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HomeMy WebLinkAboutSUB201600195 Study 2016-10-17 APPROVED Soils Study for Drain Field Sites LotC A Division of Tax Map 131-83 Albemarle County Prepared for: Marvin and Debra Thornton 581 Blacks Lane Scottsville, VA 24590 Prepared by: Steve Gooch Consulting Geologist,Inc. 703 Oliver Creek Road Troy, Virginia 22974 October 17, 2016 Page 1 of 7 OSE/PE Report for: Construction Permit Ft Certification Letter —I Subdivision Approval ( Property Location: 911 Address: 581 Blacks Lane City: Scottsville Lot C Section Subdivision GPIN or Tax Map# 131-83 Health Dept ID# Latitude Longitude Applicant or Client Mailing Address: Name: Marvin and Debra Thornton Street: 581 Blacks Lane City:Scottsville State VA Zip Code 24590 Prepared by: OSE Name Steve Gooch License# 1940001284 Address 703 Oliver Creek Road City Troy State VA Zip Code 22974 PE Name: License# . ' Address City State Zip Code Date of Report 1 0/1 7/1 6 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 Form Soil Profile Sheet Survey Plat Soil Information Summary Sheets 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 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 permitO certification letter LI subdivision approval be(select one)issued denied U OSE/PE Signature '` -e �e.. l r',v'ti,, . Date /o((o// , ?cor_ Z Soil Profile Lot C A Division of TM 131-83 Albemarle County Hole Depth Horizon Material Description Sail Texture (in.) Group Primary Drain Field 3 0-2 A Dark gray(10YR 411) loam, friable 2 2-8 AE Light brownish gray(10YR 6/2) loam, friable 2 8-30 Bt Yellowish red(5YR 5/8) silty clay,firm 4 30-54 Bt2 Red(10R 5/8) silty clay loam, firm 3 54-60 Bt3 Light red (2.5YR 6/8) clay loam, friable 3 4 0-5 A Gray(10YR 5/1) loam, friable 2 5-12 BE Light reddish brown(5YR 6/4) clay loam, friable 3 12-44 Bt Red(10R 5/8) silty clay loam, firm 3 44-50 Bt2 Yellowish red(5YR 5/8) silty clay loam, firm 3 50-60 C Light red(2.5YR 6/8) clay loam, friable 3 5 0-6 A Dark gray(10YR 4/1) loam, friable 2 6-18 Bt Yellowish red (5yR 5/80 silty clay loam, firm 2 18-54 Bt2 Red(10R 5/8) silty clay loam, firm 3 54-60 C Pale red(10R 6/3) schist saprolite, crushes to loam 2 Reserve Drain Field 1 0-4 A Brown(7.5YR 5/4) clay loam, friable 3 4-46 Bt Brownish yellow(10YR 6/8) silty clay loam, firm 3 46-60 Bt2 Yellow(10YR 7/8) clay, firm w/red(10YR 5/8) and light 4 gray(10YR 6/1)mottles 2 0-6 A Dark gray(10YR 4/1) loam, friable 3 6-10 E Light yellowish brown(2.5Y 6/4) clay loam, friable 3 10-40 Bt Yellowish red(5YR 5/8) silty clay loam, firm 3 40-60 Bt2 Brownish yellow(10YR 6/8) clay, firm w/red (10YR 518) 4 and light gray(10YR 6/1)mottles 6 0-5 A Gray(10YR 5/1) loam, friable 2 5-18 Bt Light red(2.5YR 6/8) clay loam, friable 3 18-48 Bt Red (1OR 5/8) silty clay loam, firm 3 48-60 C Reddish brown(5YR 5/4) schist saprolite, crushes to silt 3 loam, white (10YR 8/1) feldspar(lithochromic) p 3 .R7 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, Von1y the primary area, 0 only the reserve area(check one)for Lot C-A Division of Tax Map 131-83 Design Basis Total length of available area: 80' Total width of available area: 60' Estimated Perc.Rate: 65 at42�in.(depth) Number of bedrooms(or GPD): 3 1 2 Conveyance Method : Gravi 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: 496 Total trench bottom area required: 1488 Area Calculations Number of trenches 7 Length of trenches:_75' Width of trenches: 3' Center to center spacing: 9' Reserve required?_Yes _ Percent reserve area required: 10 — Total width of absorption area required 57' trench bottom area provided: 1575 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 Page 6/ of 7 Appendix 2 Soil Summary Report GENERAL INFORMATION Date 10/15/16 Submitted to Albemarle County Health Department Applicant Marvin and Debra Thornton Telephone Number Address 581 Blacks Lane Scottsville, VA 24590 Owner same Address same Location 581 Blacks Lane Tax Map 131-83 Subdivision Block/Section Lot C SOIL INFORMATION SUMMARY — prvigir7 Dr 1. Position in landscape satisfactory? IR Yes r No Describe shoulder 2. Slope 9 % 3. Depth to rock or impervious strata: Max. Min. None 4. Depth to seasonal water table(gray mottling or gray color) No E Yes inches Free water present i No E Yes range in inches NrSoil percolation rate estimated Yes Texture group I II iij IV r No Estimated rate 65 min/inch 7. Permeability test performed E Yes rg No If yes, note type of test performed and attach I5 Site Approved: Drainfield to be placed at 42" depth at site designated on permit. E Site Disapproved: Reasons for rejection: 1. I— Position in landscape subject to flooding or periodic saturation. 