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Home My WebLink AboutSUB201700127 Review Comments Family Division Plat 2017-09-11County of Albemarle Department of Community Development 401 McIntire Road, Charlottesville, VA, 22902 Phone 434-296-5832 Fax 434-972-4126 Memorandum To: Jeff Powell (JEFF@ROUDABUSH.COM) From: Cameron Langille, Senior Planner Division: Planning Date: September 11, 2017 Subject: SUB201700127 TMP 18-41A & 18-41C Boundary Line Adjustment and Family Subdivision Plat 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. [18-10.3.1 and 14-302 (10)] The transfer of two (2) development rights to TMP 18-41C as proposed with this plat is not permitted. As stated in the Development Right Allocation notes on Sheet 1, two (2) development rights are proposed to be transferred to TMP 18-41C with the transfer of the 45.791 acre Parcel "Y" which is currently part of TMP 18-41A. This will bring the total development rights available to TMP 18-41C to five (5) development rights. Based on a review of the Albemarle County Tax Map boundaries of parcels TMP 18-41 and 18-41A, each lot had five (5) theoretical development rights as of December 1980. Parcel 18-41 was subdivided in 1996, as recorded in DB 1513, pages 413-417. That instrument created what is now known as TMP 01800-00-00-04100 and two (2) development rights were transferred to that parcel with the subdivision. The residual parcel was assigned a new tax map number and is now known as TMP 18-41C. The residual parcel, TMP 18-41C, retained three development rights which have not been used. However, the two development rights that are proposed to be transferred to TMP 18- 41C come from the original 1979 boundary of TMP 18-41A. Development rights cannot be transferred between parcels. If the applicant disputes this, please submit an application for a Letter of Determination for development rights, and the $108 associated fee. This will be reviewed by the Zoning Division in order to ascertain what development rights are available between the parcels. A link to the application can be found HERE. Staff wants to clarify that the proposed subdivision may occur that creates the new parcel X. The boundary line adjustment transferring Parcel Y to TMP 18-41C is also allowed as long as the plat makes it clear that no development rights will be transferred. The Development Right Allocation notes on Sheet 1 will need to be amended to state that no development rights are transferred to TMP 18-41C. The two development rights could instead be assigned to the new Parcel X, but the New Parcel X development right note will need to be amended to state "when further divided these rights shall not comprise more than [number] acres." 1 2. [14-302 (A)(4)] Please amend the label for the proposed 30' joint access easement so that it states whether it is public or private. 3. [14-302 (A)(7)] Please amend the line type symbology for the departing lot line of Parcel Y that touches the existing lot line of TMP 18-41C. It should be a dashed line. 4. [14-302 (A)(15)] Please add a note identifying the names and addresses of any easement holders affecting the property. Specifically, the access easement for the driveway to TMP 18-41A1. 5. [14-302 (13)(4)] Please state whether any places of burial are located on the subject properties. 6. [14-303 (A)] Please insert a correct description of the land to be subdivided in the statements of consent to division on Sheet 1. 7. [14-303 (C) and 14-303 (E)] Please show the entire exterior boundary dimensions of the 45.791 acre Parcel Y with bearings in degrees, minutes and seconds. 8. [14-303 (D)] The acreage of Parcel Y as stated in the Development Right Allocation note on Sheet 1 does not match the Acreage Summaries on Sheet 1 and label on Sheet 2. Does Parcel Y measure 45.789 acres, or 45.791 acres? 9. [14-303 (1)] Please provide a definite bearing and distance tie of not less than 2 permanent monuments on the exterior lot boundaries of the property and further tie to existing street intersection where possible. 10. [14-308.1] The Tier II groundwater assessment report is attached. 11. [14-309, 14-310 & 14-416] Please submit documentation of approval from the Health Director for the proposed subdivision of TMP 18-41A. The residual 2.242 acre TMP 18-41A and the new 10.487 acre Parcel X each have an existing house served by septic systems. Staff requests confirmation from the Health Department that the primary and secondary drainfields for the existing septic systems will be located within the new parcel boundaries for each parcel. Please contact Cameron Langille in the Planning Division by using blangille@albemarle.org or 434-296-5832 ext. 3432 for further information. 2 TIER II GROUNDWATER ASSESSMENT County of Albemarle Department of Community Development 401 McIntire Road, North Wing Charlottesville, Virginia 22902 434-296-5832 1 www.albemarle.org/cdd Water Quantity Water Quality Hydrography Geology Tier II Groundwater Assessment Site Map ° 260 520 780Feet APP#• SUB 2017-00127 Subject Parcel 0 LUSTs TM P: 01800-00-00-041AO O Known Water Wells ® Superfund sites Ma Created b CDD on: 08 25 2017 P Y / / � Water Protection � Landfills ***Aerial Imagery from Y2013*** 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). 2. 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 3 from weathered granites and meta -granites of the Blue Ridge Basement complex. The Piedmont Foothills area is bifurcated by Hydrogeologic Unit IV (Lynchburg). 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. 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. 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%. 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. M