HomeMy WebLinkAboutSUB200800207 Review Comments Groundwater Assessment 2008-08-29Tier II Groundwater Assessment
TMP 19 - 4B1 and TMP 19 - 4B2
Application Number: SUB200800207 Lot 1A, Lot 1B - Mayo - Final
Groundwater Reviewer: J. Rubinstein
Date: 28 August 2008
Description: 1 division — 2 lots
Water Quantity
The Albemarle County Database show 25 wells within half a mile of the
lots. The wells range from 88 to 350 feet in depth with a median depth of
220 feet. The well yields range from 3 to 30 gallons per minute with a
median yield of 6 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
According to the county GIS site and as shown on the plat, a buffer is
required along the tributary to Beaverdam Creek .2 The Beaverdam Creek
watershed is a portion of the watershed for the public water supply intake on
the North Fork of the Rivanna.
Site Description
In a groundwater assessment done for the Albemarle County, ENSAT
Corporation divided the county into `hydrologic units'. Below is the
description of the unit containing the parcels.
' http:// gisweb. deq .virginia.gov /deqims /viewer.htm ?SERVICE= VA_DEQ
2 http: / /gisweb.albemarle.org/
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 %.
According to the Virginia Department of Mineral Resources 1993 Map, the
western portion of the parcels is in the Fauquier Formation (Zfl). The
bedrock in the eastern portion of the parcels is biotite granulite of the Blue
Ridge Basement Complex (Ygbt).
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