Stonemeade-LR 940201UTILITY AND ENVIRONMENTAL SERVICES, INC.
P. O. Box 542015 • 1965 California Crossing
Dallas, Texas 75354
(214) 556 -2913
MEMO
TO Garth Campbell
Engineering Department
FROM Utility & Environmentai Service, Inc.
Pipeline services department
SUBJ Sinacola and Sons, Inc.
Cottonwood Creek Phase # 1
DATE February 1, 1994
Enclosed are the test results of the TV inspection, air test and mandrel Utility &
Environmental Services, Inc.
An additional copy of the test results and a copy of the video tape was sent to Jeff
Hawkins at Sinacola and Sons, Inc. request.
Please call 214 -556 -2913 if you have any questions. Thank you.
cc : Jeff Hawkins
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
Emb section Of sawes shall be tested between successive manholes.
Air shall be Wroducad into the pipdne us" 4.0 psi gauge ;pressure has been reached. At that time the flow of air shall be
redttad and qte internal air prawc
shall be maintained b�.ween 3S and 4.5 psi gauge for at least two (2) minutes to allow
the & temparame to come to oquiitbcium with the temperature of the pipe walls. Pressure in the pipe shall be constantly
asookanr by a P"p and b tmngment separate from the hose used to introduce air into the hoe. PM6sure le tho
pipe shall not be allowed to ezCMd 5 Psi-
Aiter
and no air leaks at the plugs have been found, the air pressure shall be used to
�° � stabilized pressure to drop to 2S psi gauge.
detetsaiae the time lapse required for the air p P P
If the time lapse requited for the air pressure to decease form 3S to 2S psi exceeds that shown in the following table. the
pipe shall be presumed to be within acceptable limits for leakage.
U the tisM lapWA is less than that shown in the table, the contractor shall make corrections to reduce the leakage to
&emu&" limis&
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