HomeMy WebLinkAboutSUB200800274 Review Comments Groundwater Assessment 2008-11-19Tier II Groundwater Assessment
TMP 115 - 11
Application: SUB20080274 — Myron Neuhauser - Rural Division
Groundwater Reviewer: J. Rubinstein
Date: 19 November 2008
Description: 3 divisions — 4 lots
Water Quantity
The Albemarle County Database shows thirteen wells within half a mile of
the lot. The wells range from 55 to 305 feet in depth with a median depth of
130 feet. The well yields range from 2 to 35 gallons per minute with a
median yield of 15 gallons per minute. This yield is significantly higher
than the median yield for the county of 7 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
two thousand feet of the parcels.'
Buffers
According to the county GIS site and as shown on the plat, a buffer is
require around the head of an intermittent stream on the western boundary of
Lot C.2 The northwestern portion of TMP 115 — 11 is in the Hardware
River Watershed. The southeastern portion is in the Briery Creek
Watershed. Neither watershed contributes to a public water supply.
Site Description
According to the Virginia Department of Mineral Resources 1993 Map,
most of the parcel is underlain by the phyllite and schist of the Chandler
' http:// gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 http: / /gisweb.albemarle.org/
Formation (Cca). To the southeast portion of the parcel is metagraywacke
(CZpm).
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 in which the parcels lies:
The Piedmont Proper unit is characterized by rolling piedmont
topography. The bedrock geology underlying the unit is mapped as
Metagraywacke, quartzose schist and melange. Soils in the unit area
are dominated by the Nason and the Manteo in nearly equal
percentages. Manteo soils are shallow and somewhat excessively
drained. The Manteo soils are formed by 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 %.