Agenda, regular meeting, first session — Del Mar City Council, October 7, 2024 (part 3 of 4)

In the case of lines crossing in areas where there are Torrey Pines and where the Project is within the dripline of a Torrey Pine or Monterrey Cyprus Tree, the trenching will be hand dug as required by the City’s Tree Protection Plan.

HOUSING IMPACT:

The X1A Undergrounding Project does not have any impact on the number of residential units in the City.

NEXUS TO CITY COUNCIL GOALS AND PRIORITIES:

Utility Undergrounding is listed as a Tier 1 City Council priority for FY 2024-2025.

ATTACHMENTS:

Attachment A – City Council Resolution 2024-xx for approval of permits DRB24-003, CUP24-003, and CDP24-020
Attachment B – City Council Resolution 2024-xx for the approval of SDG&E easements Attachment C – City Council Resolution 2024-xx granting an Underground Utility Exemption for 1810 San Dieguito Drive
Attachment D – Task Order Amendment
Attachment E – Undergrounding Program Map
Attachment F – X1A District Map
Attachment G – X1A Wall Exhibits
Attachment H – August 13, 2024, Planning Commission Report Attachment I – X1A Pole Exhibit
Attachment J – X1A Civil Plans
Attachment K – 1810 San Dieguito Drive Exemption
Attachment L – Cultural Resource Assessment
Attachment M – Biological Resources Letter Report
Attachment N – Tree Protection Plan
10 October 7, 2024 Item 07

ATTACHMENT A
RESOLUTION NO. 2024-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF DEL

MAR, CALIFORNIA, APPROVING DESIGN REVIEW PERMIT
DRB24-003, COASTAL DEVELOPMENT PERMIT CDP24-020,
AND CONDITIONAL USE PERMIT CUP24-003 TO

UNDERGROUND UTILITY LINES, REMOVE UTILITY POLES,

INSTALL ABOVE GRADE UTILITIES, AND PERFORM RELATED

TRENCHING AND GRADING WITHIN THE UNDERGROUND
UTILITY DISTRICT X1A (CREST CANYON)
WHEREAS, on July 12, 2021, the City Council of the City of Del Mar conducted a Public Hearing forming an Underground Utility District X1A (“UUD X1A”) that includes the removal of utility poles and replaces overhead electrical and telecommunications lines with underground lines in the vicinity of those streets; and WHEREAS, the City of Del Mar (he as the: “Applicant”) filed an application for a Design Review Board (DRB) Permit, Conditional Use Permit (CUP) and Coastal Development Permit (CDP) (the “Project”) for the undergrounding of utility lines, removal of utility poles, installation of above grade utilities, and the construction of trenches and grading activities within the UUD X1A, which is located partially in the Bluff, Slope, and Canyon and Lagoon Overlay Zones; and
WHEREAS, Pursuant to the California Environmental Quality Act (CEQA), the proposed project has been analyzed and determined to be Categorically Exempt pursuant to CEQA Guidelines Section 15302(d) (Class 2) and 15304 (Class 4) and because the project will not otherwise generate any significant environmental impacts, and WHEREAS, the basis for these CEQA Exemptions is because the project takes existing overhead electric utility distribution systems and places those lines underground and then restores the surface level easements to the now current existing conditions, and WHEREAS, the project requires minor alterations to land in six locations with low grading quantities and low retaining wall heights (4’3” maximum) in order to locate required above ground facilities to accommodate the undergrounded lines and related handholes, transformers, and pedestals. The proposed project has been located, designed, and will be constructed based on the recommendations found in the Cultural Resources Assessment titled “Cultural Resource Assessment for the Crest Canyon Undergrounding District X1A Project” which was prepared by HELIX Environmental Planning, Inc. and dated July 8, 2024.

Moreover, the Project will conform to the Biological Resources Letter Report prepared by Busby Biological Resources dated July 11, 2024, which ensures avoidance of any potentially significant impacts to biological resources. It has been further determined that none of the six CEQA exemption exceptions apply to this Project because the Project has been designed to avoid all sensitive environmental resources; and 11 October 7, 2024 Item 07
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WHEREAS, in terms of aesthetic design, on November 1, 2021, the City Council of the City of Del Mar approved a stone veneer or tan split face block for retaining walls which is to be used in all Undergrounding Districts; and WHEREAS, the project is exempt from a Land Conservation Permit pursuant to Del Mar Municipal Code (DMMC) Section 23.33.020(B). because the project will not involve more than twenty-five (25) cubic yards of grading; and WHEREAS, on August 13, 2024, at a duly noticed public hearing, the Planning Commission of the City of Del Mar recommended approval of the CUP and CDP; and WHEREAS, on October 7, 2024, the City Council held a duly noticed public hearing to review the referenced permits at which time all persons desiring to be heard were heard; and
WHEREAS, oral and written evidence was submitted to the record and considered and includes without limitation:
a. Plans submitted by the applicant.
b. Written information submitted with the application.
c. Staff Report, dated October 7, 2024, which is incorporated by this reference as though fully set forth herein; and
d. Additional information submitted during the hearing; and WHEREAS, Section 23.08.070 of the DMMC Design Review Ordinance (“DRO”) provides that an application shall be approved unless the Design Review Board makes findings of fact based upon the information presented during the hearing that support one or more of the Regulatory Conclusions contained in this Chapter; and WHEREAS, DMMC Section 30.75.140 provides that a determination granting a Coastal Development Permit shall be supported by the findings set forth in DMMC Section

30.75.140(A) 1-7; and
WHEREAS, DMMC Section 30.74.020 provides that a determination granting a Conditional Use Permit shall be supported by the findings set forth in DMMC Section

30.74.020(A)1-5.

NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Del Mar approves DRB24-003 based upon the project plans and substantial evidence presented at the public hearing on October 7, 2024, written and oral testimony.

NOW, THEREFORE, BE IT FURTHER RESOLVED, in accordance with Del Mar Municipal Code (DMMC) Section 23.08.070, that the City Council of the City of Del Mar finds that the Project, as conditioned, will not be detrimental to the Community based on the Regulatory Conclusions Sections of DMMC Chapter 23.08 (Design Review). Further, the material of the retaining walls is consistent with the stone veneer or tan split face block retaining walls directed to be used by Council in prior determinations for undergrounding. 12 October 7, 2024 Item 07
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NOW, THEREFORE, BE IT FURTHER RESOLVED, that the City Council of the City of Del Mar approves Coastal Development Permit (CDP24-020) based upon the following findings:

1. That the use for which the Coastal Development Permit is applied is permitted within the zone in which the property is located.

The undergrounding of utilities into the City Right-of-Way and easements, associated trenching, grading, and pole removal is a permitted use within the Bluff, Slope and Canyon Overlay and the Lagoon Overlay Zones.

2. That the proposal meets the criteria of the applicable chapters of this Title.

The proposed project, as conditioned, meets the criteria of the applicable chapters of the Del Mar Zoning Code, specifically Chapters 30.52 (Bluff, Slope and Canyon Overlay Zone) and Chapter 30.53 (Lagoon Overlay Zone).

3. That the granting of such Coastal Development Permit will be in conformity with the certified City of Del Mar Local Coastal Program (LCP).

The Coastal Development Permit, as conditioned, will be in conformity with the certified City of Del Mar Local Coastal Program (LCP) with respect to resource protection standards, avoidance of hazards regulations and public access standards.

The City has carefully designed the undergrounding project to avoid impacts to the San Dieguito Lagoon and steep slope areas and the completed project will provide improved public views of the hillside and lagoon areas.

4. That for all development proposals located seaward of the first public roadway, the proposed development is consistent with and implements the applicable requirements for provision of public access contained in this Title and in the public access and public recreation policies of Chapter 3 of the California Coastal Act.

The portion of the proposed project located seaward of the first public roadway, as conditioned, is consistent with and implements the applicable requirements for provision of public access contained in the Del Mar Zoning Code and in the public access and public recreation policies of Chapter 3 of the California Coastal Act because all existing public access points remain unimpacted and the few retaining walls been located in a manner that will not impede vehicular or pedestrian travel.

5. That for all development proposals involving the construction or placement of a shoreline protection device, that the proposed development is consistent with and implements the applicable requirements of the Beach Overlay Zone and Setback Seawall Zone provisions contained in this Title and is consistent 13 October 7, 2024 Item 07
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with and implements the provisions of the Chapter Three Policies of California Coastal Act.

The proposed project (UUD X1A) is not located in the Beach Overlay Zone and no shoreline protection devices are proposed as part of this Project.

6. That the proposal is consistent with and implements the provisions of public view protection Policies IV-22 through IV-27 of the City of Del Mar LCP Land Use Plan.

The project is consistent with and implements the provisions of public view protection policies of the City of Del Mar Local Coastal Program, including those of the LCP Land Use Plan because public views will be enhanced by the removal of utility poles and their associated lines; and

7. That for all development proposals on sites with identified wetland resources, that the proposed development is consistent with and implements the provisions of the Lagoon Overlay Zone as contained within the City of Del Mar Local Coastal Program Implementing Ordinances and Land Use Plan.

The proposed project is partially located in the Lagoon Overlay Zone and as conditioned, is consistent with the provisions of the Lagoon Overlay Zone, as contained within the Local Coastal Program Implementing Ordinances and Land Use Plan because the majority of the project is buffered from the San Dieguito Lagoon by San Dieguito Road , where, however, utility poles are located adjacent to the wetland, specialize low impact removal procedures will be followed to avoid any negative impacts.

AND BE IT FURTHER RESOLVED, by the City Council of the City of Del Mar, that Conditional Use Permit (CUP24-003) be approved based upon the following findings:

1. That the use for which the Conditional Use Permit is applied for is permitted within the zone in which the property is located.

The undergrounding of utilities into the City Right of Way and associated trenching, grading, and pole removal is permitted in the Bluff, Slope and Canyon Overlay Zone, and the Lagoon Overlay Zone.

2. That the granting of such Conditional Use Permit will not be detrimental to the public health, safety, comfort, convenience and general welfare, will not adversely affect the established character of the surrounding neighborhood, and will not be injurious to the property or improvements on such vicinity and zone in which the property is located.

The undergrounding of utilities lines will be a net benefit to the public and improve the established character of the surrounding neighborhood by removing unsightly 14 October 7, 2024 Item 07
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power lines and poles. Additionally, public safety will be improved because undergrounding the lines will reduce wildland fire risks due to falling power lines that are located in the high severity fire areas.

3. That the proposed use is properly located in relation to the community as a whole and to other land uses and to transportation and service facilities in the vicinity; and further, that the use can be adequately served by such public facilities and street capacities without placing an undue burden on the streets.

The proposed project will be an improvement to public utility lines and will not have an undue burden on the streets.

4. That the site is of sufficient size to accommodate the proposed use and all yards, open spaces, walls and fences, parking, loading, landscaping, and such other features as are required by this chapter or as are needed, in the opinion of the Planning Commission, or the City Council on appeal, are properly provided to be compatible and harmonious with nearby uses.

The proposed Project will not require setbacks, landscaping, or be required to meet parking or other design standards. the Project is located in existing roadway/rightof-way and utility easements which does not require the implementation of design standards. As a result, the Project will be compatible and harmonious with nearby uses.

5. That the granting of such Conditional Use Permit will not be contrary to the adopted Community Plan, including its goals, objectives, or policies, or to the objectives of any ordinance, regulation, or plan in effect to implement said Community Plan.

This Conditional Use Permit request is consistent with the City’s Community Plan, Community Development Goal 3, Objective and Policy F. 4. which calls for a program to underground overhead utilities.

AND BE IT FURTHER RESOLVED, by the City Council of the City of Del Mar, that the steep slope encroachment required for the trenching, grading, and pole removals in relation to the Undergrounding Project X1A are approved based upon the following finding:

1. Pursuant to DMMC 30.52.060(A)5, encroachment into substantial steep slope areas and steep slope setbacks shall be permitted for the construction of, or improvement to, public utility lines and lateral utility hookups upon a finding by the City Council that such improvements have been designed at the minimum size necessary and that they have designed to follow the natural contours of hillsides so as to minimize the amount of soil disturbance commensurate with preserving the natural topography of the area. 15 October 7, 2024 Item 07
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The Project was designed to avoid steep slopes and steep slope setbacks to the maximum extent practical. Where encroachment into steep slope areas was unavoidable, these improvements have been designed at the minimum size necessary and made to follow the natural contours of hillsides, therefore minimizing the amount of soil disturbance while preserving the natural topography of the area.

NOW, THEREFORE, BE IT FURTHER RESOLVED, by the City Council of the City of Del Mar that applications DRB24-003, CUP24-003, and CDP24-020 be approved subject to the conditions listed on the following pages:

General Conditions
[Note: The conditions listed below may have gaps in numbering or lettering. These gaps are intentional.]
G-1 [Business License]
Prior to commencement of any work on site, all contractors and subcontractors shall obtain a valid City of Del Mar Business License. The general contractor shall be responsible for ensuring that all subcontractors obtain required Business License and shall retain copies of said permits on site for verification by City staff.

G-3 [Development Authorization Limited to Plan Set]
This permit is granted based on submitted plans dated September 30, 2024, and so identified by the staff of the Del Mar Planning and Community Development Department.

Revisions to these plans and/or any proposals for modification shall require review and prior authorization from the appropriate entities of the City of Del Mar.

G-5 [Requirement for Building Permits]
Prior to commencement of work, the applicant or agent shall obtain all required Building Permits.

G-6 [Construction and Demolition Waste Recycling Requirement] Owners and builders generating any construction and demolition debris on a project must comply with the minimum requirements regarding recycling or reuse for salvage set forth in the 2016 California Green Building Standards Code, Title 24, Part 11. This includes, but is not limited to, the submittal of a Construction Waste Management Plan and a minimum diversion of 65% of non-hazardous construction and demolition waste. Signage shall be posted on-site with information identifying materials to be diverted. All work associated with the project shall be done in conformance with the City of Del Mar’s Mandatory Recycling Ordinance (No. 590).

G-7 [Code Compliance]
Approval of this application shall not waive the requirement for compliance with the provisions of the Del Mar Municipal Code or other applicable City regulations in effect at the time of Building Permit issuance, unless specifically waived in this permit authorization.
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G-11 [Plan for Construction-Phase Impacts]
Prior to issuance of Building Permits or commencement of project implementation (whichever comes first), the applicant shall provide a plan for construction-phase parking and equipment/materials storage for the project. The plan must include the following:
a. Identification of project material storage location; b. Identification of project equipment storage location; c. A construction-parking plan that minimizes the effect of construction worker parking in the neighborhood and shall include an estimate of the number of workers that will be present on the site during the various phases of construction and indicate where sufficient off-street parking will be utilized and identify any locations for off-site material deliveries. d. Location of any temporary sanitary facilities;
e. A note stating that “If on-street parking is utilized, a minimum street access clearance of 20ft. will be maintained”;
f. Map displaying any/all haul routes; and
g. Contact information (phone number and Email) for the on-site supervisor(s); The plan required herein shall be subject to the review and written approval of the Planning and Community Development Director, working in consultation with Parking Enforcement and Public Works Departments. The requirements mentioned above may be modified by the Planning and Community Development Director upon a determination that sufficient alternatives have been proposed which achieve a similar level of compliance.

G-13 [Permit Expiration]
This permit shall expire three years from the date of approval unless a Building Permit has been issued (if required by the DMMC) and substantial construction has been accomplished in reliance upon the permit. Pursuant to the DMMC, substantial construction is defined as:
completion of a minimum of 10% of the total amount of construction authorized by the permit, based on the monetary value of construction costs including grading, site preparation and construction but specifically excluding all costs associated with the acquisition of interest in the project site and all costs associated with the preparation and processing of permits or plans.

G-16 [Compliance with City Noise Regulations]
The applicant and all parties involved with implementation of the project shall comply with the regulations of the DMMC with regard to construction noise. The regulations stipulate that all construction activities are limited to the following periods: between 7:00 a.m. and 7:00 p.m./Monday through Friday and between 9:00 a.m. and 7:00 p.m. on Saturdays.

Construction activities are prohibited during other hours and on Sundays and City Holidays.

The City’s Noise Ordinance, Chapter 9.20 of the Del Mar Municipal Code, includes the dates of City Holidays, and can be viewed on the City’s web page (www.delmar.ca.us). 17 October 7, 2024 Item 07
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G-17 [Dig Alert]
Prior to excavation or trenching, the applicant shall call Underground Service Alert of Southern California (Dig Alert- 1-800-227-2600) for a mark out of service utilities.

G-18 [Rules for Construction-related Signage]
All construction-related signage posted at the project site shall comply with DMMC Chapter

30.84 (Signs). The pertinent sections of the Sign Chapter allow installation of a total 5.5 square feet of temporary signage on a residential property (that is cumulative of all signs posted). Such signs may be posted for a maximum of sixty (60) days in a calendar year.

The restrictions noted above do not apply to the Development Pending, Construction Noise Notice and Building Permit signs required by the City as part of the project review process.

All construction related signage, including City required signs, shall be removed prior to final approval of the project.

Engineering Conditions:

These conditions shall be incorporated into the Plan Set or added to the Project Specifications.

E-1 The Plan shall be in compliance with applicable National Pollutant Discharge Elimination System (NPDES) stormwater requirements and shall incorporate the use of “Best Management Practices” (BMPs) to control runoff or discharge onto the City rights-of-way and to avoid run-off onto adjacent properties.

In addition to the considerations listed above, the Plan shall also address/incorporate the following:

E-1A A topographical map indicating right-of-way lines, topographic features and existing and/or proposed utilities prepared by a Registered Civil Engineer or a Licensed Land Surveyor. Said map shall include two-foot contour lines and/or sufficient spot elevations to clearly represent existing and proposed topographical features. Survey shall extend the width of the right-of-way, within limits of work;
E-1B The location of all existing or proposed easements which extend past the right-of-way, which are to be used for the utility proposed; E-1C The inclusion of a traffic control plan for any phased work within the rightof-way, shall be submitted to the Public Works Department prior to commencement of work;
E-1D The proposed retaining walls shall be designed and constructed completely within the public right-of-way and easement. No portion of the wall or footing shall extend across the right-of-way line onto private property, 18 October 7, 2024 Item 07
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unless there is an easement. The limits of the footing of the proposed retaining walls shall be depicted on the plan set. The applicant shall provide a plan and profile view of the proposed retailing wall that will depict top of wall and top of footing elevations;
E-1E Retaining wall sub-drains will not discharge onto City streets, as they contribute to nuisance water. Sub-drains shall discharge on soil, within the right-of-way, to allow percolation back into the soil;
E-1F Trench restoration shall be per County of San Diego Regional Standard Drawings. Any distressed pavement within, or adjacent to, the saw-cut limits shall be removed and replaced to the satisfaction of the City Engineer at no additional cost to the City.

E-1G The methods for providing temporary erosion control during the construction phase of the project, complete with the inclusion of standard improvement plan and erosion control notes on the plan set; E-1H The applicant shall stabilize all slopes per City approved method; and E-1I Following construction completion, the project designer shall inspect asbuilt improvements. Significant discrepancies, if any, between the approved plans and as-built conditions shall be brought to the attention of the Planning and Community Development Department and City Engineer. An as-built plan prepared by the project designer will be required. Prior to final sign-off by the City Engineer, the project designer shall sign the as-built plan indicating that the project was completed in accordance with said plan.

E-2 Cuts into hillsides shall require the applicant to obtain a Land Conservation (LC) permit, pursuant to the provisions of the Del Mar Municipal Code (DMMC).

E-3 Prior to project commencement the applicant shall record any easement that is required on private property for the installation of the utility. The easement document shall be prepared to the satisfaction of the Planning and Community Development Director.

E-4 Should any retaining walls need to be designed by a California Licensed Structural Engineer, the applicant shall provide a Geotechnical Report for the project providing the required soil parameters needed to design the proposed retaining walls. The Report shall be prepared, signed and sealed by a Certified Engineering Geologist and a Geotechnical Engineer or Registered Civil Engineer. This Report shall be subject to review and approval by the City Engineer, City Building Department, and if deemed necessary, a third-party with expertise in geotechnical issues. The report required herein shall:

E-4A Evaluate existing site constraints;
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E-4B Evaluate potential effect of proposed construction on nearby slopes, sensitive topographic features, and neighboring properties; E-4C Evaluate any mitigation measures if necessary;
E-4D Evaluate recommendations for any special construction methods as necessary; and
E-4E Provide recommendations for back-cuts for the construction of retaining walls. These recommendations shall include a time limit that the back-cuts can remain in place without either creating a stable backfill or completing construction of the approved retaining walls.

E-5 The applicant shall provide a construction-parking plan that minimizes the effect of construction worker parking in the neighborhood and shall include an estimate of the number of workers that will be present on the site during the various phases of construction and indicate where sufficient off-street parking will be utilized and identify any locations for off-site material deliveries. Said plan shall be approved by the Department of Public Works and the City Engineer prior to issuance of City permits and shall be enforced during construction. Failure to enforce the parking plan may result in suspension of the City permits.

E-6 The applicant shall restrict hours of work for the use of heavy equipment during grading and improvements between the hours of 7:30AM to 5:00PM, this includes the warmup of equipment. Saturday, Sunday and City holiday work is prohibited.

E-7 All construction activities undertaken shall comply with the City’s Community Plan and Municipal Code. In cases of conflict between the City’s Municipal Code, these standard conditions of approval, the governing priority shall be, to the extent legally permitted, as follows: 1) City’s Municipal Code regulations; 2) City’s Community Plan; 3) Standard Conditions.

E-8 Pedestrian access along all public streets in the project area shall be maintained at all times unless material is being delivered to the site.

E-9 Any special or unique surfaces shall be restored in-kind. For example, cobblestone gutters shall be restored in-kind. Permittees are required to salvage as much of the existing materials as possible for reuse in the restoration and shall supply any new material with substantially similar characteristics as required for proper restoration.

E-10 The Permittee shall warrant that any trench backfill, trench restoration, pavement restoration, or other work performed in the Right-of-Way will be free from all defects due to faulty materials or quality of work for a period of one (1) years after the date the work was inspected and approved by the City. Upon failure of the 20 October 7, 2024 Item 07
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pavement restoration within the one (1) year warranty period, the Permittee shall repair or remove and replace all such backfill, Pavement restoration, or other work, together with any other Pavement areas directly affected by that removal or replacement, without any expense to the City.

E-11 Construction Start Notification Letters shall be received by all addresses at least two days before commencing the work and must include the project limits, general scope of work, construction start and end dates, and name of contractor if other than the Applicant.

E-12 When the permitted work will affect residents’ access to their property or will disrupt utility services, written notices must be hand delivered by means of door hangers to each residence, as well as to the Public Works Department. The Work Area and Schedule must be included on the notice and all notices delivered at least five (5) business days in advance of commencing work.

E-13 All construction work shall be performed and conducted so as not to interfere with access to the fire hydrants. Materials or obstructions shall not be placed within 15 feet of fire hydrants. Accessways provided by Contractor leading to fire hydrants shall be kept free of all obstructions at all times.

E-14 The Contractor performing work in the right-of-way shall cleanup the work area daily, including the removal of debris and any excess construction material. There shall be no spoil material stockpiling within the right-of-way upon completion of the workday. Dusty conditions shall be controlled daily by appropriate methods such as sweeping when warranted or as directed by the City Engineer.

Special Design Feature Conditions:

SP-1 [Cultural Monitoring]
Ground disturbing activities along San Dieguito Drive, where adjacent to the lagoon, shall include an archaeological and Native American monitoring program as part of the project’s construction operating procedures.

SP-2 [Tree Protection Plan]
The contractor performing the work shall adhere to the Tree Protection Plan measures identified in the Arborist Report Titled “City of Del Mar Utility Undergrounding Tree Protection Project”
SP-3 [Pole Removal- Canyon Areas]
The contractor removing poles in sensitive canyon areas shall walk in to hand cut the poles at ground level, fell the pole, cut into manageable pieces, and haul out with small rubber tired tractor-trailer or wheelbarrow. Alternatively, they may choose to hand cut the pole at ground level and helicopter the pole out of the canyon area. No other alternatives shall be used unless otherwise reviewed and approved to the satisfaction of the City. Notification of 21 October 7, 2024 Item 07
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removal of poles via helicopter shall be provided to the City’s Project Manager seventy-two (72) hours in advance.

SP-3 [Pole Removal- Lagoon Area]
The contractor removing poles in sensitive lagoon areas shall perform their work during low tides and walk in to hand cut the poles at ground level, leave a portion of the pole at the lagoon (to remain approximately 6-8 inches above grade), and utilize a truck parked at the street with a boom to bring the pole to the street for processing the pole for disposal. For poles which are not reachable with the boom the contractor shall walk in to hand cut the poles at ground level, fell the pole, cut into manageable pieces, and haul out with small rubber-tired tractor-trailer or wheelbarrow, No other alternatives shall be used unless otherwise reviewed and approved to the satisfaction of the City. This condition does not supersede any Coastal Commission required conditions for any poles located in the lagoon in Coastal Commission jurisdiction.

SP- 4 [On-Site Biologist]
SP-4 A. Prior to construction, a qualified biologist shall attend a pre-construction meeting to present a “worker environmental awareness training” to all construction personnel to discuss the project’s construction operating procedures (i.e., contractor commitments) and BMPs.

SP-4 B. During construction, construction activities (including access and staging areas) shall be restricted to areas presented in the report titled “Final Biological Resources Letter Report for the Proposed Crest Canyon Undergrounding District X1A Project, City of Del Mar, San Diego County, California” and as reflected on the construction drawings. The qualified biologist shall conduct routine construction monitoring to monitor environmental compliance and ensure the project construction operating procedures and BMPs are implemented and maintained.

SP-4 C. The monitoring biologist shall document field activity via monitoring forms for submittal to the City to demonstrate compliance. If items of non-compliance are identified, the biologist shall notify the on-site construction superintendent immediately to discuss and implement corrective actions. Issues of non-compliance that result in direct or indirect effects on sensitive biological resources shall be documented and provided to the City within 72-hours of identification. The monitoring biologist shall note/act to prevent any new disturbances to habitat, flora, and/or fauna on site (e.g., flag plant specimens for avoidance during access). If active nests or other previously unknown sensitive resources are detected, all project activities that directly impact the resource shall be delayed until species specific local, state, or federal regulations have been determined and applied by the Qualified Biologist.

SP-4 D. Post-Construction The qualified biologist shall survey the project work areas to verify that authorized limits of work were not exceeded and provide documentation via brief email or letter to the City. In the event that direct effects to sensitive vegetation exceed previously approved amounts, these additional effects shall 22 October 7, 2024 Item 07
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be documented, quantified, and mitigated in accordance with City ordinances; CEQA; and other applicable local, state, and federal laws.

SP-5 [Storm Water/Erosion Control Monitor]
SP-5 A. Prior to construction, a qualified storm water/erosion control monitor, retained by the contractor, shall educate all construction personnel about storm water pollution prevention, BMPs, and other measures needed during various construction activities to manage urban runoff and prevent unauthorized discharges from construction.

SP-5 B. A qualified storm water/erosion control monitor shall be responsible for monitoring weather conditions and implementation of any emergency plans as needed, evaluating the conditions of the site, overseeing construction operations, and inspecting and maintaining of the BMPs to keep the site in compliance.

SP-5 C. Appropriate BMPs shall be implemented during construction to capture and/or direct flows away from sensitive natural areas and away from the storm drain system to prevent toxins, chemicals, petroleum products, exotic plant materials, erosion, sediments, and other foreign materials from entering and degrading the adjacent San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive natural areas.

SP-6 [Clearing of Vegetation]
Clearing of vegetation in sensitive natural areas shall be minimal and will occur immediately adjacent to developed areas and vegetation trimming and overland pedestrian access in sensitive natural areas shall be minimal, and therefore, will not result in the introduction or expansion of invasive plants (i.e., plant species on the California Invasive Plant Council [Cal-IPC] “high” and “moderate” list; Cal-IPC 2024) into areas within and adjacent to proposed project features.

SP-7 [Project Hours to Avoid Artificial Light Sources]
Project-related activities within and adjacent to San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive natural areas shall be of short duration and limited to daylight hours (i.e., will not require the use of artificial light sources) to avoid deterring wildlife from these areas.

SP-8 [Breeding/Nesting Bird Avoidance]
Work within and adjacent to sensitive biological areas (i.e., San Dieguito Lagoon and Crest Canyon Open Space) shall occur outside of the general bird breeding/nesting season (generally February 1 to August 31), where feasible. Work outside of these 23 October 7, 2024 Item 07
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sensitive biological areas, within developed areas and residential yards, which requires vegetation trimming or vegetation removal shall also be timed to occur outside of the general bird breeding/nesting season (i.e., no vegetation impacts between February 1 to August 31).

SP-8 A. If avoidance of the bird breeding/nesting season is not feasible, then a pre-construction survey must be conducted by a qualified biologist within seven days prior to the start of work to search for nesting birds within project work areas and the surrounding 300 feet, where feasible. If the surveys conclude no active nesting, the work shall resume as planned. If project activities are delayed or suspended for more than seven days during the breeding season, surveys shall be repeated prior to re-initiating work.

SP-8 B. If results of a bird survey identify active nesting birds within or adjacent to project work areas, an appropriate nest buffer (i.e., work avoidance area) shall be established by the qualified biologist, and if feasible, fenced or demarcated to restrict access in the buffer. Buffer distances may include, but shall not be restricted to, 25 feet around nests of common, non-listed birds and 300 feet around nests of sensitive, listed birds. Each of these buffers may be reduced, if appropriate, and as directed by a qualified biologist. The reduction in no-work buffers shall be approved by the City prior to implementation. Each nest avoidance buffer zone shall not be disturbed until a qualified biologist has determined that the young have fledged, or the nest has otherwise become inactive.

SP-8 C. If construction activities (i.e., those potentially exceeding 60dBa hourly average, such as trenching, excavating, paving, and etc.) adjacent to the San Dieguito Lagoon and Crest Canyon Open Space are not completed prior to the breeding season for coastal California gnatcatcher, light-footed Ridgway’s rail, and Belding’s savannah sparrow, and these species are found present during the pre-construction surveys, then appropriate noise attenuation measures shall be implemented to reduce construction noise levels at the edge of occupied habitat. Noise levels shall be recorded by a qualified noise specialist and intermittent monitoring shall be conducted by a qualified biologist to ensure project-generated noise does not exceed 60dBa hourly average, unless ambient noises exceed 60dBa for which construction can proceed up to the ambient noise level. If noise attenuation measures are determined necessary by the qualified biologist, the following measures shall be incorporated:
o Construction equipment shall be properly outfitted and maintained with manufacturer-recommended noise-reduction devices.
o Diesel equipment shall be operated with closed engine doors and equipped with factory-recommended mufflers.
o Mobile or fixed “package” equipment (e.g., arc-welders and air compressors) shall be equipped with shrouds and noise control features that are readily available for that type of equipment.
o Electrically powered equipment shall be used instead of pneumatic or internal- combustion powered equipment, where feasible. o Unnecessary idling of internal combustion engines (e.g., in excess of five 24 October 7, 2024 Item 07
Resolution No. 2024-XX

Page 15 of 16 ends

minutes) shall be prohibited.
o The use of noise-producing signals, including horns, whistles, alarms, and bells, shall be for safety warning purposes only.
o No project-related public address or music system shall be audible at any adjacent sensitive receptor.
o Temporary sound barriers or sound blankets shall be installed between construction operations and adjacent noise-sensitive habitat.

SP-9 [Repave Streets and Driveways]
Streets and driveways disturbed during construction will be repaved or repaired in-kind to match adjacent undisturbed roadway.

SP-10 [Use of Native Hydroseed]
As noted on the final construction plans, a California native hydroseed mix will be used to replace vegetation that has been disturbed or cleared during construction, where necessary, except for within a few properties where homeowners have requested the use of replacement ornamental plants in their yards disturbed during construction. The native hydroseed mix shall be submitted to the City by the contractor and approved by the City prior to application.
25 October 7, 2024 Item 07
Resolution No. 2024-XX

Page 16 of 16 ends

PASSED, APPROVED, AND ADOPTED by the City Council of the City of Del Mar, California, at a Regular Meeting held the 7th day of October, 2024. ___________________________
Dave Druker, Mayor
City of Del Mar
APPROVED AS TO FORM:
__________________________
Leslie E. Devaney, City Attorney
City of Del Mar
ATTEST AND CERTIFICATION:

STATE OF CALIFORNIA

COUNTY OF SAN DIEGO

CITY OF DEL MAR
I, Sarah Krietor, Administrative Services Manager/City Clerk of the City of Del Mar, California, DO HEREBY CERTIFY, that the foregoing is a true and correct copy of Resolution No. 2024-XX, adopted by the City Council of the City of Del Mar, California, at a Regular Meeting held the 7th day of October 2024 by the following vote:

AYES:

NOES:

RECUSE:

ABSENT:

ABSTAIN:
_______
Sarah Krietor, Administrative Services
Manager/City Clerk
City of Del Mar
26 October 7, 2024 Item 07

ATTACHMENT B
RESOLUTION NO. 2024-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF DEL

MAR, CALIFORNIA, APPROVING GRANTING OF SDG&E

EASEMENTS ON THE CITY PROPERTIES AT SAN DIEGUITO
DRIVE AND RACETRACK VIEW DRIVE (APN: 299-200-72-00)
AND 15TH STREET (APN: 299-260-45-00)
WHEREAS, on July 12, 2021, the City Council adopted a resolution establishing an Underground Utility District in the City of Del Mar, located along Crest Road and in the canyon below Crest Road, which lays west and north of the City of San Diego border and south of the lagoon along San Dieguito Drive; and
WHEREAS, the utility undergrounding design requires the placement of dry utilities on City property along San Dieguito Drive and Racetrack View Drive (APN: 299-200-72- 00) and 15th Street (APN: 299-260-45-00); and
WHEREAS, to perfect the undergrounding project it is necessary for the City to grant two Easements in favor of SDG&E (attached herein as: Exhibits “A” and “B” also referred to as the “Properties”).

NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Del Mar grants to SDG&E two utility easements, found in Exhibits A and B, in support of the undergrounding project. This Resolution constitutes the resolution of conveyance by the City of the Properties for the purposes of Government Code Section 27281. The above recitals are true and correct; and
BE IT FURTHER RESOLVED, that the City Council hereby authorizes the City Manager (or the City Manager's designee) to execute such other documents and take such other actions on behalf of the City as may be required to implement the intent of this Resolution that conveys the two subject utility easements to SDG&E; and BE IT FURTHER RESOLVED, this Resolution shall take immediate effect from and after its passage and approval.

PASSED, APPROVED, AND ADOPTED by the City Council of the City of Del Mar, California, at the Regular Meeting held this 7
th day of October 2024.
_____________________________________
Dave Druker, Mayor
City of Del Mar
27 October 7, 2024 Item 07
Resolution No. 2024-XX

Page 2 of 2 ends

APPROVED AS TO FORM:
________________________________
Leslie E. Devaney, City Attorney
City of Del Mar
ATTEST AND CERTIFICATION:

STATE OF CALIFORNIA

COUNTY OF SAN DIEGO

CITY OF DEL MAR
I, SARAH KRIETOR, Administrative Services Manager/City Clerk of the City of Del Mar, California, DO HEREBY CERTIFY, that the foregoing is a true and correct copy of Resolution No. 2024-XX, adopted by the City Council of the City of Del Mar, California, at a Regular Meeting held the 7
th day of October 2024, by the following vote:

AYES:

NOES:

RECUSE:

ABSENT:

ABSTAIN:

Sarah Krietor, Administrative Services
Manager/City Clerk
City of Del Mar
28 October 7, 2024 Item 07
T:landServices:NonRecords:NewBusiness: -1- 810236S
Rev. 1
Recording Requested by
San Diego Gas & Electric Company
When recorded, mail to:

San Diego Gas & Electric Company
8690 Balboa Ave.

San Diego, CA 92123
Attn: Real Estate Records – CPA01

SPACE ABOVE FOR RECORDER'S USE
Project No. 3-436875
Notif. No. 3-436959
A.P.N. No. 299-200-72 Transfer Tax None
SR No. : 1337505 SAN DIEGO GAS & ELECTRIC COMPANY
RW 375537

EASEMENT
CITY OF DEL MAR, A MUNICIPAL CORPORATION, (Grantor), grants to SAN DIEGO GAS & ELECTRIC COMPANY, a corporation (Grantee), an easement and right of way in, upon, over, under and across the lands hereinafter described, to erect, construct, change the size of, improve, reconstruct, relocate, repair, maintain and use facilities consisting of:

1. Underground facilities and appurtenances for the transmission and distribution of electricity.

2. Communication facilities, and appurtenances, used solely and exclusively for SDG&E internal communications.

The above facilities will be installed at such locations and elevations upon, along, over and under the hereinafter described easement as Grantee may now or hereafter deem convenient or necessary.

Grantee also has the right of, ingress and egress, to, from and along this easement in, upon, over and across the hereinafter described lands. Grantee further has the right, but not the duty to clear and keep this easement clear from, explosives, buildings, structures and materials.

The property in which this easement and right of way is hereby granted is situated in the City of Del Mar, County of San Diego, State of California described as follows:

That portion of Lot 768 of Arden Heights No. 6, according to Map thereof No. 1592, filed in the Office of the County Recorder of said County of San Diego, together with a portion of vacated street adjoining said Lot 768, said portion is more particularly described in a deed recorded on January 26, 1982 as Document No. 82-021122 of Official Records, in the Office of the County Recorder of said County of San Diego.

ATTACHMENT B EXHIBIT A 29 October 7, 2024 Item 07
T:landServices:NonRecords:NewBusiness: -2- 810236S
Rev. 1
The easement in the aforesaid property shall be a strip of land, including all of the area lying between the exterior sidelines, which sidelines shall be three (3) feet, measured at right angles, on each exterior side of each and every facility installed, the approximate location being shown and delineated as "UTILITY FACILITIES" on the Exhibit "A", attached hereto and made a part hereof.

Grantor shall not erect, place or construct, nor permit to be erected, placed or constructed, any building or other structure, plant any tree, drill or dig any well, within this easement.

Grantor shall not increase or decrease the ground surface elevations within this easement after installation of Grantee's facilities, without prior written consent of Grantee, which consent shall not unreasonably be withheld.

Grantee shall have the right but not the duty, to trim or remove trees and brush along or adjacent to this easement and remove roots from within this easement whenever Grantee deems it necessary. Said right shall not relieve Grantor of the duty as owner to trim or remove trees and brush to prevent danger or hazard to property or persons.

Grantee shall indemnify, defend and hold Grantor harmless from and against all losses, damages, or expenses that Grantor may sustain or become liable for that result from the construction or maintenance of Grantee's facilities and all fixtures and equipment in connection therewith. Such indemnification shall include any losses, damages, or expenses arising solely out of negligence or intentional acts of Grantee but excepting any losses, damages, or expenses resulting from the negligent or intentional acts of the Grantor and third parties.

CONDUITS CARRY HIGH VOLTAGE ELECTRICAL CONDUCTORS, therefore Grantor shall not make or allow any excavation or fill to be made within this easement WITHOUT FIRST NOTIFYING SAN DIEGO GAS & ELECTRIC COMPANY BY CALLING (619) 696-2000, and OBTAINING PERMISSION.

The legal description for this easement was prepared by San Diego Gas & Electric Company pursuant to Section 8730 of the Business and Professions Code, State of California.

This easement shall be binding upon and inure to the benefit of successors, heirs, executors, administrators, permittees, licensees, agents or assigns of Grantor and Grantee.

Drawn: SLS/BT
Checked: SM
Date: 01/14/2024 (rev.07/22/2024)
ATTACHMENT B EXHIBIT A 30 October 7, 2024 Item 07
T:landServices:NonRecords:NewBusiness: -3- 810236S
Rev. 1
IN WITNESS WHEREOF, Grantor executed this instrument this day of , 20 .

GRANTOR

CITY OF DEL MAR, A MUNICIPAL

CORPORATION
Signature
Print Name
Title

STATE OF CALIFORNIA

COUNTY OF
On , before me ,
(name, title of officer)
personally appeared ,
who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.

I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct.

WITNESS my hand and official seal.
(Notary Seal) (Signature of Notary Public)
A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is attached, and not the truthfulness, accuracy, or validity of that document.

ATTACHMENT B EXHIBIT A 31 October 7, 2024 Item 07
ATTACHMENT B EXHIBIT A 32 October 7, 2024 Item 07
T:LandServices:Non-Records:NewBusiness: -1- 810236S
Rev. 1
Recording Requested by
San Diego Gas & Electric Company
When recorded, mail to:

San Diego Gas & Electric Company
8690 Balboa Ave.

San Diego, CA 92123
Attn: Real Estate Records – CPA01

SPACE ABOVE FOR RECORDER'S USE
Project No. 3-436875
Notif. No. 3-474347
A.P.N. No. 299-260-45 Transfer Tax None
SR No. : 1350098 SAN DIEGO GAS & ELECTRIC COMPANY
RW 376098

EASEMENT
CITY OF DEL MAR, A MUNICIPAL CORPORATION (Grantor), grants to SAN DIEGO GAS & ELECTRIC COMPANY, a corporation (Grantee), an easement and right of way in, upon, over, under and across the lands hereinafter described, to erect, construct, change the size of, improve, reconstruct, relocate, repair, maintain and use facilities consisting of:

1. Underground facilities, together with aboveground structures consisting of, but not limited to, pad-mounted electrical equipment, and appurtenances for the transmission and distribution of electricity.

2. Communication facilities, and appurtenances, used solely and exclusively for SDG&E internal communications.

The above facilities will be installed at such locations and elevations upon, along, over and under the hereinafter described easement as Grantee may now or hereafter deem convenient or necessary.

Grantee also has the right of ingress and egress, to, from and along this easement in, upon, over and across the hereinafter described lands. Grantee further has the right, but not the duty to clear and keep this easement clear from explosives, buildings, structures and materials.

The property in which this easement and right of way is hereby granted is situated in the City of Del Mar, County of San Diego, State of California described as follows:

Lot F in Block 28 of Arden Heights No. 3, according to Map thereof No. 1285, filed in the Office of the County Recorder of said County of San Diego.

ATTACHMENT B EXHIBIT B 33 October 7, 2024 Item 07
T:LandServices:Non-Records:NewBusiness: -2- 810236S
Rev. 1
The easement in the aforesaid property shall be a strip of land, including all of the area lying between the exterior sidelines, which sidelines shall be three (3) feet, measured at right angles, on each exterior side of each and every facility installed, the approximate location being shown and delineated as "UTILITY FACILITIES" on the Exhibit "A", attached hereto and made a part hereof.

Grantor shall not erect, place or construct, nor permit to be erected, placed or constructed, any building or other structure, plant any tree, drill or dig any well, within this easement.

Grantee shall have the right but not the duty, to trim or remove trees and brush along or adjacent to this easement and remove roots from within this easement whenever Grantee deems it necessary.

Said right shall not relieve Grantor of the duty as owner to trim or remove trees and brush to prevent danger or hazard to property or persons.

The legal description for this easement was prepared by San Diego Gas & Electric Company pursuant to Section 8730 of the Business and Professions Code, State of California.

This easement shall be binding upon and inure to the benefit of successors, heirs, executors, administrators, permittees, licensees, agents or assigns of Grantor and Grantee.

Drawn: SLS/BT
Checked: SM
Date: 06/27/2024 (rev.07/22/2024)
ATTACHMENT B EXHIBIT B 34 October 7, 2024 Item 07
T:LandServices:Non-Records:NewBusiness: -3- 810236S
Rev. 1
IN WITNESS WHEREOF, Grantor executed this instrument this _____ day of _______________, 20_____.

GRANTOR

CITY OF DEL MAR, A MUNICIPAL

CORPORATION
____________________________________
Signature
____________________________________
Print Name
____________________________________
Title

STATE OF CALIFORNIA

COUNTY OF
On , before me , (name, title of officer)
personally appeared ,
who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.

I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct.

WITNESS my hand and official seal.
(Notary Seal)
(Signature of Notary Public)
A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is attached, and not the truthfulness, accuracy, or validity of that document.

ATTACHMENT B EXHIBIT B 35 October 7, 2024 Item 07
Owner: CITY OF DEL MAR,

A MUNICIPAL CORPORATION
Recorded: January 03, 1966
Doc No: 1966-88
APN: 299-260-45 APN: 299-260-60
ATTACHMENT B EXHIBIT B 36 October 7, 2024 Item 07

ATTACHMENT C
RESOLUTION NO. 2024-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF DEL

MAR, CALIFORNA, GRANTING AN UNDERGROUND UTILITY
EXEMPTION ALLOWING 1810 SAN DIEGUITO DRIVE TO

MAINTAIN TWO OVERHEAD ELECTRIC POLES AND RELATED

COMMUNICATION FACILITIES
WHEREAS, on July 12, 2021, the Del Mar City Council adopted a Resolution 2021- 36 establishing an Underground Utility District (UUD) in the City of Del Mar, along Crest Road and in canyon below Crest Road within areas west and north of the City of San Diego border and south of the lagoon along San Dieguito Drive; and WHEREAS, the UUD is designated as UUD X1A (Crest Canyon); and WHEREAS, Resolution 2021-36 required the removal of all poles, overhead wires and associated overhead structures, and the underground installation of wires and facilities for supplying electric, communication, and similar or associated service within the UUD; and
WHEREAS, the timeline that a property must be able to receive underground service is establish by Section 23.54.030 of the Del Mar Municipal Code (“DMMC”) and by subsequent resolutions by the City Council; and
WHEREAS, pursuant to Section 23.54.040 DMMC, whenever the Council creates a UUD and orders the removal of overhead electric or communication facilities therein as provided in Section 23.54.030 hereof, it shall be unlawful for any person or utility to erect, construct, place, keep, maintain, continue, employ or operate overhead electric or communication facilities in the district after the date when said overhead facilities are required to be removed by such resolution, except as said overhead facilities may be required to furnish service to an owner or occupant of property prior to the performance by such owner or occupant of the underground work necessary for such owner or occupant to continue to receive utility service as provided in Section 23.54.090 hereof, and for such reasonable time required to remove said facilities after said work has been performed and except as otherwise provided in this Chapter; and WHEREAS, pursuant to Section 23.54.090 DMMC, every person owning, operating, leasing, occupying or renting a building or structure within a district shall perform construction and provide that portion of the service connection on his property between the facilities referred to in Section 23.54.080, and the termination facility on or within said building or structure being served, all in accordance with applicable rules, regulations and tariffs of the respective utility or utilities on file with the commission and in accordance with applicable requirements of State laws and City ordinances; and WHEREAS, an exception to these pole removal requirements is found in Section

23.54.050 DMMC, there the City Council may grant special permission, on such terms as the Council may deem appropriate, in cases of unusual circumstances, without discrimination as to any person or utility, to erect, construct, install, maintain, use, or operate overhead electric or communication facilities; and 37 October 7, 2024 Item 07
Resolution No. 2024-XX

Page 2 of 3 ends

WHEREAS, the private service lateral for 1810 San Dieguito Drive requires removal of two poles, installation of approximately 900 linear feet of trench and conduit within the existing private driveway, installation of three handholes, installation of one pedestal, and installation of a transformer pad; and
WHEREAS, based on City bid data the cost burden to the property owner is estimated to be approximately $300,000 and is largely due to the length of the lateral; and WHEREAS, given these excessive cost burdens and property impacts, the property owner of 1810 San Dieguito Drive notified the Undergrounding Program Team of refusal to underground the service lateral; and
WHEREAS, it is an unusual circumstance where a property owner is required to spend approximately $300,000 to underground their service lateral; and WHEREAS, an exemption from undergrounding the private service lateral will have two poles to remain; and
WHEREAS, the property owner of 1810 San Dieguito Drive was provided notice of the property owners obligations pursuant to the Municipal Code and of this resolution.

NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Del Mar, California, that:

1. The above recitals are true and correct.

2. The City Council grants special permission to 1810 San Dieguito Drive to maintain overhead electric and communication facilities as an exemption to the requirements established in the formation of Underground Utility District X1A (Crest Canyon).

3. This exemption does not apply to any future new construction requirements for utility undergrounding of the service connections.

Page 3 of 3 ends

________________________________
Leslie E. Devaney, City Attorney
City of Del Mar
ATTEST AND CERTIFICATION:

STATE OF CALIFORNIA

COUNTY OF SAN DIEGO

AYES:

NOES:

RECUSE:

ABSENT:

ABSTAIN:

Sarah Krietor, Administrative Services
Manager/City Clerk
City of Del Mar
39 October 7, 2024 Item 07

ATTACHMENT D
1050 Camino Del Mar, Del Mar, CA 92014 | 858.755.9313 | www.delmar.ca.us October 7, 2024
Utility Specialists Southwest, Inc. SENT VIA EMAIL
Attn: Duane Stroobosscher
4429 Morena Boulevard
San Diego, CA 92117
[email protected]
RE: TASK ORDER AMENDMENT & NOTICE TO PROCEED FOR THE UTILITY UNDERGROUND DISTRICT X1A (CREST CANYON) – PRE-CONSTRUCTION SERVICES (ACCOUNT 02.7000.7203 – PO#58-00530)
This Task Order (TO) Amendment and Notice to Proceed (NTP) is issued pursuant to the terms and conditions contained in the as-needed Specialized Electrical Engineering Services Related to Implementation of a Citywide Undergrounding Program Agreement between the City of Del Mar and Utility Specialists Southwest, Inc. (Consultant), the term for which is December 16, 2019, to December 16, 2024.

Consultant shall execute tasks related to the Utility Underground District X1A (Crest Canyon), as described in the Consultant’s proposal included as Exhibit A to this Task Order. The project cost for this Task Order Amendment shall not exceed $57,755. The project schedule shall commence upon execution of this Task Order Amendment/Notice to Proceed, and shall be completed by April 2025, to the satisfaction of the Public Works Director, in accordance with the proposed Scope of Work included in Exhibit A.

The primary contact for this Task Order and invoicing is Martin Boyd, Principal Engineer, who can be reached at [email protected] and (858) 375-9531. Please sign and return a copy of this Task Order electronically through OneSpan, the City’s electronic document routing program.

Please contact Management Analyst Denise Galvan at [email protected] or (858) 704-3657 with any questions about executing this Task Order amendment.

Approved by: Accepted by:

City of Del Mar Utility Specialists Southwest, Inc.
_____________________________________ _______________________________________ Ashley Jones Date Duane Stroobosscher Date
City Manager Vice President
cc: Joe Bride, Public Works Director
Martin Boyd, Principal Engineer
Exhibit A: Utility Specialists Southwest,Inc. - UUD X1A Pre-Construction Services Scope of Work
40 October 7, 2024 Item 07
Item
#
Description US Principal KCM
Principal
US
Sr. PM
KCM
Sr. PM
US
Asst PM
KCM
PM KCM PE Fuscoe Total Cost
1 City and Agency Coordination
a Participate in by-weekly coordination calls with CDM staff - assumes a one-hour call every other week for 5 months with time divided between Districts X1A and 1B 5.0 5.0 5.0 5.0 $3,700 b Prepare agendas, draft and distribute minutes for by-weekly coordination calls. 6.0 $1,050 c Attend City Council hearings, if requested by City staff. Assumes attendance at two hearings plus travel. 4.0 $700 c2 Attend quarterly UPAC meetings during design & bidding phases. Attendance at quarterly in-person meetings (3 EA), assist City staff with meeting preparation and follow up action items with time divided between Districts 1A, X1A & IB. $0 d Prepare X1A status reports and other handout materials, as requested by City staff, for City Council hearings. 2.0 $350 e Assist staff with negotiations with SDG&E and other utility agencies - Assist in obtaining SDGE easements. *Estimated $0 f Draft and distribute meeting minutes for SDGE and utility meetings and site visits $0 g Filing and document management. 4.0 $700
h Assist staff with SDGE easement eminent domain material preparation. $0 i *Prepare New Equipment Map based on the Boundary Map 4.0 24.0 $4,660 Subtotal City and Agency Coordination 5.0 0.0 5.0 5.0 0.0 25.0 24.0 0.0 $ 11,160 2 District X1A Design
a Surveying & Mapping $0
b Concept Layout 6.0 $1,080
c Design Coordination for Public ROW $0
* Develop design and construction schedules. Update design schedule periodically. 1/2 hour /week. $0 * Prepare exhibits/technical documents as required 1.0 5.0 $1,000 * Easement coordination; Permit To Entry (PTE); includes communications/meetings with homeowners as necessary to obtain executed SDG&E and City easements (assume 1 hr. per PTE), at the direction of City Staff 21.0 $3,675 * Coordinate with homeowners on SDGE easements at the direction of staff. 32.0 $5,600 d Design Coordination for Private lateral extensions 4.0 $720 * Revise exhibits/technical documents as required 1.0 7.0 $1,420 e 50% Civil Design - complete. $0
f 100% Civil Design: Allowance for Plats & Legals for Retaining Wall Easements $0 g Improvement Plan Processing $24,000 $24,000
h Allowance for other design support services, as requested - see contingency. $0 i Filing and document management. 2.0 $350
Subtotal District Design 0.0 0.0 10.0 1.0 0.0 63.0 5.0 $24,000 $37,845 3 Resident Interface and Project Status Tracking
a Attend meetings with City Attorney and staff to finalize City policy $0 b Draft, in coordination with CDM, Right of Entry request $0 c Draft, in coordination with CDM, homeowner notification letters regarding laterals and easements $0 d Assist City in responding to resident questions submitted via website 30.0 $5,250 e Finalize format of Customer-Based Tracking and Monitoring Database $0 f Populate database with property owner and resident contact information: Periodic repopulation of database with more current owner information from GIS and water billings have been required. 2.0 $350 g Regular updates to the database with project status and homeowner communications. Includes tracking and reports, assumed at approximately 2 hours average—per month. 10.0 $1,750
h Schedule, coordinate, PowerPoint and lead neighborhood meeting $0 i Draft, in coordination with CDM, district design and bidding status update letters to residents. Assumed sent out quarterly. $0 j Provide technical content and status updates for use in periodic media outreach and website updates. $0 k Draft, in coordination with CDM, hearing notification to residents for City Council decision on progressing into construction. $0 l Filing and document management. 8.0 $1,400
Subtotal Resident Interface and Communications 0.0 0.0 0.0 0.0 0.0 50.0 0.0 $0 $8,750 4 Public Bidding Support
a Preparation of front-end bid documents, bid items, and special terms and conditions. $0 b Publish Notice Inviting Bids. $0
c Contact potential bidders and distribute bid package. $0 d Coordinate and manage Pre-Bid meeting. $0
e Manage bid RFI’s, preparation of bid addendums, and distribute addendums to bidders, assumes up to three separate addendums. $0 f Coordinate and manage Bid Opening meeting. $0
g Review bids for completeness and accuracy, assumes six bidders, and prepare bid analysis. $0 Subtotal Public Bidding Support 0.0 0.0 0.0 0.0 0.0 0.0 0.0 $0 $0 Total Hours During Design & Bidding 5.0 0.0 15.0 6.0 0.0 138.0 29.0 Average Hours per Week (based upon 5 month schedule) 0.3 0.0 0.8 0.3 0.0 6.9 1.5 Rate Per Hour $190 $215 $180 $195 $120 $175 $165
Total Cost During Design & Bidding $950 $0 $2,700 $1,170 $0 $24,150 $4,785 $24,000 Total Estimated Cost for Remaining to Complete Design & Bidding Exclusions
Attendance at Meetings/Hearings not Specifically Included Graphic Design will be a Reimbursable Expense Summary of District X1A Design Task Orders Notifications to property owners regarding consequences of refusing to underground Direct Mail will be a Reimbursable Expense TO #03 Approved $663,985 Participation in enforcement actions on homeowners refusing to underground GIS Support and GIS Exhibits TO #03a Approved $67,100 Management of private lateral undergrounding excluded – assumes coordination only City Resident Engineer Inspections TO #03b Approved $119,409 Communications Subconsultant Support - to be provided by City Consultant TO #03c Pending $57,755 Social Media Development, Operations - Assume by City New Total $908,249 9/25/2024
City of Del Mar Undergrounding Program - Task Order #03c - District X1A Add Hours Task Order #03b Services - District X1A Crest Remaining to Complete Task Order #03c includes additional services highlighted below from July 2024 through Bid package completion through November 2024. $57,755
ATTACHMENT D EXHIBIT A 41 October 7, 2024 Item 07

ATTACHMENT E
42 October 7, 2024 Item 07
Utility Undergrounding District (UUD X1A) - Crest Canyon 06/15/2021
P62475 Exempt
from Removal
(to be removed
as part of
SDG&E project)
0 2100 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0 0
0 0
0 0
0 0
0 0
0 0
690 567 624 535
608
550 548 540532
1561
1429 1465 1569
655 1492
1440 1507 641625 617 544 1810 545 625
650
1567
1449 1604
1420 1450 1522 1601
1490 1330 1361 1435 1439
1535
1505
1515
1441
1440 1305 1346 1370 1445
1406 1373 1557
1555
1525
652
131613451335 14261420 1340 13461352
1233 1250 1230 1232 1210 1402
1200 1260
1180 1174
1234 1236 1238 1223
1209
1203
1145
785 1130 1135
1230
1122
1110
1042 1036 1022 1016 999 945 905
912786 766
787 860 767 834 0 628
615 627 645
755 757
728
801 743 733 725 715 701 San Dieguito Dr.

Oribia Rd.

Serpentine
Avenida Primavera
Avenida
15th St.

Crest Rd.

Crest
Way
Amphitheatre Dr. Klish Way
Serpentine
660 526 655 0
0 616
11351/2
9051/2
Via Alta Crest Way Hoska Ln.

Hoska Dr.

Crest Rd.

Kalamath Dr. Crest Rd.

ZuniDr.

Primavera Dr. Dr.

San Dieguito Dr.

San DieguitoDr. Racetrack View Dr. Oribia Rd.

LEGEND Description
District Limits
Trench Work Beyond District Limits www.delmar.ca.us/up
ATTACHMENT F 43 October 7, 2024 Item 07
A
2 SAN DIEGUITO DRIVE
2100 GATUN ST
SHEET 1 OF 4
6390 Greenwich Dr 858.554.1500
San Diego, Ca 92122 fuscoe.com

R F U L L C I R C L E T H I N K I N G F
E N
U
G I
S
N
C
E E
O
R I
E
N G
Suite 170

RETAINING WALL PLAN
SAN DIEGUITO DR, NEAR THE PROPERTY AT 2100 GATUN ST
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-4 GENERAL NOTES:

EARTHWORK QUANTITIES:

CONSTRUCTION NOTES:

ATTACHMENT G 44 October 7, 2024 Item 07
SHEET 2 OF 4
6390 Greenwich Dr 858.554.1500
San Diego, Ca 92122 fuscoe.com

R F U L L C I R C L E T H I N K I N G F
E N
U
G I
S
N
C
E E
O
R I
E
N G
Suite 170

RETAINING WALL PLAN
SAN DIEGUITO DR, NEAR THE PROPERTY AT 2100 GATUN ST
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-4

SECTION A

NOT TO SCALE
ATTACHMENT G 45 October 7, 2024 Item 07
SHEET 3 OF 4
6390 Greenwich Dr 858.554.1500
San Diego, Ca 92122 fuscoe.com

R F U L L C I R C L E T H I N K I N G F
E N
U
G I
S
N
C
E E
O
R I
E
N G
Suite 170

RETAINING WALL PLAN
SAN DIEGUITO DR, NEAR THE PROPERTY AT 2100 GATUN ST
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-4 WALL MATERIAL: STONE VENEER - MOUNTAIN LION
AT&T 2'X3' HANDHOLE
SPECTRUM 17"X30" HANDHOLE
ATTACHMENT G 46 October 7, 2024 Item 07
SHEET 4 OF 4
6390 Greenwich Dr 858.554.1500
San Diego, Ca 92122 fuscoe.com

R F U L L C I R C L E T H I N K I N G F
E N
U
G I
S
N
C
E E
O
R I
E
N G
Suite 170

RETAINING WALL PLAN
SAN DIEGUITO DR, NEAR THE PROPERTY AT 2100 GATUN ST
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-4

VICINITY MAP

PROPOSED RETAINING

WALL LOCATION
ATTACHMENT G 47 October 7, 2024 Item 07

SERPENTINE DRIVE
544
F
2 858.554.1500 SHEET 1 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
GENERAL NOTES:

EARTHWORK QUANTITIES:

CONSTRUCTION NOTES:

RETAINING WALL PLAN
544 AVENIDA PRIMAVERA
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-14 ATTACHMENT G 48 October 7, 2024 Item 07
858.554.1500 SHEET 2 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

SECTION F

NOT TO SCALE

RETAINING WALL PLAN
544 AVENIDA PRIMAVERA
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-14 ATTACHMENT G 49 October 7, 2024 Item 07
858.554.1500 SHEET 3 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
WALL MATERIAL: STONE VENEER - MOUNTAIN LION SDG&E TRANSFORMER

RETAINING WALL PLAN
544 AVENIDA PRIMAVERA
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-14 ATTACHMENT G 50 October 7, 2024 Item 07
858.554.1500 SHEET 4 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

VICINITY MAP

PROPOSED RETAINING

WALL LOCATION

RETAINING WALL PLAN
544 AVENIDA PRIMAVERA
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-14 ATTACHMENT G 51 October 7, 2024 Item 07
Sp E
2 ORIBIA ROAD
1238
858.554.1500 SHEET 1 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

RETAINING WALL PLAN
1238 ORIBIA RD
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-12 GENERAL NOTES:

EARTHWORK QUANTITIES:

CONSTRUCTION NOTES:

ATTACHMENT G 52 October 7, 2024 Item 07
858.554.1500 SHEET 2 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

SECTION E

NOT TO SCALE

RETAINING WALL PLAN
1238 ORIBIA RD
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-12 ATTACHMENT G 53 October 7, 2024 Item 07
858.554.1500 SHEET 3 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
WALL MATERIAL: STONE VENEER - MOUNTAIN LION
AT&T 2'X3' HANDHOLE

SDG&E TRANSFORMER

SPECTRUM DRY UTILITY PEDESTAL

RETAINING WALL PLAN
1238 ORIBIA RD
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-12 ATTACHMENT G 54 October 7, 2024 Item 07
858.554.1500 SHEET 4 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

VICINITY MAP
(STREET VIEW UNAVAILABLE)

RETAINING WALL PLAN
1238 ORIBIA RD
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-12 ATTACHMENT G 55 October 7, 2024 Item 07
Sp C
2 SAN DIEGUITO DRIVE
1555
858.554.1500 SHEET 1 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

RETAINING WALL PLAN
1555 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-6 GENERAL NOTES:

EARTHWORK QUANTITIES:

CONSTRUCTION NOTES:

ATTACHMENT G 56 October 7, 2024 Item 07
858.554.1500 SHEET 2 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

SECTION C

NOT TO SCALE

RETAINING WALL PLAN
1555 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-6 ATTACHMENT G 57 October 7, 2024 Item 07
858.554.1500 SHEET 3 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
WALL MATERIAL: STONE VENEER - MOUNTAIN LION AT&T 2'X'3' HANDHOLE

SPECTRUM PEDESTAL

RETAINING WALL PLAN
1555 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-6 ATTACHMENT G 58 October 7, 2024 Item 07
858.554.1500 SHEET 4 OF 4
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com

VICINITY MAP

PROPOSED RETAINING

WALL LOCATION

RETAINING WALL PLAN
1555 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-6 ATTACHMENT G 59 October 7, 2024 Item 07
Sp B
2 SAN DIEGUITO DRIVE
1561
SHEET 1 OF 4

RETAINING WALL PLAN
1561 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN, SEE SHEET C-6 GENERAL NOTES:

EARTHWORK QUANTITIES:

CONSTRUCTION NOTES:
858.554.1500
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
ATTACHMENT G 60 October 7, 2024 Item 07
SHEET 2 OF 4

RETAINING WALL PLAN
1561 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-6

SECTION B

NOT TO SCALE
858.554.1500
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
ATTACHMENT G 61 October 7, 2024 Item 07
SHEET 3 OF 4

RETAINING WALL PLAN
1561 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-6 WALL MATERIAL: STONE VENEER - MOUNTAIN LION
AT&T 2'X3' HANDHOLE

SDG&E TRANSFORMER

SPECTRUM DRY UTILITY PEDESTAL
858.554.1500
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
ATTACHMENT G 62 October 7, 2024 Item 07
SHEET 4 OF 4

RETAINING WALL PLAN
1561 SAN DIEGUITO DR
DISTRICT X1A CONVERSION IMPROVEMENT PLAN , SEE SHEET C-6

VICINITY MAP

PROPOSED RETAINING

WALL LOCATION
858.554.1500
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122
fuscoe.com
ATTACHMENT G 63 October 7, 2024 Item 07
ATTACHMENT H 64 October 7, 2024 Item 07
ATTACHMENT H 65 October 7, 2024 Item 07
ATTACHMENT H 66 October 7, 2024 Item 07
ATTACHMENT H 67 October 7, 2024 Item 07
ATTACHMENT H 68 October 7, 2024 Item 07
ATTACHMENT H 69 October 7, 2024 Item 07
ATTACHMENT H 70 October 7, 2024 Item 07
ATTACHMENT H 71 October 7, 2024 Item 07
ATTACHMENT H 72 October 7, 2024 Item 07
ATTACHMENT H 73 October 7, 2024 Item 07
ATTACHMENT H 74 October 7, 2024 Item 07
ATTACHMENT H 75 October 7, 2024 Item 07
ATTACHMENT H 76 October 7, 2024 Item 07

SAN DIEGUITO DR

GATUN ST

APO ST Z

SAN DIEGUITO DR
T O SP

SERPENTINE DR
RACE

FOREST WAY

TRACK VIEW D R

ZUNI DR

AVENIDA PRIMAVERA

SAN DIEGUITO DR
15TH ST

DR INUZ
ORIBI

CREST RD
A RD
15TH ST
NA RD
TP9
#
TP1
Project Features Survey Area
SDG&E - Poles to Stay Municipal Boundary
Telecom - Poles to Stay Vegetation
SDG&E - Poles to be Removed Southern Willow Scrub
Telecom - Poles to be Removed Estuarine
Anchor to be Removed Salt Marsh
Trenching and Ground Disturbance Torrey Pine Forest
Pedestrian Work Area and Access Southern Maritime Chaparral Staging Area Diegan Coastal Sage Scrub
Diegan Coastal Sage Scrub - Rhus Dominated
Diegan Coastal Sage Scrub - Disturbed
Diegan Coastal Sage Scrub - Revegetated
Disturbed Land
Urban/Developed Land
Sensitive Species
# Osprey (Pandion haliaetus)
Sea Dahlia (Leptosyne maritima)
Spiny Rush (Juncus acutus)
Wart-stemmed Ceanothus
(Ceanothus verrucosus)
Sensitive Trees to be Protected
Monterey Cypress
(Hesperocyparis macrocarpa)
Torrey Pine (Pinus torreyana)
TP2

SAN DIEGUITO
LAGOON
TP3
TP4
TP5
P62475

DEL MAR SAN DIEGO
P62476
P62477
TP
P62328
P61922
P62114 P61921
P61551
P61550
Detail Area
Trenchi
ground di
ng and
sturbance to
<0.001 acre of Rhusdominated Diegan
coastal sage scrub
P60601
ATT Pole
P62245 P62479
P60602
P62480
P60603 J P62481
P932882
Pole

AVENIDA PRIMAVERA
P0605S
P62082
P60604 P62133
P62206
P62482
P60297 Pole
P60297
P60294
P60299
P60653
P60298 P60300
P199801S P62518
P62483
P61083
P62518
P199797S
P62469 P62470
P61395
P62484
P61394
P198780 Pole
MATCH TO FIGURE 8a
P62453
P62452
P62344 P61736
Existing Biological Resources and Proposed Project Features CREST CANYON UNDERGROUNDING DISTRICT X1A PROJECT
0 100 200 ´ Feet Figure 5a
ATTACHMENT I 77 October 7, 2024 Item 07

ORIBIA RD

VIA ALTA

R DT AA LLM IU

RIMINI RD

TH DR KALAMA

CREST RD

KLISH WAY

AMPHITHEATRE DR

HOSKA DR

KLISH WAY

RUE SAINT RAPHAEL

PLACE MONACO

RUE SAN REMO

RUE MONACO

RUE D'AZUR

RUE SAINT TROPEZ
MATCH TO FIGURE 8a P62453
P62452
P62344
P61736
Pole
P62454
P61735
P62457
P62458
P62459
P161750
P62341J
P62340J
P62837
P199229S

ORIBIA RD
P60707
P62790
P62500
P62004 P60706
P62789
P62104 P60659 CREST CANYON

OPEN SPACE
P61920
P62788
P62466 Pedestrian access will
follow existing hiking trail
P60657
# P62787
#P199281
Detail Area
Trenchi
ground di
ng and
sturbance to

0.002 acre of Diegan
coastal sage scrub P60665
11TH ST
P61857
P62442
P61858
Survey Area
Municipal Boundary
Project Features
SDG&E - Poles to Stay
Telecom - Poles to Stay
SDG&E - Poles to be Removed
Anchor to be Removed
Trenching and Ground Disturbance
Pedestrian Work Area and Access
Staging Area
Vegetation
Torrey Pine Forest
Southern Maritime Chaparral
Diegan Coastal Sage Scrub
Diegan Coastal Sage Scrub - Rhus Dominated
Diegan Coastal Sage Scrub - Disturbed
Diegan Coastal Sage Scrub - Revegetated
Disturbed Land
Urban/Developed Land
Sensitive Species
# Woodrat Midden (Neotoma) sp.

