HomeMy WebLinkAboutSUB201300010 Study 2013-02-04 ��` i' �
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Soils Study for Drain Field Sites
Lots A and B
A Division of Tax Map 56-100
Albemarle County
Prepared fo�:
S. Daley Craig,Jr.
715 Half Mile Branch Road
Crozet, Virginia 22932
Prepa��ed by:
Gooch Engineering& Testing,Inc.
1821 Broadway Street
Charlottesville, VA 22902 �
February 4, 2013
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In Cooperation with the Thomas Jefferson Health District ALBEMARLE-CHARLOTTESVILLE
State Department of Health FLUVANNA COUNTY(PALMYRA)
1138 Rose Hill Drive GREENE COUNTY(STANARDSVILLE)
LOUISA COUNTY(LOUISA)
Phone(434)972-6219 P. O. Box 7546 NELSON COUNTY(LOVINGSTON)
Fax (434)972-4310
Charlottesville, Virginia 22906
March 7,2013
J.T.Newberry
Planning Services
Department of Community Development
401 Mclntire Road
Charlottesville, Virginia 22902-4596
RE: Review of Proposed Subdivision Plat and attached Soils Information for Individual
Onsite Sewage Systems as part of a division of Tax Map 56 Parcel l00 located in
Albemarle County,Virginia.
Dear Mr.Newberry:
On February 6,2013,the County of Albemarle requested the Virginia Department of Health(via the Albemarle
County Health Department)review the proposed subdivision plat identified above. This letter is to inform you
that the above referenced subdivision plat is approved for individual Onsite Sewage Systems in
accordance with the provisions of the Code of Virginfa,the Sewage Handling and Disposal Regulations,
and local ordinances.
This request for subdivision review was submitted pursuant to the provisions of§ 32.1-163.5 of the Code of
Virginia which requires the Health Department to accept private soil evaluations and designs from an
Authorized Onsite Soil Evaluator(AOSE)or a Professional Engineer working in consultation with an AOSE for
residential development. This subdivision was certitied as being in compliance with the Board of Health's
Regulations by: Steve Gooch; OSE# 1940-0001284. This subdivision approval is issued in reliance upon
that certification.
Pursuant to § 360 of the Regulations this approval is not an assurance that Sewage Disposal System
Construction Permits will be issued for any lot in the subdivision identified above unless that lot is specifically
identified on the above referenced plat as having an approved site for an onsite sewage disposal system,and
unless all conditions and circumstances are present at the time of application for a permit as are present at the
time of this approval. This subdivision may contain lots that to do not have approved sites for onsite sewage
systems.
This subdivision approval does pertain to the requirements of local ordinances.
Sincerely,
�it.�= � �
Travis T. Davis
Environmental Health Specialist Senior
.
Page � of 8
OSE/PE Report for:
Construction Permit� Certification Letter� Subdivision Approval�
Property Location:
911 Address: C��,: CroZet
Lot A Section Subdivision
GPIN or Tax Map# 56-100 Health Dept ID#
Latitude Longitude
Applicant or Client Mailing Address:
Name: S. Daley Craig
Street: 715 Half Mile Branch Road
City:Crozet State Virginia Zip Code 22932
Prepared by:
OSE Name Steve Gooch License# 1940001284
Address 1821 Broadway Street
City Charlottesville state Virginia Zip Code 22902
PE Name: License#
Address
City State Zip Code
Date of Report 2�4�13 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 Abbreviated Design Forms
Soil Profile Sheets Survey Plat
Soil Information Summary Sheets
Certification Statement
I hereby certify that the evaluatiais and/or designs contained herein were conducted in accordance with the Sewage Handling and
Disposal Regulatious(12 VACS-610),the Private Well Regulations(12 VACS-630)and al]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 licensw•e to
perform the work contained herein.
� The work attached to this cover pa�e has been conducted under an exemption to the practice of enQineerinQ,specifically the
e�emption in Code of Virginia Section 54.1-402.11
I reconuneud that a(select one): construction peimit❑ certification letter� subdivision approval�
be(select one)issued� denied Q.
