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Lupton Lakes Sand and Gravel Mine • Ft. Lupton, Colorado Water Quality Monitoring Summary Sample Date: April 19, and 30, 20D7 Groundwater quality monitoring as required by Me Division of Minamis and Grmbgy Permit i!M-2004-076 Test prapoae4 Wells IImIt50 y DatacOOn B4sellm Parameters Units CDPHE''' umaa Lweb CRMW-0t CRMW-02 CRMW-01 LRMW-0a CRMW-09 CRMW-7fi LRMW-H g Arsenic-Total mryL o.01 0.0044 0.03 0.918 - 0.923 00078) -^ - U ~'; Fecal COlilerrtl tOQ ml ABSENT 2 1 j U 2 2 U U U e°` Y Fluoride mgt 4 0.09 1c 1.18 0.96 1.78 7.29 0.92 1.1 1.17 z Mercury mgt o.00T o.00a021 0.0002 0.00010 J - 0.00027 0.000052 J ---- - U o Nitrate-N mgt to o.a4 29.9 31.80 43.08 4.61 74.98 U 15.48 31.31 Chloride mgt 2s0 0.07 tsa 14108 147.33 88.78 97.43 252.68 177.15 124.51 r; Iron-Dissolvetl myL 0.3 ooos O,n 0.028 0.052 0.042 0.068 0.068 0.047 0.030 e a_ pH units as -- - 6.98 fi.97 7.27 7.10 7.12 7.26 7.08 ° ~ Sulfate mgt Tso o.ot 237 225.45 257.25 143.4 198.74 25521 242.62 223.0 L c Total Dissolved Solitls soo s to7s 1152 1250 812 738 7298 842 1131 Bicarbonate myE - 0.1 394 302.1 252.4 186.8 162.8 603.2 342.1 297.9 E Calcium -Dissolved mgh ---- on 139 141.4 147.0 74.3 84.8 214.0 735.0 139.8 E Carbonate myt --- o.t 0 U U U U U U U a Magnesium-Dissolved mgt ---- o.t 44 32.2 33.5 18.7 19.2 47.3 32.3 35.8 d Sodium-Dissolvetl mgt -- o.t 1s0 787.7 169.9 81.7 178.4 788.6 144.8 748.3 Q Total Suspended Solids m9n. s sots 7820 7337 5393 900 82 2172 278 = , Total Phosphate mgh O.aow 3.ro0o 1.2 8,0 0.87 8 0.48 B 0.24 B e Turbitlity NTU - O.Ot -- 991.00 488.00 2920 524.00 52.00 1761.00 304.00 Total Exlmctaole Hydmcar0om 0.03T 0 U U U U 2,4-D yg/L - ale - U - U U -- U ~ Dalapon yglL xoo o4a - U - U U - U a Dicamba yg/L O.to - U - U U - - U = Dkhlorprop V9/L Os21o5 040 -- U U U -- U a Dinoseh yg/L 7 0.24 - U - U U - - U C MCPA V9/L - 150 - U - U U -- - U s MCPP y9/L --- 46 - U -- U U -- - U s 2,4,5-T yg/L ---- 0.20 -- U - U U --- -- U (I 2,4,STP Silvez IL o.25 U U U U Methyl-t-butyl ether yg/L - 0.25 - U - U U - U S Benzene yyL s o.16 - U - U U - - U Toluene y9/L Loco a.v - U - U U -- - U e d > Ethylhenzene yg/L 700 o.t6 - U - - U U -- - U D X lenes total V L rpo0m room 0.19 U U U U Altldn yg/L - 0.0059 - U U U -- U a-BHC yg/L -- oms3 -- U - U U - U b-BHC y9/L - oaoa7 - U - U U -- - U d-BHC yg/L --- D.p95e - 0.0070) - U U -- - U g-BHC D9/L - aD069 - U = U U -- - U CMOrdane (technical) yg/L oaoloz 0.14 = U U U U ~ g 4,4'-DDD yg/L o.t5 o.aon - U - U U -- - U E 4A'-DDE yglL o.t o.ao75 - U - U U - - U V 4,4'-0D7 pg1L 0.1 0.015 U - U U -- - U Dleklrip yg/L 0.002 0.0063 - U - U U --- U t Endosulfan l yg/L 42 Oo059 -- U - U U - U r Endosulfan II ygfL 4T O.OO70 - U -- U U --- - U x Endosulfan sulfate V9/L a oaos7 --- U - V -- V 2 Entldn yglL z o.ao7s - U - 0.0075J,COL U -- - U O Enddn altlehyde y9IL za aooee --- U - U U -- U Heptachlor D9/L 0.008 1o 09 O.OOn -- U -- U U -- -- U Heptachlor epoxide y9/L o.004MaT O.oorS -- U -- U U -- -- U Methoxychbr y9/L 3s to 4o O.Ot3 --- U - U U - U Toxa hens y L o.032ro3 oa7 U U U U Secondary Drinking Water Standards -Suggested Limfls by CDPHE. The secondary maximum contaminant levels are not enforceable, but are intended a5 9uidel(nes. ' Colomdo Department of Pualic Health and Environment (CDPHE) maximum contaminant level (MCL) for Drinking Water :Colomdo Depadmem o! Public Heaah and Environment (CDPHE) standams for grountlwater -Laboratory rssults shown In RED HIGHLIGHT exceed MCL or suggested limits J indicates that the resu8 is estimated. Result is less than the laboratory reporting limit. U indicatetl that mere was no tletection of the pannaler at the listed detection limit. COL indicates More than 40% RPD between Ddmary and con(umation results. The lower of the two results is reported. B intlicates method blank contaminantion. The associated method blank contains the target analy[e al a reDOrta61e level. O indicates elevated reporting limit The limd is elevated due to high analyte levels.