will extend into the rainy season (Oct. 1
through April 30).
• Owner/contractor received a Stomn Water Notice of Violation within past two years
• Site results in one half acre or more of soil disturbance
Medium
Tierl
Tier 1 - Low Insoection Threat Assessment Criteria Low
Tierl
• All projects not meeting Tier 1 Medium Construction Threat Assessment Criteria Low
Exempt - Not Applicable -Exempt
*The city engineer may authorize minor variances from the construction threat assessment criteria in special circumstances
where it can be shown that a lesser or higher amount of storm water compliance inspection is wananted in the opinion of
the city engineer
E-33 Page 1 of 1 REV 4/30/10
^ STORM WATER
<^^S^ QTAKinADnc Development Services
^' L»Mf\UO Land Development Engineering
^ CITY OF QUESTIONNAIRE I635 Faraday Avenue
CARLSBAD E-34 760-602-2750
www.carlsbadca.gov
INSTRUCTIONS:
To address post-development pollutants that may be generated from development projects, the City requires that new
development and significant redevelopment priority projects incorporate Permanent Stonn Water Best Management
Practices (BMP's) into the project design per the City's Standard Urban Stomnwater Management Plan (SUSMP).
Initially this questionnaire must be completed by the applicant in advance of submitting for a development application
(subdivision, discretionary pemiits and/or constmction permits). The results of the questionnaire determine the level of
storm water standards that must be applied to a proposed development or redevelopment project. Depending on the
outcome, your project will either be subject to 'Standard Stormwater Requirements' or be subject additional criteria
called 'Priority Development Project Requirements'. Many aspects of project site design are dependent upon the
storm water standards applied to a project.
Applicant responses to the questionnaire represent an initial assessment of the proposed project conditions and
impacts. City staff has responsibility for making the final assessment after submission of the development application.
If staff determines that the questionnaire was incorrectly filled out and is subject to more stringent storm water
standards than initially assessed by the applicant, this will result in the return of the development application as
incomplete. In this case, please make the changes to the questionnaire and resubmit to the City.
If applicants are unsure about the meaning of a question or need help in detennining how to respond to one or more of
the questions, they are advised to seek assistance from Land Development Engineering staff.
A separate completed and signed questionnaire must be submitted for each new development application submission.
Only one completed and signed questionnaire is required when multiple development applications for the same project
are submitted concurrently. In addition to this questionnaire, applicants for constmction permits must also complete,
sign and submit a Project Threat Assessment Form to address construction aspects of the project.
Please answer the questions below, follow the instructions and sign the fonn at the end.
1. Is your project a significant redevelopment? tOO
DEFINITION:
Significant redevelopment is defined as the creation, addition or replacement of at least 5,000 square feet of
impervious surface on an already existing developed site.
Significant redevelopment includes, but is not limited to: the expansion of a building footprint; addition to or
replacement of a structure; structural development including an increase in gross floor area and/or extetior
construction remodeling; replacement of an impervious surface that is not part of a routine maintenance activity; and
land disturbing activities related with structural or impen/ious surfaces. Replacement of impen/ious surfaces includes
any activity that is not part of a routine maintenance activity where impervious material(s) are removed, exposing
underlying soil during construction.
If your project IS considered significant redevelopment, then please skip Section 1 and proceed with Section 2.
If your project IS NOT considered significant redevelopment, then please proceed to Section 1.
E-34 Paget of3 REV4/30/10
^ CITY OF
CARLSBAD
STORM WATER
STANDARDS
QUESTIONNAIRE
E-34
Development Services
Land Development Engineering
1635 Faraday Avenue
760-602-2750
www.carisbadca.gov
SECTION 1 NEW DEVELOPMENT
PRIORrrV PROJECT TYPE
Does you project meet one or more ofthe following criteria: YES NO
1. Housina subdivisions of 10 or more dwellina units. Examples: sinale familv homes, multi-family homes,
condominium and apartments X
2. Commercial- areater than 1-acre. Anv develooment other than heaw industrv or residential. Examples: hosoitals:
laboratories and other medical facilities; educational institutions; recreational facilities; municipal facilities; commercial
nurseries; multi-apartment buildings; car wash facilities; mini-malls and other business complexes; shopping malls;
hotels; office buildings; pubtic warehouses; automotive dealerships; airfields; and other light industrial fadlities.
3. Heaw Industrial / Industrv- areater than 1 acre. Examoles: manufacturina olants. food orocessina plants, metal
working facilities, printing plants, and fleet storage areas (bus, truck, etc.).
4. Automotive reoair shoo. A facilitv cateaorized in anv one of Standard Indusfalal Classification (SIC) codes 5013.
5014, 5541, 7532-7534, and 7536-7539
5. Restaurants. Anv facilitv that sells oreoared foods and drinks for consumotion. includina stationarv lunch counters
and refreshment stands selling prepared foods and drinks for immediate consumption (SIC code 5812), where the
land area for development is greater than 5,000 square feet. Restaurants where land development is less than 5,000
square feet shall meet all SUSMP requirements except for structural treatment BMP and numeric sizing criteria
requirements and hydromodification requirements.
6. Hillside develooment. Anv develooment that creates 5.000 sauare feet of imoervious surface and is located in an
area with known erosive soil conditions, where the development will grade on any natural slope that is twenty-five
percent (25%) or greater.
7. Environmentallv Sensitive Area CESA)'. All develooment located within or directiv adiacent^ to or dLscharaina
directly^ to an ESA (where discharges from the development or redevelopment will enter receiving waters within ttie
ESA), which either creates 2,500 square feet of impervious surface on a proposed project site or increases the area
of imperviousness of a proposed project site to 10% or more of its naturally occurring condition. ^ / &
8. Parkina lot. Area of 5.000 sauare feet or more, or witti 15 or more oaridna soaces, and ootentiallv exoosed to urban
runoff
9. Streets, roads, hiahwavs. and freewavs. Anv oaved surface that is 5.000 sauare feet or areater used for the
transportation of automobiles, trucks, motorcycles, and other vehicles A
10. Retail Gasoline Outlets. Servina more tiian 100 vehicles oer dav and areater than 5.000 sauare feet
11. Coastal Develooment Zone. Anv oroiect located within 200 feet of the Pacific Ocean and (1) creates more than
2500 square feet of impermeable surface or (2) increases impenneable surface on property by more than 10%. n X
12. More than 1-acre of disturbance. Proiect results in the disturbance of more than 1-acre or more of land and Is
considered a Pollutant-generating Development Project^. X
1 Environmentally Sensitive Areas Include but are not limited to all Clean Water Act Section 303(d) Impaired water bodies; areas designated as /Vreas of Special
Biological Significance by the State Water Resources Control Boanl (Water Quality Control Plan for tt\e San Diego Basin (1994) and amendments); water bodies
designated with the RARE beneficial use by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments);
areas designated as preserves or their equivalent under the Multi Species Conservation Program within the Cities and County of San Diego; and any other equivalent
environmentally sensitive areas which have been Identified by the Copermittees.
2 'Directly adjacenf means situated within 200 feet of the Environmentally Sensitive Area.
3 "Discharging directly to' means outflow from a drainage conveyance system that is composed entirely of flows from the subject development or redevelopment site, and
not commingled with flow from adjacent lands.
4 Pollutant-generating Development Projects ara those projects that generate pollutants at levels greater than background levels. In general, these include all projects
that contribute to an exceedance to an impaired water body or which create new impervious surfaces greater than 5000 square feet and/or introduce new landscaping
areas that require routine use of fertilizere and pesticides. In most cases linear pathway projects that are fbr infrequent vehicle use, such as emergency or maintenance
access, or for pedestrian or bicycle use, are not considered Pollutant-generating Development Projects if they are built with perelous surfaces or if they sheet flow to
surrounding pervious surfaces.
Sactlon 1 Results:
.If you answered YES to ANY of Uie questions above your project is subject to Priority Development Project requirements. Please check the
"meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3. A Stomi Water Management Plan, prepared in accordance with City
Storm Water Standards, must be submitted at time of application.
If you answered NO to ALL of Uie questkins above, then your project Is subject to Standard Stomiwater Requirements. Please check the "does
not meet POP requirements" box in Section 3.
E-34 Page 2 of 3 REV 4/30/10
^ CITY
CARLSBAD
O F
STORM WATER
STANDARDS
QUESTIONNAIRE
E-34
Development Services
Land Development Engineering
1635 Faraday Avenue
760-602-2750
www.carlsbadca.gov
SECTION 2 SIGNIFICANT REDEVELOPMENT
Complete the questions below regarding your redevelopment project: YES NO
1. Project results in the disturbance of more than 1 -acre or more of land and is considered a Pollutant-generating
Development Project (see definition in Section 1).
If you answered NO, please proceed to question 2.
If you answered YES, ttien you ARE a significant redevelopment and you ARE subject to PRiORITY DEVELOPMENT PROJECT
requirements. Please check the 'meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3 below.
2. Is the project redeveloping an existing priority project type? (Priority projects are defined in Section 1)
If you answered YES, please proceed to question 3.
If you answered NO, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER
REQUIREMENTS. Please check the 'does not meet PDP requirements" box in Section 3 below.
3. Is the project solelv limited to just one of the following:
a. Trenching and resurfacing associated witii utility wori^?
b. Resurfacing and reconfiguring existing surface parking lots?
c. New sidewalk construction, pedestrian ramps, or bike lane on public and/or private existing roads?
d. Replacement of existing darhaged pavement?
If you answered NO to ALL of the questions, then proceed to question 4.
If you answered YES to ANY of the questions then you ARE NOT a significant redevelopment and your project is subject to Standard
Stormwater Requirements. Please check the 'does not meet PDP requirements" box in Section 3 below.
Will your redevelopment project create, replace, or add at least 5,000 square feet of impervious surfaces on an existing
development or, be located within 200 feet of the Pacific Ocean and (1 )create more ttian 2500 square feet of
impermeable surface or (2) increases impermeable surface on the property by more than 10%?
If you answered YES, you ARE a significant redevelopment, and you ARE subject to PRIORITY DEVELOPMENT PROJECT requirements.
Please check the "meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3 below.
If you answered NO, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER
REQUIREMENTS. Please check ttie "does not meet PDP requirements" box in Section 3 below.
SECTION 3
Questionnaire Results:
My project meets PRIORITY DEVELOPMENT PROJECT (PDP) requirements and must comply witti additional stormwater criteria
per the SUSMP and must prepare a Storm Water Management Plan for submittal at time of application.
My project does not meet PDP requirements and must only comply witii STANDARD STORMWATER REQUIREMENTS per the
SUSMP.
Applicant Information and Signature Box TTiis Box for Cty Use Only
Address: Assessor's Parcel Numt)er(s):
Applicant Name: Applicant TiUe:
Applicant Signature: Date:
City Concurrence:
By:
YES NO
Pr<^ID:
E-34 Page 3 of 3 REV 4/30/10
Identify the project schedule. List c^W^I and desired milestones induding ctesfe in the development review and
oonstruction process (e.g., public hearing dates, grant application submittal deadlines, public workshops, oonstruction
phasing, etc.).
Obtain Discretionary Actions-March 2012
Obtain (jOastal Development Ftermit - September 2012
Award Cbntract - October 2012
QDnstruction (6 weeks) - Ntovember to December 2012
DBCRPTION OF PRDPGSAL- Describe the project in as much detail as possible. Use as much space as needed. Attach
additional sheets (drawings, eta) if necessary. Be sure to identify, if applicable, estimated quantitiesof grading (including
import/export), oonstruction staging areas on and offsite, areas of sensitive vegetation, unique oonstruction technologies,
proposed facility technologies and byproducts and any public art component. If preliminary or oonoeptual plans or
exhibits are available, please include with this transmittal.
The project is the installation of new 18-inch RCP per Qty minimum standards to replace damaged and degraded
corrugated metal pipe near the intersection of Highland Drive and Adams Sreet and the rehabilitation of existing 21-inch
corrugated metal pipe storm drain in Hoover 3reet between Adams Drive and the Agua Hedionda Lagoon.
The existing 15-inch and 12-inch corrugated metal pipelines are proposed to be replaced with an 18 -inch reinforced
oonaete pipe. The pipelines were installed by Qty forces and do not have improvement plans. There are a series of
underground and above ground utility conflicts and the pipeline has been designed to avoid these oonflicta Installation
of two type Fcatch basins will collect surface flows and convey them through the storm drain to an outfall structure. Rp
rap is proposed to slow storm water flowa Currently there is not outfall structure and erosion is apparent at the existing
outfall. A dean out will be constructed at an angle point for maintenance purposes. C L^'\*€}
"Pie 21 -inch corrugated pipeline from Adams 3 to the lagoon in Hoover Drive is shown on Qty Drawing DWG 15&-9 and
278-4 It has deteriorated over time, the Qty will use a cured-in-plaoe liner to completely line the damaged pipeline,
approximately 474 lineal feet. In addition, some pipeline is so degraded that it will require complete replacement through
open trench methoda Tlie project will also indude installation of a new manhole at the transition from cured-in-plaoe
lined pipeline and the new pipeline. A headwall will be constructed at the outfall into the lagoon. Rp Ffeip energy
dissipater will be installed to slow flows and limit erosion during storm events The current pipeline outfall directly inot
the lagoon. The old rip rap is present however has been pushed into the lagoon. It is undear how much water remains in
the pipeline at the outfall because the floor is completely missing.
Photos of the damaged pipe line are induded and indude one that was taken with a camera on a robot showing the
damaged pipeline in Hoover Drive.
Early Assessment For City Projects - Revised 10/12/06 Page 3 of 8
HOOVER STORM DRAIN
Corrugated Metal Pipe is badly
degraded at 100 feet southerly from
Manhole16D-10.
Pipe beyond this point will require
replacement.
Existing inlet into Manhole 16D-10.
No changes are proposed at the
Inlet.
Photos taken 11-17-2009.
Early Assessment For City Projects - Revised 10/12/06 Page 4 of i
Memorandum
June 27, 2012
To: ^ Sherri Howard, Associate Engineer
From: Pam Drew, Associate Planner
Via uAM/bave De Cordova, Principal Planner
Re: EA 11-13 - 6607 CMP REPLACEMENT PROGRAM
On August 16, 2011 you submitted an Early Assessment (EA 11-13) to replace and/or rehabilitate
sections of 12-, 15- 18- and 21-inch corrugated metal pipeline (CMP) by either replacing the existing
pipeline or installing a cured-in-place liner at two different locations. Staff asked for a Biological and
Archaeological report to determine if there would be any impacts to biological or cultural resources. You
submitted a Biological Resources Report and Archaeological Survey Report, prepared by Dudek and
dated April 2012, for staffs review.
After reviewing the reports, staff has determined that the project could have significant impacts on
natural resources if mitigation measures were not implemented. Therefore, an Environmental Initial
Study Part II must be completed for the project. Furthermore, since the project will have temporary and
permanent impacts to Coastal Sage Scrub, a Habitat Management Plan permit may also be required.
Staff will make that determination once the California Coastal Commission (CCC) determines if a CDP will
need to be issued for those portions of the project located in their area of deferred certification (Agua
Hedionda Land Use Plan).
After further review of the project boundaries with the FEMA maps, the section of piping and riprap
energy dissipater that is proposed to the north of the lagoon is not within the 100-year floodplain, and
would not require a Special Use Permit (SUP).
If you would like to schedule a meeting to discuss this letter with your staff planner, please contact Pam
Drew, Associate Planner at ext. 4644, or your staff engineer, TecIa Levy, Associate Engineer, at ext. 2733.
DD:PD:bd
c: Don Neu, City Planner
Scott Donnell, Senior Planner
Bill Plummer, Deputy City Engineer
TecIa Levy, Associate Engineer
File Copy
Data Entry
Community & Economic Development
1635 Faraday Ave. I Carlsbad, CA 92008 I 760-602-2710 I 760-602-8560 fax
<#i^^g^ CITY OF
^ CARLSBAD
Memorandum
Septembers, 2011
To: Sherri Howard, Associate Engineer
From: Pam Drew, Associate Planner
Via A Dave De Cordova, Principal Planner
Re: y EA 11-13 - 6607 CMP REPLACEMENT PROGRAM
FILE COPY
Thank you for submitting an Early Assessment to replace and/or rehabilitate sections of 12-, IS-
IS- and 21-inch corrugated metal pipeline (CMP) by either replacing the existing pipeline or
installing a cured-in-place liner at two different locations. The two projects and locations are as
follows:
1) Replace approximately 132 lineal feet of 12- and 15-inch damaged and degraded CMP
with an 18- inch reinforced concrete pipe (RCP) within the public right-of-way at the
intersection of Highland Drive and Adams Street. In addition, the project includes the
construction of: 1) two catch basins; 2) two storm drain cleanouts; 3) a concrete
drainage swale; 4) a concrete drainage ditch; 5) a concrete spillway; and 6) a riprap
energy dissipater.
2) Rehabilitate approximately 474 lineal feet of 21-inch CMP with a cured-in-place liner.
The project also includes replacing approximately 24 lineal feet of 21-inch CMP with 18-
inch high-density polyethylene (HDPE) pipe, via open trench. The project is located
within the public right-of-way of Hoover Street and designated open space between the
south end of Hoover Street to the northern edge of the Agua Hedionda Lagoon. In
addition, the project includes the construction of a: 1) catch basin; 2) storm drain
cleanout; 3) concrete drainage ditch; 4) concrete dike; 5) 6-inch curb; 6) headwall; and
7) riprap energy dissipater.
In response to your application, the Planning Division has prepared this comment letter. Please
note that the purpose of an Early Assessment is to provide you with direction and comments on
the overall concept of your project. This Earlv Assessment does not represent an in-depth
analvsis of vour proiect. It Is intended to give vou feedback on critical issues based upon the
information provided in vour submittal. This review is based upon the plans, policies, and
standards in effect as of the date of this review. Please be aware that at the time of a formal
application submittal, new plans, policies, and standards mav be in effect and additional
issues of concern mav be raised through a more specific and detailed review.
Community & Economic Development
1635 Faraday Ave. I Carlsbad, CA 92008 I 760-602-2710 I 760-602-8560 fax
EA 11-13 - 6607 CMP REPLACEMENT PROGRAM
September 9, 2011
Page 2
Planning:
General
1. Both projects are located in the Coastal Zone within an area of deferred certification
(Agua Hedionda Land Use Plan) and will require the project to be reviewed by the
California Coastal Commission (CCC). You will need to contact the San Diego Coast
District Office of the CCC at (619) 767-2370 to determine if a Coastal Development
Permit (CDP) issued from the CCC is needed.
Portions ofthe project located northeast of Adams Street are located within the Mello II
Segment of the Local Coastal Program and would require a CDP issued by the city.
However, these project components are exempt because they do not occur within
Environmentally Sensitive Habitat Areas (ESHA) or water bodies and are considered
repair and maintenance activities not described in C.M.C. Section 21.201.070 and do not
require a CDP as indicated in C.M.C. Section 21.201.060 A.ll.
2. The section of piping and riprap energy dissipater that is proposed within the lagoon
area is within the 100-year floodplain, and would require a Special Use Permit (SUP) for
any construction or development within the flood hazard area. Furthermore, if the
project proposes any direct or indirect impacts to natural habitat, including any
permanent impacts to riparian habitat, the project may need a Habitat Management
Plan (HMP) permit. City permits will need to be obtained before the CCC issues a CDP, if
required.
3. Environmental review for compliance with the California Environmental Quality Act
(CEQA) will need to be performed prior to construction. Based on the location of the
project within and adjacent to ESHA, and the Agua Hedionda Lagoon, a Biological
Resources Technical Report (BTR) and Cultural Resources Report will need to be
prepared for the project. Please review the Guidelines for Biological Studies available on
the city's website. Please submit the BTR and Cultural Resources Report for planning
staff review.
4. It may be necessary to demonstrate compatibility with coastal policies, particularly if
habitat or wetlands/waterways are disturbed. These policies are found in the Agua
Hedionda Land Use Plan and would be discussed in the project's environmental
document and/or permit findings.
Land Development Engineering:
5. See comments on the submitted Storm Water Standards Questionnaire form E-34
(previously returned to you).
'•«^|||' EA 11-13 - 6607 CMP REPLACEMENT PROGRAM
September 9, 2011
Page 3
All necessary application forms and submittal requirements are available at the Planning
counter located in the Faraday Building at 1635 Faraday Avenue or online at
www.carlsbadca.gov. You may also access the General Plan Land Use Element and the Zoning
Ordinance online at the website address shown; select Department Listing; select Planning
Home Page. Please review all information carefully before submitting.
