2005-09-07_REPORT - M1977403HR

• Permit No: M1977403HR
• IBM Index Class Name: Report
• Doc Date: 9/7/2005
• Doc Name: Annual Fee/Report/Map
• From: Idarado Mining Company
• To: DMG
• Media Type: D
• Archive: No

evaluation period will begin, and will continue for ten summer seasons.
During the evaluation period, Idarado will not irrigate or apply fertilizer
or other amendments to the tailings piles, except as provided in ¶¶ 14.3
and 14.4 of this RAP, Idarado may elect to terminate the evaluation period
for any tailings pile and continue management activities on that tailings
pile, in accordance with ¶ 14.1.4, and, upon the completion of such
additional management period, the 10-year evaluation period for such
tailings pile will begin anew in accordance with this paragraph.
6. Paragraph I5. ] is modified to read as follows:
15.1. Monitoring_Procedures. ]n August of each year during the
establishment period and the evaluation period for each tailings pile,
Idarado will sample the vegetation on the top surface and side slopes of
each tailings pile and on each test plot. All Telluride Tailings Piles and
test plots will be sampled during the same two-week period, and all Red
Mountain Tailings Piles and test plots will be sampled during the same
two-week period. The sampling will be conducted in accordance with the
methodologies set forth in Appendix E (Procedures for Vegetation
Monitoring). From this sampling, total cover, live vegetative cover, and
species diversity will be calculated in accordance with the procedures set
forth in Appendix E. Heavy metal concentration will also be determined
for the four most dominant grasses and the two most dominant forbs on
each tailing pile surface and side slope. On test plots, heavy metal
concentration will be determined for the four most dominant grasses and
the two most dominant forbs during the second growing season (1998), the
fifth growing season (2001), the tenth growing season (2006) and the
fifteenth growing season (2011). Heavy metal concentration will be
determined for one of each shrub species (woods rose, service berry,
snowberry, mountain ash and chokecherry) during the fourth growing
season {2001), the ninth growing season (2006) and the fourteenth
growing season (2011). Heavy metal concentration will also be
determined for the four most dominant grasses and the two most dominant
forbs on test plots, at such time as a tailing pile segment or localized area
fails to meet revegetation requirements. Sampling results will be
calculated separately for each tailings pile "segment," as defined in ¶ 16.3
of this RAP. Pursuant to the active management activities described in
Section ] 4.1.4, Idarado may collect soil samples as necessary during the
establishment period Pram all or any segment of a tailings pile and analyze
the samples to determine if amendments and/or fertilization applications
are necessary to promote or enhance vegetative growing conditions. The
samples will be analyzed for pH, organic content, and nutrients or other
parameters determined necessary by Idarado. The rates of amendment and
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