Eastwood's Manzanita
(Arctostaphylos glandulosa)
Torrey Pine (Pinus torreyana)
Wart-stemmed Ceanothus
(Ceanothus verrucosus)
Sensitive Trees to be Protected
Monterey Cypress
(Hesperocyparis macrocarpa)
Torrey Pine (Pinus torreyana)
Existing Biological Resources and Proposed Project Features CREST CANYON UNDERGROUNDING DISTRICT X1A PROJECT
0 100 200 ´ Feet Figure 5b

DEL MAR SAN DIEGO
P62463
P62036
P61876
P63530
P61491
P62107
P62108
P208064 ATT Pole

PLACE SAINT TROPEZ
ATTACHMENT I 78 October 7, 2024 Item 07
City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DECLARATION OF RESPONSIBLE CHARGE DISTRICT X1A CREST CANYON CONVERSION IMPROVEMENT PLAN CITY OF DEL MAR KEY MAP 5 VICINITY MAP WORK TO BE DONE GENERAL NOTES ENGINEER'S NOTICE TO CONTRACTOR SPECIAL NOTES SOURCE OF TOPOGRAPHY LEGEND BASIS OF BEARINGS BENCHMARK STATEMENT SHEET C-3 SHEET C-2 SHEET C-4 SHEET C-5SHEET C-6 SHEET C-7 SHEET C-8 SHEET C-9 SHEET C-10 SHEET C-11SHEET C-12 TITLE SHEET C-1 PROJECT SITE SHEET C-13SHEET C-15 SHEET C-16 SHEET C-17 SHEET C-18 SHEET C-19 SHEET C-20 SHEET C-21 SHEET C-24 SHEET C-25 SHEET C-26 SHEET C-22SHEET C-23 E-24-XXX-001 O O PROPOSED IMPROVEMENTS IMPROVEMENT EXISTING IMPROVEMENTS SYMBOL Sp ABBREVIATIONS

ATTACHMENT J
79 October 7, 2024 Item 07
AT&T R/WR/W GRAND AVE. SAN DIEGUITO DR DRIVEWAY PRIVATE 1995 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SAN DIEGUITO DR IMPROVEMENT PLAN C-2 STA 7+53 MATCHLINE
SEE SHEET C-3 PROFILE - JOINT TRENCH CONSTRUCTION NOTES: DEMOLITION NOTES: PLAN VIEW: SAN DIEGUITO DRIVE E-24-XXX-02

ATTACHMENT J
80 October 7, 2024 Item 07
AT&T R/WR/W SAN DIEGUITO DR 1995 AT&T PROFILE - JOINT TRENCH STA 13+65 MATCHLINE

SEE SHEET

SEE SHEET
C-4
C-2
STA 7+53 MATCHLINE City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CONSTRUCTION NOTES: DEMOLITION NOTES: C-3 SAN DIEGUITO DR IMPROVEMENT PLAN PLAN VIEW: SAN DIEGUITO DRIVE E-24-XXX-03 DETAIL: SAN DIEGUITO DRIVE GRADING

ATTACHMENT J
81 October 7, 2024 Item 07
R/WR/W SAN DIEGUITO DR 2100 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 STA 19+00 MATCHLINE

SEE SHEET

SEE SHEET
C-5
C-3
STA 13+65 MATCHLINE CONSTRUCTION NOTES: PROFILE - JOINT TRENCH C-4 SAN DIEGUITO DR IMPROVEMENT PLAN DEMOLITION NOTES: PLAN VIEW: SAN DIEGUITO DRIVE E-24-XXX-04

ATTACHMENT J
82 October 7, 2024 Item 07
Sp Sp AT&T Sp AT&T R/W R/W PRIVATE ROAD R/W R/W R/W 1569 1604 RACETRACK VIEW DR SAN DIEGUITO DR SAN DIEGUITO DR AT&T SEE SHEET C-6 SEE SHEET C-4
STA 19+00 MATCHLINE PROFILE - JOINT TRENCH City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CONSTRUCTION NOTES: C-5 SAN DIEGUITO DR IMPROVEMENT PLAN DEMOLITION NOTES: PLAN VIEW: SAN DIEGUITO DRIVE E-24-XXX-05 DETAILS: SAN DIEGUITO DRIVE GRADING

ATTACHMENT J
83 October 7, 2024 Item 07
Sp Sp
Sp
Sp 1515 1535 1505 1525 1557 1561 1555 SAN DIEGUITO DR City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SAN DIEGUITO DR IMPROVEMENT PLAN C-6 CONSTRUCTION NOTES: CONSTRUCTION NOTES CONT'D: PROFILE - JOINT TRENCH STA 6+64 MATCHLINE
SEE SHEET C-7
SEE SHEET C-5 DEMOLITION NOTES: PLAN VIEW: SAN DIEGUITO DRIVE E-24-XXX-006 SEE SHEET C-5

ATTACHMENT J
84 October 7, 2024 Item 07
Sp
Sp 1441 1439 1435 1445SAN DIEGUITO DR 15151505 1435 SAN DIEGUITO DR IMPROVEMENT PLAN C-7 CONSTRUCTION NOTES: PROFILE - JOINT TRENCH SEE SHEET C-8
SEE SHEET C-6
STA 6+64 MATCHLINE SEE SHEET C-8 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES: PLAN VIEW: SAN DIEGUITO DRIVE E-24-XXX-007

ATTACHMENT J
85 October 7, 2024 Item 07
Sp Sp Sp R/W R/W 1435 1440 1445 1450 1490 1522 R/W ORIBIA RD R/W ORIBIA RD IMPROVEMENT PLAN C-8 CONSTRUCTION NOTES:

STA 7+43 MATCHLINE
SEE SHEET C-9 PROFILE - JOINT TRENCH SEE SHEET C-7 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES: PLAN VIEW: ORIBIA ROAD E-24-XXX-008

ATTACHMENT J
86 October 7, 2024 Item 07
Sp 1174 1352 1260 R/W ORIBIA RD ORIBIA RD ORIBIA RD PL
PL PL ORIBIA RD IMPROVEMENT PLAN C-9 CONSTRUCTION NOTES: STA 12+71 MATCHLINE SEE SHEET C-10 SEE SHEET C-8
STA 7+43 MATCHLINE
SEE SHEET C-11 PROFILE - JOINT TRENCH City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES: PLAN VIEW: ORIBIA ROAD E-24-XXX-009 GENERAL NOTES: 1. ORIBIA ROAD IS A PRIVATE ROAD AND NECESSARY EASEMENTS FOR THE JOIN TRENCH FACILITIES WILL BE OBTAINED BY THE CITY.

ATTACHMENT J
87 October 7, 2024 Item 07
Sp Sp Spectrum 1180 1402 1340 1200 1426 ORIBIA RD PL PL City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 ORIBIA RD IMPROVEMENT PLAN C-10 CONSTRUCTION NOTES:

STA 12+71 MATCHLINE
SEE SHEET C-9 PROFILE - JOINT TRENCH DEMOLITION NOTES: PLAN VIEW: ORIBIA ROAD E-24-XXX-010 GENERAL NOTES: 1. ORIBIA ROAD IS A PRIVATE ROAD AND NECESSARY EASEMENTS FOR THE JOIN TRENCH FACILITIES WILL BE OBTAINED BY THE CITY.

ATTACHMENT J
88 October 7, 2024 Item 07
1174 1174 ORIBIA RD ORIBIA RD ORIBIA RD PL PL PL PL City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 ORIBIA RD IMPROVEMENT PLAN C-11 CONSTRUCTION NOTES:

SEE SHEET C-9
STA 23+19 MATCHLINE
SEE SHEET C-12 PROFILE - JOINT TRENCH DEMOLITION NOTES: PLAN VIEW: ORIBIA ROAD E-24-XXX-011 SEE SHEET C-9 GENERAL NOTES: 1. ORIBIA ROAD IS A PRIVATE ROAD AND NECESSARY EASEMENTS FOR THE JOIN TRENCH FACILITIES WILL BE OBTAINED BY THE CITY.

ATTACHMENT J
89 October 7, 2024 Item 07
Sp Sp 1234 1236 1230 1238 ORIBIA RD PL PL ORIBIA RD IMPROVEMENT PLAN C-12 CONSTRUCTION NOTES: SEE SHEET C-11 STA 23+19 MATCHLINE PROFILE - JOINT TRENCH PLAN VIEW: ORIBIA ROADCity of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES: E-24-XXX-012 GENERAL NOTES: 1. ORIBIA ROAD IS A PRIVATE ROAD AND NECESSARY EASEMENTS FOR THE JOIN TRENCH FACILITIES WILL BE OBTAINED BY THE CITY.

ATTACHMENT J
90 October 7, 2024 Item 07
AT&T
Sp Sp Sp AT&T Sp
AT&T Sp AT&T AT&T Sp R/W R/W R/W R/W660 521 526 550 ZUNI DR AVENIDA PRIMAVERA 641 AVENIDA PRIMAVERA AVENIDA PRIMAVERA IMPROVEMENT PLAN C-13 SEE SHEET C-15 SEE SHEET C-15 CONSTRUCTION NOTES: City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES: PLAN VIEW: AVENIDA PRIMAVERA & ZUNI DR PROFILE - AVENIDA PRIMAVERA JOINT TRENCH E-24-XXX-013 PROFILE - ZUNI DR JOINT TRENCH SEE
SHEET
C-14

ATTACHMENT J
91 October 7, 2024 Item 07
Sp AT&T AT&T Sp AT&T Sp AT&T Sp R/WR/W617 625 624 608 SERPENTINE DR AVENIDA PRIMAVERA SERPENTINE DR IMPROVEMENT PLAN C-14 SEE SHEET C-15 CONSTRUCTION NOTES: City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SEE
SHEET
C-13 DEMOLITION NOTES: PLAN VIEW: SERPENTINE DR PROFILE - JOINT TRENCH E-24-XXX-014 SEE SHEET C-15

ATTACHMENT J
92 October 7, 2024 Item 07
AT&T Sp Sp AT&T AT&T Sp Sp AT&T AT&T
AT&T Sp Sp R/W R/W 545 550 567 540 535 SERPENTINE DR 616 AVENIDA PRIMAVERA City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SERPENTINE DR IMPROVEMENT PLAN C-15 MATCHLINE STA 6+67
SEE SHEET C-16 SEE SHEET C-14 SEE SHEET C-13 CONSTRUCTION NOTES: DEMOLITION NOTES: PLAN VIEW: SERPENTINE DR E-24-XXX-015 PROFILE - AVENIDA PRIMAVERA JOINT TRENCH PROFILE - SERPENTINE DR JOINT TRENCH

ATTACHMENT J
93 October 7, 2024 Item 07
Sp Sp Sp AT&T AT&T AT&T R/W R/WR/W 1468 1507 655 625 652 AVENIDA PRIMAVERA R/W R/W CREST RD1465 AVENIDA PRIMAVERA IMPROVEMENT PLAN C-16 SEE SHEET C-17 SEE SHEET C-15
MATCHLINE STA 6+67 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES:

SEE SHEET C-17 PLAN VIEW: AVENIDA PRIMAVERA E-24-XXX-016 PROFILE - JOINT TRENCH CONSTRUCTION NOTES: CONSTRUCTION NOTES CONT'D:

ATTACHMENT J
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Sp AT&T AT&T Sp AT&T Sp Sp Sp AT&T AT&T AT&T
R/W
R/W R/W R/W 1492 645 627 615 628 650 1465 15TH ST CREST RD 15TH ST IMPROVEMENT PLAN C-17 MATCHLINE STA 6+70 SEE SHEET C-18 SEE SHEET C-16 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 DEMOLITION NOTES: PLAN VIEW: 15TH STREET E-24-XXX-017 PROFILE - JOINT TRENCHCONSTRUCTION NOTES: CONSTRUCTION NOTES CONT'D:

ATTACHMENT J
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AT&T Sp AT&T AT&T Sp SP AT&T AT&T R/W R/W 1330 1335 1345 1346 1406 1373 1429 1449 1370 CREST RD 1440 1420 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CREST RD IMPROVEMENT PLAN C-18 MATCHLINE STA 12+76
SEE SHEET C-19
SEE SHEET C-17
MATCHLINE STA 6+70 CONSTRUCTION NOTES: CONSTRUCTION NOTES CONT'D: DEMOLITION NOTES: PLAN VIEW: CREST RD E-24-XXX-018 PROFILE - JOINT TRENCH

ATTACHMENT J
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AT&T AT&T Sp Sp Sp Sp AT&T AT&T AT&T AT&T Sp Sp R/WR/W 1223 1209 1210 1250 1305 1316 1230 1233 VIA ALTA CREST RD 1335 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CREST RD IMPROVEMENT PLAN C-19 MATCHLINE STA 19+31
SEE SHEET C-20
SEE SHEET C-18
MATCHLINE STA 12+76 CONSTRUCTION NOTES: DEMOLITION NOTES: PLAN VIEW: CREST RD E-24-XXX-019 PROFILE - JOINT TRENCH

ATTACHMENT J
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Sp AT&T AT&T AT&T AT&T AT&T Sp Sp AT&T Sp Sp R/WR/W 1042 1110 1122 1130 785 1145 1203 1135 CREST RD KLISH WAY KALAMATH DR 1036 R/W
R/W
R/W
R/W AT&T Sp City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CREST RD IMPROVEMENT PLAN C-20 MATCHLINE STA 24+94
SEE SHEET C-21
SEE SHEET C-19
MATCHLINE STA 19+31 CONSTRUCTION NOTES: DEMOLITION NOTES: E-24-XXX-020 PROFILE - JOINT TRENCH PLAN VIEW: CREST RD CONSTRUCTION NOTES CONT'D: DETAIL: CREST RD GRADING AREA

ATTACHMENT J
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Sp Sp Sp AT&T AT&T AT&T Sp AT&T R/W R/W 999 964 980 1010 1022 1016 1036 CREST RD AMPHITHEATRE DR CREST RD IMPROVEMENT PLAN C-21 SEE SHEET C-20
MATCHLINE STA 24+94 CONSTRUCTION NOTES: City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 MATCHLINE STA 29+73
SEE SHEET C-22 DEMOLITION NOTES: E-24-XXX-021 PROFILE - JOINT TRENCH PLAN VIEW: CREST RD

ATTACHMENT J
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Sp AT&T 964 CREST RD 945 CREST RD IMPROVEMENT PLAN C-22 SEE SHEET C-21
MATCHLINE STA 29+73 CONSTRUCTION NOTES: City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SEE SHEET C-23 MATCHLINE STA 32+10 DEMOLITION NOTES: E-24-XXX-022 PLAN VIEW: CREST RD PROFILE - JOINT TRENCH

ATTACHMENT J
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Sp Sp AT&T R/W 912 CREST RD City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CREST RD IMPROVEMENT PLAN C-23 SEE SHEET C-22 MATCHLINE STA 32+10 CONSTRUCTION NOTES:

MATCHLINE STA 35+60
SEE SHEET C-25 DEMOLITION NOTES: E-24-XXX-023 PROFILE - JOINT TRENCH PLAN VIEW: CREST RD SEE SHEET C-24

ATTACHMENT J
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Sp Sp Sp AT&T AT&T AT&T Sp AT&T R/WR/W R/W 766 754 767 786 CREST RD HOSKA DR 755 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 CONSTRUCTION NOTES: HOSKA DR IMPROVEMENT PLAN C-24 SEE SHEET C-23 SEE SHEET C-25 DEMOLITION NOTES: E-24-XXX-024 PROFILE - JOINT TRENCH PLAN VIEW: CREST RD

ATTACHMENT J
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AT&T 787 860 CREST RD CONSTRUCTION NOTES: CREST RD IMPROVEMENT PLAN C-25 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SEE SHEET C-23
MATCHLINE STA 35+60 MATCHLINE STA 39+76 SEE SHEET C-26 DEMOLITION NOTES: E-24-XXX-025 PROFILE - JOINT TRENCH PLAN VIEW: CREST RD

ATTACHMENT J
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Sp Sp AT&T AT&T Sp AT&T Sp SpAT&T AT&T 834 757 740 728 700 725 715 743 733 801 CONSTRUCTION NOTES: CREST RD IMPROVEMENT PLAN C-26 City of Del Mar 1050 Camino del Mar, Del Mar, CA 92014 T 858.755-9313 F 858.755-2794 www.delmar.ca.us O O 858.554.1500 fuscoe.com 6390 Greenwich Dr, Suite 170 San Diego, Ca 92122 SEE SHEET C-25
MATCHLINE STA 39+76 DEMOLITION NOTES: E-24-XXX-026 PROFILE - JOINT TRENCH PLAN VIEW: CREST RD

ATTACHMENT J
104 October 7, 2024 Item 07
A
2 SAN DIEGUITO DRIVE
2100 GATUN ST
Sp B
2 SAN DIEGUITO DRIVE
1561 Sp C
2 SAN DIEGUITO DRIVE
1555
Sp E
2 ORIBIA ROAD
1238
PL

SERPENTINE DRIVE
544
F
2 City of Del Mar
1050 Camino del Mar, Del Mar, CA 92014
T 858.755-9313 F 858.755-2794
www.delmar.ca.us
O O
858.554.1500 fuscoe.com
6390 Greenwich Dr, Suite 170
San Diego, Ca 92122 RETAINING WALL PLAN
C-27
E-24-XXX-027
CONSTRUCTION NOTES:

A
C-4
RETAINING WALL @ SAN DIEGUITO DR NEAR
2100 GATUN ST
DEMOLITION NOTES:

B
C-6
RETAINING WALL @ 1561 SAN DIEGUITO DR C
C-6
RETAINING WALL @ 1555 SAN DIEGUITO DR
D
C-12
RETAINING WALL @ 1238 ORIBIA RD E
C-14
RETAINING WALL @ 544 AVENIDA PRIMAVERA
ATTACHMENT J 105 October 7, 2024 Item 07
1810 SAN DIEGUITO DRIVE EXEMPTION
ATTACHMENT K 106 October 7, 2024 Item 07
HELIX Environmental Planning, Inc.
7578 El Cajon Boulevard
La Mesa, CA 91942
619.462.1515 tel
619.462.0552 fax
www.helixepi.com
July 8, 2024 01197.00002.004
Ms. Ashley Jones
City of Del Mar
1050 Camino del Mar
Del Mar, CA 92014
c/o Jennifer Gavin
Subject: Cultural Resource Assessment for the Crest Canyon Undergrounding District X1A Project Dear Ms. Jones:

The City of Del Mar (City) contracted HELIX Environmental Planning, Inc. (HELIX) to conduct a cultural resources study for the Crest Canyon Undergrounding District (District) X1A Project (project), in Del Mar, San Diego County, California. HELIX conducted a record search, a Sacred Lands File search, and a site visit of the project area. This letter report details the methods and results of the cultural resources study. In summary, no significant historical resources were identified within the project area, and no adverse impacts to cultural resources are anticipated from the project's development; thus, no mitigation is required. However, cultural resources monitoring is recommended as a project design feature for trenching and other ground-disturbing efforts along the northern edge of the project area (along San Dieguito Drive) due to this area being situated adjacent to the San Dieguito Lagoon where sedimentary alluvium and slopewash deposits of Holocene age may contain buried cultural material.

PROJECT LOCATION AND DESCRIPTION
The project is located west of Interstate 5 (I-5), south of the San Dieguito Lagoon, and north of the Los Peñasquitos Lagoon (Figure 1, Regional Location). The project area is within Sections 11, 13, and 14, in Township 14 South, Range 4 West, on the U.S. Geological Survey (USGS) 7.5-minute Poway topographic quadrangle (Figure 2, USGS Topography). The undergrounding project is located within residential roads south of San Dieguito Drive, east of Camino Del Mar, and north of La Amatista Road (Figure 3, Aerial Photograph).

This dry utility undergrounding conversion project is located primarily along Crest Road from the border of the City of San Diego at the south and continues up through Crest Road to incorporate a portion of Avenida Primavera and Zuni Drive and ending at a dead-end portion of Serpentine Drive. The undergrounding also crosses east from Crest Road to Oribia Road and north to San Dieguito Drive. From San Dieguito Drive the undergrounding continues west adjacent to the San Dieguito Lagoon terminating at the Grand Avenue Overlook. The project extends to a portion of Hoska Drive to Hoska Lane ATTACHMENT L 107 October 7, 2024 Item 07
Letter to Ms. Jones Page 2 of 7
July 8, 2024
intersection, on Amphitheater Drive to the driveway at 980 Crest Road, on Kalamath Drive to the first pole adjacent 1210 Crest Road, to pole at 1329 Via Alta, down to 615 15th Street, to pole at 521 Avenida Primavera, to pole at 660 Zuni Dr, and down Serpentine Drive to Forest Way intersection.

The project will consist of the following components:
1) publicly funded trenching for new conduit installation, construction of new utility equipment pads, construction of new handholes, and construction of retaining walls associated with the proposed undergrounding electrical and telecom within approximately 12,300 lineal feet of existing public right-of-way and private streets in the area;
2) private residence homeowner funded trenching and new conduit from meter stations/boxes for 85 houses out to the street right-of-way at locations where overhead services currently exist to the homes;
3) public right-of-way and private property/homeowner repairs to the surface, including roadway paving and replacement of vegetation disturbed during construction of the trench, pads, handholes, and retaining walls;
4) utility agency installed equipment and wiring for the proposed electrical and telecom services; and 5) utility agency removal of all overhead wires and poles currently located within the District.

The majority of the work will occur in developed areas, within existing streets and driveways with some exceptions for equipment and walls adjacent to the paved areas, homeowner trenching through yards to existing meter locations, and overhead wire and pole removals for existing lines that cross through open space canyon and lagoon areas.

All excavations for the trenches, pads, and walls are expected to be completed with rubber-tired backhoes, loaders, and trucks. Hand digging with an arborist on standby is planned for trenching within the critical root zone of protected tree species where work near the tree is unavoidable. Breaker attachments on the backhoes may be necessary to use for excavation in areas of hard sandstone.

Ground disturbing activities (e.g., trenching, excavating, hand digging, etc.) along San Dieguito Drive, adjacent to the lagoon, will implement an archaeological and Native American monitoring program as part of the project’s construction operating procedures (i.e., contractor commitments). Additionally, pole removals in sensitive canyon areas are to be completed by hand; crews will walk in to hand cut pole at ground level, fell the pole, cut to manageable pieces, and haul out with small rubber tired tractortrailer or wheelbarrow. Alternately, San Diego Gas & Electric (SDG&E) may choose to hand cut pole at ground level and helicopter the pole out of the canyon area. Pole removals in sensitive lagoon areas are to be completed via hand cutting pole at ground level and removal via truck at locations where boom can reach while parked on the existing paved road or felling and cut up for removal with a wheelbarrow for the one pole further off the road.

ATTACHMENT L 108 October 7, 2024 Item 07
Letter to Ms. Jones Page 3 of 7
July 8, 2024

METHODS
HELIX utilized a recent records search completed for the City that contained the area of the proposed project. The records search included the identification of previously recorded cultural resources within a half mile of the project area. The Native American Heritage Commission (NAHC) was contacted for a Sacred Lands File search on June 12, 2023. The NAHC responded on June 29, 2023, indicating that the Sacred Lands File search results were negative. No additional outreach to the Native American community was conducted as part of this study. The correspondence from the NAHC is included as an attachment to this letter report.

Historical maps and aerial photographs were also reviewed to assess the potential for historical structural resources and historical archaeological resources, including the 1904 and 1930 Southern California (1:250,000) USGS topographic maps; the 1953, 1967, 1975, and 1994 Del Mar 7.5-minute USGS topographic maps; and historic aerials from between 1932 and 1990 (NETR Online 2023; UCSB Digital Library 2023).

A site visit was conducted on June 16, 2023, by HELIX archaeologists James Turner and Jessica Garcia.

The project area was walked and checked for cultural resources and to ascertain whether the roads within the project area had been cut into the hillside. The entirety of the project alignment is located within existing residential roads or private driveways.

RESULTS
Archival Research
The review of the records search data identified 13 previously recorded cultural resources within one half-mile of the project area, three of which are recorded within the overall project boundaries (Table 1, Previously Recorded Resources within One Half-Mile of the Project Area). In general, the resources within one-half mile consist of five prehistoric sites, four historic structures, two historic buildings, and one historic isolate. The two resources recorded within the project boundaries (P-37-026493. P-37-036412, and P-37-036413) are discussed below.

Table 1

PREVIOUSLY RECORDED RESOURCES WITHIN ONE HALF-MILE OF THE PROJECT AREA Resource
Number
(P-37-)
Resource
Number
(CA-SDI-)
Age and Resources
Present Description Recorder, Date
000192 192 Prehistoric Site Unknown Treganza, n.d.; Foglia and Spelts, 2016
000193 193 Prehistoric Site Unknown Treganza, n.d.
008591 8591 Prehistoric Site Lithic scatter Apple and Apple, 1980 024489 16241 Prehistoric Site Artifact scatter Mealey et al., 2002; Mealey and McFarland, 2005
024739 16385H Historic Structure Segments of the
Atchison, Topeka, and
Santa Fe Railroad
Ballester and Woodard, 2002;
Unknown, n.d.; Stiefel and
Gunderman, 2009; McLean,
2010; Schultz and Harper,
ATTACHMENT L 109 October 7, 2024 Item 07
Letter to Ms. Jones Page 4 of 7
July 8, 2024
Resource
Number
(P-37-)
Resource
Number
(CA-SDI-)
Age and Resources
Present Description Recorder, Date
2011; Castells, 2013; Castells
and Krintz, 2013; Castells and
Quach, 2014; Castells, 2015;
Daly, 2015; Tift and Lennen,
2016; Courtney, 2017; Foglia,
2017
026493* 17389 Prehistoric Site Campsite Rogers, n.d.
034956 --- Historic Structure San Dieguito River
Railroad Bridge
ASM Affiliates, Inc., 2009
036412* --- Historic Building A raised ranch-style
single-family residence
built in 1965
Mello, 2016
036413* --- Historic Building An eclectic ranch style
single family residence
built in 1967
Mello, 2016
036415 --- Historic Structure Transmission line Foglia and Spelts, 2016 036421 --- Historic Isolate Insulator fragment Foglia and Spelts, 2016 036422 --- Historic Building Commercial building
built in 1955
Foglia et al., 2016
036423 --- Historic Building Old Grand Avenue
Bridge
Foglia and Spelts, 2016
* Within Project Area
P-37-026493 (CA-SDI-17389)
P-37-026493 (CA-SDI-17389) was recorded by Malcom Rodgers in the 1920s as a campsite; during the initial recordation, he noted that the site had been destroyed by wind and rain erosion such that nothing remained save for fire-cracked rock (Rogers n.d.). No other updates for the site have been filed – it is presumed that the site was fully destroyed during the development of the residences now located in the recorded location of the resource.

P-37-036412
Resource P-37-036412 is a raised ranch-style single-family residence (Mello 2016a). The building has a north-facing orientation and is two stories with a C-shaped plan. At the time of recordation, it was determined that the residence did not possess the requisite significance to be eligible for listing in the National Register of Historic Places (NRHP) or California Register of Historical Resources (CRHR).

P-37-036413
Resource P-37-036413 is a one-and-a-half-story, Eclectic style ranch-style, single-family residence built in 1967 (Mello, 2016b). At the time of recordation, it was determined that the residence did not possess the requisite significance to be eligible for listing in the NRHP or CRHR.

ATTACHMENT L 110 October 7, 2024 Item 07
Letter to Ms. Jones Page 5 of 7
July 8, 2024
Other Archival Research
No roads or structures are recorded in the area on the 1905 Southern California topographic map, though the San Dieguito Lagoon is recorded to the north, and “Delmar” is recorded to the southwest.

The 1953 Del Mar topographic map shows several roads and structures within the project area – this map depicts the Del Mar Airport to the northeast and the Del Mar Racetrack to the north. The 1967 Del Mar map shows the area containing the project area as being relatively unchanged – this map also depicts I-5 in its present alignment to the west. The project area is relatively unchanged on the 1975 and 1994 Del Mar topographic maps.

The 1932 aerial photograph shows the area containing the project consisted primarily of dirt roads and sparsely spaced residences (UCSB Digital Library 2023). The area remains relatively unchanged in the 1941 photograph; the 1953 and 1964 aerial photographs show more structures within the project area (NETR Online 2021; UCSB Digital Library 2023). The aerial photographs from 1967, 1978, 1984, and 1990 show the area relatively unchanged from the 1964 aerial (NETR Online 2023).

Geologically, the majority of the project area is located within coastal bluffs that are underlain with very old paralic deposits dating to the middle to early Pleistocene and Torrey Sandstone, an order formation dating to the middle Eocene (Kennedy and Tan 2008). Along the far northern edge of the project area, closest to the lagoon, sedimentary alluvium, slopewash deposits of Holocene age, and Bay Point Formation of middle Pleistocene age are present (Kennedy 1975).

