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(a) No responsible party shall discharge, or cause to be discharged from the municipal storm drain system or watercourses, any materials, including, but not limited to, pollutants or waters containing any pollutants that cause or contribute to a violation of applicable water quality standards, other than stormwater. (Ord. 2532, § 1, 5/26/2015)

(b) Discharges of stormwater into the MS4 or waters of the U.S. in a manner causing or threatening to cause a condition of pollution or nuisance as defined in California Water Code §13050 are prohibited. (Ord. 2532, § 1, 5/26/2015)

(c) The following types of discharges will be considered authorized non-stormwater discharges to the storm drain system and watercourses when properly managed to ensure, to the maximum extent practicable, that no potential pollutants are present, and therefore, shall not be considered illicit discharges unless determined to cause a violation of the provisions of the Clean Water Act, Porter-Cologne Act, this Chapter or other applicable laws and/or regulations: (Ord. 2532, § 1, 05/26/2015)

(1) Water line flushing;

(2) Individual residential car washing;

(3) Diverted stream flows;

(4) Rising groundwater;

(5) Uncontaminated groundwater infiltration to separate storm sewers;

(6) Uncontaminated pumped groundwater;

(7) Discharges from potable water sources;

(8) Foundation drains;

(9) Air conditioning condensation;

(10) Springs;

(11) Water from crawl space pumps;

(12) Footing drains;

(13) Flows from riparian habitats and wetlands;

(14) Dechlorinated swimming pool discharges;

(15) Incidental runoff from landscaped areas; and

(16) Discharges or flows from fire-fighting operations.

(d) This prohibition shall not apply to any non-stormwater discharge permitted under an NPDES permit, waiver, or waste discharge order issued to the discharger and administered by the State of California under authority of the Federal Environmental Protection Agency, provided that the discharger is in full compliance with all requirements of the permit, waiver, or order and other applicable laws and regulations. (Ord. 2532, § 1, 5/26/2015)

(e) With written concurrence of the Regional Water Quality Control Board, the County may exempt in writing other non-stormwater discharges which are not a source of pollutants to the storm drain system or waters of the U.S. (Ord. 2532, § 1, 5/26/2015)

(f) Notwithstanding the requirements of this Chapter, the County may require, by written notice, that a responsible party immediately, or by a specified date, discontinue an illicit discharge and, if necessary, take measures to eliminate the source of the discharge to prevent the occurrence of future illicit discharges. (Ord. 2532, § 1, 5/26/2015)