HomeMy WebLinkAboutSUB202200207 Other 2022-12-21Soils Study for Drain Field Sites
A Subdivision of Tax Map 123-34C8
The Farms at Jefferson Mill — Lot 8
Albemarle County
SUB202200207
Prepared for:
Murcielago, LLC
27 Congress Street, Suite 502
Salem, MA 01970-4264
Prepared by:
Steve Gooch Consulting Geologist, Inc.
703 Oliver Creek Road
Troy, Virginia 22974
December 10, 2022
Page 1 of S
OSE/PE Report for:
Construction Permit 0 Certification Letter El Subdivision Approval a
Property Location:
911 Address: 6478 Jefferson Mill Road
Lot 8A Section
GPIN or Tax Map # 123-34C8
Latitude
Subdivision The Farms at Jefferson Mill
Health Dept ID #
Longitude
Applicant or Client Mailing Address:
Name: Murcielago, LLC
Street: 27 Congress Street, Suite 502
City; Salem
State MA Zip Code 01970-4264
Prepared by:
OSE Name Steve Gooch
Address 703 Oliver Creek Road
License # 1940001284
City Troy
PE Name:
Address
State VA Zip Code 22974
License #
City
State Zip Code
Date of Report 12/10122 Date of Revision # 1
OSEIPE Job # Date of Revision #2
Contents/index of this report (e.g., Site Evaluation Summary, Soil Profile Descriptions, Site Sketch, Abbreviated Design, etc.)
OSE Cover Page
Soil Profile Sheets
Soil Information Summary Sheets
Abbreviated Design Forms
Plat
Certification Statement
I hereby certify that the evaluations and/or designs contained herein were conducted in accordance with the Sewage Handling and
Disposal Regulations (12 VAC5-610), the Private Well Regulations (12 VAC5-630) and all other applicable laws, regulations and
policies implemented by the Virginia Department of Health. I further certify that I currently possess my professional license required
by the laws and regulations of the Commonwealth that have been duly issued by the applicable agency charged with licensure to
perform the work contained herein.
The work attached to this cover pace has been conducted under an exemption to the practice of engineering„ specifically the
exemption in Code of Virginia Section 54.1-402.11
I recommend that a (select one): nstruction permit certification letter subdivision approval z
be (select one) issued denied .
OSEIPE Signature "t)t& c- Date / Z// o[ ZZ,
2- OF 7
Soil Profile
Primary Drain Field
Lot 8A
A Division of Tax Map 123-34C8
Jefferson Mill Road
Albemarle County
Hole
Depth
Horizon
Material Description Soil Texture
(in.)
Group
1
0-1
A
Gray (IOYR 511) loam, friable
2
1-7
E
Light yellowish brown (2.5Y 6/4) clay loam, friable
3
7-28
Bt
Yellowish red (5YR 5/8) clay loam, friable
3
28-48
C
Light olive brown (2.5Y 5/4), pale red (IOR 6/4) clay loam, 3
25% weathered schist fragments below 36"
48-
Cr
2
0-1
A
Gray (IOYR 511) loam, friable
2
1-7
E
Light yellowish brown (2.5Y 6/4) clay loam, friable
3
7-27
Bt
Red (2.5YR 5/8) clay loam, friable
3
27-84
CBt
Light red (2.5YR 6/6) silt loam, 10% yellow (1 OYR 7/8)
3
weathered schist charmers 34"-54"
3
0-2
A
Gray (IOYR 511) loam, friable
2
2-9
E
Light yellowish brown (2.5Y 6/4) clay loam, friable
3
9-34
Bt
Yellowish red (5YR 5/8) clay loam, friable
3
34-45
Bt2
Yellowish red (5YR 5/8) clay loam, friable
3
45-60
C
Weak red (5R 5/4) schist saprolite, crushes to silt loam,
3
25% hard schist charmers
4
0-2
A
Gray (10YR 511) loam, friable
2
2-14
E
Light yellowish brown (2.5Y 6/4) clay loam, friable
3
14-37
Bt
Yellowish red (5YR 5/8) clay loam, friable
3
37-62
CI
Yellow (10YR 7/8) silt loam, friable
3
62-84
