GENERAL55958

• Permit No: C1981014
• IBM Index Class Name: General Documents
• Doc Date: 2/8/1993
• Doc Name: Midterm Review Findings Document
• Permit Index Doc Type: Findings
• Media Type: D
• Archive: No

Engineer's reeponee to the June 26, 1991, well permit filing, and provide
a copy of the augmentation plan to show protection of the rights of
present users of surface and ground water (2.05.6(3)(a)(ii)).
Hydrologic Balance - Rules 2.04.5, 2.04.7, 2.05.3, 2.05.6!3) and 4.05
12. Many of the wells in the monitoring plan are within the subsidence angle-
of-draw, and could suffer damage. Modify the ground water monitoring plan
in Exhibit 25 to record the total depth of the wells on an annual basis
(Rules 2.05.6(3)(b)(iv) and 4.05.13(1)(d)(i)).
13. Please discuss EFCI's progress in acquiring flow samples from Magpie Creek
and Second Alkali Creek in reeponee to Stipulations 14 and 15, which were
added ae permit conditions with the approval of Permit Revision 1, March
11, 1991. Monitoring of any flow in these drainages appears to be
warranted by the wording in the Findings document. Describe your
understanding of the plan and discuss sampling efforts during
precipitation events since the issuance of the Permit Revision.
14. Please submit designs for Magpie Creek channel in accordance with
Stipulation 16. The designs shall include plan views, longitudinal
profile, cross-sections and channel protection details in order to meet
the requirements of Rule 4.05.4(4).
15. Please update the hydrograph in Figure 4 on page 2.04.7-7 to show the last
four years of data in response to compliance with Rule 2.04.7(1)(a)(iii).
16. Modify the legend on figures 9 and 11 to accurately distinguish between
TDS and TSS (Rule 2.04.7(2)(b)(ii)).
Toneoil - Rules 2.05.3(51, 2.05.4(21 and 4.06
17. Review the topsoil handling plan on Table 31 page 2.05.3-60R. Analyze
1991 and 1992 topsoil salvage information from the waste pile to confirm
that salvage projections are being met (Rule 2.05.4(2)(d)). Provide
documentation of the analysis which was performed in response to this
request. Hodify predictions on salvage depth(s), if appropriate. Staff
reading of the plan suggests that topsoil will be removed from 36.2 acres
of the refuse pile footprint and replaced on only 34.2 acres. if
anything, the replacement acreage should be greater to accommodate the
increased surface area from the side elopes.
18. Please update the facilities map to show the topsoil stockpile on the top
of the refuse pile (M-4). In addition, if it has not already been done in
conjunction with TR-13, please put topsoil stockpile L-2 on Hap 13, the
Loadout Area Surface and Groundwater Hydrology Map.
Vegetation - Rules 2.04.10. 2.06.4(21(el and 4.15
19. Clarify the revegetation suttees standard for woody plants per Aules
4.15.7(2)(b), (c), and (d) and 4.15.8(7). The description on page 2.05.4-
27 alludes to both a census and a et atistical evaluation. In addition,
you may choose to clarify the definition of a shrub if this is nebulous to
you.
20. Update the Mine Plan, Map 17, to show actual mining in the last three
years as well ae EFCI'e plane for the remainder of the permit term (Rule
4.20.1(3)). We recommend this map be combined with the map submitted for
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