Article 2 — Prohibition of Non-Stormwater Discharges

6920 - Prohibition.

a.

No person shall cause, commit, allow, or contribute to a non-stormwater discharge to the County Storm Drain System or to Receiving Waters, unless: (i) in compliance with a discharge permit or (ii) the discharge is listed below and has not been determined to cause or contribute to a Municipal Stormwater Permit violation:

(1)

Dechlorinated water line flushing;

(2)

Landscape irrigation;

(3)

Diverted stream flows;

(4)

Rising ground waters;

(5)

Uncontaminated ground water infiltration [as defined at 40 CFR 35.2005(20)];

(6)

Uncontaminated pumped groundwater;

(7)

Discharges from potable water sources;

(8)

Discharges from foundation or footing drains;

(9)

Air conditioning condensation;

(10)

Irrigation water;

(11)

Natural springs;

(12)

Water from crawl space pumps;

(13)

Lawn watering;

(14)

Non-commercial car washing by residents or non-profit organizations;

(15)

Flows from riparian habitats and wetlands;

(16)

Dechlorinated/debrominated swimming pool discharges;

(17)

Discharges from emergency fire fighting activities;

(18)

Discharges which are not a source of any pollutant to the County Storm Drain System or Receiving Waters and which have been given a written exemption by the Director with concurrence by the Regional Board.

b.

No person shall cause, commit, allow, or contribute to a non-stormwater discharge to the County Storm Drain System from the following:

(1)

Washing or cleaning of gas stations, auto repair garages, or other types of automotive service facilities unless in compliance with a discharge permit;

(2)

Mobile auto washing, carpet cleaning, steam cleaning, sandblasting and other such mobile commercial and industrial operations unless in compliance with a discharge permit;

(3)

Areas where repair of machinery and equipment which are visibly leaking oil, fluid or antifreeze is undertaken unless in compliance with a discharge permit;

(4)

Storage areas for materials containing grease, oil, or other hazardous substances, and uncovered receptacles containing hazardous materials;

(5)

Swimming pools that exceed 0.1 mg/L for chlorine/bromine and 250 mg/L for chloride;

(6)

Swimming pool filter backwash;

(7)

Decorative fountains and ponds;

(8)

Industrial/commercial areas, including restaurant mats, unless in compliance with a discharge permit;

(9)

Concrete truck cement, pumps, tools, and equipment washout;

(10)

Spills, dumping, or disposal of other materials, such as:

(a)

Litter, landscape and construction debris, garbage, food, animal waste, fuel or chemical wastes, batteries, and any other materials which have the potential to adversely impact water quality;

(b)

Any pesticide, fungicide or herbicide;

(11)

Stationary and mobile pet grooming facilities;

(12)

Trash container leachate.

(Ord. No. 4450, 7-17-2012)

6921 - Permit for exemptions.

A County discharge permit may be required prior to an exempt non-stormwater discharge to ensure compliance with the required conditions for non-stormwater discharges listed in the municipal stormwater permit.

(Ord. No. 4450, 7-17-2012)

6922 - Termination of non-stormwater discharge.

In addition to any other remedy provided by this Chapter, the Director may, by written notice, require persons responsible for a non- exempt non-stormwater discharge to immediately, or by a specified date, discontinue the discharge and, if necessary, take measures to eliminate the source of the discharge to prevent the occurrence of future illicit discharges.

(Ord. No. 4450, 7-17-2012)