C2
Light red (2.5YR 6/8) silt loam, friable
3
5
0-2
A
Gray (IOYR 511) loam, friable
2
2-8
E
Light yellowish brown (2.5Y 6/4) clay loam, friable
3
8-30
Bt
Yellowish red (5YR 5/8) clay loam, friable
3
30-47
Bt2
Red (2.5YR 5/8) silty clay loam, firm
3
47-84
C
Yellowish red (5YR 5/8), light reddish brown (5YR 6/4)
3
silt loam, friable
Page 2 of 7
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 11/26/22 Submitted to Albemarle County Health Department
Applicant Murcielago LLC Telephone Number (703) 625-1553
Address 27 Congress Street Suite 502 Salem, MA 019704264
Owner same Address same
Location 6478 Jefferson Mill Road
Tax Map 123-34C8 Subdivision Farms at Jefferson Mill
Block/Section Lot 8A
SOIL INFORMATION SUMMARY
1. Position in landscape satisfactory? Fx- Yes j- No
Describe shoulder
2. Slope 8 %
3. Depth to rock or impervious strata: Max. 84"* Min. 48„ None
4. Depth to seasonal water table (gray mottling or gray color) FX- No r Yes inches
5. Free water present Fx- No r Yes range in inches
6. Soil percolation rate estimated fX- Yes Texture group I II III IV
F- No Estimated rate 75 min/inch
7. Permeability test performed I- Yes
IR No
If yes, note type of test performed and attach
Ix Site Approved: Drainfield to be placed at 30„ depth at site designated on permit.
F- Site Disapproved:
Reasons for rejection:
1 - Position in landscape subject to flooding or periodic saturation.
2. Insufficient depth of suitable soil over hard rock.
3. r- Insufficient depth of suitable soil to seansonal water table.
4. r- Rates of absorption too slow.
5. F- Insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6. I- Proposed system too close to well.
7. F- Other Specify
(attach additional pages if necessary)
Abbreviated Design Form
This form is for use with gravity, pump to gravity, enhanced flow, and low pressure distribution (LPD) sewage system
designs and when applying for a certification letter or subdivision approval.
This abbreviated design covers the O primary and reserve area, Elonly the primary area, O only the reserve
area (check one) for Lot 8A - Farms at Jefferson Mill
Design Basis
Total length of available area: 145' Total width of available area: 90'
Estimated Perc. Rate: 75 at 30" in. (depth) Number of bedrooms (or GPD): 4
1 2
Conveyance Method : Gravity Distribution method (specify): Gravity
Dispersal system basis'cTable 5.4 LGMI required? No (Yes/No)
Effluent quality required: Primary (Primary, Secondary, Advanced Secondary)
Square feet per bedroom: 596 Total trench bottom area required: 2384
Area Calculations
Number of trenches 12
Width of trenches: 3'
Reserve required? Yes
Total width of absorption area required 48'*
Length of trenches: 70'
Center to center spacing: 9'
Percent reserve area required: 100
Total trench bottom area provided: 2520
The required width is calculated by multiplying the center -to -center spacing by one less than the number
of trenches and adding 1 trench width plus any required reserve area. If the topography is not uniform
across the length of the site the trenches will need to flare apart on one end to maintain contour. When
this occurs it is necessary to use a center -to -center spacing that accounts for the flair or the installer will
not be able to fit the system within the approved area. It is perfectly acceptable to have more area
available, especially up and down the slope, than is required.
