Underground-injection controls

The USEPA currently groups underground injection wells into five classes for regulatory control purposes and has a sixth class under consideration. Each class includes wells with similar functions, construction, and operating features so technical requirements can be applied consistently to the class. 

Summary of Major Amendment Provisions of the 1996 SDWA Regulations 

Definition Constructed conveyances such as cement ditches used primarily to supply substandard drinking water to farm workers are now 

Contaminant Deletes old contamination selection requirement (USEPA regulate 25 new contaminants every 3 years). 

Regulation Requires the USEPA to evaluate at least five contaminants for regulation every 5 years, addressing the most risky first, and 

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Syed, T., 1989, An Overview of the Underground Injection Control Regulations for Class II (Oil and Gas Associated) Injection Wells — Past, Present and Future In Environmental Concerns in the Petroleum Industry (edited by S. M. Testa), Pacific Section American Association of Petroleum Geologists Symposium Volume, pp. 199-207. 

The Safe Drinking Water Act (SDWA), enacted in 1974 to assure high-quality water supplies through public water system. The act is truly the first federal intervention to set the limits of contaminants in drinking water. The 1986 amendments came two years after passage of the Hazardous and Solid Waste Amendments (HSWA) or the RCRA amendments of 1984. As a result, certain statutory provisions were added to these 1986 amendments to reflect the changes made in the underground injection control (UIC) systems. 

EPA. 1983a. Underground injection control program. U.S. Environmental Protection Agency. Code of Federal Regulations. 40 CFR 144.1. 

Classification of Class III Injection Wells for the Underground Injection Control Program Yes 40 CFR 146.5 EPA 1980c... 

The CDPHE has said there are various options for offsite shipment of hydrolysate. These options would require destruction of the agent by hydrolysis, followed by shipment to a publicly owned treatment works or a Safe Drinking Water Act permitted underground injection control unit. They are in addition to using an appropriate TSDF. The hydrolysate would have to be manifested as a hazardous waste and accompanied by an LDR notice of constituents and a certification of agent treatment. 

Underground injection control regulations for Class V injection wells EPA 2001 n 63FR40586... 

The Underground Injection Control Program (UIC), under SDWA, protects the subsurface emplacement of fluid. This act allowed the SDWA to protect the public from contaminated drinking water. This program is discussed in 8.5. 

U.S. EPA, 1999. The class V underground injection control study, in Aquifer Recharge and Aquifer Storage and Recovery Wells EPA/816-R-99-014u, vol. 21. 

State-issued Underground Injection Control permits may be required to inject process additives into the subsurface. 

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