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Shallow Injection
Wells (Class V)
The wells in this class are as diverse as they are similar. This category
came about after all the easy definable wells were put into classes I
through IV. In general, EPA did not have definite information on these
wells when it published the UIC regulations in the late 1970s. This classification
includes large septic tanks as well as very sophisticated experimental
wells.
- Class V Final Determination
EPA is announcing a final determination for all sub-classes of Class
V injection wells not included in a 1999 rulemaking (64 FR 68546).
The Agency has determined that additional federal requirements are
not needed for these wells at this time, and existing federal underground
injection control (UIC) regulations are adequate to prevent Class
V injection wells from endangering underground sources of drinking
water. EPA proposed this determination in May 2001 (60 FR 22971).
The final determination is based on the Agency’s evaluation of
existing data collected for The Class V Underground Injection Control
Study (EPA/816-R-99-014), additional sources of information found
in the public docket, and public comment on the proposed determination.
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