1999-06-18_HYDROLOGY - M1984049

• Permit No: M1984049
• IBM Index Class Name: Hydrology
• Doc Date: 6/18/1999
• Doc Name: REDUCED MONITORING FREQUENCY & PARAMETERS HOWARDSVILLE MILL PN M-84-049
• From: DMG
• To: CALCO INC
• Media Type: D
• Archive: No

DIVISION OF MINERALS AND GEOLOGY Site Name: Howardsville Mill
Hydrology Report-Baseline Conditions Permit No.: M-84-049
Monitoring site No.: G-2-Groundwater sample
Animas River: Aquatic Life Cold 1;Recreation 2;Agriculture. Monitoring Location: Down-gradient well between flood dike and tailings ponds.
PARAMETER UNITS LAB IDENTIFICATION NUMBER Average STANDARDS
1721 1818 1875 3081 3214 Aquatic Human Agriculture
Sample Date 06/24/97 08/17/97 10/04/97 06/30/98 09/27/98 5 quarter s
u Pump Pump NA
Inter rated/Grab Pump Pump
Gf P P
// N Surface Flow pfS N/A N/A N/A A /NA NA
Well HZO Depth ft 3.5 2 3.2 30 3.5 5
H std. units 5.95 5.88 5.6 5.14 5.57 5.63 6.5 - 9 5-9" 6.5 -8.5
2
ConductivityEC us/cm 394 41 7 20 229
323 7 35
N/ N N/A A
SS I T m / N/A N/A A N/A
•
TDS m 22/l 276 291 250 147 153 3
H C 8
Hardness aCO3 m ll 126 10 4 169 Z 56 108
7.Alkalini CaCO3 m /I 2 7 10 3 3 5
Ammonia NH3- Mgt[ <0.05 0.3 <0.01 0.41 <0.05 0.14 0.02 ? 0.5 ?
Chloride CI- m /I 2 3 2 5 12 5 250*
WAD Cyanide CN- m /1 <0.001 <0.001 <0,001 <0.001 <0.001 0.0000 0.005' 200 &0.2" 0.2
Nitrate NO3- m /I 1.5 1.2 1.1 1.2 1.1 1.2 10 100
Nitrite NO2- m /1 2 5 2 5 1 3.0 W.11 10
Sulfate SO4- m /I 170 220 170 1 135 110 161 250
0 0 0 0.0 01 0. 034
0.00 I 2 05 de S- m I 0.002 0.007
Sulfide
0 3 22 4 .1
+ 6 1/ 47.3 35.1 5
iu Ca m I Calcium
1 0.8 2.01
+ 1.76 .4/ 2.05 4.03
M m I Magnesium
Potassium K m I+ / 0.95 3 1.1 0.7 1 1.35
s'
Sodium Na m /I 7 15+ 2. 2.3 2.2 5.9 _
.4 7 Aluminum Al u /I 177 153 730 34 27 224.20 87 5000'...
Arsenic As u /l <5 <1 <t <1 1 0.20 150 1 50 100
Barium Ba u /I <1000 <1000 1000 2000 2000 1000 1000
< 75
Boron B u /l 5200 300 100 100 100 1120.00
Cadmium Cd u /l 14.1 11.9 11.4 14.8 10.2 12.5 1..1 5:::.,, 10
Chromium Cr+3, 6 u /l <50 <10 <10 <10 <10 0.00 11 50 100
Copper Cu u /l 11 18 <5 5 <5 6.80 12 1000 200
Iron Fe u /l <100 10 <10 <10 80 18.00 1000(t.rec.) 300' 5000
Lead Pb u /l 1 <1 <1 <1 4 1.00 4 50 100
Manganese Mn u /I 26 36 17 <5 51 26 1462 50" 200
Mercury Hg u /I 0.6 <0.1 <0.1 <0.1 <0.1 0.12 0.1 2 10
Nickel Ni u /I <100 43 <1 11 <1 10.80 96 100 N
Selenium Se u /I 6 <5 <5 <5 <5 1.20 17 50
Silver A u /I 0.1 <0.1 <0.1 <0.1 <0.1 0.02 0.32 50
Zinc Zn u /I 5690 7180 4000 5640 5204 5543 106 5000"
Standards for Aquatic Life are Chronic at 100 hardness. " CN Standards are for Free Cyanide.
Standards for Human Health with (')are Secondary Standards for drinking water.