HomeMy WebLinkAboutPalaterra Lts 2A and 3A - S12364Onsite File
Palaterra
#S12364
f NORTHERN GEOTECHNICAL ENGINEERING, INC. / TERRA FIRMA TESTING
Laboratory Testing Geotechnical Engineering Instrumentation Construction Monitoring Services Thermal Anal
November 18, 2015 NGE-TFT Project # 4237-15
Benchmark Architecture
P.O. Box 230247
Anchorage, AK 99523
Attn: Scott DePalatis
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RE: GEOTECHNICAL REPORT FOR THE PROPOSED DE A0 rno C cppeac +0
BLOCKS 2 & 4 OF THE PALATERRA SUBDIVISION
ALASKA Pef�C.tcc�`
Scott,
Per your request, we (Northern Geotechnical Engineering, Inc. d. b. a. Terra Firma Testing)
have completed a geotechnical assessment of Blocks 2 & 4 of the Palaterra Subdivision in
Anchorage, Alaska. The results of our assessment indicate that the soils located onsite are
suitable for support of the proposed improvements.
The near surface (<10 feet bgs) soils at the site consist of silt and silty sand and gravels.
These silty soils are generally impermeable, which can impact foundation drainage, as well
as potential septic systems. We conducted percolation testing across the site to determine
the permeability of the soils between 5 and 10 feet. The results of the percolation testing
indicate that the site is generally unsuitable for typical septic systems. Advanced
wastewater treatment systems or a community septic system may be appropriate for this
site.
We greatly appreciate the opportunity to provide you with our professional services. Please
feel free to contact us with any questions or comments you may have regarding the
information presented in this report.
Sincerely,
Northern Geotechnical Engineering, Inc. d.b.a. Terra Firma Testing,
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