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HomeMy WebLinkAboutSUB202200198 Review Comments Final Plat 2023-02-10Syd Shoaf CSenior Planner, Planning County of Albemarle sshoaf@albemarle.org _ Community Development Department - Department Telephone: (434) 296-5832 ext. 3902 Memorandum To: Gwen Lacy, gwen@raysurveying.com Date: February 10, 2023 Re: SUB202200198 Luke David Grubb & Courtney Michelle Grubb Two Lot Subdivision TMP 03400-00-00- 011A1 - Review Comments The County of Albemarle Planning Division will grant or recommend approval of the plat referenced above once the following comments have been addressed: [Each comment is preceded by the applicable reference, which is to the Subdivision/Zoning Ordinances unless otherwise specified.] 1. [14-308] The results of the Tier II Groundwater Assessment are attached. 2. [14-309] Soils evaluations. Please see the attached VDH approval letter. 3. [14-310] Health director approval is required for individual private wells and/or onsite sewage systems. Please see the attached VDH approval letter. 4. [14-316] VDOT approval of entrances onto State Route 640 is required prior to final plat approval. Please see the attached VDOT approval letter. Please contact Syd Shoaf in the Planning Division by using sshoaf@albemarle.org or 434-296-5832 ext.3902 for further information. Comments from Other Reviewers: Community Development Department Engineering - Matthew Wentland, mwentland@albemarle.org - No objection. Virginia Department of Transportation - John Winn, lohnl.winn@vdot.virginia.gov - Approved. Please see the attached VDOT letter. Virginia Department of Health - Travis Davis, travis.davis@vdh.vireinia.eov - Approved. Please see the attached VDH letter. WWW.ALBEMARLE.ORG 401 McIntire Road, North Wing, I Charlottesville, VA 22902-4579 TIER II GROUNDWATER ASSESSMENT AdftkCounty of Albemarle Department of Community Development £ 401 McIntire Road, North Wing Charlottesville, Virginia 22902 434-296-5832 1 www.albemarle.org/cdd DATE: 12/15/2022 APPLICATION: SUB 2022-00198 PROJECT NAME: LUKE DAVID GRUBB & COURTNEY MICHELLE GRUBB - FINAL TMP: 03400-00-00-011A1 The pending development on the property affected by the above referenced application number meets criteria outlined in Albemarle County Code Article IV - Groundwater Assessments to warrant a Tier 2 Groundwater Assessment. The following assessment uses the best available sources to outline the various groundwater conditions that could have an impact on this property. Water Quantity # of Wells within .5 Miles of Parcel: 75 Range of Depth of those wells: None to 440.0 feet Range of Yield of those wells: None to 110.0 gallons per minute (gpm) Median Yield for Wells in County: 6.0 gpm Water Quality # of Leaking Underground Storage Tanks (LUSTs) within 2000 Feet of Parcel: 0 # of Superfund sites within .5 miles: 0 # of Landfills within .5 miles: 0 Hydroaraohy % of Parcel that Contains Required Stream Buffers: 9.0% Watershed of Parcel (Y/N'): Preddy Creek (N) 100.0% Geology Bedrock: Lynchburg Group, Charlottesville Formation(Zch) - sandstone, siltstone and graphitic slate 20.6% Lynchburg Group(Zlg) - graphitic phyllite and metasiltstone 61.3% Lynchburg Group(Zlm) - metagraywacke 18.1% Hydrogeologic Units*: Lynchburg -IV 100.0% If you should have any questions, please contact the Community Development Department at 434-296-5832. ' A "Y" indicates that the watershed is a water supply watershed. An "N" means that it is not. 1 747 E U -7 33-42B 33-42A1 34-125 33-407 za 33-42A2 33-40C 34-9Ai 33 42A V O F0. 34-9 34-170 33-40 i=-42 33-40D1 34-11 B C~ 34-11A2 8 S 34-12A 34-1 l Al 4' 34',12 33-38B 640 . 34-12B 34-11 34- 34-1611 L FIVE FORKS LN G 34-13 33-45 33-47F Tier II Groundwater Assessment Site Map 0 230 460 690Feet APP#: SUB 2022-00198 O Subject Parcel - LUSTS IIIII' N TMP: 03400-00-00-011A1 O Known water wells - Superfund Sites Map Created by CDD on: 12/15/2022 water Protection ■ Landfills ***Aerial Imagery from Y2018*** n Ordinance Buffers 2 *Hydrogeologic Units Defined Taken from the 1213012003 Albemarle County Hydrogeologic Assessment Phase ii — Groundwater Availability and Sensitivity Assessment with Proposed Groundwater Assessment Standards. Prepared by ENSAT Corporation, Culpeper, VA. The process of investigating groundwater availability at the County -wide scale involved identifying distinct hydrogeologic units and comparing the units based on groundwater availability characteristics for which data could be obtained. Each hydrogeologic unit shares some common characteristics with regard to geology, soils, and topography, although there is quite a bit of variability within each unit. Nine hydrogeologic units were identified across the County, as follows, and as shown on the Albemarle County Hydrogeologic Unit Map (Figure 2). 1. 2. 