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2013_0506CHECK ONE: IRRIGATION DOMESTIC FIRELINE_ZVL 4j BACKFLOW PREVENTION ASSEMBLY TEST AND MAINTENANCE REPORT NAME OF PWS: CITY OF COPPELL PWS I.D. # LOCATION OF SERVICE: `l0C) INi V; c r K d The back-flow prevention assembly detailed below has been tasted and maintained as required by TNRCC regulations and is certified to be operating within acceptable parameters. TYPE OF ASSEMBLY C Reduced Pressure Principle C Pressure Vacuum Breaker Z; Double Check Valve C Atmosphere Vacuum Breaker Manufacturer Wy '-1 � Size 3f`/ Model Number 0C %7 'noo Located At ., 'r t 7-v,, (,7C o Serial Number 1 > 96 The above is certified to be true. Firm Name 4(, -r e ►,V C^ z C Firm Address 6 ) fxj x `7 Ci 7 i cya hc.c Gauge # iC) & Date last accuracy tested _31,13 Certified Testa NtJ,2--iv-C. lul,e ti vt e e Cat. Testa No. WO ri,!) 7" Date 5J61/3 White - Customer's Copy Yellow - City Copy Pink - Tester's Copy REDUCED PRESSURE PRINCIPLE ASSEMBLY PRESSURE VACUUM BREAKER Double Check Valve Assembly 1st Check 2nd Check Relief Valve Air Inlet Check Valve Initial Test DC- Closed Closed Tight Opened at Opened at flsid Tight 4.,,- C RP -_psid Leaked ❑ Dsid osid leaked V 1 Did not Open ❑ Leaked ❑ Repairs e. r and Materials �' e l- Used Test After Repair DC- Closed Tight 0. -11 W?. Closed Tight d Opened at nsid Opened at osid _nsid RP sid The above is certified to be true. Firm Name 4(, -r e ►,V C^ z C Firm Address 6 ) fxj x `7 Ci 7 i cya hc.c Gauge # iC) & Date last accuracy tested _31,13 Certified Testa NtJ,2--iv-C. lul,e ti vt e e Cat. Testa No. WO ri,!) 7" Date 5J61/3 White - Customer's Copy Yellow - City Copy Pink - Tester's Copy