(1) Naturally occurring surface water and groundwater;

(2) Diverted stream flows;

(3) Uncontaminated groundwater entering drainage facilities via pipe joints, pipe connections, manholes, defective pipes, or via seepage from the earth into open drainage structures such as ditches or ponds;

(4) Pumped groundwater;

(5) Uncontaminated water discharged from foundation drains, footing drains, and crawl space pumps;

(6) Air conditioning condensation;

(7) Irrigation water from agricultural sources that is commingled with stormwater;

(8) Runoff from lawn watering and landscape irrigation;

(9) Materials used or structures installed as part of capital construction projects, habitat restoration projects, bank stabilization projects, scientific research, or similar projects, as approved by the county, the state of Washington, or the federal government;

(10) Marine engine exhaust and cooling water;

(11) Nontoxic dye used for identifying and testing sewer connections when used in compliance with SCC 7.53.100; and

(12) Nonstormwater discharges covered by an NPDES or State Waste Discharge Permit issued by Ecology or EPA. (Added by Ord. 01-035, May 23, 2001, Eff date June 2, 2001; Amended by Amended Ord. 07-030, May 2, 2007, Eff date May 17, 2007; Amended by Ord. 08-091, July 30, 2008, Eff date Aug. 21, 2008; Amended by Amended Ord. 13-023, Apr. 17, 2013, Eff date Apr. 28, 2013).