HomeMy WebLinkAboutSUB200800271 Review Comments Groundwater Assessment 2008-11-10Tier II Groundwater Assessment
TMP 47 - 47F
Application: SUB200800271 Michael O Barrett — Rural Division
Groundwater Reviewer: J. Rubinstein
Date: 10 November 2008
Description: 1 division — 2 lots
Water Quantity
The Albemarle County Database shows 18 wells within half a mile of the
lot. The wells range from 130 to 505 feet in depth with a median depth of
300 feet. The well yields range from zero to 50 gallons per minute with a
median yield of 3 gallons per minute. The median yield for the county is 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 parcel.'
Buffers
Most of the residue and the eastern half of Parcel 4A are in the Preddy Creek
watershed. The remaining portions of the parcels are in the watershed for the
Flannigan Branch of the North Fork of the Rivanna. Neither watershed
contributes to a public water supply. According to the county GIS site, there
is no required buffer on the parcel . 2
Site Description
According to the Virginia Department of Mineral Resources 1993 Map, the
residue and most of parcel 4A are underlain by hornblende and metagabbro
' http: / /gisweb.deq.virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 http: / /gisweb.albemarle.org/
(Czmd). The northern tip of parcel 4A is underlain by metasandstones of the
Lynchburg Group (Zch).
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:
The Lynchburg unit is characterized by a relatively narrow band that
trends in a northeast direction and includes a relatively long segment
of the Mechums River valley. Soils within this unit are dominated by
the Hazel and to a lesser extent by the Elioak and Glenelg soils. The
Hazel soil series are moderately deep and well drained and are formed
in the weathered products of metagreywacke sandstone and mica
schist. Hazel soils lie on the uplands and their slopes range from 7-
45 %. The Elioak soil series are deep and well drained and are formed
in the products of weathered micaeous metamorphic rock. Slopes of
the Elioak range from 2 -25 %. The Glenelg soils are also deep and
well drained and are formed in the weathered products of quartz mica
schist. Slopes of the Glenelg range from 2 -45 %.