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Professional Training Association is a non-profit organization that was created to support rural development and communities. Our focus is on supporting small to mid-sized utilities. We specialize in career building training for professionals by professionals.

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Washington Administrative Code (WAC)

Washington Administrative Code (WAC)

 

Department of Ecology, Title 173 WAC

 

Accreditation of Environmental Laboratories, 173-50 WAC

 

NPDES, 173-220 WAC

 

State waste discharge permit program, 173-216 WAC

 

Reclaimed Water, 173-219 WAC

 

Wastewater discharge standards and effluent limitations, 173-221A WAC

 

Certification of operators of wastewater treatment plants, 173-230 WAC

 

Biosolids Management, 173-308 WAC

 

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