HomeMy WebLinkAboutSUB201800182 Study Family Division Plat 2013-02-02 John Y.Gooch,P.M OCh Steve Gooch,C.P.GJAA.S.B.
Matthew P Gooch,P.E. Phone(434)
mp�gcom a►"� -s'tin't, ,. Fax(434)293-5131
1821 Broadway Street CQarlottesvifle,Virginia 22902 www.gooch-eng.com
February 2,2013
Rob C1vtteito •
1000 Cordova Place
Sam Fe,New Mexico 8750S
Re: Feasibility Soil Study for Septic System
Tay Map 85-24B
Albemarle County,Virginia
Dear Mr.Civitello:
As requested we have permed a soils investigation on the above-referenced
property. The purpose of the study was to done if there was sufficlent area of
suitable soils on the lot to support the primary and 100%reserve drain field sites for a
3 bedroom house that is planned fir this lot. We gilled eleven(7)hand auger test
holes to determine soil profiles on the lot. A log of each teat hole is shown on the
enclosed individual soil profile sheet. Informae pertinent to the design of the drain
field is on the soil information summary sheet and an abbreviated design form. The
approximate location ofthe proposed drain fields is shown alike enclosed Awe
County GIS map. The soil profile holes have been flagged with pink wire flags and
orange arroyo's ribbon.
Based on our inves igadon it ie our opinion that the softs in the arms hwestigned are
suitable for installation of a conventlonaI septic system (primary treatment of the
septic tank under the currant Health Department regulations. The area
investigated will support the primary and 100% reserve drain field sites for the 3
bedroom house that is planned.
If requested Gooch Engineering and Testes can prepare an OSE septic permit
application once you have purchased the lot and are ready to build.
If you have any questions,please let us know.
Sincerely, •
Gooch Engineering and Testing,Inc.
4410--
Steve Gooch
Batt.
•
Soil Profile
?M
85-24B • + •
Albemarle County
Hole 'Depth Horizon Material mon Soil Texture
• Ca) • Group •
1 0-3 A Dark gray(10YR 4/1)loam 2 •
•
3-12 Bt Reddish yellow(7.5YR 6/6)clay loam 3 • •
12-84 C Yellow(10YR 7/8)loam 2
• 2 0.4 A Dark gray(10YR 4/1)loam 2 •
4-24 Bt Red(IOR 518)silty clay loam 3 •
24-57 Ba Light red(2.5YR 6/8)clay loam 3
•
57-84 CB Yellow(10YR 7/8)k with seams of llgltt red 2 •
(10R 6/8)clay loam
•
3 04 A Dark gray(10YR 4/1)loam 2
4-14 BC Yellowiaft red(SYR 5N)clay low with deeply weathered 3
schist fragments
14-84 C Yellow(14YR 7/8)loam 2
4 0-5 A Brom(7.5YR4/2)clay loam 3 .
5-28 Bt Strong brown(7.SYR 5/8)clay loam 3
28-40 Cl Yellowish red(5YR cla►4oeas•• 3 •
40-84 C2 Yellow(2.SY 7/6)loam 2
5 0-4 A Dark gray(10YR 411)loam 2
4-18 Si Red(IOR 5/8)silty day loran •
3
18-48 CD Yellow(1OYR7/8)•loam and'light`red(2:5TRt6/8)"olay 2
loam
•
6 0-6 A Dark gray(10YR 411)loam 2 •
6-48 Bt Red(2.5YR 5/8)clay loam 3
.48-70 Cl Yeiio Ash red(5YR 5/8)loam 2 •
70-84 C2 Yellow(0OYR 7/8)loam 2
7 0-5 A Dark gray(10YR 411)loam • 2 .
5-36 Bt Red(10R 518)silty day loam 3 .
• 36-84 C Yellow(10YR 7/8)loam 2
•
•
•
Abbreviated Design XtorJ
This thus is for use with gravity.pump to gravity,enhanced flow,and low pressure distribution(LPD)sewage system
designs and when applying*bra Cato*Unarm subdhAsten approval
•
This abbreviated design coven/the i7primary andres wareaa,041ytheprimaryar a,t3onlyhereserve '
area(check one)for 1141.85-248(Property ID).
Dodge Basis
Total length ofavailable area: _At__ Tota!width of available area: 126'
Estimated Pero.Rate:_IQ_at, 54" in.(depth) Number of bedrooms(or OPD):: 3
Conveyance Method: Gmtv Disfribalion methods(speci('y); Gravity•
• •
Dispersal system basis Table 5.4 LOM1 required? No (Ye/No)
Effluent quality required: Primary (Primary,Secondary,Advanced Secondary)
Square feet per bedroom: 376 Total trench bottom area required: '1128 ,
•
Area Calculations
Nmnleroftrenches 8 Length oftrenohes 50'
Width ofbenobes: 3' Center tct eienterspacing: 9'
Resemerequired7 Yes Pero:atm:eveamarnquh 10
_ Total width of absorption area nsquirodg7 Total bench bottom arae provided: 1200 _
•
The required width Is caloulated by multlp ging the;coa lo-oeater speoiag by one less than the number
of trenches and adding 1 trench-width plus any required reserve area. If the topography is not uniform
soros s the length ofthe site the trenches-will need to.flare apart on one•ond to.imaintala.contour.•Wen
this cows it is necessary to use a oearteMo.oeatar spaciagtha t accounts for the flair or the installer will
not be able to fit the system within the approved area. It is pertbotly,acoeprable to have more area
available,espacially up and down the slope,than is required.
•
•
• '
• Pa of
•
AonEPtian aesarrthly 15,2007
Soil Infonnatlon Summary •
1M 85-24B
abemadeCounty
I) Position on slope information—Position satisfactory,side slope
2) Slope 14%
3) Depth to rochlimpervious strata—84"+
4) Depth to seasonal water table—84"+
5) Free vent—No
6) Soil percolation rate estimated—50 @ 54"
•
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