Table 9211 Typical Source Controls

Activity or Area

S1.10—Fueling stations (both commercial and private) S1.20—Vehicle/equipment wash and steam cleaning S1.30—Loading and unloading liquid materials

S1.40—Above-ground tanks for liquid storage

S1.50—Container storage of liquids, food wastes, or dangerous wastes

S1.60—Outside storage of raw materials, by-products, or finished product (i.e., sand and gravel, lumber, concrete and metal)

S1.70—Outside manufacturing

S1.80—Emergency spill cleanup plans

S1.90—Vegetation management /integrated pest management

S2.00—Maintenance of storm drainage facilities


Covered, concrete-paved pump island with separate drainage

Wash building or designated paved area with separate drainage containing oil-water separator Conduct activities inside building or at dock with overhang or skirts to prevent drainage to storm drains; rail and tanker truck transfers require drip pans or paved areas, and operations and spill cleanup plans Diked secondary containment area with stormwater drainage passing through oil-water separator Containers kept indoors or under designated covered area with separate drainage and secondary containment for liquid wastes Place materials under covered area, place temporary plastic sheeting over material, or pave the area and install treatment drainage system Alter, enclose, cover, or segregate the activity; discharge runoff to sewer or process wastewater system; or use stormwater BMPs Required for storing, processing, or refining oil products and producers of dangerous wastes Specific BMPs for seeding and planting, and pest management, including use of pesticides Specific BMPs for maintenance (inspection, repair, and cleaning), disposal of contaminated water, and disposal of contaminated sediments

Source: Stormwater Management Manual for the Puget Sound Basin (Ecology 1992).

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