Water System Design Manual, December 2009

Abbreviations psig Pounds per square inch gauge RCW Revised Code of Washington RED Reduction equivalent dose RO Reverse osmosis RPBA Reduced-pressure backflow assembly RSSCT Rapid small-scale column test SB Standby storage SCA Sanitary control area SCADA Supervisory Control and Data Acquisition SEPA State Environmental Policy Act SOC Synthetic organic chemical SMACNA Sheet Metal and Air Conditioning Contractors National Association SW Surface water SWSMP Small water system management program TDS Total dissolved solids TOC Total organic carbon TP Total water produced and purchased TS Total storage TTHM Total trihalomethane UPC Uniform Plumbing Code USC University of Southern California UV Ultraviolet UVDGM Ultraviolet Disinfection Guidance Manual VOC Volatile organic chemical WAC Washington Administrative Code WHPA Wellhead protection area WISHA Washington Industrial Safety and Health Act WSDM Water System Design Manual WSDOE Washington State Department of Ecology WSDOT Washington State Department of Transportation