Class V Injection Well Construction And Operation Requirements

01. Construction Requirements. The following requirements apply to all Class V injection wells authorized by permit unless noted differently: (7-1-25) a. Deep injection wells shall be constructed by an Idaho licensed well driller to conform with the current Well Construction Standards (IDAPA 37.03.09), the conditions of the well construction permit, and the conditions of the injection well permit issued pursuant to these rules, except that a driller’s license is not required for the construction of a driven mine shaft or a dug hole. (7-1-25) b. Well drillers or other persons involved with the construction of any injection well shall not commence construction of the injection well until a certified copy of the approved injection well permit is obtained from the Director. (7-1-25) c. Injection wells shall be constructed in accordance with the conditions of the permit. Rule- authorized shallow injection wells shall be constructed as shown or described in the inventory submittal. (7-1-25) d. Injection wells shall be constructed to prevent the entrance of any fluids other than specified in the permit. (7-1-25) e. Deep injection wells shall be constructed to prevent waste of artesian fluids or movement of fluids from one aquifer into another. (7-1-25) f. When construction or modification of an injection well has been completed, the owner or operator shall inform the Director of completion on a form provided by the Department. (7-1-25) g. A sampling port shall be provided for deep injection well systems if the system is enclosed. (7-1-25) h. All new injection wells constructed into alluvial formations shall have a minimum ten (10) foot separation from the bottom of the well and seasonal high ground water. (7-1-25) 02. Operational Conditions and Requirements. The following requirements apply to all Class V injection wells authorized by permit unless noted differently: (7-1-25) a. The injection well shall not be used until the construction, operation and maintenance requirements of the permit are met and provisions are made for any required inspection, monitoring and record keeping. (7-1-25) b. For both permitted injection wells and rule-authorized shallow injection wells, injection of any contaminant at concentrations exceeding the standards described in Section 055 of this rule into a present or future drinking or other ground water source that may cause a health hazard or adversely affect a designated and protected use is prohibited. (7-1-25) c. The injection well owner or operator shall develop approved procedures to detect constructional or operational failure in a timely fashion and shall have contingency plans to cope with the well failure. (7-1-25) d. Authorized representatives of the Department shall be allowed to enter, inspect and/or sample: (7-1-25) IDAHO ADMINISTRATIVE CODE IDAPA 37.03.03 – Rules & Minimum Standards Department of Water Resources for the Construction & Use of Injection Wells Section 055 Page 16 i. The injection well and related facilities; (7-1-25) ii. The owner or operator’s records of the injection operation; (7-1-25) iii. Monitoring instrumentation associated with the injection operation; and (7-1-25) iv. The injected fluids. (7-1-25) e. The injection facilities shall be operated and maintained to achieve compliance with all terms and conditions of this permit. (7-1-25) f. Proper operation and maintenance includes effective performance, adequate funding, operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures; (7-1-25) g. If compliance cannot be met, the owner shall take corrective action as determined by the Director or terminate injection. (7-1-25) h. The owner shall mitigate any adverse effects resulting from non-compliance with the terms and conditions of the permit. (7-1-25) i. If the injection well was constructed prior to issuance of the permit, the well shall be brought into compliance with the terms and conditions of the permit in accordance with the schedule of compliance issued by the Director. (7-1-25) j. The permit shall not convey any property rights. (7-1-25) 03. Conditions of Permanent Decommissioning. The following requirements apply to all Class V injection wells authorized by permit and rule authorized shallow injection wells, unless noted differently: (7-1-25) a. Notice of intent to permanently decommission a well shall be submitted to the Director not less than thirty (30) days prior to commencement of the decommissioning activity. (7-1-25) b. The method of permanent decommissioning for all injection wells shall be approved by the Director prior to commencement of the decommissioning activity. (7-1-25) c. Notice of completion of permanent decommission shall be submitted to the Director within thirty (30) days of completion. (7-1-25) d. All deep injection wells that are to be permanently decommissioned shall be plugged in accordance with current Well Construction Standards. (7-1-25) e. Following permanent cessation of use, or where an injection well is not completed, the Director shall be notified. Decommissioning procedures or other action, as prescribed by the Director, shall be conducted. (7-1-25) f. The injection well owner or operator has the responsibility to ensure that the injection operation is decommissioned as prescribed. (7-1-25) 04. Duration of Approved Permits. The length of time that a permit may be in effect for Class V wells authorized by permit shall not exceed ten (10) years. (7-1-25) 053 - 054. (RESERVED)