13.26A.040 Maintenance of stormwater facilities.

A.    Maintenance and Inspection Required. All public and private drainage facilities shall be inspected and maintained by the owner in accordance with the Clark County Stormwater Manual. The intent is to ensure proper maintenance of pollution control and quantity control facilities to protect surface water and groundwater. The responsible official may require the owner to conduct more frequent inspection and/or maintenance when necessary to assure that facilities function as designed for pollutant control and quantity control. The Clark County Stormwater Manual shall be filed with and available at the county.

B.    Alternative Maintenance Practices. The responsible official shall approve a maintenance practice for a stormwater facility not included in the Clark County Stormwater Manual if the proponent demonstrates that the proposed maintenance practice provides pollutant controls equivalent to maintenance standards of the Stormwater Management Manual for Western Washington 2012. The responsible official shall update the Clark County Stormwater Manual to include alternative maintenance practices or maintenance practices for facilities not included in the manual before such practices are allowed for general use.

C.    Disposal of Waste from Maintenance Activities. Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations, including the Minimum Functional Standards for Solid Waste Handling, Chapter 173-304 WAC; guidelines for disposal of waste materials; and, where appropriate, Dangerous Waste Regulations, Chapter 173-303 WAC.

D.    Exceptions. The responsible official may grant an exception for maintenance requirements that conflict with federal, state, or local environmental regulations such as a Washington Department of Fish and Wildlife Hydrologic Project Approval, a wetland permit, geologically hazardous area requirements, or habitat conservation requirements.

E.    County Maintenance Projects. The responsible official shall prepare a list of stormwater facilities for major maintenance or repair. The list will be updated annually and prioritize projects based on the needs to protect water bodies, protect public safety, prevent catastrophic infrastructure failure, prevent flooding, and protect infrastructure.

F.    Private Maintenance Projects. The responsible official may require that the operator of a privately operated and maintained facility with deferred maintenance complete construction projects to bring the facility into compliance with maintenance standards. The responsible official may approve a work schedule to bring these facilities into compliance with the Clark County Stormwater Manual. This does not relieve the operator from performing routine maintenance and enforcement under provisions of this chapter. (Sec. 3 (Exh. B) of Ord. 2000-07-34; amended by Sec. 3 (Exh. 2) of Ord. 2009-01-01; amended by Sec. 1 (Att. A § 2) of Ord. 2011-08-08; amended by Sec. 8 of Ord. 2015-11-24)