§ 54.10 ILLICIT DISCHARGES.
   (A)   Allowable and occasional incidental discharges.
      (1)   The following non-storm water sources are allowed and which the city has determined not to be substantial contributors of pollutants to the MS4:
         (a)   Water line flushing;
         (b)   Landscape irrigation;
         (c)   Diverted stream flows;
         (d)   Rising ground waters;
         (e)   Residential building wash water without detergents;
         (f)   Uncontaminated pumped ground water;
         (g)   Uncontaminated ground water infiltration;
         (h)   Discharges from potable water sources;
         (i)   Foundation drains;
         (j)   Air conditioning condensate;
         (k)   Irrigation water;
         (l)   Springs;
         (m)   Water from crawl space pumps;
         (n)   Footing drains;
         (o)   Lawn watering;
         (p)   Individual residential car washing;
         (q)   De-chlorinated swimming pool discharges;
         (r)   Street wash water;
         (s)   Fire hydrant flushings;
         (t)   Non-commercial or charity car washes;
         (u)   Discharges from riparian areas and wetlands;
         (v)   Discharges in compliance with a separate Oklahoma Pollutant Discharge Elimination System (OPDES) or National Pollutant Discharge Elimination System (NPDES) permit; and
         (w)   Discharges or flows from emergency fire-fighting activities provided that the Incident Commander, Fire Chief or other on-scene fire-fighting official in charge makes an evaluation regarding potential releases of pollutants from the scene. Measures will be taken to reduce any pollutant releases to the maximum extent practicable subject to all appropriate actions necessary for public health and safety.
      (2)   Any discharge that has a current NPDES discharge permit with ODEQ shall be an allowable discharge with the following exceptions:
         (a)   A discharge that results in the city violating its MS4 permit;
         (b)   A discharge the Director determines causes contamination of surface water, stormwater or groundwater within the city; or
         (c)   A discharge that could block or damage the MS4.
      (3)   Other types of discharges determined allowable by the Director.
   (B)   Prohibited discharges. No person shall discharge to a MS4 conveyance, water body, directly or indirectly, any substance other than stormwater or an exempted discharge. Any person discharging stormwater shall effectively prevent pollutants from also being discharged with the stormwater, through the use of best management practices (BMPs), except as permitted in § 54.10(A).
      (1)   It is a violation for any person to improperly dispose of any contaminant into the MS4. Contaminants include, but ane not limited to the following:
         (a)   Trash or debris;
         (b)   Petroleum products, including but not limited to oil, gasoline, grease, fuel oil or hydraulic fluids;
         (c)   Antifreeze and other automotive products;
         (d)   Metals in either particulate or dissolved form;
         (e)   Flammable or explosive materials;
         (f)   Batteries;
         (g)   Paints, stains, resins, lacquers or varnishes;
         (h)   Pesticides, herbicides, or fertilizers;
         (i)   Soaps, detergents or wastewater containing the like;
         (j)   Heated water or steam cleaning wastes;
         (k)   Animal waste or animal carcasses;
         (l)   Leaking sanitary sewers and connections;
         (m)   Recreational vehicle waste;
         (n)   Medical wastes;
         (o)   Collected or loose lawn clippings, leaves or branches;
         (p)   Silt, sediment or gravel;
         (q)   Washing of fresh concrete residue;
         (r)   Junk motor vehicles;
         (s)   Wastewater from the cleaning of fueling stations, auto repair garages or other types of auto repair facilities;
         (t)   Wastewater from mobile auto washing, steam cleaning, mobile carpet cleaning, and other mobile commercial and industrial operations;
         (u)   Discharge from the washing or rinsing of restaurant mats, roof vents, grease traps, garbage bins or cans in such a manner that causes non-storm water to enter the storm drain system;
         (v)   Any hazardous material or waste not listed above;
         (w)   Any spilled pollutants, unless it can be demonstrated that failure to allow the discharge will result in a great peril or hazard to the life, health, welfare, or safety of the public; and
         (x)   Any material that is disposed of in a manner to cause pollutants to be discharged.
      (2)   It is a violation for any person to place, store or locate any material in a manner that causes pollutants to be unreasonably transported by usual atmospheric conditions into the city’s MS4.
      (3)   Storage or stockpiling of hazardous or toxic material within any drainage way, or in its associated floodway or floodplain, is strictly prohibited. Storage or stockpiling of hazardous or toxic material on active construction sites must include adequate protection and/or containment so as to prevent any materials from entering any temporary or permanent stormwater conveyance or drainage way.
      (4)   Spills that have the potential to enter or have entered the city’s MS4 shall be contained, and remediation activity will be implemented which will consists of deploying absorbents, chemical neutralizers and/or booms and water skimmers to contain, neutralize and/or remove the chemicals. Remediation activities shall be the responsibility of the offending party.
(Ord. 1865, passed 8-21-12)