The area within and surrounding the project area contains soils from the loamy alluvial land-Huerhuero complex, terrace escarpments, the Carlsbad-Urban land complex, the Corralitos series, and the Carlsbad series. In general, these soils consist of loamy sands (Bowman 1973).

Site Visit
The roads located within the northern portion of the project area, specifically - San Dieguito Drive, Racetrack View Drive, and Oribia Road, appear to have been cut into the bottom slopes of the bluffs.

This was especially visible within Oribia Road – this road would likely have been approximately three to four feet higher before the cutting and grading. Each of these roads also contained new patches or stripes of asphalt indicative of trenching for the installation of utility lines, with SDG&E vaults being observed along the asphalt striping.

Crest Road and Crest Way, in the southern portion of the project area, also appeared to have been cut into the hillside in most areas. A few areas, such as the intersection of Crest Road and 15th Street, appeared to have been graded at some point, likely during the construction of the circular landscaped feature in the center of the intersection. Much of Crest Road and Crest Way appeared to have been freshly repaved, and both sides of the road have been developed with a residential neighborhood.

Representative site photos of the project area and conditions are included as an attachment to this letter.

ATTACHMENT L 111 October 7, 2024 Item 07
Letter to Ms. Jones Page 6 of 7
July 8, 2024

CONCLUSION AND RECOMMENDATIONS
The review of records search information indicated that no significant cultural resources have been previously recorded within the project area – the three previously recorded resources documented within the overall project area consist of one archaeological site initially recorded in the early 1900s that has since been destroyed and two non-significant built environment resources. Based on aerial photographs of the area, the project area has been developed since the 1960s; this development was evident during the site visit, which did not result in the identification of any additional cultural resources. Based on these factors, the implementation of the project is not expected to have an adverse impact on any known cultural resources.

Due to the geological setting of the project area and the amount of development that has occurred since the 1960s, it is unlikely that buried archaeological resources are present in the majority of the project area. The only exception would be the potential for buried archaeological resources to be present within Holocene-age deposits adjacent to the lagoon, along the northern edge of the project area. Given the project would implement an archaeological and Native American monitoring program as a projectspecific commitment for ground-disturbing activities that occur within this area of the project alignment (i.e., along San Dieguito Drive where adjacent to the lagoon), no further studies or monitoring programs are recommended for the portions of the project outside of this area. In conclusion, no cultural resources are expected to be impacted by the project; thus, no mitigation is required or recommended.

If you have any questions regarding this cultural resource constraints assessment, please contact Stacie Wilson at (619) 462-1515 or [email protected].

Sincerely,
James Turner, RPA Stacie Wilson, RPA
Staff Archaeologist Principal Investigator
Enclosures:

Figure 1: Regional Location
Figure 2: USGS Topography
Figure 3: Aerial Photograph
Attachment A: Representative Site Photos
Attachment B: NAHC Correspondence
ATTACHMENT L 112 October 7, 2024 Item 07
Letter to Ms. Jones Page 7 of 7
July 8, 2024

REFERENCES
Bowman, Roy H.
1973 Soil Survey: San Diego Area. United States Department of Agriculture.

Beltsville, Maryland.

Kennedy, Michael P.
1975 Geologic Map of the Del Mar Quadrangle. Pocket map In Geology of the San Diego Metropolitan Area. California Division of Mines and Geology Bulletin No. 200, Sacramento.

Kennedy, Michael P. and Siang S. Tan
2008 Geologic Map of the San Diego 7.5’ Quadrangle, California. Digital preparation by Kelly R. Bovard, Anne G. Garcia, Diane Burns, and Carlos I. Gutierrez. Department of Conservation, California Geological Survey.

Mello, Monica
2016a Department of Parks and Recreation Site Record for P-37-036412. Form on file at the South Coastal Information Center, San Diego State University. 2016b Department of Parks and Recreation Site Record for P-37-036413. Form on file at the South Coastal Information Center, San Diego State University.

NETR Online
2023 Historic Aerials. Nationwide Environmental Title Research, LLC. Electronic document available at: http://www.historicaerials.com, accessed May 23, 2023.

Rogers, Malcom
n.d. Department of Parks and Recreation Site Record for P-37-026493. Form on file at the South Coastal Information Center, San Diego State University.

University of California, Santa Barbara (UCSB) Digital Library 2023 UCSB Frame Finder. University of California, Santa Barbara Digital Library. Electronic document available at https://mil.library.ucsb.edu/ap_indexes/FrameFinder, accessed May 23, 2023.

ATTACHMENT L 113 October 7, 2024 Item 07
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LAKE POWAY

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SANTEE LAKES

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COUNTY
ORANGE
COUNTY
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Ocean

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SAN DIEGO

IMPERIAL
BEACH

NATIONAL CITY

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OCEANSIDE

CHULA VISTA
VISTA
SANTEE

ENCINITAS

ESCONDIDO

EL CAJON
LEMON
GROVE
POWAY
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Project
Location
0 8 Miles
K
Figure 1
Regional Location
I:\PROJECTS\D\DelMarCity_01197\00002_AsNeeded\004_DelMarUndergrounding\Map\CR\CR.aprx Fig1_Regional : 01197.2.4 : 6/17/2024 - SAB Source: Base Map Layers (SanGIS, 2016)
Crest Canyon Undergrounding District X1A Project
ATTACHMENT L 114 October 7, 2024 Item 07
Project
Location
0 2,000 Feet
K
Figure 2
USGS Topography
I:\PROJECTS\D\DelMarCity_01197\00002_AsNeeded\004_DelMarUndergrounding\Map\CR\CR.aprx Fig2_USGS : 01197.2.4 : 6/17/2024 - SAB Source: DEL MAR 7.5' Quad (USGS)
Crest Canyon Undergrounding District X1A Project
ATTACHMENT L 115 October 7, 2024 Item 07
Bellaire St
Amphitheatre Dr
9th St
Hoska Dr
11th St
12th St
Cuchara Dr
Van Dyke Av e
8th St
Highland
Av e
SeaViewAve
LunetaDr
Balboa A v e
Court St
ZapoSt
Grand Ave
Vantage Way
15th St
Umatilla Dr
Sea Orbit Ln
Klish Way
Racetrack View Dr
Mango Way
Serp entine D r
Avenida Primavera
ZuniDr
Stratford Ct
Ocean Ave
Pacific Ln
14th St
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13th St
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Tewa St
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Klish Way
Luzon Av e
Half Moon Bay Dr
Orchid Ln
Kalamath Dr
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i
t
o
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Camino Del Mar
0 700 Feet K
Figure 3
Aerial Photograph
I:\PROJECTS\D\DelMarCity_01197\00002_AsNeeded\004_DelMarUndergrounding\Map\CR\CR.aprx Fig3_Aerial : 01197.2.4 : 6/17/2024 - SAB Source: Aerial (NearMap, 2023)
Crest Canyon Undergrounding District X1A Project
Project Site
Project Work Area
ATTACHMENT L 116 October 7, 2024 Item 07
Attachment A
Representative Site Photos
ATTACHMENT L 117 October 7, 2024 Item 07
G:\PROJECTS\D\DelMarCity_01197\CDM-02_OnCall_Env\DelMarUndergrounding\Reports\CUL Representative Site Photos
Attachment A
Crest Canyon Undergrounding District X1A Project
San Dieguito Drive, view to the southeast.

San Dieguito Drive, view to the south.

ATTACHMENT L 118 October 7, 2024 Item 07
G:\PROJECTS\D\DelMarCity_01197\CDM-02_OnCall_Env\DelMarUndergrounding\Reports\CUL Representative Site Photos
Attachment A
Crest Canyon Undergrounding District X1A Project
Oribia Road, view to the north.

Crest Way, view to the north.

ATTACHMENT L 119 October 7, 2024 Item 07
G:\PROJECTS\D\DelMarCity_01197\CDM-02_OnCall_Env\DelMarUndergrounding\Reports\CUL Representative Site Photos
Attachment A
Crest Canyon Undergrounding District X1A Project
Intersection of Crest Road, 15th Street, and Avenida Primavera, view to the north.

Crest Road, view to the south.

ATTACHMENT L 120 October 7, 2024 Item 07
Attachment B
NAHC Correspondence
ATTACHMENT L 121 October 7, 2024 Item 07

Sacred Lands File & Native American Contacts List Request

NATIVE AMERICAN HERITAGE COMMISSION
1550 Harbor Blvd., Suite 100
West Sacramento, CA 95691
(916) 373-3710
(916) 373-5471 – Fax
[email protected]
Information Below is Required for a Sacred Lands File Search Project: Del Mar Undergrounding Project (HELIX Project No. 01197.00002.004) County: San Diego
USGS Quadrangle Name: Del Mar
Township: 14S Range: 4W Section(s): 11, 13, 14
Company/Firm/Agency: HELIX Environmental Planning
Contact Person: Stacie Wilson
Street Address: _7578 El Cajon Blvd.

City: La Mesa Zip:_91942
Phone: (619) 462-1515
Fax: (619) 462-0552
Email: [email protected]
Date Sent: June 12, 2023
Project Description:

HELIX was contracted to conduct a cultural resources study for the proposed Del Mar Undergrounding Project (project), located in the City of Del Mar, in northern San Diego County. The project proposes to replace above ground telecom and electrical lines with subsurface utilities within residential roads.

ATTACHMENT L 122 October 7, 2024 Item 07
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LAKE HENSHAW

LAKE WOHLFORD
LAKE

SAN MARCOS

SUTHERLAND

RESERVOIR
HODGES

RESERVOIR

LAKE RAMONA

LAKE POWAY

CUYAMACA

RESERVOIR

EL CAPITAN

RESERVOIR

SAN VICENTE

MIRAMAR RESERVOIR

RESERVOIR

LAKE JENNINGS

SANTEE LAKES

LOVELAND

RESERVOIR
MURRAY

RESERVOIR

BARRETT

RESERVOIR

SWEETWATER

RESERVOIR

UPPER OTAY

RESERVOIR

LOWER OTAY

RESERVOIR

RIVERSIDE
COUNTY

SAN DIEGO
COUNTY

SAN DIEGO
COUNTY
ORANGE
COUNTY
Pacific
Ocean

CARLSBAD

DEL MAR

LA MESA

SAN DIEGO

IMPERIAL
BEACH

NATIONAL CITY
SOLANA
BEACH

CORONADO

SAN MARCOS

OCEANSIDE

CHULA VISTA
VISTA
SANTEE

ENCINITAS

ESCONDIDO

EL CAJON
LEMON
GROVE
POWAY
MEXICO
Project
Location
0 8 Miles
K
Figure 1
Regional Location
I:\PROJECTS\D\DelMarCity_01197\00002_AsNeeded\004_DelMarUndergrounding\Map\CR\CR.aprx Fig1_Regional : 01197.2.4 : 5/31/2023 - SAB Source: Base Map Layers (SanGIS, 2016)
Del Mar Underground
ATTACHMENT L 123 October 7, 2024 Item 07
Project
Location
0 2,000 Feet
K
Figure 2
USGS Topography
I:\PROJECTS\D\DelMarCity_01197\00002_AsNeeded\004_DelMarUndergrounding\Map\CR\CR.aprx Fig2_USGS : 01197.2.4 : 5/31/2023 - SAB Source: DEL MAR 7.5' Quad (USGS)
Del Mar Underground
ATTACHMENT L 124 October 7, 2024 Item 07
Bellaire St
Amphitheatre Dr
9th St
Hoska Dr
11th St
12th St
Cuchara Dr
Van Dyke Av e
8th St
Highla
n
d
Av e
SeaViewAve
LunetaDr
Balboa A v e
Court St
ZapoSt
Grand Ave
Vantage Way
15th St
Umatilla Dr
DavidWay
Sea Orbit Ln
Klish Way
Racetrack View Dr
Mango Way
Serp entine Dr
Avenida Primavera
ZuniDr
Stratford
Ct
Pacific Ln
14th St
Jimmy
Durante
Blvd
Penny Ln
Culebra St
Rimini R d
ZuniDr
Cr e st Rd
Lois Ln
Forest
Way
Parish Ln
Carolina Rd
Lozana Rd
Via Alta
R
e
c
u
erdoDr
10th St
Shippey Ln
Rim iniRd
Crest
Way
Maiden
Ln
Stratford Ct
Santa Fe Ave
O
r
bi
ai
R
d
Chris
ty
Ln
Malibu Way
13th St
Melanie Way
Tewa St
Jimmy
Duran
te
Blvd
Pin
e
w
o
o
d
Dr
San Dieguito Dr
S
t
ratf ord Way
Oribia R d
Gatun St
Klish
Way
Luzon Ave
Half Moon Bay Dr
Orchid Ln
KalamathDr
S
a
n
D
ei
g
u
i
to
Dr
Camino Del Mar
0 700 Feet K
Figure 3
Aerial Photograph
I:\PROJECTS\D\DelMarCity_01197\00002_AsNeeded\004_DelMarUndergrounding\Map\CR\CR.aprx Fig3_Aerial : 01197.2.4 : 5/31/2023 - SAB Source: Aerial (NearMap, 2019)
Del Mar Underground
Project Site
Approximate Project Alignment
ATTACHMENT L 125 October 7, 2024 Item 07
STATE OF CALIFORNIA Gavin Newsom, Governor

NATIVE AMERICAN HERITAGE COMMISSION

Page 1 of 1 ends

June 29, 2023
James Turner
HELIX Environmental Planning, Inc.

Via Email to: [email protected]
Re: Del Mar Undergrounding Project, San Diego County
Dear Mr. Turner:

A record search of the Native American Heritage Commission (NAHC) Sacred Lands File (SLF) was completed for the information you have submitted for the above referenced project. The results were negative. However, the absence of specific site information in the SLF does not indicate the absence of cultural resources in any project area. Other sources of cultural resources should also be contacted for information regarding known and recorded sites.

Attached is a list of Native American tribes who may also have knowledge of cultural resources in the project area. This list should provide a starting place in locating areas of potential adverse impact within the proposed project area. I suggest you contact all of those indicated; if they cannot supply information, they might recommend others with specific knowledge. By contacting all those listed, your organization will be better able to respond to claims of failure to consult with the appropriate tribe. If a response has not been received within two weeks of notification, the Commission requests that you follow-up with a telephone call or email to ensure that the project information has been received.

If you receive notification of change of addresses and phone numbers from tribes, please notify me. With your assistance, we can assure that our lists contain current information.

If you have any questions or need additional information, please contact me at my email address: [email protected].

Sincerely,
Pricilla Torres-Fuentes
Cultural Resources Analyst
Attachment

CHAIRPERSON
[VAVANT]

VICE CHAIRPERSON
Reginald Pagaling
Chumash

SECRETARY
Sara Dutschke
Miwok

COMMISSIONER
Isaac Bojorquez
Ohlone-Costanoan

COMMISSIONER
Buffy McQuillen
Yokayo Pomo, Yuki,
Nomlaki

COMMISSIONER
Wayne Nelson
Luiseño

COMMISSIONER
Stanley Rodriguez
Kumeyaay

COMMISSIONER
[VAVANT]

COMMISSIONER
[VACANT]

EXECUTIVE SECRETARY
Raymond C.

Hitchcock
Miwok/Nisenan

NAHC HEADQUARTERS
1550 Harbor Boulevard
Suite 100
West Sacramento,
California 95691
(916) 373-3710
[email protected]
NAHC.ca.gov
ATTACHMENT L 126 October 7, 2024 Item 07
________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 July 11, 2024
Ashley Jones
City of Del Mar
1050 Camino Del Mar
Del Mar, CA 92014
c/o Jennifer Gavin
RE: Final Biological Resources Letter Report for the Proposed Crest Canyon Undergrounding District X1A Project, City of Del Mar, San Diego County, California
Ms. Jones:

Busby Biological Services, Inc. (BBS) has prepared this biological resources letter report on behalf of HELIX Environmental Planning, Inc. (HELIX) for the City of Del Mar (City) Crest Canyon Undergrounding District X1A Project (project) located in the City of Del Mar, San Diego County, California (Attachment 1: Figure 1).

The purpose of this biological resources letter report is (1) to document the existing biological conditions within the approximate 147.019-acre survey area, which includes the City District X1A and an approximate 100-foot survey buffer around project features; (2) to evaluate the survey area and the vicinity for the potential to support sensitive biological resources; (3) to provide an analysis of the potential effects associated with the project with respect to local, state, and federal policies; and (4) to provide a discussion of project-specific design features and construction operating procedures (i.e., contractor commitments) that have been incorporated into the project to avoid significant direct and indirect effects to sensitive biological resources. Furthermore, this report provides the biological resources technical documentation necessary for review of the project under the California Environmental Quality Act (CEQA) by the City’s Planning and Community Development Services Department.

1.0 INTRODUCTION

1.1 Project Location
The project occurs within the boundaries of the City’s District X1A, immediately adjacent to and south of the San Dieguito Lagoon, approximately 0.5 mile east of the Pacific Ocean, 0.5 mile west of Interstate 5, 0.5 mile north of Del Mar Heights Road, and within Sections 11 and 14, Township 14 South, Range 4 West, on the U.S. Geological Survey (USGS) 7.5-minute Del Mar quadrangle (USGS 2021; Attachment 1: Figure 2). In general, the project alignment is located along Crest Road, from the border of the City of San Diego in the southern portion of the project area, north to a cul-de-sac on Serpentine Drive, as well as within several intersecting streets (Attachment 1: Figures 1 through 6). The project also occurs east of Crest Road within Crest Canyon Open Space, along Oribia Road, along San Dieguito Drive, within and adjacent to the San Dieguito Lagoon, terminating near Grand Avenue Overlook in the northwestern corner of the project area (Attachment 1: Figures 3 through 6).

ATTACHMENT M 127 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 2 The entire project is located within the planning boundaries of the San Diego Multiple Species Conservation Program (MSCP), with the northern, eastern, and southern portions of the survey area located within San Dieguito Lagoon MSCP Core Area 13 (Attachment 1: Figure 3). In addition, the entire project is located within the Coastal Zone and the City of Del Mar Subarea, which is currently being prepared and not available to the public as it has not been approved or adopted as of the date of this report. Besides very low density and low density residential zoning, additional zonings within the survey area include the Floodway Zone and Lagoon Overlay Zone, both occurring in the northern portion of the survey area within and adjacent to the San Dieguito Lagoon; the Open Space Overlay Zone, occurring within Crest Canyon Open Space (also zoned as Public Parkland Zone) in the southern portion of the survey area and San Dieguito Lagoon, it’s adjacent floodway, and some of the bluffs and steep slopes adjacent to San Dieguito Lagoon in the northern portion of the survey area; the Bluff, Slope, and Canyon Overlay Zone, generally occurring in portions of land throughout the survey area that contain steep slopes exceeding 25 percent grade (City 2001 and 2024; Attachment 1: Figures 3 and 4).

The eastern boundary of the survey area occurs within the City of San Diego’s Multi-Habitat Planning Area (MHPA) and Crest Canyon Open Space, both of which protect sensitive biological resources and open space covered within the City of San Diego’s MSCP Subarea Plan (City of San Diego 1997; Attachment 1: Figure 3). In addition, the project is not located within or immediately adjacent to U.S. Fish and Wildlife Service (USFWS) designated or proposed critical habitat; however, critical habitat for the western snowy plover (Charadrius alexandrinus nivosus) occurs within a managed preserve area within the San Dieguito Lagoon, approximately 500 feet to the north of the survey area.

1.2 Project Description
This project proposes to install underground electrical and telecom services and decommission existing utility poles and overhead lines, consisting of a phased approach with the following components:
1) publicly funded trenching for new conduit installation, construction of new utility equipment pads, construction of new handholes, and construction of retaining walls associated with the proposed undergrounding of electrical and telecom within approximately 12,300 linear feet of existing public right-of-way and private streets; 2) private residence homeowner funded trenching and new conduit from meter stations/boxes for 85 houses out to the street right-of-way at locations to underground services where overhead utilities currently exist to the homes; 3) public right-of-way and private property/homeowner repairs to the surface, including roadway paving and replacement of vegetation/landscaping disturbed during construction of the trench, pads, handholes, and retaining walls; 4) utility agency installed equipment and wiring for the proposed electrical and telecom services; and
5) utility agency removal of all overhead wires and poles currently located within District X1A.

The project has been sited and designed to predominantly occur within and adjacent to developed areas (e.g., streets, driveways, and yards), with only minimal work within and adjacent to sensitive native habitats (i.e., San Dieguito Lagoon, Crest Canyon Open Space, ATTACHMENT M 128 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 3 and other sensitive canyon areas) that may support sensitive biological resources. Based on the close proximity to the San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive canyon areas, the project design includes implementation of specific construction operating procedures (i.e., contractor commitments) and best management practices (BMPs) during construction activities within and adjacent to sensitive native habitats to assure protection of and avoid significant effects to sensitive biological resources in these areas.

The majority of the excavations for the trenches, pads, and walls associated with the underground electrical and telecom services will occur within and adjacent to developed areas and will not be located within or adjacent to sensitive biological resources. Most of this work is expected to be completed with rubber-tired backhoes, loaders, and trucks. Breaker attachments on the backhoes may be necessary for excavation in areas of hard sandstone.

Much of the work and equipment staging associated with the underground electrical and telecom services will occur within existing developed streets and driveways, with some exceptions for equipment access and retaining wall installation adjacent to the paved areas, private property/homeowner trenching through yards to existing meter locations, overhead wire and pole removals for existing lines, and trenching in small fragments of disturbed land or native vegetation immediately adjacent to streets.

The pole and overhead wire removal work as well as equipment staging associated with the pole and overhead wire removals will also mostly occur within developed areas, with the exception of some pole and overhead wire removals occurring in small fragments of disturbed land or native vegetation immediately adjacent to streets, and within and adjacent to San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive canyon areas. Due to the close proximity of sensitive biological resources. pole removals in Crest Canyon Open Space and other sensitive canyon areas will be completed by hand where crews will walk in to hand cut poles at ground level, fell the poles, cut them into manageable pieces, and haul them out with small rubber tired tractor-trailer or wheelbarrow. Alternately, the San Diego Gas and Electric Company (SDG&E) may choose to hand cut the poles at ground level and helicopter the poles out of sensitive canyon areas. Similarly, pole removals in sensitive lagoon areas will be completed by hand where crews will walk in to hand cut the poles at ground level, fell the poles, and remove them with a boom truck from locations where a boom truck can reach the pole location while parked on the existing paved road. Removal of the single telecom pole (i.e., TP4; Attachment 1: Figure 5a) located far from San Dieguito Drive within San Dieguito Lagoon will be by hand, and crews will walk in to hand cut the pole at ground level, fell the pole, cut it to manageable pieces, and haul it out with a wheelbarrow.

No grading or substantial soil disturbances are anticipated during pole removal activities.

Minor vegetation trimming and/or trampling may occur to ornamental and native vegetation during overland pedestrian egress and regress to the poles to be removed and during pole felling (Attachment 1: Figures 5a and 5b). During pole removal, no vegetation trimming or root disturbance will occur within access routes and work areas with open or low-growing vegetation, and only minor vegetation trimming with no root disturbance will occur within other access routes and work areas with dense or tall vegetation. The size of these pedestrian access routes and work areas associated with the proposed project activities will vary depending on the location of each pole and its proximity to existing roads and developed areas, with a maximum width of approximately 3 feet for pedestrian access routes and a maximum radius of 8 feet around poles as a temporary work area.

ATTACHMENT M 129 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 4 Additionally, the following construction operating procedures and BMPs would be implemented when construction occurs within or adjacent to sensitive biological resources and such would be noted/included as “Environmental Contractor Commitments” on the Final Construction Plan Set.
• Prior to Construction:
o A qualified biologist, retained by the contractor, shall attend a pre-construction meeting to present a “worker environmental awareness training” to all construction personnel to discuss the project’s construction operating procedures (i.e., contractor commitments) and BMPs.
o A qualified storm water/erosion control monitor, retained by the contractor, shall educate all construction personnel about storm water pollution prevention, BMPs, and other measures needed during various construction activities to manage urban runoff and prevent unauthorized discharges from construction. • During Construction:
o Construction activities (including access and staging areas) shall be restricted to areas presented in this report and as reflected on the construction drawings.

The qualified biologist shall conduct routine construction monitoring to monitor environmental compliance and ensure the project construction operating procedures and BMPs are implemented and maintained. In addition, the monitoring biologist shall document field activity via monitoring forms for submittal to the City to demonstrate compliance. If items of non-compliance are identified, the biologist shall notify the on-site construction superintendent immediately to discuss and implement corrective actions. Issues of noncompliance that result in direct or indirect effects on sensitive biological resources shall be documented and provided to the City within 72-hours of identification. The monitoring biologist shall note/act to prevent any new disturbances to habitat, flora, and/or fauna on site (e.g., flag plant specimens for avoidance during access). If active nests or other previously unknown sensitive resources are detected, all project activities that directly impact the resource shall be delayed until species specific local, state, or federal regulations have been determined and applied by the Qualified Biologist. o Clearing of vegetation in sensitive natural areas shall be minimal and will occur immediately adjacent to developed areas and vegetation trimming and overland pedestrian access in sensitive natural areas shall be minimal, and therefore, will not result in the introduction or expansion of invasive plants (i.e., plant species on the California Invasive Plant Council [Cal-IPC] “high” and “moderate” list; Cal-IPC 2024) into areas within and adjacent to proposed project features.
o Project-related activities within and adjacent to San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive natural areas shall be of short duration and limited to daylight hours (i.e., will not require the use of artificial light sources) to avoid deterring wildlife from these areas. o Pole removal within aquatic resources in San Dieguito Lagoon occur during low tides to minimize affects to these resources.
o Breeding/Nesting Bird Avoidance:
 Work within and adjacent to sensitive biological areas (i.e., San Dieguito Lagoon and Crest Canyon Open Space) would occur outside of the general bird breeding/nesting season (generally February 1 to ATTACHMENT M 130 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 5 August 31), where feasible. Avoidance of this Migratory Bird Treaty Act (MBTA) breeding/nesting season, would also avoid the nesting season for the coastal California gnatcatcher (March 1 through August 30), light-footed Ridgway’s rail (April 1 through August 31), and Belding’s savannah sparrow (February 15 through June 30). Work outside of these sensitive biological areas, within developed areas and residential yards, which requires vegetation trimming or vegetation removal shall also be timed to occur outside of the general bird breeding/nesting season (i.e., no vegetation impacts between February 1 to August 31).
 If avoidance of the bird breeding/nesting season is not feasible, then a pre-construction survey would be conducted by a qualified biologist within seven days prior to the start of work to search for nesting birds within project work areas and the surrounding 300 feet, where feasible.

If the surveys conclude no active nesting, the work shall resume as planned. If project activities are delayed or suspended for more than seven days during the breeding season, surveys shall be repeated prior to re-initiating work.
 If results of a bird survey identify active nesting birds within or adjacent to project work areas, an appropriate nest buffer (i.e., work avoidance area) shall be established by the qualified biologist, and if feasible, fenced or demarcated to restrict access in the buffer. Buffer distances may include, but shall not be restricted to, 25 feet around nests of common, non-listed birds and 300 feet around nests of sensitive, listed birds. Each of these buffers may be reduced, if appropriate, and as directed by a qualified biologist. The reduction in no-work buffers shall be approved by the City prior to implementation. Each nest avoidance buffer zone shall not be disturbed until a qualified biologist has determined that the young have fledged, or the nest has otherwise become inactive.
 If construction activities (i.e., those potentially exceeding 60dBa hourly average, such as trenching, excavating, paving, and etc.) adjacent the San Dieguito Lagoon and Crest Canyon Open Space are not completed prior to the breeding season for coastal California gnatcatcher, light-footed Ridgway’s rail, and Belding’s savannah sparrow, and these species are found present during the preconstruction surveys, then appropriate noise attenuation measures shall be implemented to reduce construction noise levels at the edge of occupied habitat. Noise levels shall be recorded by a qualified noise specialist and intermittent monitoring shall be conducted by a qualified biologist to ensure project-generated noise does not exceed 60dBa hourly average, unless ambient noises exceed 60dBa for which construction can proceed up to the ambient noise level. If noise attenuation measures are determined necessary by the qualified biologist, the following measures shall be incorporated:
• Construction equipment shall be properly outfitted and maintained with manufacturer-recommended noise-reduction devices.

ATTACHMENT M 131 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 6 • Diesel equipment shall be operated with closed engine doors and equipped with factory-recommended mufflers.
• Mobile or fixed “package” equipment (e.g., arc-welders and air compressors) shall be equipped with shrouds and noise control features that are readily available for that type of equipment. • Electrically powered equipment shall be used instead of pneumatic or internal- combustion powered equipment, where feasible.
• Unnecessary idling of internal combustion engines (e.g., in excess of five minutes) shall be prohibited.
• The use of noise-producing signals, including horns, whistles, alarms, and bells, shall be for safety warning purposes only. • No project-related public address or music system shall be audible at any adjacent sensitive receptor.
• Temporary sound barriers or sound blankets shall be installed between construction operations and adjacent noise-sensitive habitat.
o Tree Protection:
 A Certified Arborist should be present when trenching, excavations, and hand digging is planned adjacent to protected tree species (i.e., Torrey pine [Pinus torreyana], Monterey cypress [Hesperocyparis macrocarpa], and other tree species located within the
environmentally sensitive Open Space Overlay Zone, Central Commercial Zone, public rights-of-way, and on public and Cityowned property) to determine if root pruning without significant impacts on tree health and stability is possible. If a trenching location falls within the designated critical root zone (CRZ) of the tree (i.e., six times trunk diameter away from the trunk) then the trench should be carefully excavated with an AirSpade or hand tools to expose the tree roots under the supervision of a Certified Arborist, if possible.  Efforts should be made to avoid or minimize root cutting/tearing during trenching, adding fill soil over roots, altering water drainage patterns, soil compaction, mechanical injuries from equipment, heat damage from exhaust, and chemical damage from contamination/ runoff onto the trees or soil (WCA 2021).
 Root pruning around a tree should not occur any more than absolutely necessary, especially if done near the top 18 inches of soil and within a radius of at least 2 to 3 times the radius of the crown, as pruning can be an injurious practice that can significantly damage trees and affect their structural strength and health (West Coast Arborists, Inc. [WCA] 2021). Linear root pruning cuts on one side of a tree will likely reduce stability when the cut is made at a distance from the trunk that is less than three times the trunk diameter (WCA 2021).
 If logistically and fiscally reasonable, horizontal directional drilling (HDD) is the preferred method to mitigate impacts to tree health.

Conduit for utilities should be installed to a minimum depth of 3 to 4 feet below grade to reduce the likelihood of severing structurally important roots. Entry and exit points for boring, as well as materials/equipment, should be placed outside of any tree canopy ATTACHMENT M 132 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 7 driplines throughout the construction process (WCA 2021).  A Tree Protection Zone (TPZ), where logistically feasible, should be established around trees during project activities to protect the tree’s roots and surrounding soils from damages. It is recommended that a 4- to 6-foot-tall stable fence be installed at or beyond the tree’s drip line to keep equipment, tools, soil, etc. out of the TPZ. The TPZ should be clearly marked with signs stating that the area within is a TPZ and no one is allowed to disturb it. Irrigation should be provided within the entire TPZ throughout construction to maintain adequate soil moisture levels. Root pruning or any soil disturbances performed within the TPZ areas should be done under the supervision and at the direction of a Certified Arborist (WCA 2021).
 Driving equipment near trees or in the TPZ should be avoided, if possible, to reduce soil compaction and tearing/crushing of roots. If necessary for specific tasks, it is recommended to add a 4-inch layer of mulch with ¾ inch plywood on top of any soft scaping (WCA 2021). o Storm Water Pollution and Erosion Control:
 A qualified storm water/erosion control monitor shall be responsible for monitoring weather conditions and implementation of any emergency plans as needed, evaluating the conditions of the site, overseeing construction operations, and inspecting and maintaining of the BMPs to keep the site in compliance.
 Appropriate BMPs shall be implemented during construction to capture and/or direct flows away from sensitive natural areas and away from the storm drain system to prevent toxins, chemicals, petroleum products, exotic plant materials, erosion, sediments, and other foreign materials from entering and degrading the adjacent San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive natural areas.

Examples of construction BMPs include, but are not limited to, silt fencing, gravel bags, fiber rolls, temporary filters at storm drain inlets, containment areas for solid waste storage and concrete washout, limiting fueling/maintenance of equipment to designated areas outside and away from waters or wetlands areas, plastic covers, blankets/mats, and street sweeping, providing and installing material containment devices for refueling or fixing equipment that is not easily movable away from waters.
• Post-Construction:
o The qualified biologist shall survey the project work areas to verify that authorized limits of work were not exceeded and provide documentation via brief email or letter to the City. In the event that direct effects to sensitive vegetation exceed previously approved amounts, these additional effects shall be documented, quantified, and mitigated in accordance with City ordinances; CEQA; and other applicable local, state, and federal laws. o Streets and driveways disturbed during construction will be repaved. o A California native hydroseed mix, provided by a qualified biologist, will be used to replace vegetation that has been disturbed or cleared during construction, where necessary, except for within a few properties where homeowners have requested the use of replacement ornamental plants in their yards disturbed during construction. The native hydroseed mix shall be ATTACHMENT M 133 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 8 submitted to the City by the contractor and approved by the City prior to application. Besides application of a California native hydroseed mix, where applicable, no restoration or revegetation of native vegetation communities is anticipated, as effects on native vegetation are anticipated to be minimal.