If you would like to schedule a meeting to discuss this letter with your staff planner, please
contact Pam Drew, Associate Planner at ext. 4644, or your staff engineer, TecIa Levy, Associate
Engineer, at ext. 2733.
DD:PD:lt
c: Don Neu, City Planner
Scott Donnell, Senior Planner
Bill Plummer, Deputy City Engineer
TecIa Levy, Associate Engineer
File Copy
Data Entry
RINCON BAND OF LUISENO INDIANS ^.ofu^.
Culture Committee
P0.SI Office Box 68 • VaUey Center. California 92082
(760) 297-2621 or (760) 297-2622 & Fax;(760) 749-890 I
May 21. 2012
Ken Victorino
Senior Archaeologist
Dudek
621 Chapala Street
Santa Barbara, CA 93101
Rc: Proposed Corrugated Metal Pipe Replacemeni Program
Carlsbad. CA
Dear Ken Victorino.
This letter is writlen on behalf of the Rincon Band of Luiseno Indians. Thank you for inviting us
to submit comments on the Propo.sed Corrugated Metal Pipe Replacement Program, Carlsbad,
CA project.
The Rincon Band has concerns for impacts, disturbances, and destruction to historic properties,
cultural resources, and findings of significant value that are considered culturally important to
the l.uiseno people. This is to inform you lhal your identified location is wilhin the Aboriginal
Territory ofthe Luiseiio people, and is wilhin Rincon"s historic boundaries.
The close proximity ofthe project to known archaeological sites is of concem to Rincon. and we
are also concerned for the protection of any inadvenent archaeological discoveries thai could be
made al the project sile. For any and all ground disturbance activities, we request that you have a
Native American Monitor present at your work location, and also lhal you contact the Native
American Heritage Commission regarding information on other Tribes in your project area.
Additionally, we request that you would provide us with updates regarding the project.
If you have any questions, please contact (760) 297-2635. Thank you for this opportunity to
protect and preserve our cultural assets.
Sincerely^^^^
iro
Rincofi Culture Committee Chair
Bo MiW.etti Stephanie Spencer Charlie Kolb Steve Stallings Laurie H. Gonzalez
I nhal t hiiirnian Vice Chairwoman Council .Member Council Member Council Memtwr
PALA TRIBAL HISTORIC
PRESERVATION OFFICE
PMB 50, 35008 Pala Temecula Road
Pala, CA 92059
760-891-3510 Office I 760-742-3189 Fax PALA THPO
April 13,2012
Ken Victorino
Dudek
621 Chapala Street
Santa Barbara, CA 93101
Rc: Proposed Corrugated Metal Pipe Replacement Program
Dear Mr. Victorino,
The Pala Band of Mission Indians Tribal Historic Preservation Office has received your
notification of the project referenced above. This letter constitutes our response on behalf
of Robert Smith, Tribal Chairman.
We have consulted our maps and determined that the project as described is not within
the boundaries of the recognized Pala Indian Reservation. The project is also beyond the
boundaries ofthe territory that the tribe considers its Traditional Use Area (TUA).
Therefore, we have no objection to the continuation of project activities as currently
planned and we defer to the wishes of Tribes in closer proximity to the project area.
We appreciate involvement with your initiative and look forward to working with you on
future efforts. If you have questions or need additional information, please do not hesitate
to contact me by telephone at 760-891 -3515 or by e-mail at sgaughen@palatribe.com.
Sincerely,
Shasta C. Gaughen, PhD
Tribal Historic Preservation OfTicer
Pala Band of Mission Indians
ATTENTION: THE PALA TRffiAL HISTORIC PRESERVATION OFFICE IS RESPONSIBLE
FOR ALL REQUESTS FOR CONSULTATION. PLEASE ADDRESS CORRESPONDENCE
TO SHASTA C. GAUGHEN AT THE ABOVE ADDRESS. IT IS NOT NECESSARY TO
ALSO SEND NOTICES TO PALA TRIBAL CHAIRMAN ROBERT SMITH.
Con.sultation letter I
9
•••v* J, j
tr ^•'ir
•I
DRAFT
Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
Prepared for:
City of Carlsbad - Utilities Engineering Division
1635 Faraday Avenue
Carlsbad, California 92008
Contoct: Sherri Howard, Associate Engineer
Prepared by:
D U D E l<
605 Third Street
Encinitas, California 92024
Contact: Vipul Joshi
APRIL 2012
Printed on 30% post-consumer recycled material.
Corrugated Metal Pipe Replacement Program -
Hoover/Lagoon and Highland/Adams
TABLE OF CONTENTS
Section Paqe No.
1.0 INTRODUCTION 1
2.0 REGULATORY SETTING 1
2.1 North County Multiple Habitat Conservation Plan 1
2.2 Agua Hedionda Land Use Plan and Local Coastal Program 2
2.3 Califomia Coastal Commission 2
3.0 PROJECT SETTING 2
3.1 Proj ect Location 2
3.2 Topography and Soils 3
3.3 On-site and Surrounding Land Uses 3
4.0 PROJECT DESCRIPTION 3
5.0 METHODS 4
5.1 Literature Review 4
5.2 Field Reconnaissance 4
5.2.1 Vegetation Community and Land Cover Mapping 19
5.2.2 Flora 19
5.2.3 Fauna 19
5.2.3 Jurisdictional Delineation 19
5.2.5 Survey Limitations 21
6.0 RESULTS 22
6.1 Vegetation Communities, Land Covers, and Floral Diversity 22
6.1.1 Open Water-64ICQ 23
6.1.2 Beach-64400 23
6.1.3 Coastal Brackish Marsh - 52200 23
6.1.4 Coastal Sage Scrub (including disturbed) - 32500 23
6.1.5 Non-native Grassland - 42200 24
6.1.6 Disturbed Habitat - 11300 25
6.1.7 Developed- 12000 25
6.1.8 Floral Diversity 25
6.2 Wildlife 25
6.3 Special-Status and/or Regulated Resources 27
6.3.1 Special-status Plant Species 27
6.3.2 Special-status Wildlife Species 27
6.4 Jurisdictional Delineation 46
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7.0 IMPACTS 46
7.1 Permanent Impacts 47
7.1.1 Hoover/Lagoon 48
7.1.2 Highland/Adams 48
7.2 Temporary Impacts 48
7.2.1 Hoover/Lagoon 48
7.2.2 Highland/Adams 49
7.3 Determination of Significance 49
7.3.1 Direct Permanent 49
7.3.2 Direct Temporary 50
7.3.3 Indirect Temporary 50
8.0 RECOMMENDED AVOIDANCE AND MINIMIZATION MEASURES 50
8.1 HMP Compliance 50
8.2 Recommended Mitigation Measures 50
9.0 REFERENCES 52
APPENDICES
A Cumulative List of Plant Species within the Project Area
B Cumulative List of Wildlife Species within the Project Area
FIGURES
1 Regional Map 5
2 Vicinity Map 7
3 Regional Planning 9
4a Biological Resources Map - Hoover/Lagoon Project Area 11
4b Biological Resources Map - Highland/Adams Project Area 13
5a Proposed Impacts - Hoover/Lagoon Project Area 15
5b Proposed Impacts - Highland/Adams Project Area 17
TABLES
1 Survey Conditions 4
2 Vegetation Communities and Land Cover Types within the Project Area 22
3 Special-Status Plant Species Observed or Potentially Occurring on the Project Site 29
4 Special-status Wildlife Species Observed or Potentially Occurring in the
Project Area 37
5 Results of Jurisdictional Delineation : 46
6 Impacts to Vegetation Communities within the Project Area 47
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1.0 INTRODUCTION
This report describes the existing biological conditions within 250 feet of two projects proposed
as part of the Corrugated Metal Pipe Replacement Program (proposed project). The proposed
project consists of either replacing or repairing sections of pipe at two separate locations: Adams
Street/Highland Drive and Hoover Street^Agua Hedionda Lagoon, both located within the City
of Carlsbad (City), California (Figures 1 and 2).
The purpose of this report is to (1) describe the conditions of biological resources within the
project area in terms of vegetation, flora, wetlands, wildlife, and wildlife habitats; (2) quantify
potential direct and indirect impacts to biological resources that will result from the project; (3)
discuss those impacts in terms of biological significance in view of federal, state, and local laws
and City policies; and (4) specify measures to mitigate any impacts that would occur to
biological resources requiring mitigation in accordance with the City's Biology Guidelines
(Technology Associates 2008).
2.0 REGULATORY SETTING
2.1 North County Multiple Habitat Conservation Plan
The City is a member of the North County Multiple Habitat Conservation Plan (MHCP;
SANDAG 2001) and has adopted a Habitat Management Plan (HMP), which is a subarea plan
under the MHCP. The MHCP is a comprehensive, multiple-jurisdictional planning tool designed
to create, manage, and monitor an ecosystem preserve in northwestem San Diego County. The
HMP is a citywide program with the purpose of preserving the diversity of species and habitats
as well as sensitive biological resources while allowing for development that is consistent with
City plans. The objectives of the HMP are to develop a plan that conserves the full range of
vegetation types with the focus on rare species and habitat, conserves areas capable of supporting
covered species in perpetuity, and maintains functional wildlife corridors and habitat linkages.
Based on proposed development and biological resources, hard- and soft-line Focus Planning
Areas (FPAs) are designated in the HMP. Hard-line areas generally require 100% conservation
and soft-line areas generally require specific conservation standards to be implemented during
development review. Portions of the Hoover/Lagoon project area are within an existing hardline
FPA, while a portion of the Highland/Adams project area is located within a proposed standards
area (Figure 3).
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DUDEK 1 April 2012
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Corrugated Metal Pipe Replacement Program -
Hoover/Lagoon and Highland/Adams
2.2 Agua Hedionda Land Use Plan and Local Coastal Program
Agua Hedionda Lagoon and surrounding properties are also regulated by the City's Agua
Hedionda Land Use Plan and Local Coastal Program (LCP) (City of Carisbad 1982). The LCP
identifies the lagoon as supporting water quality, viewshed, public use, and biological values that
require protection. According to the Land Use Plan, portions of the open space in which the
projects are located are designated as low-to-medium residential and recreation commercial. The
portions of the shoreline are designated as open space (Exhibit C, City of Carlsbad 1982).
2.3 California Coastal Commission
Both projects are located within the boundaries of the coastal zone within a coastal deferred
certification area. Under the Califomia Coastal Act (CCA), the California Coastal Commission
(CCC) regulates the "coastal zone" and requires a coastal development permit for almost all
development within this zone. The CCA also protects designated sensitive coastal areas by
providing additional review and approvals for proposed actions in these areas. The CCA defines
wetlands as "lands within the coastal zone which may be covered periodically or permanently with
shallow water and include saltwater marshes, swamps, mudflats, and fens" (Califomia Public
Resources Code, Section 30121). The CCA allows diking, filling, or dredging of wetlands for
certain uses, such as restoration. The CCA also directs each city or county within the coastal zone
to prepare an LCP for CCC certification (Califomia Public Resources Code, Section 30500).
Certain coastal areas located within a county or city jurisdiction area are known as "areas of
deferred certification" (ADCs). Such geographic areas are not considered by the CCC to be part
of the final, certified LCP, even while surrounded by other areas that are addressed by the LCP.
The creation of an ADC results generally from a lack of agreement between the CCC and a
county or city regarding the LCP policies or zoning provisions that should apply to a specific
geographic area. Certification by the CCC of the remainder of the LCP jurisdiction area may
occur, but the site of the disagreement remains "uncertified."
3.0 PROJECT SETTING
3.1 Project Location
The proposed projects occur in two separate locations. One project is located along Hoover
Street, southwest of Adams Street, and within vacant land adjacent to the Agua Hedionda
Lagoon (Hoover/Lagoon), and the other project is located at the intersection of Highland Drive
and Adams Street (Highland/Adams) within the City of Carlsbad, San Diego County (Figures 1
and 2). Both project areas are located on the U.S. Geological Survey (USGS) 7.5 minute San Luis
Rey quadrangle. Township 12 South, Range 4 West, Section 8.
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DUDEK 2 April 2012
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Corrugated Metal Pipe Replacement Program -
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3.2 Topography and Soils
The Hoover/Lagoon project area is located immediately adjacent to Hoover Street, which slopes
southwest toward the lagoon. The pipeline extends southwest of Hoover Street, into disturbed
habitat, and continues to slope toward that lagoon. Elevations range from approximately 0 to 80
feet above mean sea level (amsl). The Highland/Adams project area is located primarily within
roadways, and only a small portion of the project is located within native habitat. Topography
within the immediate project vicinity is relatively fiat. A slope of native vegetation that leads to
the lagoon is located just south of this project area.
Two soil types are located within the entire project area. Soils within the Hoover/Lagoon project
consist of Carlsbad gravelly loamy sand, 9% to 15% slopes. These moderately well-drained soils
are derived from ferruginous sandstone. The soils within the Highland/Adams are marina loamy
coarse sand, 9% to 30% slopes. These soils are classified as somewhat excessively drained, and
the parent material is eolian sand derived from mixed sources.
3.3 On-site and Surrounding Land Uses
Both proposed projects are located northeast of the Agua Hedionda lagoon. A patch of vacant
land is located between the lagoon and Adams Street (Figures 4a and 4b) that is identified as
Hedionda Point in the Agua Hedionda Land Use Plan (City of Carlsbad 1982). Residential
development surrounds the vacant land and both project areas to the north, south, and east.
Interstate 5 is located west of the lagoon and both project areas. The General Plan Land Use
designation is Residential low to medium density and the zoning is R-1-15000 for vacant and
adjacent lots.
4.0 PROJECT DESCRIPTION
The Hoover/Lagoon project involves rehabilitating approximately 474 lineal feet of 21-inch
corrugated metal pipeline (CMP) with a cured-in-place liner. The project also includes replacing
approximately 24 lineal feet of 21-inch CMP with 18-inch high-density polyethylene (HDPE)
pipe via open trench immediately upstream of the damaged drainage outfall structure. The
project is located within the public right-of-way of Hoover Street and vacant land between the
southem end of Hoover Street and the northern edge of the Agua Hedionda Lagoon. In addition,
the project includes the construction of a 1) storm drain cleanout, 2) headwall, and 3) riprap
energy dissipater (Figure 5a).
The Highland/Adams portion of the proposed project consists of replacing approximately 132
lineal feet of 12- and 15-inch damaged and degraded CMP with an 18-inch reinforced concrete
pipe (RCP) within the public right-of-way at the intersection of Highland Drive and Adams
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Street. In addition, the project includes construction of 1) two catch basins, 2) two storm drain
cleanouts, 3) a concrete drainage swale, 4) a concrete drainage ditch, 5) a concrete spillway, and
6) a riprap energy dissipater (Figure 5b).
Staging for equipment storage, etc., during construction for both projects is assumed to occur
within roadways or other disturbed, vacant lots that are devoid of biological resources.
5.0 METHODS
Data regarding biological resources present in the project area were obtained through a review of
pertinent literature and field reconnaissance; both are described in detail as follows.
5.1 Literature Review
Special-status biological resources present or potentially present on site were identified through a
literature search using the following sources: Habitat Management Plan for Natural
Communities in tlie City of Carlsbad (City of Carlsbad 1999); U.S. Fish and Wildlife Service
(USFWS) (2012); California Department of Fish and Game (CDFG) (2011a-b and 2012a-c);
and the Califomia Native Plant Society's (CNPS's) online Inventory of Rare and Endangered
Vascular Plants (CNPS 2012).
5.2 Field Reconnaissance
Dudek biologists Callie Ford and Patricia Schuyler conducted vegetation mapping, a botanical
inventory, a general wildlife survey, and a jurisdictional delineation on January 27, 2012. Survey
conditions are included in Table 1.
Table 1
Survey Conditions
Date Staff Survey Duration Temperature Sl^ies Wind
Jan 27, 2012 Callie Ford;
Patricia Scliuyler
1300-1730 79'-F Clear, 0% cloud
cover
0 to 2 mph
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Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
INTENTIONALLY LEFT BLANK
DUDEK 6 April SI2
7216
SOURCE: USGS 7.5-Miriute Series San Luis Rey Quadrangle. FIGURE 2
Vicinity Map
Corrugated Metal Pipe Replacement Program - Hoover/Lagoon and Highland/Adams
Corrugated Metal Pipe Replacement Program -
Hoover/Lagoon and Highland/Adams
INTENTIONALLY LEFT BLANK
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DUDEK 8 April 2012
...^^^...:.L'%.^...
FIGURE 4a
Biological Resources Map - Hoover/Lagoon Project Area
Corrugated Metal Pipe Replacement Program - Hoover/Lagoon and Highland/Adams
Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
INTENTIONALLY LEFT BLANK
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DUDEK 12 April 2012
ff:
e
DUDEK
• No Impact j
j Pipolino Relininq^'^-lis?
1 •
Corrugated Melal Pipe
Project Impacts
: - ^^^J Permanent - Pipe Outlet • 49 sq fl
i :j Temporary - Work Area - 400 sq ft
. 250 Fl BulTef
Vegetation Communities
CSS • Coastal Sage Scrub
DEV - Developed
FIGURE 5b
Proposed Impacts - Highland/Adams Project Area
Conugated Metal Pipe Replacement Program - Hoover/Lagoon and Highland/Adams
Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
INTENTIONALLY LEFT BLANK
f% I I r\ c 1^ •^^le
DUDEK 18 . April 2012
m
f
250 Ft Buffer
Corrugated Metal Pipe
, /i Coastal Zone
HMP Classification
Proposed Standards Area
1^^^ Existing Hardline Conservation Area
FIGURES
Regional Planning
Corrugated Metal Pipe Replacement Program - Hoover/Lagoon and Highland/Adams
Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
INTENTIONALLY LEFT BLANK
DUDEK - 10 AprilS!'
e 50 100
DUDE It
.. 250 Fl Buffer
Vegetation Communities
CSS - Coastal Sage Scrub
I DEV Developed
FIGURE 4b
Biological Resources Map - Highland/Adams Project Area
Corrugated Metal Pipe Replacement Program - Hoover/Lagoon and Hig hi and/Adams
Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
INTENTIONALLY LEFT BLANK
T216
DUDEK 14 April 2012
Con-ugaiod Metal Pipe
Project Impacts
Permanent - Pipe Outlet - 49 sq ft
• Temporary - Work Area - 400 sq fl
250 Ft Buffer
Vegetation Communities
CSS - Coastal Sage Scrub
H DEV - Developed
DUDEK SOURCE: BING 2011, Hans & Associates FIGURE 5b
Proposed Impacts - Highland/Adams Project Area
Corrugated Metal Pipe Replacement Program - Hoover/Lagoon and Highland/Adams
DUDEK SOURCE: BING 2011, Hams S Associates FIGURE 5a
Proposed Impacts - Hoover/Lagoon Project Area
Corrugated Metal Pipe Replacement Program - Hoover/Lagoon and Highland/Adams
Corrugated Metal Pipe Replacement Program -
Hoover/Lagoon and Highland/Adams
5.2.1 Vegetation Community and Land Cover Mapping
Plant communities were mapped in the field directly onto a 100-scale (1 inch =100 feet) color
digital orthographic map of the property. These boundaries and locations were digitized by
Dudek geographic information system (GIS) technician Tyler Friesen using ArcGIS software.
Vegetation community classifications used in this report follow Holland (1986), as revised by
Oberbauer et al. (2008).
5.2.2 Flora
All plant species encountered during the field surveys were identified and recorded. Those
species that could not be identified immediately were brought into the laboratory for further
investigation. Latin and common names for plant species with a Califomia Rare Plant Rank
(CRPR) (formerly CNPS List) follow the CNPS On-Line Inventory of Rare, Threatened, and
Endangered Plants of California (2010). For plant species without a CRPR, Latin names follow
the Jepson Interchange List of Currently Accepted Names of Native and Naturalized Plants of
California (Jepson Flora Project 2010), and common names follow the U.S. Department of
Agriculture (USDA) Natural Resources Conservation Service Plants Database (USDA 2010).