OSE/PE SiD ature `:�'`�,(,��,, 4,d� ';�7�.
f Date �—`(-Y 3
�c���. 2 �� 5
Soil Profile
Lot A
A Division of Tax Map 56-100
Albemarle County
Hole Depth Horizon Material Description Soil Texture
(in.) Group
1 0-4 A Dark gray(lOYR 4/1) loam 2
4-34 Bt Red (2.SYR 5/6) silty clay loam ;
34-84 C Brownish yellow(lOYR 6/8) sandy loam 2
2 0-6 A Dark gray(lOYR 4/1) loam 2
6-29 Bt Red (2.SYR 5/8) silty clay loam and yellowish red 3
(SYR 5/8) loam
29-45 C Olive(SY 5/4) sandy loam with rock fragments below 36" 2
45- Cr 50%+rock fragments
3 0-2 A Dark gray(lOYR 4/1) loain 2
2-15 BE Brown (lOYR 5/3) sandy loam 2
15-45 Bt Red (2.SYR 5/8) silty clay loam 3
45-66 C1 Brownish yellow(lOYR 6/8) sandy loam 2
66-84 C2 Dark yellowish brown(lOYR 4/6)loam with rock 2
fragments
4 0-2 A Dark gray(lOYR 4/1) loam 2
2-19 Bt Yellowish red (SYR 5/8) clay loam 3
19-48 C Dark yellowish brown(lOYR 4/6) sandy loam with rock 2
fragments
48- Cr 50%+rock fragments
5 0-8 A Dark gray(lOYR 4/1) loam 2
8-25 BC Strong brown(7.SYR 5/8) clay loam and brownish yellow 3
(lOYR 6/8) sandy loam
25-36 Bt Red (2.SYR 5/8) silty clay loam 3
36-48 C Dark yellowish brown(lOYR 4/6) sandy loam with rock 2
fragments
48- Cr 50%+rock fragments
6 0-6 A Dark gray(lOYR 4/1) loam 2
6-30 Bt Red (2.SYR 5/8) silty clay loam 3
30-48 BC Red (2.SYR 5/8) silty clay loam and brownish yellow 3
(lOYR 6/8) loam
48-84 C Brownish yellow(lOYR 6/8) sandy loam 2
,.�.._ _.___...__. ._
1�u5� 3 �� �
Soil Profile
Lot A
A Division of Tax Map 56-100
Albemarle Couniy
Hole Depth Horizon Material Description Soil Texture
��n,� Group
7 0-7 A Dark gray(lOYR 4/1) loam 2
7-13 BE Brown(7.SYR 5/4) clay loam 3
13-34 Bt Red (2.SYR 5/8) silty clay loam 3
34-42 C Dark yellowish brown (lOYR 4/6) sandy loam with rock 2
fragments
42- Cr 50%+rock fragments
Page `l of �
Appendix 2
Soil Summary Report
GENERAL. INFORMATION
Date 2�2��3 Submitted to Albemarie County Health Department
Applicant Daley Craig Telephone Number
Address �15 Half Mile Branch Road Crozet, Virginia 22932
Owner same Address same
Location 4906 Rockfish Gap Turnpike
Tax Map 56-100 Subdivision
Block/Section Lot Lot A
SOIL INFORMATION SUMMARY - �'� � � K �
1. Position in landscape satisfactory? (X Yes (— No
Describe side slope
2. Slope 15 %
3. Depth to rock or impervious strata: Max. 84��+ Min. 42�� None
4. Depth to seasonal water table (gray mottling or gray color) r No r Yes inches
5. Free water present �X No � Yes ra�ge in inches
Soil percolation rate estimated �x Yes Texture group { II fll IV
r No Estimated rate 75 min/inch
7. Permeability test perFormed 1— Yes
(X No
If yes, note type of test performed and attach
r Site Approved: Drainfield to be placed at 24�� depth at site designated on permit.
(— Site Disapproved:
Reasons for rejection:
1- r Position in landscape subject to flooding or periodic saturation.
2e r Insufficient depth of suitable soil over hard rock.
3. � Insufficient depth of suitable soil to seansonal water table.
4. 1— Rates of absorption too slow.
5. r Insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6. I� Proposed system too close to well.
7� r Other Specify
(attach additional pages if necessary)
��u� 5����
Abbreviated Design Form
This form is for use with�-avity,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 ❑ primary and reseive area, �'only the primary area, ❑ only the reserve
area(check one)for_Lot A—A Division of TM 56-100(Property ID).
Design Basis
Total length of available area: 100' Total width of available area: 75'
Estimated Perc.Rate: 75 at 24" in. (depth) Number of bedrooms(or GPD): 4
i z
Conveyance Method : Gravi Distribution method (specify�: Gravit�`
3c
Dispersal system basis Table 5:4 LGMI required? No (Yes/No)
Effluent guality required:_Primac-� (Primary, Secondary,Advanced Secondary)
Square feet per bedroom: 596 Total trench bottom area required: 2400
Area Calculations
Number of trenches 8 Length of trenches: 100�
Width of trenches: 3� Center to center spacing: 10'
Resezve required? Yes Percent reserve area required: 100
Total width of absorption area required 73' Total trench bottom area provided: 2400
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 nnare area
available,especially up and down the slope,than is required.
