HomeMy WebLinkAboutSUB200800125 Review Comments Groundwater Assessment 2008-05-23Tier II Groundwater Assessment
TMP 112 -32
Application Number: SUB200800125 — Morris, Coleman - Family Division
Groundwater Reviewer: J. Rubinstein
Date: 23 May 2008
Description: 1 division — 2 lots
Water Quantity
The Albemarle County Database shows thirteen wells within half a mile of
the lot. The wells range from 71 to 305 feet in depth with a median depth of
150 feet. The well yields range from zero to 15 gallons per minute with a
median yield of 8 gallons per minute. The database listed the well on the
property as having a depth of 305 feet and a yield of 15 gallons per minute.
Water Quality
As shown on the Virginia Department of Environmental Quality (DEQ) GIS
websitel, there is no leaking underground storage tank sites (LUST) within
two thousand feet of the parcel.
Buffers
According to the county GIS site, there is a required buffer (not shown on
the plat) along tributary to Harris Creek. The buffer is in the southern
portion of the property which is not shown on the plat. The parcel is in the
Hardware River watershed which does not serve a public water supply.
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).
1 http:// gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
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 most of 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
schist/phyllite. The Nason soils are formed on uplands and range in
slope from 2-25%
The unit containing the southwest corner of the property including most of
Parcel C is described below:
The Blue Ridge East unit overlies "greenstone" and represents the eastern
limb of the Blue Ridge Anticlinorium. The area is characterized by the
presence of a prominent ridge which rises 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.
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