HomeMy WebLinkAboutSUB200700411 Review Comments Groundwater Assessment 2008-01-08Tier II Groundwater Assessment
TMP 9 -21 and TMP 9 -22C
Application Number: SUB200700411
Groundwater Reviewer: J. Rubinstein
Date: 8 January 2008
Description: 2 divisions and 1 Boundary Line Adjustment
Water Quantity
The Albemarle County Database shows fourteen wells within half a mile of
the parcel. The wells range from 105 to 420 feet in depth with a median
depth of 225 feet. The well yields range from one to twenty five gallons per
minute with a median yield of nine gallons per minute.
Water Quality
As shown on the Virginia Department of Environmental Quality (DEQ) GIS
website, there are no leaking underground storage tank sites (LUST) within
mile of the parcel.'
Buffers
According to the county GIS site2, the county requires the maintanence of a
buffer on the tax map 9 -21 along the Lynch River and its tributary. These
buffers are approximately 1500 feet from the new lot. The new lot also has
a required buffer, not shown on the plat, along a tributary of Beaverdam
Creek.
The new lot is in the Beaverdam Creek watershed while the residue is in the
Lynch River watershed. Both watersheds are in the public water supply
watershed for the intake on the North Fork of the Rivanna.
' http:// gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 http: / /gisweb.albemarle.org/
Site Description
In a groundwater assessment done for the Albemarle County, ENSAT
Corporation divided the county into `hydrologic units'. Below is ENSAT's
description of the unit containing the parcel:
The Piedmont Foothills unit is characterized by rolling upland to
relatively steep topography. Soils within this area re 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%.
According to the Virginia Department of Mineral Resources 1993 Map,
most of the parcel is on the pyroxene granulite of the Blue Ridge Basement
Complex (Ypg).