Gunner Sub-CS 980429April29,1998
Mr. Michael A. Martin P.E.
Assistant City Engineer
City of Coppell Engineering Department
P.O. Box 478
Coppell, TX 75202
Carson-Salcedo-McWilliams, inc.
CONSULTING CIVIL EN~IINEERS - LAND SURVEYORS
DALLAS FORT WORTH
Luis M. Slk:eclo, P.E.
Rieltaed Camon, Jr. P.F-
Mac McWililams, P.E.
Ming-Yao (Philip) Fao, P.F_
Thomas V. Bm'one. P.E.
Syh~l C&m&rfllO
Re: 971146 Gunner Subdivision
Tract I - 20.965 Acres
VARIANCE REQUEST FOR STORM SEWER PIPE MATERIAL
Dear Mr. Martin:
We request a variance for the storm sewer pipe material used within the private property
of this project. We request permission to use ADS N-12 High Density Polyethylene
drainage pipe, manufactured by Advanced Drainage Systems (ADS), in place of reinforced
concrete pipe.
Sincerely.
Michael A. Gonzales.
Carson-Salcedo,.McWilliams, I.c
1201 MAIN STREET, SUITE IS30 DALLAS. TEXAS 7S202 (214) 741-4640 FAX (214) 741-4610
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