Town Center BP-LR010206 UTILITY& ENVIRONMENTAL SERVICES
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
TEST PROCEDURE:
EACH SECTION OF SEWER SHALL BE TESTED BETWEEN SUCCESSIVE MANHOLES.
AIR SHALL BE INTRODUCED INTO THE PIPELINE UNTIL A 4.0 PSI GAUGE PRESSURE HAS BEEN
REACHED. AT THAT TIME THE FLOW OF ~ 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 USED TO INTRODUCE AIR INTO THE LINE. PRESSURE IN THE PIPE SHALL NOT BE
ALLOWED TO EXCEED 5 PSI.
A~Tt~R THE TEMPERATURE HAS STABILIZED AND NO AIR LEAKS IN THE LINE HAVE BEEN FOUND,
THE AIR PRESSURE SHALL BE USED TO DETERMINE THE 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 TlME LAPSED IS LESS THAN SHOWN IN THE TABLE, THE CONTRACTOR SHALL MAKE
CORRECTIONS TO REDUCE LEAKAGE TO ACCEPTABLE LIMITS.
LINE INFORMATION TEST RESULTS AIR TEST MANDREL
LINE STATION TO STATION PIPE SIZE L.F. TESTED TIME PASSED? PASSED'
Svc line from
Bldg to saddle 4 160 2:05 Y
main
OWNER: TGR Constr.
DATE: 2+6+01
PROJECT: Town Centre Business Park
LOCATION: 265 Parkway E.
TESTED BY: Kevin M¢Swain
OF UTILITY & ENVIRONMENTAL SERVICES INC.
INSPECTORS FULL NAME: Garreth D. Campbell Sr.
CITY OF: Coppcll