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(1) Storage Tanks. All storage tanks proposed to be located in a critical aquifer recharge area must comply with local building code requirements and must conform to the following requirements:

(a) Underground Tanks. All new underground storage facilities proposed for use in the storage of hazardous substances or hazardous wastes shall be designed and constructed so as to:

(i) prevent releases due to corrosion or structural failure for the operational life of the tank;

(ii) be protected against corrosion, constructed of noncorrosive material, steel clad with a noncorrosive material, or designed to include a secondary containment system to prevent the release or threatened release of any stored substances; and

(iii) use material in the construction or lining of the tank that is compatible with the substance to be stored.

(b) Aboveground Tanks. All new aboveground storage facilities proposed for use in the storage of hazardous substances or hazardous wastes shall be designed and constructed so as to:

(i) not allow the release of a hazardous substance to the ground, ground waters, or surface waters;

(ii) have a primary containment area enclosing or underlying the tank or part thereof; and

(iii) have a secondary containment system either built into the tank structure or a dike system built outside the tank for all tanks.

(2) Vehicle Repair and Servicing. Vehicle repair and servicing must be conducted over impermeable pads and within a covered structure capable of withstanding normally expected weather conditions. Chemicals used in the process of vehicle repair and servicing must be stored in a manner that protects them from weather and provides containment should leaks occur.

(3) Spreading or Injection of Reclaimed Water. Water reuse projects for reclaimed water must be in accordance with the adopted water or sewer comprehensive plans that have been approved by the Departments of Ecology and Health.

(a) Surface spreading must meet the ground water recharge criteria given in Chapter 90.46.080 RCW and Chapter 90.46.010(10).

(b) Direct injection must be in accordance with the standards developed by authority of Chapter 90.46.042 RCW.

(4) State and Federal Regulations. The uses listed in Table 16.50.4 below shall be conditioned as necessary to protect critical aquifer recharge areas in accordance with the applicable state and federal regulations.

Table 16.50.4 Statutes, Regulations, and Guidance Pertaining to Ground Water Impacting Activities

Activity

Statute - Regulation – Guidance

Above Ground Storage Tanks

Chapter 173-303-640 WAC

Animal Feedlots

Chapter 173-216 WAC, Chapter 173-220 WAC

Automobile Washers

Chapter 173-216 WAC, Best Management Practices for Vehicle and Equipment Discharges (WDOE WQ-R-95-56)

Below Ground Storage Tanks

Chapter 173-360 WAC

Chemical Treatment Storage and Disposal Facilities

Chapter 173-303-182 WAC

Hazardous Waste Generator (Boat Repair Shops, Biological Research Facility, Dry Cleaners, Furniture Stripping, Motor Vehicle Service Garages, Photographic Processing, Printing and Publishing Shops, etc.)

Chapter 173-303 WAC

Injection Wells

Federal 40 CFR Parts 144 and 146, Chapter 173-218 WAC

Junk Yards and Salvage Yards

Chapter 173-304 WAC, Best Management Practices to Prevent Stormwater Pollution at Vehicles Recycler Facilities (WDOE 94-146)

Oil and Gas Drilling

Chapter 332-12-450 WAC, WAC, Chapter 173-218 WAC

On-Site Sewage Systems (Large Scale)

Chapter 173-240 WAC

On-Site Sewage Systems (< 14,500 gal/day)

Chapter 246-272 WAC, Local Health Ordinances

Pesticide Storage and Use

Chapter 15.54 RCW, Chapter 17.21 RCW

Sawmills

Chapter 173-303 WAC, 173-304 WAC, Best Management Practices to Prevent Stormwater Pollution at Log Yards (WDOE 95-53)

Solid Waste Handling and Recycling Facilities

Chapter 173-304 WAC

Surface Mining

Chapter 332-18-015 WAC

Waste Water Application to Land Surface

Chapter 173-216 WAC, Chapter 173-200 WAC, WDOE Land Application Guidelines, Best Management Practices for Irrigated Agriculture

(Ord. 19-6 §18, 2019; Ord. 03-18 §35, 2003).