HomeMy WebLinkAboutInstallation Observation 08.14.25
______________________________________________________________________________________________________________
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
August 14, 2025
Mr. Ted White
Garfield County Public Health
2014 Blake Avenue
Glenwood Springs, CO 81601
RE: Review of OWTS Construction for 338 County Road 238: Sept-8893
Dear Ted:
The purpose of this letter is to confirm that Mountain Cross Engineering, Inc. reviewed the
construction of the OWTS for the residence at 338 County Road 238. The construction of the
OWTS was performed by Mr. Ben Wagenman of Oleo Construction, #970.309.6686.
On Thursday June 5th, 2025 a representative of Mountain Cross Engineering, Inc. reviewed the
profile hole that was excavated and performed a visual analysis of the soils. Neither groundwater
nor bedrock were encountered. Below the top 4” to 6” of topsoil, the soils were consistent for the
8 ft. depth with no defined layers. The soils were identified as Sandy Loam, Soil Type 2A by
CBO, Inc. in their letter dated October 9, 2024 and the soils evaluated by this office were consistent
with those finding. A long-term acceptance rate of 0.5 gallons per day per square foot was
confirmed and the design did not need to be revised.
Figure 1 – Profile Hole Figure 2 – Visual of Soils
Wagenman OWTS
Page 2 of 6
August, 2025
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
On Thursday July 3rd, 2025 and again on Wednesday July 9th, 2025 a representative of Mountain
Cross Engineering, Inc. reviewed the construction of the OWTS. Pictures of the installed
components were taken. The following are pictures from those reviews.
Wagenman OWTS
Page 3 of 6
August, 2025
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
Wagenman OWTS
Page 4 of 6
August, 2025
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
Based on that review and review by representatives of Garfield County EHD, some items had not
yet been completed or needed remedied. Picture verification was requested once finished:
1. The outlets from the distribution box needed to be verified as level after backfill was complete.
2. The vent/inspection caps needed to be completed with vent holes and caps installed.
3. The depth of two rows of chambers exceeded the maximum depth allowed. Evidence that the
finished grade was lowered to achieve the allowable depth was requested.
Below are the pictures that were sent showing that these items had been addressed:
Wagenman OWTS
Page 5 of 6
August, 2025
Mountain Cross Engineering, Inc.
Civil and Environmental Consulting and Design
826 ½ Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
Know what's below.
before you dig.Call
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