HomeMy WebLinkAboutSUB201700050 Study 2017-03-23a
Soils Study for Drain Field Sites
Parcels A-C
A Division of Tax Map 40-50
Albemarle County
SUB 2017-50
Prepared for:
Henley Limited Partnership
5876 Bearwood Road
Crozet, VA 22932
Prepared by:
Steve Gooch Consulting Geologist, Inc.
703 Oliver Creek Road
Troy, Virginia 22974
March 23, 2017
Page 1
of 6
OSE/PE Report for:
Construction Permit L.J Certification Letter 1-1 Subdivision Approval
Property Location:
911 Address:
Lot A Section _
GPIN or Tax Map # 40-50
Latitude
Applicant or Client Mailing Address:
Name: Henley Limited Partnership
Subdivision
Health Dept ID #.
Longitude
Street: 5876 Bearwood Road
City: Crozet State VA Zip Code 22932
Prepared by:
OSE Name Steve Gooch
Address 703 Oliver Creek Road
City Troy
PE Name:
Address
City
License # 1940001284
State VA Zip Code 22974
License #
State Zip Code
Date of Report 3/23/17 Date of Revision # 1
OSE/PE 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 Sheet
Abbreviated Design Form
Survey 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 any 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 paae 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): construction permit] certification letter subdivision approval Z✓
be (select one) issued] denied .
OSE/PE Signature hor j Date 3�Z-3
p4-7e- Z dor
cm
Cn
Soil Profile
Parcel A
A Division of TM 40-50
Jones Mill Road
Albemarle County
Hole
Depth
Horizon
Material Description Soil Texture
(in.)
Group
1
0-7
A
Brown (7.5YR 5/4) clay loam, friable
3
7-48
Bt
Red (I OR 5/8) silty clay, firm
4
48-64
Bt2
Red (2.5YR 5/8) silty clay loam, firm
3
64-120
C
Reddish yellow (7.5YR 6/8) clay loam, friable
3
2
0-4
A
Brown (7.5YR 5/4) clay loam, friable
3
4-20
Bt
Red (2.5YR 4/6) silty clay loam, firm
3
20-37
BC
Red (2.5YR 4/6) silty clay loam, firm w/yellowish brown
3
(1 OYR 5/8) sandy loam
37-120
C
Light reddish brown (5YR 6/4), yellowish brown
2
(I OYR 5/8) sandy loam, friable
3
0-10
A
Reddish brown (2.5YR 5/4) clay loam, friable
3
10-27
Bt
Red (I OR 5/8) silty clay loam, firm
3
27-43
Bt2
Red (2.5YR 5/8) clay loam, friable
3
43-73
BC
Red (2.5YR 5/8) clay loam, friable w/yellowish brown
3
(I OYR 5/8) loam
73-120
C
Brownish yellow (1OYR 6/8) loam, friable
2
4
0-8
A
Brown (7.5YR 5/4) clay loam, friable
3
8-46
Bt
Red (I OR 5/8) silty clay loam, firm
3
46-75
CB
Yellowish brown (1 OYR 5/8) sandy clay loam, friable
3
w/red (1 OR 5/8) clay loam
75-120
C
Yellowish brown (1OYR 5/8), light reddish brown
2
(5YR 6/4) sandy loam
5
0-4
A
Brown (7.5YR 5/4) clay loam, friable
3
4-37
Bt
Red (I OR 5/8) silty clay loam, firm
3
37-74
BC
Yellowish red (5YR 518) sandy clay loam, friable
3
74-120
C
Brownish yellow (I OYR 6/8) sandy loam, friable
2
6
0-6
A
Brown (7.5YR 5/4) clay loam, friable
3
6-34
Bt
Red (I OR 5/8) silty clay loam, firm
3
34-65
CB
Yellowish brown (1OYR 5/8) sandy clay loam, friable
3
w/red (I OR 5/8) clay loam
65-120
C
Brownish yellow (I OYR 6/8) sandy clay loam, friable
2
7
0-9
A
Brown (7.5YR 5/4) clay loam, friable
3
9-33
Bt
Red (I OR 5/8) silty clay loam, firm
3
33-56
CB
Strong brown (7.5YR 5/8) loam, red (1 OR 5/8) silty clay
3
loam
56-120
C
Brownish yellow (1 OYR 6/8) loam, friable
2
Diuh, $ ciJ l'0
on
Soil Profile
Parcel A
A Division of TM 40-50
Jones Mill Road
Albemarle County
Hole Depth
Horizon
Material Description
Soil Texture
(in.)
