Choosing a laboratory is an important part of the private well testing process. The laboratory you select must be certified by the NJDEP to collect and analyze drinking water samples. For your convenience, we've provided lists of certified laboratories below.

Since most laboratories are not certified to sample and test all of the PWTA parameters, they must subcontract some of the test work to other laboratories. Although several laboratories may be involved in testing your well water, you only need to contact one. If necessary, they will enlist the services of other laboratories that are certified to collect and/or perform the tests they cannot conduct. (The parameters for which each laboratory is certified to sample and test are provided in the lists below.) When all of the tests have been completed, your selected laboratory will compile the overall results and send them to you on the New Jersey Private Well Water Test Reporting Form (An electronic version of this form is also sent to the NJDEP). Whenever a well test exceeds the drinking water standards, a notice is sent by the NJDEP to the county CEHA health department.

Click here for more information about the drinking water characteristics that are required to be tested under the PWTA.

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