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<br />8. BRL indicates that there is no winter monitoring/access for the majority of ponds. However, <br />the following pazameters were not provided for the required pond monitoring for the remainder <br />of the year: <br />• Quarterly flow and field parameters for second quarter, and annual water quality analysis <br />for Pond 3-6. <br />• Water levels for the fourth quarter for the majority of ponds, with the exception of Pond <br />89. <br />The Division notes that field parameters and analyses were reported for several ponds that are <br />not part of the required monitoring program including: Ponds 14-1, 14-3, and 11-8. <br />9. For future AHR submittals, it would be helpful if the baseline information was presented in the <br />AHR. This would provide a quick reference to baseline data and would allow for a simple <br />means for determining trends in water quality. The current format presents minimum, <br />maximum, and average values for the current monitoring year. It would be preferable if these <br />columns were replaced with baseline values. Please comment. <br />1998 Annual Subsidence Report <br />The text summary pazagraphs describing the mining involvement related to each of the wide-grid <br />subsidence monuments was cleaz, thorough and informative. The Division does have three <br />comments for this section: <br />10. The subsidence monitoring stations aze located on map No. 2-5, "Permit Term and Long <br />Term Mine Planning". Unfortunately the monuments are indicated in pale yellow, which <br />renders them effectively indiscernible. BRL should select a discernable color for the <br />subsidence monuments and revise the map accordingly. <br />11. The subsidence monitoring results aze tabulated within the report. The data tables contain <br />several obvious survey busts and/or calculation errors. Specifically, the tables for Station <br />16, Station DH55, and Station DH66 appear to contain errors. These busts aze referenced <br />within the report survey station summary pazagraphs for Stations DH55 and DH66. An <br />equivalent reference should be inserted into the Station 16 summary paragraph. In <br />addition, the data tables should be annotated as well in future reports. <br />12. A reference is made to Map 2-SA, which is stated to delineate the locations of the seven <br />Pitkin Mesa Pipeline monitoring monuments. However, no copy of Map 2-SA was <br />included within the report. Please submit a copy of this map. <br />