Page of
AOSE Fomi E Revised July 18,2007
Page � of �
Appendix 2
Soil Summary Report
GENERAL WFORMATION
Date 2�2��3 Submitted to Albemarle County Health Department
Applicant Daley Craig Telephone Number
Address 715 Half Mile Branch Road Crozet, Virginia 22932
Owner same Address same
Location `�906 Rockfish Gap Turnpike
Tax Map 56-100 Subdivision
Block/Section Lot Lot A
SOIL INFORMATION SUMMARY- f�,cse,�,.e_ � i� T'
1. Position in landscape satisfactory? r Yes � No
Describe side slope
2. Slope 15 %
3. Depth to rock or impervious strata: Max. 84��+ Min. 42�� None
4. Depth to seasonal water table (gray mottling or gray color) r No r Yes inches
5. Free water present lX No 1� Yes range in inches
Soi{ percolation rate estimated (X Yes Yexture group I ll IIl IV
r No Estimated rate 75 min/inch
7. Permeability test performed (� Yes
r No
If yes, note type of test performed and attach
(X Site Approved: Drainfield to be placed at 24�� depth at site designated on permit.
� Site Disapproved:
Reasons for rejection:
1. � Position in landscape subject to flooding or periodic saturation.
2. r Insufficient depth of suitable soil over hard rock.
3. � lnsufficient depth of suitable soil to seansonal water table.
4. � Rates of absorption too slow.
5• � Insuffcient area of acceptable soil for required drainfield, and/or Reverse Area.
6. � Proposed system too close to well.
7. � Other Specify
(attach additional pages if necessary)
Qu� 7 ���
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 ❑ primary and reserve area, ❑ only the primary area, �nly the reserve
area(check one)for_Lot A—A Division of TM 56-100 (Property ID).
Design Basis
Total length of available area: 100' +50' Total width of available area: 70'
Estimated Perc. Rate:_75 at 24" in. (depth) Number of bedrooms (or GPD): 4
i z
Conveyance Method : _Gravi Distribution method (specify): Gravitv
3c
Dispersal system basis GN1P 118A LGMI required? No_(Yes/No)
Effluent quality required:_Secondary (Primary, Secondary,Advanced Secoi�dary)
Square feet per bedroom: 255 Total trench bottom area required: 1020
Area Calculations
Number of trenches�3 100's+2 50's) Length of trenches: 100' +50'
Width of trenches: 3' Center to center spacing: 10'
Reserve required? This is reserve Percent reserve area required: 100
Total width of absorption area required 43_ '___ Total trench bottom area provided: 1200
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 inore area
available, especially up and down the slope,than is required.
Page of
AOSE Form E Revised July 18,2007
Page � of 9
OSE/PE Report for:
Construction Permit� Certification Letter� Subdivision Approva]�
Property Location:
911 Address: City: Crozet
Lot B Section Subdivision
GPIN or Tax Map# 56-100 Health Dept ID#
Latitude Longitude
Applicant or Client Mailing Address:
Name: S. Daley Craig
Street: 715 Haif Mile Branch Road
�;�,:Crozet State Virginia Zip Code 22932
Prepared by:
OSE Name Steve Gooch License# 1940001284
Address 1821 Broadway Street
�;�, Charlottesville State Virginia Zip Code 229�2
PE Name: License#
Address
City State Zip Code
Date of Report 2�4(13 Date of Revision#1
OSE/PE Job# Date of Revision#2
Contents/Index of tl�is report(e.g.,Site Evaluation Summary,Soil Profile Descriptions,Site Sketch,Abbreviated Design,etc.)
OSE Cover Page Abbreviated Design Forms
Soil Profile Sheets Survey Plat
Soil Information Summary Sheets
Certification Statement
I hereby certify that tl�e evaluations and/or designs contained herein were conducted in accordance with the Sewage Handlnlg and
Disposal Regulations(12 VAC5-610),the Piivate Well Regulations(12 VACS-630)and all oflier applicable laws,i-egulations and
policies i�nplemented by the Virginia Deparhnent of Health. I further certify that I cun-ently possess any professional license required
by the laws and regulations of tl�e Commonwealti�that have been duly issued by the applicable agency charged with licensure to
perform the work contained herein.
� The work attached to this cover pa�e has been conducted under an exemption to the practice of en�ineerinQ,specifically the
exemption in Code of Virginia Section 54.1-402.11
I recommend that a(select one): construction permit❑ certification letter� subdivision approval❑✓
be(select one)issuedQ denied Q.
