Dynasty Cleaners-CS030611Jun 11 03 10:39a
J .P. B ROT H 15 RS INC.
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Jun 11 03 lO:~Oa
MA International
Consulting/Engineering/Planning
506 Melrose Erive Richardson, Texas 75080
Tel: 972) 644-2439 Fax: 972) 644-2414 E-Mail: ma2@maiLcom
June 4, 2003
Mr. Ym g Soo Klm, President
J.P. Brothers, loc.
10203 (!orkwood Pl. Suit 110
Dallas, Texas 75238
RE: St)tm Drain Revision and Cal~ ulations
Dynasty Plaza - Denton Tap & 121 Coppell, Texas
Mr. Kim:
At your request, MA International has revised the private storm drain line due to field
changes and conflicts. We recalculated for a 12" pipe and determined the ttgl matches
the top ~f curb elevation and there for ,viii handle the entire run off(Q100=7.64 CFS)
under p~ essure Plow. In addition we recommend that you usc ABS pipe instead of the
RCP pit e since this is a private storm drain system in a private easement between the
adjacen~ property owners and will be easier to install around the existing water and gas
lines. 'I he calculations are attached to this letter.
If you hive any questions, please call me.
Thank ~ au fbr allowing us to ihrthcr a:;sists you on this project.
Sincerely,
MA intemational, Inc.
John Mi, P.E.
Presider t
Cc:
I Jarreth Campbell - Construction Inspector
( :ity of Coppell
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