City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 1
Attachment A
Mitigation Monitoring and Reporting Program
Heritage Valley Business Center
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 2
SECTION 1: AUTHORITY
This environmental Mitigation Monitoring and Reporting Program (Program) has been prepared pursuant to Section 21081.6 of the California Environmental Quality Act (CEQA) (Public Resources Code Section 21000 et seq.) and CEQA Guidelines (14 Cal. Code Regs. Section 15000 et seq.) Sections 15091(d) and 15097 to ensure implementation of and provide for the monitoring of mitigation measures required of the Heritage Valley Business Center (Project), as set forth in the Final Environmental Impact Report (EIR) prepared for the Project. This report will be kept on file in the offices of the CEQA Lead Agency, the City of Menifee (City).
As noted in the EIR, the Project has been designed to avoid sensitive resources, as reflected in Project design plans and in Project Design Features (PDFs). In addition, the EIR addresses the potential environmental impacts of the Project, and, where appropriate, recommends mitigation measures to avoid or substantially lessen significant environmental impacts. The Program detailed in the matrix table below is designed to monitor and ensure implementation of all mitigation measures that are adopted for the Project.
The City of Menifee (City) is the lead agency for the Project and assumes ultimate enforcement responsibilities for implementation of all mitigation measures listed in this Program. The City may assign responsibility for implementation or monitoring to appropriate designees such as a construction manager or third-party monitor. However, as the lead agency, the City remains responsible for ensuring that implementation of the mitigation measures occurs in accordance with this Program. In some cases, the City is required to secure permits or approvals from third-party agencies in order to implement a mitigation measure. In these cases, the City is responsible for verifying that such permits or approvals have been obtained in accordance with the conditions stipulated in the mitigation measure. The City’s existing planning, engineering, operations, and procurement review and inspection processes will be used as the basic foundation for the Program procedures and will also serve to provide the documentation for the reporting program.
SECTION 2: MONITORING SCHEDULE
Prior to construction, while detailed design plans are being prepared by the developer or its agents, City staff will be responsible for ensuring compliance with mitigation monitoring applicable to the Project construction, development, and design phases. Once construction has begun and is underway, monitoring of the mitigation measures associated with construction will be included in the responsibilities of City staff, who shall prepare or cause to be prepared periodic monitoring reports as appropriate. Regulatory agencies will have to harmonize CEQA mitigation with regulatory permit conditions and monitoring/reporting as part of the regulatory permitting process and will likely require submittal of formal monitoring reports.
Once construction has been completed, the City will monitor the project as specified in the mitigation measures or as otherwise deemed necessary. At minimum, the City will prepare a mitigation monitoring status report prior to commencing construction, prior to commencing operations, within 90 days of commencing operations, and following completion of the first full year of operations.
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 3
SECTION 3: SUPPORT DOCUMENTATION
Findings and related documentation supporting the findings involving modifications to mitigation measures shall be maintained in the Project file with the Mitigation Monitoring and Reporting Program and shall be made available to the public upon request.
SECTION 4: FORMAT OF MITIGATION MONITORING MATRIX
The mitigation monitoring matrix on the following pages identifies the environmental issue areas for which monitoring is required, the required mitigation measures, the time frame for monitoring, and the responsible implementing and monitoring agencies.
SECTION 5: DEFINITIONS
The following list provides definitions for acronyms used in the mitigation monitoring and reporting program.
