HomeMy WebLinkAbout2017 Aug 15 - Email from JM O'Reilly Assoc.l
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vonHone, Amy
From: Matthew Farrell <mfarrell�ajmoreillyassoc.com>
Sent: Tuesday,August 15, 2017 12:04 PM
To: vonHone, Amy
Subject: Walker, 7 Circut Road West, Yarmouth, Map 48 Parcel 98
Amy,Good morning ! I have spoke to Paul Martin a couple of times this morning ! They are installing the septic at the
above address. He informed me they installed a different invert on the pump chamber and asked me to calculate the
storage volume above the working level of the pump chamber. Based on a 14" sump (reduced from 20"),42" invert and '
5'diameter chamber the volume per inch is approximately 12.2 Gallons/inch. Using 28 inches from sump to invert
(working level),the storage will be 341 Gallons. I hope this helps. Let me know if you have further questions or need any
other information.Thanks, Matt
Matthew T. Farrell, EIT
Civi) Engineer
J.M. O'Reilly & Associates, Inc. ;
1573 Main Street, 2"d Floor, P.O. Box 1773
Brewster, MA 02631 ;
508-896-6601
508-896-6602 fax ',
http://www.imoreillvassoc.com
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