"system will butterfly
Page _ of
AOSE Fenn E Revised July 18, 2007
Soil Profile
Reserve Drain Field
Lot 8A
A Division of Tax Map 123-34C8
Jefferson Mill Road
Albemarle County
Hole Depth
Horizon
Material Description
Soil Texture
(in.)
Group
1 0-1
A
Gray (I OYR 5/1) loam, friable
2
1-7
E
Light yellowish brown (2.5Y 6/4) clay loam, friable
3
7-28
Bt
Yellowish red (5YR 5/8) clay loam, friable
3
28-48
C
Light olive brown (2.5Y 5/4), pale red (IOR 6/4) clay
loam, 3
25% weathered schist fragments below 36"
48- Cr
2 0-1
A
Gray (I OYR 5/1) loam, friable 2
1-7
E
Light yellowish brown (2.5Y 6/4) clay loam, friable 3
7-27
Bt
Red (2.5YR 5/8) clay loam, friable 3
27-84
CBt
Light red (2.5YR 6/6) silt loam, 10% yellow (I OYR 7/8) 3
weathered schist channers 34"-54"
7 0-1
A
Gray (10YR 511) loam, friable 2
1-4
E
Light yellowish brown (2.5Y 6/4) clay loam, friable 3
4-22
Bt
Yellowish red (5YR 5/8) clay loam, friable 3
22-32
Bt2
Strong brown (7.5YR 5/8) clay loam, friable, manganese 3
stains below 26"
32-48
C
Brownish yellow (1 OYR 6/8) silt loam, 30% weathered 3
schist charmers, friable
48-
Cr
8 0-1
A
Gray (I OYR 511) loam, friable 2
1-4
E
Light yellowish brown (2.5Y 6/4) clay loam, friable 3
4-22
Bt
Yellowish brown (10YR 5/4) silty clay loam, firm 3
22-40
Bt2
Yellowish brown (1 OYR 5/8) clay loam, 10% weathered 3
schist channers, friable
40-45
Cr
Weak red channery silt loam, 60% schist charmers 3
45-
R
9 0-2
A
Gray (I OYR 511) loam, friable 2
2-7
E
Light yellowish brown (2.5Y 6/4) clay loam, friable 3
7-40
Bt
Strong brown (7.5YR 5/8) clay loam, 10% weathered 3
Schist channers, friable
40-49
C1
Pale red (I OR 7/4) silt loam, friable 3
49-60
C2
Red (1 OR 4/6) sandy loam, friable 2
Page & of _7
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 11/26/22 Submitted to Albemarle County Health Department
Applicant Murcielago LLC Telephone Number (703) 625-1553
Address 27 Congress Street Suite 502 Salem, MA 01970-4264
Owner same Address same
Location 6478 Jefferson Mill Road
Tax Map 123-34C8 Subdivision Farms at Jefferson Mill
Block/Section Lot 8A
SOIL INFORMATION SUMMARY-
1. Position in landscape satisfactory? rx- Yes F- No
Describe shoulder
2. Slope 8 %
3. Depth to rock or impervious strata: Max. 84"+ Min. 26" None
4. Depth to seasonal water table (gray mottling or gray color) FX- No F— Yes inches
5. Free water present rX- No F- Yes range in inches
6. Soil percolation rate estimated r Yes Texture group 1 II II IV
F— No Estimated rate 90 min/inch
7. Permeability test performed r Yes
R No
If yes, note type of test performed and attach
r Site Approved: Drainfield to be placed at 18" depth at site designated on permit.
r Site Disapproved:
Reasons for rejection:
1 r Position in landscape subject to flooding or periodic saturation.
2. F— Insufficient depth of suitable soil over hard rock.
3. F- Insufficient depth of suitable soil to seansonal water table.
4. F- Rates of absorption too slow.
5. r Insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6. F— Proposed system too close to well.
7. r Other Specify
(attach additional pages if necessary)
Abbreviated Design Form
This form is for use with gravity, pump to gravity, enhanced flow, and low pressure distribution (LPD) sewage system
designs and when applying for a certification letter or subdivision approval.