Group
8 0-8
A
Brown (7.5YR 5/4) clay loam, friable
3
8-23
Bt
Red (I OR 5/8) silty clay loam, firm
3
23-62
BC
Red (I OR 5/8) silty clay loam, firm, w/yellowish red
3
(5YR 5/8) sandy clay loam
62-120
C
Brownish yellow (IOYR 6/8), yellowish red (5YR 5/8)
2
sandy clay loam, friable
Page It of 6
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 12/19/16 Submitted to Albemarle County Health Department
Applicant Henley Limited Partnership Telephone Number (434) 953-7879
Address 5876 Bearwood Road Crozet, VA 22932
Owner same Address same
Location Jones Mill Road
Tax Map 40-50 Subdivision
Block/Section Lot A
SOIL INFORMATION SUMMARY
1. Position in landscape satisfactory? 19 Yes No
Describe shoulder
2. Slope 9 %
3. Depth to rock or impervious strata: Max. Min. None X
4. Depth to seasonal water table (gray mottling or gray color) I No Yes inches
Free water present iX No i Yes range in inches
Soil percolation rate estimated IR Yes Texture group I II II IV
I— No Estimated rate 75 min/inch
7. Permeability test performed F Yes
15? No
If yes, note type of test performed and attach
IX Site Approved: Drainfleld to be placed at 60" depth at site designated on permit.
l— Site Disapproved:
Reasons for rejection:
1. 1` Position in landscape subject to flooding or periodic saturation.
2. F Insufficient depth of suitable soil over hard rock.
3. i Insufficient depth of suitable soil to seansonal water table.
4. r Rates of absorption too slow.
5• I— Insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6. Proposed system too close to well.
.. Other Specify
(attach additional pages if necessary)
pq'�' S ur,-G
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 2"P"rimary and reserve area, ❑ only the primary area, ❑ only the reserve
area (check one) for Parcel A - A Division of Tax Ma 4n 0-50
Design Basis
Total length of available area: 210' Total width of available area: 105'
Estimated Pere. Rate: 75 at 60" in. (depth) Number of bedrooms (or GPD): 6
Conveyance Methods: Gravity Distribution method (specify): Gravity
3c
Dispersal system basis Table 5.4 LGMI required? No (Yes/No)
Effluent quality required: Primary (Primary, Secondary, Advanced Secondary)
Square feet per bedroom: 596
Area Calculations
Number of trenches 24
Width of trenches: 3'
Reserve required? Yes
Total width of absorption area required 102'
Total trench bottom area required: 7152
Length of trenches: 100'
Center to center spacing: 9'
Percent reserve area required: 100
Total trench bottom area provided: 7200
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 slape, than is required.
Page of
AOSE Form E Revised July 18, 2007
T, M. 40-22 HEALTH DEPARTME!
JOSEPH TEMPLE HENLEY III NOT FOR RECORD
& "4ARLES TIMOTHY HENLEY �/ o 0
0.6.1272-384-
`'""a, B . ! 19-286 OESC . IRON r� wkEEPLEOHXE#
YL�III.EY
SET O.B.i278-384
N47 `33' A 1"E A�g�` D . 8.18$-29i PLAT
FOWD ,� P ,; ed House ►Its
CATTLEGUARD--�.\V\.
ESES ALONG CENTERLINE
NG 50' R/w (0. S.1779-367)
T.M.40-50A
IS CLARK HENLEY &
JOHN HOSKIN
NLEY, 11 TRUSTEES
SREOTN
Fd
PARCEL A
0 22.62 ACRES
t� C
R DIlinery ��'WnfWd
Rpm*)*
t V _"
Ue
P�*,posed House She
` .. CA ftp08W
i� V�
+`++ �•
FL
AG
tit �ti
Posed Dralpffeld S1�
+ti �ti PARCEL B
��2�4`:�.7 ACRES
404
I
PR
.l ! 0
tat D'
GAS
LII-Imm
MARKI
La
Pf
i
PF
t
PF
p'yt° Scale 1"= 200' •- Soil Profile Hole
House, Well and Drain Field Sites
Parcel A
-A+V A Division of Tax Map 40-50
�4 Albemarle County, Virginia
Steve Gooch Consulting 4eol,
703 Oliver Creek Road
�tk Troy, Virginia 22974
Page 1 of 5
OSE/PE Report for:
Construction Permit 1J Certification Letter ! Subdivision Approval 7
Property Location:
911 Address:
Lot B Section
GPIN or Tax Map # 40-50
Latitude
Subdivision
Health Dept ID #
Longitude
Applicant or Client Mailing Address:
Name: Henley Limited Partnership
Street: 5876 Bearwood Road
City: Crozet
State VA Zip Code 22932
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 3/23117 Date of Revision # 1
OSE/PE 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 Sheet
Abbreviated Design Form
Survey 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 any 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.
