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The following requirements apply to all industrial, commercial and municipal facilities and activities:
(a) The owner or operator shall install and maintain BMPs and implement a pollution prevention program appropriate to the activity, as specified in the following areas and manner:
(1) Stormwater BMP training
(A) Provide stormwater BMP training at least annually to all operators, employees, and workers with responsibility for activities that could result in unauthorized discharges of pollution or non-stormwater.
(B) Training shall address the pollution and non-stormwater generating activities conducted at the facility, the pollutants or risk of non-stormwater discharge associated with those activities, and the BMPs or pollution prevention practices used to minimize or eliminate the discharge of non-stormwater and pollutants.
(C) The following BMP categories shall be included in training, where applicable:
i. Preventive maintenance.
ii. Good housekeeping.
iii. Proper waste disposal.
iv. Non-stormwater disposal alternatives.
v. Equipment/vehicle maintenance and repair.
vi. Spill response, containment, and recovery.
vii. Recycling, re-use, and volume reduction in materials, water consumption and wastes.
viii. BMP maintenance.
(2) Where required to implement a SWPPP, retain on site a copy of a current, complete, site-specific SWPPP and make it available for review by the authorized enforcement official, upon request.
(3) Review the operations and procedures relating to protecting the stormwater conveyance system and receiving waters from pollutants and prohibited, non-stormwater discharges at least annually.
(4) Implement pollution prevention methods or those stormwater pollution prevention practices that are generally recognized in that discharger's industry or business to eliminate or reduce pollutants in run-off to the MEP and eliminate the discharge of non-stormwater in an amount or manner beyond what is allowed by this Chapter.
(A) The property on which the business activity is located shall be inspected for accumulations of debris, litter, waste, organic matter, such as leaves or cut grass or other materials. Such accumulations shall be removed, transported and disposed of in accordance with this Chapter.
(B) Areas where work is being actively conducted shall be cleaned daily using dry clean-up methods such as sweeping, wiping, vacuuming, or raking. Wet clean-up methods such as hosing may only be used if precautions have been taken to prevent the discharge of wash water or other materials to the stormwater conveyance system or receiving waters.
(6) Liquid waste management
(A) Wet clean-up or cleaning methods such as hosing, steaming or pressure washing are prohibited except where adequate precautions have been taken to prevent the discharge of wash water and pollutants into the stormwater conveyance system or receiving waters.
(B) Disposal of slurries to the stormwater conveyance system or receiving waters is prohibited.
(C) Rinse water shall be confined to a designated area such as a sanitary sewer, dead-end sump, process treatment system, or hole where water percolates or evaporates and solids are removed for collection and disposal. Rinse water and solids shall be re-used, recycled, or disposed of in accordance with this Chapter.
(D) Wash water shall be directed to an approved sanitary sewer or landscaped locations.
(E) Wash racks.
i. Wash rack areas shall have perimeter control and be properly sloped to a grated floor drain.
ii. Wash rack areas shall drain to the sanitary sewer or to a holding tank, except that wash racks for animals may drain to the ground in accordance with this Chapter.
(F) Disposal of wastewater to the stormwater conveyance system, receiving waters, or the ground, is prohibited.
(G) If provided, pump-out services for boats, portable toilets, or other holding tanks shall be conducted in a manner that prevents the release of sewage to the stormwater conveyance system or receiving waters.
(H) Wastewater shall be disposed to the sanitary sewer at the job site or to a holding tank. Disposal of wastewater contained in holding tanks shall be disposed of to the sanitary sewer at the business's company headquarters or at an approved facility.
(I) Discharging backwash wastewater to the stormwater conveyance system or receiving waters is prohibited. Backwash wastewater may be disposed to the sanitary sewer; to a holding tank or settling pond; or where allowed by this Chapter, by infiltration to the soil.
(J) Under the limited circumstances allowed by this Chapter, pool and spa water intended for discharge to the stormwater conveyance system shall be dechlorinated or debrominated prior to discharge.
(K) Under the limited circumstances allowed by this Chapter, pool and spa water discharged after acid washing shall be neutralized to a pH of 7.2 - 8.0.
(L) If rinse water from the cleaning of portable sanitary toilet closets cannot be properly disposed of to the sanitary sewer at a job site, it shall be contained prior to disposal at the service facility or other approved facility.
(M) Wash and rinse water from building and pavement washing that cannot be properly disposed of at the job site shall be collected and contained for recycling, reuse, or proper disposal.
