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-'- Upon notification by the Division of this application deficiency, Peabody analyzed for those parameters and submitted the data to the Division. This data indicates no suspect levels for any of the parameters (see Appendix A to this document). In order for the application to be adequate, however, Peabody must include a thorough analysis of this data relative to any potentially acid or toxic properties of the overburden. To be in compliance with Rule 2.04.6, the following stipulation is necessary: SENECA COALS LTD. MUST SUPPLY OVERBURDEN ANAL]'SIS WITHIN 60 DAYS AFTER PERMIT ISSUANCE FOR THE FOLLOWING PARAMETERS FOR DRILL HOLES REPRESENTATIVE OF THE ENTIRE PERMIT AREA AND DESCRIBE THE EFFECT OF THESE ANALYSES UPON THOSE ALREADY INCLUDED IN THE APPLICATION: A) TOTAL COMBUSTIBLE SOLIDS B) TOTAL NON-COMBUSTIBLE SOLIDS C) ARSENIC (As) D) BARIUM (Ba) E) TOTAL CARBONATE (C3-2) F) CHLORIDE (CI) G) FLUORIDE (F) H) MAGNESIUM (Mg) I) POTASSIUM (K) J) SULFUR: a PYRITIC-SULFUR ~ SULFATE-SULFUR $ ORGANIC-SULFUR Upon acceptance of these stipulations, the applicant will be in compliance with 2.04.5 and 2.04.6. V. HYDROLOGY - SURFACE WATER The Seneca II mine is located within the drainages of Little Grassy Creek, Grassy Creek, and two unnamed tributaries of Fish Creek. These drainages are part of the Yampa River Basin in northwest Colorado, which Ii es within the Upper Colorado River Basin. Fish Creek lies approximately 4 miles East of the Seneca .II mine. Less than 1.22 square miles of Fish Creek Basin, approximately 1.5~ of the basin, will be disturbed by mining. 3.1 square miles within the Grassy Creek Basin, approximately 12.4 of the basin, will be disturbed. The entire area disturbed by mining comprises 0.3~ of the Yampa River Basin. A complete description of the hydrology is found in Volume III, Tab 7 of the application. WATER QUALITY Water quality data from the Fish Creek monitoring stations is tabulated in the application.