Information
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Audit Title
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Client / Site
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Conducted on
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Prepared by
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Location
Project Information:
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Project Name:
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Location:
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Job #:
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Date and Time of Test:
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Contractor:
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Utility Subcontractor:
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Field Representative:
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City / County:
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Representative:
Data Summary:
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Time at Start of Test:
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Pressure at Start of Test (psi):
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Time at End of Test:
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Pressure at End of Test (psi):
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Test Duration (hours):
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Loss of Pressure (psi):
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Amount of water required to return to original pressure (L) (gal):
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Allowable Leakage (gal):
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Test Results:
Allowable Leakage Computation:
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1. AWWA C-600 Ductile Iron Mains L = SD(P)^.5/133,200
2. AWWA Manual No. M-23 - PVC Main L = ND(P)^.5/7,400
3. L = { [ (D1 x S1) + (D2 + S2) + (D3 + S3) + (D4 + S4) ] x P x H } / 133,200
L = Allowable Leakage (in gallons / hour)
S = Length of line tested (in feet)
D = Internal Diameter (in inches) of the pipe tested
P = Square root of the average test pressure (psi)
N = Number of joints along pipe being tested
H = Duration of test (hours) -
S1 (length in feet)
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S2 (length in feet)
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S3 (length in feet)
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S4 (length in feet)
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D1 (diameter in inches)
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D2 (diameter in inches)
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D3 (diameter in inches)
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D4 (diameter in inches)
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N (20' joints)
Minimum Standards:
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A) All water mains shall be tested at 150% of the average working pressure. The minimum pressure test is set to 150 psi.
B) All forced mains shall be tested at 100% of the average working pressure. The minimum pressure test is set to 100 psi.
C) A minimum test time has been set at 2 hours.
D) The maximum pressure variation shall be 5 psi.
E) All services shall be visually examined during the test.
F) All visible leaks shall be repaired regardless of the outcome of the test.
Engineer / Inspector Comments:
Witnesses:
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City / County:
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Phone:
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Contractor:
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Phone:
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Utility Subcontractor:
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Phone:
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Civil Engineer:
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Phone:
