2021-05-06_HYDROLOGY - M1977344

• Permit No: M1977344
• IBM Index Class Name: Hydrology
• Doc Date: 5/6/2021
• Doc Name: Water Monitoring - Groundwater
• From: Arcadis
• To: DRMS
• Email Name: TC1
• Email Name: MAC
• Media Type: D
• Archive: No

Table E-1
Historical Groundwater Analytical Results from 1998 to 2001
2021 Groundwater Monitoring Report
Holcim (US) Inc.
Florence, Colorado

Analyte
Field Parameters
pH(pH units) 6.93 6.94 7.09 6.65 7.26 7.4 7.34 6.7 6.69 6.68 6.65 6.78 6.74 6.95 6.98 6.94 6.72 6.86 6.84 6.77
Conductivity (umhos) 1450 1520 3500 4170 3030 2850 3010 3310 3340 3840 3040 3320 3690 3290 3480 2420 3180 3580 3650 3740
Temperature (°F) 60 62 59 59 65.4 62 62.3 65.1 68.3 76.3 58.8 58.5 62 59 54.9 55.2 63.7 57.4 63.2 58.5
pH(pH units) 6.98 7 7.61 7.31 7.45 7.8 7.7 6.9 7.1 7 6.9 7 6.9 7 7.2 7.2 7.1 7 7.1 7
Conductivity (umhos) 3120 2750 4080 3390 3490 3380 3680 3330 3290 3520 3090 3110 3360 3310 3260 3490 3270 3170 3470 3380
Total Dissolved Solids 3229 3918 3660 3230 3220 3200 3560 3320 3310 3630 3110 3120 3480 3180 3320 3640 3290 3310 3630 3460
Chloride 29.7 32.6 57.9 26.5 29.4 28 33.4 25.9 27.6 31.5 27.2 26.5 30.6 27.6 27.7 31 28.1 26.4 30.1 28
Sulfate 1880 2080 2200 1900 1900 2300 2500 2050 2120 2330 1600 c 1670 c 1840 c 1720 c 1810 c 2040 c 1620 c 1800 c 1990 c 1740 c
Alkalinity 334 268 440 310 3280 b 2400 b 2840 b 312 221 256 333 224 254 331 288 259 337 270 268 399
Carbonate 0 0 1 U 1 U 1 U 1 U 1 U 5 U 5 U 5 U 5 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
Bicarbonate 419 326 537 378 4000 b 2930 b 3460 b 312 221 256 333 224 254 331 288 259 337 270 268 399
Fluoride 1.4 1.6 0.9 0.8 0.8 1.1 1.1 0.98 1.2 1.4 0.83 1 1.3 0.8 0.95 1.2 0.91 1.2 1.3 0.89
Ammonia-N 0.05 U 0.05 U 0.88 0.52 1.17 0.44 0.67 0.9 0.45 0.64 0.72 0.53 0.71 0.36 0.57 0.14 0.6 0.49 0.35 0.7
Nitrate 2.3 0.4 2.24 0.05 U 0.05 U 0.05 U 0.05 U 0.1 U 0.2 0.1 U 0.1 U 0.2 0.15 0.1 U 0.1 U 0.12 0.1 U 0.1 U 0.13 12.5 Q
Potassium 11 17 15 13 15.6 9.7 9.2 16 9.9 10 12.8 9.2 9.3 11.2 8.1 8.6 11.1 9 7.7 22.7
Sodium 188 112 315 144 185 131 134 164 164 143 161 158 136 177 200 148 186 173 135 198
Arsenic 0.005 U 0.005 U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.1 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U
Antimony 0.2 U 0.2 U 0.06 U 0.06 U 0.06 U 0.06 U 0.06 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U
Barium 0.1 U 0.1 U 0.44 0.05 0.02 0.03 0.02 0.018 0.028 0.022 0.023 0.021 0.018 0.02 0.028 0.017 0.021 0.02 0.013 0.019
Beryllium 0.01 U 0.01 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U
Cadmium 0.01 U 0.01 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U
Hexavalent Chromium 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U
Lead 0.005 U 0.005 U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U 0.003 U
Mercury 0.005 U 0.005 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U 0.0002 U
Nickel 0.019 0.036 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U 0.04 U
Selenium 0.005 U 0.005 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.005 U 0.019 0.005 U 0.0052 0.012 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.077
Silver 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U
Thallium 0.1 U 0.1 U 0.1 U 0.1 U 0.12 0.14 0.1 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U 0.01 U
Aluminum 0.53 0.56 6.52 1.6 0.54 0.05 0.05 U 0.1 U 0.1 U 0.1 U 0.18 0.1 U 0.1 U 0.1 U 0.2 0.1 U 0.14 0.1 U 0.1 U 0.1 U
Iron 0.05 U 0.05 U 5.45 2.14 1.69 0.03 0.36 3.6 0.69 1.2 1.5 1.7 0.9 1.1 1.6 0.54 2.9 2.3 0.67 2.7
Manganese 0.01 U 0.01 U 0.11 0.35 0.67 0.21 0.5 0.88 0.9 0.9 0.45 0.47 0.65 0.42 0.54 0.62 0.47 0.41 0.66 0.32
Magnesium 26.3 39.6 276 177 185 178 225 210 192 242 193 186 244 180 170 234 187 176 224 199
Calcium 198 379 333 457 456 495 517 491 480 503 467 490 538 417 422 491 437 455 477 436
2/8/2001
MW-8
9/11/1998 11/30/1999 5/5/2000 8/11/2000 11/7/2000
MW-8
5/21/2001
MW-5 MW-7 MW-5 MW-7 MW-7 MW-8 MW-9 MW-7 MW-9
Laboratory Results
MW-7 MW-8 MW-9 MW-10MW-9 MW-7 MW-8 MW-9 MW-7
Historical GW Data_04142021 Page 1 of 1