Section 052. Class V Injection Well Construction And Operation Requirements

01. Construction Requirements. The following requirements apply to all Class V injection well s 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 th e current Well Construction Standards (IDAPA 37.03.09), the conditions of the well construction permit, and th e conditions of the injection well permit issued pursuant to these rules, except that a driller’s license is not required fo r 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 no t commence construction of the injection well until a certified copy of the approved injection well permit is obtaine d 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 th e 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 operato r 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) foo t 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

tion 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) foo t 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 requirement s 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 futur e drinking or other ground water source that may cause a health hazard or adversely affect a designated and protecte d 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) 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 an d conditions of this permit. (7-1-25) f. Proper operation and maintenance includes effective performance, adequate funding, operato r staffing and training, and adequate laboratory and process controls, including appropriate quality assuranc e procedures; (7-1-25) g. If compliance cannot be met, the owner shall take corrective action as determined by the Directo r or terminate injection

l terms an d conditions of this permit. (7-1-25) f. Proper operation and maintenance includes effective performance, adequate funding, operato r staffing and training, and adequate laboratory and process controls, including appropriate quality assuranc e procedures; (7-1-25) g. If compliance cannot be met, the owner shall take corrective action as determined by the Directo r or terminate injection. (7-1-25) h. The owner shall mitigate any adverse effects resulting from non-compliance with the terms an d 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 int o 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 les s 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 th e 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 thirt y (30) days of completion. (7-1-25) d. All deep injection wells that are to be permanently decommissioned shall be plugged in accordanc e with current Well Construction Standards. (7-1-25) e. Following permanent cessation of use, or where an injection well is not completed, the Directo r shall be notified. Decommissioning procedures or other action, as prescribed by the Director, shall be conducted. (7-1-25) f

f completion. (7-1-25) d. All deep injection wells that are to be permanently decommissioned shall be plugged in accordanc e with current Well Construction Standards. (7-1-25) e. Following permanent cessation of use, or where an injection well is not completed, the Directo r 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 i s 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)