Acronyms/Abbreviation Description
APU ............................................. Auxiliary Power Units AQ ............................................... Air Quality AQMD ......................................... Air Quality Management District BIO .............................................. Biological Resources BMPs .......................................... Best Management Practices CARB ........................................... California Air Resources Board CEQA ........................................... California Environmental Quality Act City ............................................. City of Menifee County ........................................ County of Riverside CTR ............................................. Commute Trip Reduction CUL ............................................. Cultural Resources EV ............................................... Electric Vehicle GEO ............................................. Geology and Soils GHG ............................................ Greenhouse Gas HAZ ............................................. Hazards MBTA .......................................... Migratory Bird Treaty Act MM ............................................. Mitigation Measure Moyer Program……………………………..Carl Moyer Memorial Air Quality Standards Attainment Program
MSHCP ........................................ Multiple Species Habitat Conservation Plan
O&M ........................................... Operations and Maintenance PRD ............................................. Permit Registration Documents PRIMP ......................................... Paleontological Resource Mitigation Program
RWQCB ....................................... Regional Water Quality Control Board SCAQMD ..................................... South Coast Air Quality Management District
SCE .............................................. Southern California Edison SMARTS ...................................... Storm Water Multiple Application and Report Tracking System
SWPPP ........................................ Stormwater Pollution Prevention Plan VOC ............................................ Volatile Organic Compound VMT ............................................ Vehicle Miles Traveled WQMP ........................................ Water Quality Management Plan
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 4
Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
AIR QUALITY
MM AQ-1: To reduce VOC emissions associated with architectural coating, the Project designer and contractor shall reduce the use of paints and solvents by utilizing pre-coated materials (e.g., bathroom stall dividers, metal awnings), materials that do not require painting, and require coatings and solvents with a VOC content lower than required under Rule 1113 to be utilized. The construction contractor shall be required to utilize “Super-Compliant” VOC paints, which are defined in SCAQMD’s Rule 1113. Construction specifications shall be included in building specifications to assure that these requirements are implemented. The specifications shall be reviewed by the City of Menifee’s Building and Safety Department for compliance with this mitigation measure prior to issuance of the Project’s building permit.
Project designer and
contractor
Prior to the issuance of
the Project’s building
permit
City of Menifee Building
and Safety Department
BIOLOGICAL RESOURCES
MM BIO-1: If grading or construction activities, including vegetation removal, occurs between February 1st and August 31st, a pre-construction clearance survey for nesting birds should be conducted within 3 days of the start of any vegetation removal or ground disturbing activities to ensure that no nesting birds will be disturbed during construction. The Project Applicant shall ensure that impacts to nesting bird species at the Project site and off-site improvement areas are avoided through the implementation of preconstruction surveys, ongoing monitoring, and if necessary, establishment of minimization measures. The Project Applicant shall adhere to the following:
a. Applicant shall designate a qualified biologist (Designated Biologist) experienced in: identifying local and migratory bird species of special concern; conducting bird surveys using appropriate survey methodology; nesting surveying techniques, recognizing breeding and nesting behaviors, locating nests and breeding territories, and identifying nesting stages and nest success; determining/establishing appropriate avoidance and minimization measures; and monitoring the efficacy of implemented avoidance and minimization measures. b. Surveys shall be conducted by the Designated Biologist at the appropriate time of day/night, during appropriate weather conditions, no more than 3 days prior to the initiation of Project activities. Surveys Project Applicant,
Qualified Biologist
Prior to ground
disturbance activities
or any vegetation
removal
Biological Monitor
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
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Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
shall encompass all suitable areas including trees, shrubs, bare ground, burrows, cavities, and structures. Survey duration shall take into consideration the size of the Project site; density, and complexity of the habitat; number of survey participants; survey techniques employed; and shall be sufficient to ensure the data collected is complete and accurate. If a nest is suspected, but not confirmed, the Designated Biologist shall establish a disturbance-free buffer until additional surveys can be completed, or until the location can be inferred based on observations. If a nest is observed, but thought to be inactive, the Designated Biologist shall monitor the nest for one hour (four hours for raptors during the non-breeding season) prior to approaching the nest to determine status. The Designated Biologist shall use their best professional judgement regarding the monitoring period and whether approaching the nest is appropriate.
c. If an active (i.e., occupied with eggs or fledglings) avian nest is confirmed, the Designated Biologist shall immediately establish a conservative avoidance buffer surrounding the nest (generally 300 feet for migratory and non-migratory songbirds and 500 feet raptors and special-status species) based on their best professional judgement and experience. The Designated Biologist shall monitor the nest at the onset of Project activities, and at the onset of any changes in such Project activities (e.g., increase in number or type of equipment, change in equipment usage, etc.) to determine the efficacy of the buffer. If the Designated Biologist determines that such Project activities may be causing an adverse reaction, the Designated Biologist shall adjust the buffer accordingly or implement alternative avoidance and minimization measures, such as redirecting or rescheduling construction or erecting sound barriers. If the Designated Biologist determines that a buffer will provide insufficient protection to an active avian nest, all work within these buffers will be halted until the nesting effort is finished (i.e., the juveniles are surviving independent from the nest). The Designated Biologist will review and verify compliance with these nesting avoidance buffers and will verify the nesting effort has finished. Work can resume within these avoidance areas when no other active nests are found. Upon completion of the survey and nesting bird City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 6
Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
monitoring, a report shall be prepared and submitted to City for mitigation monitoring compliance record keeping.
