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Geotechnical and Materials Engineers 5020 County Road 154
and Environmental Scientists Glenwood Springs, CO 81601
phone: (970) 945-7988
fax: (970) 945-8454
email: kaglenwood@kumarusa.com
An oy" 0WrWd comWny www.kumarusa.com
Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado
August 25, 2023
Glynna Baker
P.O. Box 5748
Frisco, Colorado 80443-5748
glynnanglynnabaker.com Project No. 21-7-249.01
Subject: Observation of Completed Excavation, Proposed Residence, 360 Cerise Ranch
Road, Lot 52, Cerise Ranch, Garfield County, Colorado
Dear Ms. Baker:
As requested by Scott DeWind, a representative of Kumar & Associates, Inc. observed the
completed excavation at the subject site on August 25, 2023 to evaluate the soils exposed for
foundation support. The findings of our observations and recommendations for the foundation
design are presented in this report. We previously observed the partial building excavation and
presented our findings in a report dated August 21, 2023, Project No. 21-7-249.
At the time of our visit to the site, the foundation excavation was complete and had been cut in
multiple levels from 3 to 14 feet below the surrounding ground surface. The soils exposed in the
bottom of the completed excavation consisted of medium dense, slightly silty gravelly sand to
sandy gravel. No free water was encountered in the excavation and the soils were slightly moist.
All of the excavation footing levels were dug down through the upper clay soils.
The granular soils exposed in the excavation are consistent with those previously encountered
on the site and suitable for support of spread footings designed for the recommended allowable
bearing pressure of 2,000 psf. Loose and disturbed soils should be removed in the footing areas
to expose the undisturbed natural gravelly sand soils. Other recommendations presented in our
previous report which are applicable should also be observed.
The recommendations submitted in this letter are based on our observation of the soils exposed
within the foundation excavation and the previous limited subsurface exploration at the site.
Variations in the subsurface conditions below the excavation could increase the risk of
foundation movement. We should be advised of any variations encountered in the excavation
conditions for possible changes to recommendations contained in this letter. Our services do not
include determining the presence, prevention or possibility of mold or other biological
contaminants (MOBC) developing in the future. If the client is concerned about MOBC, then a
professional in this special field of practice should be consulted.
If you have any questions or need further assistance, please call our office.
Sincerely,
Kumar & A;
Steven L. F
Rev. by: D:
DEH/kac
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Scott DeWind (scott�sscm.co)
SK Peightal Engineers — Steve Peightal (skpe.structural(&,gmail.com)