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Information Collection Underground Injection Control (UIC) Class V - epa

Information Collection Underground Injection Control (UIC) Class V - epa 2025

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The document is a questionnaire from the U.S. Environmental Protection Agency (EPA) regarding the Underground Injection Control (UIC) Class V Well Study, specifically focusing on sewage treatment effluent wells. It outlines the information required from states about the number, regulation, and operational details of these wells, as well as their impact on groundwater quality. The EPA collects this data to comply with a consent decree and improve regulatory oversight of sewage treatment practices.

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Click ‘Get Form’ to open it in the editor.
Begin by filling out the contact information section. Provide your name, agency, address, phone number, and email. This ensures that the EPA can reach you for any follow-up questions.
Move on to the regulations section. If applicable, provide citations for any state regulations governing sewage treatment effluent wells. Attach copies if necessary.
In the next section, document the number of sewage treatment effluent wells in your state. Answer whether this number accurately reflects reality and provide an estimate if not.
For well locations, input latitude and longitude coordinates or other identifying information as requested. If you have a database with this data, consider submitting it directly.
Continue through the form by detailing treatment levels prior to injection and answering questions about ownership and operational requirements for these wells.

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What is the UIC regulation?

Rule Summary The goal of federal regulations is to prevent contamination of underground sources of drinking water (USDW) from the placement of fluids underground through injection wells. The underground injection control regulations do this by regulating the construction, operation, and closure of injection wells.

What is a class V well?

A Class V well is used to inject non-hazardous fluids underground. Fluids are injected either into or above an underground source of drinking water. Class V wells include any wells that are not already classified as Classes I-IV or Class VI wells.

What is a class V uic well?

A Class V UIC well is a system used to inject nonhazardous fluids underground either into or above underground sources of drinking water. UIC well types range from simple shallow wells (e.g., dry wells, cesspools, and septic system leach fields) to complex experimental injection technologies.

What is the difference between Class 2 and Class VI wells?

Class II wells are used to inject fluids related to oil and gas production, including injection of CO2 for EOR. Class VI wells are used to inject CO2 for GS.

What is an underground injection control permit?

The UIC permit program regulates underground injection by six classes of wells (see definition of well injection, 144.3). The six classes of wells are set forth in 144.6. All owners or operators of these injection wells must be authorized either by permit or rule by the Director.

What are the classes of UIC wells?

Class I wells are used to inject hazardous and non-hazardous wastes into deep, isolated rock formations. Class II wells are used exclusively to inject fluids associated with oil and natural gas production. Class III wells are used to inject fluids to dissolve and extract minerals.

What is a Type V septic system?

Class V wells are typically shallow wells, such as shallow disposal systems and dry wells, used to place a variety of fluids directly below the land surface (40 CFR 144.80 (e)).

Information Collection Underground Injection Control (UIC) Class V - epa 2025

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