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Source Water Assessment for Program -- Vulnerability of Public Supply Wells and Surface Water Intakes in New Jersey to Chemicals of Concern

Project Title: NJ172 & NJ175 Source Water Assessment for Program -- Vulnerability of Public Supply Wells and Surface Water Intakes in New Jersey to Chemicals of Concern
Project Number: 2454ABF
Project Chief:
Project Start Date: 01-APR-1999
Project End Date:12-DEC-2004

Project Objectives

To determine if the vulnerability of water from public supply wells (community and noncommunity) and surface water intakes to contamination by the various chemicals of concern can be predicted based on hydrogeologic, land use variables, or other water-quality indicators. To develop a geographic information system database and numerical rating models to rank wells and intakes into high, medium, and low vulnerability to contaminants.

Statement of Problem

A new Federal statute adopted by the New Jersey Department of Environmental Protection (NJDEP) concerning Source Water Assessment Program requires NJDEP to conduct assessments on the vulnerability of public supply wells (community and noncommunity) and surface water intakes to 84 contaminants of concern. These contaminants include pathogens, inorganics, nutrients, pesticides, volatile organic compounds (VOCs), disinfectant by products (DBPs), synthetic organic compounds (SOCs), and radionuclides. These contaminants are of concern because of their potential toxic or carcinogenic health effects, costs of monitoring and treatment, and lack of understanding of their origins and transport. Methods are needed to determine under what conditions certain wells may be vulnerable to these different contaminants. The results of this investigation may be used by NJDEP to suggest waivers for chemical analyses to reduce monitoring costs of purveyors that may be of low vulnerability.

Strategy and Approach

Previously developed numerical rating models will be modified to predict the vulnerability of public supply wells and intakes (community and noncommunity) to chemicals of concern based on hydrogeologic and land use variables and other water-quality indicators.

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Page Last Modified: Monday, 14-Jan-2013 11:01:22 EST