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1993, 1994 AHR Responses (#2) <br />February 6, 1997 <br />Page 2 <br />will be addressed in the AHRs for the 1996 and 1997 Water Yeazs. The request for mine <br />inflow data in future AHRs will be addressed in the responses to the Division's request for <br />a revision to improve the hydrologic monitoring program (letter also dated December 9, <br />1996). <br />1994 AHR <br />4. MCC indicated and the data supported the position that Sylvester Gulch, Upper Dry Fork <br />and Lick Creek flume experienced no flow during the third sampling event. As a <br />consequence, iron and manganese were not monitored at these sites, nor were pH, specific <br />conductance, TSS and TDS, as there was no water to sample. Laboratory parameters <br />were analyzed at these sites when there was water with which to take a sample. <br />These three sites aze located on ephemeral or intermittent drainages. The objective of <br />sampling three times during the year was to collect representative samples during high, <br />normal and low flow periods. A null result, such as a no flow reading, is as much of a <br />result as flow and water quality readings when there is flow. Some yeazs, a late snowmelt <br />or late summer storms may result in flow which could be sampled in these drainages and <br />would be representative of the yeaz's conditions. <br />The request to move the third sampling round up to July or August will be addressed in <br />the responses to the Division's request for a revision to improve the hydrologic <br />monitoring program (letter also dated December 9, 1996). <br />6. The Spring and Seep section of page 4 had been revised, but it appears that responses to <br />the original comment No. 6 were not included. Pages 3 and 4 and Table 1.2-1 on page 4 <br />have since been revised to reflect the monitoring requirements, and to document the <br />supplementary data which was included in the AF1R. <br />11. The TSS was corrected when the laboratory report was reviewed in October. The results <br />reflect muddy conditions within the well, which resulted in extremely elevated TSS and <br />iron concentrations. <br />All data from the laboratory reports are summa.:~ed on the tables presented in the AHR. <br />No additional or relevant information is provided in these lab reports or the chain-of- <br />custody forms; and therefore, have not been provided. MCC has rechecked the tables in <br />the AHIt to verify that data from the laboratory reports has been transferred correctly. <br />Although, the data sheets and the chain-of-custody forms are not included, they are <br />available for your review at the mine offices. <br />