5.2.3 Fauna
Dudek biologists walked both project areas to identify and record all wildlife species, as detected
during field surveys by sight, calls, tracks, scat, or other signs. In addition to species actually
observed, expected wildlife usage of the site was determined according to known habitat
preferences of regional wildlife species and knowledge of their relative distributions in the area. No
trapping or focused surveys for special-status or noctumal species was conducted. Latin and
common names of animals follow Stebbins (2003) for reptiles and amphibians, American
Ornithologists' Union (AOU 2012) for birds, Wilson and Reeder (2005) for mammals, and
Emmel and Emmel (1973) for butterflies.
5.2.3 Jurisdictional Delineation
A jurisdictional delineation was conducted within the project boundary to delineate areas under
the jurisdiction of the CDFG, pursuant to Sections 1600-1603 of the Califomia Fish and Game
Code, under the jurisdiction of the U.S. Army Corps of Engineers (ACOE), pursuant to Section
404 of the federal Clean Water Act (CWA), under jurisdiction of Regional Water Quality
Control Board (RWQCB), pursuant to CWA Section 401 and the Porter-Cologne Act, and under
the jurisdiction of the CCC under the CCA. The ACOE jurisdictional wetlands delineation was
conducted in accordance with the U.S. Army Corps of Engineers Wetland Delineation Manual
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(ACOE 1987), the Interim Regional Supplement to the Corps of Engineers Wetland Delineation
Manual: Arid West Region (ACOE 2008), and Rapanos Guidance (ACOE and EPA 2008);
hydrology, vegetation, and soils were examined at potential wetland sites and were recorded on
wetland determination data forms.
A predominance of hydrophytic vegetation, where associated with a stream channel, was used to
define CDFG-regulated riparian vegetation. The limits of areas under the jurisdiction of the
RWQCB generally match those areas delineated as ACOE-jurisdictional. However, stream
channels with evidence of an ordinary high water mark (OHWM) that lack connectivity to
"waters of the U.S." may be considered to be under the jurisdiction of RWQCB and CDFG but
not under the jurisdiction of ACOE. CCC jurisdiction was based on presence of any one of the
three wetland criteria. ACOE jurisdiction of tidal wetlands, regardless of the presence/absence of
indicators, extends to 18 inches above mean ordinary high tide elevation. Based on tide charts for
the Carlsbad area, ordinary mean high tide was determined to be approximately 3 feet amsl, and
therefore tidal wetlands jurisdiction extends to the 4.5-foot contour amsl (Anderson 2011). It is
presumed that RWQCB and CCC also take jurisdiction over this tidal area. Additional wetlands
jurisdiction may occur above the 4.5-foot contour, but would be based on presence of appropriate
wetlands indicators. CDFG, under the Lake and Streambed Alteration program, does not regulate
impacts to marine wetlands that are supported by tidal influences. The extent of wetland features
was determined in the field by collecting data using a Global Positioning System (GPS) unit; the
shapes were then transferred to topographic base, and GIS coverage was created.
The results of the study include areas delineated as jurisdictional by the ACOE, RWQCB, and
the CCC. Since the project area is solely influenced by tides, none of the wetlands on site is
under the jurisdiction of the CDFG.
Hydrophytic Vegetation
Seasonal changes in species composition, human land-use practices, wildfires, and other natural
disturbances can adversely affect the wetlands vegetation determination. During the delineation, a
data station point was considered positive for hydrophytic vegetation if it passed the basic
dominance test (Indicator 1), meaning that more than 50% of the dominant species sampled were
characterized as either obligate, facultative wetland, and/or facultative per the National List of
Plant Species that Occur in Wetlands: 1988 National Summary (Reed 1988). In those cases where
the dominance test failed, the vegetation parameter was reevaluated using the prevalence index
(Indicator 2), which takes into account all plant species in the community, not just dominants. The
standard plot sampling technique was used to sample vegetation within a 5-foot radius for
herbaceous vegetation and a 10-foot radius for trees, shrubs, and woody vines. All plant species
7P1 fi
UDEK 20 April 2012
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observed during the surveys were identified and recorded. Where plant identification could not be
made in the field, a sample was taken and later identified in the laboratory.
Hydric Soils
According to the National Technical Committee for Hydric Soils, hydric soils are "soils that are
formed under conditions of saturation, flooding, or ponding long enough during the growing
season to develop anaerobic conditions in the upper part" (USDA Soil Conservation Service 1994).
Soil pits were prepared using a "sharp shooter" shovel to determine whether hydric soils were
present. The presence of hydric soils was determined through consultations with the 1987 Manual
as well as Field Indicators of Hydric Soils in the United States v. 7.0 (NRCS 2010) and the Interim
Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region
(ACOE 2008). Munsell Soil Color Charts were used to determine soil chroma and value. Soil pits
were prepared to a depth of 12 inches. Dry soils were moistened to obtain the most accurate color.
In general, soils from test pits were determined to be hydric if they exhibited redoximorphic
features (e.g., redox concentrations, redox depletions, reduced matrix or depleted matrix).
Hydrology
In accordance with the guidelines prescribed in the Arid West supplement (ACOE 2008),
wetland hydrology indicators are separated into four major groups: A, B, C, and D. Group A
indicators are based on direct observations of surface flow, ponding, and soil
saturation/groundwater. Group B indicators consist of evidence that the project area has been or
is currently subjected to ponding—including, but not limited to, water marks, drift deposits, and
sediment deposits. Group C indicators include signs of previous and/or current saturation,
including oxidized rhizospheres surrounding living roots and the presence of reduced iron or
sulfur, both of which are indicative of extended periods of soil saturation. Group D indicators
consist of "vegetation and soil features that are indicative of current rather than historic wet
conditions and include a shallow aquitard and results of the Facultative (FAC)-Neutral test"
(ACOE 2008). Each group is subdivided into primary and secondary categories based on their
frequency and reliability to occur in the Arid West region.
5.2.5 Survey Limitations
Limitations of the survey include a diurnal bias and the absence of trapping for small mammals,
reptiles, and amphibians. The survey was conducted during the daytime to maximize the
detection of most animals. Birds represent the largest component of the vertebrate fauna, and
because most birds are active in the daytime, diumal surveys maximize the number of bird
observations. Conversely, diurnal surveys usually result in few observations of mammals, many
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of which may only be active at night. In addition, many species of reptiles and amphibians are
secretive in their habits and are difficult to observe using standard meandering transects.
The survey was conducted during the winter season, which resulted in detection and
identification of most perennial plant species that occur in the area. However, spring and summer
blooming herbaceous plants would not have been observed. The purpose of the field survey was
to determine the likelihood of occurrence of any special-status plant or wildlife species based on
the presence/absence of suitable habitat and other natural history elements that might predict
their occurrence.
6.0 RESULTS
6.1 Vegetation Communities, Land Covers, and Floral Diversity
Based on species composition and general physiognomy, four native plant communities and three
non-native plant communities or land cover types were observed within the project area. The
Hoover/Lagoon project area is located within and surrounded by developed lands, coastal sage scmb
(including disturbed), non-native grasslands, disturbed habitat, beach, open water, and coastal
brackish marsh. The Highland/Adams project area is located within and surrounded by developed
lands to the north and east and coastal sage scmb from Adams Street to the lagoon. Of these
communities, coastal brackish marsh and coastal sage scmb are the only special-status communities.
Acreages for the seven vegetation communities and land cover types are provided in Table 2.
Table 2
Vegetation Communities and Land Cover Types within the Project Area
Vegetation Community/Land
Cover Type Hoover/Lagoon Highland/Adams Total Acreage
Open Water 1 92 — 1 92
Beach 0.47 — 0.47
Coastal Bracl<ish IVIarsh 0.06 — 0.06
Coastal Sage Scrub (Including
Disturbed)
0.76 2.92 3.68
Non-native Grassland 1.43 — 1.43
Disturbed Habitat 2.68 — 2.68
Developed 3.66 3.78 7.44
Total' 10.98 6.69 17.68
'Totals may not sum due to rounding.
DUDEK 22
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6.1.1 Open Water-64100
This habitat type refers to the lagoon area beyond the shore/beach that permanently contains
water and does not contain emergent vegetation. A total of 1.92 acres of open water is mapped
within the Hoover/Lagoon project area.
6.1.2 Beach-64400
According to Draft Vegetation Communities of San Diego County (Oberbauer et al. 2008), beach
is described as sandy and/or cobbly habitat on coastal strands, lagoons, or lakes. Ocean beaches
are a shoreline feature of deposited sand formed by waves and tides off the coast. Beaches on
lakes may be a result of waves, disturbance, or geological formations. These are mainly
unvegetated areas; however, upper portions may be thinly populated with herbaceous species.
On site, the transitional zone between the lagoon and vegetation is mapped as beach. This area
lacks vegetation and is composed of sandy soils. A total of 0.47 acre of beach is mapped within
the Hoover/Lagoon project area.
6.1.3 Coastal Brackish IVIarsh - 52200
Coastal brackish marsh is dominated by perennial, emergent, herbaceous monocots to 2 meters
(6.5 feet) tall, and cover is often complete and dense. This vegetation community is similar to
salt and freshwater marshes and contains some plants characteristic of each; however, the water
in the lagoon is brackish from both freshwater and ocean inputs. Salinity may vary considerably
within this area and may increase at high tide or during seasons of low freshwater runoff or both.
A small patch of coastal brackish marsh is located on 0.062 acre within the Hoover/Lagoon
project area. Species within this vegetation community include salt grass (Distichlis spicata),
Virginia glasswort (Salicornia virginica), California seablite (Suaeda californica), and
southwestern spiny msh (Juncus acutus ssp. leopoldii).
6.1.4 Coastal Sage Scrub (including disturbed) - 32500
Coastal sage scrub is composed of a variety of soft, low shrubs, characteristically dominated by
drought-deciduous species such as California sagebrush (Artemisia californica), flat-top
buckwheat (Eriogonum fasciculatum), and sages (Salvia spp.), with scattered evergreen shrubs,
including lemonadeberry (Rhus integrifolia) and laurel sumac (Malosma laurina). It typically
develops on xeric slopes (Oberbauer et al. 2008).
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Coastal sage scrub and all its variants generally are recognized as sensitive plant communities by
local, state, and federal resource agencies. It supports a diversity of sensitive plants and animals,
and it is estimated that it has been reduced by 75% to 80% of its historical coverage throughout
Southern Califomia. It is the focus of the current State of Califomia Natural Communities
Conservation Planning Program (NCCP).
Both the Hoover/Lagoon and Highland/Adams project areas support coastal sage scrub
vegetation (Figures 4a and 4b). There are two patches of coastal sage scrub located within the
Hoover/Lagoon project area (totaling 0.76 acre), and they include both undisturbed and disturbed
coastal sage scrub. Undisturbed coastal sage scrub is dominated by California sagebrush and
laurel sumac. Regions mapped as disturbed coastal sage scrub contain few shmbs and appear to
have been mowed or cleared. Hottentot fig (Carpohrotus edulis) and non-native grasslands from
surrounding areas encroach upon the coastal sage scrub found within the Hoover/Lagoon project
area. Almost the entire Highland/Adams project area south of Adams Street is mapped as coastal
sage scrub; this area totals 2.92 acres. This project area is dominated by Califomia sagebmsh and
laurel sumac; thickleaf yerba santa (Eriodictyon crassifolium) is also present throughout much of
the project area.
6.1.5 Non-native Grassland - 42200
Non-native grassland contains a dense-to-sparse cover of annual grasses and is often associated
with numerous species of showy-flowered, native annual forbs (Oberbauer et al. 2008); the
presence of wild oat (Avena spp.), bromes (Bromus spp.), filaree (Erodium spp.), and mustards
(Brassica spp.) are common indicators of this community in San Diego County. Non-native
grassland may occur where disturbance by maintenance (mowing, scraping, disking, spraying,
etc.), grazing, repetitive fire, agriculture, or other mechanical disruption has altered soils and
removed native seed sources from areas formerly supporting native vegetation. Non-native
grassland typically occurs adjacent to roads or other developed areas where there has been some
historic disturbance. Non-native grassland may support sensitive plant and animal species and
provide valuable foraging habitat for raptors.
On site, non-native grassland occurs on the north and south side of Adams Street within the
Hoover/Lagoon project area and totals 1.43 acres. These areas are dominated by non-native
species including red brome (Bromus madritensis ssp. rubens), slender oat (Avena barbata), and
filaree (Erodium botrys and E. cicutarium). Some native annual forbs including cryptantha
(Cryptantha spp.) and miniature suncup (Camissonia micrantha) are also present.
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6.1.6 Disturbed Habitat -11300
Disturbed habitat is characterized by predominately non-native species introduced and
established through human action. These areas have been physically disturbed and are no longer
recognizable as a native or naturalized vegetation association, but continue to retain a soil
substrate (Oberbauer et al. 2008). The disturbed habitat within the Hoover/Lagoon project area,
totaling 2.68 acres, is primarily dominated by Hottentot fig. The disturbed habitat from Hoover
Street to the lagoon has been subject to grading in the past and currently contains straw waddles
for erosion control. Some native vegetation has begun to establish in the area, including Menzies'
goldenbush (Isocoma menziesii) and big saltbush (Atriplex lentiformis); however, these shrubs
are scattered and do not provide enough cover to be categorized into a vegetation community.
6.1.7 Developed - 12000
Developed areas include areas that have been constructed upon or otherwise physically altered to
an extent that native vegetation is no longer supported. Developed land is characterized by
permanent or semipermanent structures, pavement or hardscape, and landscaped areas that often
require irrigation (Oberbauer et al. 2008). Within both project areas, developed areas include
roads, homes, and associated non-native landscaping. A total of 3.66 acres is developed in the
Hoover/Lagoon project area and 3.78 acres within the Highland/Adams project area.
6.1.8 Floral Diversity
A total of 34 species of vascular plants, 23 native (68%) and 11 non-native (32%), was recorded
within the project areas (Appendix A). The recorded flora of the site is limited because surveys
were conducted during winter and fall, and vegetation communities within the project area are
limited in diversity and extent.
6.2 Wildlife
Birds
Twelve bird species were observed during the survey visit (Appendix B). The diversity of birds
is limited due to the small amount of habitat, relatively low habitat quality, and small size of the
project area. The coastal sage scrub and non-native grassland on site provide habitat for a variety
of birds, including black phoebe (Sayornis nigricans), lesser goldfinch (Spinus psaltria),
Bewick's wren (Thryomanes bewickii), Anna's hummingbird (Calypte anna), and yellow-
rumped warbler (Dendroica coronata). The federally threatened coastal Califomia gnatcatcher
(Polioptila californica californica) is known to occur near the project area and is presumed
present within coastal sage scrub found in the project area. The coastal brackish marsh, beach,
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and open water areas provide habitat for a number of birds, including the CDFG Species of
Special Concem (SSC) American white pelican (Pelecanus erythrorhynchos), killdeer
(Charadrius vociferus), spotted sandpiper (Actitis macularius), and American coot (Fulica
americana). One Califomia brown pelican (Pelecanus occidentalis californicus), a CDFG fully
protected species, was observed foraging in the lagoon during surveys, but was not recorded
within the project area.
Reptiles and Amphibians
No reptile species were observed on site. However, reptiles common in the area and likely to
occur on site include side-blotched lizard (Uta stansburiana), western fence lizard (Sceloporus
occidentalis), gopher snake (Pituophis melanoleucus), red-diamond rattlesnake (Crotalus ruber),
coachwhip (Masticophis flagellum), and common kingsnake (Lampropeltis getulus).
No amphibian species were observed during the survey; however, one or more of the following
species may occur on site: garden slender salamander (Batrachoseps attenuatus), western toad
(Bufo boreas), and Pacific treefrog (Hyla regilla).
Diversity of reptiles and amphibians is low in the project areas due to low habitat quality, limited
availability of suitable habitat, and the likely negative effects of the adjacent urban development.
Mammals
Mammal species, or their sign, observed on site during the survey include brush rabbit
(Sylvilagus bachmani) and California ground squirrel (Spermophilus beecheyi). Mammals not
observed on site but likely to be present include Botta's pocket gopher (Thomomys bottae),
Califomia mouse (Peromyscus californicus), Califomia pocket mouse (Chaetodipus
californicus), deer mouse (Peromyscus maniculatus), Dulzura Califomia pocket mouse
(Chaetodipus californicus femoralis), cactus mouse (Peromyscus eremicus), woodrat (Neotoma
spp.), Virginia opossum (Didelphis virginiana), striped skunk (Mephitis mephitis), and coyote
(Canis latrans).
Invertebrates
No invertebrate species were observed during the survey visit. A number of intertidal species is
presumed to occur within the Hoover/Lagoon project area, especially within the beach habitat.
Terrestrial invertebrates not observed on site but likely to be present include cabbage butterfly
(Pieris rapae), west coast lady (Vanessa annabella), pygmy blue (Brephidium exile), fiery
skipper (Hylephila phyleus), salt marsh skipper (Panoquina errans), and buckeye (Junonia
coenia).
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6.3 Special-Status and/or Regulated Resources
Special-status biological resources are defined as follows: (1) species that have been given
special recognition by federal, state, or local conservation agencies and organizations due to
limited, declining, or threatened population sizes; (2) species and habitat types recognized by
local and regional resource agencies as sensitive; (3) habitat areas or plant communities that are
unique, are of relatively limited distribution, or are of particular value to wildlife; and (4)
wildlife corridors and habitat linkages. Regulated biological resources may or may not be
considered special status, but they meet jurisdictional determination criteria under any of several
local, state, and/or federal laws. Such resources may be species locations, habitat, or topographic
features such as drainage courses.
The following discussion addresses special-status plant and wildlife species. The nature of the
project area is such that special-status habitat areas or plant communities are not of substantial
extent within the project area to be of considerable value to wildlife. There are no corridors or
linkages within the project area and, as such, do not warrant discussion.
6.3.1 Special-status Plant Species
Southwestern spiny rush, a CRPR 4.2 species, was the only special-status plant species that was
observed during focused surveys. One individual was mapped within coastal sage scrub in the
Hoover/Lagoon project area (Figure 4a). Another individual was mapped south of the project
area as well.
Other special-status species that occur adjacent to the project study area or have the potential to
occur within the project study area, based on the presence of suitable habitat and soils, as well as
on occurrence records based on a CNPS (CNPS 2012) and Califomia Natural Diversity Database
(CNDDB; CDFG 2012a) search, are listed in Table 3.
6.3.2 Special-status Wildlife Species
American white pelican (Pelecanus erythrorhynchos), a CDFG SSC, was recorded within the
Hoover/Lagoon project area. One additional special-status bird species, brown pelican
(Pelecanus occidentalis californicus), a CDFG fully protected and HMP covered species, was
observed outside the limits of the project area, but was presumed to utilize the project area. The
brown pelican was observed foraging in the lagoon, and this species likely is found within the
Hoover/Lagoon project area. Coastal Califomia gnatcatcher, a federally threatened species, is
also presumed to utilize the coastal scrub habitat within the project area, and is known from the
vicinity of the project area.
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The observed and other special-status species that have the potential to occur within the site are
listed in Table 4. The species' potential to occur is based on the presence of suitable habitat and
distribution, as well as their occurrence based on the CNDDB search (CDFG 2012a). This list
includes species listed by the state and federal government as threatened or endangered, those
species proposed for state and/or federal listing or candidates; and those wildlife species
generally considered to be rare or declining, state species of concern, state regulated species,
other federal status species.
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Abronia villosa var. aurita chaparral sand-verbena None/None 1B.1 Chaparral, coastal scrub, desert dunes/annual
herb/January-September/246 to 5,250 feet
Low potential to occur.
Although there is suitable
coastal scrub habitat on site,
the project area is located
below the elevation range for
this species.
Acantfiomintha ilicifolia San Diego thorn-mint FT/SE/NE^ 1B.1 Chaparral, coastal scrub, valley and foothill
grassland, vernal pools; clay/annual herb/April-
June/30 to 3,150 feet
Low potential to occur. There is
suitable vegetative habitat but
not suitable clay soils.
Adolphia californica California adolphia None/
None/None
2.1 Chapan'al, coastal scrub, valley and foothill
grassland; clay/deciduous shrub/December-
May/I 50 to 2,430 feet
Absent. There is suitable
vegetative habitat but not
suitable clay soils and this
species would have been
obsen/ed during surveys.
Ambrosia pumila Dwarf burr ambrosia FE/None/
Covered^, NE
1B.1 Chapan-al, coastal scrub, valley and foothill
grassland, vernal pools; often disturbed,
sometimes alkaline/rhizomatous herb/IVIay-
October/60 to 1,360 feet
Not observed during previous
surveys in the area. Low
potential to occur. Coastal
scrub may provide suitable
habitat, but suitable alkaline
soils are not present.
