Mitigation Monitoring and Reporting Matrix (continued)

Significant Impact Being Mitigated

Mitigation Measure

Responsibility for Implementation

Enforcement Responsibility

Monitoring Responsibility/ Frequency

Actions Indicating Compliance

Hazards and Hazardous Materials (cont.)

Routine use, storage,

4.G-2g: Prior to issuance of a grading permit, all grading

Grading contractors

City of Brisbane City

The City Engineer shall

Approved grading plans in

transport, and

specifications for OU-1 and OU-2 shall be developed in

Engineer

review all grading plans for

compliance with applicable

disposal of

accordance with RWQCB and DTSC requirements

compliance with RWQCB

RWQCB or DTSC

hazardous materials

regarding soil vapor barriers, and incorporated into the

or DTSC requirements for

requirements, Mitigation

DSP, DSP-V, CPP, &

CPP-V scenarios

final grading plan. Any installation of utilities in areas that have adopted soil capping remediation strategies shall be located above the contaminated soil and

soil vapor barriers, Mitigation Measure 4.G-2g and other City EIR

Measure 4.G-2g, and other City EIR mitigation requirements.

groundwater areas in accordance with RWQCB and

mitigation requirements

DTSC requirements. Where gravity and utility force

and shall approve only

mains require encroachment into contaminated areas,

those grading plans that

special construction details and mitigation measures

are in conformance with

shall be developed during the preparation of the final

those requirements.

RAPs for OU-1 and OU-2 as approved by the RWQCB and DTSC and in accordance with Soil and Groundwater Management Plans. Final RAPs shall include overseeing agency (DTSC or RWQCB) approved Human Health Risk Assessments which include inhalation risks and are based on proposed land

The City Engineer shall monitor site grading on a minimum monthly basis to ensure compliance with this mitigation measure.

uses.

Routine use, storage,

4.G-2h Construction of all new structures within the

Building construction

City of Brisbane Building

The Community

Site-specific development

transport, and

former landfill footprint and within OU-1 and OU-2, as

contractors for sub-slab

Official in relation to

Development Director shall

approvals and construction

disposal of

well as on site areas within 1,000 feet of the waste

vapor barriers

construction permits

include as conditions of

permits for buildings within

hazardous materials

DSP, DSP-V, CPP, &

CPP-V scenarios

material footprint shall incorporate sub-slab vapor barriers to minimize potential vapor intrusion into buildings. Further, all structures built on within 1,000 feet of the landfill footprint shall be equipped with automatic combustible gas sensors in sub-floor areas and in the first floor of occupied interior spaces of

Baylands developer for the required centralized sensor monitoring and recording system

San Mateo County Health System (LEA) and CalRecycle in relation to ongoing monitoring of trace gases

approval for all development provision of a centralized gas sensor monitoring and recording system, including provisions for its

1,000 feet of the waste material footprint, including ongoing gas monitoring in accordance with the requirements of Title 27 as specified in Mitigation

buildings. A centralized sensor monitoring and

maintenance in perpetuity.

Measure 4.G-2h.

recording system shall also be provided. Gas monitoring for trace gases shall be conducted in accordance with the requirements of Title 27, for 30 years or until the operator receives authorization from the local enforcement agency (LEA) and CalRecycle to discontinue monitoring upon demonstration by the operator that there is no potential for trace gas migration into onsite structures.

The City Building Official shall review all plans for construction of structures within the former landfill footprint and within OU-1 and OU-2, as well as onsite areas within 1,000 feet of the waste material

footprint to ensure the

provision of sub-slab vapor

barriers to minimize

potential vapor intrusion

into buildings.