580 DUBUQUE AVENUE PROJECT ‐ MMRP PAGE 1 OF 9
580 Dubuque Avenue Project Mitigation Monitoring and Reporting Program Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed Air Quality Mitigation Measure Air‐1: Basic Construction Management Practices. The project shall demonstrate proposed compliance with all applicable regulations and operating procedures prior to issuance of demolition, building or grading permits, including implementation of the following BAAQMD “Basic Construction Mitigation Measures”:
i) All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. ii) All haul trucks transporting soil, sand, or other loose material off‐site shall be covered.
iii) All visible mud or dirt track‐out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day, unless the City Engineer determines that an alternative cleaning method would achieve the same standard of air pollution prevention and also reduce the potential for stormwater pollution. iv) All vehicle speeds on unpaved roads shall be limited to 15 mph.
v) All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used. vi) Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to 5 minutes (as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points. vii) All construction equipment shall be maintained and properly tuned in accordance with manufacturer’s specifications. All Prior to
issuance of all
grading and
construction
permits
‐and‐
During
grading and
construction
Applicant
Verify construction
contractors
provide
acknowledgment
of requirements
‐and‐
Verify
requirements are
met during grading
and construction
SSF Building
Division
PAGE 2 OF 9 580 DUBUQUE AVENUE PROJECT ‐ MMRP
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed equipment shall be checked by a certified mechanic and determined to be running in proper condition prior to operation. viii) Post a publicly visible sign with the telephone number and person to contact at the Lead Agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District’s phone number shall also be visible to ensure compliance with applicable regulations.
Biological Resources Mitigation Measure Bio‐1: Pre‐Construction Nesting Bird Survey.Initiation of construction activities during the avian nesting season (February 15 through September 15) shall be avoided to the extent feasible. If construction initiation during the nesting season cannot be avoided, pre‐construction surveys for nesting birds protected by the Migratory Bird Treaty Act of 1918 and/or Fish and Game Code of California within 100 feet of a development site in the project area shall be conducted within 14 days prior to initiation of construction activities. If active nests are found, a 100‐foot buffer area shall be established around the nest in which no construction activity takes place. The buffer width may be modified upon recommendations ofa qualified biologist regarding the appropriate buffer in consideration of species, stage of nesting, location of the nest, and type of construction activity based upon published protocols and/or guidelines from the U.S. or California Fish and Wildlife Services (USFWS, CDFW) or through consultation with USFWS and/or CDFW. The biologist may also determine that construction activities can be allowed within a buffer area with monitoring by the biologist and stoppage of work in that area if adverse effects to the nests are observed. The buffer shall be maintained until after the nestlings have fledged and left the nest. These surveys would remain valid as long as construction activity is consistently occurring in a given area and would be completed again if there is a lapse in construction Prior to
issuance of
grading
permit, if
during nesting
period
‐and‐
Prior to
issuance of
any
subsequent
grading or
construction
permit if
during nesting
period
Applicant
Verify completion
of survey and, if
birds present,
provision of buffer
‐and‐
Confirm no gap in
activity over 14
days or verify
updated survey
SSF Planning
Division
580 DUBUQUE AVENUE PROJECT ‐ MMRP PAGE 3 OF 9
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed activities of more than 14 consecutive days during the nesting season. Cultural and Tribal Cultural Resources Mitigation Measures Cul‐1: Sampling and/or Monitoring Plan. Prior to ground disturbance, a qualified archaeologist shall draft project specific recommendations for sampling and/or monitoring for subsurface paleontological, archaeological, and/or tribal resources during excavation as determined necessary based on records searches and previous studies of the site. Next steps could include additional exploration prior to construction, monitoring of site disturbance by a qualified professional, or no additional action other than that specified in Cul‐2, Cul‐3, and Cul‐4. The plan and supporting reasoning shall be submitted to the City of South San Francisco for approval and the applicant shall be responsible for implementing the plan and any follow‐up actions determined to be necessary.
Prior to
issuance of
grading
permits
Applicant
Verify submittal of
plan and verify
requirements are
met during
construction
SSF Building
Division
Mitigation Measures Cul‐2: Cultural Resources Worker Environmental Awareness Program (WEAP). A qualified archaeologist shall conduct a WEAP training for all construction personnel on the project site prior to construction and ground‐disturbing activities. The training shall include basic information about the types of paleontological, archaeological, and/or tribal artifacts that might be encountered during construction activities, and procedures to follow in the event of a discovery. This training shall be provided for any personnel with the potential to be involved in activities that could disturb native soils.
