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APRIL 20, 1989 <br />MR. DAVID HEATH <br />GLASS ROCK HOME HEALTH CARE <br />705 INDUSTRIAL PARK DR. <br />MANTICA, CA 95336 <br />RE: TANK SYSTEM TESTING, APRIL 114, 1989 <br />705 INDUSTRIAL PARK DR. <br />MANTICA, CA <br />DEAR MR. HEATH) <br />THE TANK SYSTEM TESTED AT THIS LOCATION IS IDENTIFIED AS <br />FOLLOWS: <br />TANK SYSTEM # 1 - CALIF. REG. #0000004252001 <br />THE CALIFORNIA WATER RESOURCES BOARDS CRITERIA FOR A TIGHT <br />TANK SYSTEM IS A SYSTEM WITH A RATE OF LEAK LESS THAN ± .050 <br />GAL/HR. FOR TANK SYSTEMS 12,000 GALLONS OR LESS. THESE ARE <br />CALCULATED, MATHEMATICAL TOLERANCE ONLY AND ARE NOT MEANT TO <br />INDICATE THE PERMISSION OF ANY LEAK. <br />DURING THE STANDPIPE TEST PROCEDURE THE LIQUID HYDROSTATIC <br />PRESSURE APPLIED TO THE UNDERGROUND TANK SYSTEM IS GENERALLY <br />TWO TO THREE TIMES GREATER THAN NORMAL LIQUID STORAGE <br />PRESSURES. THIS INCREASE IN HYDROSTATIC PRESSURE WILL <br />AMPLIFY THE INDICATED RATE OF LEAK ACCORDINGLY. <br />TANK SYSTEM # 1 SHOWED A RATE OF LEAK OF —.002 GAL./HR. <br />TANK SYSTEM # 1 IS TIGHT. <br />SHOULD YOU HAVE ANY QUESTIONS REGARDING THE RESULTS OF <br />TESTING OR RECOMMENDATIONS PLEASE FEEL FREE TO CONTACT US AT <br />ANY TIME. <br />JUL 271983 <br />RICHARD W. WILLIAMS <br />ENVIRONMENTAL HEALTH <br />PERMIT/SERVICES <br />� <br />R,W■ WILLIAMS, INC• <br />Bakersfield <br />No. Hollywood <br />Tank Testing <br />Fresno <br />Escondido <br />Certified <br />Salinas <br />Riverside <br />Hayward <br />Barstow <br />Box 417841 <br />Eureka <br />Sacramento <br />P.O. <br />Turlock <br />Red Bluff <br />Sacramento, CA 95841-7841 <br />Santa Rosa <br />Santa Maria <br />Phone 1-800-826-2729 <br />APRIL 20, 1989 <br />MR. DAVID HEATH <br />GLASS ROCK HOME HEALTH CARE <br />705 INDUSTRIAL PARK DR. <br />MANTICA, CA 95336 <br />RE: TANK SYSTEM TESTING, APRIL 114, 1989 <br />705 INDUSTRIAL PARK DR. <br />MANTICA, CA <br />DEAR MR. HEATH) <br />THE TANK SYSTEM TESTED AT THIS LOCATION IS IDENTIFIED AS <br />FOLLOWS: <br />TANK SYSTEM # 1 - CALIF. REG. #0000004252001 <br />THE CALIFORNIA WATER RESOURCES BOARDS CRITERIA FOR A TIGHT <br />TANK SYSTEM IS A SYSTEM WITH A RATE OF LEAK LESS THAN ± .050 <br />GAL/HR. FOR TANK SYSTEMS 12,000 GALLONS OR LESS. THESE ARE <br />CALCULATED, MATHEMATICAL TOLERANCE ONLY AND ARE NOT MEANT TO <br />INDICATE THE PERMISSION OF ANY LEAK. <br />DURING THE STANDPIPE TEST PROCEDURE THE LIQUID HYDROSTATIC <br />PRESSURE APPLIED TO THE UNDERGROUND TANK SYSTEM IS GENERALLY <br />TWO TO THREE TIMES GREATER THAN NORMAL LIQUID STORAGE <br />PRESSURES. THIS INCREASE IN HYDROSTATIC PRESSURE WILL <br />AMPLIFY THE INDICATED RATE OF LEAK ACCORDINGLY. <br />TANK SYSTEM # 1 SHOWED A RATE OF LEAK OF —.002 GAL./HR. <br />TANK SYSTEM # 1 IS TIGHT. <br />SHOULD YOU HAVE ANY QUESTIONS REGARDING THE RESULTS OF <br />TESTING OR RECOMMENDATIONS PLEASE FEEL FREE TO CONTACT US AT <br />ANY TIME. <br />JUL 271983 <br />RICHARD W. WILLIAMS <br />ENVIRONMENTAL HEALTH <br />PERMIT/SERVICES <br />