RES 99074 - Laserfiche WebLink

Each individual agricultural operator within the Plan Area shall submit a grading plan to the City Engineer prior to the installation of any new vineyards or other crops. The grading plan shall identify features for site drainage, nmoff control, and appropriate best management practices for control of erosion and sedimentation. SIGNIFICANT EFFECT Impact 4.3-2: Development Runoff Quality. Construction activities and post-construction site uses associated with the project could result in degradation of water quality in nearby surface water bodies by reducing the quality of storm water runoff. This would be considered a potentially significant impact. Changes or alterations have been required in, or incorporated into, the project which mitigate or avoid the significant effects on the environment. Facts in Support of Findin~ The City of Pleasanton has adopted the following measures which will reduce potential hydrology and water quality impacts to a less-than-significant level: Mitigation Measure 4.3-2: Development Runoff Quality.. Projects disturbing more than five acres of land during construction shall be required to file a Notice of Intent (NOD to be covered under the State National Pollutant Discharge Elimination System CNPDES) General Construction Permit for discharges of storm water associated with construction activity. The developer must propose control measures that are consistent with the permit. A Storm Water Pollution Prevention Plan (SWPPP) shall be developed and implemented for each site covered by the permit. A SWPPP should include Best Management Practices (BMPs) designed to reduce potential impacts to surface water quality through the construction and life of the project. A SWPPP shall be prepared such that, when properly implemented, it will reduce or eliminate impacts to surface water quality from all phases of the project. Required elements of the SWPPP include: Construction Storm Water Management Controls. These controls shall include practices to minimize the contact of construction materials, equipment, and maintenance supplies (e.g., fuels, lubricants, paints, solvents, adhesives) with storm water. The SWPPP shall specify properly designed centralized storage areas that keep these materials out of the rain. An important component of the storm water quality protection effort is knowledge of the site supervisors and workers. To educate onsite personnel and maintain awareness of the importance of storm water quality protection, site supervisors shall conduct regular tailgate meetings to discuss pollution prevention. The frequency of the meetings and required personnel attendance list shall be specified in the SWPPP. The SWPPP shall specify a monitoring program to be implemented by the construction site supervisor, and must include both dry and wet weather inspections. City of Pleasanton personnel will conduct regular inspections to ensure compliance with the SWPPP (this is already standard procedure). Regional Water Quality Control Board (RWQCB) personnel, who may make Vineyard Avenue Corridor Specific Plan Draft EIR -12- Findings