2.0 RELEVANT REGULATIONS
The following federal, state, and/or local regulations or policies apply to the project.

2.1 Applicable Federal Regulations
Federal Endangered Species Act
The federal Endangered Species Act (ESA) provides the legal framework for the listing and protection of species (and their habitats) that are identified as being endangered or threatened with extinction. Actions that jeopardize endangered or threatened species and the habitats upon which they rely are considered ‘take’ under the ESA. Section 9(a) of the ESA defines ‘take’ as “to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or attempt to engage in any such conduct.” The ESA is administered by USFWS. The project would comply with the federal ESA.

Rivers and Harbors Act & Clean Water Act (Section 404)
The Rivers and Harbors Act of 1899 and the Clean Water Act (CWA) of 1972 provide guidance for project activities within non-marine, Traditional Navigable Waters (TNWs) and/or “waters of the U.S.” (WoUS). The U.S. Army Corps of Engineers (USACE) and U.S.

Environmental Protection Agency (EPA) jointly regulate discharges of dredged or fill material into WoUS, including wetland and non-wetland aquatic features, pursuant to Section 404 of the CWA. The discharge of any pollutant from a point source into TNWs is illegal unless a permit under the CWA’s provisions is acquired. Projects can be permitted on an individual basis via a Standard Individual Permit (SIP) or by an applicable nationwide permit (NWP) or regional general permits (RGPs). The project would comply with the Rivers and Harbors Act of 1899 and the CWA.

Coastal Zone Management Act
The Coastal Zone Management Act of 1972 (CZMA) is administered by the National Oceanic and Atmospheric Administration’s (NOAA’s) Office of Ocean and Resource Management (OCRM) and the California Coastal Commission (CCC). The CZMA preserves, protects, develops, and – where possible – enhances or restores the coastal zone in the U.S. California has a federally approved Coastal Zone Management Program (CZMP) for comprehensive management within the state coastal zone, which extends up to 3 miles seaward and inland.

The California Coastal Act (CCA) is California's coastal zone management program under the CZMA, as discussed further in Section 2.2, below. The project would comply with the CZMA.

ATTACHMENT M 134 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 9 Migratory Bird Treaty Act
All migratory bird species that are native to the U.S. or its territories are protected under the federal MBTA, as amended under the Migratory Bird Treaty Reform Act of 2004. The MBTA prohibits the kill or transport of native migratory birds or any part, nest, or egg of any such bird unless allowed by another regulation adopted in accordance with the MBTA. No permit is issued under the MBTA, and the MBTA does not mandate specific protection. However, typical acceptable requirements include nesting bird surveys during the avian breeding season (generally February 1 to August 31, including raptors) and avoidance measures if nesting birds are discovered within or adjacent to a project. Potential avoidance measures include, but are not limited to, construction monitoring, avoidance areas, and noise barriers.

The project would comply with the MBTA.

2.2 Applicable State Regulations
California Environmental Quality Act
CEQA requires an environmental review for projects with potentially adverse effects on the environment. Adverse effects are typically mitigated in accordance with state laws and regulations. The project would comply with CEQA.

California Endangered Species Act
The California ESA is similar to the federal ESA in that it provides the legal framework for the listing and protection of species (and their habitats) by the State of California (State) that are identified as being endangered or threatened with extinction. The notable difference between the federal ESA and the California ESA is that the California ESA does not include harassment in its definition of ‘take.’ The project would comply with the California ESA.

California Fish and Game Code
The California Fish and Game Code (CFGC), Sections 1600 through 1603, provides guidance for project activities within rivers, streams, lakes, riparian habitat, and other wetlands as well as vernal pools when California state threatened and/or endangered species are present. CFGC Section 1602 requires an entity to notify the CDFW prior to commencing any activity that may do one or more of the following:
• Substantially divert or obstruct the natural flow of any river, stream, or lake; • Substantially change or use any material from the bed, channel, or bank of any river, stream, or lake; or
• Deposit debris, waste, or other materials that could pass into any river, stream, or lake.

CDFW can issue a Lake or Streambed Alteration Agreement (LSAA) for projects that substantially adversely affect CDFW jurisdictional resources. To avoid the need for an LSAA from CDFW, all proposed effects should remain outside of the top of active banks and the canopy/dripline of any associated riparian vegetation, whichever is greater. If the activity would not substantially adversely affect any CDFW jurisdictional resources, the entity may commence the activity without an LSAA.

ATTACHMENT M 135 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 10 The CFGC also provides specific protection and listing for wildlife. CFGC Section 3503 states that it is unlawful to take, possess, or needlessly destroy the nest or eggs of any bird, except as otherwise provided by the code or any regulation made pursuant thereto. CFGC Section 3503.5 states that it is unlawful to take, possess, or destroy any birds of prey or to take, possess, or destroy the nest or eggs of any such bird unless authorized by CDFW. CFGC Section 3513 states that it is unlawful to take or possess any migratory non-game bird as designated in the MBTA. These regulations could require that construction activities (particularly vegetation removal or construction near nests) be reduced or eliminated during critical phases of the nesting cycle unless surveys by a qualified biologist demonstrate that nests, eggs, or nesting birds would not be disturbed, subject to approval by CDFW and/or USFWS. The project would comply with the CFGC.

California Native Plant Protection Act
The California Native Plant Protection Act (NPPA) is administered by CDFW. It preserves, protects, and enhances rare and endangered plant species within California. CDFW requires a permit pursuant to Section 2081(a and b) of the California ESA for take of plant species designated as candidate, rare, threatened, or endangered. The project would comply with the NPPA.

Porter-Cologne Water Quality Control Act
The Porter-Cologne Water Quality Control Act provides guidance for project activities that may affect water quality in California. The State Water Resources Control Board (SWRCB) has this responsibility for projects affecting waters within multiple Regional Water Quality Control Boards’ (RWQCB) jurisdictions. Jurisdiction of the RWQCB extends to all WoUS, including wetlands, and to “waters of the State” (WoS) (described below).

The Porter-Cologne Water Quality Control Act gives the State’s very broad authority to regulate WoS, which are defined as any surface water or groundwater, including saline waters. The Porter-Cologne Water Quality Control Act has become an important tool for the regulatory environment following the Solid Waste Agency of Northern Cook County (SWANCC) and Rapanos court cases as well as with the implementation of the Federal Navigable Waters Protection Act (NWPR), with respect to the State’s authority over isolated and otherwise insignificant waters. Generally, in the event that there is no nexus to a Relatively Permanent Water (RPW) or TNW, or if the water is determined to be ephemeral, any person proposing to discharge waste into WoS that could affect its water quality must file a Report of Waste Discharge. Although “waste” is partially defined as any waste substance associated with human habitation, the RWQCB also interprets this to include fill discharged into water bodies. The project would comply with the Porter-Cologne Water Quality Control Act.

Clean Water Act (Section 401)
Pursuant to the Porter-Cologne Water Quality Control Act, under Section 13000 et seq. of the California Water Code (CWC), the SWRCB or RWQCB may issue Waste Discharge Requirements for waters that do not meet the definition of a WoUS. For effects on WoUS (i.e., when a CWA Section 404 permit is obtained), the SWRCB or RWQCB may issue Water Quality Certifications under Section 401 of the CWA for project activities that fill or dredge.

ATTACHMENT M 136 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 11 Isolated waters – such as vernal pools – and other waters showing lack of connectivity to a TNW may be regulated under this act via the issuance of a Waste Discharge Permit. The project would comply with the CWA.

California Coastal Act
The CCA, administered by the CCC, is California's coastal zone management program under the CZMA, which regulates the conservation and use of coastal Environmentally Sensitive Habitat Areas (ESHAs) through responsible development. Under the CCA, ESHAs are defined as areas “in which plant or animal life or their habitats are either rare or especially valuable because of their special nature or role in an ecosystem and which could be easily disturbed or degraded by human activities and developments.” It limits activities within ESHAs and requires protection of ESHAs from significant disruption of habitat values. The CZMP is administered by the California Coastal Conservancy and the CCC. The California Coastal Conservancy is responsible for purchasing, protecting, restoring, and enhancing coastal resources, while the CCC manages the development within the coastal zone. The CCA encourages local governments to create Local Coastal Programs (LCPs) to protect public access and coastal resources on a local level. The local government typically issues Coastal Development Permits (CDPs) and implements their approved LCP in regulating developments within the coastal zone. Portions of the project are within areas under the jurisdiction of the City’s certified LCP and the CCC permit authority area. The project would comply with the CCA.

Natural Community Conservation Planning Program
The California Natural Community Conservation Planning (NCCP) program, administered by CDFW, is a cooperative effort by the CDFW and numerous public and private partners that takes a broad-scale, ecosystem approach to planning for the protection and perpetuation of biological diversity throughout California by protecting both habitats and the species within these habitats while also accommodating compatible land use. The San Diego MSCP is part of this NCCP program and is discussed in further detail Section 2.3, below. The project would comply with the NCCP.

2.3 Applicable Local Programs and Regulations
San Diego Multiple Species Conservation Program
The MSCP, which was approved in August 1998, covers 85 species and includes a 900- square mile area in southwestern San Diego County (County 1998). The Draft City of Del Mar Subarea, portions of the unincorporated County, and 10 additional city jurisdictions comprise the MSCP Plan area. It is a comprehensive, long-term habitat conservation plan that addresses the needs of multiple species by identifying key areas for preservation as open space to link core biological areas into a regional wildlife preserve. The MSCP is one of several large multiple jurisdictional habitat planning efforts in San Diego County, each of which constitutes a subregional plan under the NCCP Act of 1991. The MSCP includes incorporated cities in southwestern San Diego County that will implement their respective portions of the MSCP through citywide “subarea” plans, which describe the specific implementing mechanisms each city will institute for the MSCP. The project is within portions of an area identified as the San Dieguito Lagoon MSCP Core Area. In addition, the project ATTACHMENT M 137 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 12 occurs within the City’s draft Subarea Plan, which is currently being prepared and is not available to the public as it has not been approved or adopted as of the date of this report.

Therefore, the project is not subject to the provisions of the MSCP, although it is referenced in this report for project planning considerations and demonstration of voluntary consistency.

City of Del Mar Community Plan
The Environmental Management Element of the City’s Community Plan (General Plan) provides goals and policies applicable to the project area as they relate to the conservation of natural resources as well as the protection and preservation of sensitive species and their habitats (City 2021). Specifically, the goals and policies applicable to the project include the protection of San Dieguito Lagoon, floodways and floodplains, sensitive vegetation communities, trees, bluffs, steep slopes, and open space. The project would comply with the City’s General Plan.

Del Mar Municipal Code
The following City municipal codes are applicable to the protection of biological resources, floodways, parklands, and natural open space areas in the survey area (City 2024):
• Chapter 8.12 (San Dieguito Lagoon and River) – protects the biodiversity, natural heritage, and aquatic and upland ecosystems of the San Dieguito Lagoon and San Dieguito River; sustains, conserves, and protects natural habitats, wildlife and marine life populations; accommodates habitat restoration projects; improves educational, and research opportunities; and accommodates recreational activities. • Chapter 23.50 (Trees) – protects Torrey pine, Monterey cypress, and other tree species located within the environmentally sensitive Open Space Overlay Zone, Central Commercial Zone, as well as within public rights-of-way and on public and City-owned property. Trees will be protected within the southern and northern portions of the survey area that occur within and adjacent to the Open Space Overlay Zone, as well as within public rights-of-way and on public and City-owned property throughout the survey area.
• Chapter 30.29 (Floodway Zone) – preserves areas subject to floodwater; reduces the need for construction of flood control facilities; protects the health, safety, and general welfare of persons and of properties located within and adjacent to the floodway. The northern portion of the survey area within San Dieguito Lagoon occurs within this zone.
• Chapter 30.30 (Public Parkland Zone) – designates publicly owned land for use as a public park or open space preserve. The southern portion of the survey area within Crest Canyon Open Space occurs within this zone.
• Chapter 30.52 (Bluff, Slope, and Canyon Overlay Zone) – protects the health, safety, and general welfare; controls the development of properties in order to preserve the bluffs, canyons, and steep slopes; and protects downstream resources from the adverse impacts of erosion and sedimentation. In general, portions throughout the survey area that contain steep slopes exceeding 25 percent grade occur within this zone.
• Chapter 30.53 (Lagoon Overlay Zone) – protects the biological resources within the San Dieguito Lagoon, including both the wetland resources and sensitive upland habitats. The northern portion of the survey area within and adjacent to San Dieguito Lagoon occurs within this zone.

ATTACHMENT M 138 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 13 • Chapter 30.60 (Open Space Overlay Zone) – protects open space areas to ensure an atmosphere of openness and preserve scenic vistas and unique natural features.

The San Dieguito Lagoon and adjacent floodway zone, Crest Canyon Open Space, and the bluffs and steep slopes adjacent to San Dieguito Lagoon in the northern portion of the survey area occur within this zone.

All development activities and projects in these zones are to be designed and implemented in a manner consistent with the required protections and permitted uses specified under in the applicable Sections of the City’s municipal codes.

3.0 METHODS
BBS performed background research and field reconnaissance surveys for the approximately 147-acre survey area, which included approximately 2 acres of proposed project features as well as approximately 145 acres adjacent to these features. The methods used for the background research and the field reconnaissance surveys are summarized below.

3.1 Project Background Research
Prior to conducting the field reconnaissance surveys, BBS conducted a literature review of applicable environmental documents and regulations for the proposed project, which included – but was not limited to – a review of online aerial satellite imagery (Google 2024); USGS 7.5-minute Del Mar topographic quadrangle maps (USGS 2024), U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) soil survey maps (USDA 2024); and other reputable online resources that provide data for the region.

A BBS Geographic Information Systems (GIS) Analyst conducted a query for historical sensitive species occurrences and habitat data for the survey area and a 1-mile buffer around the survey area. Databases and websites reviewed included:
• California Natural Diversity Database (CNDDB; CDFW 2024a); • USFWS all species occurrence database (USFWS 2024a);
• County of San Diego (County) SanBIOS database (County 2024); • California Native Plant Society (CNPS) online database (2024); • Jepson Online Interchange (Jepson Flora Project 2024); • Calflora Database (Calflora 2024); i
• USFWS Critical Habitat Portal (USFWS 2024b);
• Special Vascular Plants, Bryophytes, and Lichens List (CDFW 2024b); and • Special Animals List (CDFW 2024c).

BBS used the data obtained during the background research to inform the habitat assessments performed during the field reconnaissance surveys and to determine the potential for occurrence for sensitive species within the survey area.

3.2 Biological Reconnaissance Survey
BBS conducted a biological reconnaissance survey within the survey area to document existing biological resources on-site, assess the survey area for the potential to support sensitive biological resources, and assess the survey area for potential direct and indirect ATTACHMENT M 139 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 14 effects that could occur to sensitive biological resources from the implementation of the project.

The entire survey area was surveyed on-foot and by car; however, some areas of private property were inaccessible on foot and, therefore, could only be surveyed visually with the aid of binoculars from accessible vantage points. Focused sensitive plant and wildlife surveys or an aquatic resource delineation were not conducted, because no significant effects on sensitive biological resources are anticipated as the project has been designed to avoid and minimize direct and indirect effects on sensitive biological resources through the implementation of BMPs and specific construction operating procedures (i.e., contractor commitments). Although a focused aquatic resource delineation was not conducted, the survey area was investigated for potentially jurisdictional aquatic resources, and these resources were preliminarily mapped during the biological reconnaissance survey.

BBS recorded plant and wildlife species observed directly and/or detected by indirect sign (e.g., scat, tracks, burrows, vocalizations) within the survey area. BBS mapped vegetation communities and land cover types by hand onto a 200-foot-scale (1 inch = 200 feet) aerial photograph-based field map of the survey area as well as with a hand-held Global Positioning System (GPS) using ArcGIS Field Maps. Dominant plant species within each vegetation community and land cover type were noted; however, since a large portion of the survey area was urbanized, many of the ornamental species in these areas were not identified to species.

Digital photographs of representative areas were taken during the reconnaissance survey. A hand-held GPS device was used to record the locations of photograph points; sensitive species; and some utility pole, anchor pole, and anchor locations where they were absent from or did not appear to be consistent with the project CAD files. Following completion of the fieldwork, a GIS Analyst digitized all hand-mapped vegetation polygons in the office using ArcGIS software.

In addition, an International Society of Arboriculture (ISA) Certified Arborist from WCA mapped, documented approximate trunk diameters, and visually inspected Torrey pine and Monterey cypress within and adjacent to proposed project features, as well as reviewed tree data within WCA’s existing tree inventory database for the City.

Vegetation community classifications follow Holland (1986) as modified by Oberbauer (2008). Plant nomenclature follows the Jepson Online Interchange (Jepson Flora Project 2024) for native and naturalized species, and Sunset Western Garden Book (Brenzel 2012) for ornamental species. Wildlife nomenclature follows Crother (2017) for amphibians and reptiles, American Ornithological Society Checklist (Chesser et al. 2022) and the San Diego County Bird Atlas (Unitt 2004) for birds, and Bradley et al. (2014) and the San Diego County Mammal Atlas (Tremor et al. 2017) for mammals. Sensitive species status is based on CNDDB (CDFW 2024a through c).

3.3 Survey Limitations
The survey results reflect existing environmental conditions at the time of the surveys, which naturally change over time. BBS did not conduct focused surveys or walk transects within the survey area; therefore, the lists of plant and wildlife species include species detected during the surveys but are limited by temporal and seasonal factors. In addition, the surveys were performed during the day, when nocturnal animals were not detectable, and some areas ATTACHMENT M 140 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 15 of private property were inaccessible on foot and, therefore, could only be surveyed visually with the aid of binoculars from accessible vantage points. To account for these survey limitations, sensitive plant and wildlife species that have the potential to occur within the survey area were assessed based on pertinent literature describing the distribution and habitat preference, data from historical species occurrence databases, and the extensive local experience of the BBS biologists.

4.0 RESULTS
The biological reconnaissance surveys and vegetation mapping within the survey area were conducted by BBS biologist Darin Busby on August 10, 2021; Mr. Busby and BBS biologist Brian Parker on November 15, 2022; and Mr. Busby on April 26, 2024 (Table 1).

Table 1. Summary of Biological Surveys and Conditions
Weather
Survey Type Date Time
Temp
(°F)
Wind
(mph)
Clouds
(%) Precip Surveyor
Biological reconnaissance 8/10/21 Start 1300 75 3-5 10 0 D. Busby End 1800 75 1-3 25 0
Biological reconnaissance of 11/15/22 Start 0930 63 0-2 0 0 D. Busby new project features;
verify/update vegetation
mapping
End 1500 65 3-5 0 0
B. Parker
Biological reconnaissance of 4/26/24 Start 0900 57 0-1 100 0 D. Busby new project features;
verify/update vegetation
mapping
End 1330 62 2-5 100 0
In addition, Michael Young, an ISA Certified Arborist from WCA, mapped, documented approximate trunk diameters, and visually inspected Torrey pine and Monterey cypress within and adjacent to proposed project features on August 4, and 11, 2021, as well as reviewed tree data within WCA’s existing tree inventory database for the City (WCA 2021).

The following sections describe the physical characteristics, general botanical and zoological resources, and sensitive biological resources within the project survey area and provide an assessment of the potential for sensitive plant and wildlife species to occur within the project survey area. Attachment 2 contains representative photographs of the survey area.

4.1 General Land Uses
The project site is located within the City of Del Mar, San Diego County, California. The San Dieguito Lagoon is located within and immediately north of the survey area, and the Pacific Ocean is approximately 0.5 mile west of the survey area. The majority of the land uses within the survey area include existing City roads and residential developments. Other land uses within and adjacent to the survey area include State Park lands associated with San Dieguito Lagoon, Crest Canyon Open Space, and pedestrian/bicycle paths along the San Dieguito Lagoon.

4.2 Topography and Soils
ATTACHMENT M 141 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 16 Elevations within the survey area range from approximately 358 feet above mean sea level (amsl) along Crest Road at the southern boundary of the survey area to approximately 8 feet amsl adjacent to San Dieguito Lagoon at the northern boundary of the survey area (USGS 2021).

The online query of the USDA NRCS resulted in eight soil types present within the survey area: Carlsbad-Urban land complex, 2 to 9 percent slopes; Carlsbad gravelly loamy sand, 5 to 9 percent slopes; Corralitos loamy sand, 9 to 15 percent slopes; Lagoons of San Diego area; Loamy alluvial land-Huerhuero complex, 9 to 50 percent slopes, severely eroded; Marina loamy coarse sand, 9 to 30 percent slopes; Terrace escarpments; and Tujunga sand, 0 to 5 percent slopes (USDA 2024; Attachment 1: Figure 4). The following soils are classified as hydric on the USDA Hydric Soils List: Carlsbad gravelly loamy sand, 5 to 9 percent slopes; Corralitos loamy sand, 9 to 15 percent slopes; Lagoons of San Diego area; Loamy alluvial land-Huerhuero complex, 9 to 50 percent slopes, severely eroded; Marina loamy coarse sand, 9 to 30 percent slopes; and Tujunga sand, 0 to 5 percent slopes (USDA 2024).

4.3 Botanical Resources
Botanical resources within the survey area include the vegetation communities, land cover types, and plant species that were observed within the survey area during the biological reconnaissance surveys. A total of three wetland and eight upland vegetation communities and land cover types occur within the survey area, as summarized in Table 2 and described below (Attachment 1: Figures 5a and 5b). A total of 93 plant species were observed within these vegetation communities and land cover types, with 49 species (53 percent) considered native and 44 species (47 percent) considered non-native and/or naturalized into the area (Attachment 3). Sensitive plant species are discussed in Section 4.5, below. In addition, WCA documented and compiled data on a total of 532 trees at risk of experiencing impacts to their health and stability that are within and adjacent to proposed project features (Attachment 1:

Figures 5a and 5b; WCA 2021).

Table 2. Vegetation Communities & Land Cover Types within Survey Area Project Footprint2
Vegetation Community/Land Cover Type1
Trenching/
Ground
Disturbance
Pedestrian
Access/Work
Area
Staging
Area
Survey
Buffer2
Total
Survey
Area2
Sensitive <0.003 0.105 -- 48.905 49.013
Southern willow scrub (63320) -- -- -- 0.266 0.266
Salt marsh (52100) -- 0.013 -- 2.960 2.973
Estuarine (64130) -- -- -- 1.016 1.016
Torrey pine forest (83140) -- 0.008 -- 8.341 8.349
Southern maritime chaparral (37C30) -- 0.055 -- 18.272 18.327 Diegan coastal sage scrub (32500) 0.002 0.009 -- 8.891 8.902 Diegan coastal sage scrub – Rhus-dominated
(32500) <0.001 0.010 -- 6.951 6.962
Diegan coastal sage scrub – revegetated (32500) -- -- -- 1.412 1.412 Diegan coastal sage scrub – disturbed (32500) -- 0.010 -- 0.795 0.805 ATTACHMENT M 142 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 17 Project Footprint2
Vegetation Community/Land Cover Type1
Trenching/
Ground
Disturbance
Pedestrian
Access/Work
Area
Staging
Area
Survey
Buffer2
Total
Survey
Area2
Non-Sensitive 1.301 0.494 0.287 95.925 98.006
Disturbed land (11300) 0.006 0.103 0.118 1.250 1.477
Developed land (12000) 1.295 0.391 0.169 94.675 96.529
TOTAL 1.304 0.599 0.287 144.830 147.019 1
Vegetation categories and numerical codes are from Holland (1986) and Oberbauer (2008) and are listed by Habitats and Tiers within the MSCP.
2 All areas are presented in acres, rounded to the nearest thousandth.

Southern Willow Scrub (63320)
Southern willow scrub is a riparian community comprised of broad-leafed, winter-deciduous trees dominated by shrubby willows (Salix sp.), often in association with other riparian shrubs and emergent tree species. This vegetation community is typically found along drainages and creates dense thickets that lack a substantial understory. Within the survey area, this vegetation community is dominated by arroyo willow (Salix lasiolepis) and occurs between San Dieguito Lagoon and the intersection of Racetrack View Drive and San Dieguito Drive.

Coastal Salt Marsh (32500)
Salt marsh is dominated by a dense cover of perennial, emergent, herbaceous monocots.

Within the survey area, this vegetation community occurs along the fringe of San Dieguito Lagoon and is heavily dominated by pickleweed (Salicornia sp.), fleshy jaumea (Jaumea carnosa), and California seablite (Suaeda californica), with saltgrass (Distichlis spicata), alkali-heath (Frankenia salina), and hottentot-fig (Carpobrotus edulis) along the outer fringe, near the Racetrack View Drive.

Estuarine (64130)
Estuarine habitats consist of permanently flooded areas in semi-enclosed coastal waters where tidal seawater mixes with fresh water from lakes or streams. Salinity and depth can vary substantially based on tidal flows. Vegetation within estuarine habitats generally consists of phytoplankton, algae, and eelgrass (Zostera pacifica). Within the survey area, estuarine habitat occurs where the San Dieguito Lagoon is fully inundated.

Torrey Pine Forest (83140)
Torrey pine forest is an open to moderately dense forest dominated by Torrey pine that can grow to heights of up to 60 feet. Within the survey area, this vegetation community is dominated by a canopy of Torrey pines with an understory of bare ground, leaf litter, and/or a low to moderate density of native shrubs, including lemonade berry (Rhus integrifolia), California sagebrush (Artemisia californica), scrub oak (Quercus berberidifolia), black sage (Salvia mellifera), California buckwheat (Eriogonum fasciculatum), chamise (Adenostoma californica), toyon (Heteromeles arbutifolia), and bushrue (Cneoridium dumosum). Torrey pine forest occurs in open space areas and in narrow strips of land within and adjacent to developed areas along the hills in the northern and central portions of the survey area.

ATTACHMENT M 143 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 18 Southern Maritime Chaparral (37C30)
Southern maritime chaparral is a low, fairly open chaparral that is generally associated with the coastal fog belt and often occurs in areas with sandstone soils. Within the survey area, this vegetation community is dominated by wart-stemmed ceanothus (Ceanothus verrucosus), Eastwood manzanita (Arctostaphylos glandulosa ssp. glandulosa), Del Mar manzanita (Arctostaphylos glandulosa ssp. crassifolia), Torrey pine, scrub oak, and lemonade berry. Southern maritime chaparral occurs in Crest Canyon Open Space and in pockets of land adjacent to developed areas throughout the survey area.

Diegan Coastal Sage Scrub (32500)
Diegan coastal sage scrub consists primarily of low, soft-woody, facultatively droughtdeciduous sub-shrubs and stem- and leaf-succulents up to 3 feet high that are typically found on dry, south-facing slopes or clay-rich soils. Within the survey area, this vegetation community is dominated by California sagebrush, California buckwheat, California encelia (Encelia californica), goldenbush (Isocoma menziesii), big saltbush (Atriplex lentiformis) and four-wing saltbush (Atriplex canescens). This vegetation community occurs primarily within the northern, central, and eastern portions of the survey area. Description of variants of this vegetation community within the survey area are provided below.

Disturbed Diegan coastal sage scrub includes portions of the Diegan coastal sage scrub that contain some kind of disturbance, such as mechanical or natural disturbance, trash, or a high percentage of non-native plants species such as hottentot-fig, golden wreath wattle (Acacia saligna), myoporum (Myoporum laetum), and fennel (Foeniculum vulgare). This vegetation community occurs primarily in the northern portion of the survey area adjacent to the San Dieguito Lagoon and in the central portion of the study area.

Rhus-dominated Diegan coastal sage scrub includes portions of the Diegan coastal sage scrub that are heavily dominated by lemonadeberry. Some portions of this community contain some kind of disturbance, such as mechanical or natural disturbance, trash, or a high percentage of non-native plants species such as hottentot-fig, fennel, and nasturtium (Tropaeolum nasturtium). This vegetation community occurs in patches throughout the survey area.

Revegetated Diegan coastal sage scrub consists of areas where there is evidence that Diegan coastal sage scrub habitat has been revegetated. This vegetation community occurs along the eastern edge of the survey area.

Disturbed Land (11300)
Disturbed land includes areas that retain a soil substrate but have been physically disturbed by previous human activity and are no longer recognizable as a native or naturalized vegetation community. Within the survey area, disturbed land is either dominated by bare ground or non-native species, such as tocalote (Centaurea melitensis), garland daisy (Glebionis coronaria), Russian thistle (Salsola tragus), Indian sweetclover (Melilotus indicus), and cheeseweed (Malva parviflora). Disturbed land occurs in several patches throughout the survey area, such as areas dominated by non-native plants along Crest Road and Racetrack View Drive, and the existing hiking trails within Crest Canyon Open Space.

ATTACHMENT M 144 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 19 Developed Land (12000)
Developed land has been constructed upon or otherwise physically altered to the extent that native vegetation is no longer supported. These areas contain permanent or semi-permanent structures, pavement or hardscape, and landscaped areas that often require irrigation.

Developed land occurs throughout the survey area and includes existing roads, parking lots, residences, and landscaping.

4.4 Zoological Resources - Fauna
A total of 27 wildlife species were detected within and adjacent to the survey area during the biological reconnaissance surveys. The species detected are typical of the habitats present within the survey area and include species such as common side-blotched lizard (Uta stansburiana), red-tailed hawk (Buteo jamaicensis), killdeer (Charadrius vociferus), western gull (Larus occidentalis), mourning dove (Zenaida macroura), bushtit (Psaltriparus minimus), common raven (Corvus corax), house finch (Haemorhous mexicanus), lesser goldfinch (Spinus psaltria), northern mockingbird (Mimus polyglottos), California thrasher (Toxostoma redivivum), house sparrow (Passer domesticus), wrentit (Chamaea fasciata), black phoebe (Sayornis nigricans), Cassin’s kingbird (Tyrannis vociferans), and great egret (Ardea alba).

A pair of osprey (Pandion haliaetus), a CDFW Watch List species, was detected with an active nest in a utility pole adjacent to San Dieguito Lagoon in the northern portion of the survey area on April 26, 2024 (Attachment 1: Figure 5a). The list of wildlife species detected during the biological reconnaissance surveys is presented in Attachment 4.

Sensitive Biological Resources
Sensitive biological resources include sensitive vegetation communities, sensitive plant and wildlife species, wildlife movement corridors and nursery sites, and jurisdictional resources.

The survey area was assessed for sensitive biological resources. Assessments for the potential for occurrence of sensitive biological resources are based upon known ranges; habitat preferences for the species; and historical species occurrence records from the CNDDB (CDFW 2024a), USFWS all species occurrence database (USFWS 2024a), and SanBIOS databases (County 2024). The following sections provide definitions for each of these sensitive biological resources and discuss the sensitive biological resources that are known to occur or have a potential to occur within the survey area.

Sensitive Vegetation Communities
Sensitive vegetation communities are vegetation assemblages, associations, or subassociations that have cumulative losses throughout the region, have relatively limited distribution, support or potentially support sensitive species, or have particular value to other wildlife. Typically, sensitive vegetation communities are considered sensitive whether or not they have been disturbed. Sensitive vegetation communities are regulated by City, state, and federal resource agencies.

Based on these criteria, nine sensitive vegetation communities occur within the survey area (Table 2): southern willow scrub, salt marsh, estuarine, Torrey pine forest, southern maritime ATTACHMENT M 145 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 20 chaparral, and Diegan coastal sage scrub (including the subcategories of disturbed, Rhusdominated, and revegetated).

Sensitive Plant Species
For purposes of this report, sensitive plant species include those that are (1) listed as threatened or endangered or proposed for listing by federal or state agencies; (2) California Rare Plant Ranks (CRPR) List 1, List 2, List 3, or List 4 (CNPS 2024); (3) considered rare, endangered, or threatened by CDFW (CDFW 2024b); (4) considered Narrow Endemic or Covered species per the MSCP (County 1998); and/or (5) considered a Protected Tree per Chapter 23.50 of the Del Mar municipal code.

Focused surveys for sensitive plants were not performed; however, a literature review and database search resulted in 28 sensitive plant species that either were observed during the biological reconnaissance surveys, have occurrence records within 1 mile of the survey area, and/or have a potential to occur within or adjacent to the survey area based upon known ranges and habitat preferences for the species. Attachment 5 provides a table listing each of these 28 sensitive plant species and provides an analysis of their potential to occur within the survey area and proposed project footprint, and the following paragraph provides a summary of these species and their potential to occur. Moreover, of the 532 trees mapped by WCA, two sensitive or protected species were mapped, Monterey cypress and Torrey Pine.

