HomeMy WebLinkAboutSUB200700404 Review Comments Groundwater Assessment 2008-05-07Tier II Groundwater Assessment
TMP 55 - 57A
Application Number: SUB200700404 Maloney /2 lot - Final
Groundwater Reviewer: J. Rubinstein
Date: 7 May 2008
Description: 1 division — 2 lots
Water Quantity
The Albemarle County Database shows six wells within half a mile of the
lot. The wells range from 72 to 305 feet in depth with a median depth of
149 feet. The well yields range from 0 to 60 gallons per minute with a
median yield of 15 gallons per minute.
Water Quality
As shown on the Virginia Department of Environmental Quality (DEQ) GIS
website, there is one leaking underground storage tank sites (LUST) within
two thousand feet of the parcel! Section 500 through 503 of Albemarle
County Code requires that new wells within two thousand feet of a LUST
site be tested for the volatile organic compounds Benzene, Toluene,
Ethyl-benzene and Xylenes before a building permit can be issued. a
Buffers
According to the county GIS site, there is a required buffer on southeast
corner of the parcel.3 This buffer is not shown on the plat. There is a buffer
along the western portion of lot 2 that is shown correctly on plat but not in
the county GIS site. This buffer was identified by county employee in 2005.
The parcel is in the Licking Hole Creek watershed which serves the public
water supply of South Fork of the Rivanna Reservoir.
1 http: // gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 for the volatile organic compounds Benzene, Toluene, Ethylbenzene and Xylenes
3 http: / /gisweb.albemarle.org/
Site Description
According to the Virginia Department of Mineral Resources 1993 Map, the
bedrock beneath the parcel is in the charnodite gneiss of the Blue Ridge
Basement Complex (Yc).
In a groundwater assessment done for the Albemarle County, ENSAT
Corporation divided the county into `hydrologic units'. Below is ENSAT's
description of the Chandler Unit which contains the parcel:
The Blue Ridge West unit lies primarily on the steep eastern slopes of the
Blue Ridge Mountain and is dominated by the Myersville and Parker
soils, and to a lesser extent the Chester. Slopes can be found to range
from 2 -60 %. These soils are residual in nature. The Myersville soils are
derived from weathered volcanic metamorphic rocks (greenstone) and the
Parker and Chester soil series are derived from weathered granite and
granite gneiss. These soils are considered to be relatively deep and well
drained.