Arctostapiiylos glandulosa ssp.
crassifolia
Del Mar manzanita FE/None/
Covered^, NE
1B.1 Maritime chaparral; sandy/evergreen
shrub/December-June/< 1,200 feet.
Absent. This species would
have been observed if present.
Astragalus tenerwar. titi Coastal dunes milk-vetch FE/SE/None 1B.1 Coastal bluff scrub, coastal dunes, coastal
prairie; mesic, often vemally mesic/annual
herb/March-May/< 170 feet
Low potential to occur. There
are no suitable mesic
conditions within the project
area.
o
c
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Atriplex coulteri Coulter's saltbush None/
None/None
1B.2 Coastal bluff scrub, coastal dunes, coastal
scrub, valley and foothill grassland; alkaline or
clay/perennial herb/March-October/IOto 1,500
feet
Low potential to occur. There is
suitable vegetative habitat but
not suitable soils.
Atriplex pacifica South Coast saltscale None/
None/None
1B.2 Coastal bluff scrub, coastal dunes, coastal
scrub, playas/annual herb/March-October/<
500 feet
Low potential to occur. Coastal
scrub may provide suitable
habitat.
Atriplex serenanayar. davidsonii Davidson's saltscale None/
None/None
1B.2 Coastal bluff scrub, coastal scrub; alkaline/
annual herb/April-October/30 to 650 feet.
Low potential to occur. There is
suitable vegetative habitat but
not suitable soils.
Baccharis vanessae Encinitas baccharis FT/SE/
Covered2, NE
1B.1 Chapan'al, cismontane woodland; sandstone/
deciduous shrub/August-November/200 to
2,400 feet
Low potential to occur. There is
no suitable habitat on site and
the project area is located
below the elevation range for
this species.
Bergerocactus emoryi Golden-spined cereus None/
None/None
2.2 Closed-cone conifer forest, chaparral, coastal
scrub; sandy/shrub/May-June/10 to 1,300 feet
Absent. This species would
have been observed if present.
Bloomeria clevelandii San Diego goldenstar None/None/NE 1B.1 Chapan-al, coastal scrub, valley and foothill
grassland, vemal pools; clay/bulbiferous herb/
April-May/160 to 1,550 feet
Low potential to occur. There is
suitable vegetative habitat but
not suitable clay soils.
Brodiaea filifolia Thread-leaved brodiaea FT/SE/Covered,
NE
1B.1 Chaparral (openings), cismontane woodland,
coastal scrub, playas, valley and foothill
grassland, vemal pools; often clay/bulbiferous
herb/March-June/400 to 2,800 feet
Low potential to occur. There is
suitable vegetative habitat but
not suitable clay soils. In
addition, the project area is
located below the elevation
range for this species.
)
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Brodiaea orcuttii Orcutt's brodiaea None/None/NE 1B.1 Closed-cone conifer forest, chaparral,
cismontane woodland, meadows and seeps,
valley and foothill grassland, vernal pools;
mesic, clay, sometimes serpentine/t)ulbiferous
herb/May-July/100-5,550 feet
Low potential to occur. There
are no suitable vegetative
habitat or clay soils.
Camissonia lewisii Lewis's evening
primrose
None/None/None 3 Coastal bluff scrub, cismontane woodland,
coastal dunes, coastal scrub, valley and foothill
grassland; sandy or clay/annual herb/March-
May (June)/<1,000 feet
Low potential to occur. There is
suitable vegetative habitat but
not suitable soils.
Ceanothus verrucosus Wart-stemmed
ceanothus
None/None/
Covered^
2.2 Chaparral/evergreen shrub/December-May/<
1,250 feet
Absent. This species would
have been observed if present.
Centromadia parryi spp. australis Southern tarplant None/None/
None
1B.1 Marshes and swamps (margins), valley and
foothill grassland (vemally mesic), vernal
pools/annual herb/May-November/< 400 feet
Low potential to occur. There is
no suitable habitat within the
project area.
Centromadia pungensssp. laevis Smooth tarplant None/
None/None
1B.1 Chenopod scrub, meadows and seeps, playas,
riparian woodland, valley and foothill grassland;
alkaline/annual herb/April-September/<1580
feet
Low potential to occur. There is
no suitable habitat within the
project area.
Chaenactis glabriuscula var.
orcuttiana
Orcutt's pincushion None/
None/None
1B.1 Coastal bluff scrub, coastal dunes/annual herb/
January -August/10 to 330 feet
Moderate potential to occur
within the coastal scrub on site.
Chorizanthe orcuttiana Orcutt's spineflower FE/SE/Covered,
NE
1B.1 Maritime chaparral, closed-cone conifer forest,
coastal scrub; sandy soils/annual herb/March-
May/< 400 feet
Low potential to occur; suitable
sandy soils within coastal sage
scrub on site, but species is
known from only one
occurrence in San Diego
County.
Chorizanthe polygonoidesyar.
longispina
Long-spined spineflower None/
None/None
1B.2 Chaparral, coastal scrub, meadows and seeps,
valley and foothill grassland; often clay/annual
herb/April-July/100 to 5,000 feet
Low potential to occur. There is
suitable vegetative habitat but
not suitable clay soils.
o
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Clarkia delicata Delicate clarkia None/
None/None
1B.2 Chaparral, cismontane woodland/annual herb/
April-June/770 to 3.300 feet
Low potential to occur. There is
suitable vegetative habitat but
the project area is located
below the elevation range for
this species.
Comarostaphylis diversifolia ssp.
diversifolia
Summer-holly None/None/
Covered^
1B.2 Chaparral, cismontane woodland/evergreen
shrub/April-June/100-1,800 feet
Absent. This species would
have been observed if present.
Corethrogyne filaginifolia ^ax.
incana
San Diego sand aster None/
None/None
1B.1 Chapan'al, coastal bluff scrub, coastal scrub/
perennial herb/June-September/10-380 feet
Absent. This genus would have
been identified if present.
Corethrogyne filaginifolia var.
linifolia
Del Mar Mesa sand aster None/None/
Covered2, NE
18.1 Coastal bluff scrub, maritime chaparral
(openings), coastal scrub; sandy/perennial
herb/May-September/10 to 380 feet
Absent. This genus would have
been identified if present.
Dudleya blochmaniae spp.
blochmaniae
Blochman's dudleya None/None/NE 1B.1 Chaparral, coastal bluff scrub, coastal scrub,
valley and foothill grassland, rocky; often clay
or serpentinite/perennial herb/April to June/15
to 1,500 feet
Low potential to occur. There is
suitable vegetative habitat, but
the project area lacks suitable
soils.
Dudleya brevifolia Short-leaved dudleya None/SE/NE 1B.1 Maritime chaparral (openings), coastal scrub;
Torrey sandstone/perennial herb/April/100-800
feet
Low potential to occur. There is
suitable vegetative habitat, but
the Project Area lacks suitable
soils.
Dudleya multicaulis Many-stemmed dudleya None/
None/None
1B.2 Chapan'al, coastal scrub, valley and foothill
grassland; often clay/perennial herb/April-July/
50-2,600 feet
Low potential to occur. There is
suitable vegetative habitat, but
the project area lacks suitable
soils.
Dudleya variegata Variegated dudleya None/
None/None
1B.2 ChapaTal, cismontane woodland, coastal
scrub, valley and foothill grassland, vernal
pools; clay/perennial herb/April-June/< 1,900
feet
Low potential to occur. There is
suitable vegetative habitat, but
the project area lacks suitable
soils.
c)
)
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Dudleya viscida Sticky dudleya None/None/
Covered^
1B.2 Coastal bluff scrub, chapan'al, coastal scrub;
rocky/perennial heriD/May-June/30 to 1,800
feet
Low potential to occur. There is
suitable vegetative habitat, but
the project area lacks suitable
soils.
Eryngium aristulatum var. parishii San Diego button-celery FE/SE/
Covered^, NE
1B.1 Coastal scrub, valley and foothill grassland,
vernal pools, mesic/annual-perennial herb/
April-June/60 to 2,000 feet
Low potential to occur. There
are no suitable mesic
conditions within the project
area.
Eryngium pendletonensis Pendleton button-celery None/
None/None
1B.1 Coastal bluff scrub, valley and foothill
grassland, vemal pools; clay, vemally mesic/
perennial herb/April-June/50 to 360 feet
Low potential to occur. There
are no suitable mesic
conditions or clay soils within
the project area.
Erysimum ammophilum Sand-loving wallflower None/
None/None
1B.2 Maritime chaparral, coastal dunes, coastal
scrub; sandy, openings/ perennial herb/
February-June/<200 feet
Moderate potential to occur
within the coastal scrub on site;
suitable sandy soils present.
Euphorbia misera Cliff spurge None/None/
Covered
2.2 Coastal bluff scrub, coastal scrub, Mojavean
desert scrub; rocky/shrub/December-August/
30 to 1,650 feet
Low potential to occur. There is
suitable vegetative habitat, but
the project area lacks suitable
soils.
Ferocactus viridescens San Diego barrel cactus None/None/
Covered'
2.1 Chaparral, coastal scrub, valley and foothill
grassland, vemal pools/perennial stem
succulent/May-June/< 1,500 feet
Absent. This species would
have been obsen/ed if present.
Hazardia orcuttii Orcutt's hazardia FC/ST/Covered,
NE
1B.1 Maritime chaparral, coastal scrub; often clay/
evergreen shrub/August-October/250 to 280
feet
Absent. This species would
have been observed if present.
Heterotheca sessiliflora ssp.
sessiliflora
Beach goldenaster None/
None/None
1B.1 Coastal dunes, coastal scrub, coastal
chaparral/annual herb/July to November/< 35
feet
Moderate potential to occur
within the coastal scrub on site;
suitable sandy soils are
present.
()
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Horkelia truncata Ramona horkelia None/
None/None
1B.3 Chaparral, cismontane woodland, clay,
gabbroic/perennial herb/May-June/1,300 to
4,300 feet
Low potential to occur. There is
suitable vegetative habitat, but
the project area lacks suitable
soils.
Juncus acutus ssp. leopoldii southwestem spiny rush None/None/
None
4.2 Coastal dunes, meadows and seeps (alkaline),
coastal marshes and swamps; mesic/
rhizomatous herb/May-June/9 to 2,950 feet.
Obsen/ed on site within coastal
sage scrub in the
Hoover/Lagoon project area.
One individual was obsen/ed
adjacent to the impact area, at
the periphery of the 250-foot
buffer. Another individual was
obsen/ed offsite, south ofthe
impact area.
Isocoma menziesiiyar.
decumbens
Decumbent goldenbush None/
None/None
1B.2 Chaparral, coastal scrub (sandy, often
disturbed areas)/shrub/April-November/30 to
450 feet
Absent. This species would
have been obsen/ed if present.
Iva hayesiana San Diego marsh-elder None/None/
Covered^
2.2 Marshes and swamps, playas/ perennial herb/
April-November/30 to 1650 feet
Absent. This species would
have been obsen/ed if present.
Lasthenia glabrata ssp. coulteri Coulter's goldfields None/
None/None
1B.1 Saltwater marsh and swamps, playas, vernal
pools/annual herb/February-June/<4,000 feet
Moderate potential to occur
within the coastal brackish
marsh on site.
Lepidium virginicum Mar.
robinsonii
Robinson's pepper-grass None/
None/None
1B.2 Chaparral, coastal scmb/annual herb/January-
July/< 2,900 feet
Moderate potential to occur
within the coastal scrub on site.
Leptosyne maritima Sea dahlia None/
None/None
2.2 Coastal bluff scrub, coastal scrub/perennial
herb/March-May/I 5 to 500 feet
Moderate potential to occur
within the coastal scmb on site.
Acmispon prostrates [Lotus
nuttallianus]
Nuttall's acmispon [lotus] None/
None/None
1B.1 Coastal dunes, coastal scrub; sandy/annual
herb/March-June/< 35 feet
Moderate potential to occur
within the coastal scrub on site.
DUDEK 34
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Monardella hypoleuca ssp. lanata Felt-leaved monardella None/
None/None
1B.2 Chaparral, cismontane woodland/rhizomatous
herb/June-August/1,000 to 3,600 feet
Low potential to occur. There is
no suitable habitat; project area
located below the elevation
range for this species.
Myosurus minimus ssp. apus Little mousetall None/
None/Covered^,
NE
3.1 Vernal pools, valley and foothill grassland;
alkaline/annual herb/March-June/60 to 2,100
feet
Low potential to occur. There is
no suitable habitat within the
project area.
Nama stenocarpum Mud nama None/
None/None
2.2 Marshes and swamps, lake margins,
riverbanks/annual-perennial herb/January-Juiy/
15 to 1,650 feet
Low potential to occur. There is
no suitable habitat within the
project area.
Navarretia fossalis Spreading navarretia FT/None/
Covered^, NE
1B.1 Chenopod scrub, shallow freshwater marshes
and swamps, playas, vernal pools/annual herb/
April-June/100 to 4,300 feet
Low potential to occur. There is
no suitable habitat within the
project area.
Nemacaulis denudata var.
denudata
Coast woolly-heads None/
None/None
1B.2 Coastal dunes/annual herb/April-September/<
330 feet
Low potential to occur. There is
no suitable habitat within the
project area.
Molina cismontana Chaparral nolina None/
None/None
1B.2 Chaparral, coastal scrub; sandstone or gabbro/
evergreen shrub/May-July/460 to 4,200 feet
Absent. This species would
have been obsen/ed if present.
Orcuttia californica California Orcutt grass FE/SE/
Covered^, NE
1B.1 Vemal pools/annual herb/April-August/50 to
2,200 feet
Low potential to occur. There is
no suitable habitat within the
project area.
Phacelia stellaris Brand's phacelia FC/None/None 1B.1 Coastal dunes, coastal scrub/annual herb/
March-June/<1,300 feet
Low potential to occur. Suitable
habitat is present within the
coastal scrub on site; however,
the closest species records are
in Camp Pendleton and San
Diego Bay.
Pinus torreyanaspp. torreyana Torrey pine None/None/
Covered^
1B.2 Closed-cone conifer forest, chaparral;
sandstone/evergreen tree/NA/250 to 550 feet
Absent. This species would
have been obsen/ed if present.
o
DUDEK 35
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Table 3
Special-Status Plant Species Observed or Potentially Occurring on the Project Site
Scientific Name Common Name
Status
Federal/
State/City CNPS
Primary Habitat Associations/Life Form/
Blooming Period/Elevation Range
Status On Site or Potential to
Occur
Quercus dumosa Nuttall's scrub oak None/None/
Covered
1B.1 Chaparral, coastal scrub, closed-cone
coniferous forest; sandy, clay loam/evergreen
shrub/February-April/50 to 1,300 feet
Absent. This species would
have been obsen/ed if present.
Quercus engelmannii Engelmann oak None/None/
Covered'
4.2 Chaparral, cismontane woodland, riparian
woodland, valley and foothill grassland/
deciduous tree/March-June/400 to 4,250 feet
Absent. This species would
have been obsen/ed if present.
Stemodia durantifolia Purple stemodia None/
None/None
2.1 Sonoran desert scrub; often mesic, sandy/
perennial herb/January-December/600 to
1,000 feet
Low potential to occur. There is
no suitable habitat within the
project area.
Suaeda esteroa Estuary seablite None/
None/None
1B.2 Coastal salt marshes and swamps/perennial
herb/May to October (Jan)/< 20 feet
Absent. This species would
have been obsen/ed if present.
Tetracoccus dioicus Parry's tetracoccus None/
None/None
1B.2 Chaparral, coastal scmb/deciduous shrub/
April-May/550 to 3,300 feet
Absent. This species would
have been obsen/ed if present.
)
This table includes all HIVIP species and CNPS and CNDDB species within an 8-quad search of the surrounding quadrangles: Las Pulgas Canyon, Morro Hill, Bonsall, Oceanside, San Luis Rey, San
Marcos, Encinitas, and Rancho Santa Fe.
Legend
FE: Federally listed as endangered
FT: Federally listed as threatened
FC: Federal species of concern
SE: State-listed as endangered
ST: State-listed as threatened
)
HIVIP Status:
Covered: Take of species permitted under HMP
Take of species permitted subject to HMP conditions for Narrow Endemic species
Take of species permitted subject to HMP conditions for Obligate Wetlands species
Species Coverage contingent on other MHCP Subarea Plans being permitted (List 2)
Species Coverage contingent on funding for management of conserved areas (List 3)
NE:
OW:
1
2
DUDEK 36
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Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi Primary Habitat Associations Status On Site or Potential to Occur
Amptiibiens end Reptiles
Anaxyrus californicus arroyo toad FE/SSC/NE Stream channels for breeding (typically 3rd
order); adjacent stream terraces and
uplands for foraging and wintering
Not expected to occur due to lack of suitable stream
habitat.
Aspidoscelis hyperythra orange-throated
whiptail
None/SSC/ Covered Coastal sage scrub, chaparral, grassland,
juniper and oak woodland
Moderate potential; suitable habitat is present.
Aspidoscelis tigris
stejnegeri
coastal whiptail None/None/None Coastal sage scrub, chaparral; sandy
areas, gravelly arroyos, or washes
Moderate potential; suitable habitat is present.
Charina trivirgata rosy boa None/None/None Rocky chaparral, coastal sage scrub, oak
woodlands, desert and semi-desert scrub
Low potential; although suitable vegetative habitat is
present, rocky habitat is not present. In addition, current
disturiDance and nearby development may preclude
their presence.
Crotalus niber red-diamond
rattlesnake
None/SSC/None Variety of shrub habitats where there is
heavy brush, large rocks, or boulders
Low potential; although suitable vegetative habitat is
present, rocky habitat is not present. In addition, current
disturtjance and nearby development may preclude
their presence.
Diadophis punctatus
similis
San Diego
ringneck snake
None/None/None Open, rocky areas in moist habitats near
intemiittent streams: marsh, riparian
woodland, sage scrub
Low potential to occur due to lack of suitable stream,
riparian habitat, or othenwise moist microhabitat
features.
Emys marmorata westem pond
turtle
None/SSC/None Slow-moving permanent or intermittent
streams, ponds, small lakes, resen/oirs with
emergent basking sites; adjacent uplands
used during winter
Not expected to occur due to lack of suitable stream or
pond habitat.
Phrynosoma blainvillii coast horned
lizard
None/SSC/None Coastal sage scrub, annual grassland,
chapan-al, oak and riparian woodland,
coniferous forest
Low potential; not obsen/ed; although suitable habitat is
present, current disturbance and nearby development
may preclude their presence.
DUDEK 37
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Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMP' Primary Habitat Associations Status On Site or Potential to Occur
Plestiodon skiltonianus
interparietalis
Coronado Island
skink
None/SSC/None Grassland, woodlands, pine forests,
chaparral, especially in open sunny areas
such as clearings and the edges of creeks
and rivers; prefers rocky areas near
streams with lots of vegetation; also found
in areas away from water
Low potential; although suitable vegetative habitat is
present, appropriate litter or cover is generally not
present. In addition, current disturbance and nearby
development may preclude their presence.
Salvadora hexalepis
virgultea
coast patch-nosed
snake
None/SSC/None Chaparral, washes, sandy flats, rocky areas Low potential; although suitable vegetative habitat is
present, rocky habitat is not present. In addition, current
disturbance and nearby development may preclude
their presence.
Spea hammondii westem spadefoot None/SSC/None Most common in grasslands, coastal sage
scrub near rain pools or vernal pools;
riparian habitats
Not expected to occur due to lack of suitable pools or
riparian habitats.
Thamnophis hammondii two-striped garter
snake
None/SSC/None Marshes, meadows, sloughs, ponds, slow-
moving water courses
Not expected to occur due to lack of suitable pond or
stream habitat.
Thamnophis sirtalis ssp. south coast garter
snake
None/SSC/None Utilizes a wide variety of habitats - forests,
mixed woodlands, grassland, chaparral,
farmlands, often near ponds, marshes, or
streams
Not expected to occur due to lack of suitable habitat.
Birds
Accipiter cooperii
(nesting)
Cooper's hawk None/WL/Covered Riparian and oak woodlands, montane
canyons
Not expected to nest due to lack of suitable habitat.
