• NPDES - Clean Water Requirements


    1. Schedule excavation and road maintenance activities for dry weather, if feasible. (MUNI-63)

    2. Do not perform major equipment repairs within the public right-of-way. (MUNI-64)

    3. When refueling or maintaining vehicles and equipment off-site, use a location away from storm drain inlets and creeks. (MUNI-65)

    4. Recycle used motor oil, diesel oil, concrete, broken asphalt, etc., whenever possible. (MUNI-66)

    5. Provide proper containment of diesel fuel used to lubricate or clean equipment or parts. (MUNI-67)

    6. Store adequate emergency materials at the job-site (e.g. sandbags, spill kits, etc,) to contain a discharge in the event of mechanical breakdown and pollutants are released to the storm drain system.

    7. Train employees in using these general practices for road repair and maintenance activities. (MUNI-68)


    1. Take measures to protect storm drain inlets prior to breaking up asphalt or concrete (e.g., cover inlets). Clean afterwards by sweeping all related materials. (MUNI-69)

    2. After breaking up old pavement, remove and dispose of properly. (MUNI-70)

    3. During saw-cutting operations, block or berm around storm drain inlets using sandbags or an equivalent filter device, or absorbent materials such as pads, pillows and socks to contain slurry. If slurry enters the storm drain system, have the material removed to the maximum extent practicable. (MUNI-71)

    4. Remove saw-cut slurry (e.g., with a shovel or vacuum) before leaving at the end of the day. (MUNI-72)


    1. No stockpiling of materials in streets, gutter areas or near storm drain inlets or creeks. (MUNI-73)

    2. Protect storm drain openings before applying seal coat, slurry seal, etc. Prevent to the maximum extent practicable material from entering storm drain inlets and sweep up debris. (MUNI-74)

    3. Do not wash excess material from exposed aggregate concrete or similar treatments into an unprotected street or storm drain inlet. Designate an unpaved area for sweeping up and temporarily storing of excess materials. Properly dispose and/or recycle excess materials. (MUNI-75)

    4. Use only as much water as necessary for dust control to avoid runoff. (MUNI-76)

    5. Sweep up as much material as possible and dispose of properly. Only wash down streets if runoff is controlled or contained. (MUNI-77)

    6. Catch drips from parked paving equipment with pans or absorbent material placed under the machines or berm the area around them to the maximum extent practicable. (MUNI-78)

    7. Clean up all spills and leaks from other equipment and work site areas using "dry" methods (absorbent materials and/or rags). Properly dispose of absorbent materials and rags. If spills occur on dirt areas, dig up and remove contaminated soil properly and in a timely manner. (MUNI-79)

    8. Prior to completion of the job, remove stockpiles (asphalt materials, sand, etc.). (MUNI-80)

    9. If it rains unexpectedly, take appropriate action to prevent pollution of Stormwater runoff (e.g., divert runoff around work areas). (MUNI-81)


    1. Store spill absorbent materials on vehicles to be used in the event of a spill. (MUNI-82)

    2. Contain and sweep up waste materials, and dispose of them properly according to the Material Safety Data Sheet. (MUNI-83)