| Title | Definition |
|---|---|
| Environmental well | This is a type of well normally associated with a site investigation or remedial action. Environmental wells include air-sparging wells, biosparging wells, vapor extraction wells, free product recovery wells, vadose zone wells and wells involving other types of remediation. Environmental wells are permanent installations, as opposed to geotechnical or exploration boreholes that are drilled to obtain samples or information, and then are immediately abandoned. |
| Exempt Well | This is a well having a pump with a maximum capacity of not more than thirty-five gallons per minute which is used to withdraw groundwater pursuant to A.R.S. § 45-454. A.R.S. § 45-402(8). Exempt wells are small non-irrigation wells, typically used to provide water for domestic purposes. In AMAs, withdrawals of groundwater from exempt wells for non-irrigation uses other than domestic purposes and stock watering shall not exceed 10 acre-feet per year. A.R.S. § 45-454(B2). |
| Existing Well | A well which was drilled before June 12, 1980 and which is not abandoned or sealed or a well which was not completed on June 12, 1980 but for which a Notice of Intent to Drill was on file with the Arizona Water Commission on such date. A.R.S. § 45-591(1). |
| Exploration well | This is a well drilled in search of geophysical, mineralogical or geotechnical data. A.A.C. R12-15-801(13). |