OSE/PE Sio ature �'��,�— ��-'���i'v"�-- Date �.'`�7�j
P�y� Z ��
Soil Profile
Primary Drain Field
Lot B
A Division of Tax Map 56-100
Albemarle County
Hole Depth Horizon Material Description Soil Texture
(in.) Group
10 0-4 A Dark gray(lOYR 4/1) loam 2
4-12 BE Brown(7.SYR 5/4) sandy loam 2
12-24 Bt Red (2.SYR S/8) clay loam 3
24-84 C Yellowish brown(lOYR 5/8) sandy loam 2
11 0-4 A Brown(7.SYR 5/4) sandy loam 2
4-45 Bt Yellowish brown (lOYR 5/6) clay loam 3
45-84 C Dark yellowish brown (lOYR 4/6) loam 2
12 0-5 A Brown(7.SYR 5/4) sandy loam 2
5-30 Bt Yellowish red (SYR 5/8) clay loam 3
30-84 C Dark yellowish brown(lOYR 4/6) loam 2
13 0-8 A Dark gray(lOYR 4/1) loam 2
8-30 Bt Red (2.SYR 5/8) clay loam 3
30-84 C Yellowish brown(lOYR 5/8) sandy loam 2
14 0-12 A Brown(7.SYR 4/2) sandy loam 2
12-38 Bt Brown (7,SYR 5/4) clay loain 3
38-60 C1 Strong brown(7.SYR 5/8) loam 2
60-84 C2 Yellowish brown(l 0YR Sl8) sandy loam 2
Page � of Cl
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 2�2l13 Submitted to Albemarle County Health Department
Applicant flafey Craig Telephone Number
Address �15 Half Mile Branch Road Crozet, Virginia 22932
Owner same Address same
Location 4906 Rockfish Gap Turnpike
Tax Map 56-1 DO Subdivision
Block/Section Lot Lot B
SOIL INFORMATION SUMMARY _ r� a ^
1. Position in landscape satisfactory? � Yes r No
Describe side slope
2. Slope �5 %
3. Depth to rock or impervious strata: Max. Min. None X
4. Depth to seasonal water table (gray mottling or gray color) fiX No 1— Yes inches
- Free water present IX No r Yes range in inches
�. Soif percolation rate estimated �X Yes Texture group I Q III IV
r No Estimated rate �5 min/inch
7. Permeability test perFormed f Yes
� No
If yes, note type of test performed and attach
1X Site Approved: Drainfield to be placed at 60" depth at site designated on permit.
� Site Disapproved:
Reasons for rejection:
1. I— Position in landscape subject to flooding or periodic saturation.
2. r Insufficient depth of suitable soil over hard rock.
3. f lnsufficient depth of suitable soil to seansonal water table.
4. I— Rates of absorption too siow.
5. I� Insufficient area of acceptable soil for required drainfield, and/or Reverse Area.
6� � Proposed system too close to well.
1� Other Speciiy
(attach additional pages if necessary)
�45�- Y��= �
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 � primary and reserve area, �nly the primary area, ❑only the reserve
area(check one)for_Lot B—A Division of TM 56-100 (Property ID).
Design Basis
Tota] length of available area: 55' Total width of available area: 65'
Estimated Perc.Rate: 45 at 60'____ '�in. (depth) Number of bedrooms(or GPD): 4
i z
Conveyance Method : Gravi Distribution method (specify): Gravit�
3c
Dispersal system basis GMP 135 LGMI required? No (Yes/No)
Effluent quality required: Prima (Primary, Secondary,Advanced Secondary)
Square feet per bedroom: 344 Total trench bottom area required: 1032
Area Calculations
Number of trenches 7 Length of trenches: 55'
Width of trenches: 3� Center to center spacing: 9'
Reserve required? Yes Percent reserve area required:_100
Total width of absorption area required 57' Total trench bottom area provided: 1 l55
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. W11en
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
��4 s� �'���
5oi1 Profile
Reserve Drain Field
Lot B
A Division of Tax Map 56-100
Albemaxle County
Hole Depth Horizon Material Description Soil Texture
(in.) Group
1 0-4 A Brown(7.SYR 4/3) loam 2
4-12 Bt Strong brown(7.SYR 5/6) clay loam 3
12-18 C Reddish yellow(7.SYR 6/6) sandy loam with rock 2
fragments
18- Cr 50%+rock fragments
2 0-4 A Brown (7.SYR 4/3) loam 2
4-30 Bt Strong brown (7.SYR 5/6) clay loam 3
30-45 C Brownish yellow(lOYR 6/6) loam with rock fragments 2
45- Cr 50%+rock fragments
3 0-3 A Brown(7.SYR 4/3) loam 2
