APPLICATION FOR PROPOSITION A FUNDING FOR

STORM WATER CDS CLARIFIER AT PIER AVENUE DRAIN

Recommendation:

It is recommended that the City Council:

1. Adopt the attached resolution authorizing the application for grant funds from the Los Angeles County Department of Public Works 1996 Prop A Santa Monica Bay Competitive Grant Program for Installation of Continuous Deflection Screened (CDS) Clarifier Units.
2. Authorize the expenditure of $52,500 as the 15% matching funds as required under Proposition A.

Background:

The Clean Water Act requires that Cities reduce the amount of pollutants in storm water runoff to the maximum extent practicable. To achieve this goal, the California Regional Water Quality Control Board has issued an NPDES permit requiring Cities to implement Best Management Practices (BMP's) to improve the quality of storm water runoff.

Analysis:

Storm water runoff from a large portion of Hermosa Beach is carried by the Pier Avenue drain. This drain carries trash and other pollutants to the beach and ocean. Los Angeles County is the owner of this drain and other large drains throughout the City. Los Angeles County has expressed an interest in working in conjunction with the City of Hermosa Beach to install a continuous deflection screened clarifier at the outlet of the Pier Avenue Drain to remove sediment and organic pollutants, such as oil and grease. This treatment unit is considered to be a structural BMP. Under Proposition A, up to 85% of the capital cost of structural BMP's is reimbursable.

Scope of Work:

• Select the location and size of a CDS clarifier at the drain outlet.
• Installation of the CDS clarifier.
• Inspect and test the material accumulating in the clarifier on a regular basis to establish a future cleaning frequency.
• Cleaning and disposal of materials collected by the CDS clarifier.

Fiscal Impact:

The overall cost of the clarifier program is $350,000. Proposition A funds will cover $297,500. The City contribution will be $52,500, less any contribution by Los Angeles County.

The City of Hermosa Beach has budgeted a total of $42,284 in the Sewer/Storm Drain Division, account number 160-3102-4201, for compliance with the NPDES Storm Water Permit ($27,284 for federal and state regulatory requirements related to NPDES, $15,000 for contract services for Santa Monica Bay Program, also related to NPDES). From these funds $19,500 is reserved for installation of the proposed catch basin inserts (council agenda 1h dated November 24, 1998). It is recommended that the remaining $22,784 funds balance plus an additional $29,716 from the Sewer Fund be appropriated as matching funds to install the CDS Clarifier.

The cleaning and maintenance costs are estimated at $10,000 annually. Proposition A funds will not cover cleaning and maintenance costs after the first year.

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