Aimophila ruficeps
canescens
southern
California rufous-
crowned sparrow
None/WL/Covered Grass-covered hillsides, coastal sage
scrub, chapan'al with boulders and outcrops
Low potential; although suitable vegetative habitat is
present, boulders and outcrops not present. In addition,
current disturbance and nearby development may
preclude their presence.
DUDEK 38
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Corrugated Metal Pipe Replacement Program -
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Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi Primary Habitat Associations Status On Site or Potential to Occur
Charadrius
alexandrinus nivosus
(nesting)
western snowy
plover (coastal
population)
FT, BCC/SSC/
Covered
Nests primarily on coastal beaches, in flat
open areas, with sandy or saline substrates;
less commonly in salt pans, dredged spoil
disposal sites, dry salt ponds and levees
Low potential to occur due to lack of suitable habitat.
The beach within the project area is narrow and
provides little habitat for nesting. Historical data from
the CNDDB was recorded within the lagoon in 1978
(CDFG 2012a).
Circus cyaneus northern harrier None/SSC/None Open wetlands (nesting), pasture, old fields,
dry uplands, grasslands, rangelands,
coastal sage scrub
Low potential; grassland on site is of small extent and
of little foraging value. In addition, adjacent
development may preclude occurrence.
Dendroica petechia
brewsteri
yellow warbler BCC/SSC/None Nests in lowland and foothill riparian
woodlands dominated by cottonwoods,
alders and willows; winters in a variety of
habitats
Not expected to occur due to lack of suitable riparian
woodland habitat.
Elanus leucurus white-tailed kite None/FP/None Open grasslands, savanna-like habitats,
agriculture, wetlands, oak woodlands,
riparian
Low potential; grassland on site is of small extent and
of little foraging value. No breeding opportunities. In
addition, adjacent development may preclude
occurrence.
Empidonax traillii
extimus (nesting)
southwestern
willow flycatcher
FE/SE/Covered Riparian woodlands along streams and
rivers with mature, dense stands of willows
or alders; may nest in thickets dominated by
tamarisk
Not expected to occur due to lack of suitable riparian
habitat.
Eremophila alpestris
actia
California horned
lark
None/WL/None Open habitats, grassland, rangeland,
shortgrass prairie, montane meadows,
coastal plains, fallow grain fields
Low potential; although suitable vegetative habitat is
present. This species may forage in the coastal sage
scrub and ruderal habitat; little suitable nesting habitat
within project area.
Faico peregrinus
anatum
American
peregrine falcon
(FD), BCC/(SD),
FP/Covered
Nests on cliffs, buildings, bridges; forages in
wetlands, riparian, meadows, croplands,
especially where waterfowl are present
Moderate potential; may occur as a winter visitor to
forage in the lagoon. Would not nest. Not obsen/ed
during sun/eys.
DUDEK 39
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o
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Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi Primary Habitat Associations Status On Site or Potential to Occur
Icteria virens (nesting) yellow-breasted
chat
None/SSC/Covered Dense, relatively wide riparian woodlands
and thickets of willows, vine tangles, and
dense brush
Not expected to occur due to lack of suitable riparian
habitaL
Ixobrychus exilis least bittern BCC/SSC/None Dense emergent wetland vegetation,
sometimes interspersed with woody
vegetation and open water
Not expected to occur due to lack of suitable habitat;
suitable habitat may occur elsewhere in the lagoon.
Laterallus jamaicensis
cotumiculus
California black
rail
BCC/ST, FP/None Occurs most commonly in tidal emergent
wetlands dominated by pickleweed, or in
brackish marshes supporting bulrushes in
association with pickleweed; in freshwater,
usually found in bulrushes, cattails, and
saltgrass
Not expected; while suitable habitat is found in the
lagoon, only limited suitable habitat is found within the
project area. Historical records (1973) for this species
are from nearby San Elijo Lagoon (CDFG 2012a);
however, very few of these birds have been obsen/ed
within the county in the last 30 years.
Pandion haliaetus
(nesting)
osprey None/WL/Covered Large waters (lakes, resen/oirs, rivers)
supporting fish; usually near forest habitats,
but widely obsen/ed along the coast
Not expected to nest. No suitable nesting opportunities.
Moderate potential to forage nearby in wetland habitat.
Not obsen/ed during sun/eys.
Passerculus
sandwichensis beldingi
Belding's
savannah sparrow
None/SE/Covered Saltmarsh, pickleweed Low to moderate potential; not obsen/ed; very little
suitable habitat within project area but may be able to
use it for foraging. Known occurrence recorded from the
vicinity of the project area in pickleweed marsh habitat
in 2001 (CDFG 2012a).
Passerculus
sandwichensis rostratus
(wintering)
large-billed
savannah sparrow
None/SSC/Covered Saltmarsh, pickleweed Moderate potential; not obsen/ed; suitable foraging
habitat present. Usually occurs within mixed flocks of
sparrows during the winter.
Pelecanus
erythrorhynchos
(nesting colony)
American white
pelican
None/SSC/None Coastal bays, inlets, estuaries with forage
fish for winter range; breeds on isolated
islands In freshwater lakes and forages on
inland marshes, lakes, or rivers
Not expected to nest. Very rare breeder in county and
not in colonial situations. Recorded foraging in open
water within the Hoover/Lagoon project area.
DUDEK 40
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Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi Primary Habitat Associations Status On Site or Potential to Occur
Pelecanus occidentalis
californicus (nesting
colony and communal
roosts)
Califomia brown
pelican
(FD)/(SD),
FP/Covered
Open sea, large water bodies, coastal bays
and harbors
Not expected to nest orcolonially roost. Unsuitable
Moderate potential to utilize open water in project area;
obsen/ed foraging within lagoon but not within project
area; no nesting or foraging habitat is within the project
area.
Plegadis chihi (rookery
site)
white-faced ibis None/WL/Covered Nests in marsh; winter foraging in shallow
lacustrine waters, muddy ground of wet
meadows, marshes, ponds, lakes, rivers,
flooded fields and estuaries
Not expected to nest. Site does not include suitable
rookery habitat.
Polioptila californica
californica
coastal California
gnatcatcher
FT/SSC/Covered Coastal sage scrub, coastal sage scrub-
chapan'al mix, coastal sage scrub-
grassland ecotone, riparian in late summer
High potential. Suitable coastal sage scrub habitat on
site and in the vicinity of the project area. Known to
occur in the vicinity ofthe project area.
Rallus longirostris
levipes
light-footed
clapper rail
FE/SE, FP/Covered Coastal saltmarsh Low potential; not obsen/ed; no suitable habitat in
project area but may forage adjacent to the lagoon
elsewhere. Known from occurrence data within the
lagoon in 2007 (CDFG 2012a).
Riparia riparia bank swallow None/ST/None Vertical banks or cliffs in lowland areas
along coasts, rivers, streams lakes,
resen/oirs, wetlands
Not expected to occur Potentially suitable habitat
available but limited in extent Historical obsen/ations in
the vicinity along Santa Margarita River are presumed
extirpated (1919,1925) (CDFG 2012a).
Sternula [=Sterna]
antillarum browni
(nesting colony)
Califomia least
tern
FE/SE, FP/Covered Coastal waters, estuaries, large bays and
harbors, mudflats; nests on sandy beaches
Not expected to nest. Not obsen/ed; no nesting habitat
available; may forage in lagoon; may rest on beach
area within project site. Known from occurrence data
within fhe lagoon in 1996 on salt flats (CDFG 2012a).
Thalasseus [=Stema]
elegans (nesting
colony)
elegant tern None/WL/Covered Coastal waters, estuaries, large bays and
harbors, mudflats
Not expected to nest; not obsen/ed; no nesting habitat
available; may forage in lagoon; may rest on beach
area within project site.
DUDEK 41
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o
u
Corrugated Metal Pipe Replacement Program -
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"Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State HMPi Primary Habitat Associations Status On Site or Potential to Occur
Vireo bellii pusillus
(nesting)
least Bell's vireo FE/SE/Covered Nests in southern willow scrub with dense
cover within 1 to 2 meters ofthe ground;
habitat includes willows, cottonwoods,
baccharis, wild blackberry, or mesquite on
desert areas
Not expected to occur; not obsen/ed; no suitable
southern willow scrub habitat in project area.
Mmmsis
Antrozous pallidus pallid bat None/SSC/None Rocky outcrops, cliffs, and crevices with
access to open habitats for foraging
Moderate potential; no suitable rocky outcrops or cliffs
associated with the project area. Open habitats
surrounding the lagoon may be utilized for foraging.
Chaetodipus
californicus femoralis
Dulzura pocket
mouse
None/SSC/None Coastal sage scrub, chapan-al, riparian-
scrub ecotone; more mesic areas
Moderate potential; project area contains moderately
suitable habitat and the species is fairiy common within
the region.
Chaetodipus fallax
fallax
northwestem San
Diego pocket
mouse
None/SSC/None Coastal sage scrub, grassland, sage scrub-
grassland ecotones, sparse chaparral;
rocky substrates, loams, and sandy loams
Low potential; project area contains some suitable
habitat but does not contain required rocky habitat.
Choeronycteris
mexicana
Mexican long-
tongued bat
None/SSC/None Caves, mines, buildings in desert and
montane riparian, desert succulent shrub,
desert scrub, and pinyon-juniper habitats
Not expected to occur; no suitable vegetative habitat or
rocky outcrops or cliffs associated with the project area.
Dipodomys Stephens! Stephens'
kangaroo rat
FE/ST/None Open habitat, grassland, sparse coastal
sage scrub, sandy loam and loamy soils
with low clay content; gentle slopes (<30%)
Not expected to occur due to lack of suitable habitat
and soil types. Outside of range.
Eumops perotis
californicus
westem mastiff
bat
None/SSC/None Roosts in small colonies in cracks and small
holes, seeming to prefer man-made
structures
Moderate potential; no suitable rocky outcrops or cliffs
associated with the project area. Open habitats
surrounding the lagoon may be utilized for foraging.
Lasiunjs cinereus hoary bat None/None/None Woodlands and forests with large trees,
dense foliage
Not expected to occur; no suitable habitat associated
with the project area.
Lasiums xanthinus western yellow
bat
None/SSC/None Valley foothill riparian, desert riparian,
desert wash, and palm oasis.
Not expected to occur; no suitable habitat associated
with the project area.
)
;)
DUDEK 42
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April 2012
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Hoover/Lagoon and Highland/Adams
Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi Primary Habitat Associations Status On Site or Potential to Occur
Lepus californicus
bennettii
San Diego black-
tailed jackrabbit
None/SSC/None Arid habitats with open ground; grasslands,
coastal sage scrub, agriculture, disturbed
areas, rangelands
Low potential; not obsen/ed; although suitable habitat is
present, current disturbance and nearby development
may preclude their presence.
Myotis yumanensis Yuma myotis None/None/None Closely tied to open water, which is used for
foraging; open forests and woodlands are
optimal habitat
Moderate potential; no suitable vegetative habitat or
rocky outcrops or cliffs associated with the project area.
Lagoon may be utilized for foraging.
Neotoma lepida
intermedia
San Diego desert
woodrat
None/SSC/None Coastal sage scrub, chaparral, pinyon-
juniper woodland with rock outcrops, cactus
thickets, dense undergrowth
Not expected; marginal habitat quality and no rocky or
boulder areas.
Nyctinomops
femorosaccus
pocketed free-
tailed bat
None/SSC/None Rocky desert areas with high cliffs or rock
outcrops
Not expected; no suitable rocky outcrops or cliffs
associated with the project area.
Perognathus
longimembris pacificus
Pacific pocket
mouse
FE/SSC/NE Grassland, coastal sage scrub with sandy
soils; along immediate coast
Low potential; within range and suitable habitat;
however, vicinity has been sun/eyed extensively over
the past 15 years and none have been located. The
closest known extant population is on Camp Pendleton.
Taxidea taxus American badger None/SSC/None Dry, open, treeless areas; grasslands and
coastal sage scrub
Not expected; not obsen/ed; although suitable habitat is
present, current disturbance and nearby development
likely preclude their presence.
Fisli
Eucyclogobius
newberryi
tidewater goby FE/SSC/None Low-salinity waters in coastal wetlands Not expected; no suitable habitat in project area
although suitable habitat likely elsewhere in the lagoon.
There are historical records from the eastern end of the
lagoon (1984) (CDFG 2012a).
Gila orcuttii an-oyo chub None/SSC/None Slow-flowing or backwater areas, sand or
mud substrate in cool to warm streams.
Not expected; no suitable stream habitat in project
area.
DUDEK 43
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o
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Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi . Primary Habitat Associations Status On Site or Potential to Occur
Invert^r^es
Branchinecta
sandiegonensis
San Diego fairy
shrimp
FE/None/Covered' Small, shallow vernal pools, occasionally
ditches and road ruts
Not expected; no suitable vemal pool habitat in project
area.
Cicindela senilis frosti senile tiger beetle None/None/None Marine saltmarsh Moderate potential; suitable brackish marsh habitat
within the project area although it is minimal in extent.
No recent records exist for the species near the project
area.
Danaus plexippus monarch butterfly None/None/None Overarinters in eucalyptus groves Moderate potential; no eucalyptus groves within the
project area to roost in, but likely occurs during
migration periods or generally during the year.
Euphyes vestris
harbisoni
Harbison's dun
skipper
None/None/Covered,
NE
Restricted to wetland, riparian, oak
woodlands, and chaparral habitats
supporting host plant Carexspissa
Not expected; host plant is not recorded within the
project area.
Euphydryas editha
quino
Quino
checkerspot
butterfly
FE/None/None Sparsely vegetated hilltops, ridgelines,
occasionally rocky outcrops; host plant
Plantago erecta and nectar plants must be
present
Not expected; host plant is not recorded within the
project area, and outside of currently accepted range.
Lycaena hermes Hermes copper None/None/NE Coastal sage scrub, southern mixed
chapan'al supporting at least 5% cover of
host plant Rhamnus crocea
Not expected; host plant is not recorded within the
project area and outside of currently accepted range.
Panoquina errans Wandering (=
saltmarsh) skipper
None/None/Covered Saltmarsh from Los Angeles to Baja,
Mexico
Moderate potential; suitable brackish marsh habitat
within the project area although it is minimal in extent.
No recent records exist for the near the project area.
Streptocephalus
woottoni
Riverside fairy
shrimp
FE/None/Covered' Deep, long-lived vernal pools, vemal pool-
like seasonal ponds, stock ponds; warm
water pools that have low to moderate
dissolved solids
Not expected; no suitable vernal pool habitat in project
area.
DUDEK 44
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April 2012
)
Corrugated Metal Pipe Replacement Program -
Hoover/Lagoon and Highland/Adams
Table 4
Special-status Wildlife Species Observed or Potentially Occurring in the Project Area
Scientific Name Common Name
Status
Federal/State/HMPi Primary Habitat Associations Status On Site or Potential to Occur
Tryonia imitator mimic tryonia
(=California
brackishwater
snail)
None/None/None Stream mouth, often in fine sandy mud,
coarse silty mud, or coarse gravel
Low potential; no suitable habitat in project area
although suitable habitat likely elsewhere in the lagoon.
There are historical records from the lagoon in 1981
(CDFG 2012a). o
This table includes all HMP species and CNDDB species within an 8-quad search of the surrounding quadrangles: Las Pulgas Canyon, Morro I
Marcos, Encinitas, and Rancho Santa Fe.
Bonsall, Oceanside, San Luis Rey, San
Federal Designations:
FC:
FD:
FE:
FT:
State Designations:
SSC: Species of Special Concern
P: California Department of Fish and Game Protected and Fully Protected Species
SE: ' State-listed as Endangered
ST: State-listed as Threatened
Candidate for federal listing as threatened or endangered
Federally delisted; monitored for five years
Federally listed Endangered
Federally listed as Threatened
HMP Status:
Covered: Take of species permitted under HMP
NE: Take of species permitted subject to HMP conditions for Narrow Endemic species
FP: Fully protected
' Species Coverage contingent on funding for management of conserved areas (List 3)
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6.4 Jurisdictional Delineation
The jurisdictional determinations provided in this report are considered preliminary; final
determinations would require completion of significant nexus analysis and confirmation with the
wetlands resource agencies staff. The preliminary determinations are provided to determine the
maximum extent of potential jurisdictional areas and, therefore, define the area of necessary
impact avoidance to avoid any requirement for wetlands permits.
A jurisdictional delineation was completed for the Hoover/Lagoon project area; there are no
wetland features within the Highland/Adams project area. Three agencies (ACOE, RWQCB, and
CCC) have jurisdiction up to 18 inches above mean ordinary high tide elevation, regardless of
whether the lands within that area support any of the three wetland criteria (vegetation, soils, and
hydrology). Based on the results of the jurisdictional delineation, it was determined that one area
above this jurisdictional line also meets the wetland definition of supporting all three wetland
criteria: coastal brackish marsh. The coastal brackish marsh is, therefore, under the jurisdiction
of ACOE, RWQCB, and CCC (Table 5). CDFG, under its Lake and Streambed program, does
not regulate marine environments and wetland mainly supported by tidal conditions. The
shoreline and wetlands within the Hoover/Lagoon area are marine environments supported by
tidal conditions and therefore not regulated by CDFG.
Table 5
Results of Jurisdictional Delineation
Vegetation
Community/Land
Cover Type Jurisdiction Junsdiction Type
Jurisdictional
Acres
Open Water ACOE, RWQCB, CCC ACOE/RWQCB Non-wetland waters/CCC tidelands 1.92
Beach ACOE, RWQCB, CCC ACOE/RWQCB Non-wetland waters/CCC tidelands 0.18*
Coastal Brackish
Marsh
ACOE, RWQCB, CCC ACOE/RWQCB & CCC Wetlands 0.06
Total** — 2.16
*A portion of the area mapped as beach is within 18 inches of mean ordinary high tide and is therefore jurisdictional; a portion is above this
elevation and is not jurisdictional. The total area mapped as beach is 0.47 acre.
**Totals may not sum due to rounding.
7.0 IMPACTS
Impacts associated with the proposed project are both permanent and temporary, direct and
indirect. Direct permanent impacts consist ofthe footprint of pipe outlets and associated drainage
structures within both of the project areas. Indirect permanent impacts could result from the type
of discharge/runoff associated with the project such as polluted runoff or erosive velocities.
However, the projects are repair projects and do not alter existing discharges. Furthermore, the
U U c iv 46
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design of the rehabilitation projects has been evaluated by project engineers to determine
appropriate siting in relation to existing topography and sizing of pipes, headwall, and energy
dissipaters, to avoid erosion, sedimentation, or other forms of hydromodification. Therefore,
indirect permanent impacts would not occur at either project location.
Direct temporary impacts result from construction areas surrounding the pipe outlets and
trenching for an estimated 24 linear feet of pipe immediately upstream of the drainage outfall at
the Hoover/Lagoon project site. Indirect temporary impacts would include noise, dust, and foot
traffic associated with construction activities.
Relining of the existing pipelines will not result in impacts (either temporary or permanent)
because all construction will be completed within the existing pipeline. All staging of materials,
vehicles, and other equipment will occur within developed roadways or disturbed lots devoid of
biological resources, and therefore no impacts would occur due to staging.
Anticipated direct impacts to vegetation communities and land cover types are listed in Table 6.
There will be permanent and temporary impacts to coastal sage scrub and beach; temporary
impacts to coastal sage scrub, beach, and disturbed habitat will result. The areas of impact to
beach are located the jurisdictional elevation limit and therefore, no impacts to jurisdictional
resources would occur. There will be no impacts to open water, coastal brackish marsh, disturbed
coastal sage scrub, non-native grassland, or developed areas.
Table 6
Impacts to Vegetation Communities within the Project Area
Project Area
Vegetation Community/
Land Cover Type
Permanent Impacts
(square feet)
Temporary Impacts
(square feet)
Total
Impacts
(square feet)
Hoover/Lagoon Beach 48 358 406 Hoover/Lagoon
Disturbed Habitat — 352 352
Highland/Adams Coastal Sage Scrub 49 400 449
Totaf 97 1,110 1,207
Totals may not sum due to rounding.
7.1 Permanent Impacts
A total of 97 square feet of permanent impacts will result from the construction of pipe outlets
within the Highland/Adams and Hoover/Lagoon project areas.
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7.1.1 Hoover/Lagoon
Permanent impacts associated with this project are limited to replacement of the drainage outfall
structure within an area mapped as non-jurisdictional beach (Table 6). Permanent impacts will
occur to 48 square feet of beach resulting from construction of 1) catch basin, 2) storm drain
cleanout, 3) concrete drainage ditch, 4) concrete dike, 5) 6-inch curb, 6) headwall, and 7) riprap
energy dissipater.
