New Jersey Statutes Title 58. Waters and Water Supply 58 § 12A-27

a. Every contract of sale of (1) real property the potable water supply for which is a private well located on the property, or (2) any other real property the potable water supply for which is a well that has less than 15 service connections or that does not regularly serve an average of at least 25 individuals daily at least 60 days out of the year, shall include a provision requiring, as a condition of the sale, the testing of that water supply for at least the parameters prescribed pursuant to sections 3 and 4 of this act.

b. Closing of title on the sale of the real property shall not occur unless both the buyer and the seller have received and reviewed a copy of the water test results. At closing, the buyer and seller both shall certify in writing that they have received and reviewed the water test results.