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HomeMy WebLinkAboutSUB202000022 Assessment - Environmental 2020-01-28 Soils Study for Reserve Drain Field Site South Plains Presbyterian Church A Boundary Line Adjustment — TM 80-116 & 80-116A Albemarle County Prepared for: South Plains Presbyterian Church of Keswick, Virgina,LLC P.O. Box 277 Keswick, VA 22947 Prepared by: Steve Gooch Consulting Geologist, Inc. 703 Oliver Creek Road Troy, Virginia 22974 January 28, 2020 Page 1 of 5 OSE/PE Report for: Construction Permit.1: Certification Letter L Subdivision Approval a Property Location: 911 Address: 4075 Louisa Road City: Lot Section Subdivision GPIN or Tax Map# 80-116 Health Dept ID# Latitude Longitude Applicant or Client Mailing Address: Name: South Plains Presbyterian Church of Keswick, Virginia Inc. Street: P.O. Box 277 City: Keswick State VA Zip Code 22947 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 1/28/20 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 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): nstruction permit': certification letter subdivision approval': be(select one)issued': denied Li U. OSE/PE Signature 42��-Q,(1-� "Ira% Date 1 1^Zyr I Z0 Soil Profile Reserve Drain Field South Plains Presbyterian Church Tax Map 80-116 Albemarle County Hole Depth Horizon Material Description Soil Texture (in.) Group 1 0-4 A Brown(7.5YR 5/4) clay loam, friable 3 4-34 Bt Reddish brown(2.5YR 5/4) clay loam, friable, 25% 3 weathered schist fragments 34- Cr 50%+weathered schist fragments 2 0-2 A^ Brown(7.5YR 5/4)clay loam, friable 3 2-6 Bt^ Red(1 OR 5/8) silty clay loam, firm 3 6-10 Eb Yellow(10YR 7/8) clay loam, friable 3 10-34 Btb Red (IOR 5/8) silty clay loam, firm 3 34-44 CBtb Brownish yellow(10YR 6/8) silt loam, friable, red 3 (10R 5/8) silty clay loam, 25-35%weathered schist fragments 44- Cr 50%+weathered schist fragments 3 0-3 A Brown(7.5YR 5/4)clay loam, friable 3 3-20 Bt Reddish brown (2.5YR 5/4)clay loam, friable, 10% 3 weathered schist fragments 20-39 Bt2 Red (10R 5/8) silty clay loam, firm 3 39-60 C Yellow(10YR 7/8) silt loam, 10-20%weathered schist 3 fragments 4 0-3 A Brown(7.5YR 5/4) clay loam, friable 3 3-20 Bt Yellowish red(5YR 5/8) silty clay loam, firm 3 20-34 C Reddish yellow(7.5YR 6/8) silt loam,35-40%weathered 3 schist fragments 34- Cr 50%+weathered schist fragments 5 0-3 A Brown(7.5YR 5/4)clay loam, friable 3 3-10 E Yellow(10YR 7/8)clay loam, friable 3 10-37 Bt Red(10R 5/8) silty clay loam, firm 3 37-48 CBt Yellowish red(5YR 5/8)clay loam, friable 3 48-60 C Reddish yellow(7.5YR 6/8) loam, 10%weathered schist 3 fragments Page 3 of L.C. Appendix 2 Soil Summary Report GENERAL INFORMATION Date 1/7/20 _ Submitted to Albemarle County Health Department Applicant South Plains Presbyterian Church Telephone Number (434)296-6772 Address P.O. Box 277 Keswick, VA 22947 Owner same Address same Location 4075 Louisa Road Tax Map 80-116 _ Subdivision Block/Section Lot SOIL INFORMATION SUMMARY 1. Position in landscape satisfactory? IR Yes P No Describe shoulder 2. Slope 8 % 3. Depth to rock or impervious strata: Max._ 60"+ Min. _ 34" None 4. Depth to seasonal water table (gray mottling or gray color) Ix No r Yes inches Free water present (X No [ Yes range in inches 6. Soil percolation rate estimated Ix Yes Texture group I II 4 IV r No Estimated rate 90 min/inch 7. Permeability test performed r Yes fX No If yes, note type of test performed and attach Ix Site Approved: Drainfield to be placed at 24" depth at site designated on permit. n Site Disapproved: Reasons for rejection: 1. r Position in landscape subject to flooding or periodic saturation. 