RECOMMENDATION(S): (CONT'D)
DIRECT the Director of Department of Conservation and Development, or designee, to file a Notice of Exemption with the County Clerk, and
AUTHORIZE the Public Works Director, or designee, to arrange for payment of a $25 fee to the Department of Conservation and Development for processing, and a $50 fee to the County Clerk for filing the Notice of Exemption.
FISCAL IMPACT:
Estimated Project cost: $91,600. (67% Stormwater Utility Assessment Funds and 33% Local Road Funds)
BACKGROUND:
The purpose of this Project is to install new trash capture devices and replace existing trash capture devices to reduce trash flow into creeks and reduce maintenance costs. The County is a permittee of the Regional Water Quality Control Board’s Municipal Regional Stormwater Permit (MRP 2.0 and Tentative Order MRP 3.0). Under this permit, the County is required to reduce the amount of trash that reaches San Francisco Bay by 90% in 2023. Full trash capture is one of the control measures used to reduce trash from a moderate, high, or very high level, as specified on the County’s trash generation maps, to a low trash rate.
The two types of trash capture devices that will be installed are connector pipe screens (full trash capture device) and automatic retractable screens (partial trash capture device). The connector pipe screens are installed in storm drains in front of the outlet pipe of the drain’s catch basin to prevent trash from flowing out. The automatic retractable screens are installed in front of curb inlets to prevent trash from entering the catch basin of the storm drain system. The screens automatically retract during large storms to prevent flooding. The County will also remove existing trash capture devices, referred to as baskets, and replace them with connector pipe screens.
CONSEQUENCE OF NEGATIVE ACTION:
The inability to proceed with the Project will seriously impede the County’s ability to comply with the trash load reduction requirements of the next re-issuance of its Municipal Regional Stormwater Permit (MRP 3.0), which is scheduled to go into effect July 1, 2022.