Laserfiche WebLink
The Washington State Department of Health (DOH) cross connection regulations require water <br /> purveyors, such as Everett, to maintain safe drinking water by taking precautions to ensure that fire <br /> protection water in both commercial and residential sprinkler systems does not backflow into the public <br /> system. In the past, single check valves were considered as an adequate backFlow device for commercial <br /> properties. However, DOH has determined that double check detector assemblies (DCDA) are the <br /> minimum acceptable backFlow protection device for commercial fire protection systems. Some <br /> coinmercial buildirigs in Everett still have single check-valves installed, whicli now must be upgraded to a <br /> DCDA for commercial fire services when new construction is planned that will affect fire services. This <br /> additional protection is necessary to adhere to DOH regulations and ensure safe drinking water. <br /> Sincerely, <br /> � w`'`.�,��k-�,�� <br /> Tim Markham, WQCO <br /> Cross Connedion Specialist <br /> cc: Permit Services Manager Paul McKee, Assistant Fire M3rshal ]im Venturo, Utilities Records Manager <br /> Verl Sly, Meg Haley <br /> CITY OF EVERETT • 3200 Cedar Street • Everett, WA 98201 • (425) 257-8800 • Fax(425)257-88E.2 <br />