Chapter 16.50 DISCHARGES INTO FEDERAL WAY WATERS AND STORM DRAINAGE SYSTEMS

Chapter 16.50
DISCHARGES INTO FEDERAL WAY WATERS AND STORM DRAINAGE SYSTEMS

Sections:

16.50.010 Illicit connections.

No person may connect a conveyance system which was not constructed or intended to convey precipitation runoff, or which has been converted from such usage to another use, to a storm drainage system or groundwater infiltration system. The construction, use, maintenance, or continued existence of illicit connections to surface water, stormwater, groundwater or the Puget Sound is prohibited. This prohibition expressly includes, without limitation, illicit connections made in the past, regardless of whether the connection was permissible under the law or practices applicable or prevailing at the time of construction. The following connections or discharges may be made:

(1) Allowable discharges as defined below;

(2) Discharges authorized by a NPDES or state waste discharge permit;

(3) Connections conveying effluent from an approved on-site sewage disposal system to its drainfield.

(Ord. No. 09-630, § 25, 10-20-09; Ord. No. 09-619, § 9, 7-21-09; Ord. No. 99-352, § 3, 11-16-99. Code 2001 § 21-36.)

16.50.020 Prohibited discharges.

It is unlawful for any person to discharge contaminants into surface water, stormwater, groundwater, or the Puget Sound. Contaminants include, but are not limited to, the following:

(1) Trash or debris;

(2) Construction materials;

(3) Petroleum products including but not limited to oil, gasoline, grease, fuel oil, heating oil;

(4) Antifreeze and other automotive products;

(5) Metals in either particulate or dissolved form;

(6) Flammable or explosive materials;

(7) Radioactive material;

(8) Batteries;

(9) Acids, alkalis, or bases;

(10) Paints, stains, resins, lacquers, or varnishes;

(11) Degreasers and/or solvents;

(12) Drain cleaners;

(13) Pesticides, herbicides, or fertilizers;

(14) Steam cleaning wastes;

(15) Soaps, detergents, or ammonia;

(16) Swimming pool or spa filter backwash;

(17) Chlorine, bromine, or other disinfectants;

(18) Heated water;

(19) Domestic animal wastes;

(20) Sewage;

(21) Recreational vehicle waste;

(22) Animal carcasses;

(23) Food wastes;

(24) Bark and other fibrous materials;

(25) Collected lawn clippings, leaves, or branches;

(26) Concrete and concrete byproducts including wastewater from concrete saw cutting;

(27) Silt, sediment, or gravel;

(28) Dyes (except as described in FWRC 16.50.030, Allowable discharges);

(29) Chemicals not normally found in uncontaminated water;

(30) Any other process associated discharge except as otherwise allowed in this section;

(31) Any hazardous material or waste not listed above.

(Ord. No. 09-630, § 26, 10-20-09; Ord. No. 09-619, § 10, 7-21-09; Ord. No. 99-352, § 3, 11-16-99. Code 2001 § 21-37.)

16.50.030 Allowable discharges.

Subject to provisions of the BMP manual, the following types of discharges shall not be considered prohibited discharges for the purpose of this title unless the director or his/her designee determines that the type of discharge, whether singly or in combination with others, is causing pollution of surface water, stormwater or groundwater:

(1) Natural uncontaminated surface water;

(2) Diverted stream flows;

(3) Spring water;

(4) Uncontaminated water from crawl space pumps or footing drains;

(5) Uncontaminated pumped groundwater;

(6) Uncontaminated groundwater infiltration defined in 40 CFR 35.2005(20);

(7) Flows from riparian habitats and wetlands;

(8) Collected rainwater that is uncontaminated;

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

(10) Materials placed as part of an approved habitat restoration or bank stabilization project;

(11) Discharges resulting from diffuse or ubiquitous sources such as atmospheric deposition;

(12) Discharges resulting from dye testing authorized by the director;

(13) Air conditioning condensation;

(14) Discharges which result from emergency response activities or other actions that must be undertaken immediately or within a time too short to allow full compliance with this title so as to avoid an imminent threat to public health or safety. The director may further define qualifying activities in administrative guidance. The person responsible for said emergency response activities shall take all necessary steps to ensure that the discharges resulting from such activities are minimized and ensure that future incidents are prevented to the greatest extent possible. In addition, this person shall evaluate BMPs and the site plan, where applicable, to restrict recurrence;

(15) Other types of discharges as determined by the director.

(Ord. No. 09-630, § 27, 10-20-09; Ord. No. 09-619, § 11, 7-21-09; Ord. No. 99-352, § 3, 11-16-99. Code 2001 § 21-38.)

16.50.040 Conditional discharges.

The following types of discharges shall not be considered prohibited discharges for the purposes of this chapter if they meet the stated conditions, or unless the director or his/her designee determines that the type of discharge, whether singly or in combination with others, is causing or is likely to cause significant contamination of surface water, stormwater or groundwater:

(1) Discharges from potable water sources, including water line flushing, hyperchlorinated water line flushing, fire hydrant system flushing, and pipeline hydrostatic test water that have been dechlorinated to a concentration of 0.1 ppm or less, pH-adjusted, if necessary, and volumetrically and velocity controlled to prevent resuspension of sediments to surface water, stormwater, groundwater, or the Puget Sound;

(2) Lawn watering and other irrigation runoff. These discharges shall be minimized through, at a minimum, public education activities and/or water conservation efforts;

(3) Discharges from swimming pools that have been dechlorinated to a concentration of 0.1 ppm or less, pH-adjusted and reoxygenized if necessary, and volumetrically and velocity controlled to prevent resuspension of sediments to surface water, stormwater, groundwater, or the Puget Sound;

(4) Street and sidewalk wash water, water used to control dust, and routine external wash down that does not use detergents (these discharges shall be minimized through, at a minimum, public education activities and/or water conservation efforts);

(5) Nonstormwater discharges covered by a separate National Pollutant Discharge Elimination System (NPDES) or state waste discharge permit; provided, that 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 for any discharge to the storm drain system;

(6) Other stormwater discharges. The discharges shall be in compliance with the requirements of a stormwater pollution prevention plan (SWPPP) reviewed and approved by surface water management, which addresses control of such discharges by applying AKART to prevent contaminants from entering surface water, stormwater, groundwater, or the Puget Sound.

(Ord. No. 09-630, § 28, 10-20-09; Ord. No. 09-619, § 12, 7-21-09.)