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r - 0 <br /> 7AT <br /> TAIT&ASSOCIATES,INC. <br /> CONSULTING ENGINEERS Civil Planning • Surveying • Environmental <br /> January 28, 1999 <br /> Via: Fax <br /> Letitia Briggs <br /> Senior Registered Environmental Health Specialist <br /> Public Health Services <br /> 304 East Weber, Third Floor <br /> Stockton, CA 95202 <br /> Phone (209) 468-3468 <br /> RE: System Pressure Testing <br /> San Joaquin County Corporation Yard <br /> 1810 East Hazelton, Stockton, CA <br /> TAIT Job No. SP3952 <br /> Dear Letitia: <br /> The primary piping has been installed at the above referenced yard and was initially inspected <br /> by your office on 1/19/99. At that time, the 1-hour air pressure test on the primary piping per <br /> the specifications in the project-approved plans was witnessed by your office. A soap test of <br /> the joints was performed and no leaks were detected. Although the contractor performed the <br /> test per the project-approved plans, the County Health Department has not issued its approval <br /> of the test and allowed the contractor to continue the installation of the secondary containment <br /> Piping <br /> On 1/22/99, I visited the site at the request of Earl Gilford to view the primary piping <br /> installation. At that time, the air pressure was increased in the individual piping systems to at <br /> least 75 psi and a soap test of all joints and fittings was performed and witnessed by myself. <br /> The air pressure was left on the system over the weekend and on the morning of 1/25/99 I <br /> again viewed the pressure gauges, and all pipe systems passed the test per the approved plans. <br /> After discussions with the Motor Pool Division that morning, you stated that the contractor <br /> needed to perform the cyclic pressure test per A.O. Smith's installation recommendations to <br /> obtain County Health approval. As this is not what was required at time of plan approval, and <br /> is not the normal test procedure for this type of installation, the Public Works Department feels <br /> this is extraordinary and unnecessary. As the piping system has passed the industry standard <br /> test, the Department accepts the test results and requests your approval to continue the project <br /> without performance of the cyclic pressure test. <br /> 2880 Sunrise Boulevard. - Suite 206 - Rancho Cordova,CA 95742 • (916)635-2444 • (916)635-2606 FAX <br /> Olher Locations. Orange.CA - San Diego,CA . Concord,CA • Phoenix,AY • Tucson,AZ <br /> EstablFshed 1954 <br />