HomeMy WebLinkAboutSUB200800228 Review Comments Groundwater Assessment 2008-09-22Tier II Groundwater Assessment
TMP 130 -11
Application Number: SUB200800228 Sam Spanger (2 Lot Subd) - Final
Groundwater Reviewer: J. Rubinstein
Date: 22 September 2008
Description: 1 division — 2 lots
Water Quantity
The Albemarle County Database show 22 wells within half a mile of the
lots. The wells range from 83 to 300 feet in depth with a median depth of
150 feet. The well yields range from 3 to 80 gallons per minute with a
median yield of 9 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 parcel.'
Buffers
The parcel is in the watershed for the Totier Creek Reservoir, a public water
supply. According to the county GIS site, there is a required buffer along
the tributary to Totier Creek in southern portion of the parcel . 2
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 in which lies the property:
' http:// gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 http: / /gisweb.albemarle.org/
The Newark Basin unit is characterized by low relief topography,
which exists over Mesozoic basin geology. The unit is underlain by
the Newark Supergroup which consists of sandstones, siltstones and
shales. Soils within this area are dominated by the Totier, Rapidan,
and Penn series. The Totier soil series are deep and well drained and
are formed from weathered Triassic red shale. These soils are found
on uplands and range in slope from 2-15%.
The Rapidan soil series are also deep and well drained and are formed
in weathered products of Triassic conglomerate. The Rapidan, like
the Totier, are found on uplands and range in slope from 2 -25 %. The
Penn series are moderately deep and well drained and are formed
from the weathered products of Triassic red shale. The Newark Basin
hydrogeologic unit includes the Scottsville Basin located in the
southern portion of the County and a much smaller area of the
Barboursville Basin located in the northern portion of the County.