15.80.070 Exceptions to discharge prohibition.
The following discharges to the city’s MS4 are exempt from the otherwise applicable discharge prohibition set forth in Section 15.80.060.
A. Any discharge regulated under a NPDES permit, waiver, or waste discharge order issued to the discharger and administered by the state of California under the authority of the federal environmental protection agency or under state authority, provided the discharger is in full compliance with all requirements of the permit, waiver, or order and other applicable laws and regulations, and provided that written approval has been granted by the city for any discharge to the city’s MS4.
B. Any stormwater containing pollutants that has been reduced to the MEP by the application of BMPs or other management measures set forth in the city’s stormwater management plan.
C. Any discharge from any of the following activities provided that any such discharge is not identified as a significant contributor of pollutants to the city’s MS4 by the director:
1. Water line flushing;
2. Diverted stream flows;
3. Rising ground waters;
4. Uncontaminated ground water infiltration [as defined in 40 CFR 35.2005 (20)] to MS4s;
5. Uncontaminated pumped ground water;
6. Discharges from potable water sources;
7. Foundation drains;
8. Air conditioning condensate;
9. Springs;
10. Water from crawl space pumps;
11. Footing drains;
12. Individual residential car washing;
13. Flows from riparian habitats and wetlands;
14. Dechlorinated swimming pool discharges;
15. Discharges or flows from emergency fire fighting activities; or
16. Incidental runoff from landscaped areas.
D. Any discharges which the director, the county health department or the regional board determines in writing are necessary for the protection of public health and safety.
E. With written concurrence of the regional board, the city of Petaluma may exempt in writing other nonstormwater discharges which are not a source of pollutants to the city’s MS4.
(Ord. 2546 NCS §2 (part), 2015; Ord. 2209 NCS §1 (part), 2005.)