New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 9D - WELL CONSTRUCTION AND MAINTENANCE; SEALING OF ABANDONED WELLS
Subchapter 2 - REQUIREMENTS AND PROCEDURES FOR THE CONSTRUCTION, INSTALLATION, OPERATION AND MAINTENANCE OF WELLS
Section 7:9D-2.1 - Well categories

1. Category 1 Potable Water Supply Wells: includes all public water supply wells (community and non-community), as defined in N.J.A.C. 7:10; non-public wells, domestic wells, and potable aquifer storage and recovery wells;

2. Category 2 Non-Potable Water Wells: includes all wells that are used for water withdrawal, injection, or recharge including, but not limited to, fire protection, irrigation, test, industrial, livestock, non-potable aquifer storage, and recovery wells, cooling, open loop, and standing column geothermal, injection, and recharge wells;

3. Category 3 Cased Environmental Resource and Geotechnical Wells: includes all cased non-water supply wells that are used for environmental engineering and remediation, or geotechnical investigation including, but not limited to, monitoring, air sparging, soil vapor extraction, recovery, observation wells, cathodic protection, methane gas extraction, borros anchors, inclinometers, extensometers, electrodes (including heated element wells), and injection wells used for bioremediation or chemical remediation;

4. Category 4 Uncased Environmental Resource and Geotechnical Borings: includes all uncased non-water supply wells that are used for environmental engineering and remediation, or geotechnical investigation including, but not limited to, soil borings, probe holes, wick drains, uncased holes, and borings installed through the use of direct-push technologies.

5. Category 5 Closed-loop Geothermal Wells;

6. Category 6 Dewatering Wells: includes dewatering wells or dewatering wellpoints;

7. Category 7 Elevator Boreholes: includes boreholes or jackholes drilled for the installation of elevator shafts; and

8. Category 8 Oil and Gas Exploration Wells.