HomeMy WebLinkAboutVA199400007 Other 1994-06-29 •
Applied Technology and Engineering, P.C.
1115 5th Street S.W.
Charlottesville, Virginia 22902-6465
Phone: (804) 977-1498
Fax: (804) 977-6778
June 29, 1994
Mr. W.B. Downer
320 Key West Drive
Charlottesville,Virginia 22901
Re: Soils Study
Lot 4 Block B Section 1
Key West
Albemarle County
Dear Mr. Downer:
As requested we have completed a soils study at the referenced site. The purpose of the study was
to determine the suitability of the soils for the disposal of sewage by means of a septic tank
drainfield system. The investigation has consisted of drilling a series of six (6) hand auger test
holes to determine soil profiles on the lot. A log of each test hole is shown on the enclosed soil
profile sheet. The approximate location of the soil profile holes is shown on the enclosed plat
showing a resurvey of Block B Section One "Cedar Hills" prepared by William S. Roudabush
dated July 9, 1974 The holes have been flagged with orange ribbon for future reference. Also
enclosed is a soil information summary sheet containing information pertinent to the design of the
potential drainfield.
We understand that you would like to transfer a strip approximately 50 feet wide along the
southeast lot line from Lot 4 to Lot 3. The proposed new lot line had not been staked at the time of
our investigation.
Based on our investigation, it is our opinion that soils in the vicinity of holes A-E are suitable for
installation of drainfield lines under the current Health Department regulations. Due to a
drainageway that runs through the front portion of the lot,slopes that exceed 25% and shallow soil
cover over bedrock in the vicinity of hole F, the house will have to be positioned so it does not
interfere with the drainfield site. It may be necessary to limit the house to three (3) bedrooms to
insure sufficient area to support the primary and 100% reserve drainfield sites required by the
county.
The contents of this report reflect our opinion as to the suitability of the soils in the area
investigated to support a septic tank/drainfield system under the current Health Department
regulations. Final approval and design of the drainfield rests with the Charlottesville-Albemarle
Health Department.
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We hope this is the information you need. If you have any questions, please let us know.
Sincerely,
ct--k)..re_.
Steve Gooch
End.
cc'VED
JUI. 7 1994
;!'iy
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Soil Profile
Lot 4 Block B Section 1
Key West
Hole Depth Material Description Soil Texture
(in.) Group
A 0-20 Reddish brown(2.5YR 4/3) friable clay loam 3
20-48 Dark red (2.5YR 3/6) firm silty clay loam 3
48-72 Yellowish red(5YR 5/6) friable clay loam 3
B 0-7 Reddish brown(2.5YR 4/3) friable clay loam 3
7-22 Dark red (2.5YR 3/6) firm silty clay loam 3
22-39 Brownish yellow (10YR 6/6) friable clay loam,some weathered 3
greenstone fragments
39- Hand auger refusal - weathered greenstone
C 0-36 Weak red(10R 4/3) friable clay loam 3
36-48 Yellowish red(5YR 5/8) friable clay loam 3
48-60 Light yellowish brown (2.5Y 6/4) friable clay loam 3
D 0-6 Weak red(10R 4/3) friable clay loam 3
6-23 Dark red(10R 3/6) firm silty clay loam 3
23-42 Reddish brown (2.5YR 4/3) friable clay loam 3
42-60 Yellowish brown(10YR 5/8) friable clay loam 3
E 0-12 Weak red(10R 4/3) friable clay loam 3
12-36 Red (2.5YR 5/6) friable clay loam 3
36-60 Yellowish red(5YR 4/6) friable clay loam 3
F 0-7 Weak red(10R 4/3) friable clay loam 3
7-14 Weathered greenstone(Horizon - Cr)
14- Hand auger refusal
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Soil Information Summary
Lot 4 Block B Section 1
Key West
Albemarle County
1) Position on slope information - Position satisfactory, hillside
2) Slope - 15%
3) Depth to rock/impervious strata- Max -72 inches+ Min. 39 inches
4) Depth to seasonal water table-72 inches+
5) Free water present-No
6) Soil percolation rate estimated-60 Co26"
7) Percolation tests performed - No
Comments: The drainficld site is limited by a large drainageway that runs through
the front of the lot, slopes that exceed 25% and shallow soil cover over bedrock in
the vicinity of hole F. The house will have to be sited so it does not interfere with
the potential drainfield. It is possible that a pump system will be required for a reserve
drainfield located in the vicinity of holes C and E. The house will probably have to
be limited to 3 bedrooms to insure sufficient area for the primary and 100%reserve
drainfield sites.
.
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PLAT SHOWING A RE- SURVEY OF
BLOC K B - SECTION ONE
"CEDAR HILLS "
(WITH REAR BOUNDARY LINE OF L OTS CONFORMING
TO LINE A'- B, ESTABLISHED IN D. S. 285p. 177 ) aLT11 op'
plb
NEAR CHA RLOT TESVILLE �0$ j
ALBEMARLE COUNTY , VA. o � Irb. L O A
N,.,
V CERT. NO.
54.17.3 (a) 655
,, 54.17.3 (b) 78 0
♦r �4
''ix. L A ND ft*
WILLIAM S. ROUDABUSF t, JR.
/ + l00` Jul)" /9T4 CERTIFIED,LAND SURVEYO
SCALE: DATE: r + Charlottesville Virginia