Magnolia Park-LR 980813 UTILITY & ENVIRONMENTAl., SERVICES, INC.
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
Test Procedure:
Each section of sewer shall be tested between sucessive 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 maintaine~l
between 3.5 and 4.5 psi gauge for at least two(2) minutes to allow the air temperature to co ~ne
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 ilnto
the line. Pressure in the pipe shall not be allowed to exceed 5 psi. /
A~ter the temperature has stabilized and no air leaks at the plugs have been found, the air I~ressure
shall be used to determine the time lapse required for the air pressure to drop to 2.5 psi gaqge.
If the time lapse required for the air pressure to decrease from 3.5 to 2.5 psi exceeds that si
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
reduce the leakage to acceptable limits.
~own in
LO
Line Information I I I JTest Results JAir TestI IMandrel
Line Station to Station Pipe Size L.F.TeSted Time paSsed.~ Passed?
A 12 + 80 15 + 91 12" 311 51 Xt / X
G 0 + 00 1 + 96 10" 196 5 X
G 1 + 96 5 + 87 10" 391 5 X
C~ 5 + 87 9 + 00 10" 313 5 X
G 9 + 00 11 + 96 10" 296 5 X
G 11 + 96 1 5 + 97 1 0" 391 5 x X
~ n + nn 4 + 52 B" 452
D 0 + 00 5 + 38 8" 538 K X X
D 5 + 38 9 + 96 8" 458 5 ~ [ X
E 0 + 00 4 + 27 8" 427 5 XI X
E 4 + 27 { + 1{ 8" 189 5 X
Owner J. F. Clack
Project Ma_cmolia Park
Location 553 · l~nt-nn T~n
Tested By Martin Calvillo
Inspectors Full Name Ga.rr~t,..h
City of Coppell
Date 8-13-98
Job#
of Utility & Environmental Serv ces,lnc.
UTILITY & I~NVIRONMI~NTAL SERVICES, INC.
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
Test Procedure:
Each section of sewer shall be tested between sucessive 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 maintaine(
between 3.5 and 4.5 psi gauge for at least two(2) minutes to allow the air temperature to co ne
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 ipto
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 I~ressure
shall be used to determine the time lapse required for the air pressure to drop to 2.5 psi gaqge.
If the time lapse required for the air pressure to decrease from $.5 to 2.,5 psi exceeds that s own 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
reduce the leakage to acceptable limits.
Line Information I I I ITest Results IpA' IMandrel
Line Station to Station Pipe Size L,F.Tested Time Passed?
A 12 + 80 15 + 91 12" 311 5 X
G 0 + 00 1 + 96 10" 196 5 X
G :1 + 96 5 + 87 10" 391 5 X
C~ 5 + 87 9 + 00 10" 313 5 X
G 9 + 00 11 + 96 10" 296 5 X I X
G 11 + 96 15 + 87 10" 391 5 X I X
H ~ . nn 4 + 52. R" 452, 5 × X
D 0 + 00 5 + ~B 8,'
D 5 + 38 9 + 96 ~" 458 5 X I X
E 0 + 00 4 + 27 B" 427 5 X x
E 4 + 27 6 + 16 8" 1~ ~ X I X
Owner J. F. Clack
Project Mag'r~l'[a Park
Location 555 & ]'~rrl-c)n 'T'R?
Tested By Hartin Ca'lv-illo
Inspectors Full Name Garreth
City of Coppell
Date 8-13-98
Job#
of Utility & Environmental Ser,,ices,lnc.