2021-12-08_GENERAL DOCUMENTS - C1981019

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DocuSign Envelope ID:6BC32598-B737-464E-898A-81 F1 F7131339133 • surface trace (if horizontal or deviated well). For wells that are drilled and to be converted to an injection well, also provide the current well schematic diagram. Part II. Well Construction or Conversion Procedures(40 CFR& 144.52) Provide a detailed description of well construction or conversion procedures,that includes: • proposed logs and other tests conducted during the drilling and construction of new well(s), • proposed stimulation plan(s), if planned, and • description of alarms and shut-down systems at the well (if applicable). For wells that are drilled and to be converted to an injection well, also provide: • well completion and cementing records, and • previously run logs/tests. Attachment D. Injection Operation and Monitoring Program(40 CFR§144.54) Submit the following information: • flow diagram of fluid flow through the facility, • contingency plan(s)to cope with well failure, so as to prevent migration of contaminating fluids into a USDW, • drawing of the surface construction, • locations of all monitoring devices (show on the map(s) referenced in section A.I II. above), and • description of sampling and monitoring devices to monitor the nature of the injected fluids, injection pressure, annulus pressure (if applicable), flowrate, and cumulative volume. Additionally, submit the following proposed operating data for each well in the individual or area permit: • average and maximum daily rate and volume of fluids to be injected, • average and maximum injection pressure, • source(s)of injection fluids (including field and formation names), • proposed annular fluid, and • analysis of the chemical and physical characteristics of the injection fluid.At a minimum, this should include pH, specific gravity, TDS, and conductivity. Consult with the regional EPA office for additional guidance. Attachment E. Plugging and Abandonment Plan (40 CFR§§144.31 & 144.51) Submit a plugging and abandonment(P&A)plan of the well on EPA Form 7520-19 along with a P&A diagram. The plan should include: • type, and number of plugs to be used, • placement of each plug including the elevation of top and bottom, • type, grade, and quantity of cement to be used, and • method of placement of the plugs. Provide one or more cost estimates from an independent firm in the business of plugging and abandoning wells to conduct the work proposed in the P&A plan for EPA to contract plugging of the well. This is to ensure that EPA has adequate funding to plug the well(s) if the operator is unable to plug the well(s). Consult with the regional EPA office for additional guidance on developing the P&A plan and cost estimate calculations. Attachment F. Financial Assurance (40 CFR§144.52) Submit evidence of financial resources, such as a surety bond or financial statement, necessary for a third party to close, plug, or abandon the well in the event an owner or operator is unable to do so. The monetary amount is based on the P&A plan cost estimate provided in Attachment E. Attachment G.Site Security and Manifest Requirements (Commercial Wells Only) Provide a proposed site security plan. This could include fencing around the perimeter of the facility. Consult with the regional EPA office for additional guidance on manifest requirements. Attachment H.Aquifer Exemptions (40 CFR§§144.7&146.4) If an aquifer exemption (AE) is requested, submit the information required at 40 CFR§ 144.7 and to demonstrate that the criteria found at 40 CFR§ 146.4 are met. Consult with your regional EPA office for additional guidance.