HYDRO31424

• Permit No: M1999051
• IBM Index Class Name: Hydrology
• Doc Date: 2/1/2001
• Doc Name: Underground Injection Control
• From: EPA
• To: DMG
• Permit Index Doc Type: Correspondence
• Media Type: D
• Archive: No

within thirty (30) days after the end of the quarter.
Appendix B contains Form 7520-8 that may be copied and
used to submit the quarterly summary of monitoring.
E. PLUGGING AND ABANDONMENT
1. Notice of Plupgino and Abandonment. The operator
shall notify the Director forty-five (45) days before
abandonment of the well. When a Class III well is
retired from service, the borehole and casing shall be
securely plugged to prevent any movement of the fluid
into or between USDWs.
2. Pluocina and Abandonment Plan. The plan shall meet
the requirements of 90 CFR Part 196.10 and must
address the needs of any post plugging monitoring or
cleanup for the protection of USDWs. Individual wells
shall be plugged and abandoned upon retirement.
Plugging and abandonment will take place once it has
been determined that there shall be no potential
further use of a well, either for mining, testing,
monitoring, or other purpose, or if deemed necessary
for protection of USDWs by the Director. Prior to
plugging and abandoning, the tubing system shall be
removed from the long string casing.
The plugging and abandonment plan (Appendix C),
submitted by the operator and revised by the EPA,
consists of one (1) plug with the following
specifications. A cast iron bridge (CIBP) shall be
set inside the long string casing at approximately the
bottom of the casing. Natural Soda will establish a
cement plug from immediately above the CIBP to the
surface. If it is not possible to run a CIBP inside
the long string casing due to well irregularities, a
cement basket shall be run in the hole to establish
the cement plug at the bottom of the long string
casing, then taq it, and then cement from the basket
established plug to surface. Both the surface and
long string casings shall be cut down to 1 to 3 feet
below ground level to salvage the wellhead. Cutting
down the casings will also allow for more complete
surface reclamation, which was requested by the BLM.
These plans have been revised and approved by the EPA
and are consistent with UIC requirements.
The cement plug shall be set using one or more of the
approved methods described in 90 CFR Part 146.10. The
number of sacks used for the cement plug shall be
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EPA FINAL Area Permit No. C03870-00000