MM BIO-2: In order to comply with the conservation goals of the MSCHP, a 30- day burrowing owl pre-construction clearance survey be conducted in accordance with the Burrowing Owl Survey Instructions for the Western Riverside Multiple Species Habitat Conservation Plan Area prior to any ground disturbing activities. If burrowing owls and/or birds displaying nesting behaviors are observed within the Project site and off-site improvement areas during future construction, further review may be needed to ensure compliance with the MSHCP, MBTA and Fish and Game Code.
Project Applicant,
Qualified Biologist
Prior to ground
disturbance activities
Biological Monitor
GEOLOGY AND SOILS
MM GEO-1: Prior to the issuance of any grading permit or building permit, City Staff shall review all Project plans involving grading, foundation, structural, infrastructure, and all other relevant construction to ensure compliance with the applicable recommendations from the Update Geotechnical Investigation for the Heritage Valley Business Center – Building 2 (Geotechnical Investigation), and the California Building Code requirements to minimize soil erosion or the loss of topsoil. Specific design considerations as outlined in the Geotechnical Investigation, included in Appendix F1, shall be implemented in the Project construction plans to minimize the risk for soil erosion and other geologic hazards.
Project Applicant Prior to the issuance of
any grading permit or
building permit
City of Menifee Building
and Safety Division
MM GEO-2: Paleontological Resources Impact Mitigation Program. The Applicant will submit a Paleontological Resources Impact Mitigation Program (PRIMP) prepared by a qualified paleontologist to the City of Menifee prior to the issuance of a grading permit. A qualified paleontologist is defined as an individual with an M.S./M.A. or Ph.D. in paleontology or geology who is familiar with paleontological procedures and techniques, and who is knowledgeable in the geology and paleontology of the area.
Project Applicant,
Qualified
Paleontologist
Prior to the issuance of
a grading permit
City of Menifee Building
and Safety Division
MM GEO-3: Paleontological Monitoring. A qualified paleontologist will attend preconstruction meetings to consult with the grading and excavation contractors concerning planned depths, excavation schedules, paleontological field Project Applicant,
Qualified
Paleontologist
Prior to the
commencement of
excavation and
City of Menifee Building
and Safety Division
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 7
Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
techniques, and safety issues. In addition, all onsite construction personnel will receive Worker Education and Awareness Program (WEAP) training prior to the commencement of excavation work. All ground-disturbing activities associated with Project construction occurring within previously undisturbed fossil bearing formations will be monitored by a qualified paleontologist or qualified paleontological monitor. A paleontological monitor is defined as an individual who has experience in the collection and salvage of fossil materials and works under the direction of a qualified paleontologist. If fossils are discovered, the paleontologist (or paleontological monitor) will recover them. In most cases, this fossil salvage can be completed in a short period of time; however, some fossil specimens, such as a complete large mammal skeleton, may require an extended salvage period. In these instances, the paleontologist (or paleontological monitor) will be allowed to temporarily direct, divert, or halt grading to allow recovery of fossil remains in a timely manner. Because of the potential for the recovering of small fossil remains, such as isolated mammal teeth, it may be necessary to set up a screen-washing operation on site. throughout
construction work
MM GEO-4: Paleontological Data Recovery. Fossil remains collected during the monitoring and salvage portion of the program will be cleaned, repaired, sorted, and catalogued. Prepared fossils, along with copies of all pertinent field notes, photos, and maps, will be deposited (as a donation) in a scientific institution with permanent paleontological collections located within Riverside County (or, if no repository is available, adjacent Counties). A final data recovery report will be completed that outlines the results of the paleontological monitoring program.
This report will include discussions of the methods used, stratigraphic section(s) exposed, fossils collected, and significance of recovered fossils. The report will be submitted to the City upon completion.