17 The work attached to this cover page 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 permitu certification letteru subdivision approval U
""" be (select one) issued denied 1j.
OSE/PE Signature �..� Dater
taIa- 2- cW-s
M
cm
Soil Profile
Parcel B
A Division of TM 40-50
Jones Mill Road
Albemarle County
Hole
Depth
Horizon
Material Description Soil Texture
(in.)
Group
1
0-6
A
Reddish brown (2.5YR 4/4) sandy clay loam, friable
2
6-60
Bt
Red (I OR 4/8) silty clay loam, firm, 10-20% rock
3
fragments
2
0-6
A
Reddish brown (2.5YR 4/4) sandy clay loam, friable
2
6-16
Bt
Red (2.5YR 5/8) clay loam, friable
3
16-48
C
Brown (7.5YR 5/4) sandy loam, friable w/gneiss fragments 2
below 36"
48
Cr
50%+ gneiss fragments
3
0-6
A
Reddish brown (2.5YR 4/4) sandy clay loam, friable
2
6-18
Bt
Strong brown (7.5YR 5/8) clay loam, friable
3
18-60
CB
Yellowish brown (IOYR 5/8) sandy loam, reddish brown
3
clay loam, white (1OYR 8/1) feldspar (lithochromic),
gneiss fragments below 48"
4
0-6
A
Reddish brown (2.5YR 4/4) sandy clay loam, friable
2
6-30
Bt
Red (I OR 4/8) silty clay loam, firm
3
30-60
C
Light reddish brown (5YR 6/4) sandy clay loam, friable
2
5
0-6
A
Reddish brown (2.5YR 4/4) sandy clay loam, friable
2
6-31
Bt
Red (1 OR 4/8) silty clay loam, firm
3
31-60
CB
Yellowish red (5YR 5/8) sandy loam, friable w/yellowish
3
brown (1 OYR 5/8) silty clay loam
6
0-8
A
Reddish brown (2.5YR 4/4) sandy clay loam, friable
2
8-20
Bt
Red (I OR 4/8) silty clay loam, firm
3
20-60
C
Reddish brown (5YR 5/4) sandy clay loam, friable
2
w/weathered granite gneiss fragments below 54"
60- Cr
Page 3 of 4'
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 12/19/16 Submitted to Albemarle County Health Department
Applicant Henley Limited Partnership Telephone Number (434) 953-7879
Address 6876 Bearwood Road Crozet, VA 22932
Owner same Address same
Location Jones Mill Road
Tax Map 40-50 Subdivision
Block/Section Lot B
SOIL INFORMATION SUMMARY
1. Position in landscape satisfactory? RC Yes (" No
Describe shoulder
2. Slope 9 %
3. Depth to rock or impervious strata: Max. 6011+ Min. 4811 None
4. Depth to seasonal water table (gray mottling or gray color) fX No Yes inches
Free water present G`c No I— Yes range in inches
`Soil percolation rate estimated IR Yes Texture group 1 II II IV
r No Estimated rate 75 min/inch
7. Permeability test performed I Yes
No
If yes, note type of test performed and attach
rx Site Approved: Drainfield to be placed at 24" depth at site designated on permit.
i 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. Insufficient depth of suitable soil to seansonal water table.
4. F Rates of absorption too slow.
5. (— insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6. F Proposed system too close to well.
