HYDRO28482

• Permit No: M1999002
• IBM Index Class Name: Hydrology
• Doc Date: 2/9/2000
• Doc Name: FINAL AREA PERMIT VIC ISSUED TO AM SODA P 1-82
• Media Type: D
• Archive: No

D.MONITORING, RECORD KEEPING, AND REPORTING OF RESULTS
MONITORING•
The Permittee is required to carry out the activities
described in the monitoring plan. The data must be reported
and maintained as provided in Section II D.4 of the Permit.
The 4t^ Revision of the Water Monitoring Plan, dated
December 23, 1999, has been incorporated into the Permit as
Appendix I.
The water Monitoring Plan includes ground-water monitoring,
for the Piceance Site (solution well field and upper plant)
and the Parachute Site (lower plant, which is not covered by
the Permit). It also contains a process monitoring section,
(found in Section 4.0 of the Water Monitoring Plan, Appendix
I) for mining operations at the Piceance Site.
As specified in Appendix I, the ground water and surface
water monitoring programs in this Permit includes two
monitoring periods: the baseline period, and the first five
(5) years of commercial operations. Established trends will
be developed prior to start-up of commercial operations.
For the purpose of this Permit, at least five (5) quarters
of additional baseline data must be collected prior to
commencement of injection. This baseline period will start
from July 1999. The baseline monitoring schedule for ground
water monitoring wells includes monthly water level and
water quality monitoring for a period of five (5) quarters
prior to the start of commercial solution mining operations.
Piceance Creek shall be monitored in accordance with current
U.S. Geological Survey (USGS) monitoring schedule for this
stream, as provided in Section 3.0 of the Water Monitoring
Plan, Appendix I. Spring and seep monitoring shall be
conducted twice per year, corresponding to high flow
(spring) and lower flow (fall) conditions for the baseline
period and during solution mining operations.
Subsequent monitoring plans applicable to the 5-30 year
phase of commercial mining will be developed prior to mining
in those areas. Any changes in the monitoring program will
be incorporated into the Permit by modification of the Water
Monitoring Plan, unless a Permit modification is required.
Modification of the Permit will only be required if the plan
has undergone significant changes. Modification of the
Water Monitoring Plan may also be required based on the
results of on-going monitoring or as appropriate, in
EPA FINAL Area Permit No. C03858-00000
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