7.1.2 Highland/Adams
Permanent impacts associated with this project are limited to replacement ofthe drainage outfall
structure within an area mapped as coastal sage scrub (Table 6). Permanent impacts will occur to
49 square feet of coastal sage scrub resulting from construction of 1) two catch basins, 2) two
storm drain cleanouts, 3) a concrete drainage swale, 4) a concrete drainage ditch, 5) a concrete
spillway, and 6) a riprap energy dissipater.
7.2 Temporary Impacts
A total of 1,110 square feet of temporary impacts will result from the utilization of work areas
within the Highland/Adams and Hoover/Lagoon project areas.
7.2.1 Hoover/Lagoon
7.2.1.1 Direct Impacts
Near the drainage outfall, a section of pipe, estimated at 24 linear feet, will need to be replaced.
Replacement will occur through trenching, removal of the existing pipe, replacement with new
pipe, and backfilling the trench. This area of temporary impact will also allow for constmction of
the drainage outfall structure. The temporary construction area will occupy approximately 358
square feet of beach and 352 square feet of disturbed habitat, totaling 709 square feet (Table 6).
If it is determined during construction that more than 24 linear feet of pipe require replacement
through trenching (as opposed to cured-in-place relining, currently planned), additional
temporary impacts would occur to disturbed habitat between the current limits of temporary
impact and the terminus of Hoover Street.
7.2.1.2 Indirect Impacts
Temporary indirect impacts during construction may include noise and ground vibration from the
equipment used to perform the pipeline replacement and related constmction activities. These
indirect impacts may result in disturbance to native wildlife species, such as the coastal
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California gnatcatcher and other observed or potentially occurring special-status species as listed
in Table 4.
The short-term nature of this project is not expected to result in indirect impacts to wildlife
movement, even if work is conducted during the nesting season.
Indirect impacts to adjacent plant communities, including jurisdictional wetlands and habitat
potentially supporting several special-status species (as listed in Tables 3 and 4), may occur from
fugitive dust, pollution discharge from runoff, and litter/trash/debris.
7.2.2 Highland/Adams
7.2.2.1 Direct Impacts
The temporary impact area at the Highland/Adams site is only associated with installation of the
drainage outfall structure. This area is located directly adjacent to Adams Street, occupying 400
square feet of coastal sage scrub, on the edge of a large contiguous area of coastal sage scrub
habitat (Table 6).
7.2.2.2 Indirect Impacts
The indirect impacts in the Highland/Adams project area are similar to those described
previously for Hoover/Lagoon. In summary, if construction activities occur within the nesting
season, impacts to nesting birds, including from noise and ground vibration, will be significant,
absent mitigation. Potential fugitive dust, polluted runoff, and litter/trash/debris during
construction activities may potentially impact coastal sage scrub supporting several special-status
species. Additionally, the short-term nature of this project is not expected to indirectly impact
wildlife movement, even if work is conducted during the nesting season.
7.3 Determination of Significance
7.3.1 Direct Permanent
Permanent impacts to 48 square feet of non-jurisdictional beach and 49 square feet of coastal
sage scrub are not considered significant.
Non-jurisdictional beach is not a special-status vegetation community. No special-status species
that may potentially occur within this area would be significantly impacted by the loss of 48
square feet of beach. Wildlife movement within the area would not be significantly impacted. As
a repair and rehabilitation project for existing infrastmcture, the proposed drainage outfall
structure would not conflict with the Carlsbad HMP or Agua Hedionda LCP.
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Coastal sage scrub is a special-status vegetation community; however, the loss of 49 square feet
would not appreciably reduce the value of coastal sage scrub for special-status species in this
area. As a repair and rehabilitation project for existing infrastmcture, the project complies with
the Carlsbad HMP, which ensures adequate conservation of coastal sage scrub and most
associated special-status species that occur within this community. No special-status species that
may potentially occur within this area would be significantly impacted by the loss of 49 square
feet of coastal sage scmb. Wildlife movement within the area would not be significantly
impacted. The project complies with both the Carlsbad HMP and Agua Hedionda LCP.
7.3.2 Direct Temporary
The direct temporary disturbance of 709 square feet at the Hoover/Lagoon site and 400 square
feet at the Highland/Adams site is considered significant, absent mitigation. If additional
trenching is required at the Hoover/Lagoon site, the additional impacts to disturbed habitat would
be considered significant. These areas are located adjacent to Agua Hedionda Lagoon with
multiple habitats supporting several special-status species that could be adversely affected by
disturbance of these areas.
7.3.3 Indirect Temporary
If construction activities occur within the nesting season, impacts to nesting birds from noise and
ground vibration will be significant, absent mitigation. Potential fugitive dust, polluted runoff,
and litter/trash/debris during construction activities would also be significant, absent mitigation.
8.0 RECOMMENDED AVOIDANCE AND MINIMIZATION MEASURES
8.1 HMP Compliance
The proposed project does not require an HMP permit per Section 21.210.020(A)(4) of the City of
Carlsbad Code of Ordinances. This section defines a development project in the context of the HMP,
as the "use of a property, including grading, clearing and grubbing, construction, alteration of any
magnitude or activities incidental thereto, which requires a discretionary or ministerial permit,
entitlement, or approval issued under Titles 15, 18, 20, or 21 of the municipal code." Because no city
permits are needed for completion of the proposed project, no HMP permit is required.
8.2 Recommended Mitigation Measures
Significant direct and indirect temporary impacts to special-status vegetation communities and
special-status species can be mitigated to below a level of significance with implementation of
the following measures.
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BIO-l If the constmction activities occur during the nesting bird season (February 15
through September 15), the following measures must be taken (per Section 8.1.3,
Species-Specific Mitigation, from the Guidelines for Biological Studies (Technology
Associates 2008)):
• Surveys will also be conducted by a qualified biologist in appropriate habitat for
nesting raptors and migratory birds and within an additional 500-foot buffer
within three days of constmction.
• The USFWS will be notified immediately of any federally listed species that are
located during preconstruction surveys.
• If nests of listed birds, migratory birds, raptors, or other sensitive species are
located, no construction activity will occur within 500 feet from active nests of
raptors and listed species and 300 feet from other sensitive bird species.
• During the breeding season, construction noise will be measured regularly to
maintain a threshold at or below 60 dBA hourly Leq within 500 feet of breeding
habitat occupied by listed species. If noise levels supersede the threshold, the
construction array will be changed or noise attenuation measures will be
implemented.
BIO-2 A biological monitor shall be present during the construction process in order to
review the limits of work and best management practices (BMPs) prior to
commencement of construction and to periodically check the compliance of
environmental regulations.
BIO-3 BMPs will be installed during construction within the temporary disturbance areas to
minimize potential adverse effects of construction, including fugitive dust, polluted
runoff, and liter/trash/debris. Potential BMPs may include installation of silt fencing,
implementation of dust control measures, and restricting vehicle maintenance to
developed roadway areas.
Post-construction BMPs will include reestablishment of preconstruction conditions
through reestablishment of preconstruction grade and soil substrate within the non-
jurisdictional beach (Hoover/Lagoon site) and application of a hydroseed mix
composed of native species within coastal sage scrub (Highland/Adams site). A
qualified biologist will review and approve the hydroseed mix prior to application.
For the Hoover/Lagoon site, the biologist will confirm reestablishment of
preconstruction grades and soil substrate following construction. For the
Highland/Adams site, the biologist will conduct quarterly monitoring visits for up to
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1 year and recommend remedial measures, if necessary, to ensure reestablishment of
coastal sage scmb.
With implementation of these avoidance and minimization measures, the project will not result
in significant impacts to any biological resources.
9.0 REFERENCES
ACOE (U.S. Army Corps of Engineers). 1987. Corps of Engineers Wetland Delineation Manual.
Online ed. Environmental Laboratory, Wetlands Research Program Technical Report Y-
87-1. Vicksburg, Mississippi: U.S. Army Engineer Waterways Experiment
Station. January 1987. Accessed April 9,2012.
http://www.fedcenter.gov/Bookmarks/index.cfm?id=6403&pge_id=1606.
ACOE. 2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual:
Arid West Region (Version 2.0/ Final Version. Environmental Laboratory, ERDC/EL
TR-08-28. Vicksburg, Mississippi: U.S. Army Engineer Research and Development
Center. September 2008. Accessed April 9, 2012.
http://www.usace.army.mi1/Portals/2/docs/civilworks/regulatory/reg_supp/trel08-28.pdf.
ACOE and EPA (U.S. Environmental Protection Agency). 2008. Clean Water Act Jurisdiction
Following the U.S. Supreme Court's Decision in Rapanos v. United States & Carabell v.
United States. Guidance originally issued June 2007. Revised December 2, 2008.
http://water.epa.gov/lawsregs/guidance/wetlands/upload/2008_12_3_wetlands_CWA_Jur
isdiction_Following_Rapanosl20208.pdf.
AOU (American Ornithologist's Union). 2012. "Check-List of North American Birds: List of the
2,078 Bird Species Known from the AOU Check-list Area." AOU | Check-List of North
American Birds. Accessed April 2012. http://www.aou.org/checklist/north/full.php^
Anderson, D. 2011. "Current Carlsbad Tide." Carlsbad, California, USA. Accessed March \27,
2012. http://www.carlsbad.ca.us/tide.htmL
California Public Resources Code, Section 30000-30900. California Coastal Act, 1976.
CDFG (Califomia Department of Fish and Game). 201 la. "Special Animals (898 taxa)."
California Natural Diversity Database. CDFG, Biogeographic Data Branch. January
2011. Accessed April 9, 2012.
http://www. dfg. ca.gov/biogeodata/cnddb/plants_and_animals. asp.
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CDFG. 2011b. Califomia Natural Diversity Database (CNDDB). Califomia Natural Diversity
Database. CDFG, Biogeographic Data Branch. January 2011. Accessed April 9, 2012.
http://www.dfg.ca.gov/biogeodata/cnddb/plants_and_animals.asp.
CDFG. 2012a. List of California Natural Diversity Database (CNDDB) species for eight quads:
Las Pulgas Canyon, Morro Hill, Bonsall, Oceanside, San Luis Rey, San Marcos,
Encinitas, and Rancho Santa Fe. CNDDB Quick Viewer. Accessed April 2012.
http://imaps.dfg.ca.gov/viewers/cnddb_quickviewer/app.asp.
CDFG. 2012b. California Natural Diversity Database (CNDDB). Special Vascular Plants,
Bryophytes, and Lichens List. January 2012. Accessed April 2012.
http://www.dfg.ca.gov^iogeodata/cnddb/plants_and_animals.asp.
CDFG. 2012c. Califomia Natural Diversity Database (CNDDB). State and Federally Listed
Endangered, Threatened, and Rare Plants of California. January 2012. Accessed April
2012. http://www.dfg.ca.gov/biogeodata/cnddb/plants_and_animals.asp.
City of Carlsbad. 1982. Agua Hedionda Land Use Plan and Local Coastal Program (LCP).
Adopted May 1982.
City of Carlsbad. 1999. Habitat Management Plan for Natural Communities in the City of
Carlsbad. Finalized in 2004.
CNPS (Califomia Native Plant Society). 2010. Inventory of Rare and Endangered Plants. Online
ed. Version 7-11). Sacramento, California: CNPS. Accessed November 2010.
http://cnps.site.aplus.net/cgi-bin/inv/inventory.cgi.
CNPS. 2012. Inventory of Rare and Endangered Plants. Online ed. Version 8-lOa. Sacramento,
California: CNPS. Quadrangles used in query: Las Pulgas Canyon, Morro Hill, Bonsall,
Oceanside, San Luis Rey, San Marcos, Encinitas and Rancho Santa Fe. Accessed April
2012. http://www.rareplants.cnps.org.
Emmel, T.C, and J.F. Emmel. 1973. The Butterflies of Southern California. Science Series 26:1-
148. Los Angeles, California: Natural History Museum of Los Angeles County.
Jepson Flora Project. 2010. Jepson Interchange List of Currently Accepted Names of Native and
Naturalized Plants of California. Berkeley, California: University of California.
Accessed October 8, 2010. http://ucjeps.berkeley.edu/interchange/I_status_l+2.html.
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Oberbauer, T., M. Kelly, and J. Buegge. 2008. Draft Vegetation Communities of San Diego
County. Based on "Preliminary Descriptions of the Terrestrial Natural Communities of
Califomia," by Robert F. Holland, PhD, October 1986. March 2008.
NRCS (Natural Resources Conservation Service). 2010. Field Indicators of Hydric Soils in the
United States: A Guide for Identifying and Delineating Hydric Soils, Version 7.0, 2010.
Prepared in cooperation with the National Technical Committee for Hydric Soils. Edited
by L M. Vasilas, G.W. Hurt, and CV. Noble.
Reed, P.B. Jr. 1988. National List of Plant Species that Occur in Wetlands: California
(Region 0). U.S. Fish and Wildlife Service Biol. Rep. 88(26.10).
San Diego Association of Govemments (SANDAG). 2001. Multiple Habitat Conservation Plan.
Stebbins, R.C 2003. A Field Guide to Western Reptiles and Amphibians. Boston, Massachusetts:
Houghton Mifflin Co.
Technology Associates. 2008. Guidelines for Biological Studies. Prepared for City of Carlsbad
Planning Department. Carlsbad, Califomia. May 29.
USDA (U.S. Department of Agriculture). 2010. "California." State Plants Checklist." Accessed
October 8, 2010. http://plants.usda.gov/dl_state.html.
USDA Soil Conservation Service. 1994. Changes in hydric soils of the United States. Federal
Register 59(133): 35680-35681, July 13.
USFWS (U.S. Fish and Wildlife Service). 2012. "Critical Habitat and Occurrence Data."
Geospatial Services. Accessed April 2012. http://www.fws.gov/data.
Wilson, D.E., and D.M. Reeder, eds. 2005. Mammal Species of the World: A Taxonomic and
Geographic Reference. Online version. 3rd ed. Baltimore, Maryland: Johns Hopkins
University Press, http://www.bucknell.edu/msw3/
Di i 8-# 7216
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APPENDIX A
Cumulative List of Plant Species
within the Project Area
Appendix A
Cumulative List of Plant Species within the Project Area
VASCULAR SPECIES
DICOTS
^5'ZE/e^CE4^SUNFLOWER FAMILY
Artemisia californica—coastal sagebrush
Baccharis salicifolia—mule-fat
Heterotheca grandiflora—^telegraphweed
Isocoma menziesii—Menzies' goldenbush
Pseudognaphalium biolettii - two-color rabbit tobacco
BORAGINACEAI^BORAGE FAMILY
Cryptantha sp. - cryptantha
/'OZ.K6'CW;4CR4^BUCKWHEAT FAMILY
Eriogonum fasciculatum—Eastern Mojave buckwheat
C4C7:4CE4^—CACTUS FAMILY
Opuntia littoralis—coastal pricklypear
APIACEAE—CARROT FAMILY
*Conium maculatum—poison hemlock
CLEOMACEAE^Clu^OME FAMILY
Carsonia sparsifolia—fewleaf spiderflower
ONAGRACEAI^¥NEm^G PRIMROSE FAMILY
Camissonia micrantha—miniature suncup
/VFC7:4G7/V^CE4^FOUR O'CLOCK FAMILY
Mirabilis laevis—desert wishbone-bush
6'^iL47VZ4CE4^GERANIUM FAMILY
*Erodium botrys—longbeak stork's bill
*Erodium cicutarium—redstem stork's bill
CHENOPODIACEAE^GOO^mOOT FAMILY
*Salsola tragus—prickly Russian thistle
Atriplex lentiformis—big saltbush
Salicornia virginica—Virginia glasswort
Suaeda californica—Califomia seablite
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...rf''
Appendix A
Cumulative List of Plant Species within the Project Area
PLUMBAGINACEAI^l.EADV^ORT FAMILY
*Limonium perezii—Perez's sea lavender
FABACEAE-^^GVME FAMILY
Acmispon glaber—common deerweed
LAMIACEAE^mmi FAMILY
Salvia mellifera—black sage
BRASSICACEAE^mmTARD FAMILY
*Brassica nigra—black mustard
SOLANACEAE^mGWTSnADE FAMILY
Datura wrightii—sacred thorn-apple
Solanum parishii—Parish's nightshade
Solanum xanti—chaparral nightshade
OXALIDACEAI^OXAIA^ FAMILY
*0xalis pes-caprae—Bermuda buttercup
EUPHOHBIACEAE^STVRGE FAMILY
*Ricinus communis—castorbean
^/V^C4i?Z>Z4C^^^SUMAC OR CASHEW FAMILY
Malosma laurina—laurel sumac
MONOCOTS
POACEAE^GRASS FAMILY
*Avena barbata—slender oat
*Bromus madritensis ssp. rubens—red brome
*Cortaderia selloana—Umguayan pampas grass
Distichlis spicata—saltgrass
AGA VACEAE^AGAYE FAMILY
Yucca whipplei—chaparral yucca
JUNCACEAE^RUSn FAMILY
Juncus acutus spp. leopoldii—southwestem spiny rush
* Signifies introduced (non-native) species
DUDEK A-2 April 2012
APPENDIX B
Cumulative List of Wildlife Species
within the Project Area
Appendix B
Cumulative List of Wildlife Species within the Project Area
WILDLIFE SPECIES
BIRDS
CORVIDAE- JAYS AND CROWS
Corvus brachyrhynchos - American crow
TROCHILIDAE- HUMMINGBIRDS
Calypte anna -Anna's hummingbird
PARULIDAE- WOOD WARBLERS AND ALLIES
Dendroica coronate - yellow-mmped warbler
TROGLODYTIDAE- WRENS
Thryomanes bewickii - Bewick's wren
FRINGILLIDAE- FINCHES
Spinus psaltria - lesser goldfinch
ACCIPITRIDAE- HAWKS
Buteo jamaicensis - red-tailed hawk
RALLIDAE-RAILS & GALLINULES
Fulica americana - American coot
LARIDAE- GULLS AND TERNS
Larus occidentalis - western gull
TYRANNIDAE- FLYCATCHERS
Sayornis nigricans - black phoebe
CHARADRIIDAE- SHOREBIRDS
Charadrius vociferus - killdeer
SCOLOPACIDAE- SHOREBIRDS
Actitis macularius - spotted sandpiper
PELECANIDAE- PELICANS
Pelecanus erythrorhynchos - American white pelican
MAMMALS
SCIURIDAE- SQUIRRELS
Spermophilus beecheyi - Califomia ground squirrel
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Appendix B
Cumulative List of Wildlife Species within the Project Area
LEPORIDAE- HARES AND RABBITS
Sylvilagus bachmani - brush rabbit
Signifies introduced (non-native) species
DUDEK B-2 April 20I2
ARCHAEOLOGICAL SURVEY REPORT
Corrugated Metal Pipe Replacement Program
Hoover/Lagoon and Highland/Adams
City of Carlsbad, California
Prepared by:
David Stone, M.A., RPA
Ken Victorino, M.A., RPA
DUDEK
621 Chapala Street
Santa Barbara, CA 93101
Tel. (805) 963-0651
Prepared for:
City of Carlsbad - Utilities Engineering Division
1635 Faraday Avenue
Carlsbad, California 92008
USGS San Luis Rey, California 7.5 Minute Quadrangle
April 2012
TABLE OF CONTENTS
Section Paae No.
SUMMARY OF FINDINGS ii
1.0 INTRODUCTION 1
2.0 PROJECT LOCATION AND DESCRIPTION 1
3.0 SOURCES CONSULTED 5
3.1 Cultural Resources Records Search 5
3.2 Native American Consultation 7
4.0 BACKGROUND .8
4.1 Environment 8
4.2 Prehistory 9
4.3 Ethnohistory 11
4.4 History 14
5.0 FIELD METHODS 15
6.0 STUDY FINDINGS AND CONCLUSIONS 17
7.0 OTHER RESOURCES 18
8.0 REFERENCES 19
LIST OF FIGURES AND TABLES
Figure 1 Regional Map 2
Figure 2 Vicinity Map 3
Figure 3 Area of Potential Effect (APE) 4
Table 1 Native American Consultation Summary 8
LIST OF APPENDICES
Appendix A Cultural Resources Records Search (Bound Separately)
Appendix B Native American Consultation
SUMMARY OF FINDINGS
The City of Carlsbad (City) proposes to either replace or repair sections of pipe at two
locations: Adams Street/Highland Drive; and Hoover Street/Agua Hedionda Lagoon. Dudek
prepared this Archaeological Survey Report (ASR) at the request of the City to document
archaeological resources that might be affected by the proposed Project.
