HomeMy WebLinkAboutOWTS Construction Approval Letter 09.28.17CIVIL ENGINEERING LAND SURVEYING
To:
From:
Date:
Project:
Structure:
Subject:
MEMORANDUM
Garfield County Building Division of the Community Development Department
Andy Schwaller, Chief Building Official
Matt Provost, Inspector
Tom Scott, P.E.
September 28, 2017
2161022.00 -Lot 5, Roaring Fork Preserve -06 Silver Spruce Drive, Carbondale
Barn I Auxiliary Building
Onsite Wastewater Treatment System (OWTS) Construction Approval Letter
The proposed OWTS field design for Barn I Auxiliary Building at Lot 5, Roaring Fork Preserve in Garfield
County, Colorado has been installed. The General contractor was Clear Water Construction Management
Inc . P.O. Box 6236 Snowmass Village, CO 81615.
The chambers were installed on native soil, four feet above ground water level, as designed. The soils were
consistent through the chamber trenches as per what was described within the geotechnical report prepared
by HP Geotech, Inc. Job No. 100627, dated 1 J-30-2000. The chambers are situated such that the required
setback distances form adjacent irrigation ditches have been achieved. The absorption area of the chambers
is equal to the required area shown on the approved plans. The 2" diameter distribution pipes were run
through the upper ports on the end caps and chambers, as designed. Inspection ports were installed at the
ends of the chamber runs, as designed.
The septic tank meets sizing requirements and pump requirements per the design and has an inlet drop per
design. Installation of the internal dosing pump, floats, controls and alarms were overseen by was Clear
Water Construction Management Inc. The tank lids have been raised to the proper elevation above grade and
backfilling of the trench and septic tank dig have been completed.
Attached are photos of the installation.
Please let me know if you have questions pertaining to this acceptance letter submittal.
Thank you,
High Country Engineering, Inc.
1517 Blake Avenue, Suite 101
Glenwood Springs, CO 81601
970-945-8676 • phone
970-945-2555 • fax
www.hceng.com
Manifold, Dosing Pipes and Chambers, June 6, 1017
Manifold and Dosing Pipes, June 6, 1017
1517 Blake Avenue, Suite IOI
Glenwood Springs, CO 81601
970-945-8676 • phone
970-945-2555 • fax
www.hceng.com
Tank access riser, Manifold, Dosing Pipes Chambers June 6, I 017
Tank and Anti-buoyancy anchors, June 2, 2017
1517 Blake Avenue, Suite IO I
Glenwood Springs, CO 81601
970-945-8676 • phone
970-945-2555 • fax
www.hceng.com
Tank access riser, and Dosing Pump, June 6, 1017
Backfilled Absorption Field, September 28, 2017
1517BlakeAvenue, Suite IOI
Glenwood Springs, CO 81601
970-945-8676 • phone
970-945-2555 • fax
www.hceng.com
Control Box inside Barn I Auxiliary Building, September 28, 2017
1517 Blake Avenue, Suite IO 1
Glenwood Springs, CO 8160 l
970-945-8676 • phone
970-945-2555 • fax
www.hceng.com