Part 1: Introduction
On March 23, 2001, the Private Well Testing Act (PWTA or Act), as set forth by N.J.S.A. C.58:12A-26 et seq., was signed into law. A copy of the Act is available online at
http://www.njleg.state.nj.us/2000/Bills/PL01/40 .htm. The regulations require that buyers and sellers, and landlords
Act and its associated and tenants, whose potable
specific list of parameters in accordance with the Private at N.J.A.C. 7:9E et seq.5 The Act made the exchange
Well Testing Act Regulations of information regarding the
inspection and a shared with the
building inspection. This water quality information is required to New Jersey Department of Environmental Protection (NJDEP)
enhance is found
the understanding of statewide groundwater to exceed the drinking water standard, the
quality. Whenever a contaminant NJDEP is required to notify the
county or local health department. neighboring homes and businesses of the particular well test failure.
county may be
or local health agency may then notify affected without disclosing the location
This report summarizes the analytical results from over 51,028 private wells tested between September 2002 and April 2007 under the Private Well Testing Act. This report is a follow-up to the NJDEP’s report entitled Initial Well Test Results for September 2002 - March 2003 that was released in March 2004.
A total of 55,749 samples were submitted to the state’s PWTA database during the period of September 2002 through April 2007 from a total of 51,028 wells throughout the state. If a well was sampled more than once, the highest PWTA parameter result value was used in this analysis. The results found in this report confirm many of the findings that were presented in the initial PWTA Report of March 2004. Data associated with gross alpha particle activity are included and evaluated in this report for the first time. Gross alpha particle activity data was not included in the initial PWTA report because this testing requirement was initiated and phased in beginning in March 2003, the cut-off date for the initial report.6 The phase-in occurred initially in those counties where gross alpha particle activity in groundwater was suspected to be the greatest.
This report includes a Definition and Terms Section (Appendix A) providing many
commonly used terms that relate to the PWTA program.
In addition, further information
For information regarding common treatments available to
5 The NJDEP estimates that there are about 400,000 private domestic wells in New Jersey, or about 13 p e r c e n t o f a l l N e w J e r s e y p r i v a t e w e l l s . 6 The gross alpha particle activity measurement is required in Atlantic, Burlington, Camden, Cape May Cumberland, Gloucester, Hunterdon, Mercer, Middlesex, Monmouth, Ocean, and Salem Counties.