3. Figure 2 - Albemarle County Hydrogeologic Unit Map Blue Ridge West-IW: This unit lies primarily on the steep eastern slopes of the Blue Ridge Mountains and is dominated by the Myersville and Parker Soils, and to a lesser extent the Chester. Slopes range from 2-60%. These soils are residual in nature. The Myersville soils are derived from weathered volcanic metamorphic rocks (greenstone) and Parker and Chester soil series are derived from weathered granite and granite gneiss. These soils are considered to be relatively deep and well drained. Blue Ridge East-IE: The Blue Ridge East unit overlies volcanic greenstone rock and represents the eastern limb of the Blue Ridge Anticlinorium. The area is characterized by the presence of a prominent ridge and trends generally northeast within the otherwise rolling piedmont landscape. Portions of this ridge are known locally as Green Mountain, Carters Mountain, and the Southwest Mountains. This area is dominated by the Rabun and Myersville soils and to a lesser extent, the Catoctin. The Rabun soil series is deep and well drained and like the Myersville soil series is formed from weathered greenstone. The Catoctin soil series is considered to be moderately deep and well drained and is also formed from weathered greenstone. Colluvial Fans -II: The Colluvial Fan unit lies at the base of the eastern slopes of the Blue Ridge Mountain and is characterized by relatively steep drainage swales that extend to more gradual sloping conditions. The area includes a series of intermittent drainages that include ephemeral drainage ways. Many of the intermittent drainages become perennial streams as this area includes stream bottom valleys. A significant portion of the unit area consists of transported soils including the Braddock and Thurmont. These soils are formed in colluvial and alluvial materials found on colluvial fans and terraces and are the product of weathered granite, granodiorite, granite gneiss, and greenstone. Both of these soil series are deep and well drained with slopes ranging from 2-25%. Residual soils including the Hayesville and the Chester are also abundant. These soils are also deep and well drained and are formed on upland slopes from weathered products of granite and granite gneiss. Slopes of these soils typically range from 2-45%. Bedrock geology consists largely of metagranitic rock of the Blue Ridge Basement Complex and metasedimentary, metaconglomerate and phyllite of the Swift Run Formation. The accumulation of transported soils (colluvial and alluvial) can form "cappings" over residual soils and parent material, which can add to the overall thickness of the overburden. 4. Piedmont Foothills -III: The Piedmont Foothills unit is characterized by rolling upland to relatively steep topography. Soils within this area dominated by the Hayesville, Ashe and Chester soil series which are moderately deep to deep, and generally well drained. These soils are found on the piedmont upland and foothills of the Blue Ridge Mountain on slopes ranging from 2-45%. These soils are formed from weathered granites and meta -granites of the Blue Ridge Basement complex. The Piedmont Foothills area is bifurcated by Hydrogeologic Unit IV (Lynchburg). 5. Lynchburg -IV: The Lynchburg unit is characterized by a relatively narrow band that trends in a northeast direction and includes a relatively long segment of the Mechums River valley. Soils within this unit are dominated by the Hazel and to a lesser extent by the Elioak and Glenelg soils. The Hazel soil series are moderately deep and well drained and are formed in the weathered products of metagraywacke sandstone and mica schist. Hazel soils lie on uplands and their slopes range from 7- 45%. The Elioak soil series are deep and well drained and are formed in the products of weathered micaeous metamorphic rock. Slopes of the Elioak range from 2-25%. The Glenelg soils are also deep and well drained and are formed in the weathered products of quartz mica schist. Slopes of the Glenelg range from 2-45%. The area is underlain primarily by the Lynchburg Formation and/or the Mechums River Formation which consists largely of metagraywacke, meta sandstone, and graphitic schist. 6. Ragged Mountain-V: The Ragged Mountain unit is characterized by mountainous terrain located in the southwestern portion of the County and is underlain by the metagranitic rocks of the Blue Ridge Basement Complex. The soils in the area are dominated by the Chester, Hayesville, Ashe, and Parker soil series. These soils are derived from weathered granite and granite gneiss and are deep and excessively well drained. These soils range in slope from 2-45% with some slopes up to 60 percent in the Parker soils. 