Six sensitive or protected plant species were observed within the survey area, but not within the proposed project footprint, during the biological reconnaissance surveys (Attachment 1:

Figures 5a and 5b). These six species are not expected to occur within the proposed project footprint due to the minimal suitable habitat. Additionally, these conspicuous plants would have been observed if present. These species include:
• Del Mar manzanita (federally endangered; CRPR 1B.1; MSCP-covered) • wart-stemmed ceanothus (CRPR 2B.2; MSCP-covered)
• southwestern spiny rush (CRPR 2B.2)
• sea dahlia (Leptosyne maritima; CRPR 2B.2)
• Torrey pine (CRPR 1B.1; MSCP-covered; Del Mar municipal code Protected Tree) • Monterey cypress (CRPR 1B.2; Del Mar municipal code Protected Tree) In addition to the six sensitive plant species observed in the survey area, an additional 12 sensitive plant species have a moderate to high potential to occur within the survey area; however, within the proposed project footprint they have a low potential or are not expected to occur as the suitable habitat for these species is minimal and the conspicuous plants would have been observed if present (Attachment 5). These species include:
• Nuttall's lotus (Acmispon prostratus)
• Encinitas baccharis (Baccharis vanessae)
• southern tarplant (Centromadia parryi ssp. parryi)
• Orcutt's spineflower (Chorizanthe orcuttiana)
• summer-holly (Comarostaphylis diversifolia ssp. diversifolia) • San Diego sand aster (Corethrogyne filaginifolia var. incana) • Del Mar Mesa sand aster (Corethrogyne filaginifolia var. linifolia) • short-leaved dudleya (Dudleya brevifolia)
ATTACHMENT M 146 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 21 • San Diego barrel cactus (Ferocactus viridescens)
• beach goldenaster (Heterotheca sessiliflora ssp. sessiliflora) • Nuttall’s scrub oak (Quercus dumosa)
• estuary seablite (Suaeda esteroa)
In addition, 10 sensitive plant species are not expected or have a low potential to occur within the survey area and proposed project footprint, as suitable habitat does not exist for these species (Attachment 5). These species include:
• aphanisma (Aphanisma blitoides)
• Orcutt's pincushion (Chaenactis glabriuscula var. orcuttiana) • coast wallflower (Erysimum ammophilum)
• cliff spurge (Euphorbia misera)
• Campbell's liverwort (Geothallus tuberosus)
• San Diego marsh-elder (Iva hayesiana)
• Coulter's salt-marsh daisy (Lasthenia glabrata ssp. coulteri) • coast woolly-heads (Nemacaulis denudata var. denudata) • chaparral ragwort (Senecio aphanactis)
• bottle liverwort (Sphaerocarpos drewiae)
Sensitive Wildlife Species
For purposes of this report, sensitive wildlife species include those that are (1) listed as threatened or endangered or proposed for listing by USFWS or CDFW; (2) designated as “fully protected” by CDFW; (3) considered “species of special concern” by CDFW; (4) considered “taxa to watch” by CDFW (CDFW 2024c); and/or (5) considered MSCPcovered species (County 1998). In addition to the sensitivity criteria described above, most native bird species are covered by the MBTA and CFGC. While these species may not be considered sensitive, effects on breeding and nesting activities are prohibited. As the list of species covered under the MBTA and CFGC is extensive, these species are not included in the sensitive wildlife species table. However, they are addressed further in Sections 5.0 and

6.0, below.

Focused surveys for sensitive wildlife were not performed; however, a literature review and database search resulted in 26 sensitive wildlife species that either were observed/detected during the biological reconnaissance surveys, have occurrence records within 1 mile of the survey area, and/or have a potential to occur within or adjacent to the survey area based upon known ranges and habitat preferences for the species. Attachment 6 provides a table listing each of these 26 sensitive wildlife species and provides an analysis of their potential to occur within the survey area and proposed project footprint, and the following paragraph provides a summary of these species and their potential to occur.

A pair of osprey, a CDFW Watch List species, was detected with an active nest in a utility pole adjacent to San Dieguito Lagoon in the northern portion of the survey area on April 26, 2024 (Attachment 1: Figure 5a). Although this species was observed within the survey area, the nest does not occur within the proposed project footprint.

In addition to the observed osprey, 17 sensitive wildlife species have a moderate to high potential to occur within the survey area; however, these species are either not expected or ATTACHMENT M 147 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 22 have a low potential to occur within the proposed project footprint due to minimal suitable habitat present for these species (Attachment 6). These species include:
• western spadefoot (Spea hammondii)
• San Diegan legless lizard (Anniella stebbinsi)
• coast patch-nosed snake (Salvadora hexalepis virgultea) • red diamond rattlesnake (Crotalus ruber)
• Blainville’s horned lizard (Phrynosoma blainvillii)
• Belding’s orange-throated whiptail (Aspidoscelis hyperythra beldingi) • light-footed Ridgway’s rail (Rallus obsoletus levipes) • California gull (Larus californicus)
• California least tern (Sternula antillarum browni)
• northern harrier (Circus hudsonius)
• coastal California gnatcatcher (Polioptila californica californica) • southern California rufous-crowned sparrow (Aimophila ruficeps canescens) • Belding's savannah sparrow (Passerculus sandwichensis beldingi) • northwestern San Diego pocket mouse (Chaetodipus fallax fallax) • Pacific pocket mouse (Perognathus longimembris pacificus) • San Diego desert woodrat (Neotoma lepida intermedia)
• southern mule deer (Odocoileus hemionus)
In addition, eight sensitive wildlife species are not expected or have a low potential to occur within the survey area and proposed project footprint, as suitable habitat is minimal or does not exist for these species within the survey area and proposed project footprint (Attachment 6). These species include:
• monarch butterfly (Danaus plexippus)
• two-striped garter snake (Thamnophis hammondii)
• western snowy plover
• least Bell's vireo (Vireo bellii pusillus)
• yellow warbler (Setophaga petechia)
• white-tailed kite (Elanus leucurus)
• western mastiff bat (Eumops perotis californicus)
• pocketed free-tailed bat (Nyctinomops femorosaccus)
Conserved Lands and Critical Habitat
The entire project is located within the planning boundaries of the San Diego MSCP, with the northern, eastern, and southern portions of the survey area located within San Dieguito Lagoon MSCP Core Area 13, which protects biological resources within and adjacent to San Dieguito Lagoon and Crest Canyon Open Space (Attachment 1: Figure 3). In addition, the entire project is located within the Coastal Zone and in the City of Del Mar Subarea, which is currently being prepared and not available to the public as it has not been approved or adopted as of the date of this report. The eastern and southern edges of the survey area occur within the City of San Diego’s MHPA, which protect sensitive biological resources and open space covered within the City of San Diego’s MSCP Subarea Plan (City of San Diego 1997; Attachment 1: Figure 3). As outlined in the Environmental Management Element of the City’s Community Plan and the Del Mar Municipal Code, the Floodway Zone and Lagoon Overlay Zone occur in the northern portion of the survey area within and adjacent to the San Dieguito Lagoon; the Open Space Overlay Zone occurs within Crest Canyon Open Space ATTACHMENT M 148 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 23 (also zoned as Public Parkland Zone) in the southern portion of the survey area, as well as within San Dieguito Lagoon, it’s adjacent floodway, and some of the bluffs and steep slopes adjacent to San Dieguito Lagoon in the northern portion of the survey area; and the Bluff, Slope, and Canyon Overlay Zone generally occurs in portions of land throughout the survey area that contain steep slopes exceeding 25 percent grade (City 2021 and 2024; Attachment 1: Figures 3 and 4).

The USFWS designates certain areas as ‘critical habitat’ if they determine that these geographic areas are essential for the conservation and/or recovery of a federally listed threatened or endangered species. Areas designated as critical habitat generally require special management activities to protect the species for which they have been designated.

No critical habitat exists within the survey area; however, critical habitat for the western snowy plover occurs within a preserved and managed area within the San Dieguito Lagoon, approximately 500 feet to the north of the survey area.

Wildlife Movement Corridors
Wildlife corridors are essential to maintain populations of healthy and genetically diverse plant and wildlife species. Wildlife corridors are considered sensitive by local, state, and federal resource and conservation agencies because these corridors allow wildlife to move between adjoining open space areas that are becoming increasingly isolated as open space becomes fragmented from urbanization, rugged terrain, and/or changes in vegetation (Beier and Loe 1992).

Wildlife corridors can be classified as either regional corridors or local corridors. Regional corridors are defined as those linking two or more large areas of natural open space, and local corridors are defined as those allowing resident animals to access critical resources (e.g., food, cover, water) in a smaller area that might otherwise be isolated by some form of urban development (e.g., roads, housing tracts).

Within these wildlife corridors, wildlife movement activities typically fall into one of three movement categories: (1) dispersal (i.e., juvenile animals from natal areas or individuals extending range distributions), (2) seasonal migration, and (3) movement related to home range activities (e.g., foraging for food or water, defending territories, searching for mates).

The majority of the survey area and surrounding lands are classified as urban/developed land. However, intact, undeveloped, native upland vegetation communities (i.e., southern maritime chaparral, Diegan coastal sage scrub, and Rhus-dominated Diegan coastal sage scrub) provide movement opportunities for wildlife and are considered local corridors because they provide access to resources such as food, cover, and water (Attachment 1:

Figures 5a and 5b). In addition, a narrow strip of salt marsh and estuarine habitat that is part of the San Dieguito Lagoon MSCP Core Area occurs along the northeastern edge of the survey area and also provides movement opportunities for wildlife and are considered local corridors.

ATTACHMENT M 149 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 24 Aquatic Resources
Aquatic resources are considered sensitive biological resources and are regulated by the USACE, CDFW, RWQCB, CCC, and/or the City pursuant to Section 404 of the CWA (33 USC 1344), Section 401 of the CWA or the Porter-Cologne Water Quality Control Act, Section 1600 of the CFGC, and the CCA.

A focused aquatic resource delineation was not conducted for this project; however, the survey area was investigated for potentially jurisdictional aquatic resources and these resources were preliminarily mapped during the biological reconnaissance survey. Southern willow scrub, salt marsh, and estuarine habitat in San Dieguito Lagoon along the northern boundary of the survey area are the only potentially jurisdictional aquatic resources that occur in the survey area (Attachment 1: Figure 6). No other potentially jurisdictional drainages, wetlands, or wetland indicators (i.e., wetland vegetation, ordinary high water mark, streambed, stream bank, channel) were observed within the survey area.

5.0 ANALYSIS OF PROJECT EFFECTS
This section describes the potential project effects to sensitive plant and wildlife species, sensitive vegetation communities, potentially jurisdictional aquatic resources, wildlife movement corridors, local policies and ordinances, and adopted conservation plans.

Project effects have the potential to be either direct or indirect. A direct effect is typically an immediate disturbance, alteration, removal, or destruction of biological resources. Examples of direct effects include diverting surface water flows, encroaching into wetlands, clearing vegetation, and “taking” an individual species and/or its associated plant communities, as defined by CESA or FESA. An indirect effect is typically separated spatially or temporally from project activities and causes disturbance or alteration to surrounding biological resources, either as a secondary effect of a direct effect or from the degradation of a biological resource over time. Examples of indirect effects include increased human activity, hydrologic alterations, elevated noise and dust levels, decreased water quality, nighttime lighting, soil compaction, and the introduction of invasive animals (e.g., domestic cats and dogs) and plants.

The project was designed so that the majority of proposed project features occur solely in developed areas and are not located within or adjacent to biological resources; therefore, the analysis provided by individual criterion in this section focuses primarily on the proposed staging, access, and work areas that are located within or adjacent to biological resources.

The project has been designed to avoid and minimize effects to common and sensitive biological resources by using existing City easements, access paths, trails, and roads to the greatest extent feasible.

The majority of the excavations for the trenches, pads, and walls associated with the underground electrical and telecom services will occur solely within and adjacent to developed areas (e.g., adjacent to streets, driveways, and yards) and will not be located within or adjacent to biological resources. However, minimal clearing of native upland vegetation, totaling 0.002 acre to Diegan coastal sage scrub and less than 0.001 acre to Rhus-dominated Diegan coastal sage scrub, will be required prior to trenching in two small, isolated fragments of habitat adjacent to developed areas (Attachment 1: Figures 5a and 5b).

ATTACHMENT M 150 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 25 In addition, trenching within the designated CRZ of a protected tree species will be performed carefully with an AirSpade or hand tools to expose the tree roots under the supervision of a Certified Arborist, if possible.

The majority of the pole and overhead wire removal work and equipment staging associated with the pole and overhead wire removals will occur within developed areas (e.g., adjacent to streets, driveways, and yards), except for some pole and overhead wire removals that will occur in small fragments of disturbed land or native vegetation immediately adjacent to streets, in Crest Canyon Open Space and other sensitive canyon areas, and within and adjacent to San Dieguito Lagoon (Attachment 1: Figures 3 through 6). Minor vegetation trimming and/or trampling of vegetation may occur to ornamental and native vegetation during overland pedestrian egress and regress during pole removal and felling (Attachment 1: Figures 5a and 5b). During pole removal, no vegetation trimming or root disturbance will occur within access routes and work areas with open or low-growing vegetation, and only minor vegetation trimming with no root disturbance will occur within access routes and work areas with dense or tall vegetation. The size of these pedestrian access routes and work areas associated with the proposed project activities will vary depending on the location of each pole and its proximity to existing roads and developed areas, with a maximum width of approximately 3 feet for pedestrian access routes and a maximum radius of 8 feet around poles as a temporary work area.

Appendix G of the CEQA Guidelines includes six criteria that are used to establish whether a proposed project may result in a ‘significant effect.’ A ‘significant effect’ is defined as a “substantial or potentially substantial adverse change in the environment.” Effects on biological resources are evaluated by City staff through an evaluation of these six significance criteria, which are outlined and analyzed later in this section. The significance of effects on biological resources that are present or those with the potential to occur was determined based upon the sensitivity of the resource and the extent of the anticipated impacts. For certain highly sensitive resources (e.g., a federally listed species), any effect would be considered a ‘significant effect’. Conversely, other resources that are of low sensitivity (e.g., species with a large, locally stable population in the County but declining elsewhere) or have a minimal disturbance or effect could sustain some disturbance with a ‘less than significant effect.’ Additionally, individual projects may have a less than significant finding for impacts to upland vegetation based on a limited affected area and minimal habitat value. Factors that contribute to a determination of minimal and low habitat value include small size, isolation from other habitats, lack of sensitive species, disturbance, dominance of non-native plant species, and degraded habitat quality.

5.1 Criterion 1 – Sensitive Plant and Wildlife Species
Would the project have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by CDFW or USFWS? ATTACHMENT M 151 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 26 Criterion 1 Analysis of Effects
Sensitive Plant Species
Six sensitive plant species were observed within the survey area but not within the proposed project footprint. These six species are not expected to occur within the proposed project footprint due to minimal suitable habitat. Additionally, these conspicuous plants would have been observed if present. Therefore, no sensitive plants that were observed within the survey area are expected to be directly or indirectly affected by the project.

An additional 12 sensitive plant species are either not expected or have a low potential to occur within the proposed trenching footprint, pedestrian access routes, and pedestrian work areas; however, they are not expected to be directly or indirectly affected during the trenching and other ground disturbance activities, as vegetation clearing will be minimal and limited to

0.002 acre of Diegan coastal sage scrub and less than 0.001 acre of Rhus-dominated Diegan coastal sage scrub (Attachment 1: Figures 5a and 5b), and the project has been designed to avoid and minimize effects on sensitive plant species by (1) limiting access and minor trimming of vegetation (i.e., if necessary with no root disturbance) in pedestrian access routes and pedestrian work areas to a small footprint within sensitive vegetation communities; (2) limiting the amount of pedestrian trips within work areas and access routes; and (3) implementing specific construction operating procedures (i.e., contractor commitments).

Sensitive Wildlife Species
The only sensitive wildlife species observed within the survey area was the osprey. No direct effects to the pair of osprey are expected. The active osprey nest was observed in a utility pole adjacent to San Dieguito Lagoon in the northern portion of the survey area and outside the proposed project footprint.

An additional 17 sensitive wildlife species are either not expected or have a low potential to occur within the proposed project footprint; however, they are not expected to be directly or indirectly affected during proposed project-related activities as the project has been designed to avoid and minimize effects on sensitive wildlife species by (1) limiting access and minor trimming of vegetation for pedestrian access routes and pedestrian work areas to a small footprint within sensitive vegetation communities; (2) limiting work to short durations in suitable habitat; (3) avoiding work during the general avian breeding season (generally February 1 to August 31) (or performing bird surveys and coordinating with a qualified Biologist as previously described in the project description); and (4) implementing specific construction operating procedures (i.e., contractor commitments).

The only USFWS critical habitat in the project vicinity is for the western snowy plover; it occurs within the San Dieguito Lagoon, approximately 500 feet to the north of the survey area and is an adequate distance from the project. Therefore, no direct or indirect effects would occur on USFWS critical habitat as a result of proposed project-related activities.

Criterion 1 Conclusion
Through project design features and implementation of the implementing specific construction operating procedures (i.e., contractor commitments) and BMPs, the project ATTACHMENT M 152 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 27 would not result in adverse effects to sensitive plant and wildlife species. As such, no additional avoidance, minimization, and/or mitigation measures would be required.

5.2 Criterion 2 – Sensitive Vegetation Communities
Would the project have a substantial adverse effect on any riparian habitat or sensitive natural community identified by local or regional plans, policies, regulations, or by CDFW or USFWS?
Criterion 2 Analysis of Effects
Project implementation would result in direct effects and disturbances to a total of 2.190 acres of vegetation communities and land cover types (Table 3; Attachment 1: Figures 5a and 5b).

The effects and disturbances shown in Table 3 are divided by type of project effect, including (1) trenching and ground disturbance areas with direct removal of vegetation, when present; (2) overland pedestrian access and pedestrian work areas with minor vegetation trampling and/or minor vegetation trimming (i.e., no root disturbance); and (3) temporary staging of equipment with no vegetation removal or disturbance.

Project implementation would result in direct effects and disturbances to a total of 0.108 acre of sensitive vegetation communities, including salt marsh, Torrey pine forest, southern maritime chaparral, Diegan coastal sage scrub, Rhus-dominated Diegan coastal sage scrub, and disturbed Diegan coastal sage scrub (Table 3; Attachment 1: Figures 5a and 5b).

However, of these total effects on sensitive vegetation communities, a total of less than 0.003 acres – 0.002 acre of Diegan coastal sage scrub and less than 0.001 acre of Rhus-dominated Diegan coastal sage scrub – will be directly affected through vegetation removal during trenching and other ground disturbance activities only. Given this impact to less than 0.003 acre is extremely small, reflects a narrow linear strip alongside the disturbed edge of a City road, does not provide habitat for sensitive species, and the impacts would not change the functions and value of the adjacent larger expanse of habitat, these impacts to less than

0.003 acre are considered less than significant. The remaining 0.105 acre of disturbance would occur during pole removal as a result of overland pedestrian access and/or minor trimming of vegetation, if necessary, with no root disturbance within pedestrian access routes and pedestrian work areas. The impacts to 0.105 acre from minor vegetation trampling and trimming would not result in a loss of vegetation/habitat and therefore are considered less than significant. It should be noted that trenching within the designated CRZ of a protected tree species will be performed carefully with an AirSpade or hand tools to expose the tree roots under the supervision of a Certified Arborist, if possible. In addition, the project has been designed to avoid and minimize effects on sensitive vegetation communities by limiting the amount of pedestrian trips within work areas and access routes in sensitive vegetation communities and by implementing the specific construction operating procedures (i.e., contractor commitments).

ATTACHMENT M 153 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 28 Table 3. Proposed Effects and Disturbances to Vegetation Communities & Land Cover Types within Project Footprint
Project Footprint2
Vegetation Community/
Land Cover Type1
Trenching/
Ground
Disturbance
(Vegetation
Removal)
Pedestrian
Access/Work
(Overland Pedestrian
Access/Minor
Vegetation Trimming)
Temporary
Staging
(No Vegetation
Disturbance)
Total
Disturbance2
Sensitive <0.003 0.105 -- 0.108
Salt marsh (52100) -- 0.013 -- 0.013
Torrey pine forest (83140) -- 0.008 -- 0.008
Southern maritime chaparral (37C30) -- 0.055 -- 0.055
Diegan coastal sage scrub (32500) 0.002 0.009 -- 0.011
Diegan coastal sage scrub – Rhusdominated (32500) <0.001 0.010 -- 0.011 Diegan coastal sage scrub –
disturbed (32500) -- 0.010 -- 0.010
Non-Sensitive 1.301 0.494 0.287 2.082
Disturbed land (11300) 0.006 0.103 0.118 0.227
Developed land (12000) 1.295 0.391 0.169 1.855
TOTAL 1.304 0.599 0.287 2.190 1 Vegetation categories and numerical codes are from Holland (1986) and Oberbauer (2008) and are listed by Habitats and Tiers within the MSCP. 2 All areas are presented in acres, rounded to the nearest thousandth.

Criterion 2 Conclusion
Through project design features and implementation of the specific construction operating procedures (i.e., contractor commitments), the project would not result in adverse effects to sensitive vegetation communities. As such, no additional avoidance, minimization, and/or mitigation measures would be required.

5.3 Criterion 3 – Aquatic Resources
Would the project have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the CWA (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling hydrological interruption, or other means? Criterion 3 Analysis of Effects
No significant direct or indirect adverse effects on salt marsh, the only potentially jurisdictional aquatic resource within the proposed project footprint, are expected to result from proposed project-related activities. The project has been designed to avoid and minimize effects on aquatic resources by (1) limiting access and work areas to the poles within and adjacent to the salt marsh to a small footprint with only overland pedestrian access and no vegetation trimming; (2) limiting the amount of pedestrian trips within work areas and access routes; ATTACHMENT M 154 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 29 (3) requiring biological monitoring of work activities; and (4) implementing specific construction operating procedures (i.e., contractor commitments).

Criterion 3 Conclusion
Through project design features and implementation of the specific construction operating procedures (i.e., contractor commitments), the project would not result in adverse effects to aquatic resources. As such, no additional avoidance, minimization, and/or mitigation measures would be required.

5.4 Criterion 4 – Wildlife Movement Corridors
Would the project interfere substantially with the movement of any native resident or migratory fish or wildlife species or within an established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? Criterion 4 Analysis of Effects
No direct or indirect effects on the local wildlife corridors within Crest Canyon Open Space in the southern portion of the survey area or on the salt marsh and estuarine habitats in the San Dieguito Lagoon MSCP Core Area along the northeastern edge of the survey area, are expected to result from proposed project-related activities. The project would not impede wildlife access to, within, or through off-site areas in the San Dieguito Lagoon that may be used for urban wildlife movement, foraging, or breeding. The project has been designed to avoid and minimize effects on wildlife movement corridors by (1) limiting access and minor trimming of vegetation for pedestrian access routes and pedestrian work areas to a small footprint within sensitive vegetation communities; (2) limiting work to short durations in suitable habitat, (3) avoiding work during the general avian breeding season (generally February 1 to August 31); and (4) implementing specific construction operating procedures (i.e., contractor commitments).

Criterion 4 Conclusion
Through project design features and implementation of the specific construction operating procedures (i.e., contractor commitments), the project would not result in adverse effects to wildlife movement corridors. As such, no additional avoidance, minimization, and/or mitigation measures would be required.

5.5 Criterion 5 – Local Policies and Ordinances
Would the project conflict with local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance?
Criterion 5 Analysis of Effects
The entire project is located within the planning boundaries of the City of Del Mar Subarea.

The northern boundary of the survey area occurs within the Lagoon Overlay Zone and the San Dieguito Lagoon MSCP Core Area, and the eastern boundary of the survey buffer occurs within the City of San Diego’s MHPA and Crest Canyon Open Space. As mentioned ATTACHMENT M 155 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 30 previously, the City’s draft Subarea Plan is currently being prepared and not available to the public as it has not been approved or adopted as of the date of this report. However, the project was designed to consider the context of the City’s draft Subarea Plan and to be consistent with CEQA requirements. In addition, the project has been designed to avoid and minimize effects on sensitive biological resources and conserved lands by implementing appropriate BMPs and implementing specific construction operating procedures (i.e., contractor commitments), and by adhering to the policies and guidelines of the MSCP, and Del Mar Municipal Code, and the Land Use Adjacency Guidelines of the City of San Diego’s MSCP Subarea Plan (City of San Diego 1997).

Criterion 5 Conclusion
The project was designed to comply with CEQA and biological resources protection measures provided in other local plans, policies, and ordinances; therefore, the project would not conflict with local policies or ordinances that protect biological resources. As such, no additional avoidance, minimization, and/or mitigation measures would be required.

5.6 Criterion 6 – Adopted Conservation Policies
Would the project conflict with provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan?
Criterion 6 Analysis of Effects
The entire project is located within the planning boundaries of the City of Del Mar Subarea.

The northern boundary of the survey area occurs within the Lagoon Overlay Zone and the San Dieguito Lagoon MSCP Core Area, and the eastern boundary of the survey area occurs within the City of San Diego’s MHPA and Crest Canyon Open Space. As mentioned previously, the City’s draft Subarea Plan is currently being prepared and not available to the public as it has not been approved or adopted as of the date of this report. However, the project was designed to consider the context of the City’s draft Subarea Plan and to be consistent with CEQA requirements. In addition, the project has been designed to avoid and minimize effects on sensitive biological resources and conserved lands by implementing appropriate BMPs and implementing specific construction operating procedures (i.e., contractor commitments), and by adhering to the policies and guidelines of the MSCP, and Del Mar Municipal Code, and the Land Use Adjacency Guidelines of the City of San Diego’s MSCP Subarea Plan (City of San Diego 1997).

Criterion 6 Conclusion
The project was designed to comply with CEQA and biological resources protection measures provided in other local plans, policies, and ordinances; therefore, the project would not conflict with provisions in any local, regional, or state habitat conservation plans. As such, no additional avoidance, minimization, and/or mitigation measures would be required.

6.0 CONCLUSION
ATTACHMENT M 156 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 31 The project has been designed to avoid significant direct and indirect effects on sensitive biological resources by siting the work to occur predominantly within and adjacent to developed areas (e.g., streets, driveways, and residential landscaped yards), with only minimal work within and adjacent to sensitive native habitats (i.e., San Dieguito Lagoon, Crest Canyon Open Space, and other sensitive canyon areas) that may support sensitive biological resources. In addition to the incorporation of specific project design features, implementation of the project includes project-specific construction operating procedures (i.e., contractor commitments) and BMPs during construction activities within and adjacent to sensitive native habitats to assure protection of and avoid significant adverse effects to sensitive biological resources in these areas. Therefore, the project is not expected to result in any significant direct or indirect effects on sensitive biological resources. As such, the project does not meet any of the six exceptions to project exemptions pursuant to the CEQA Guidelines and CEQA Categorical Exemptions Sections 15302(d) - Class 2 - Replacement or Reconstruction and Class 4 Minor Alteration to Land.

Please contact me at [email protected] or 858.334.9508 with any questions or concerns regarding this letter report. Please see Attachment 7 for a summary of the preparers’ qualifications.

Sincerely,
Darin Busby
Principal Biologist

ATTACHMENTS
Attachment 1: Figures
Attachment 2: Representative Photographs
Attachment 3: Plant Species Observed
Attachment 4: Wildlife Species Detected
Attachment 5: Sensitive Plant Species with Potential to Occur Attachment 6: Sensitive Wildlife Species with Potential to Occur Attachment 7: Summary of Preparer’s Qualifications
ATTACHMENT M 157 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 32 7.0 REFERENCES
Beier, P. and Loe, S.
1992 A checklist for evaluating impacts to wildlife movement corridors. Wildlife Society Bulletin 20: 434-440.

Bradley, R.D., L.K. Ammerman, R.J. Baker, L.C. Bradley, J.A. Cook, R.C. Dowler, C.

Jones, D.J. Schmidly, F.B. Stangl, Jr., R.A. Van Den Bussche, and B. Würsig 2014 Revised Checklist of North American Mammals North of Mexico, 2014.

Occasional Papers, Museum of Texas Tech University No. 327. October 2.

Brenzel, K.N.
2012 The New Sunset Western Garden Book. Time Home Entertainment. New York.

Calflora
2024 Information on California plants for education, research and conservation (web application). Berkeley, California: The Calflora Database. Available:
https://www.calflora.org/. (Accessed: April 2024)
California Department of Fish and Wildlife (CDFW)
2024a California Natural Diversity Database (CNDDB). RareFind 5. Commercial Version. Accessed April 2024.
2024b California Natural Diversity Database (CNDDB). Special Vascular Plants, Bryophytes, and Lichens List. April.
2024c California Natural Diversity Database (CNDDB). Special Animals List. April.

California Invasive Plant Council
2024 California Invasive Plant Inventory Database. http://www.cal-ipc.org/paf/.

Accessed April 2024.

California Native Plant Society (CNPS)
2024 Inventory of Rare and Endangered Vascular Plants of California. http://www.rareplants.cnps.org. Accessed April 2024.

Chesser, R. T., S. M. Billerman, K. J. Burns, C. Cicero, J. L. Dunn, B. E. Hernández-Baños, A. W. Kratter, I. J. Lovette, N. A. Mason, P. C. Rasmussen, J. V. Remsen, Jr., D.

F. Stotz, and K. Winker.
2022 Checklist of North American Birds. American Ornithological Society. http://checklist.aou.org/taxa. Accessed April 2024.

City of Del Mar (City)
2001 City of Del Mar Local Coastal Program (LCP) Implementing Ordinances.

September 11.
2021 Community Plan (General Plan). Adopted March 15, 2021. Online edition updated December 7, 2023.
2024 Del Mar Municipal Code of Ordinances. Adopted January 8, 2024. Online content updated April 3, 2024.

ATTACHMENT M 158 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 33 City of San Diego
1997 City of San Diego MSCP Subarea Plan. Prepared by the City of San Diego Community and Economic Development Department.

County of San Diego (County)
1998 Multiple Species Conservation Program Plan (MSCP). August. 2024 SanBIOS GIS Database. Available at: http://www.sangis.org. Accessed April 2024.

Crother, B.I.
2017 Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding, 8th edn. Herpetological Circular 43, Society for the Study of Amphibians and Reptiles, University Heights, Ohio.

Google Earth
2024 Google Earth Version 7.1.2.2041 elevation data. Accessed April 2024.

Holland, R.F.
1986 Preliminary Descriptions of the Terrestrial Natural Communities of California.

State of California, The Resources Agency, Department of Fish and Game, Natural Heritage Division, Sacramento, California.

Jepson Flora Project
2024 Jepson eFlora, https://ucjeps.berkeley.edu/eflora/. Accessed April 2024.

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 California,” Robert F.

Holland, Ph.D., October 1986.

Tremor, S, D. Stokes, W. Spencer, J. Diffendorfer, H. Thomas, S. Chivers, and P. Unitt, (Editors)
2017 San Diego County Mammal Atlas. San Diego Natural History Museum. August 1.

U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) 2024 Soil Survey Staff, Natural Resources Conservation Service, United States. oil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Official Soil Series Descriptions.
http://soils.usda.gov/technical/classification/osd/index.html. Accessed 2024.

U.S. Fish and Wildlife Service (USFWS)
2024a All Species Occurrences GIS Database. Carlsbad Fish and Wildlife Office.

Accessed April 2024.
2024b Critical Habitat Portal. Available at: https://ecos.fws.gov/ecp/report/table/criticalhabitat.html. Accessed April 2024.

U.S. Geological Survey (USGS)
2024 Del Mar 7.5-minute quadrangle. Online version.

ATTACHMENT M 159 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project ________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 34 Unitt, P.
2004 San Diego County Bird Atlas. San Diego Natural History Museum. San Diego, CA.

West Coast Arborists, Inc. (WCA)
2021 City of Del Mar Utility Undergrounding Tree Protection Project. August 12.