.,... 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 Vrimary and reserve area, 0 only the primary area, ❑ only the reserve
area (check one) for Parcel B - A Division of Tax Map 40-50
Design Basis
Total length of available area: 100, Total width of available area: 150,
Estimated Pere. Rate: 75 at 24" in. (depth) Number of bedrooms (or GPD): 4
1 Conveyance Method : Gravity 2
Distribution method (specify): Gravity
3c
Dispersal system basis Table 5.4 LGMI required? No (Yes/No)
Effluent quality required: Primary (Primary, Secondary, Advanced Secondary)
Square feet per bedroom: 596
Area Calculations
Number of trenches 16
Width of trenches: 3'
Reserve required? Yes
Total width of absorption area required 138'
Total trench bottom area required: _4800
Length of trenches: 100'
Center to center spacing: _ 9'
Percent reserve area required: 100
Total trench bottom area provided: 476�___ 8
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
��.A o
C
CA
SET
COURSES ALONG CENTEALINE
(ISTIN6 50'R/W (D.8.1779--367)
..INE.
BEARINS
DISTANCE
Li
S44.01'37"W
30.34
L2
S51'23'35"W
30.48
L3
•-•S57 "4!5' 27"W
35.43
1 362 "W 4o"W
81.69
L.5
658.18' 04"W
52.66
L51
S6 V24'20"W
47.14
L71
S54'53' i1" W
137.97
8
859'15`27"W
58.94
L91S48'21'
02"W
Mots
ELi
rrr.w,.rrwrn
840152'34"W
54.84
837'57 "W
68. 52
L12
S35"08'00"W
92.42
L13
S33'14'02"W
148.06
L14
639.48'04"W
169.19
L15
S318*18'25"W1
98.21
To 14.40-50A
ELLIS CLARK HE Y 6
JOHN HOSKIE
"HLEY 11 TRUSTEES
0.b.3130-1
.8.1451-1 3 PLAT
D.8.819-71
0.8.587-276
0.8.393-31,38 PLAT
CID
GAS y
MARKER '9
x
IRON
FOUND
FOUND
IRON
SET
VOW
ftpsw Well
Pr dosed House Site
SIM
.*'.__
A9
+d i7r )nfle)d Si
y and Re$
24 xl� C�ES
q
q ��llt
s7
q � ITgJ. o
(NMary and Fimi'Ue)
�g
� FLAB
U � ri
ftMOd Hulse Sb
PARCEL C
24.11 ACRES
Scale 1 "-= 200' • - Soil .Profile Hole
House, Well and Drain Field Sites
Parcel B
A Division of Tax Map 40-50
Albemarle County, Virginia
Steve Gooch Consulting Geologist
703 Oliver Creek Road
Troy, Virginia 22974
IRON -
SET
Page 1
of 5
OSETE Report for:
Construction Permit D Certification Letter n Subdivision Approval
Property Location:
911 Address:
Lot C Section _
GPIN or Tax Map # 40-50
Latitude
Applicant or Client Mailing Address:
Name: Henley Limited Partnership
Street: 5876 Bearwood Road
City: Crozet
Prepared by:
OSE Name Steve Gooch
Address 703 Oliver Creek Road
City Troy
PE Name:
Address
City _
Subdivision
Health Dept ID #
Longitude
State VA Zip Code 22932
License # 1940001284
State VA Zip Code 22974
License #
State Zip Code
Date of Report 3/23/17 Date of Revision # 1
OSE/PE 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 Sheet
Abbreviated Design Form
Survey 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 any 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.
17 The work attached to this cover page 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) issueda denied H .
OSE/PE Signature 1'J &q- h�k Date 3l n 1-2
F� z �
Soil Profile
Parcel C
A Division of TM 40-50
Jones Mill Road
*4W Albemarle County
Hole Depth
Horizon
Material Description
Soil Texture
(in.)
