DATA LAYER CLASSIFICATION

THEME:	Ground Water Resources - Erie County
THEME ID:	1271
CATEGORY:	Geologic/Soils; Hydrologic;
ABSTRACT:	This ground-water resources theme shows an estimate of sustainable yield available from the aquifers in the area. Individual well yields may vary.

CONTACT INFORMATION

Raymond M Lohrer, Information Services Planner Ohio Department of Natural Resources Division of   REAL ESTATE & LAND MANAGEMENT Resource Analysis Section 1952 Belcher Dr, Bldg C-2 Columbus, OH 43224

Telephone: Fax: Email:

614 265-1044 267-2981 Mike.Lohrer@dnr.state.oh.us

TRANSFER INFORMATION
Transfer Mode: FTP;
Transfer Instructions: Call, write or fax contact person for instructions

LOCATION INFORMATION

Quadrangle
KIPTON	BERLIN HEIGHTS	MILAN
KIMBALL	BELLEVUE	VERMILION EAST
VERMILION WEST	HURON	SANDUSKY
CASTALIA	VICKERY	KELLEYS ISLAND

PROJECT AREA: Erie County
BOUNDING COORDINATES: (lat/long in decimal degrees)

WEST: NORTH:

82.904 41.625

EAST: SOUTH:

82.341 41.283

DATA DESCRIPTION

DATA FILE NAME: ergwr.e00  Download this self-extracting file

Source Name	Source Scale	Date Of Material
Ground-Water Resources of Erie County, Alfred C. Walker, ODNR, Div of Water	1:62500	2/2/86

THEME AUTHOR:

PURPOSE:

This coverage was created as part of a project to develop coverages useful for environmental, land use planning, and erosion analyses along Lake Erie in northern Ohio. Ground -water resource information is useful in land use development planning, environmental studies, etc.

PUBLICATION DATE: FREQUENCY OF UPDATE: CURRENCY OF DATE: DEGREE OF COMPLETENESS:

6/6/94 N/A 1986 100

DATA FORMAT INFORMATION

DATA TYPE / DATA FORMAT / STATUS:
[GIS COVERAGE: DIGITAL - FINAL ]

SOFTWARE INFORMATION

PRESENTATION MODEL:	VECTOR - TOPOLOGIC
TRANSFER FORMATS:	ARC/INFO EXPORT
PRECISION:	Double
MINIMUM MAPPING UNIT:	N/A
CELL SIZE:	N/A
NATIVE DATABASE SIZE:	.1

PROJECT INFORMATION

PROJECTION/COORDINATE SYSTEM NAME:	Ohio State Plane
ZONE NAME OR NUMBER:	OHIO NORTH ZONE (3401)
PROJECTION UNITS:	Feet (State Plane Using NAD27)
HORIZONTAL DATUM:	North American Datum of 1927 (NAD27)
VERTICAL DATUM:	None
POSITIONAL ACCURACY:	49.21 ft

DATA BASE/DATA SET INFORMATION

DATABASE TABLE NAME: ergwr.pat

ITEM NAME	TYPE	OTHER TYPE	WIDTH	DESCRPTION
GW-CDE	Bin		4	Numeric code for ground-water availability Numeric code for ground-water availability

TABLE NAME: ergwr.pat

ITEM NAME: GW-CDE

CODE	DESCRPTION
1	Yields of 100-500 gallons per minute may be developed. Yields of more than 500 gallons per minute have been deveped in cavernous limestone and dolomite. Domestic supplies are generally obtained at depths of around 100 feet. Hydrogen sulfide, in varying amounts, may be encountered in the bedrock.
2	Yields of 100-500 gallons per minute as in Code 1. In this area there is a potential concentration of contamination due to the underground disposal of storm wastes fro Bellevue.
3	Yields of 100-500 gallons per minute may be developed. Municipal and industrial water supplies are available from wells drilled into permeable sand and gravel deposits in ancient buried valley.
4	Yields of 25-100 gallons per minute may be developed. Buried valley containing momre than 150 feet of unconsolidated deposits. Much of the valley fill consists of clay and fine sand. Extensive test drilling may be needed to locate coarse materials capable of supplying larger yields to drilled wells.
5	Yields of 3-10 gallons per minute may be developed. Yields of 15, or less, gallons per minute are developed from wells drilled into the limestone. Hydrogen sulfide may be present in varying amounts.
6	Yields of 3-10 gallons per minute may be developed. Ground water obtained from the Berea sandstone. Although this formation covers a larger area than shown, its thickness and recharge potential limit productivity to isolated zones.
7	Less than 3 gallons per minute can be developed. Limited quantities of ground water are obtained from thin discontinuous sand and gravel deposits interbedded in fine sandy clay or from the underlying shale. Drilling deeper than 30 feet into the shale is not recommended. Occasional gas or salt noted in the eastern half of the county. Larger yields may be obtained in western Huron and Oxford Townships and southeastern Perkins Township. Wells may encounter water-bearing limestone beneath as much as 60 feet of impervious shale.
8	Less than 3 gallons per minute can be developed. Thick deposits 9as much as 90 feet) of clay, sand and gravel cover the shale bedrock. Where permeable sands and gravels are present, adequate domestic supplies are obtained.

Liability Statement:

The Ohio Department of Natural Resources (DNR) provides this geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied, as to the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data.