ATTACHMENT M 160 October 7, 2024 Item 07
________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 1
Figures
ATTACHMENT M 161 October 7, 2024 Item 07
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CREST CANYON UNDERGROUNDING DISTRICT X1A PROJECT ´ Figure 1 ATTACHMENT M 162 October 7, 2024 Item 07
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ATTACHMENT M 163 October 7, 2024 Item 07
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ATTACHMENT M 164 October 7, 2024 Item 07
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%%%%

CREST RD
15TH ST

LUNETA DR
10TH ST
11TH ST
9TH ST

RECUERDO DR

ORIBIA RD

CAMINO DEL MAR

ZUNI DR
8TH ST

SAN DIEGUITO DR

HOSKA DR

ZAPO ST

VIA ALTA

MAIDEN LN
13TH ST

BALBOA AV E
14TH ST

ORCHID LN
12TH ST

RACETRACK VIEW DR

AVENIDA PRIMAVERA

AMPHITHEATRE DR

RIMINI RD

VAN DYKE AVE

KALAMATH DR

CAROLINA RD

BELLAIRE ST

KLISH WAY

CUCHARA DR

TEWA ST

GATU N ST

FOREST WAY

CULEBRA ST

LOZANA RD

HIGHLAND AVE

NOB AVE

CONDESA DR

UMATILLA DR

DURANGO DR

JIMMY DURANTE BLVD

RUE D'ANTIBES

RUE D'AZUR

RUE MONACO

RUE SAINT RAPHAEL

RUE SAN REMO PLACE MONACO RUE SAINT TROPEZ

ZUNI DR

KLISH WAY

RIM I NI RD

SAN DIEGUITO DR

STRATFORD CT
08TH ST

PLACE SAINT TROPEZ

ORIBIA RD

ORIB IA RDCREST RD
Survey Area
Trenching and Ground Disturbance
Pedestrian Work Area and Access
Staging Area
Soils
Carlsbad gravelly loamy sand, 5 to 9 percent slopes
Carlsbad-Urban land complex, 2 to 9 percent slopes
Chino silt loam, saline, 0 to 2 percent slopes
Corralitos loamy sand, 9 to 15 percent slopes
Lagoon water
Loamy alluvial land-Huerhuero complex, 9 to 50 percent slopes, severely eroded
Marina loamy coarse sand, 2 to 9 percent slopes
Marina loamy coarse sand, 9 to 30 percent slopes
Terrace escarpments
Tidal flats
Tujunga sand, 0 to 5 percent slopes
Slopes
0-15%
%%%
%%%
%%%%
%%%% 15-25%
25-50%
> 50%
0 185 370 ´ Feet
CREST CANYON UNDERGROUNDING DISTRICT X1A PROJECT
Soils, Slopes, and Proposed Project Features
Figure 4
ATTACHMENT M 165 October 7, 2024 Item 07

SAN DIEGUITO DR

GATUN ST

APO ST Z

SAN DIEGUITO DR
T O SP

SERPENTINE DR
RACE

FOREST WAY

TRACK VIEW D R

ZUNI DR

AVENIDA PRIMAVERA

SAN DIEGUITO DR
15TH ST

DR INUZ
ORIBI

SAN DIEGUITO
LAGOON
TP3
TP4
TP5
P62475

ORIBIA RD

VIA ALTA

R DT AA LLM IU

RIMINI RD

TH DR KALAMA

CREST RD

KLISH WAY

AMPHITHEATRE DR

HOSKA DR

KLISH WAY

RUE SAINT RAPHAEL

PLACE MONACO

RUE SAN REMO

RUE MONACO

RUE D'AZUR

RUE SAINT TROPEZ
MATCH TO FIGURE 8a P62453
P62452
P62344
P61736
Pole
P62454
P61735
P62457
P62458
P62459
P161750
P62341J
P62340J
P62837
P199229S

ORIBIA RD
P60707
P62790
P62500
P62004 P60706
P62789
P62104 P60659 CREST CANYON

OPEN SPACE
P61920
P62788
P62466 Pedestrian access will
follow existing hiking trail
P60657
# P62787
#P199281
Detail Area
Trenchi
ground di
ng and
sturbance to

DEL MAR SAN DIEGO
P62463
P62036
P61876
P63530
P61491
P62107
P62108
P208064 ATT Pole

PLACE SAINT TROPEZ
ATTACHMENT M 167 October 7, 2024 Item 07

TP1

SAN DIEGUITO DR
Survey Area
Project Features
SDG&E - Poles to Stay
SDG&E - Poles to be Removed
Telecom - Poles to be Removed
Anchor to be Removed
Trenching and Ground Disturbance
Pedestrian Work Area and Access
Staging Area
Potential USACE, RWQCB, CDFW, and CCC Jurisdiction
Southern Willow Scrub
Estuarine
Salt Marsh

RACETRACK VIEW DR

SAN DIEGUITO DR

SERPENTINE DR
TP5
TP4
TP3
TP2
Pole
P62479
P62481
P62480
P62475
P62477
P62476
P932882
Existing Potential Aquatic Resources and Proposed Project Features CREST CANYON UNDERGROUNDING DISTRICT X1A PROJECT
0 75 150 ´ Feet Figure 6
ATTACHMENT M 168 October 7, 2024 Item 07
________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 2
Representative Photographs
ATTACHMENT M 169 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Attachment 2. Representative Photographs
Photograph 1. Telecom Pole 3
in disturbed Diegan coastal
sage scrub and anchor pole in
coastal salt marsh in San
Dieguito Lagoon adjacent to
San Dieguito Drive (View
northwest, 4/26/24).

Photograph 2. Telecom Pole 4
and proposed access route in
coastal salt marsh in San
Dieguito Lagoon adjacent to
San Dieguito Drive (View
northwest, 11/15/22).

ATTACHMENT M 170 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Photograph 3. Utility pole
P62470 on a steep slope with
Rhus-dominated Diegan
coastal sage scrub that is also
heavily dominated by
nonnative freeway iceplant
(View south, 4/26/24).

Photograph 4. Proposed
pedestrian access route from
Oribia Road to utility pole
P62470 on a steep slope with
Diegan coastal sage scrub
(View north, 4/26/24).

ATTACHMENT M 171 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Photograph 5. Sea dahlia, a
CRPR 2B.2 sensitive plant, on
a steep slope with Rhusdominated Diegan coastal
sage scrub near utility pole
P62470 (View east, 4/26/24).

Photograph 6. Proposed
pedestrian access route from
Oribia Road to utility pole
P62452 on a steep slope with
disturbed land and southern
maritime chaparral (View west,
8/10/21).

ATTACHMENT M 172 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Photograph 7. Utility pole
P62454 in developed land
adjacent to Oribia Road on a
steep slope with disturbed
land and southern maritime
chaparral (View west,
8/10/21).

Photograph 8. Utility pole
P62206 and anchors in
disturbed Diegan coastal sage
scrub adjacent to Avenida
Primavera (View south,
4/26/24).

ATTACHMENT M 173 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Photograph 9. Utility pole
P62789 and anchor within
disturbed land and surrounded
by southern maritime
chaparral in Crest Canyon
Open Space (View south,
8/10/21).

Photograph 10. Utility pole
P62788 within southern
maritime chaparral in Crest
Canyon Open Space (View
east, 8/10/21).

ATTACHMENT M 174 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Photograph 11. Utility pole
P62787 and anchor and
proposed pedestrian access
route within disturbed land and
surrounded by southern
maritime chaparral in Crest
Canyon Open Space (View
south, 8/10/21).

Photograph 12. Wart-stemmed
ceanothus, a CRPR 2B.2 and
MSCP-covered sensitive plant,
within southern maritime
chaparral and adjacent to a
proposed pedestrian access
route in disturbed land in Crest
Canyon Open Space between
utility poles P62788 and
P62789 (View north, 8/10/21).

ATTACHMENT M 175 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Photograph 13. Utility pole
P99281 and anchor and
proposed pedestrian access
route within southern maritime
chaparral in Crest Canyon
Open Space (View northeast,
8/10/21).

Photograph 14. Proposed
staging area along 15th Street
within disturbed land adjacent
to utility poles P60298 and
P60299 (View west, 4/26/24).

ATTACHMENT M 176 October 7, 2024 Item 07
________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 3
Plant Species Observed
ATTACHMENT M 177 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Attachment 3. Plant Species Observed
Family Scientific Name* Common Name
Vegetation
Community/Land Cover
Type1
Agavaceae Agave americana* century plant DH, DEV
Agave attenuata* foxtail agave DEV
Yucca schidigera Mohave yucca TP, SMC
Aizoaceae Carpobrotus edulis* freeway iceplant CSS-D, SM, DEV, DIST Mesembryanthemum
nodiflorum* slender-leaved iceplant CSS-D, DEV, DIST
Altingiaceae Liquidambar styraciflua* sweetgum DEV, DIST Anacardiaceae Malosma laurina laurel sumac CSS, CSS-RD
Rhus integrifolia lemonade berry CSS, CSS-D, CSS-RD,

SMAC, TP
Schinus molle* Peruvian pepper tree DEV, DIST
Schinus terebinthifolius* Brazilian pepper tree DEV, DIST Apiaceae Conium maculatum* poison-hemlock CSS-D, DIST
Foeniculum vulgare* fennel CSS-D, DIST
Araliaceae Hedera helix* English ivy DEV
Arecaceae Phoenix canariensis* Canary Island date palm DEV Phoenix roebelenii* pygmy date palm DEV
Syagrus romanzoffiana* queen palm DEV
Asteraceae Artemisia californica California sagebrush CSS, CSS-D, CSS-R, TP Artemisia dracunculus tarragon CSS
Baccharis pilularis coyote brush CSS, CSS-D, CSS-RD
Baccharis salicifolia mule fat SWS
Centaurea melitensis* tocalote CSS, CSS-D, DIST
Deinandra fasciculata fascicled tarplant CSS, CSS-D
Encelia californica California encelia CSS, CSS-R
Encelia farinosa2 brittlebush CSS
Erigeron bonariensis* flax-leaf fleabane DEV, DIST
Gazania linearis* treasure flower DEV
Glebionis coronaria* garland daisy CSS, CSS-D, DEV, DIST Hazardia squarrosa var.
grindelioides saw-toothed goldenbush CSS, CSS-D, TP
Heterotheca grandiflora telegraph weed CSS
Isocoma menziesii goldenbush CSS, DH
Leptosyne maritima sea dahlia CSS, CSS-RD
Jaumea carnosa fleshy jaumea SM
Pluchea sericea arrow weed CSS-D
Stephanomeria diegensis San Diego wreath-plant CSS, CSS-D, TP ATTACHMENT M 178 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Family Scientific Name* Common Name
Vegetation
Community/Land Cover
Type1
Boraginaceae Echium candicans* pride-of-Madeira CSS-D, DEV Eriodictyon crassifolium felt-leaf yerba santa TP
Phacelia ramosissima branching phacelia CSS, CSS-D
Brassicaceae Brassica nigra* black mustard CSS, CSS-D
Hirschfeldia incana* short-pod mustard DIST
Raphanus sativus* wild radish CSS, CSS-D, DIST
Cactaceae Cylindropuntia prolifera coastal cholla CSS
Opuntia ficus-indica* Indian-fig DEV
Opuntia littoralis coastal prickly pear CSS
Capparaceae Peritoma arborea bladderpod CSS
Chenopodiaceae Atriplex lentiformis big saltbush CSS
Atriplex canescens four-wing saltbush CSS, CSS-R
Salicornia pacifica Pacific pickleweed SM
Suaeda californica California seablite SM
Crassulaceae Aeonium arboreum* tree aeonium DEV
Crassula ovata* jade plant SMAC, DIST, DEV
Dudleya pulverulenta chalk-lettuce CSS
Cupressaceae Hesperocyparis macrocarpa2 Monterey Cypress DEV Ericaceae Arctostaphylos glandulosa ssp.
crassifolia Del Mar manzanita SMAC
Ericaceae Xylococcus bicolor mission manzanita TP
Euphorbiaceae Croton californicus California croton CSS Euphorbia ingens* candelabra cactus DEV
Ricinus communis* castor bean CSS--D, DEV, DIST
Fabaceae Acacia retinodes* everblooming acacia DEV
Acacia saligna* golden wreath wattle CSS-D
Acacia sp.* acacia DEV, DIST
Acmispon glaber deerweed CSS, CSS-D, CSS-R
Quercus berberidifolia scrub oak TP, SMAC
Frankeniaceae Frankenia salina alkali-heath CSS, CSS-D, SM Juncaceae Juncus acutus ssp. leopoldii southwestern spiny rush SM, CSS-D Lamiaceae Lavandula sp.* lavender DEV
Salvia apiana white sage CSS, DEV
Salvia leucophylla purple sage DEV
Salvia mellifera black sage CSS, CSS-R, TP
Salvia munzii Munz's sage DEV
Liliaceae Aloe arborescens* candelabra aloe DIST
Aloe sp.* aloe DEV
ATTACHMENT M 179 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Family Scientific Name* Common Name
Vegetation
Community/Land Cover
Type1
Musaceae Musa sp.* banana DEV
Myrtaceae Callistemon citrinus* common bottle brush DEV Eucalyptus sideroxylon* red iron bark DEV
Eucalyptus sp.* eucalyptus DEV, DIST
Pinaceae Pinus torreyana ssp. torreyana Torrey pine SMAC, CSS, CSS-D,

CSS-R, TP, DEV
Platanaceae Platanus occidentalis* American sycamore DEV Plumbaginaceae Limonium perezii* statice DEV
Poaceae Avena fatua* wild oats CSS, CSS-D, DIST
Bromus diandrus* common ripgut grass CSS, CSS-D, DIST
Distichlis spicata saltgrass SM
Pennisetum setaceum* purple fountain grass DEV, DIST
Pennisetum sp.* fountain grass DEV
Polygonaceae Eriogonum fasciculatum California buckwheat CSS, CSS-R, CSS-D, TP Rhamnaceae Ceanothus verrucosus wart-stemmed ceanothus CSS, TP, SMAC Rhamnus crocea spiny redberry CSS, SMAC
Rosaceae Adenostoma fasciculatum chamise TP, SMAC
Heteromeles arbutifolia toyon CSS, TP, CSS-RD
Rutaceae Cneoridium dumosum bushrue TP
Salicaceae Salix lasiolepis arroyo willow SWS
Scrophulariaceae Myoporum laetum* myoporum CSS-D
Solanaceae Datura wrightii jimson weed CSS, DIST
Tropaeolaceae Tropaeolum majus* nasturtium CSS-D, CSS-RD, DEV, DIST
* Non-native species
1 Vegetation Community/Land Cover Type
SWS = Southern willow scrub CSS-RD = Diegan coastal sage scrub – Rhus-dominated SM = Salt marsh CSS-R = Diegan coastal sage scrub – revegetated TP = Torrey pine forest CSS-D = Diegan coastal sage scrub – disturbed SMAC = Southern maritime chaparral DIST = Disturbed land CSS = Diegan coastal sage scrub DEV = Developed land
2 Native to California but not to this region
ATTACHMENT M 180 October 7, 2024 Item 07
________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 4
Wildlife Species Detected
ATTACHMENT M 181 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________ ________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Attachment 4. Wildlife Species Detected
Family Scientific Name Common Name
Vegetation
Community/Land
Cover Type1
Accipitridae Buteo jamaicensis red-tailed hawk TP, FO
Aegithalidae Psaltriparus minimus bushtit DEV, CSS
Anatidae Anas platyrhynchos mallard E, FO
Ardeidae Ardea alba great egret SM, FO
Charadriidae Charadrius vociferus killdeer SM, CSS, DIST Columbidae Columba livia rock pigeon DEV, FO
Zenaida macroura mourning dove CSS, DEV
Corvidae Corvus corax common raven DEV, CSS, SMAC, FO
Fringillidae Haemorhous mexicanus house finch CSS, DEV
Spinus psaltria lesser goldfinch CSS, CSS-R
Laridae Larus occidentalis western gull SM, FO
Mimidae Mimus polyglottos northern mockingbird CSS
Toxostoma redivivum California thrasher CSS
Pandionidae Pandion haliaetus* osprey CSS, FO
Passerellidae Junco hyemalis dark-eyed junco DEV
Pipilo maculatus spotted towhee CSS, CSS-RD, TP
Melozone crissalis California towhee CSS, CSS-RD, TP
Melospiza melodia song sparrow CSS, CSS-R, DEV
Passeridae Passer domesticus house sparrow CSS, DEV
Phrynosomatidae Uta stansburiana common side-blotched
lizard DEV, CSS, SMAC
Polioptilidae Polioptila caerulea blue-gray gnatcatcher SMAC Scolopacidae Numenius phaeopus whimbrel SM
Tringa semipalmata willet SM
Sylviidae Chamaea fasciata wrentit CSS, CSS-RD
Trochilidae Calypte anna Anna's hummingbird CSS, SMAC, DEV Tyrannidae Sayornis nigricans black phoebe CSS, DEV
Tyrannus vociferans Cassin's kingbird CSS
* Sensitive Species
1 Vegetation Community/Land Cover Type
SWS = Southern willow scrub CSS-RD = Diegan coastal sage scrub – Rhus-dominated SM = Salt marsh CSS-R = Diegan coastal sage scrub – revegetated TP = Torrey pine forest CSS-D = Diegan coastal sage scrub – disturbed SMAC = Southern maritime chaparral DIST = Disturbed land CSS = Diegan coastal sage scrub DEV = Developed land
FO = Fly over
ATTACHMENT M 182 October 7, 2024 Item 07
________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 5
Sensitive Plant Species with Potential to Occur
ATTACHMENT M 183 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Attachment 5. Sensitive Plant Species with Potential to Occur Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
Nuttall's acmispon
(Acmispon
prostratus)
CRPR 1B.1;
MSCP
Annual herb. Blooms
Mar-Jun. Coastal dunes,
coastal sage scrub. Elev
0-98ft.

Moderate Low
Coastal sage scrub with sandy soils in the survey area is suitable for this species and the nearest record is in dune habitat approximately 0.85 mile to the east (CDFW 2024a).

There is a low potential for the species to occur in the small project footprint; however, any previously undetected
individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.
aphanisma
(Aphanisma
blitoides)
CRPR 1B.2;
MSCP;
NE
Annual herb. Blooms
Mar-Jun. Coastal bluff
scrub, coastal dunes,
coastal sage scrub. Elev
0-656ft.

Not
Expected Low
Coastal sage scrub with sandy soils in the survey area is suitable for this species but the only records of this species within 1 mile of the survey area date to 1894 and 1936
(CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.

Del Mar manzanita
(Arctostaphylos
glandulosa ssp.
crassifolia)
FE;
CRPR 1B.1;
MSCP
Evergreen shrub. Blooms
Dec-Jun. Chaparral. Elev
0-328ft.

Observed Not
Expected
Several individuals were mapped within southern maritime chaparral on the slope between Crest Road and Oribia Road and suitable habitat occurs throughout the survey area. No individuals were observed within the project footprint. This species is not expected within the small project footprint as it is a moderate-sized, conspicuous shrub and any individuals would have been observed. Any previously undetected
individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.

Encinitas baccharis
(Baccharis
vanessae)
FT;
SE;
CRPR 1B.1;
MSCP;
NE
Deciduous shrub. Blooms
Aug-Nov. Maritime
chaparral. Elev 260-
2,920ft.

Moderate Not
Expected
Southern maritime chaparral in the survey area is suitable for this species but the only record of this species within 1 mile of the survey area is a 1979 collection specimen that lacks specific location data (CDFW 2024a). This species is not expected within the small project footprint as it is a moderatesized, conspicuous shrub and any individuals would have been observed. Any previously undetected individuals will be avoided or not significantly impacted if vegetation trimming is necessary.

ATTACHMENT M 184 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
wart-stemmed
ceanothus
(Ceanothus
verrucosus)
CRPR 2B.2;
MSCP
Evergreen shrub. Blooms
Jan-Apr. Chaparral. Elev
25-2,165ft.

Observed Not
Expected
Several individuals were mapped in the southern maritime chaparral on the slope between Crest Road and Oribia Road in the survey area. None were observed within the project footprint. This species is not expected within the small project footprint as it is a moderate-sized, conspicuous shrub and any individuals would have been observed. Any previously undetected individuals will be avoided or not significantly impacted if vegetation trimming is necessary.
southern tarplant
(Centromadia parryi
ssp. australis)
CRPR 1B.1
Annual herb. Blooms
May-Nov. Grasslands
and freshwater wetlands,
vernal pools. Elev 0-
430ft.

High Low
No grasslands, freshwater marsh, or vernal pools are
present; however, a 2004 record of this species exists within the salt marsh and adjacent dry disturbed slopes throughout the San Dieguito Lagoon immediately north of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any
previously undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.

Orcutt's pincushion
(Chaenactis
glabriuscula var.
orcuttiana)
CRPR 1B.1
Annual herb. Blooms
Jan-Aug. Sandy soils in
coastal dunes, coastal
bluff scrub. Elev 0-230ft.

Low Low
No coastal bluff scrub or dunes are present, although coastal sage scrub with sandy soils in the survey area is suitable for this species and the nearest record of this species is from a sandy area southeast of the intersection of Torrey Pines Road and Carmel Valley Road, 1 mile to the south (CDFW
2024a). There is a low potential for the species to occur in the small project footprint; however, any previously
undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.

ATTACHMENT M 185 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
Orcutt's spineflower
(Chorizanthe
orcuttiana)
FE;
SE;
CRPR 1B.1
Annual herb. Blooms
Mar-May. Sandy
openings in chaparral,
coastal sage scrub,
closed-cone coniferous
forest. Elev 130-460ft.

Moderate Low
Coastal sage scrub, chaparral, and Torrey pine forest in the survey area is suitable for this species and several records of this species exist within the Crest Canyon Open Space approximately 300 feet to the east of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously
undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.
summer-holly
(Comarostaphylis
diversifolia ssp.
diversifolia)
CRPR 1B.2
Evergreen shrub. Blooms
Apr-Jun. Chaparral. Elev
100-2,690ft.

Moderate Low
Southern maritime chaparral in the survey area is suitable for this species and the nearest record of this species is from the Crest Canyon Open Space Park approximately 400 feet east of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance in suitable habitat is proposed.

San Diego sand
aster
(Corethrogyne
filaginifolia var.
incana)
CRPR 1B.1
Perennial herb. Blooms
Jun-Sep. Coastal sage
scrub. Elev 65-460ft.

Moderate Low
Suitable coastal sage scrub in the survey area is suitable for this species and the nearest record of this species is a 1994 observation on the southern edge of the lagoon
approximately 250 feet east of the survey area (CDFW
2024a). There is a low potential for the species to occur in the small project footprint; however, any previously
undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.

Del Mar Mesa sand
aster
(Corethrogyne
filaginifolia var.
linifolia)
CRPR 1B.1;
MSCP
Perennial herb. Blooms
May-Sep. Coastal sage
scrub and chaparral. Elev
0-425ft.

High Low
Coastal sage scrub and chaparral in the survey area is
suitable for this species and several records of this species exist within 1 mile of the survey area, including several in the Crest Canyon Open Space that overlap with the southern
portion of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance in suitable habitat is proposed.

ATTACHMENT M 186 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
short-leaved
dudleya
(Dudleya brevifolia)
SE;
CRPR 1B.1;
MSCP;
NE
Perennial herb. Blooms
Apr-May. Sandstone,
openings in maritime
chaparral, coastal sage
scrub. Elev 95-820ft.

Moderate Low
Suitable maritime chaparral and coastal sage scrub in the survey area is suitable for this species and several records of this species exist within 1 mile of the survey area, including in the Crest Canyon Open Space approximately 700 feet east of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance in suitable habitat is proposed.
coast wallflower
(Erysimum
ammophilum)
CRPR 1B.2;
MSCP
Perennial herb. Blooms
Feb-Jun. Coastal dunes.

Elev 15-330ft.

Low Low
Coastal sage scrub with sandy soils in the survey area is suitable for this species and several records of this species exist in Crest Canyon Open Space within 200 feet of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.
cliff spurge
(Euphorbia misera) CRPR 2B.2
Shrub. Blooms Dec-Aug.

Rocky areas in coastal
bluff scrub and coastal
sage scrub. Elev 0-
1,610ft.

Low Not
Expected
The coastal sage scrub in the survey area is suitable for this species but the only record of this species within 1 mile of the survey area is an 1888 collection that lacks specific location information (CDDFW 2024a). This species is not expected within the small project footprint as it is a moderate-sized, conspicuous shrub and any individuals would have been
observed. Any previously undetected individuals will be avoided or not significantly impacted as no ground
disturbance and minimal trimming in suitable habitat is proposed.

ATTACHMENT M 187 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
San Diego barrel
cactus
(Ferocactus
viridescens)
CRPR 2B.1;
MSCP
Stem succulent. Blooms
May-Jun. Found in sandy
or gravelly soils in
chaparral, coastal sage
scrub, grassland. Elev
25-1,245ft.

Moderate Not
Expected
Coastal sage scrub and chaparral within the Crest Canyon Open Space in the southern portion of the survey area is suitable for this species and There are database records of this species in the Crest Canyon Open Space approximately

0.25 mile to the west of the survey area (CDFW 2024a). This species is not expected within the small project footprint as it is a conspicuous cactus that would have been observed if present. Any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance in suitable habitat is proposed.

Campbell's liverwort
(Geothallus
tuberosus)
CRPR 1B.1
Ephemeral bryophyte.

Clay soils in coastal
scrub (mesic), vernal
pools. Elev 33-1969 ft.

Not
expected
Not
Expected
Coastal sage scrub within the survey area lacks suitable mesic soils or vernal pools. There is a record of this species approximately 0.25 mile south of the survey area (CDFW
2024a).

Monterey cypress
(Hesperocyparis
macrocarpa)
CRPR 1B.2
(in native
range);
Protected
Tree (Del Mar
municipal
code)
Coniferous, evergreen
tree. Native only to
Cypress Point and Point
Lobos in Carmel, Ca.

Naturalized, planted as
an ornamental species
outside its range. Elev 0-
150 ft.

Observed Not
Expected
Species occurs as an ornamental, landscape species
throughout survey area and adjacent to project footprint. This species is not expected within the small project footprint as it would have been observed if present. Any previously
undetected individuals will be avoided or not significantly impacted as only minimal trimming and/or root disturbance is proposed.
beach goldenaster
(Heterotheca
sessiliflora ssp.
sessiliflora)
CRPR 1B.1
Perennial herb. Blooms
Mar-Dec. Coastal dunes,
chaparral, coastal sage
scrub. Elev 15-5,215ft.

Moderate Low
Coastal sage scrub and chaparral with sandy soils in the survey area is suitable for this species and the nearest record of this species is west of Lozana Road, approximately 500 feet east of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance in suitable habitat is proposed.

ATTACHMENT M 188 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
San Diego marshelder (Iva
hayesiana)
CRPR 2B.2
Perennial herb. Blooms
Apr-Oct. Marshes,
playas. Elev 0-2,885ft.

Low Not
Expected
The salt marsh habitat along San Dieguito Lagoon is only marginally suitable. There is a 1994 record of this species in a brackish/freshwater marsh approximately 1 to 1.5 mile northeast of the survey area (CDFW 2024a). This species is not expected within the small project footprint as it is a moderate-sized perennial that would have been observed if present. Any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance and minimal trimming in suitable habitat is proposed.
southwestern spiny
rush
(Juncus acutus ssp.
leopoldii)
CRPR 4.2
Perennial, rhizomatous
herb. Blooms May-Jun.

Coastal seeps,
meadows, salt-marsh,
dunes. Elev 0-3,115ft.

Observed Not
Expected
This species was observed in the salt marsh and disturbed coastal sage scrub along the fringes of San Dieguito Lagoon in the northeastern portion of the survey area; however, this species is not expected within the small project footprint as it is a conspicuous plant that would have been observed if present. Any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance and minimal trimming in suitable habitat is proposed.

Coulter's salt-marsh
daisy
(Lasthenia glabrata
ssp. coulteri)
CRPR 1B.1
Annual herb. Blooms
Feb-Jun. Coastal salt
marsh, playas, vernal
pools. Elev 0-3,640ft.

Low Low
Salt marsh habitat is limited to the edge of the San Dieguito Lagoon in northeastern edge of the survey area is suitable for the species but the only record of this species within 1 mile of the survey area is a 1999 collection from the east end of San Dieguito Lagoon, approximately 0.25 mile east of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.

ATTACHMENT M 189 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
sea dahlia
(Leptosyne
maritima)
CRPR 2B.2
Perennial herb. Blooms
Mar-May. Coastal sage
scrub. Elev 15-625ft.

Observed Not
Expected
Several individuals were observed in coastal sage scrub in the central portion of the survey area and numerous records of this species exist within 1 mile of the survey area, including one in the Crest Canyon Open Space near Oribia Road in
the southern portion of the survey area (CDFW 2024a). This species is not expected within the small project footprint as it is a moderately-sized perennial that would have been
observed if present. Any previously undetected individuals will be avoided or not significantly impacted as no ground disturbance and minimal trimming in suitable habitat is proposed.
coast woolly-heads
(Nemacaulis
denudata var.
denudata)
CRPR 1B.2
Annual herb. Blooms
Apr-Sep. Coastal dunes.

Elev 0-260ft.

Not
expected
Not
Expected
Not expected in the survey area or project footprint as no coastal dunes are present. The only record of this species within 1 mile of the survey area dates to 1989 and lacks specific location data (CDFW 2024a).

Torrey pine
(Pinus torreyana
ssp. torreyana)
CRPR 1B.2;
MSCP;
Protected
Tree (Del Mar
municipal
code)
Tree. Chaparral and
closed-cone pine forest.

Elev 0-590ft.

Observed Not
Expected
Dominant species in the Torrey pine forest and scattered throughout southern maritime chaparral and developed land in survey area. Several individuals occur adjacent to the project footprint; however, this species is not expected within the small project footprint as it would have been observed if present. Any previously undetected individuals will be
avoided or not significantly impacted as only minimal
trimming and/or root disturbance is proposed.

Nuttall's scrub oak
(Quercus dumosa) CRPR 1B.1
Evergreen shrub. Blooms
Feb-Apr. Sandy or clay
loam soils associated
with chaparral and
coastal sage scrub. Elev
45-6,855ft.

High Low
The coastal sage scrub and southern maritime chaparral
within survey area are suitable for this species and numerous records of this species within 1 mile of the survey area, including one in the Crest Canyon Open Space in the
southern portion of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be avoided or not significantly impacted as no ground
disturbance and only minimal trimming in suitable habitat is proposed.

ATTACHMENT M 190 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Species Name Status Habitat Description Survey
Area
Project
Footprint
Justification
chaparral ragwort
(Senecio
aphanactis)
CRPR 2B.2
Annual herb. Blooms
Jan-Apr. Alkaline flats,
dry open rocky areas in
coastal sage scrub and
foothill woodlands. Elev
50-3,905ft.

Low Low
Coastal sage scrub within the survey area is suitable for the species but the only record of this species within 1 mile dates to 1984 and lacks specific location data (CDFW 2024a).

There is a low potential for the species to occur in the small project footprint; however, any previously undetected
individuals will be avoided or not significantly impacted as no ground disturbance in suitable habitat is proposed.
bottle liverwort
(Sphaerocarpos
drewiae)
CRPR 1B.1
Ephemeral bryophyte.

Shaded, moist areas in
coastal sage scrub and
chaparral. Elev unknown.

Not
expected
Not
Expected
This species is not expected in the survey area and small project footprint as suitable mesic soils or vernal pools are not present. There is a record of this species approximately

0.2 mile south of the survey area (CDFW 2024a). Any
previously undetected individuals will be avoided or not significantly impacted as no ground disturbance and only minimal trimming in suitable habitat is proposed.
estuary seablite
(Suaeda esteroa) CRPR 1B.2
Perennial herb. Blooms
May-Oct. Coastal salt
marsh. Elev 0-395ft.

High Low
Salt marsh is limited to the edge of the San Dieguito Lagoon in northeastern edge of the survey area is suitable for the species and a record of this species occurs immediately northeast of the survey area (CDFW 2024a). There is a low potential for the species to occur in the small project footprint; however, any previously undetected individuals will be
avoided or not significantly impacted as no ground
disturbance in suitable habitat is proposed.

ATTACHMENT M 191 October 7, 2024 Item 07
__________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109

STATUS CODES
Federal
FE = Federal-listed endangered species
FT = Federal-listed threatened species
State
SE = State-listed endangered species
California Native Plant Society Rare Plant Ranking (CRPR) 1B = Species rare, threatened, or endangered in California and elsewhere. These species are eligible for state listing.
2B = Species rare, threatened, or endangered in California but more common elsewhere. These species are eligible for state listing.
3 = Lack the necessary information to assign them to one of the other ranks or to reject them. Many of these species are eligible for state listing.
4 = Watch list for species of limited distribution. These species need to be monitored for changes in the status of their populations.
.1 = Species seriously threatened in California (over 80% of occurrences threatened; high degree and immediacy of threat)
.2 = Species fairly threatened in California (20-80% occurrences threatened; moderate degree and immediacy of threat)
Multiple Species Conservation Program
MSCP = MSCP-covered species
NE = MSCP Narrow Endemic Species
ATTACHMENT M 192 October 7, 2024 Item 07
__________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 6
Sensitive Wildlife Species with Potential to Occur
ATTACHMENT M 193 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Attachment 6. Sensitive Wildlife Species with Potential to Occur Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
Invertebrates
monarch butterfly
(Danaus plexippus)
(overwinteri
ng sites)
FPE
Uses a wide variety
of habitats, including
urban areas.

Overwintering occurs
in several species of
gum and pine trees.

Host plant is
milkweed (Asclepias
sp.)
Low Not
Expected
No host plants were observed during the biological
survey. Numerous suitable gum and pine trees for
overwintering occur in the survey area; however, this
species is not expected in the small project footprint
as no suitable overwintering trees exists. There is a
historic record of monarchs overwintering in gum and
Torrey pine trees west of Crest Road in the southern
portion of the survey area; however, no overwintering
has been observed at the site since 1998 (CDFW
2024a, Xerxes Society for Invertebrate Conservation
2024).

