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Home My WebLink AboutSUB201600110 Study 2016-07-01 Soils Study for Reserve Drain Field Site New Tax Map Parcel 92-43A A Boundary Line Adjustment with Tax Map 92-43 Albemarle County SUB 2016-00110 prepared for: Robert Mosley 1654 Thomas Jefferson Parkway Charlottesville, VA 22902 Prepared by: Steve Gooch Consulting Geologist,Inc. 703 Oliver Creek Road Troy, Virginia 22974 June 18, 2016 Page 1 of 5 OSE/PE Report for: Construction Permit Certification Letter J] Subdivision Approval 1 Property Location: 911 Address: 1644 Thomas Jefferson Parkway City: Lot Parcel A Section Subdivision GPIN or Tax Map# 92-43A Health Dept ID# Latitude Longitude Applicant or Client Mailing Address: Name: Robert Mosley street: 1654 Thomas Jefferson Parkway City:Charlottesville State VA Zip Code 22902 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 6/18/16 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 Sheet 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): c nstruction permit❑ certification letter subdivision approval be(select one)issued denied 11. OSE/PE Signature qm- e- Date 6/4/(6 Pc? Zc — Soil Profile Reserve Drain Field Site Parcel A Tax Map 92-43A Albemarle County Hole Depth Horizon Material Description Soil Texture (in.) Group 1 0-6 A Brown(7.5YR 5/4) clay loam,friable 3 6-32 BC Red(2.5YR 4/6) silty clay loam, firm, 10-40% schist 3 fragments 32- Cr 2 0-6 A Brown(7.5YR 5/4) clay loam, friable 3 6-30 BC Red(2.5YR 4/6) silty clay loam, firm, 10-40% schist 3 fragments 30- Cr 3 0-4 A Brown(7.5YR 5/4) clay loam, friable 3 4-28 BC Light brown(7.5YR 6/4) clay loam, friable, 25% schist 3 fragments 28- Cr 4 0-5 A Brown(7.5YR 5/4) clay loam, friable 3 5-22 BC Light brown (7.5YR 6/4) clay loam, friable, 25% schist 3 fragments 22- Cr 5 0-9 A Brown(7.5YR 5/4) clay loam, friable 3 9-20 Bt Light brown(7.5YR 6/4)clay loam, friable 3 20-34 C Reddish brown (5yR 5/4) sandy loam, friable, 25-40% 2 schist fragments 33- Cr 6 0-5 A Brown(7.5YR 5/4) clay loam, friable 3 5-22 BC Light brown (7.5YR 6/4) clay loam, friable, 25% schist 3 fragments 22- Cr Page of Appendix 2 Soil Summary Report GENERAL INFORMATION Date 6118/16 Submitted to Albemarle County Health Department Applicant Robert Mosley Telephone Number (434)295-1009 Address 1654 Thomas Jefferson Parkway Charlottesville, VA 22902 Owner same Address same Location 1644 Thomas Jefferson Parkway Tax Map 92-43A Subdivision Block/Section Lot Parcel A SOIL INFORMATION SUMMARY - Irmo. 1. Position in landscape satisfactory? Yes '"` No Describe shoulder 2. Slope 10 % 3. Depth to rock or impervious strata: Max. 34" Min. 22" None 4. Depth to seasonal water table(gray mottling or gray color) IR No E Yes inches Free water present No r Yes range in inches Soil percolation rate estimated IX Yes Texture group I II ii IV E No Estimated rate 90 min/inch 7, Permeability test performed E Yes I No If yes, note type of test performed and attach IX Site Approved: Drainfield to be placed at 10" depth at site designated on permit. Site Disapproved: Reasons for rejection: 1. E Position in landscape subject to flooding or periodic saturation. 2. r Insufficient depth of suitable soil over hard rock. 3. E Insufficient depth of suitable soil to seansonal water table. 4. E Rates of absorption too slow. 5. E Insufficient area of acceptable soil for required drainfield, and/or Reverse Area. 6. I— Proposed system too close to well. 1 Other Specify (attach additional pages if necessary) Abbreviated Design Form This form is for use with gravity,pump to gravity,enhanced flow,and Iow 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, 0 only the reserve area(check one)for Parcel A—TM 92-43A(A Boundary Line Adjustment with 92-43) Design Basis Total length of available area: 125' Total width of available area: 45' Estimated Pere. Rate: 90 at 1O" in. (depth) Number of bedrooms(or GPD): 3 Conveyance Method1: Pump Distribution method (specify): Pump 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: 424 Total trench bottom area required: 4465* * includes 17% increase due to slope Area Calculations Number of trenches 38 Length of trenches:_60' 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 74' Total trench bottom area provided: 4560 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 requited. Page of AOSE Form E Revised July 18,2007 • • • to -F civ,4,... 44, C....41. * V V . 0 m I1 ,W1F +4 Q nI SC? 0 - �4 , C) .11(.4 +gyp fa VW- > fit► R `:10'0 [1 ALP tzoS„ALIO 44141* 95 0 - isk,1% 11),.:0403,- -. V., c1' +' `' ---p o i+ C7 illy Ii ' ,► '-p f . I 1 , _ Dria.i...4 t-4 tzi ,c151... P tzt ti (-)1-3. tzi L-41 ›.. rico =4: . ...3 = 1. .... m 1,.. i ..1 � a �' 0 . i z cz......,*$ 0 0,,,, (.0 0 . . t..14 0,, * 0 --. 1 y ® 1 (-1 ,,i,' a t't 0 t Ci) gE `"P_, 0 XI 0 11 z i z 4‘) E w I m 0 / Cata of I �'i' , til 'el 04 N8 ° 0 ,0 5 840 Ili „, ,,, ,•'' ,moo / . `i,„ cit '� �' o Cr. w',--.`' .6.. it „ ��.' "p / ,�' „iv,, ✓. ,A dC• o 1117. 8 N it o \10,.. ", • Z r) 0 cf "1