REP43525

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 3/28/1997
• Doc Name: FAX COVER
• From: WRIGHT WATER ENGINEERS INC
• To: DMG
• Permit Index Doc Type: MINE INFLOW REPORTS
• Media Type: D
• Archive: No

MAR. -28' 97 (FRI) 15:20 WRIGHT WATER TEL:[phone] P. 005
Dave Berry and Mike Boulay
March 28, 1997
Page 4
We asked Dave and Mike if they have topics that are of particulaz concern. Dave Berry replied
by describing the following three topics:
1. MCC's Utilization of Surr~ts-MCC is required to obtain approval prior to using these
sumps. CDMG still has not approved these sumps. Approval is still necessary. Prior to
approval, the environmental impacts need to be defined and reviewed. WWE asked Dave if
there is further technical analysis that CDMG believes is necessary on this subject, and he
replied that, at this time, the scope of the technical analysis appeazs to be adequate. He
further added that his immediate concern is regarding the administrative issues.
2. Salinitv/T'DS-WWE's analysis of this topic will be carefiilly reviewed by CDMG. WWE
should ensure that the analysis ties to the Cumulative Hydrologic Impact Analysis (CHIA).
As discussed above, the annual salinily/TDS loading analysis based on 1996 data does nor
exceed the value reported in the 1991 ClilA.
3. Annual Hydrology Reports-Dave reiterated that it is essential for MCC to be submitting
consistent and reliable groundwater and surface water quantity and quality data. WWE
replied that we were recently asked by MCC to prepaze the next AHR and that w ~ will keep
CDMG's concerns in mind during preparation of the document.
Regazding the topic of CDMG's responsibility and liability relative to permitting the West Ells
Mine,.Dave Berry expressed concern that CDMG could hear concerns and complaints from
other parties at any time. For example, he noted the concerns expressed by representatives of
the Bear Mine, relative to inflows that they were experiencing. Gary Witt reviewed the details
of WWE's analysis of impacts to the Beaz Mine. Dave expressed concern about slope stability
downgradient from the Beaz Mine. At that point, Jon Jones mentioned that Rich Dunrud and
John Rold had initially expressed concern about the same subject. Messts. Rold and Dunrud
eventually concluded, however, that with an outflow from the West Elk Mine to the Beaz Mine
of only 25 gpm, slope stability would likely not be a concern. By the same token, however,
WWE (along with Messrs. Rold and Dunrud) have recommended that MCC check to see if there
is evidence of new springs emerging down gradient from the NW Panel sealed sump.
Dave and Mike both expressed interest in when use of the NW Panel sealed sump was first
proposed by MCC. WWE responded by stating that the topic had been reviewed at the
November 26, 1996 meeting at CDMG. We also indicated that, to our knowledge, the topic was
first presented to WWE at approximately the time that MCC asked us to undertake an update of
the PHC analysis for the mine-probably some time in October or November of 1996.
CDMG was particularly appreciative of the "Mine Water Management Schematic" (Figure 3 of
the Technical Memorandum). Mike and Dave indicated that this Figure represents the
components that should be included in MCC's water balance. A discussion followed regazding
where the quantification of the water balance tettns for 1996 should be addressed. It was agreed
that the AHR is the most appropriate location.