2019-05-03_HYDROLOGY - M1977344 - Laserfiche WebLink

Home Browse Search

Table E-3 /�RCJ�D I S I' Design natural Groundwater QualityData for Monitoring Wells MW-7 through MW-13 2008 through 2010 builtafor set and 9 9 9 built assets 2019 Groundwater Monitoring Report Holcim (US) Inc. Florence, Colorado ! Field Parameters MCL MW-7 MW-8 MW-9 MW-11 MW-12 MW-7 Compliance MW-7 MW-12 MW-13 MW-13 MW-13 DUP MW-13 MW-13 MW-7 MW-12 MW-13 Standards pH(std.units) 6.5-8.5b 7.95 6.97 6.96 7.11 6.93 6.5-8.5a 9.21 7.63 7.99 7.01 NA 6.95 7.00 8.41 7.12 7.24 Conductivity(mS/cm) NA 2058 3095 3361 3204 3764 NA 1.109 3.231 2.900 3.215 NA 2.934 2.7 1.309 3.974 3.300 Temperature(°C) NA 17.63 15.61 17.33 18.80 18.72 NA 17.3 20.9 14.3 16.9 NA 13.1 13.90 16.4 15.8 13.2 Laboratory Results Alkalinity NA 458 352 239 198 348 NA 581 331 379 409 410 -- -- -- -- -- ! Chloride 250b 37 31 33 37 36 NA 42 36 29 29 30 -- Fluoride 2.0` 0.80 0.9 1.1 0.7 3.4 NA 1.1 3.6 0.8 0.9 0.9 Hardness,as CaCO3 NA 961 1830 2110 1960 2540 NA 148 2620 2140 2140 2130 -- -- -- -- -- Nitrate as N 10.0a 0.03 B 0.04 B 0.16 0.24 0.06 B NA 0.05 B 0.05 B 0.08 B 0.08 B 0.03 BNitrogen,ammonia NA 0.98 0.75 0.15 B 0.31 B 0.74 NA 1.23 0.27 B 0.28 B <0.05 0.06 B Total Dissolved Solids 1.5 x bkg 1940 3190 3570 3410 4030 3918 720 3990 3660 3620 3590 3,630 3,470 720 3960 3300 Sulfate 250b 850 1730 1840 1980 2300 2080 35 2300 2000 1900 2000 1,900 1,800 4 B 2400 2000 �. Aluminum(total) 5.0` 5.97 0.17 B 1.17 3.11 21.70 NA 9.26 23.1 7.36 9.85 11.8 -- -- -- __ -- Arsenic total 0.055 0.0027 0.0010 B 0.001 U 0.0009 B 0.0033 NA 0.0027 0.006 0.005 0.003 B 0.004 B -- -- -- Calcium(dissolved) NA 202 438 458 439 477 NA 24.2 488 492 491 487 -- -- -- -- -- ' Calcium(total) NA 206 444 458 439 474 NA 46.1 525 539 524 523 -- -- -- -- -- Iron 0.3b 4.18 0.54 1.85 3.17 14.40 4.5 0.02 U 0.08 0.04 B 0.07 0.22 <0.02 <0.02 0.78 0.25 0.11 Magnesium(dissolved) NA 111 178 235 209 329 NA 21.4 341 222 221 223 -- -- -- -- -- Magnesium(total) NA 112 180 232 208 323 NA 26.5 726 225 195 197 -- -- -- -- -- Manganese(total) 0.05b 0.085 0.196 0.317 0.324 0.623 0.88 0.105 0.673 0.13 0.26 0.24 0.113 0.056 0.019 B 0.586 0.018 B Potassium total NA 10.4 10.9 9.3 13.0 18.8 17 7.2 20.3 11.9 11.8 12.4 10.3 11.0 5.6 13.5 9.3 Selenium(total) 0.02° 0.0005 0.0007 0.0005 B 0.0030 0.0023 0.02d 0.0008 0.0027 0.139 0.0335 0.0406 -- -- -- -- -- Sodium(total) NA 226 207 199 209 221 226 236 156 249 193 198 225 199 228 186 164 N otes: ' All units are in mg/L unless noted otherwise. Bolded values-Screening level exceeded. B-Analyte concentration detected at a value between Method Detection Limit and Practical Quantitation Limit. bkg-Background. MCL-Maximum concentration limit. NA-Not available. U-The analyte was analyzed for,but not detected.Detection limit is numeric value shown. Multiple screening levels present in some instances due to proposed background standards for MW-7. aDRMS-approved Numeric Protection Levels for MW-7. bMCL source:Table 1 Human Health Standards,Regulation 41. °MCL source:Table 2 Secondary Drinking Water Standards,Regulation 41, dMCL source:Table 3 Agricultural Standards for Groundwater,Regulation 41. 'MCL source:Table 4 TDS Water Quality Standards,Regulation 41. Historical GW Data_04102019 Page 1 of 1