Evaluating the surface recharged unconsolidated ground water resources for Williams County: a case OFR a Sole Source Aquifer. (Earth Sciences 09:00 AM, Saturday, April 5, 2003 Brewer/Frost Science 102 Dr. Daniel J. May-Presiding).
Weatherington-Rice, Julie P. ; Angle, Mike ; Struble, Andy 等
9:15
Williams County, Ohio, is underlain by a productive, unconsolidated
ground-water aquifer system. Historically, it was assumed that the till
at the surface was impermeable and that at least half of the
aquifers' recharge came from Michigan and Indiana. Recent
calibrated groundwater studies (including models) demonstrate that the
sand and gravel aquifers recharge locally. This recent discovery has
resulted in local activities to protect the documented currently
excellent ground water quality. Bryan Municipal Utilities has taken the
lead in a locally- and state-based cooperative effort to develop ground
water protection strategies, including watershed protection efforts, the
creation of a DRASTIC map for Williams County and the petition for a US
Environmental Protection Agency Sole Source Aquifer designation. A fully
integrated GIS-based DRASTIC map has been completed for Williams County,
incorporating numerical modifications to acknowledge the fractured
nature of the local soils and glacial deposits. The proposed Sole Source
Aquifer delineation boundary identification process included collection
of watershed maps for Michigan and Indiana. Utilizing these data
sources, a GIS-based, proposed Sole Source Aquifer map for Fulton,
Williams and Defiance counties in Ohio and portions of the St. Joseph
watershed in Michigan and Indiana has been developed. The new GIS-based
maps are presented along with their web-linked addresses. Efforts are
currently underway to encourage local governmental support to accompany
the petition documentation being developed for the USEPA Region V in
Chicago. The full application should be submitted within the next two
years.
JULIE P. WEATHERINGTON-RICE WEATHRINGTN-RICE.1@OSU.EDU, BENNETT
& WILLIAMS, 2700 E. DUBLIN-GRANVILLE RD. STE 400, COLUMBUS OH 43231,
MIKE ANGLE MIKE.ANGLE@DNR.STATE.OH.US, ODNR DIV. OF WATER, ANDY STRUBLE
ASTRUBLE@CITYOFBRYAN.COM, BRYAN MUNICIPAL UTILITIES