HomeMy WebLinkAboutSUB200900042 Review Comments Groundwater Assessment 2009-03-13Tier II Groundwater Assessment
TMP 93 - 44D
Application Number: SUB200800042 Duffer-Family Division
Groundwater Reviewer: J. Rubinstein
Date: 13 March 2009
Description: 1 division — 2 lots
Water Quantity
The Albemarle County Database shows eleven wells within half a mile of
the lot. The wells range from 85 to 210 feet in depth with a median depth of
125 feet. The well yields range from 6 to 20 gallons per minute (gpm) with
a median yield of 10 gpm. The median yield for the County is 7 gpm.
Water Quality
As shown on the Virginia Department of Environmental Quality (DEQ) GIS
website, there is one leaking underground storage tank site (LUST) within
two thousand feet of the parcel.' Therefore Section 500 through 503 of
Albemarle County Code requires that the well be tested for the volatile
organic compounds Benzene, Toluene, Ethylbenzene and Xylenes before a
building permit can be issued. 2
Buffers
According to the county GIS site, there are no required buffers on the
parcel .3 The parcel is in the Buck Island Creek watershed.
1 http: // gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 http: / /www.albemarle.org /department. asp ?department= ctyatty &relpage =2784
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 phyllite and schist of the Chandler
Formation (Cca).
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:
Soils underlying the 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
schistlphyllite. The Nason soils are formed on uplands and range in
slope from 2-25%.