Turlock Municipal Code Art. 4 Pollutant Reduction

Any person engaged in activities that may result in pollutants entering the MS4 shall undertake the measures set forth below to reduce the risk of non-storm water discharge and/or pollutant discharges in storm water.

(1199-CS, Added, 9/23/2014)

Each industrial discharger, discharger associated with construction activity, or other discharger subject to any general or individual storm water permit issued by the US EPA, the State Water Board, or the Regional Water Board shall comply with the requirements of such permit.

(1199-CS, Added, 9/23/2014)

Every person undertaking any activity or use that may cause or contribute to storm water pollution or contamination, illicit discharges, or non-storm water discharges shall comply with BMPs, pollution prevention techniques, and source control requirements, including related to the storage and parking of vehicles, as may be reasonably established by the Enforcement Official.

(1199-CS, Added, 9/23/2014)

(a) Outdoor storage. In outdoor areas, no person shall openly or improperly store grease, oil, petroleum products, hazardous substances, motor vehicles, machine parts, or other objects in a manner that may leak grease, oil, or other hazardous substances, without an approved spill containment system or approved sand-oil separator. To prevent the discharge of grease, oil, petroleum, or other hazardous substances from the property, the City may require the installation of a spill containment system of dikes, walls, barriers, berms, or other devices as required. No person shall operate a spill containment system that allows incompatible liquids to mix and thereby create a hazardous condition.

(b) Storm water pollution prevention plan (SWPPP).

(1) The Enforcement Official may require any business in the City engaged in activities that may result in pollutant discharges to develop and implement a SWPPP, which must include an employee training program.

(2) Business activities that may require a SWPPP include, but are not limited to, maintenance, storage, manufacturing, assembly, equipment operations, vehicle loading or fueling, or other businesses where cleanup procedures are carried out partially or wholly outdoors.

(c) Coordination with hazardous materials release response plans and inventory. Any business requiring a hazardous materials release response and inventory plan, under Chapter 6.95 (commencing with Section 25500) of Division 20 of the California Health & Safety Code, shall include in that plan provisions for compliance with this chapter, including the provisions prohibiting unauthorized non-storm water discharges and illicit discharges, and requiring the release of pollutants to be reduced to meet applicable water quality standards and the best available technology economically achievable.

(d) Coordination with hazardous waste generator contingency plan and emergency procedures. Any business requiring a hazardous waste generator contingency plan and/or emergency procedures, pursuant to California Code of Regulations, Title 22, Sections 66265.51 to 66265.56, shall include in that plan provisions for compliance with this chapter, including the provisions prohibiting unauthorized non-storm water discharge and illicit discharges, and requiring the release of pollutants to be reduced to meet applicable water quality standards and the best available technology economically achievable.

(1199-CS, Added, 9/23/2014)

(a) Any person performing construction in the City shall prevent pollutants from entering the MS4 and comply with all applicable Federal, State, and local laws, ordinances, rules or regulations, including but not limited to, the general permit for storm water discharges associated with construction activity and Article 1, Grading, Erosion, and Sediment Control, of Chapter 7-4 TMC, Excavations, as existing or as hereafter amended.

(b) The Enforcement Official may develop controls as appropriate to minimize the long-term, post-construction discharge of storm water pollutants from new development(s), or modification(s) to existing development(s). Controls may include source control measures to prevent pollutants from entering storm water and/or structural and nonstructural treatment controls designed to remove pollutants from storm water.

(c) To minimize the discharge and transport of pollutants, the City may require, at its discretion, any development project to control the volume, rate, and quality of storm water runoff from the project site to prevent any deterioration of receiving water quality, which would impair the designated and existing beneficial uses. The Director shall establish standards and guidelines implementing BMPs designed to control the rate and volume of storm water runoff from development sites to minimize the discharge and transport of pollutants, including compliance with, at a minimum, the BMPs contained in the California Storm Water Quality Association BMP construction handbooks or equivalent. Acceptable methods and standards for controlling storm water runoff volumes, rates, and pollutant load may include, but are not limited to the following, which are to be used except in areas of known groundwater contamination:

(1) Increasing permeable areas. Avoid placing impervious surfaces on highly porous soil areas; incorporate landscaping and open spaces into the project design; use porous materials or permeable pavement for driveways and walkways; incorporate detention ponds and infiltration pits into the project design; avoid placing pavement and other impervious surfaces in low lying areas.

(2) Directing runoff to permeable areas. Direct storm water runoff away from impermeable areas to swales, berms, green strip filters, gravel beds, and French drains. Install rain gutters and orient them toward permeable areas. Modify the grade of the property to divert flow to permeable areas and minimize the amount of storm water runoff leaving the property. When designing curbs, berms, or other structures, avoid designs that isolate permeable or landscaped areas, or incorporate curb cuts or other pathways for water flow to permeable or landscaped areas.

(3) Maximizing storm water storage for reuse. Use retention structures, subsurface areas, cisterns, or other structures to store storm water runoff for reuse or slow release.

(1199-CS, Added, 9/23/2014)

The following rules and regulations shall apply to all persons using the City's MS4. Failure to comply with any provision, requirement, rule, or regulation under this chapter may be subject to prosecution in accordance with TMC 1-2-01:

(a) The disposal of petroleum products (oil and grease), pesticides, fertilizers, household or industrial chemicals, industrial process wastewater, domestic sewage, animal waste, or other pollutants into the MS4 is prohibited.

(b) Residential roof drains may not be directly connected to public sidewalks and street gutters, but must discharge into landscape areas or rain barrels.

(c) Any person or entity engaging in activities that may result in pollutants entering the City's MS4 shall undertake all practicable measures to reduce such pollutants. Examples of such activities include the ownership or use of premises that may be a source of pollutants such as parking lots, gasoline stations, industrial facilities, business enterprises, and dwelling units.

(d) Littering. No person shall throw, deposit, leave, blow, keep or permit to be thrown, deposited, placed, blown, left or maintained, any refuse, rubbish, trash, garbage, material or other discarded or abandoned objects, articles, or other litter in or upon any street, alley, sidewalk, storm drain, business place, or upon any public or private property in the City so that the same can become a pollutant by entering the MS4.

(e) Bodies of water. No person shall throw or deposit litter or material in any fountain, pool, lake, stream, irrigation canal, river or any other body of water in a park or elsewhere within the City.

(f) Standards of parking lots, paved areas, and related storm drain systems. Persons owning, operating, or maintaining a paved parking lot, the paved area of a gas station, a paved private street or road, and private storm drains shall, using a dry method such as brooming and absorbents, clean those structures as frequently and thoroughly as practicable to prevent the discharge of pollutants to the City's MS4.

(1) Incidental runoff. Parties responsible for controlling runoff in excess of incidental runoff shall:

(i) Detect and correct leaks within forty-eight (48) hours of learning of the leak;

(ii) Properly design, maintain, and aim sprinkler heads;

(iii) Not irrigate during precipitation events;

(iv) Manage any pond containing water such that no discharge occurs, other than the result of a twenty-five (25) year, twenty-four (24) hour storm event or greater, except as permitted by an approved NPDES Permit.

(1199-CS, Added, 9/23/2014)