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2012_0208 (3)CIIECK ONE: IRRIGATION DOMESTIC FIRELINE A--� BACKFLOW PREVENTION ASSEMBLY TEST AND MAINTENANCE REPORT NAME OF PWS: CITY OF COPPELL PWS I.D. # LOCATION OF SERVICE: o2 O % S The back-flow prevention assembly detailed below has been tested and maintained as required by TNRCC regulations and is certified to be operating within acceptable parameters. Reduced Pressure Principle Double Check Valve Manufacturer WA -7-7-S Model Number 7 % yx 1) CD ✓+ Serial Number / 0 O S7 `/ TYPE OF ASSEMBLY ❑ Pressure Vacuum Breaker ❑ Atmosphere Vacuum Breaker Size Located At L/e, / /Vd Lo r AAr 0-1 D10P The above is certified to be true. / Firm Name o/% /e`s 4- Certified Tester ✓ �`° K ti �..� Firm Address x� ,.✓o c -Vl. 7'n 7& 4Y Cert. Tester No. Q OO13 Date -2- Sr- /a Gauge # 0(.&110-0&9 Date last accuracy tested White - Customer's Copy Yellow - City Copy Pink - Tester's Copy REDUCED PRESSURE PRINCIPLE ASSEMBLY PRESSURE VACUUM BREAKER Double Check Valve Assembly Ist Check 2nd Check: Relief Valve Air Inlet Check Valve Initial Test DC- Closed Closed Tight Opened at Opened at osid JS Ti RP� psid Leaked o oSid oSid Leaked ❑ Did not Open o Leaked o Repairs and Materials Used Test After DC- Closed Closed Tight C3 Opened at Opened at _ nsid Repair Tight E3 oSid oSid RP sid The above is certified to be true. / Firm Name o/% /e`s 4- Certified Tester ✓ �`° K ti �..� Firm Address x� ,.✓o c -Vl. 7'n 7& 4Y Cert. Tester No. Q OO13 Date -2- Sr- /a Gauge # 0(.&110-0&9 Date last accuracy tested White - Customer's Copy Yellow - City Copy Pink - Tester's Copy