HomeMy WebLinkAboutOWTS Memorandum 11.27.2015CIVIL ENGINEERING
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LAND SURVEYING
To: Andy Schwaller, Garfield County Comm. Development Dept.
From: Matthew Langhorst, PE, HCE Inc.
Date: November 27, 2015
Project: Stewart Residence, 13 Silver Spruce Dr., Carbondale CO, 81623.
Subject: OWTS Construction Approval Letter.
The proposed OWTS field design at 13 Silver Spruce Drive outside of Carbondale, CO has been installed
per the approved plans through Garfield County.
The beds were trenched down to the tested soil elevation and installed on an un -compacted level pad of
existing soils with 3' of sand above that existing grade. The chamber rows were installed in the exact
location as designed and at the proper elevation to maintain the proper separation from groundwater per
the soils report.
Trenching and piping were completed correctly. The Pressure distribution valve box piping was attached
to the upper ports on the end caps of the chambers rows and pipes run through the chambers for a dosing
design. The inspection ports were brought to above grade as designed.
The new concrete septic tank meets sizing requirements per design and has an inlet drop and outlet high
head pressure pumps for field dosing per design. The tank lids have been raised to the proper elevation
above grade and backfilling of the trenching and septic tank dig have been completed. Please see
attached photos of the installation..
Please let me know if you have questions pertaining to this acceptance letter submittal.
Thanks,
ae �_.•
Matthew Langhorst, P.E.
High Country Engineering, Inc.
1517 BLAKE AVENUE, SUITE 101
GLENWOOD SPRINGS, CO 81601
970.9455676 • PHONE
970.945-2555 • FAx
wW W.HCENG.COM
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