An archaeological literature and records search was conducted at the California Historical
Resources Information System (CHRIS) at the South Coastal Information Center (SCIC), for the
proposed Project in March, 2012. At least two investigations have been undertaken within the
proposed Area of Potential Effect (APE). Two prehistoric archaeological sites are located
within or adjacent to the APE.
The proposed APE was the subject of an intensive archaeological survey by Dudek Senior
Archaeologist Ken Victorino in March, 2012. The APE has been disturbed by construction
activities associated with the installation of the existing corrugated metal pipe (CMP) storm
drain. Weathered shell fragments were observed in the proposed Hoover/Lagoon location.
However, the shell was observed in an area disturbed by installation of the existing CMP
storm drain and no other prehistoric cultural material such as chipped stone artifacts was
identified.
If unexpected archaeological materials are encountered during construction, work should stop
in that area until a qualified archaeologist can evaluate the nature and significance of the
find. If human remains are unearthed during construction. State Health and Safety Code
Section 7050.5 states that no further disturbance shall occur until the County Coroner has
made the necessary findings as to the origin and disposition of the remains pursuant to Public
Resources Code Section 5097.98.
1.0 INTRODUCTION
The City of Carlsbad (City) proposes to repair and replace approximately 630 linear feet of
corrugated metal pipe (CMP) in two separate locations along the northern edge of Agua
Hedionda Lagoon in the City of Carlsbad, in San Diego County (see Figures 1 and 2). The
Project Area of Potential Effect (APE) (see Figure 3) includes areas where repair and/or
replacement of CMP will occur.
This report documents the background research. Native American consultation, and
archaeological survey conducted for the proposed Project. The report was prepared by Dudek
archaeologists David Stone, M.A., RPA, and Ken Victorino, M.A., RPA. Mr. Stone has over 30
years' experience in central and southern California and Mr. Victorino has 20 years'
experience.
2.0 PROJECT LOCATION AND DESCRIPTION
The proposed Project area is located in Section 8 of Township 12 South, Range 4 West of the
San Luis Rey, California U.S. Geological Service (USGS) 7.5' topographic quadrangle, within
the County of San Diego (see Figure 2). The proposed Project is located in two separate
locations along the northern edge of Agua Hedionda Lagoon in the City of Carlsbad: along
Hoover Street, southwest of Adams Street, adjacent to the lagoon (Hoover/Lagoon Location)
and; at the intersection of Highland Drive and Adams Street (Highland/Adams Location). The
proposed Project is the repair and replacement of approximately 630 linear feet of CMP (see
Figure 3).
Hoover/Lagoon Location
The Hoover/Lagoon location involves repairing approximately 474 linear feet of CMP with a
cured-in-place liner and replacing approximately 24 linear feet of CMP with high-density
polyethylene (HDPE) pipe. The Hoover/Lagoon location also indudes the construction of the
following components: a catch basin, storm drain cleanout, concrete drainage ditch, concrete
dike, curb, headwall, and riprap energy dissipater.
e
- Wth
N
0 400
•
APE
SOURCE: Bing 2012 FIGURE 3
Area of Potential Effect (APE)
Corrugated Metal Pipe
Highland/Adams Location
The Highland/Adams location involves replacing approximately 132 linear feet of damaged
and degraded CMP with reinforced concrete pipe (RCP). This location also includes the
construction of the following components: two catch basins; two storm drain cleanouts; a
concrete drainage swale; a concrete drainage ditch; a concrete spillway; and a riprap energy
dissipater. The APE includes areas where CMP will be repaired and replaced and other
components will be constructed.
3.0 SOURCES CONSULTED
This section describes the methods and results of the records search conducted at the
California Historical Resources Information System (CHRIS), and summarizes correspondence
with the Native American Heritage Commission and Native Americans regarding the proposed
project.
3.1 Cultural Resources Records Search
An archaeological site records and literature search of the California Historical Resources
Information System (CHRIS) South Coastal Information Center (SCIC), was conducted on March
26, 2012 by Nick Doose, SCIC Information Officer, to identify all recorded archaeological sites
within 1/2 mile of the proposed project area (see Appendix A). The records search identified
all known archaeological sites and historic resources, within this distance, and any previous
cultural resource surveys within the project site. The SCIC records indicate that 45
investigations have been completed within 1/2 mile of the APE. Of these, two investigations
have addressed the northern and southern portions of the Hoover/Lagoon site (Mooney 1993,
Gallegos 2003), and one has addressed the entirety of the Highland/Adams site (Mooney
1993).
Two prehistoric archaeological sites are recorded within or adjacent to the Project site: CA-
SDI-13701 encompasses the Highland/Adams Project area; and CA-SDI-18613 is located
adjacent to the southeast corner of the Hoover/Lagoon Project area.
CA-SDI-13701 (W-130)
CA-SDI-13701 was originally recorded by M. Rogers as a large shell midden (soils resulting
from the decomposition of organic food remains including shellfish, and animal meats
resulting in a darker, silty loam context) with ground and chipped stone artifacts. In 1994,
Gallegos & Associates conducted a survey for the Moffatt Parcel and identified a "relatively
undisturbed portion of the midden" with chipped and ground stone artifacts in a level area
near the top of a ridge in the western portion of the archaeological site, just south of Adams
Street and approximately 100 meters (328 feet) away from the proposed Project APE. Fewer
numbers of chipped and ground stone artifacts were also identified in an area just north of
the Highland Drive and Adams Street intersection and just north the proposed Project APE.
Despite this, the overall integrity of the site was recorded as poor.
In 2004, Gallegos & Associates conducted a survey of the Adams Street Property and
indicated that the archaeological deposit within the Adams Street Property project area had
been destroyed by activities associated with the construction of a concrete ditch and brick
wall, the installation of a metal fence, grading, and landscaping. Based on the disturbances
within the Adams Street Property project area and the resulting destruction of the
archaeological deposit within the Adams Street Property project area, no further
archaeological investigation including testing and/or construction monitoring for the Adams
Street Property project was recommended.
Based on the CA-SDI-13701 Archaeological Site Record, in 2006, Brian F. Smith & Associates
excavated a portion of CA-SDI-13701 located south of Adams Street, south and east of the
current Highland/Adams location and approximately 35 meters (115 feet) away from the
proposed Project APE, for the Adams Street Subdivision project. Excavations consisted of
shovel test pits and one 1x1 meter unit. The excavations indicated that the archaeological
deposit in this particular area was a result of erosion from archaeological deposits located up-
slope. It was determined that the archaeological deposit in this particular area lacked the
ability to answer research questions and was not eligible for listing on the California Register
of Historical Resources (CRHR). It was not considered a significant archaeological resource
according to CEQA and City of Carlsbad guidelines. It therefore would not be considered
eligible for listing on the National Register of Historic Places (NRHP). Adams Street
Subdivision project impacts on archaeological resources were characterized as less than
significant. No data recovery excavation program was proposed but archaeological
monitoring of construction was recommended in the event that unknown, potentially
significant resources might be encountered during grading.
In 2009, ASM Affiliates conducted a Phase II testing program at CA-SDI-13701 as part of the
North Agua Hedionda Interceptor (NAHI) Western Segment Realignment Project (ASM 2009).
The testing determined the portion of CA-SDI-13701 within the NAHI project area is not
eligible for listing on the CRHR or the NRHP. Archaeological and Native American monitoring
during NAHI project construction identified only sparsely scattered shell.
CA-SDI-18613 (NAHI-S-1)
CA-SDI-18613 was recorded by Gallegos & Associates in 2007 as an artifact scatter consisting
of two "battered implements" and two ground stone fragments during a survey for the NAHI
Sewer Project, adjacent to the southeast corner of the Hoover/Lagoon location. In 2009, ASM
Affiliates conducted a Phase II testing program at CA-SDI-18613 as part of the NAHI Western
Segment Realignment Project (ASM 2009). The testing determined that CA-SDI-18613
represents a secondary (disturbed and imported) deposit of prehistoric archaeological
materials, and is not eligible for listing on the CRHR or the NRHP.
3.2 Native American Consultation
A search of the Native American Heritage Commission's (NAHC) Sacred Land File was requested
on March 9, 2012, and was conducted on March 26, 2012 (Dave Singleton, NAHC Program
Analyst) to determine the presence of any Native American cultural resources within the
proposed project area (see Appendix B). The NAHC indicated that no known Native American
heritage resources are identified within the proposed project area. The NAHC identified nine
Native American contacts, both tribes and individuals, who would potentially have specific
knowledge as to whether or not other cultural resources are identified in the APE that could be
at-risk. Letters to these contacts were sent out on April 10, 2012. Table 3 summarizes this
consultation.
o
Table 1. Native American Consultation Summary
Contact Name Contact Dates/Method Response
Pala Band of Mission Indians,
Tribal Historic Preservation
Office, Shasta Gaughen
April 10, 2012, Letter to
Shasta Gaughen
No Response
Pauma Valley Band of Luisetio
Indians, Bennae Calac, Tribal
Council Member
April 10, 2012, Letter to
Bennae Calac
No Response
Rincon Band of Mission
Indians, Bo Mazzetti,
Chairperson
April 10, 2012, Letter to Bo
Mazzetti
No Response
Pauma & Yuima Reservation,
Randall Majel, Chairperson
April 10, 2012, Letter to
Randall Majel
No Response
Pechanga Band of Mission
Indian, Paul Macarro, Cultural
Resources Manager
April 10, 2012, Letter to Paul
Macarro
No Response
San Luis Rey Band of Mission
Indians, Tribal Council
April 10, 2012, Letter to Tribal
Council
No Response
Rincon Band of Mission
Indian, Cultural &
Environmental, Tiffany Wolfe
April 10, 2012, Letter to
Tiffany Wolfe
No Response
San Luis Rey Band of Mission
Indians, Cultural Department
April 10, 2012, Letter to
Cultural Department
No Response
La Jolla Band of Mission
Indians, James Trujillo, Vice
Chair
April 10, 2012, Letter to
James Trujillo
No Response
4.0 BACKGROUND
4.1 Environment
The project site is located along the northern edge of Agua Hedionda Lagoon, in the City of
Carlsbad. The existing environment is characterized by residential development and
undeveloped open space.
Soils within the APE consist of Carlsbad gravelly loamy sand and marina loamy coarse sand.
The topography slopes southwest toward the lagoon, and elevation ranges from 0 feet mean
sea level (msl) to 80 feet above msl.
4.2 Prehistory
Various cultural sequences have been defined for coastal California and San Diego County
(e.g.. Bull 1987; Ezell 1987; Moriarty 1966; Warren 1987). For consistency, this report will
rely on a terminological sequence (i.e., Paleoindian, Archaic, Late Prehistoric).
Paieoindian Period (12,000-8,000 B.P.)
The Paleoindian period, also known as the San Dieguito complex, dates from circa 12,000 to
8,000 Before Present ("B.P.") and is typified by artifact assemblages consisting of typical
hunter-gatherer flaked lithic tools, such as scrapers, scraper planes, choppers, and large
projectile points (Davis et al. 1969; Moratto 1984; Warren 1987). A cooler and wetter climate
during this period resulted in more widespread pinion-juniper and riparian plant communities.
Sites occupied during this time suggest that the hunting of deer and smaller mammals was
central to the San Dieguito economy. Typical Paleoindian assemblages do not contain
millingstone technology.
Although no consensus has been reached among archaeologists, some information suggests
that the San Dieguito complex may have evolved into the La Jolla complex or Archaic Period
between about 9,000 and 8,000 years B.P. (Erlandson 1994). This transitional period is
supported by the presence of artifacts such as eccentric crescents and spire-ground Olivella
beads in both complexes. A "type" site that demonstrates this relationship is CA-SDI-210, a
multi-component midden site located south of Carlsbad on the north shore of Agua Hedionda
Lagoon (Moriarty 1967). In the upper levels, the nearly 2-meter-deep midden contained
milling tools attributed to the La Jolla Complex. No milling stones were found below 130
centimeters, but scrapers, choppers, and hammerstones typical of the La Jolla Complex were
found throughout all levels of the midden, and the soil profile exposed a homogeneous
deposit lacking obvious stratification. A sample of shell from the base of the midden returned
a radiocarbon date of 9020 ± 500 radiocarbon years before present.
There has been significant debate over the past two decades regarding the relationship
between sites relating to the San Dieguito complex and the later La Jolla complex. These
arguments have produced an alternative interpretation that considers both cultural
phenomena as "functional variants of a single adaptive system" (Reddy and Byrd 1997). This
hypothesis has gained support from the development of the paleocoastal model that suggests
the initial occupants of coastal California were generalized hunter-gatherers rather than big-
game specialists.
Archaic Period (8,000-2,000 B.P.)
The Archaic period (La Jolla/Pauma complex) lasted until approximately 2,000 B.P. Archaic
period adaptations are expressed in the La Jolla complex as a shift from generalized hunting
and gathering to a subsistence strategy focused on the exploitation of marine resources
(primarily shellfish and fish). Most La Jollan sites are located along the coast and major
drainage systems and are characterized by the appearance of millingstone technology (basin
metates and manos), shell middens, cobble tools, discoidals, a small number of Pinto and Elko
series points, and flexed burials. In the interior of San Diego County, Archaic adaptations are
represented by the Pauma complex (True 1958). Although the Pauma complex shares
similarities with the coastal adaptation, Pauma sites generally reflect reduced exploitation of
marine resources, contain a greater frequency of milling equipment, and have fewer
hammer/chopper and planning/scrapping tools (True and Beemer 1982), In addition,
archaeological manifestations of the Pauma complex are generally located in upland contexts,
overlooking drainages.
Late Prehistoric Period (2,000-200 B.P.)
The Late Prehistoric period is characterized by the introduction of ceramics and changes in
burial traditions and lithic technology. Flexed inhumations are replaced with cremation
burials, and small pressure-flaked projectile points make an appearance. There is a shift from
littoral resource exploitation to an emphasis on inland plant (especially acorns) food
collection, processing, and storage. These changes are believed to be associated with a
migration of Yuman-speaking people from the eastern Colorado River region around 2,000
B.P. (Rogers 1945) and Shoshonean speakers after 1,500 B.P. (Moratto 1984; True 1966).
10
During this period, inland semi-sedentary villages were established along major watercourses,
and mountain areas were seasonally occupied to exploit acorns and pmon nuts.
In the northern part of San Diego County, the Late Prehistoric period is represented by the
San Luis Rey complex (Meighan 1954; True et al. 1974), which is considered to represent the
Shoshonean predecessors of the Luiseiio. The San Luis Rey complex is divided into two
phases: San Luis Rey I, a pre-ceramic phase lasting from circa A.D. 1400-1750 (Meighan
1954; True et al. 1974); and San Luis Rey II, a ceramic phase from A.D. 1750-1850 (Meighan
1954). The San Luis Rey II complex differs primarily in the appearance of cremation urns,
ceramics, and red and black pictographs. Ceramics may have entered into the San Diego
region as early as circa A.D. 1200-1600 (True et al. 1974), but did not become common until
the ceramic phase of the San Luis Rey complex.
True and Waugh (1982) describe a diachronic model of settlement and subsistence change
during the Late Prehistoric period of Luiseno occupation. They suggest that settlement
patterns during approximately A.D. 1-1500 were characterized by small, briefly occupied
campsites located in a variety of locations, a classic indication of what is now called a foraging
strategy. After A.D. 1500, they suggest that settlement patterns became more territorial,
focused on specific drainages, and reflected a collector-oriented strategy. Sites included
permanent villages in the western foothills and permanent summer camps in the mountains.
4.3 Ethnohistory
A wide range of historical, ethnohistorical, and ethnographic sources provide an outline of the
ethnohistory of the region. Historical documents include the sacramental and census registers
(padrones) of the Franciscan missions, as well as various documents from early explorers
(e.g., Bolton's 1927 translation of the Crespi diary of the Portola Expedition). A large body of
ethnographic and ethnohistorical sources provides information on a wide range of topics
including settlement, subsistence, social organization, population size, and cosmology of the
people who lived in the region when the Spanish arrived (Bean and Shipek 1978; Earle and
O'Neil 1994; Harrington 1933, 1986; Johnson 1998; Kroeber 1925; McCawley 1995, 1996;
Rivers 1991; Sparkman 1908).
11
Cultural AfTiliation
The Shoshonean inhabitants of northern San Diego County were called Luiseiios by
Franciscan friars, who named the San Luis Rey River and in 1798 established the San Luis Rey
Mission in the heart of Luiseiio territory. Their territory encompassed an area roughly from
Agua Hedionda Creek north to Aliso Creek on the coast, and inland to Santiago Peak and
Palomar Mountain (Bean and Shipek 1978). The Luiseiio shared boundaries with the
Gabrielino and Serraiio to the west and northwest, the Cahuilla from the deserts to the east,
the Cupeno to the southeast, and the Ipai or Kumeyaay to the south. Luiseno, Gabrielino,
Serrano, Cahuilla, and Cupeno belong to the Takic subfamily of Uto-Aztecan, but the Ipai are
classified in the Yuman language family (Bean and Shipek 1978).
Social and Settlement Organization
The Luisenos were divided into several autonomous lineages or kin groups based on a
patrilineal and patrilocal social system. The lineage represented the basic political unit among
most southern Californian Native Americans. The exact nature of settlement dynamics of the
Luiseiio is still debated. According to Bean and Shipek (1978), the Luiseno exploited a wide
range of resources in a bimodal seasonal system. Most inland groups had fishing and
gathering sites on the coast that they visited annually when the tides were low or when inland
foods were scarce from January to March. The mountain camp was occupied by most of the
village population during October and November, when acorns were harvested and game
animals hunted. Each lineage had exclusive hunting and gathering rights in their procurement
ranges, and trespassers were seriously punished (Bean and Shipek 1978).
It has been suggested that coastal Luiseiio groups stayed along the seashore the entire year
instead of utilizing the bimodal system discussed above (Koerper 1981). Alternatively, Shipek
(1977) suggests that the Luiseno occupied permanent villages in a variety of ecological zones
and made seasonal forays to procure specific resources from particular localities.
12
Subsistence Patterns
Acorns were an important food source to the Luiseiio, as they were with most inland
communities of Takic speakers in southern California. Acorns were collected in the fall and
then stored in either conical shaped granaries or in ceramic storage pots (McCawley 1995). It
is unclear how important acorns were to the coastal inhabitants, but many researchers believe
that these nuts may have composed up to 25 percent of the diet (Bean and Shipek 1978;
Earle and O'Neil 1994; White 1963). Coastal groups may have visited more interior areas
during harvest time or may have exchanged goods with more inland residents in order to
acquire enough acorns for the community.
Besides acorns, people utilized various seeds, greens, bulbs, roots, and fruits, This includes a
wide variety of cacti and even edible reeds. The greens may have been an important
springtime food, when other supplies were relatively scarce. Edible reeds could have provided
a supplementary resource during times of food scarcity, such as late winter. Bean and Shipek
(1978) believe seeds provided a large bulk of the nutritional needs of the people. They
mention the use of grass seeds, manzanita, sunflower, sage, chia, lemonade berry, wild rose,
holly-leaf cherry, prickly pear, lamb's-quarters, and pine nuts.
The Luiseno hunted large and small terrestrial game, including black-tailed deer, pronghorn,
jackrabbits, various birds, grasshoppers, and rodents. Deer were hunted with bow and arrow,
captured in snares, or driven off cliffs (McCawley 1995), Smaller mammals, such as rabbits
and rodents, were hunted with bow and arrows, throwing sticks, snares, traps, and draw
nets, McCawley (1995), however, lists a series of animals that were not eaten by the Luiseno
during pre-mission times. This list includes tree squirrels, wild pigeons or doves, dogs,
coyotes, foxes, wolves, badgers, skunks, raccoons, wildcats, gophers, moles, eagles,
buzzards, crows, hawks, owls, mockingbirds, lizards, snakes, rattlesnakes, turtles, tortoises,
frogs, and toads.
