Private Well Testing Act Summary Results by County for New Jersey

In March 2001, the New Jersey Private Well Testing Act (PWTA) was signed into law, and its regulations became effective in September 2002. The PWTA is a consumer information law that requires sellers or buyers of property with wells in NJ to test the untreated ground water for a variety of water quality parameters. The test data is submitted electronically by the test laboratories to the NJ Department of Environmental Protection for statewide analysis of ground water quality. These data presented here provide a summary of the percentage of wells within each county that exceeded a maximum contaminant level (MCL) or secondary standard for the period September 2002 to December 2024.2001年3月，《新泽西州私人水井检测法案》（New Jersey Private Well Testing Act, PWTA）正式签署为法律，其配套规章于2002年9月正式施行。该法案属于消费者信息类法规，要求新泽西州境内配备水井的房产买卖双方，对未经过处理的地下水开展多项水质参数检测。检测数据由检测实验室以电子方式提交至新泽西州环境保护部，用于全州范围内的地下水水质分析。本次呈现的数据集汇总了2002年9月至2024年12月期间，该州各郡内水井污染物浓度超过最大污染物限值（Maximum Contaminant Level, MCL）或次级水质标准的占比情况。