(N) Where irrigation tail-water return ponds are used, the ponds shall be designed with the appropriate vertical separation between the base of the pond and the seasonal high groundwater mark and must be lined or managed to prevent the movement of water-soluble chemicals to the groundwater and to stormwater flows.
(7) Materials and waste management.
(A) Spill prevention and response.
i. Materials and equipment necessary for spill response shall be maintained and kept readily accessible.
ii. All operators, employees, and workers conducting potential discharge activities shall be trained in their proper use.
iii. Spills and leaks shall be promptly cleaned up and the generated waste disposed of in accordance with the applicable federal, state and local laws and regulations.
(B) Hazardous materials and hazardous wastes.
i. Hazardous materials and wastes shall be stored, managed, and disposed in accordance with applicable federal, state and local laws and regulations.
ii. Hazardous materials and wastes shall be stored above the ground. Where practicable, provide overhead coverage for all outside hazardous materials or waste storage areas. If overhead coverage is not available, stored materials shall be covered with an impervious material such as a tarp or other similar method.
iii. Paints, coatings, thinners, and other materials shall be disposed of in accordance with this Chapter.
iv. Secondary containment of hazardous materials or waste shall be provided around storage areas if the authorized enforcement official has determined that a significant potential exists to discharge materials or wastes to the stormwater conveyance system or receiving waters.
v. Hazardous waste storage areas shall be inspected by the owner or operator, at least once prior to the rainy season and monthly during the rainy season.
vi. Pesticides and other chemical products shall be used, stored, and disposed of in accordance with applicable federal, state, and local laws and regulations.
vii. The outdoor application of fertilizers and pesticides is prohibited during rainfall.
viii. Pesticide use shall be reduced whenever practical in areas where recurring applications of pesticides are performed.
(C) Solid, non-hazardous materials and waste.
i. Trash storage and disposal areas shall be kept clean and free of debris.
ii. Dumpsters, grease bins, grease traps, and interceptors, and other containers shall be maintained in a clean and leak- proof condition and shall be kept securely closed when not in use.
iii. Materials and equipment necessary for the clean-up of trash and debris shall be maintained and kept readily accessible.
iv. Loose aggregate, mortar, and dust shall be routinely cleaned up using dry clean-up methods such as sweeping or vacuuming. Wet methods may be used only if necessary to adequately clean equipment for reuse, or where water must be used to lubricate and flush a cut, but only if performed in accordance with this Chapter.
v. All areas where livestock, horses or other large animals are confined shall be bermed or curbed in a manner that avoids a discharge of manure to the stormwater conveyance system or receiving water. If berms or curbs are not practicable, manure shall be cleaned up at least twice weekly and must be composted or properly stored prior to disposal.
vi. Wastes from small animals (e.g., dogs and cats) shall be cleaned up and properly disposed of at least weekly.
(D) Loading and unloading.
i. Storm drain inlets located within or down-gradient of loading or unloading areas shall be covered or otherwise protected during loading and unloading activities to prevent the entry of pollutants and prohibited non-stormwater discharges into the stormwater conveyance system or receiving waters.
ii. Equipment and supplies stored in loading and unloading areas shall be properly maintained to prevent leaks and spills to the stormwater conveyance system or receiving waters, and to prevent their contact with rainfall and run-on.
i. Outdoor storage areas of materials and equipment shall be configured using berms, dikes, or other diversion structures or other measures that elevate stored materials and equipment from site surfaces.
ii. Containers shall be kept in a leak-proof condition, securely closed when not in use, and stored in a manner that protects them from contact with precipitation or surface waters.
iii. Storage of cement and masonry materials shall be above ground and covered.
iv. Except as required to maintain critical coarse sediment supply pursuant to Section 67.811(b)(5)(C), placement of stock piles within any drainage system is prohibited.
v. Stockpiles and bulk materials, such as soil, fertilizer, and potting mixture shall be covered during windy and rainy conditions where practicable. Prior to the onset of predicted rain, stockpiles shall be covered and bermed to prevent contact with stormwater.
(8) Vehicles and equipment.
(A) All vehicles and equipment shall be properly maintained and inspected to ensure their proper functioning to prevent discharges.
(B) Vehicles and equipment shall not be washed in areas where wash water or rinse water will drain to the stormwater conveyance system or receiving waters.