2. r Insufficient depth of suitable soil over hard rock. 3. f Insufficient depth of suitable soil to seansonal water table. 4. P Rates of absorption too slow. 5. r Insufficient area of acceptable soil for required drainfield, and/or Reverse Area. 6. E Proposed system too close to well. P Other Specify (attach additional pages if necessary) 12c1 dE- 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, D'only the reserve area(check one)for Tax Map 80-116 Design Basis Total length of available area: 85' Total width of available area: 95' Estimated Perc. Rate: 90 at 24" in.(depth) Gallons per day: 800 2 Conveyance Method : Pump Distribution method (specify): Pump 3c Dispersal system basis AOSS regs LGMI required? No (Yes/No) Effluent quality required: Advanced Secondary(TL 3) (Primary, Secondary,Advanced Secondary) Square feet per 100 gallons: 152 _ Total trench bottom area required: 1216 LPD/trench Linear loading rate—0.66 gpd/sq.ft. Area Calculations Number of trenches 7 Length of trenches: 60' Width of trenches: 3' Center to center spacing: 9' Reserve required? This is reserve Percent reserve area required: 200 Total width of absorption area required 57' Total trench bottom area provided: 1260 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. Estimated water usage of 810 gpd per Atwood Architects inc. Site Plan dated 5/24/09 Page of AOSE Form E Revised July 18,2007 t 3• 1...., .,,,.....••""*.. .it,45.4.::11.7*••'"-- ..........0'''. •• 81 __- l. n, .e, .,....C..e, C,,i W„ .R 'A�P�1,.? ::.-": ......•••' •.••\.... .1.BEN p „I 1 ro/rVr,3.E..m,i..se,'.L? V0 .• ...•••••'';0 ACCESS '"-;' t CIeI".‘ ..r.I.-.,..-i O5._ r1 ;.#--'', i:" ...•••••' -1 , EASEMENT '; r O.B. i944- 1 (ll i , s ,, , 1 i • 1 „J•" j PROPOSED RESERVE; 1 _ I ..- ; i ; / DRAIN FIELD 1 l ~ EASEMENT TO � iftfrie CENTRAL1,--'-- 1���,��,,� TEL.EPHONE / II,! _ T.M.60-!16 ' COMPANY OF C), VIRGINIA SOUTHPLAINS `� ~<v ' (D.B. 1944-670, - SBYTERIAN CHURCH :'�� c' 'ti~ 677 PLAT) EXISTING OFK SNICK. VIRGINIA, INC. ub 01,... 'ti4 ti 0. 3669-619 1524 PLAT CHURCH SIDUE• 4.Ili ACRES V I •1 41/4,4) ''r4 / Y ONNT KITH N4g39'a01'E • i11 cn �,.' IRON 41./15' TANK FOUND STING DRAIN FIELD PRESSURE IRON (200s ••):C• (APPROX.) • CONCRETE._,,, 6.3' FOUND N65•21'54-E 195.51 .g PAD WITH iy5- - BRICK r iB,35' ' tS) PLANTER T.N,8O-116A ti (0.70 ACRE) SOUTH PLAINS PRESBYTERIAN CHURCH I SET WELL OF KESWICK, VIRGINIA INC. I D.8.3669-519. 524 PLAT 91 7, 4' W c7 cm AI .,r • CEMETERY "il /9 cv Or O REVISED SA ©i w = T.M.SO `► 0.94 ACRES TOTAL `� 4• ----- l w 1 v�f` g9.63 FIRON Q 13.72' 1 IRON WOW�` 6q"W SET Scale 1 60' - 55 .47.2 Soil Profile Hole IRON Church, Well and Drain Field Sites FOUND JOHN M.BARE South Plains Presbyterian Church 4075 Louisa Road Albemarle Coun Vir Steve Gooch Consulting Geologist FOR 703 Oliver Creek Road REVIEW Troy, Virginia 22974 Typical Weekly Activity South Plains Presbyterian Church Tax Map 80-116 Albemarle County Attendance on Sunday morning worship—60-70 Choir rehersal—once a week Secretary—3 days/week Minister Water usage is less than noted on site plan dated 5/24/09 by Atwood Architects, Inc. for new worship hall 7 g \Air Iiit iaF2ii+Mi t! .wweetraisv,Nu oawr G•Q y t \'.►, • !0• Ngm,+w Maws ra w ream 0 aAO 'ar" w Y •'Q 't i \i 1�'�! • •Q• ?� vw w • •• I� `. \t i \ ` �'••...,` o•, a? 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