Arbor Manors-CS091006 (4)
Michelle Matunas
From:Casey Ross <cross@daa-civil.com>
Sent:Tuesday, October 06, 2009 5:13 PM
To:Keith Marvin
Cc:Michael Garza; Matt Alexander
Subject:Arbor Manors Sanitary Sewer
Attachments:Arbor Manors San Sewer.pdf
Keith,
I have attached an exhibit to show all of the existing flow line elevations of the sanitary sewer lines in Sandy Lake Road
as well as the sanitary sewer line just to the west of our property. The flow line where Line “J” connects to the existing
line is 476.29. The elevation out of the manhole downstream is 477.00. This will result in 0.71’ of standing water in the
manhole at the downstream end of Line “J”. The lowest finish pad on the job is at an elevation of 491.1. This is well
above the 477.00. The rim elevation of the manhole at the downstream end of Line “J” is 484.00. There should not be
any sewage coming out of the manhole. The flow line out of the manhole downstream and to the west of the 477.00
manhole is 476.11 (not pictured on the exhibit) which shows positive drainage between the two. Please review and let
me know if you have any questions or need any additional information.
Thanks,
Casey Ross, P.E.
Dowdey, Anderson & Assoc.
5225 Village Creek Drive, Suite 200
Plano, TX 75093
972-931-0694 (O)
469-576-1039 (C)
972-931-9538 (F)
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