14.27.020 Applicability/regulated activities.
A. This chapter applies to all applications submitted:
1. On or after July 1, 2022.
2. Prior to January 1, 2017, that have not started construction by January 1, 2022.
3. Prior to July 1, 2022, that have not started construction by July 1, 2027.
B. Existing Regional or Shared Stormwater Facilities--Commercial.
1. Development projects proposed in areas that were previously designed to convey on-site stormwater runoff to regional or shared facilities shall be permitted to do so provided the existing facility is functioning per the approved design and has remaining capacity.
2. New development projects shall meet water quality standards identified in the current Stormwater Design Manual. If a development project proposes to convey stormwater runoff to a regional or shared facility that does not meet current water quality standards then on-site stormwater treatment shall be required prior to conveyance to the regional or shared facility.
C. Subdivision--Residential. Individual lots shall manage on-site stormwater runoff in accordance to the current Stormwater Design Manual in effect at the time of complete building permit application, unless the subdivision’s stormwater management system was designed to accommodate runoff from individual lots.
D. This chapter applies to the following actions on sites that discharge to the city’s MS4 or discharges to waters of the state whether or not a city-issued permit is required:
1. Land-disturbing activity; or
2. Creation of new hard surfaces; or
3. Replacement of existing hard surfaces; or
4. Conversion of pervious surfaces; or
5. New connections to the city’s MS4; or
6. Any other actions that can increase the volume or rate of stormwater runoff, or cause the generation of pollutants, from the site. (Ord. 1620 §2, 2022; Ord. 1525 §1 (part), 2017).