Lost Creek TH-CS071113
~ AMERICAN
REHAB & INSPECTIONS, INC.
(214) 536-2915
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
Test Procedures
Each section of sewer shall be tested between successive manholes.
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has been reached. At that time the
flow of air shall be reduced and the internal air pressure shall be maintained between 3.5 and 4.5 psi
gauge for at least two (2) minutes to allow the air temperature to come to equilibrium with the
temperature of the pipe walls. Pressure in the pipe shall be constantly monitored by a gauge and hose
arrangement separate from the hose used to introduce air into the line. Pressure in the pipe shall not be
allowed to exceed 5 psi.
After the temperature has stabilized and no air leaks at the plugs have been found, the air pressure shall
be used to determine that time lapse required for the air pressure to drop to 2.5 psi gauge.
If the time lapse required for the air pressure to decrease from 3.5 to 2.5 psi exceeds that shown in the
following table, the pipe shall be presumed to be within acceptable limits for leakage.
If the time lapsed is less than that shown in the table, the contractor shall make corrections to reduce the
leakage to acceptable limits.
Line Information Test Results Air Test Mandrel
Line Station to Station Pipe Size L.F. Tested Time Passed (?) Passed (?)
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Contractor: 'em 6-c.l77/~,l/f!77~1
Project:~s T t!/2eel'I()-eVN/~
LOCatiOn:~~,€b .
Tested by: 7
Inspector: }/C.I< t)~e.(,L
Date:
11;j3~7
Job#
City Of~'" <-.'-
American
Rehab & Inspections, INC.
(214) 536-2915
MANHOLE VACUUM TEST REPORTS
Test Procedures
Plug all manhole entrances and exits other than the manhole top access using suitably sized pneumatic or
mechanical pipeline plugs. Install the vacuum tester head assembly at the top access of manhole. Attach
vacuum pump to test head and start pump. Open Inlet/outlet ball valve and evacuate the manhole to 10" Hg. (
approximately negative 5 PSIG, 0.3 bar) Close vacuum inlet/outlet ball valve and monitor vacuum for specified
test period.
MANHOLE NUMBER HG.PSIG TIME PASSED
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Location:
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Inspector:
Date: ///;:110 7
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Job#:
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