PERMFILE62404

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: SURFACE WATER QUALITY INFORMATION
• Section_Exhibit Name: TAB 07 APPENDIX 7-4A PART 3
• Media Type: D
• Archive: No

b' Peabody Western
> Paradox Hydrology System
~ Water Quality Statistics
A
Sample Point: NPDESB
Location:
Elevation: 7015.00 Uncensored Data Censored Data
No. of No. of
Obs Mean St.DV. Mirt Max Obs Min Max
Laboratory Parameters
Cation Anion Balance PERCENT 3 - . 70 2.52 - 3. 50 1 .90
Sar RATIO 3 .29 .02 . 28 .31
Solids, Dias. (Galt) MG/L 3 2636 .67 120.14 2520. 00 2760 .00
Sum Of Anions MEq/L 3 93. 20 1.81 91 .30 49 .90
Sum Of Cations MEQ/L 3 92 .60 2.15 40. 50 49 .80
Aluminum, Tot. Rec. MG/L 3 < .06 < .20
Arsenic, Tot. Rec. UG/L 2 1 .50 .71 1 .00 2 .00 1 < 1.00 < 1.00
Barium, Tot. Rec. UG/L 2 21. 50 2.12 20. D0 23 .00 1 < 20.00~ < 20.00
Cadmium, Tot. Rec. UG/L 3 < .50 < .50
Chromium, Tot. Rec. UG/L 3 < 20.00 < 50.00
Copper, Tot. Rec. UG/L 3 < 20.00 < 50.00
Iron, Tot. Rec. MG/L 11 .14 .09 . OS .38 1 < .03 < .03
Lead, Tot. Rec. UG/L 1 8 .00 8 .00 8 .00 2 < 1.00 < 5.00
Manganese, Tot. Rec. MG/L 2 .16 .16 . 05 .27
Mercury, Tot. Rec. UG/L 3 < .20 < .20
Molybdenum, Tot. Rec. UG/L 2 1 .50 .71 1. 00 2 .00 1 < 1.00 < 1.00
Nickel, Tot. Rec. UG/L 3 < 20.00 < 50.00
Selenium, Tot. Rec. UG/L 3 3 .33 3.21 1 .00 7 .00
Silver, Tot. Rec. UG/L 3 < .50 < .50
Zinc, Tot. Rec. MG/L 3 < ,02 < .OS
Tds Ratio ANAL,/CALL 3 l .ll .04 1 .08 1 .16
Conditions Specified: From 1/01/96 To 12/31/96...NPDS...Area=II