Willow Park-LR110519 American ti v\AB & INSAF
Rehab & Inspections, INC. �'�
(214) 536 -2915 Q
LOW PRESSURE AIR TEST FOR GRAVITY SANITAR► - 2915
Test Procedures : Each section of sewer shall be tested between successive manholes W
N
DIVISIO
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has been reache , 6At that time the flow
air shall be reduced and the internal air pressure shall be maintained between 3.5 and 4.5 psi g. &9, or at least a c.
minutes to allow the air temperature to come to equilibrium with the temperature of the pipe wal ' 6;tiireit, ■ pipe
shall be constantly monitored by a gauge and hose arrangement separate from the hose used to introduce . it 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 andrel
1
Line Station to Station Size Linear Feet Time ' assed Passes
1 3 +46 -0 +96 8" 251 8:52 es Yes
0 +96 -0 +00 8" 70 8:52 Yes Yes
2 2 +36 -0 +00 8" 230 8:52 Yes Yes
Contractor: JC► \ Date: 5/19/11
Project: illo Park Job#:
Location: I,- .,rUIVI"
f '
Tested By: Os _.. __
Inspector: Larry Davis City Of: Coppell
iii(t. 6 il /0 e 1
t