Amphibians
western spadefoot
(Spea hammondii)
Proposed
FT;
SSC
Breeds in temporal
pools and slowmoving sections of
streams. Washes,
river floodplains,
alluvial fans, playas,
alkali flats, temporary
ponds, vernal pools,
mixed woodlands,
grasslands, coastal
sage scrub, and
chaparral.

Moderate Not
Expected
The Diegan coastal sage scrub and southern maritime
chaparral in the southern portion of the survey area is moderately suitable for this species and one record of
this species exists adjacent to and east of the survey
area (CDFW 2024a); however, this species is not
expected in the small project footprint as no suitable
breeding habitat exists and no ground disturbance in
suitable habitat is proposed.

ATTACHMENT M 194 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
Reptiles
San Diegan legless
lizard
(Anniella stebbinsi)
SSC Found in leaf litter
and loose soil on
beaches and in
coastal scrub,
chaparral, and open
riparian habitats.

Sandy washes and
beach dunes are
used for burrowing,
while logs and leaf
litter are used for
cover and feeding.

Moderate Not
expected
The Diegan coastal sage scrub and southern maritime
chaparral in the central and southern portion of the
survey area is moderately suitable for this species. The nearest database records of this species date to 1965
and earlier (CDFW 2024a and County 2024); however,
this species is not expected in the small project footprint as minimal suitable habitat exists and minimal ground
disturbance in marginal habitat is proposed.
coast patch-nosed
snake
(Salvadora hexalepis
virgultea)
SSC Chaparral and semiarid areas with
brushy or shrubby
vegetation in
canyons, plains, and
rocky hillsides.

Moderate Not
expected
The Diegan coastal sage scrub and southern maritime
chaparral in the central and southern portion of the
survey area is moderately suitable for this species. The only database record for this species within 1 mile of
the survey area is a 1967 collection made near Del Mar
Heights Road and Interstate 5, in an area that has since been developed (County 2024); however, this species
is not expected in the small project footprint as minimal suitable habitat exists and minimal ground disturbance
in marginal habitat is proposed.
red diamond
rattlesnake
(Crotalus ruber)
SSC Coastal sage scrub,
open chaparral,
woodland, grassland,
and cultivated areas.

Moderate Not
expected
The Diegan coastal sage scrub and southern maritime
chaparral in the central and southern portion of the
survey area is moderately suitable for this species. The only database records of this species within 1 mile of
the survey area date to 1930 and earlier and lack
specific location data (County 2024); however, this
species is not expected in the small project footprint as minimal suitable habitat exists and minimal ground
disturbance in marginal habitat is proposed.

ATTACHMENT M 195 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
Blainville’s horned
lizard
(Phrynosoma
blainvillii)
SSC;
MSCP
Open chaparral,
coastal sage scrub
with sandy, loose
soil. Partially
dependent on
harvester ants for
forage.

0.6 mile to the south (CDFW 2024a, County 2024);
however, this species is not expected in the small
project footprint as minimal suitable habitat exists and minimal ground disturbance in marginal habitat is
proposed.

Belding’s orangethroated whiptail
(Aspidoscelis
hyperythra beldingi)
WL;
MSCP
Pristine open coastal
sage scrub,
chaparral, and
streamside growth
with loose sandy
soils, revegetation
sites.

High Moderate The Diegan coastal sage scrub and southern maritime chaparral in the central and southern portion of the
survey area is moderately suitable for this species.

There are numerous records of this species within 1
mile of the survey area, with the nearest occurring in
the Crest Canyon Open Space approximately 70 feet
east of the survey area (CDFW 2024a, County 2024).

This species has a moderate potential to occur in the
small project footprint; however, only minimal ground
disturbance in marginal habitat is proposed.
two-striped garter
snake
(Thamnophis
hammondii)
SSC Permanent fresh
water, inhabiting
streams, ponds,
vernal pools.

Occupies adjacent
coastal sage scrub
and grasslands
during the winter.eu
Not expected Not
expected
This species is not expected to occur in the survey area as no permanent fresh water sources exist within the
survey area. The only database record of this species
within 1 mile of the survey area is a voucher specimen
collected in 1929 that lacks specific location data
(County 2024).

ATTACHMENT M 196 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
Birds
osprey
(Pandion haliaetus)
(Nesting)
WL
Coast, lowland lakes,
rarely foothills and
mountain lakes.

Uncommon fall/winter
resident, rare in
spring and summer.

Fish are the primary
prey item.

Observed
(nest)
Not
expected
(forage or
nest)
This species was observed with an active nest in utility pole adjacent to San Dieguito Lagoon in the
northwestern corner of the survey area. The estuarine
habitat in the northern portion of the survey area
provides suitable foraging habitat. No impacts to this
species are anticipated as the pole with the nest will not be removed.
light-footed Ridgway’s
rail
(Rallus obsoletus
levipes)
FE;
SE;
FP;
MSCP
Salt marshes
primarily dominated
by cordgrass.

High Low The salt marsh along the northeastern edge of the survey area is highly suitable for this species; however, there is a low potential for the species to occur within the small project footprint and no ground disturbance in suitable is proposed. This species has been
documented throughout the San Dieguito Lagoon
(CDFW 2024a, USFWS 2024a, County 2024).

California gull
(Larus californicus)
(Nesting
colony)
WL
Common in San
Diego County as a
winter species,
coastal waters, lakes,
ponds, garbage
dumps.

Moderate
(forage); not
expected
(nest)
Not
expected
(forage or
nest)
This species may forage within the estuarine habitat on the northeastern edge of the survey area; however, no
suitable nesting habitat is present.
western snowy plover
(Charadrius
alexandrinus
nivosus)
(Nesting)
FT;
SSC;
MSCP
Sandy beaches,
lagoon margins, tidal
mud flats. Migrant
and winter resident.

Localized breeding.

Not expected
(forage or
nest)
Not
expected
(forage or
nest)
This species is not expected to forage or nest within the survey area as no suitable habitat for this species exists in the survey area. The only record of this species
within 1 mile of the survey area is from 1954 and was
made along the beach, in an area that no longer
supports the species (CDFW 2024a). Critical habitat for this species occurs within a preserved and managed
area within the San Dieguito Lagoon approximately 500
feet to the north of the survey area.

ATTACHMENT M 197 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
California least tern
(Sternula antillarum
browni)
(Nesting
colony)
FE;
SE;
FP;
MSCP
Bays, estuaries,
lagoons, shoreline.

Resident. Localized
High (forage);
not expected
(nest)
Not
expected
(forage or
(nest)
The salt marsh along the northeastern edge of the
survey area provides suitable roosting and foraging
habitat; however, no suitable nesting or foraging habitat exists in the small project footprint. There are records of this species within San Dieguito Lagoon, although
breeding data is scarce (CDFW 2024a, USFWS
2024a).
least Bell's vireo
(Vireo bellii pusillus)
(Nesting)
FE;
SE;
MSCP
Willow-dominated
successional
woodland or scrub,
Baccharis scrub,
mixed oak/willow
woodland, and
elderberry scrub in
riparian habitat.

Nests and forages in
vegetation along
streams and rivers
that measures
approximately 3 to 6
feet in height and has
a dense, stratified
canopy.

Not expected
(forage or
nest)
Not
expected
(forage or
nest)
This species is not expected within the survey area as
the one patch of southern willow scrub in the
northeastern portion of the survey area is too small and isolated to support this species. The nearest records of this species are from riparian habitat east of Interstate 5, approximately 0.6 to 0.7 mile to the east (CDFW
2024a, USFWS 2024a).
yellow warbler
(Setophaga petechia)
(Nesting)
SSC;
MSCP
Well-developed
riparian habitats,
often with mature
willows
Not expected
(forage or
nest)
Not
expected
(forage or
nest)
This species is not expected within the survey area as
the one patch of southern willow scrub in the
northeastern portion of the survey area is too small and isolated to support this species.

ATTACHMENT M 198 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
northern harrier
(Circus hudsonius)
(Nesting)
SSC;
MSCP
Coastal lowland,
marshes, grassland,
agricultural fields.

Migrant and winter
resident, rare
summer resident.

High (forage);
not expected
(nest)
Low
(forage); not
expected
(nest)
The salt marsh along the northeastern edge of the
survey area provides suitable foraging for this species; however, nesting is not expected due to the close
proximity of development. The nearest record of this
species is from near the intersection of Jimmy Durante
Boulevard and San Dieguito Drive, approximately 0.2
mile to the north of the survey area (County 2024).
white-tailed kite
(Elanus leucurus)
(Nesting)
FP
Nest in riparian
woodland, oaks,
sycamores. Forage in
open, grassy areas.

Year-round resident.

Not expected
(forage or
nest)
Not
expected
(forage or
nest)
This species is not expected within the survey area as
the one patch of southern willow scrub in the
northeastern portion of the survey area is too small and isolated to support this species. The nearest record of this species is a 1999 observation just south of the Del Mar Fairgrounds, 0.2 mile to the north of the survey
area (County 2024).
coastal California
gnatcatcher
(Polioptila californica
californica)
FT;
SSC;
MSCP
Coastal sage scrub,
maritime succulent
scrub. Resident.

High Not
expected
The Diegan coastal sage scrub in the central and
southern portion of the survey area is suitable for this species and there are numerous database records of
this species within the vicinity of the survey area
(CDFW 2024a, County 2024, USFWS 2024a);
however, this species is not expected within the small
project footprint as these areas are dominated by tall, woody plant species unsuitable for nesting.
southern California
rufous-crowned
sparrow (Aimophila
ruficeps canescens)
WL;
MSCP
Coastal sage scrub,
chaparral, grassland.

Resident.

High Not
expected
The Diegan coastal sage scrub in the central and
southern portion of the survey area is suitable for this species; however, this species is not expected within
the small project footprint as these areas are dominated by tall, woody plant species unsuitable for nesting.

ATTACHMENT M 199 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
Belding's savannah
sparrow
(Passerculus
sandwichensis
beldingi)
SE;
MSCP
Salt marshes,
lagoons dominated
by Salicornia.

Resident.

High Low The salt marsh habitat within the San Dieguito Lagoon along the northeastern edge of the survey area is
suitable and this species has been documented within
the lagoon adjacent to the survey area (CDFW 2024a,
County 2024); however, this species has a low potential to occur in the small project footprint as minimal
suitable habitat exists and no ground disturbance in
suitable is proposed.

Mammals
western mastiff bat
(Eumops perotis
californicus)
SSC Chaparral, desert
scrub, coniferous
forest. Strongly tied
to cliffs where it
roosts primarily in
rock crevices.

Forages at elevation.

Low (forage);
not expected
(roost)
Low
(forage); not
expected
(roost)
The southern maritime chaparral, Diegan coastal sage
scrub, and Torrey pine forest are suitable for foraging; however, there is no suitable roosting habit in the
survey area. The only record of this species within 1
mile of the survey area was a likely a dead or diseased specimen collected by Animal Control in 1996 (County
2024).
pocketed free-tailed
bat
(Nyctinomops
femorosaccus)
SSC Roosts primarily in
rock crevices in cliffs,
but occasionally in
buildings or caves.

Forages over stock
ponds and other
water bodies in a
variety of habitats,
including desert
scrub and pine-oak
forests.

Low (forage);
not expected
(roost)
Low
(forage); not
expected
(roost)
The only permanent water sources for foraging are
within the lagoon outside the survey area and suitable
roosting habitat is minimal. This species has been
documented in the Camino Del Mar bridge over the
railroad tracks, 0.1 mile to the east of the survey area (CDFW 2024a).

ATTACHMENT M 200 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
northwestern San
Diego pocket mouse
(Chaetodipus fallax
fallax)
SSC San Diego County
west of mountains in
sparse, disturbed
coastal sage scrub or
grasslands with
sandy soils.

High Low The Diegan coastal sage scrub and southern maritime chaparral in the central and southern portion of the
survey area is suitable for this species. This species
has been recorded in the Crest Canyon Open Space
within and to the east of the survey area (CDFW
2024a); however, this species has a low potential to
occur in the small project footprint as minimal suitable habitat exists and minimal ground disturbance in
marginal habitat is proposed.

Pacific pocket mouse
(Perognathus
longimembris
pacificus)
FE;
SSC
Open coastal sage
scrub; fine, alluvial
sands near ocean.

Moderate Low The Diegan coastal sage scrub and southern maritime chaparral in the central and southern portion of the
survey area is moderately suitable for this species. The nearest record of this species is from this area
approximately 500 feet east of the survey area (CDFW
2024a); however, this species has a low potential to
occur in the small project footprint as minimal suitable habitat exists and minimal ground disturbance in
marginal habitat is proposed.

San Diego desert
woodrat
(Neotoma lepida
intermedia)
SSC Coastal sage scrub
and chaparral
High Not
expected
The Diegan coastal sage scrub and southern maritime
chaparral in the central and southern portions of the
survey area is suitable for this species. There are
database records of this species in the Crest Canyon
Open Space within and to the east of the survey area
(CDFW 2024a). A large woodrat nest was observed at
the base of a lemonade berry shrub approximately 15
feet from a pole to be removed (P62787) in the
southern portion of the survey area, but it was likely too large to belong to this species. This species is not
expected in the small project footprint as no woodrat
sign was detected in the vicinity of any other project
features and no ground disturbance in suitable is
proposed.

ATTACHMENT M 201 October 7, 2024 Item 07
Biological Resources Letter Report Crest Canyon Undergrounding District X1A Project __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Potential to Occur
Common Name Status Habitat Description Survey Area Project Footprint
Justification
southern mule deer
(Odocoileus
hemionus)
MSCP Widespread
throughout
undeveloped portions
of San Diego County.

Moderate Not
expected
The Diegan coastal sage scrub, southern maritime
chaparral, Torrey Pine woodland in the central and
southern portion of the survey area is moderately
suitable for this species; however, this species is not expected in the small project footprint and minimal
ground disturbance in marginal habitat is proposed.

STATUS CODES
Federal
FE = Federal-listed endangered species
FT = Federal-listed threatened species
Multiple Species Conservation Program
MSCP = MSCP-covered species
State
SE = State-listed endangered species
ST = State-listed threatened species
SSC = Species of special concern
FP = Fully protected species
SPT = State proposed threatened
WL = State-watch list species
ATTACHMENT M 202 October 7, 2024 Item 07
__________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 ATTACHMENT 7
Summary of Preparer’s Qualifications
ATTACHMENT M 203 October 7, 2024 Item 07
________________________________________________________________________ __________________________________________________________________________ Busby Biological Services, Inc. | 4629 Cass Street #192 | San Diego, California 92109 Darin A. Busby, Principal Biologist

PROFESSIONAL SUMMARY
Mr. Busby has over 25 years of biological experience in the fields of wildlife research and education, and environmental consulting. His primary areas of expertise include conducting focused surveys and monitoring for a variety of state- and federally listed sensitive plant, invertebrate, amphibian, reptile, bird, and mammal species; evaluating impacts to sensitive biological resources; conducting both general and species-specific habitat assessments; designing, implementing, and managing field studies for general biological surveys and largescale baseline ecological studies; performing wildlife movement studies; and conducting jurisdictional wetland delineations. In addition, Mr. Busby has experience preparing a variety of technical reports; managing project databases; and mapping with Global Positioning Systems.

Mr. Busby is knowledgeable of local, state, and federal regulatory requirements, including the City of San Diego Multiple Species Conservation Program and Multi-Habitat Planning Area, County of San Diego Multiple Species Conservation Program, North County Multiple Habitat Conservation Program and Subarea Plans, California Environmental Quality Act, California Endangered Species Act, National Environmental Policy Act, and the federal Endangered Species Act. He has worked on projects for a variety of clients, including government agencies, utility companies, military installations, and private landowners and developers, as well as local, state, and federal regulatory agencies.

PERMITS/CERTIFICATIONS/AUTHORIZATIONS
• USFWS Permit (#115373-4) – Approved to survey for and monitor nests of coastal California gnatcatcher, survey for Quino checkerspot butterfly, and survey for all California vernal pool branchiopods (fairy shrimp)
• USFWS Approval – Survey and monitor for desert tortoise, handle and monitor for arroyo toad
• CDFW Scientific Collecting Permit (#006243) – Approved to survey for insects, herpetofauna, birds, small mammals, and plants
• CDFW Memorandum of Understanding (#006243) – Approved to survey for California black rail
• BLM – Approved to survey for and handle flat-tailed horned lizard • Willow Flycatcher Survey Training Workshop, Kern River Preserve, 2003 • Certification in Wetland Delineation Techniques, Management, and Advanced Hydric Soils.
• Federally, State, and Locally Certified Disadvantaged Business Enterprise (DBE)

EDUCATION
• B.S., Ecology & Evolution, University of California, Santa Barbara (1998) • Wildlife Management Program, The School for Field Studies – Boston University, Kenya, East Africa (1997)
ATTACHMENT M 204 October 7, 2024 Item 07
City of Del Mar Utility Undergrounding
Tree Protection Project
SUBMITTED TO:

Joe Bride
Deputy Public Works Director
City of Del Mar
PREPARED BY:

Gene Bordson
ISA Board Certified Master Arborist
ISA Certified Tree Worker (Climber)
ISA Qualified Tree Risk Assessor
# WE-10777BT
DPR Applicator License# 140768
TCIA Plant Health Care Technician

AUGUST 12, 2021
205 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 1 TABLE OF CONTENTS
BACKGROUND AND ASSIGNMENT .........................................................................................................................2 OBSERVATIONS......................................................................................................................................................3 DISCUSSION...........................................................................................................................................................3 GENERAL MANAGEMENT RECOMMENDATIONS....................................................................................................4 APPENDIX A – PHOTOS .....................................................................................................................................5-12 APPENDIX B – TREE PROTECTION PLAN .......................................................................................................... 13-15 ASSUMPTIONS AND LIMITING CONDITIONS ........................................................................................................ 17 BIBLIOGRAPHY..................................................................................................................................................... 19 GLOSSARY............................................................................................................................................................ 20 206 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 2 BACKGROUND AND ASSIGNMENT
In June of 2021, West Coast Arborists, Inc. (WCA) was contacted by the City of Del Mar regarding a tree protection zone (TPZ) report for a utility undergrounding project. The scope of the work was identified as such: Tree Protection Zone Report for protected tree species (Torrey Pines and Monterey Cypress). Identify the location of all protected and unprotected city trees within the project street right-of-way construction zone. Identify the location of protected and unprotected private property trees within the project street right-of-way construction zone.

Provide a general recommendation of trench offset distance from priority tree trunks to minimize damage to tree roots during trench excavation operations, based on best management practices (BMPs) guidelines. Shown below are the two areas WCA was asked to include in this report. 207 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 3 OBSERVATIONS
ISA Certified Arborist for WCA (Michael Young) visually inspected trees within the specified areas between 08/04/2021 and 08/11/2021 documenting the location and approximate trunk diameters of protected species (Torrey pine and Monterey cypress) likely to be impacted. All other data was derived from WCA’s existing tree inventory database for the City of Del Mar.

Based on the data collection and the ISA’s best management practices, there were 532 trees identified as being at risk of experiencing notable impacts to their health and stability as a direct result of the proposed utility undergrounding project. Of these 532 trees, 169 trees were protected species and 270 trees were identified as being on private property.

DISCUSSION
Below is a list of topics and discussions relating to the preservation of the subject trees. For diagrams relating to the tree protection plan, refer to photos in Appendix A & B.

Root Biology & Root Pruning – The vast majority of tree roots grow growing laterally near the top 18 inches of soil and can grow outward distances of 2-3 times the radius of the crown or more. This means that the proposed trenching is very likely to result in root pruning/damages. Root pruning is an injurious practice that can significantly damage trees and affect their structural strength and health. For these reasons, it is not recommended to perform root pruning any more than absolutely necessary around the tree. Linear root pruning cuts on one side of a tree will likely reduce stability when the cut is made at a distance from the trunk that is less than three times the trunk diameter1.

Construction Work – Because trees are unique living organisms, the impacts of the construction work could vary drastically and take five years or more to show any symptoms.

Some construction activities that can damage or kill trees include root cutting/tearing during trenching, adding fill soil over roots, altering water drainage patterns, soil compaction, mechanical injuries from equipment, heat damage from exhaust, and chemical damage from contamination/ runoff onto the trees or soil. Conscious efforts should be made to mitigate these damages.

Tree Protection Zone (TPZ) - It is important to establish a TPZ around trees during construction to protect the tree’s roots and surrounding soils from damages. WCA recommends installing a 4-6-foot-tall stable fence at or beyond the tree’s drip line or a radius from the trunk of 1 foot per DSH inch to keep equipment, tools, soil, etc. out of the TPZ (refer to Appendix B).

This TPZ should be clearly marked with signs stating that the area within is a TPZ and no one is allowed to disturb it. Irrigation should be provided within the entire TPZ throughout construction to maintain adequate soil moisture levels. Root pruning or any soil disturbances performed within the TPZ areas should be done under the supervision and at the direction of a certified arborist.
1 This statement is not meant to “ok” linear root pruning cuts at or beyond three times a tree’s trunk diameter. 208 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 4 Equipment Mitigation Strategies – In order to reduce soil compaction and tearing/ crushing of roots, driving equipment near trees (in TPZ if hardscapes are removed) should always be avoided when possible. Driving over soil with excessive turning or when soil is wet can be especially damaging. If it is necessary for specific tasks, it is recommended to add a 4-inch layer of mulch with ¾” plywood on top of any softscaping.

GENERAL MANAGEMENT RECOMMENDATIONS
Considering the likely health and stability impacts on private and publicly owned adjacent trees, WCA has the following general management recommendations to consider2:

1. If logistically and fiscally reasonable, horizontal directional drilling (HDD) would likely be the best choice to mitigate impacts to tree health. Conduit for utilities should be installed to a minimum depth of 3-4 feet below grade to reduce the likelihood of severing structurally important roots (see Appendix C for examples). Entry and exit points for boring as well as materials/equipment should be placed outside of any tree canopy driplines throughout the construction process.

2. Move the proposed utility location as far away from trees as possible and install/manage a modified tree protection zone on the tree side of the trenching (see page 4 for details). In order to reduce tearing of roots, it is recommended to use a root pruner such as DOSKO or Vermeer to outline the trenches prior to excavation (at least 18 inches deep). Exposed roots with diameters larger than 1 inch should have final pruning cuts with sharp clean tools after the trenching if substandard injuries are encountered. If roots are to be uncovered for longer than 5 hours, they should be covered with mulch, soil, or moist burlap to help prevent desiccation and sun scald injuries. If the designated trenching location falls within the designated critical root zone (CRZ) of the tree (six times trunk diameter away from the trunk) then the trench should be carefully excavated with an airspade or hand tools to expose the tree roots. An ISA certified arborist should be present to perform or direct this excavation to determine if root pruning without significant impacts on tree health and stability is even possible. If possible, then the project arborist(s) should perform or direct this root pruning. If root pruning is not possible within these guidelines, then removal and replacement of the tree should be considered on a case-by-case basis.
2 Due to the numerous variables and conditions that may be encountered, these general guidelines can be modified at the discretion of the project arborist(s) as is seen fit. 209 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 5 APPENDIX A – PHOTOS

APPENDIX A - PHOTOS
Photo #1 Stratford Court South Protected Tree Map
The image above shows the 36 protected tree sites identified in the Stratford court area with their associated trunk diameter in inches. The general tree protection zone for these trees should be to the edge of each tree’s dripline or one foot radius away from the trunk for every inch trunk diameter (whichever is further). A general critical root zone for each tree has been determined to be a radius of 6 times the trunk diameter away from the trunk. 210 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 6 APPENDIX A – PHOTOS

APPENDIX A - PHOTOS
Photo #2 Stratford Court South Protected Tree Chart
Rows marked with green indicate trees noted as being on private property. 211 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 7 APPENDIX A – PHOTOS
Photo #3 Stratford Court South Protected Tree Chart
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 8 APPENDIX A – PHOTOS

APPENDIX A - PHOTOS
Photo #4 Crest Canyon Protected Tree Map
The image above shows the 133 protected tree sites identified in the Crest Canyon area with their associated trunk diameter in inches. The general tree protection zone for these trees should be to the edge of each tree’s dripline or one foot radius away from the trunk for every inch trunk diameter (whichever is further). A general critical root zone for each tree has been determined to be a radius of 6 times the trunk diameter away from the trunk. 213 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 9 APPENDIX A – PHOTOS

APPENDIX A - PHOTOS
Photo #5 Crest Canyon Protected Tree Chart
Rows marked with green indicate trees noted as being on private property. 214 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 10 APPENDIX A – PHOTOS

APPENDIX A - PHOTOS
Photo #6 Crest Canyon Protected Tree Chart
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 11 APPENDIX A – PHOTOS

APPENDIX A - PHOTOS
Photo #7 Crest Canyon Protected Tree Chart
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 12 APPENDIX A – PHOTOS
Photo #8 Crest Canyon Protected Tree Chart
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 13 APPENDIX A – PHOTOS
Photo #9 Crest Canyon Protected Tree Chart
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 14 APPENDIX B – TREE PROTECTION PLAN

APPENDIX A - PHOTOS
Directional boring, also referred to as horizontal directional drilling (HDD), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surfacelaunched drilling rig. Directional Boring/HDD offers significant environmental advantages over traditional cut and cover pipeline/utility installations. The technique is routinely used when conventional trenching or excavating is not practical or when minimal surface disturbance is required.

Example of Horizontal Directional Drilling
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 15 APPENDIX B – TREE PROTECTION PLAN

APPENDIX A - PHOTOS
• Shown above is an example of an enclosed tree protection zone (TPZ) from the ISA Best Management Practices: Managing Trees During Construction publication. 220 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 16 APPENDIX B – TREE PROTECTION PLAN

APPENDIX A - PHOTOS
• Shown above is an example of tree protection zone fencing and signage. 221 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 17 ASSUMPTIONS AND LIMITING CONDITIONS

1. Care has been taken to obtain all information from reliable sources. All data has been verified insofar as possible; however, the Consultant can neither guarantee nor be responsible for the accuracy of information provided by others. Standard of Care has been met with regards to this project within reasonable and normal conditions.

2. The Consultant will not be required to give testimony or to attend court by reason of this report unless subsequent contractual agreements are made, including payment of an additional fee for such services as described in the fee schedule and contract of engagement.

3. Loss or alteration of any part of this report invalidates the entire report.

4. Possession of this report or a copy thereof does not imply right of publication or use for any purpose by any other than the person to whom it is addressed, without the prior written consent of the Consultant.

5. This report and any values expressed herein represent the opinion of the Consultant, and the Consultant’s fee is in no way contingent upon the reporting of a stipulated result, a specified value, the occurrence of a subsequent event, nor upon any finding to be reported.

6. Unless expressed otherwise: 1) information contained in this report covers only those items that were examined and reflects the condition of those items at the time of inspection; and 2) the inspection is limited to visual examination of accessible items without dissection, excavation, or coring, unless otherwise stated. There is no warranty or guarantee, expressed or implied, that problems or deficiencies of the tree(s) or property in question may not arise in the future.

7. Arborists are tree specialists who use their education, knowledge, training, and experience to examine trees, recommend measures to enhance the beauty and health of trees, and attempt to reduce the risk of living near trees. It is highly recommended that you follow the arborist recommendations; however, you may choose to accept or disregard the recommendations and/or seek additional advice.

8. Arborists cannot detect every condition that could possibly lead to the structural failure of a tree.

Trees are living organisms that fail in ways we do not fully understand. Conditions are often hidden within trees and below ground. Arborists cannot guarantee that a tree will be healthy or safe under all circumstances, or for a specific period of time. 222 October 7, 2024 Item 07
Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 18 9. Any recommendation and/or performed treatments (including, but not limited to, pruning or removal) of trees may involve considerations beyond the scope of the arborist’s services, such as property boundaries, property ownership, site lines, disputes between neighbors, and any other related issues. Arborists cannot take such considerations into account unless complete and accurate information is disclosed to the arborist. An arborist can then be expected to consider and reasonably rely on the completeness and accuracy of the information provided.

10. The author has no personal interest or bias with respect to the subject matter of this report or the parties involved. He/she has inspected the subject tree(s) and to the best of their knowledge and belief, all statements and information presented in the report are true and correct.

11. Unless otherwise stated, trees were examined using the risk assessment criteria detailed by the International Society of Arboriculture’s publications Best Management Practices – Tree Risk Assessment and the Tree Risk Assessment Manual.
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 19 BIBLIOGRAPHY
Harris, Richard W., James R. Clark, and Nelda P. Matheny. Arboriculture: Integrated Management of Landscape Tree, Shrubs, and Vines. New Jersey: Prentice Hall, 2004. Print (ISA) International Society of Arboriculture. Web. March 15 2014.

Smiley, Thomas E., Nelda Matheny, and Sharon Lilly. Best Management Practices: Tree Risk Assessment. Illinois: International Society of Arboriculture, 2011. Print.

Kelby Fite, E. Thomas Smiley. Best Management Practices: Managing Trees During Construction. Illinois: International Society of Arboriculture, 2008. Print.

Edward F. Gilman, Brian Kempf, Nelda Matheny, Jim Clark. Structural Pruning, A Guide For The Green Industry: Urban Tree Foundation, 2013.

Christopher J Luley. Wood Decay Fungi Common to Urban Living Trees in the Northeast and Central United States: Urban Forestry LLC, 2005 Print
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Tree Care Professionals Serving Communities Who Care About Trees www.WCAINC.com 20 GLOSSARY
Air Spade – A specialist excavation tool that uses compressed to remove and break up soil with minimal damage to roots and underground utilities. It can be used for a variety of reasons including the alleviation of compaction, soil improvement, root inspection and root location.

Best Management Practices (BMPs) – The International Society of Arboriculture has developed a series of Best Management Practices (BMPs) for the purpose of interpreting tree care standards and providing guidelines of practice for arborists, tree workers, and the people who employ their services.

Canopy – The part of the crown composed of leaves and small twigs (Harris, Clark, and Matheny 526).

Critical Root Zone (CRZ) – Area of soil around a tree trunk where roots are located that provide stability and uptake of water and minerals required for tree survival.

Crown – The leaves and branches of a tree measured from the lowest branch on the trunk to the top of the tree (Harris, Clark, and Matheny 527).

Drip line – The area defined by the outermost circumference of a tree canopy where water drips from and on to the ground.
225 October 7, 2024 Item 07
City of Del Mar
Agenda Report
________________________________________________________________________________________________________ City Council Action:

TO: Honorable Mayor and City Council Members
FROM: Martin Boyd, Principal Engineer
Joe Bride, Public Works Director
Diana Martinez, Associate Management Analyst
Via Ashley Jones, City Manager
DATE: October 7, 2024
SUBJECT: Award of Construction Contract to Bert W. Salas, Inc. and Related Actions for the Hoska Alley Street and Storm Drain Improvements Project REQUESTED ACTION/RECOMMENDATION:

Staff recommends that City Council: 1) Award a $441,796.50 construction contract to Bert W. Salas, Inc. (Attachment A) for the Hoska Alley Street and Storm Drain Improvements Project; 2) Award a $69,780 Task Order to Dudek for Construction Management and Inspection Services (Attachment B); 3) Approve a 10% project contingency of $51,423; 4) Authorize the City Manager to execute the required documents and any contract changes necessary to complete the work; and 5) Amend the Fiscal Year 2024-2025 Operating and Capital Budget as described in the Fiscal Impact Section of this report.

DISCUSSION/ANALYSIS:

Hoska Alley is an undeveloped alley between the City’s right-of-way on 8th and 9th Streets from Hoska Drive to Camino Del Mar. The alley’s western portion, approximately 450 feet, is only accessible on foot due to various encroachments from residential properties. The eastern portion of the alley, which is approximately 300 feet, provides vehicular access to approximately 10 residential properties. The alley’s eastern portion contains a water main with services/meters to approximately 14 properties.

The original subdivision maps for the hillside portion of the City, some of which date back to the early 1900’s, contained unimproved alleys due to challenging topography. These alleys are dedicated as City right-of-way. In the case of Hoska Alley, while it was never formally improved and remains in an unimproved condition, the upper portion of the alley was made accessible for vehicles with a gravel surface and has been utilized as such over time. An existing storm drain inlet is located at the western end of the accessible portion of the alley. Over the years, Hoska Alley residents have requested that the City take steps to improve the alley to address dust and drainage issues.

On January 9, 2023, the City Council approved a Task Order with Michael Baker International (MBI) to conduct an engineering assessment and provide initial design alternatives and cost projections (Phase I) for the development of Hoska Alley, and on 1 October 7, 2024 Item 08
City Council Agenda Report
Award of Construction Contract – Hoska Alley Street and Storm Drain Improvements Project October 7, 2024

Page 2 of 4 ends

Del Mar City CouncilOctober 7, 2024

Del Mar City Council
October 7, 2024