Prior to
issuance of
construction
permits
‐and‐
Prior to
initiation of
grading or
excavation
Applicant
Verify construction
contractors
provide
acknowledgment
of requirements
‐and‐
Verify
requirements are
met during
construction
SSF Building
Division
PAGE 4 OF 9 580 DUBUQUE AVENUE PROJECT ‐ MMRP
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed Mitigation Measures Cul‐3: Halt Construction Activity, EvaluateFind and Implement Mitigation. In the event that previously unidentified paleontological, archaeological, or tribal resources are uncovered during site preparation, excavation or other construction activity, the project applicant shall cease or ensure that all such activity within 25 feet of the discovery is ceased until the resources have been evaluated by a qualified professional, who shall be retained by the project applicant, and specific measures are implemented by the project applicant to protect these resources in accordance with sections 21083.2 and 21084.1 of the California Public Resources Code.
Prior to
issuance of
grading
permits
‐and‐
During
grading
Applicant
Verify construction
contractors
provide
acknowledgment
of requirements
‐and‐
Verify
requirements are
met during
construction
SSF Building
Division
Mitigation Measures Cul‐4: Halt Construction Activity, EvaluateRemains and Take Appropriate Action in Coordination with NativeAmerican Heritage Commission. In the event that human remains are uncovered during site preparation, excavation or other construction activity, the project applicant shall cease or ensure that all such activity within 25 feet of the discovery is ceased until the remains have been evaluated by the County Coroner, which evaluation shall be arranged by the project applicant, and appropriate action taken by the project applicant in accordance with section 7050.5 of the California Health and Safety Code and, if the remains are Native American, in accordance with section 5097.98 of the California Public Resources Code.
Prior to
issuance of
grading
permits
‐and‐
During
grading
Applicant
Verify construction
contractors
provide
acknowledgment
of requirements
‐and‐
Verify
requirements are
met during
construction
SSF Building
Division
Geology and Soils Mitigation Measure Geo‐1: Compliance with a design‐level Geotechnical Investigation report prepared by a Registered Geotechnical Engineer and with Structural Design Plans as prepared by a Licensed Professional Engineer. Proper foundation engineering and construction shall be performed in accordance with the recommendations of a Registered Geotechnical Engineer and aLicensed Professional Engineer. The structural engineering design, Prior to
issuance of
building
permits
Applicant
Verify construction
contractors
provide
acknowledgement
of geotechnical
recommendations
SSF Building
Division
580 DUBUQUE AVENUE PROJECT ‐ MMRP PAGE 5 OF 9
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed with supporting Geotechnical Investigation, shall incorporate seismic parameters compliant with the California Building Code.Hazards and Hazardous Materials Mitigation Measure Haz‐1: Response Plan Implementation and Completion. The applicant shall coordinate with DTSC to implement a Response Plan pursuant to the previously‐approved CLRRA Agreement (Docket No HSA‐FY19/20‐013) to appropriately mitigate soil contamination. Evidence of plan approval by DTSC shall be submitted to the City prior to initiation of earth‐moving at the site and a Certificate of Completion (or other no further action documentation) shall be submitted prior to issuance of Occupancy Permits. While details will be coordinated with DTSC, the following components are anticipated to be included in the Response Plan:1. Soil Management. The proposed construction activities will disturb soil during the excavation, site grading, construction of new foundations, and installation of utility lines. During excavation activities, air monitoring and dust control measureswill be implemented. The soil management objectives for the site are to control exposure of potentially hazardous constituents in soil to construction workers, nearby residents and/or pedestrians, and future users of the site, all implemented pursuant to the DTSC‐approved plan. The components of the Response Plan will establish and maintain required health and safety procedures to control worker and public exposure to site contaminants during construction including but not necessarily limited to the elements listed below.
2. Dust Control. During handling of potentially contaminated soils, an enhanced dust control plan with provisions to protect construction workers and the public will be implemented through engineering controls, to control generation of dust andresulting off‐site migration of contaminants in site soil. Dust Prior to
issuance of
grading
permits
‐and‐
During
construction
Applicant
Verify DTSC
approval and
construction
contractors
provide
acknowledgement
of requirements
‐and‐
Verify
requirements are
met during
construction
SSF Building
Division
PAGE 6 OF 9 580 DUBUQUE AVENUE PROJECT ‐ MMRP
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed control measures will include: • Community air monitoring. • Covering soil stockpiles with plastic sheeting. • Watering uncovered ground surface at the site to prevent visible dust from becoming air‐borne.
• Misting or spraying of soil as required during excavation and loading.
• Placement of gravel and/or rubble plates on unpaved site access roads as feasible.
• Covering of trucks hauling contaminated soil from the site with a tarpaulin or other cover.
