17.20.080 Certain discharges into the storm drain system exempted.
Notwithstanding any provisions to the contrary, the following types of discharges into the storm drain system are exempt from the prohibition set forth above:
A. Discharges from the following activities when the discharger conducts the activity such that the least amount of non-stormwater as practicable enters the storm drain system:
1. Watering of lawns, landscaping, and gardens;
2. Washing of personal motor vehicles by residents;
3. Draining of water from swimming pools or spas, five days after the chlorine content of such water according to a test kit approved by the state department of health shows a reading of zero chlorine content.
4. Flushing of water lines or other discharges from potable water sources;
5. Flows from firefighting.
B. Discharges from the following sources when the discharger manages the source such that the least amount of non-stormwater as practicable enters the storm drain system:
1. Crawl space and basement sump pumps;
2. Air conditioning condensation;
3. Groundwater drainage piping systems, including foundation drains, footing drains and pumps;
4. Uncontaminated pumped groundwater.
C. Discharges from rising groundwaters, springs, and flows from riparian habitats and wetlands. (Ord. 6216-NS § 8, 1993)