This abbreviated design covers the 0 primary and reserve area, 0 only the primary area, Z,6nly the reserve
area (check one) for Lot 8A -Farms at Jefferson Mill
Design Basis
Total length of available area: 100, Total width of available area: 50'
Estimated Perc. Rate: 90 at 18" in. (depth) Number of bedrooms (or GPD): 4
Conveyance Method': Pump Distribution method (Specify): Pump__
Dispersal system basis3cVDH Loading Rate Guidance Table LGMI required? No (Yes/No)
Effluent quality required: Advanced Secondary (TL3) (Primary, Secondary, Advanced Secondary)
Square feet per bedroom: 268 Total trench bottom area required: 1072
LPD/trench
Linear loading rate — 0.56 gpd/sgft
Area Calculations
Number of trenches 6
Width of trenches: 3'
Reserve required? This is reserve
Total width of absorption area required 48;
Length of trenches: 65'
Center to center spacing: 9'
Percent reserve area required: 100
Total trench bottom area provided: 1170
The required width is calculated by multiplying the center -to -center spacing by one less than the number
of trenches and adding 1 trench width plus any required reserve area. If the topography is not uniform
across the length of the site the trenches will need to flare apart on one end to maintain contour. When
this occurs it is necessary to use a center -to -center spacing that accounts for the flair or the installer will
not be able to fit the system within the approved area. It is perfectly acceptable to have more area
available, especially up and down the slope, than is required.
Page _ of_
AOSE Form E Revised July 18, 2007
T.M.123-34C7
LOT 7
THE FARMS OF JEFFERSON MILL
MURCIELAGO,LLC
D.B.3695-266 & 267 PLAT
0.8.2218-296
S�1 2g
12�s e61'E
EXISTING DRAT
FIELD (.APPRO)
100'5TRE4A \
STREAM `��
c
PROPOSED RESET
MAIN FIELD
tOp SrPCA, B FF9 DRAIN i D IAL4
T.M.123-34CS
RESIDUE LOT 8
22.00+/- PROPO
MURCIELAGO DRAIN
D.B.3695-266 & 267 Pill
0. 8.2218-296/�
r;V? o
EXISTING WELL / j
(.APPROX,) ���
EXISTING HOUSE
(.APPROX.)
EXISTING DRAIN
FIELD (APPROX.)
Mnn+h '7RZAQRi. TOM
Scale 1 "= 200' • - Soil Profile Hole
House, Well and Drain Field Sites
Lot 8A
The Farms at Jefferson Mill
A Division of Tax Map 123-34C8
Albemarle Countv. VA
Steve Gooch Consulting Geologist
703 Oliver Creek Road
Troy, Virginia 22974
VICINITY MAP
SCALE: 1' 2000'+/- SITE JEF6-1-8 N
MILL
ROAD
RACOON
RIDGE 622
ALBEVANNA
SPRINGS
ROAD
th 3835407
t 11493958
EXISTING WELL 3262
FOUND (APPROX.) 4392
)sift4' F0UN0
RON PROPOSED 23 20'W
3ET WELL 9.20'
IRON PROPOSED '50-W
6 LOT 3BA SET HOUSE SITE 55'
0 3.33 ACRES S21.32'20'W
o 4 IRON ; 156.55'
2
S p0 SET S21'18'30'W
IRON 45.30'
F
;ED RESERVE - I / S��
AT 1ELD4L8EV4% p0AAN� B22
' �{ STATE ROUTE 6i8
V T r A-11 JEFFERSON MILL ROAD
�ti4t/ / 40 - R/W
i (D . B. 396-518)
a / i
�2 s
SHEET 3 OF 3
NOTE: DRXLN FIELD AND RESERVE
FOR RESIDUE (LOT 8) PER HEALTH
DEPARTMENT PERMIT ID# 101-1"319