• Reducing to as low as feasible the soil drop from an
excavator’s bucket onto soil piles or into transport trucks. • Deployment of windbreaks as necessary. • Posting on‐site vehicle speed limits. • Street sweeping of public streets as required when soils are visible.
• Termination of excavation and loading activities if winds exceed 15 mph.
• Addition of soil stabilizers and other responses as needed.
3. Health and Safety Plan. The potential health risk to on‐site construction workers and the public will be minimized by developing and implementing a comprehensive Health and Safety Plan prepared by a certified industrial hygienist representing the contractor. The purpose of the Health and Safety Plan is to provide field personnel with an understandingof the potential chemical and physical hazards, protection of any off‐site receptors, procedures for entering the project site, health and safety procedures, and emergency response to hazards should they occur. All project personnel shall undergo the identified health and safety training, and read and adhere to the procedures established in the Health and Safety Plan. A copy of the Health and Safety Plan shall be kept on site during 580 DUBUQUE AVENUE PROJECT ‐ MMRP PAGE 7 OF 9
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed field activities and reviewed and updated as necessary.
The Health and Safety Plan will describe the specific personal hygiene and monitoring equipment that will be used during construction to protect and verify the health and safety of theconstruction workers and the general public from exposure to constituents in the soil and groundwater.
4. Health and Safety Officer. A site health and safety officer identified in the Health and Safety Plan will be on site at alltimes during excavation activities to ensure that all health and safety measures are maintained. The health and safety officer will have authority to direct and stop (if necessary) all construction activities in order to ensure compliance with the health and safety plan.
5. Groundwater Management. Construction dewatering is
anticipated based on development plans, however, per analytic results of groundwater sampling, it is anticipated the groundwater from the site will be able to be discharged into the sanitary sewer system with no additional treatment. While not anticipated to be included as a required element of the Response Plan, any construction dewatering must adhere to a discharge permit obtained from the South San Francisco Department of Public Works Water Quality Control Division, Environmental Compliance Program or the Regional Water Quality Control Board. In the event of the presence of regulated levels of contamination, measures will be taken to comply with applicable requirements.
6. Contingency Plans for Unknown/Unexpected Conditions. The following tasks shall be implemented during excavation activities if unanticipated hazardous materials are encountered. Such materials may include unaccounted for underground storage tanks and associated product lines, sumps, and/or vaults, former monitoring wells, and/or soil with significant petroleum hydrocarbon odors and/or stains. • Stop work in the area where the suspect material is PAGE 8 OF 9 580 DUBUQUE AVENUE PROJECT ‐ MMRP
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed encountered and cover with plastic sheets.
• Notify the site safety officer and site superintendent. • Have an appropriate professional conduct a site inspection and determine appropriate follow‐up actions, which would include appropriate handling and removal of the identified hazard. • Review the existing health and safety plan for revisions, if necessary, and have appropriately trained personnel on‐site to work with the affected materials as required by applicable requirements.
Transportation Mitigation Measure Trans‐1: Shared Dubuque Avenue Driveway Safety Improvements. The applicant shall coordinate the following safety improvements for the intersection of Dubuque Avenue and the shared Caltrain / project driveway to provide adequate sight distance between northbound Dubuque Avenue traffic and vehiclesexiting the shared Dubuque Avenue driveway. a) The applicant shall coordinate with the City to decrease the speed limit on Dubuque Avenue to 25 mph.
b) The applicant shall coordinate with the City to reduce the height of the fence along the retaining wall on Dubuque Avenue to the south of the project site to improve visibility of approaching northbound traffic.
Additionally, the applicant shall coordinate with the City and adjacent properties as reasonably feasible to address existing sight distance obstructions at the intersection of Dubuque Avenue and the shared Caltrain / project driveway as follows:
c) Coordinate with Caltrain to relocate or reduce the height of the existing “Caltrain Station Parking” sign located on the south side of the shared Dubuque Avenue driveway to provide adequate sight distance between northbound Dubuque Avenue traffic and vehicles exiting the shared Dubuque Avenue Prior to
issuance of
Certificate of
Occupancy
Applicant
Confirm
implementation or
plan for
implementation
SSF Public
Works
Department
580 DUBUQUE AVENUE PROJECT ‐ MMRP PAGE 9 OF 9
Mitigation Measure Timing/ Schedule Implementation Responsibility Verification
Monitoring Action Monitoring Responsibility Date Completed driveway.
d) Coordinate with the property owner to the north to clear obstructing signs from the fence and vegetation from the corner of their property to provide adequate sight distance between southbound Dubuque Avenue traffic and vehicles exiting the shared Dubuque Avenue driveway.