Project Applicant,
Qualified
Paleontologist
In the event of
paleontological
resource discovery
City of Menifee Building
and Safety Division
GREENHOUSE GAS EMISSIONS
MM GHG-1: Legible, durable, weather-proof signs shall be placed at truck access gates, loading docks, and truck parking areas that identify applicable CARB anti- idling regulations. At a minimum, each sign shall include: 1) instructions for truck drivers to shut off engines when not in use; 2) instructions for drivers of diesel trucks to restrict idling to no more than five (5) minutes once the vehicle is stopped, the transmission is set to "neutral" or "park," and the parking brake is engaged; and 3) telephone numbers of the building facilities manager and the Project Applicant Prior to the issuance of
an occupancy permit
City of Menifee
Community
Development
Department
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
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Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
CARB to report violations. Prior to the issuance of an occupancy permit, the City shall conduct a site inspection to ensure that the signs are in place.
MM GHG-2: All on-site outdoor cargo-handling equipment (including yard trucks, hostlers, yard goats, pallet jacks, forklifts, and other on-site equipment) shall be electric or non-diesel fueled. All on-site indoor forklifts shall be powered by electricity.
Project Applicant Prior to the issuance of
an occupancy permit
City of Menifee
Community
Development
Department
MM GHG-3: Prior to tenant occupancy, the Project Applicant or successor in interest shall provide documentation to the City demonstrating that occupants/tenants of the Project site have been provided documentation on funding opportunities, such as the Carl Moyer Program, that provide incentives for using cleaner-than-required engines and equipment.
Project Applicant Prior to the issuance of
tenant occupancy
permits
City of Menifee
Community
Development
Department
MM GHG-4: Conduits for the installation of electrical hookups to allow future EV trucks and trucks with APU shall be installed at a ratio of one charging station for every 50 dock high doors.
Project Applicant Prior to the issuance of
tenant occupancy
permits
City of Menifee
Community
Development
Department
MM GHG-5: Parking areas shall be designed to accommodate EV charging stations for passenger cars consistent with CALGreen requirements.
Project Applicant Prior to the issuance of
tenant occupancy
permits
City of Menifee
Community
Development
Department
MM GHG-6: All landscaping equipment (e.g., leaf blower) used for property management shall be electric powered only. The property manager/facility owner shall provide documentation (e.g., purchase, rental, and/or services agreement) to the City of Planning Department to verify, to the City’s satisfaction, that all landscaping equipment utilized will be electric powered.
Project
Applicant/Property
Manager/Facility
Owner
Prior to the issuance of
tenant occupancy
permits
City of Menifee
Community
Development
Department
MM GHG-7: Prior to issuance of tenant occupancy permits, the Project applicant shall be required to install a solar photovoltaic (PV) system sufficient to offset at least 20% of the Project’s projected energy demand. The final PV generation facility size requires approval by Southern California Edison (SCE). SCE’s Rule 21 governs operating and metering requirements for any facility connected to SCE’s Project Applicant Prior to the issuance of
tenant occupancy
permits
City of Menifee Building
and Safety Division
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
May 2026 9
Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
distribution system. The City of Menifee Building and Safety Division shall verify that the building includes an electrical system and that other infrastructure is sufficiently sized to accommodate the PV arrays. The electrical system and infrastructure must be clearly labeled with noticeable and permanent signage.
HYDROLOGY AND WATER QUALITY
MM HYD-1: Prior to commencing grading, the Project Applicant shall comply with applicable construction water quality regulations including the NPDES General Construction Permit, which shall be obtained from the Regional Water Quality Control Board. This process requires that the applicant electronically submit Permit Registration Documents (PRDs) prior to commencement of construction activities in the Storm Water Multiple Application and Report Tracking System (SMARTS). PRDs consist of the Notice of Intent, Risk Assessment, Post- Construction Calculations, a Site Map, the Stormwater Pollution Prevention Plan (SWPPP), a signed certification statement by the Legally Responsible Person, and the first annual fee.
The required SWPPP must be submitted to the City of Menifee Engineering Department for review and approval, identifying specific actions and Best Management Practices (BMPs) to prevent stormwater pollution during construction activities. The SWPPP shall identify a practical sequence for BMP implementation, site restoration, contingency measures, responsible parties, and agency contacts. The SWPPP shall include but not be limited to the following elements:
a. Compliance with the requirements of the State of California’s most current Construction Stormwater Permit.
b. Temporary erosion control measures shall be implemented on all disturbed areas.
c. Disturbed surfaces shall be treated with erosion control measures during the October 15 to April 15 rainy season.
d. Sediment shall be retained on-site by a system of sediment basins, traps, or other BMPs.
e. The construction contractor shall prepare Standard Operating Procedures for the handling of hazardous materials on the construction site to eliminate discharge of materials to storm drains.