3-17 Bt Strong brown(7.SYR 5/6) clay loam 3
17-29 C Brownish yellow(lOYR 6/6) loam with rock fragments 2
29- Cr 50%+rock fragments
4 0-3 A Brown(7.SYR 4/3) loam 2
3-16 BC Red (2.SYR.5/$) clay loam with rock fragments 3
16-23 C Dark yellowish brown(lOYR 4/6) sandy loam with rock 2
fraginents
23- Cr 50%+rock fragments
5 0-6 A Brown (7.SYR 5/4) sandy loam 2
6-23 Bt Yellowish brown(lOYR 5/6) clay loam 3
23-31 C Dark yellowish brown (lOYR 4/6) sandy loam with rock 2
fragments
31- Cr 50%+rock fragments
6 0-3 A Brown(7.SYR 4/3) loam 2
3-12 Bt Strong brown(7.SYR 5/6) clay loam 3
12-18 C Brownish yellow(lOYR 6/6) sandy loam with rock 2
fragments
18- Cr 50%+rock fragments
7 0-5 A Brown(7.SYR 5/4) sandy loam 2
5-16 Bt Yellowish brown(lOYR 5/6) clay loam 3
16-35 BC Reddish yellow(7.SYR 6/6} clay loam with rock fragments 3
35- Cr 50%+rock fragments
��� � �� �
Soil Profile
Reserve Drain Field
Lot B
A Division of Tax Map 56-100
Albemarle County
Hole Depth Horizon Material Description Soil Texture
(in.) Group
8 0-4 A Brown(7.SYR 5{4) sandy loam 2
4-10 Bt Yellowish brown(lOYR 5/6) clay loam 3
10-24 C1 Light reddish brown(SYR.6/4) sandy loam 2
24-48+ C2 Dark yellowish brown(lOYR 4I6) sandy loam 2
9 0-4 A Brown(7.SYR 5/4) sandy loam 2
4-27 C Dark yellowish brown(lOYR 4/6) sandy loam with rock 2
fragments
27- Cr 50%+rock fragments
Page 7 of�_
Appendix 2
Soil Summary Report
GENERAL INFORMATION
Date 2/2/13 Submitted to Albemarle County Health Department
Applicant pa{ey Craig Telephone Number
Address �15 Half Mile Branch Road Crozet,Virginia 22932
Owner same Address same
Location 4906 Rockfish Gap Turnpike
Tax Map 56-100 Subdivision
Block/Section Lot Lot B
SOIL INFORMATION SUMMARY- /���,���,,,� �� 7
1. Position in landscape satisfactory? �X Yes (— No
Describe side sfope
2. Slope 23 %
3. Depth to rock or impervious strata: Max. 48��} Min. 18�� None
4. Depth to seasonal water table (gray mottling or gray color) iX No � Yes inches
� Free water present fx No � Yes range in inches
�. Soil percolation rate estimated �x Yes Texture group I ll II IV
� No Estimated rate 75 min/inch
7. Permeability test performed r Yes
r No
If yes, note type of test performed and attach
1X Site Approved: Drainfield to be placed at 6�� depth at site designated on permit.
r 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 tabie.
4. (� 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.
' IJ Other Specify
(attach additional pages if necessary)
1��5�- � vF�
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� primary and reserve area, ❑ only the primary area, only the reserve
area(check one)for_Lot B—A Division of TM 56-100(Property ID).
Design Basis
Total length of available area: 100' Total width of available area: 95'
Estimated Perc.Rate: 75 at 6'�in. (depth) Number of bedrooms(or GPD): 4
i z
Conveyance Method : Pum Distribution method (specify): Pum�_
3c
Dispersal system basis Table 5.4 LPD� LGMI required? No (Yes/No)
Effluent quality required:,Secondary (Primary, Secondary,Advanced Secondary)
Square feet per bedroom: 375 Total trench bottom area required:_5985*
* includes 33% increase for slope
Area Calculations
Number of trenches 30 Length of trenches: 100�
Width of trenches: 1�' Center to center spacing: 2'
Reserve required? This is reserve Percent reserve area required:_100
Total width of absorption area required 60' Total trench bottom area provided: 6000
The required width is calculated by multiplying the center-to-center spacing by one less than the nuinber
of trendies and adding 1 trench width plus any required reserve area. If the topography is not uniform
across the length of the site the trencl�es 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 liave more area
available,especially up and down the slope,than is required.
Page of
AOSE Form E Revised July 18,2007