7. Candler -VI: The Candler unit is underlain primarily by the Candler formation. Bedrock geology includes phyllites and to a lesser degree laminated metasiltstone. Soils underlying the unit area are dominated by the Manteo and Nason series. Manteo soils are shallow and somewhat excessively drained. The Manteo soils are formed in the weathered products of sericitic schist/phyllite on uplands and range in slope from 2-45%. The Nason soil series are deep and well drained and are also formed in the weathered products of sericitic schist/phyllite. The Nason soils are formed on uplands and range in slope from 2-25%. 8. Newark Basin-VII: The Newark Basin unit is characterized by low relief topography, which exists over Mesozoic basin geology. The unit is underlain by the Newark Supergroup which consists of sandstones, siltstones, and shales. Soils within this area are dominated by the Totier, Rapidan, and Penn series. The Totier soil series are deep and well drained and are formed from weathered Triassic red shale. These soils are found on uplands and range in slope from 2-15% deep to moderately deep and well drained. Slopes range from 2-25%. The Rapidan soil series are also deep and well drained and are formed in weathered products of Triassic conglomerate. The Rapidan, like the Totier, are found on uplands and range in slope from 2-25%. The Penn series are moderately deep and well drained and are formed from the weathered products of Triassic red shale. The Newark Basin hydrogeologic unit includes the Scottsville Basin located in the southern portion of the County and much smaller area of the Barboursville Basin located in the northern portion of the County. 9. Piedmont Proper-VIII: The Piedmont Proper unit is characterized by gently rolling piedmont topography. The bedrock geology underlying the unit is mapped as Metagraywacke, quartoze schist, and melange. Soils in the unit area are dominated by the Nason and the Manteo in nearly equal percentages. Although these same soils also dominated the Candler unit, it should be noted that the Manteo soils were nearly twice as prevalent as compared to the Nason. Manteo soils are shallow and somewhat excessively drained. The Manteo soils are formed in the weathered products of sericitic schists/phyllites on uplands and range in slope from 2-45%. The Nason soil series are deep and well drained and are also formed in the weathered products of sericitic schist. The Nason soils are formed on uplands and range in slope from 2-25%. 10. Barboursville -IX: This unit exists in only a small portion of the County at the area where Route 20 enters Orange County. Evidently this hydrogeologic unit was small enough that it did not factor into the ENSAT report and therefore does not have a description like the other units. You can see an unlabeled delineation of this unit in the map (Figure 2) along the northern County boundary near the right-hand side. 0 In Cooperation with the Thomas Jefferson Health District State Department of Health 1138 Rose Hill Drive Phone (434) 972-6200 Charlottesville, Virginia 22903 Fax (434) 972-4310 January 6, 2023 Syd Shoaf County of Albemarle Department of Community Development 401 McIntire Road Charlottesville, Virginia 22902-4596 APPROVED ALBEMARLE- CHARLOTTESVILLE FLUVANNA COUNTY (PALMYRA GREENE COUNTY (STANARDSVILLE) LOUISA COUNTY (LOUISA) NELSON COUNTY (LOVINGSTON) RE: Review of Proposed Subdivision Plat and attached Soils Information for Individual Onsite Sewage Systems as part of a two lot division of Tax Map 34-1IAt located in Albemarle County, Virginia (SUB202200198). Dear Mr. Shoaf: On December 8, 2022, 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 Virginia, the Selvage 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 certified as being in compliance with the Board of Health's Regulations by: Thomas Hogge OSE #1940001091. 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, n jr—' i d.I �Tl, _. Travis T. Davis, OSE Environmental Health Specialist, Sr. (Z) COMMONWEALTH of VIRGINIA DEPARTMENT OF TRANSPORTATION RICHMOND DISTRICT 2430 Pine Forest Drive Stephen C. Brich, P.E. COLONIAL HEIGHTS, VA 23834 COMMISSIONER a .VDOT.Virginia.gov February 6, 2023 County of Albemarle Department of Community Development 401 McIntire Road Charlottesville, VA 22902 Attn.: Syd Shoaf Re: SUB2022-00198— Luke David Grubb & Courtney Michelle Grubb Mr. Shoaf The Department of Transportation, Charlottesville Residency Transportation and Land Use Section has reviewed the above referenced plans as submitted by Roger W Ray and Assoc., dated November 10, 2023 and find the following generally acceptable. Please provide two copies of the revised plan along with a comment response letter. If further information is desired, please contact John Winn at 540-881-0651. A VDOT Land Use Permit will be required prior to any work within the right-of-way. The owner/developer must contact the Charlottesville Residency Transportation and Land Use Section at (434) 422-9399 for information pertaining to this process. Sincerely, John Wilson, P.E. Assistant Resident Engineer -Land Use Charlottesville Residency WE KEEP VIRGINIA MOVING