2. E Insufficient depth of suitable soil over hard rock. 3. E Insufficient depth of suitable soil to seansonal water table. 4. 1 Rates of absorption too slow. 5. E Insufficient area of acceptable soil for required drainfield, and/or Reverse Area. 6. Proposed system too close to well. r Other Specify (attach additional pages if necessary) Page of 7 Appendix 2 Soil Summary Report GENERAL INFORMATION Date 10/15/16 Submitted to Albemarle County Health Department Applicant Marvin and Debra Thornton Telephone Number Address 581 Blacks Lane Scottsville, VA 24590 Owner same Address same Location 581 Blacks Lane Tax Map 131-83 Subdivision Block/Section Lot C SOIL INFORMATION SUMMARY , Hil/ 1. Position in landscape satisfactory? J5 Yes r- No Describe shoulder 2. Slope 9 % 3. Depth to rock or impervious strata: Max. Min. None 4. Depth to seasonal water table(gray mottling or gray color) No E Yes inches Pree water present ig No E Yes range in inches Soil percolation rate estimated 15 Yes Texture group I II III CD 1— No Estimated rate 110 min/inch 7. Permeability test performed 1— Yes rg No If yes, note type of test performed and attach 13Z Site Approved: Drainfield to be placed at 24" depth at site designated on permit. Site Disapproved: Reasons for rejection: 1. fl Position in landscape subject to flooding or periodic saturation. 2. E Insufficient depth of suitable soil over hard rock. 3. E Insufficient depth of suitable soil to seansonal water table. 4. r Rates of absorption too slow. 5. E Insufficient area of acceptable soil for required drainfield, and/or Reverse Area. 6. E Proposed system too close to well. fl Other Specify (attach additional pages if necessary) Pcor, 6 di--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 0 primary and reserve area, 0 only the primary area, Conly the reserve area(check one)for_Lot C -A Division of Tax Map 131-83 Design Basis Total length of available area: 100' Total width of available area: 40' Estimated Pere.Rate: 110 at 24" in.(depth) Number of bedrooms(or GPD):3 1 2 Conveyance Method : Gravi Distribution method (specify): Gravity 3c Dispersal system basis GMP 118A LGMI required? No (Yes/No) Effluent quality required: Primary (Primary, Secondary,Advanced Secondary) Square feet per bedroom: 375 Total trench bottom area required:_1125 Area Calculations Number of trenches 4 Length of trenches: 100' Width of trenches: 3'__� Center to center spacing: 9' Reserve required?_This is reserve _ Percent reserve area required: 100 Total width of absorption area required 30' 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 more area available,especially up and down the slope,than is required. Page of AOSE Form E Revised July 18,2007 T. f. 131-2'7A r.M.iii--27 LEONARD EDWARD JOHNSON LEONARD EDWARD JOHNSON S KARA H.JOHNSON 0.8.1789T521. 527 8 528 PLAT & KARA H.JOHNSON 0.8. 1789-521. 527 5 528 PLAT 40'EASEMENT AND RIGHT-OF-WAY i 00 LD8.405-412) N74*48`59"E •� 100.00` ,,T.M.131 -28 N72'30`34"E ft +'"°#4. KENNETH L.DAVIS REVOCABLE TRUST I 180.01' 0.8.2662-499 ► o---CE z . ; a 0.8.488-330 PLAT GRAVEL ...��. ;:_ ROAD ...R;:-%" --. '' rIE LINE PIPE ! .„ �„ .�-' �- '' �---IRON SET NO2.12`25"W FOUND AT 15.00 26.00' .--" ,4 ENCE �,' �� --:-Lf UTILITYVNE FORMER LOCATION C ,'C` BLACKS ,25END OF STATE MAINTENAN BY THIS FIRM ] .....„8...L .. .----� PIPE FOUND 0 * 0.1 1 h. !` We t* HAS BEEN REMO AT 25.98' rn RESERVED FOR LOT -e-----foropet QW Site STATE ROUTE 638 DOWN 3.00 ACRES (D.B.488-30 PLATY FENCE 0 rn .• ,' ' rt • . ..s co C FLAG .. ✓ T.M,131-28B V a s ,o- �.' Alt. �' , LEONARD EDWARD JOHNSON & KARA H.JOHNSON ;,,, ' P .914-0.8.9 45 34 P ©.8.91.4-2�t5 PLAT Reeenni 'y/ FENCE SLAG t l i COlic .. Scale 1"= 100' -- Soil Profile Hole 1 • ,. 4 House, Well and Drain Field Sites239.50 482.04' Lot C IRONONS86'54 29 �d SET A Division of Tax Map 131-83 ; x 1=EAtCE `- ----.. lbemarle Count Vit.!*ilia T.M. MARTINEZiii eve Gooch Consulting Geologist A0.0.LISE 0 3 703 Oliver Creek Road 0.8. 1277-637 OPLAT Troy, Virginia 22974 GL