Hammond Subdivision- CS150724 American �� ,,�,B J
Rehab & Inspections, INC. II's,�
(214) 536-2915 ``�`' ((`
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LOW PRESSURE Alli TEST FOR GRAVITY SANITARY SEV! 36„2
Test Procedures : Each section of sewer shall be tested between successive manholes. e i'111/ 1 Z
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has been reached. At that time the flow of agc,
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 Size Linear Feet Time Passed Passed
1 4+90-0+00 8” 496 8:52 Yes Yes
Contractor: SMB Date: 7-24-15
Project: Hammond Street Job#:
Location:
Tested By: Luis
Inspector: Marcus Marion City Of: Coppell
American fl ��'
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Rehab & Inspections, INC. 2.'�
(214) 536-2915 (' 214-536-2915 ciw
MANHOLE VACUUM TEST REPORTS'TESTING DIVISION
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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
4+90 10" 60Sec. Yes
0+00 10" 60Sec. Yes
Contractor:: SMB Date: 7-24-15
Project: Hammond Street Job#:
Location:
Tested By: Luis
Inspector: Marcus Marion City Of: Coppell