(C) Infiltration of wash or rinse water to pervious surfaces is allowed with a minimum of 10 feet separation between the groundwater and the pervious surface, except that wash or rinse water generated from cleaning engines, mechanical parts, or heavy equipment shall not infiltrate a pervious surface.
(D) The use of hose-off or single-use engine degreasing chemicals is prohibited, unless captured and properly disposed.
(E) Maintenance and repair equipment shall be kept clean to avoid the build-up of grease and oil.
(F) Fluids shall be drained from any retired vehicles or equipment stored on site.
(G) Vehicle and equipment maintenance and repair work such as body work shall be conducted indoors or under cover, where practicable. If work cannot be conducted indoors or under cover, other BMPs shall be implemented to prevent the discharge of pollutants into the stormwater conveyance system or receiving waters. Discharge of non-stormwater to the stormwater conveyance system is prohibited.
(H) Major repair and maintenance work on boats over or in the water is prohibited. Touch-up painting, tune ups, or other similar activities are not considered major repair or maintenance work, but may only be conducted over or in the water if adequate precautions have been taken to prevent the entry of pollutants into the water.
(9) Outdoor areas - housekeeping and grounds keeping practices.
(A) Storm drain inlets located within or down gradient of the activity shall be covered or otherwise protected from the entry of pollutants and non-stormwater during the work activity.
(B) Landscaping, grounds keeping and agriculture unless exempt pursuant to Section 67.805(h).
i. Except as required to maintain critical coarse sediment supply pursuant to Section 67.811(b)(5)(C), exposed slopes shall be stabilized as soon as possible.
ii. Paved surfaces such as sidewalks shall be cleaned regularly using dry clean-up methods such as sweeping or vacuuming. Hosing is permissible only after surfaces have previously been cleaned using dry methods, and only if precautions have been taken to prevent the discharge of run-off to the storm drain.
iii. Business, industrial and municipal facilities owners and their contractors shall clean-up and properly dispose of spills from any pesticides, herbicides and fertilizers to non-porous surfaces. These materials shall be stored in closed, labeled containers, such as in covered areas, off the ground, or under protective tarps, and in a manner that will not lead to a discharge. Disposal of pesticides, herbicides and fertilizers to the stormwater conveyance system and receiving waters is prohibited.
(C) Parking lots and vehicle storage areas.
i. Wet clean-up methods may only be used where adequate precautions have been taken to prevent the entry of wash water and pollutants into the stormwater conveyance system or receiving waters.
ii. Vehicle maintenance and repair operations with the potential to release non-stormwater or pollutants are prohibited at commercial parking lots and storage facilities.
i. Materials which may contaminate stormwater shall not be stored on rooftops unless adequate precautions have been taken to prevent their contact with stormwater.
ii. Equipment such as emergency generators, HVAC systems and other similar items located on rooftops shall be inspected and preventive maintenance conducted to prevent leaks and spills.
iii. Substances such as bird droppings, grease, leaves, that have accumulated on rooftops shall be removed, as practicable, to prevent or reduce the discharge of contaminants directly or indirectly to the stormwater conveyance system or receiving waters.
iv. Where feasible, roof downspouts shall be routed away from work areas and toward pervious areas such as lawns, except where required under Section 67.811.
(b) Other requirements.
(1) Any commercial, industrial, or municipal facility or activity operating under the statewide Industrial General Permit shall provide the following documents for on-site review by the authorized enforcement official as applicable, and if requested:
(A) The Notice of Intent letter or a Waste Discharge Identification Number issued by the SWRCB.
(B) A SWPPP satisfying the requirements of the Industrial General Permit.
(C) A monitoring program satisfying the requirements of the Industrial General Permit.
(D) Training records satisfying the requirements of the Industrial General Permit.
(2) Any discharger whose facilities or activities are not in compliance with this Chapter, or any discharger or category of dischargers determined to pose a significant threat to water quality, may be required to implement additional controls as determined by the authorized enforcement official. The authorized enforcement official may require dischargers to maintain, on site, written documentation of these additional requirements, and to provide such documentation upon request.
(Added by Ord. No. 9424 (N.S.), effective 2-20-02; amended by Ord. No. 9518 (N.S.), effective 1-10-03; amended by Ord. No. 9926 (N.S.), effective 4-11-08; amended by Ord. No. 10096 (N.S.), effective 1-7-11; amended by Ord. No. 10385 (N.S.), effective 6-12-15; amended by Ord. No. 10410 (N.S.), effective 2-26-16)