HYDRO29057

• Permit No: M1988112
• IBM Index Class Name: Hydrology
• Doc Name: TABLE OF CONTENTS
• Media Type: D
• Archive: No

BATTLE MOUNTA/N RESOURCES INC./BATTLE MOUNTA/N GOLD COMPANY
SAN LUIS PROJECT
FACILITY NUMBER: CO-0045675, COSTILLA COUNTY
Appendis A
Comparison of Wastewater Source Concentrations and Permit Antidegradation-Based Limitations
Analy[e Name
mg/I
um. dissolved
ua, total
dissolved
dissolved
dissolved
im, dissolved
im, dissolved
dissolved
total
,WAD
Hardness, Total
Iron, dissolved
Iron, total.
Lead, dissolved
Manganese, dissolved
Manganese, total
Mercury, dissolved
Nickel, dissolved
Nitrate-Nitrite. as N
pH (s.u.)
Selenium, dissolved
Silver, dissolved
Sulfate
eramre (" F)
dissolved
Pit Backfdl Monitoring Alluvial Pumping Wefts
Mean /Maximum Mean /Maximum
0.208 / 0.798
-/-
0.006 / 0.042
0.021 / 0.099
<0.1 / <0.1
0.004 / 0.007
13.7 / 34.3
0.001 / 0.002
0.049 / 0.279
<0.01 / <0.01
<0.01 / <0.01
4.98 / 5.56
-/-
0.064 / 3.21
-/-
0.001 / 0.003
5.582 / 9.23
-/-
<0.0001 /<0.0001
0.006 / 0.04
-/-
0.0448 / 0.276
-/-
0.0070 / 0.019
0.046 / 0.158
<0.1 ! <0.1
0.00062 / 0.003
14.57 / 34.3
0.0006 / 0.002
0.020 / 0.232
<0.01 / <0.01
<0.01 / <0.01
3.95 / 6.32
-/-
2.54 / 12.57
-/-
0.0006 / 0.003
5.525 / 10.89
-/-
<0.00001 / <0.0001
0.0072 / 0.018
-/-
6.69 / 7.24
0.002 / 0.005
0.0002 / 0.0003
721.5 / 920
-/-
1305 / 1642
9.25 / 10.5
0.023 / 0.163
6.68 / 7.07
0.00278 / 0.013
0.00012 / 0.0006
800.91/ IIL10
<I/<I
1437.06 / 1832
9.08 / 10.3
0.56 / 3.3
Seep/Surface Water
Collection System
Mean /Maximum
0.014 / 0.071
<0.400 / <0.400
0.004 / 0.016
0.020 / 0.030
<0.10/ <0.10
0.0005 / 0.0010
10.3 / 17.2
<0.0010 / <0.0010
0.0005 / 0.018
<0.010 / <0.010
<0.010 / <0.010
4.1 / 4.3
863.2 / 2946.3
0.023 / 0.048
0.065 / 0.130
0.0005 / 0.001
2.44 / 3.03
2.51 / 3.96
<0.00001 / <0.0001
0.001 / 0.004
1.3 / 3.2
7.3 / 7.5
0.0005 / 0.003
0.0001 / 0.0002
583.8 /604.3
-/-
1014 / 1066
6.5 / 9.9
0.012 / 0.016
Permit Limits Establish
400 gpm /250 gpm / 110 gpm Petmit
(OOIa / OOIb / OOIc) Limitation ?
0.087 / 0.087 / 0.087 Yes
0.65 / 0.90 / I.8 Six Times Analysis
0.020 / 0.027 / 0.050 Yes
No[ Applicable No-No[ Applicable
0.37/0.49/0.93 No
0.00039/ 0.00053/ 0.00099 Yes
122 / 169 / 331 No
0.0063 / 0.0086 / 0.016 No
0.0040 / 0.0053 / O.OI O Yes
Not Applicable No-No[ Applicable
0.005 / 0.005 / 0.005 Addi[ional Analysis
2.1/2.7/4.7 Yes
Not Applicable No-Not Applicable
0.30 / 0.30 / 0.30 Yes
I.0/I.0/I.0 Yes
0.0012 / 0.0015 / 0.0025 Yes
0.050 / 0.050 / 0.050 Yes
1.1/1.6/3.1 Yes
0.00001 / 0.00001 / 0.00001 Six Times Analysis
0.031 / 0.043 / 0.085 No
Nitrate: 5.1 / 6.9 / 13 Six Times Analysis
Nitrite: 0.050 / 0.050 / 0.050 Six Times Analysis
6.5 - 9.0 (WQS) Yes
0.0040 / 0.0053 / 0.0095 Yes
0.00003 / 0.00003/ 0.00003 Yes
205 / 283 / 550 Yes
0.0021 / 0.0030 / 0.0059 Six Times Analysis
Not Applicable No-Not Applicable
Not Applicable No-Not Applicable
0.037 / 0.051 / 0.098 Yes
As indicated in the permit application, the sampling periods are generally:
West Pit Baekf~[! Montoring = /-241999 to 6-29-1999
Surface Water Collection System (Seeps) = 1428-1998 to 422-1999
Alluvial Pumping (Curtain) Wells = 12-t8-1998 to 6-23-/999