GENERAL42099

• Permit No: M1983194
• IBM Index Class Name: General Documents
• Doc Name: COVER SHEET 4 APPENDICES
• Media Type: D
• Archive: No

4.3 APPENDIX C
4.3.3 Evaporation Pond
The designated operator/lessee will be required to pump
aced haul waste water from the evaporation ponds to ao
approved disposal site if the evaporation ponds reach or
exceed their design capacity, ualess otherwise approved is
writing by the authorized otLcer.
The liners of the evaporation ponds will be underlain
by a minimum of 4 inches of suitable soil material containing
at least 95 percent material passing the No. ]0 sieve (ASTM
E•11 specifications) or other approved method.
A watertight catchment basin or other approved method
will be employed at the outlet of the leak detection system
oa each of the evaporation ponds to contain any leaked
Ouids.
A buffer zone of 15 feet of undisturbed vegetation will
be maintained between the tce of the fill slope on the east
side of the evaporation ponds and the edge of the adjacent
major drainage.
Evaporation pond liner integrity will be maintained during
periodic removal of solids. If the liner is damaged during
solids removal operations, the liner shall be repaired m the
satisfaction of the authorized officer.
4.3.4 Well Drilling, Completion and
Abandomnent
The annulus between the well bore and the 8 5J8-inch
well casing will be filled with cement from the shoe of
the 8 5/8-inch casing upward for 250 feet. Prior to horizontal
drilling a Cement Evaluation Tool (CET) or equivalent log
shall be run across this interval plus 100 fat above.
A "Notice of Intent to Abandon" will be submitted by
the designated operator/lessee to the authorized o0ficer
before abandonment of any well developed within this
project The notice will contain an "as-built" diagram of
the well and will describe nay changes fiom the approved
abandonment/plugging procedures. The authorized officer
will review and approve or approve with modifications the
notice within I S calendar days of receipt. No special form
for this notice is required. As a minimum, the following
plugs will be required: 1) a steel bridge plug will be placed
at the base of the production casing; 2) 100 feet of cement
wBl be placed above this steel bridge plug; 3) a cement
plug will be placed 20 fat above the Mahogany Zone down
through to 120 feet into the Mahogany Zone sect must
be tagged to insure placement and 4) 65 fat of cement
will be placed at the surface. The intervals between the
cement plugs will be filled with 9 pound/gallon or heavier
mud. Other cement plugs or revised plugging procedures
may be required, based on analysis of the cement evaluation
logs. An appropriate surface hole location marker will be
installed at grade.
Well spacing between cavities shall be adequate to ensure
a 2Q-foot width at the top of the pillars that separate the
cavities.
Diverter lines for the blow out preventer shall be directed
into a lined mud pit at least 125 feet ftom the well.
Adequate waitingoocement times shall be observed for
all cementing operations to achieve a minimum of 500 psi
compressive strength.
Drilling fluid material will be contained in bentonite lined
mud pits and hauled to evaporation ponds upon completion
of drill holes, unless otherwise approved in writing by the
authorized officer.
A yearly plan of development and summary of the activity
for the previous year shall be submitted prior to initiation
of project development and by February 1 of each year
thereafter The plan will include the following items:
1. Summary of the activity for the previous year including,
but not limited to,
a. Any new findings or developments,
b. Acres disturbed, acres reclaimed,
c. Wells drilled, plugged, converted to monitoring, etc,
d. Hydrologic monitoring.
2. Proposed operations for the coming year, including, but
not limited to,
a. Location and number of new wells to be drilled,
b. Well field piping system layout, including location
of pressure transducers, 6inch drain line connection
points, and valves.
c. Number of acres to be disturbed and to be reclaimed.
3. Status of all surface facilities and wells not abandoned.
4. Any technical considerations and/or proposed changes
in approved operations.
5. Map of minedout cavities and identification of any
subsidence areas.
Prior approval is necessary for any change made to
informational submittals, monitoring, or approved
operations.
4.3-2