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July 30,2024
Natallia Kharkal
2t050NE 3SthAvornre,
Apt. 1804
Aventura, Florida 33 1 80
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Project No. 2l-7-761
Subject:Observation af Cornpleted Excavation, Pnrposed Duplex Residence, Lot D-34,
Aspen Glen, 65 Upland, Garfield County, Coloraelo
Dear Natallia:
As requested, a representative of Kumar & Associates, Inc. observed the excavation at the
subject site on July 30, 3024 to evaluate the soils exposed for fbundation suppo'rt. The findings
of cur observations and recommendations for the foundation design are presented in this report.
We previously conductecl a subsoil study for design of foundations at the site, report dated
Octalrer lg,202l,Prnject No. 21-?-?61 arrd abserved the basement exsavation, report dated
July 25, ?0?3, Project No. 2l-7-?61.A. We observed the garage excavations as described in
aur letter dated MaY 15,2il24.
At tbe time of our most recent visit to the site, the concrete basement fbotings and fcrundation
walls were in place and conditions were sirniiar to those previously reported. The foatings for
the connecting foundation between the two units had been forrned and rebar was in place. We
understand that concrets will be placed for these footings on Friday, August ?"d. The soils
exposed in the foundatian excavalion for these footings consisted of relatively dense, slightiy
silty sand and gravel with cobbles. No fi"ee water was encountered in the excavation and the
soils were slightly rncist. Scrne waterproofing anri backfilling ofbaseinent walls has ocsurred
between the two units'
The gravel soils exposed in the excavation are consistent with those previously encountsrsd on
the site. Fr:undatians placed on the gravel soils should be suitable for support of spread fbotings
designed for the recommenclsd allowable bearing pressure of 3,000 psf. Loose and disturbsd
soils shoulel be removed in the faoting areas tc expose the undistruted natural gravel sr:ils.
Other r-ecommendations presented in our previous report which are applicable should also be
observed.
The recommendations submitted in this letter are bassd oR our ol'rservation of the soils exposed
within the foundatian excavation and the previous subsurface exploration at the site. Variatinrrs
in the subsurface conditions below the excavation could increase the risk of *:undation
movement. We shouid be advised of any variations encountered in the excavation conditions
for possible changes to resommendations contained in this ietter. Our services do not include
Natallia Kharkal
July 30, ?024
Page 2
determining the prcsence, preventian or possibility of mold or other biological contarninants
{MOgCi developing in the future. Ifthe client is concsrned about MOBC, then a professional
in this special field afpraetice should be consulted.
If you have any questions or nsed further assistance, please call our aflice'
Sincerely,
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