References in periodicals archive ?
WHPA delineations were given to towns and water suppliers to use in the pollution source inventory and management phases of WHPA protection.
For a description of WHPA delineation for large wells in bedrock and small wells, see (Bradley and Bobiak 1993).
The delineation methodology for the 87 large wells (37 wellfields) completed in stratified drift used the Uniform Flow Equation (UFE) (McWhorter et al.
Correct well locations were a basic necessity for WHPA delineation, and RIDEM staff mapped or confirmed locations of all the community and the larger non-community wells (Bradley and Bobiak 1993) using USGS files, topographic sheets, aerial photos, and field visits.
Where the UFE was used, either for clip box development or for WHPA delineation, RIDEM used the U.
Because both modules offer analytical solutions consistent with the RIWHPP, RIDEM considered MWCAP and RESSQC the most appropriate modules of the model for the delineation of capture zones.
A variety of changes in federal delineation criteria have been proposed in recent years, including exemptions for farmed wetlands and for areas not inundated for at least 21 consecutive days during the growing season.
Prior to 1986, the Corps, EPA, FWS, and NRCS used a variety of local and national delineation guidelines, but none had adopted uniform delineation standards (National Research Council 1995).
The 1989 manual relaxed delineation criteria in a number of ways.
As areas not previously considered wetlands became subject to permit requirements under the 1989 manual, farm, development, and utility company interests began pushing for changes in the 1989 delineation criteria.
The NRC report, released in May 1995, calls for a new federal delineation manual based on the existing manuals and on knowledge of wetland systems gained since 1987 (National Research Council 1995).
Wetland delineation continues to be a prominent feature in proposals to reform the Clean Water Act and the swampbuster provisions.