Ohio Administrative Code
Title 3745 - Ohio Environmental Protection Agency
Chapter 3745-34 - Underground Injection Control Program
Section 3745-34-56 - Operating requirements
Current through all regulations passed and filed through December 16, 2024
(A) Except during stimulation, the owner or operator of a class I injection well shall assure the director in writing, that injection pressure at the wellhead does not exceed a maximum which shall be calculated so as to ensure that the pressure in the injection zone during injection does not initiate new fractures or propagate existing fractures in the injection zone. The owner or operator shall operate a class I injection well such that the injection pressure does not initiate fractures or propagate existing fractures in the confining zone, or cause the movement of injection or formation fluids into a USDW.
(B) Injection between the outermost casing protecting USDWs and the well bore is prohibited.
(C) The owner or operator of a class I hazardous waste injection well shall maintain an annulus pressure that exceeds the operating injection pressure, unless the director determines that such a requirement might harm the integrity of the well. The fluid in the annulus shall be noncorrosive, or shall contain a corrosion inhibitor.
(D) The owner or operator of a class I hazardous waste injection well shall maintain mechanical integrity of the injection well at all times.
(E) Permit requirements for owners or operators of hazardous waste class I injection wells which inject wastes which have the potential to react with the injection formation to generate gases shall include the following:
(F) The owner or operator of a class I hazardous waste injection well shall install and use continuous recording devices to monitor the injection pressure; the flow rate, volume, and temperature of injected fluids and the pressure on the annulus between the tubing and the long string casing, and shall install and use either of the following:
(G) If an automatic alarm or shutdown is triggered, the owner or operator shall investigate immediately and identify as expeditiously as possible the cause of the alarm or shutoff. If, upon such investigation, the well appears to be lacking mechanical integrity, or if monitoring required under paragraph (F) of this rule otherwise indicates that the well may be lacking mechanical integrity, the owner or operator shall do the following:
(H) In the event that a loss of mechanical integrity is discovered pursuant of this rule or during periodic mechanical integrity testing, the owner or operator shall do the following:
(I) Whenever the owner or operator of a class I hazardous waste injection well obtains evidence that there may have been a release of injected wastes into an unauthorized zone the owner or operator shall do the following:
(J) The owner or operator of a class I hazardous waste injection well shall submit a plan for approval to the director prior to conducting any well work over which requires removal of the injection tubing.