Moraga Municipal Code Ch. 14.52 Stormwater Management

All active and passive construction projects shall have a BMP plan (engineered drawing) and stormwater control measures in compliance with Section 13.04.090 of this code. This code requires a stormwater pollution prevention plan (SWPPP) that meet either the requirements of the requirements of the town of Moraga and the state general construction permit. A stormwater control plan shall also be submitted in compliance with Section 13.04.050 of this code. For sites that do not meet the threshold of Section 13.04.050, a stormwater control plan that incorporates best management practices for site design, source control and treatment control shall be submitted that complies with the requirements of the town of Moraga design guidelines and the town of Moraga engineering standard details.

The only BMP's that may be altered are those in direct conflict with the daily construction activity, as long as the BMP's are restored at the end of the day's construction activity or the start of a storm event, whichever occurs first.

The permittee shall comply with all best management practices and any rules, regulations, standards, ordinances, laws, permits and policies established and or issued by the Federal Environmental Protection Agency, California Water Quality Control Board, and other regional, state, and federal regulatory agencies as applicable.

Construction stormwater control measures shall include, but not be limited to, the following:

A. The faces of cut and fill slopes shall be protected against damage by erosion and the methods utilized for each protection must offer effective erosion control prior to the initiation of, as well as during, the wet season; and

B. Where graded slopes are steeper than five to one or higher than five feet, they shall be protected with a temporary soil stabilization measure such as jute matting or an equivalent mulch until planting is established.

The following documents shall be used as guides for the design and suitability of stormwater control measures and are available in the planning department offices:

A. Association of Bay Area Governments (ABAG) Manual of Standards for Erosion and Sediment Control Measures;

B. California Stormwater Quality Association Best Management Practices Handbook;

C. The Erosion and Sediment Control Field Manual preparedly the regional water quality control board (RWQCB), San Francisco Bay region;

D. Bay Area Stormwater Management Agencies Association "Start at the Source."

(Ord. 210 (part), 2006)