2006-02-13_REVISION - M2004078

• Permit No: M2004078
• IBM Index Class Name: Revision
• Doc Date: 2/13/2006
• Doc Name: Fourth Qtr. 2005 Groundwater Quality Monitoring Results
• From: Civil Resources LLC
• To: DMG
• Type & Sequence: TR2
• Media Type: D
• Archive: No

TABLE 1A: OCTOBER 2005 LABORATORY RESULTS
Lupton Lakes Sand and Gravel Mine - Ft. Lupton, Colorado
Water Quality Monitoring Summary
Sample Date: 10/712005
Groundwater quality monitoring as required by the Division of Minerals and Geology Permit #M-2004-078
- Test Wells (CRMW)
..-.MCC--liy - Detetlion
Parameters Unils EDPFE a Limits 01 02 04 O6 07 40 41
Antimony -Total mglL _._..o:oog : ° 0.001 <0.001 <0.001 <0.001 <0.001 c0.001 <0.001 <0.001
Arsenic-Total mryL =,('n.`Qf:= 0.001 0.004 0.007 0.003 0.003 0.006 0.005 0.004
u Barium -Total mglL ~= - 0002 0.492 0.213 0.352 0.198 0.289 0.582 0.476
3 Beryllium -Total mryL ;=0;ooa,==~ 00002 0.005 0.0017 0.0023 0.0017 0.0018 0.0025 0.0033
~ Cadmium-Total mryL °0:005= 0.0001 0.0022 0.0012 0.0006 0.001 0.0014 0.0004 0.0022
c -
Chromium -Total mryL 0-1°~' 0.001 0.005 0.003 <0.001 0.004 0.001 0.004 0.002
p` Fecal Coliform mpN ~AB'SENT.. z <2 <2 2 2 2 <2 2

~
m
Fluoride 100 ml -_-~-- -
mryL _a,., -_
-
0.86
0.8
1.19
1.01
0.95
1
1.03
E Mercury -Total Total -v-~o:o02 ::~= 0 0002 0.0004 <0.0002 0.0002 <0.0002 <0.0002 0.0004 0.0004
a` Nitrate Nitrogen mryL T,r. `o:. ~:= - 26.09 18.67 6.38 26.85 27.98 16.8 12.36
Selenium-Total ~ -b;os-;,
mryL ' 0002 c0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002
Thallium -Total _
mryL - `- o.oo== 0 001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Chloride mryL -~-25fi~~" -- 136.9 155.5 95.3 125.8 128.2 105.6 104
~
a c ~ Iron -Total mryL 0:3=
.i - 10.33 24.56 1.721 7.427 4.566 0.871 7.379
Y _
c c m pH units -~esF' - 7.12 7.13 7.16 6.9 7.06 7.03 7.1
` 3
c Sulfate mryL =~sb~ - 194.4 203.7 150.9 220.3 189.9 173.8 176.4
r
Total Dissolved Solids mryL suo: -~ 994 1019 656 923 767 743 875
Bicarbonate mryL --- - _- - 313.8 372.6 231.4 249.2 164.5 215.3 324.5
Calcium -Total mryL - - 136.7 119.6 104 125.2 115.8 115.6 117
Carbonate mryL :---'°-._-=~ - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
C Magnesium -Total mryL - 31.6 36.8 21.1 25.9 27.7 20.5 26.7
::
E Nickel-Total mryL -mss=. 0001 0.05 0.037 0.028 0.03 0.048 0.007 0.045
'
m Oil&Grease mryL _': S <5 <5 c5 <5 <5 <5 <5
a Potassium -Total mryL ; ~~• - 15.8 9 B.d 10.8 21.2 14.6 9.3
~ Sodium-Total mryL - 133.5 162.6 77.6 144.9 79.4 97.2 118.8

- Sodium Atlsorption Ratio units =-; ~::
~ - 2.7 3.3 1.8 3.1 1.7 2.1 2.6
Q Total Alkalinity "~_
~'~.-~--
a - 257.2 305.4 189.7 204.3 134.9 176.5 266
C
CW
m
L
~"-°`

Total Hardness ry
as
~P
~=
-
471.5
449.8
367.2
419.2
403
393.6
402
cocoa
Total Suspended Solitls mryL - - s 10400 4800 2864 4880 4980 4369 5533
Turbidity NTU = 0.01 1490 818 510 660 688 396 939
Secondary Drinking Water Standartls -Suggested Limits by GDPHE. The secondary maximum contaminant levels are not
enforceable, but are intended as guidelines.
'Laboratory results shown in BOLD exceed MCL or suggested limits.