Project Applicant Prior to the
commencement of
grading
City of Menifee
Engineering Department
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
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Mitigation Measures Responsibility for
Implementation Timing Responsibility for
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(Signature Required)
(Date of Compliance)
f. BMP performance and effectiveness shall be determined either by visual means where applicable (e.g., observation of above-normal sediment release), or by actual water sampling in cases where verification of contaminant reduction or elimination (such as inadvertent petroleum release) is required by the Santa Ana RWQCB to determine adequacy of the measure.
g. In the event of significant construction delays or delays in final landscape installation, native grasses or other appropriate vegetative cover shall be established on the construction site as soon as possible after disturbance, as an interim erosion control measure throughout the duration of construction.
h. Prior to the issuance of the first grading permit, the Project Applicant shall submit the Final Tentative Parcel Map that includes the water quality BMPs for approval by the City of Menifee Engineer. The City of Menifee Engineer shall ensure that all applicable water quality standards are met before approving the SWPPP.
MM HYD-2: The Project Applicant shall prepare a Final Project-Specific Water Quality Management Plan (WQMP) with Operations and Maintenance (O&M) Plan for submittal together with the associated grading and improvement plans which must be approved prior to the issuance of a building or grading permit.
These documents shall be prepared in accordance with applicable City (Menifee) and County (Riverside) water quality requirements, for review and approval by the City of Menifee Engineering Department, including the following:
Site Design Best Management Practices (BMPs)
Source Control BMPs
Treatment Control BMPs
BMP Sizing
Equivalent Treatment Control Alternatives
Regionally-Based Treatment Control BMPs
O&M Responsibility for Treatment Control BMPs.
Project Applicant Prior to the issuance of
a building or grading
permit
City of Menifee
Engineering Department
MM HYD-3: Prior to issuance of grading permits, the tentative parcel maps, grading plans, and final drainage study shall demonstrate compliance with applicable City and County drainage plans, policies, design guidelines and Project Applicant Prior to the issuance of
grading permits
City of Menifee
Engineering Department
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
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Mitigation Measures Responsibility for
Implementation Timing Responsibility for
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(Signature Required)
(Date of Compliance)
regulations including but not limited to City of Menifee Municipal Code Chapter
8.26 Grading Regulations.
TRANSPORTATION
MM TRA-1: Implement Commute Trip Reduction (CTR) Marketing. Future project employers shall implement a marketing strategy to promote a CTR program.
Information sharing and marketing promote and educate employees about their travel choices to the employment location beyond single occupancy driving such as carpooling, taking transit, walking, and biking, thereby reducing VMT. The following features (or similar alternatives) of the marketing strategy are essential for effectiveness.
On-site or online commuter information services.
Employee transportation coordinators.
On-site online transit pass sales.
Guaranteed ride home service.
Project employers will provide their employees with materials and online resources as a means to promote the commute trip reduction program.
Future Project
Employers
Concurrent with
Project operations
City of Menifee
Community
Development
Department
MM TRA-2: Provide Ridesharing Program. The Project will provide a ridesharing program and establish a permanent transportation management association .
Ridesharing encourages carpooled vehicle trips in place of single-occupied vehicle trips, thereby reducing the number of trips and VMT. Ridesharing must be promoted through a multifaceted approach. Required measures include:
Designating a certain percentage of desirable parking spaces for ridesharing vehicles.
Designating adequate passenger loading and unloading and waiting areas for ridesharing vehicles.
Providing an app or website for coordinating rides.
Project Applicant Prior to the issuance of
occupancy permits
City of Menifee
Community
Development
Department
MM TRA-3: Provide End-of-Trip Bicycle Facilities. The measure will install and maintain end-of-trip facilities for employee use. End-of-trip facilities include bike parking, bike lockers, showers, and personal lockers. The provision and Project Applicant Prior to the issuance of
occupancy permits
City of Menifee
Community
City of Menifee
Heritage Valley Business Center Project Mitigation Monitoring and Reporting Program
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Mitigation Measures Responsibility for
Implementation Timing Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
maintenance of secure bike parking and related facilities encourages commuting by bicycle, thereby reducing VMT and GHG emissions. This will promote an alternative mode of commuting for employees.
Development
Department