Group
1 0-9
A
Brown (7.5YR 4/4) loam, friable
2
9-28
Bt
Red (2.5YR 4/8) silty clay loam, firm
3
28-40
BC
Reddish yellow (7.5YR 6/8) sandy clay, firm
4
40-72
C1
Yellowish brown (10YR 5/8) clay loam, friable
3
72-120
C2
Yellow (I OYR 7/8) sandy clay loam, massive, friable
2
2 0-9
A
Brown (7.5YR 4/4) loam, friable
2
9-42
Bt
Red (2.5YR 4/8) silty clay loam, firm
3
42-78
BC
Reddish yellow (7.5YR 6/8) sandy clay, firm
4
78-120
C
Yellowish brown (1 OYR 5/8) sandy clay loam, massive, 2
friable, white (10YR 8/1) feldspar (lithochromic)
3
4
5
C
0-6 A
Dark grayish brown (I OYR 4/2) loam, friable
2
6-16 E
Yellowish brown (I OYR 5/6) sandy loam, friable
2
16-48 Bt
Red (I OR 5/8) silty clay loam, yellow (I OYR 7/8) mottles,
3
firm
48-102 BC
Yellowish red (10YR 5/8) silty clay loam, firm
3
102-120 C
Reddish yellow (I OYR 6/8) sandy clay loam, massive,
2
friable
0-6 A
Brown (7.5YR 4/4) loam, friable
2
6-24 Bt
Red (2.5YR 4/8) silty clay loam, firm
3
24-84 BC
Yellowish red (5Y 5/8) sandy clay loam, massive, friable
2
white (10 8/1) feldspar (lithochromic)
84-120 C
Yellow (10YR7/8) sandy clay loam, massive, friable, white 2
(10 8/1) feldspar (lithochromic)
0-11 A
Brown (7.5YR 4/4) loam, friable
2
11-24 Bt
Light red (2.5YR 6/8) silty clay loam, firm
3
24-39 Bt2
Brownish yellow (1OYR 6/8) silty clay loam, firm
3
39-84 BC
Red (I OR 5/8) silty clay, firm, yellow (I OYR 7/8) sandy
4
clay loam, white (I OYR 8/1) feldspar (lithochromic)
84-120 C
Yellowish red (5YR 5/8) sandy clay loam, massive, friable
2
0-12 A
Brown (7.5YR 4/4) loam, friable
2
12-35 Bt
Yellowish red (5YR 5/8) silty clay loam, firm
3
35-60 CB
Yellowish brown (I OYR 5/8) silty clay loam, firm w/red
3
(2.5YR 5/8) silty clay
60-120 C
Brownish yellow (1 OYR 6/8) sandy clay loam, massive,
2
friable
Page 3 of 4-
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 12/19/16 Submitted to Albemarle County Health Department
Applicant Henley Limited Partnership Telephone Number (434) 953-7879
Address 5876 Bearwood Road Crozet, VA 22932
Owner same Address same
Location Jones Mill Road
Tax Map 40-50 Subdivision
Block/Section Lot C
SOIL INFORMATION SUMMARY
I. Position in landscape satisfactory? fx Yes r No
Describe shoulder
2. Slope 3 %
3. Depth to rock or impervious strata: Max. Min. None x
4. Depth to seasonal water table (gray mottling or gray color) `c No I Yes inches
- Free water present iX No F Yes range in inches
.'`Soil percolation rate estimated IR Yes Texture group 1 II II IV
r No Estimated rate 65 min/inch
7. Permeability test performed I— Yes
(X No
If yes, note type of test performed and attach
Site Approved: Drainfield to be placed at 96" depth at site designated on permit.
i— Site Disapproved:
Reasons for rejection:
1. F 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. I— Insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6. F Proposed system too close to well.
F Other Specify
(attach additional pages if necessary)
lM
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 R/Primary and reserve area, ❑ only the primary area, ❑ only the reserve
area (check one) for Parcel C - A Division of Tax Map 40-50
Design Basis
Total length of available area: 100, Total width of available area: 135'
Estimated Perc. Rate: 65 at 96" in. (depth) Number of bedrooms (or GPD): 4
1
Conveyance Method : Gravity Distribution method (specify :- Gravity
3c
Dispersal system basis Table e 5.4_ LGMI required? No (Yes/No)
Effluent quality required: Primari (Primary, Secondary, Advanced Secondary)
Square feet per bedroom: 496
Area Calculations
Number of trenches 14
Width of trenches: 3'
Reserve required? Yes
Total width of absorption area required 120'
Total trench bottom area required: 3968
Length of trenches: 100'
Center to center spacing: _ 9'
Percent reserve area required: 100
Total trench bottom area provided: 4200
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
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House, Well and Drain Field Sites
Parcel C
A Division of Tax Map 40-50
Albemarle County, Virginia
Steve Gooch Consulting Geologist
703 Oliver Creek Road
Troy, V*rgJ ' 22974