Fish and other marine animals played an important dietary role to the people living along the
coast. Fishing equipment included bone and shell fishhooks, yucca fishing line, and
detachable-point harpoons (McCawley 1995). In addition, coastal groups used dugout or rush
13
bundled canoes (Earle and O'Neil 1994; Harrington 1986; McCawley 1995), Such crafts would
have given the coastal inhabitants access to offshore fishing grounds. In addition to fish, the
coastal groups subsisted off of a wide variety of locally available shellfish, marine mammals,
and crustaceans (Bean and Shipek 1978),
4.4 History
First contact between Europeans and the Luiseno came in 1769 with the arrival of Caspar de
Portola's expedition. The expedition was traveling between San Diego and Monterey in order
to investigate possible mission sites (Rivers 1991), Mission San Juan Capistrano was
established in 1776, the seventh of California's 21 missions. Mission San Luis Rey was
founded 22 years later as the eighteenth mission (Rivers 1991), By 1830, the holdings of
Mission San Luis Rey included San Onofre, Santa Margarita, San Marcos, Pala, Temecula, San
Jacinto, Agua Caliente, and Las Flores (Brigandi 1982, revised 1995),
Fifty Luiseiio villages, each with a population of about 200 people (a total population of
10,000), are estimated to have been populated at the time of Spanish contact (White 1963),
The mission records registered 3,683 Luiseiio in 1828 (Bean and Shipek 1978), indicating a
drastic decrease. Earle and O'Neil (1994) have recently recalculated population estimates
based on mission sacramental register information, and they suggest this decline was not
quite as great. Whatever the case, the Luiseno clearly suffered a catastrophic decline in
population from introduced European diseases as well as living conditions under the mission
system. The Native American populations under the jurisdiction of the San Luis Rey Mission,
however, fared better than most California mission communities (Hornbeck 1983; Jackson
1994; Johnson 1998).
The indigenous communities brought into the mission system were taught the Roman Catholic
faith, Spanish language, farming skills, animal husbandry, adobe brickmaking, carpentry, and
other European crafts (Bean and Shipek 1978). The policy at Mission San Luis Rey was to
maintain the Luiseno settlement pattern, and priests visited the villages to hold masses,
perform marriages, and supen/ise agricultural activities. Although, for the most part,
traditional economic methods continued as the basic subsistence mode and leadership
14
continued as it had always been, ethnohistoric data and new information indicate that a major
cattle ranch operation was in place earlier than 1810 (Cagle et al. 1996). The policy at Mission
San Luis Rey of less-direct or minimal interference was probably one of the reasons that the
local communities in the area of California saw less-devastating population decreases than in
other mission communities. The Luisefios social and political organization was drastically and
forever changed by the policies of missionization (McCawley 1995, 1996),
In 1834, the missions were secularized, resulting in political imbalance and Native American
revolts and uprisings against the Mexican rancheros, who used the local populations as
indentured labor. In theory, this secularization was supposed to act as a transition from
mission-controlled to Native American-controlled pueblos (McCawley 1996), This would allow
the missions to continue developing new territories in more inland areas while leaving the
"Christianized" Native Americans in charge of their original holdings. In reality, the
secularization movement allowed self-aggrandizing individuals, mostly Mexican citizens, to
control the wealth of vast amounts of lands. By 1845, Pio Pico, temporary governor of
California and last governor of Mexican California, and his family acquired over 133,000 acres
of land, including San Onofre, Santa Margarita, and Las Flores (Rivers 1991).
At this time, many Luiseno left the missions and sought refuge among inland groups, while a
few acquired land grants and entered into the mainstream Mexican culture. Several local
pueblos were established for some of the San Luis Rey rancherias, among them Santa
Margarita and Las Flores by the Mexican government. These pueblos were intended to be
governmental units within the Mexican political system. Most, like Las Flores and Santa
Margarita, disappeared under Mexican rancho rule,
5.0 FIELD METHODS
The APE incorporates all of the proposed construction areas associated with the proposed
Project, The Phase 1 pedestrian survey of proposed Project areas was conducted March 13,
2012 by Dudek Senior Archaeologist Ken Victorino, M,A,, RPA, using3-meter (9,8-foot)
meandering transect inten/als.
15
Hoover/Lagoon Location
At the northeast corner of the Hoover Street and Adams Street intersection, where the catch
basin, concrete drainage ditch, concrete dike, and curb will be constructed, ground surface
visibility was excellent (90 to 100 percent). This area has been disturbed by activities
associated with installation of a fire hydrant and fire water line, installation of a wood
power/utility pole, and construction of a storm drain and curb.
Along Hoover Street where the CMP will be repaired with a cured-in-place liner, ground
surface visibility was fair to good (10 to 90 percent). This area has been disturbed by
activities associated with the installation of the existing CMP. Approximately 20 to 30 pieces
of weathered shell, mainly Venus clam (Chione spp,) roughly y4- to y2-inch in size, were
obsen/ed on the ground surface. No other prehistoric archaeological materials such as bone,
chipped stone artifacts, or ground stone artifacts were identified. Examination of rodent holes
and backdirt piles did not reveal any shell or darkened/discolored soil. Modern trash,
including white ceramic tile, and imported gravel was observed on the ground surface in
association with the shell.
Ground surface visibility was fair (10 to 50 percent) in the undeveloped open space between
Hoover Street and Agua Hedionda Lagoon, where CMP will be replaced with HDPE pipe and a
storm drain cleanout, headwall, and riprap energy dissipater will be constructed,. This area
has been disturbed by activities associated with the installation of the existing CMP. Silt
fences and straw wattles have been installed to control erosion in this area, suggesting that
this area has been previously graded. Approximately 10 pieces of weathered shell were
observed on the ground surface. Again, no other prehistoric archaeological materials were
identified. An approximately 3-foot high bank along the shore of the lagoon was examined.
No prehistoric archaeological materials or darkened/discolored soils were identified,
Highland/Adams Location
The Highland/Adams location has been disturbed by activities associated with the installation
of the existing CMP. The area north of Highland Drive where the concrete drainage ditch.
16
catch basin, and concrete drainage swale will be constructed has been disturbed by activities
associated with construction of a 3- to 4-foot high retaining wall. Areas where RCP will be
installed and a storm drain cleanout constructed within Highland Drive and Adams Street has
been disturbed by the installation of underground utilities, A storm drain cleanout and riprap
energy dissipater will be constructed at the base of a gravel covered slope south of Adams
Street, Based on the surrounding topography, this area appears to have been filled for the
construction of Adams Street, This area has also been disturbed by erosion and scouring
from the existing CMP outlet. No prehistoric archaeological materials were identified.
6.0 STUDY FINDINGS AND CONCLUSIONS
The intensive survey of the Project APE identified weathered, small shell fragments within the
Hoover/Lagoon location. However, no other prehistoric archaeological materials such as
chipped stone artifacts or ground stone artifacts were observed. Disturbances associated
with installation of the existing CMP storm drain have most likely destroyed any intact
archaeological materials. These observations are consistent with previous archaeological
investigation conclusions. The shellfish fragments may be associated with the previously
recorded archaeological site CA-SDI-18613. They are located within soils that have been
disturbed as a result of installation of the existing CMP. The shellfish fragments therefore do
not display integrity of location. The loss of this integrity compromises the ability of the
sparse shell fragments to address criteria for eligibility for listing on the CRHR and NRHP,
Specifically, the disturbed shellfish fragments:
(A) Are not associated with events that have made a significant contribution to the
broad patterns of California's history and cultural heritage;
(B) Are not associated with the lives of persons important in our past;
(C) Do not embody the distinctive characteristics of a type, period, region, or method
of construction, or represents the work of an important creative individual, or
possesses high artistic values; or
(D) Have not yielded, or may be likely to yield, information important in prehistory or
history.
17
Given the reliable conditions characterizing the present intensive archaeological survey, no
further investigations are needed to determine the potential existence of CRHR- or NRHP-
eligible properties in the Project APE,
7.0 OTHER RESOURCES
Unidentified Cultural Materials
If previously unidentified archaeological materials are unearthed during construction, work
should be halted in that area until a qualified archaeologist can assess the significance of the
find.
18
8.0 REFERENCES
ASM Affiliates, Inc,
2009, Results of Archaeological Testing at SDI-13701 and NAHI-S-1 for the North Agua
Hedionda Interceptor Western Segment Realignment Project, Carlsbad, San Diego
County, California, Unfiled draft.
Bean, Lowell, and Florence Shipek
1978. Luiserio. In California, edited by R. Heizer, pp. 550-563, Handbook of North
American Indians, vol. 8, W. Sturtevant, general editor. Smithsonian Institution.
Washington.
Brian F. Mooney & Associates (Mooney)
1993. Archaeological Survey Report for a Portion of Adams Street Widening Project in
the City of Carlsbad, California. Ms. on file, SCIC, San Diego State University,
Brigandi, Phil
1982, A Brief History of Las Flores Revised 1995.
Bull, Charles S,
1987, A New Proposal: Some Suggestions for San Diego Prehistory, In San Dieguito-La
Jolla: Chronology and Controversy, edited by Dennis Gallegos, pp, 35-42, San Diego
County Archaeological Society Research Paper No, 1,
Cagle, Chantal, C, Woodman, L, Haslouer, and B, Bowser
1996, Management Summary: CA-SDI-812/H, Marine Corps Base, Camp Pendleton, San
Diego County, California, Preliminary Results of Test Excavations and a Determination of
NRHP Eligibility. Science Applications International Corporation, Submitted to the U,S.
Army Corps of Engineers, Fort Worth District.
Davis, E.L,, C.W, Brott, and D,L, Weide,
1969, The Western Lithic Co-Tradition. San Diego Museum Papers 6.
Earle, David and Stephen O'Neil
1994, An Ethnohistoric Analysis of Population, Settlement, and Social Organization in
Coastal Orange County at the End ofthe Late Prehistoric Period. Keith Companies,
Submitted to Coastal Community Builders, Newport Beach.
Erlandson, Jon M.
1994. Early Hunter-Gatherers ofthe California Coast New York: Plenum Press,
19
Ezell, Paul H.
1987, The Harris Site —An Atypical San Dieguito Site or Am I Beating a Dead Horse? In
San Dieguito — La Jolla: Chronology and Controversy, edited by D. Gallegos. San Diego
County Archaeological Society Research Paper 1:15-22.
Gallegos & Associates (Gallegos)
2003. Cultural Resource Survey and Test Program for the Carlsbad Sewer Une Project,
Carlsbad, California. Ms. on file, SCIC, San Diego State University.
Graham, William.
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23
APPENDIX A
Cultural Resources Records Search
(CONFIDENTIAL, BOUND SEPARATELY)
APPENDIX B
Native American Consultation
03/26/2012 15:09 FAX 918 657 SW NAHC Biool
.1 '^^l^'^-^™«ni^i.Q^m^Tf
NATIVE AMERICAN HERITAGE COMMISSION
ms CWim MAUL, ROOM 364
MCtUMENTO, CA 95814
Fax(916)657-sa90
WBP Site w!iww.nalw.ta.q<>v
ClBjraihc9|^el)«H.nBt
March 26, 2012
Mr. Ken Victorino
DUDEK
621 Chapala Street
Santa Barbara, CA 93101
Sent by FAX to:
No. of Pages:
805-963-2074
5
Re: Sacred Lands File Search and Native American Contacts list for the "Comiaate4d
Metal Pipe Replacement Proiect f#72l6k" located in northern San Diego Countv,
Caltfomiar
Dear ^fr. Victorino
The Native Amertean Heritage Commission (NAHC) conducted a Sacred Lands
File search ofthe 'area of potential effect,' (APE) based on the USGS coordinates provided
and Native American cultural resources were not identifled in the project area of
potential effect (e.g, APE); you specified. Also, please note; the NAHC Sacred Lands
Inventory is not exhaustive and does not preclude the discovery of cultural resources
during any project groundlKeaking activity.
California Public Resources Code §§5097.94 (a) and 5097,96 authorize the NAHC
to establish a Sacred Land Inventory to record Native American sacred sites and burial
sites. These records are exemi:^ from the provisions of the Califomia Public Records Act
pursuant to. Califomia Govemment Code§6254 (r). The purpose of this code is to protect
suqh sites from vandalism, theft and destruction.
in the 1985 Appellate Court decision (170 Cal App 3rd 604), the court held that the
NAHC has jurisdiction and special expertise, as a state agency, over affected Native American
resources, impacted by proposed projects including archaeological, places of religious
significance to Native Americans and burial sites
The Califomia Environmental Quafrty Act (CEQA - CA Public Resources Code §§
21000-21177, amendments effectwe 3/18/2010) requires that any project that causes a
substantial adverse change In the s^nificance of an historical resource, that includes
archaeological resources, is a 'significant effect* requiring the preparation of an Environmental
Impact Report (EIR) per the CEQA Gukiennes defines a signiflcant impact on the environment
as 'a substantial, or potentially substantial, adverse change In any of physical conditions within
an area affected by the proposed project, including ...objects of historic or aesthetic
significance.' fn order to comply with ^ts provision, the lead agency is required to assess
whether the project will have an adverse impact on these resources wrthin the 'area of potential
effect (APE), and if so, to mitigate that ^ect. CA Govemment Code §65040.12(e) defines
"environmental justice" provisions and is applicable to the environmental review processes.
03/26/2012 15:09 FAX 916 857 5iO NAHC O Bl002
Eariy consultation with Native American tribes in your area is the best way to avoid
unanticipated discoveries once a project Is underway. Local Native Americans may have
knowledge of the religious and cultural significance of the historic properties of the proposed
project for the area (e.g. APE). Consuttation with Native American communities is also a matter
of environm^al justice as defined by Califomia Government Code §65040.12(e). We urge
consultation with those tribes and interested Nathre Americans on the list the NAHC has
attached in order to see if your proposed project might impact Native American cultural
resources. Lead agencies should consider avoidan;^. as defined in §15370 ofthe CEQA
Guidelines when significant cultural resources as defined by the CEQA Guidelines §15064.5
(b)(c)(0 may be affected by a proposed project. If so, Sectfon 15382 ofthe CEQA Guidelines
defines a significant impact on the environment as "substantial," and Section 2183.2 which
requires documentation, data recovery of cultural resources.
The 1992 Secretary of Oie Interiors Standards for tfie Treatment of Hlstonc Pnjperties
were revised so that they could be appUed to all historic resource types included in the National
Register of Historic Places and induding cultural landscapes. Also, federal Executive Orders
Nos. 11593 (preservation of cultural environment), 13175 (coordination & consultation) and
13007 (Sacred Sites) are helpftil, supportive guides for Section 106 consultation. The
aforementioned Secretary ofthe Interior's Standards include recommendations for all 'lead
agencies* to consider the historic context of proposed prefects and to "research' the culfairal
landscape that might include the 'area of potential effect.'
Partnering with local tribes and interested Native American consulting parties, on the
NAHC list, should be conducted in compliance with the requirements of federal NEPA (42 U.S.C
4321-43351) and Section 106 4(1), Section 110 (f)(k) of federal NHPA (16 U.S.C 470 ef seq),
36 CFR Part 800.3 (f) (2) & .5. the President's Council on Environmental Quality (CSQ, 42
U.S.C 4371 ef seg. and NAGPRA (25 U.S.C. 3001-3013) as appitjpriate. The 1992 Secretary of
the interiors Standards for tha Treatment of Historic Properties were revised so that they could
be applied to all historic r^ource types induded in the National Register of Historic Places and
including cultural landscapes. Also, federal Executive Orders Nos. 11593 (presentation of
cultural environment), 13175 (coordination & consultation) and 13007 (Sacred Sites) are helpful,
supportiive guides for Section 106 consultation. The IMAHC remains concerned about the
limitations and methods employed for NHPA Section 106 Consultation.
Also, Califomia Public Resources Code Section 5097.98, California Govemment Code
§27491 and Health & Safety Code Section 7050,5 provide fbr provisions for accidentally
discovered archeological resoun::es during construction and mandate the processes to be
followed in the event of an accidental discovery of any human remains in a project location other
than a 'dedicated cemetery', another important reason to have Native American Monitors on
boarti with the project
To be effective, consultation on specific projects must be the result of an ongoing
relationship between Native American tribes and lead agencies^ project proponents and their
contractors, in tfie opinion ofthe NAHC. An excellent way to reinforce the relationship between
a project and local tribes is to employ Native American Monitors in all phases of proposed
projects including the planning phases.
Confidentiality of "historic properties of religious and cultural significance" may also be
protected under Section 304 of he NHPA or at the Secretary of the Interior dlscretton if not
eligible for listing on the National Register of Historic Places. The Secretary may also be
advised by the federal Indian Religious Freedom Act (cf. 42 U,S.C.. 1996) in issuing a decision
2
03/26/2012 15:09 PAX 916 657 5 o NAHC 11003
on wh^er or not to disclose items of religious and/or cultural significance identified in or near
the APE and possibility threatened by proposed pro^ activity.
If ycHi have any mm^m about this response to your request, please do not hesitate to
^Slne at (91 e)i5a^1.
I American Contact List
03/26/2012 15:09 FAX 916 657 sl NAHC @]004
Native Andean Contacts
San Diego County
March 26, 2012
Pala Band of Mission Indians
Tribal Historic Preservation Office^hasta Gaugher
35008 PalaTemecula Road, PMB Luiseno
50" » Cupeno
Pala, CA 92059
(760)891-3515
sgaughen@palatribe.com
(760) 742-3189 Fax
Pauma & Yuima Reservation
Randall Majel, Chairperson
P.O. Bk)X 369
Pauma Valley CA 92061
paumareservation@aoLcom
(760)742-1289
(760) 742-3422 Fax
Luiseno
Pauma Valley Band of Luiserio Indians
Bennae Catac. Trib^ Coundi Member
P.O. Box 369 Luiseno
Pauma Valley CA 92061
benna«H:al8C@aol.com
(760)617-2872
(760) 742-3422 - FAX
Rincon Band of Mission Indians
Bo Mazzetti, Chairperson
P.O. Box 68 Luiseno
Valley Center, CA 92082
bomazzetti @ aol.com
(760)749-1051
(760) 749-8901 Fax
Pechanga Band of Mission Indians
Paul Macarro, Cultural Resources Manager
P.O. Box 1477 Luiseno
Temecula » CA 92593
(951) 770-8100
pmacarro@pechanga-nsn.
gov
(951)506-9491 Fax
Rincon Band of Mission Indians
Tiffany Wolfe, Cultural & Environmental
P.O. Box 68 Luiseno
Valley Center, CA 92082
twolfe@rincontrtbe.org
(760) 297-2632
(760) 297-2639 Fax
San Luis Rey Band of Mission Indians
Tribal Council
1889 Sunset Drive Luiseno
Vista . CA 92081
760-724-8505
760-724-2172 - fax
San Luis Rey Band of Mission Indians
Cultural Department
1889 Sunset Drh/e Luiseno
Vista » CA 92081 Cupeno
760-724-8505
760-724-2172-fax
Thils list fs current only as of the date of this docwnmt
OlStriixition of this list do«$ not ralieve any pefson of the statutCMy rasponslbtiHy as defln«d rn S«c«on 70S0.5 of the Health and Safety Cotte,
Section 5097.94 Of tha Putjiie Raseurces Cads and SecHon S097.98 of the Pubflc Rasoufce« Code.
This list is applie«ib>0 for cont^ctins local NaHve Ainarlcans with regard to cultural resourc«s tor tiie proposed
Corrugated Metal Pfpa Raplacement Project (No. 7216); iocatad M nrotii San Diego Coun^, California for which a Sacrad Lands Fila search
and Native American Contacts list w»r» raquasted.
03/a6/2012 15:09 PAX 916 857 NAHC il005
Native American Contacts
San Diego County
March 26. 2012
La Joila Band of Mission Indians
James Trujillo, Vice Chair
22000 Highway 76 Luiseno
Pauma Valley CA 92061
rob.roy@lajolla-nsn.gov
(760) 742-3796
(760) 742-1704 Fax
This list is cunent only as of the d«ite of this document
DlBtribution of this Hat does not reirava any peison of the statutoiy losponsibllity as deflned in Sactlon 7050.5 of the Health and SaMy Code,
SacHon 5097.94 of tha PuiXic Resourons Code and Section S097.98 of the PubHc Fleeourcas Cods.
Thie UM la appiieabte for contading local Native Americans with regard to cuttural resources for the proposed
Cofrtigated Metal Pipe Reptacemant Projmrt (Na 7216); located in nroth San Oiega County, Califonnia for which a Sacred Lands Pile search
and NatWe Amerf can Contacts list were requested.