Laserfiche WebLink
COLORADO LEGACY LAND <br /> TABLE 213:SUMMARY OF SURFACE WATER ANALYTICAL DATA <br /> Surface Water Quality Standards <br /> Segment 17b, Ralston Creek Sample Location <br /> Parameter Units <br /> (CDPHE 2019)1 SW-AWD SW-NWRP SW-BPL SW-FBRG SW-ARH SW-LLHG SW-Weir <br /> Acute Chronic 07/13/2022 07/13/2022 07/13/2022 07/13/2022 07/13/2022 07/13/2022 07/13/2022 <br /> Thallium mg/L - - <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <br /> Uranium mg/L - - 0.00108 0.00456 0.00651 0.00852 0.0112 0.0123 0.0122 <br /> Zinc mg/L 0.249 0.188 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Metals-Total <br /> Aluminum mg/L - - <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <br /> Antimony mg/L - - <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <br /> Arsenic mg/L - 0.00002 <0.0002 <0.0002 0.00301 0.00286 0.0021 0.00144 0.00112 <br /> Boron mg/L - 0.75 0.035 0.033 0.114 0.114 0.11 0.094 0.09 <br /> Chromium III = 0.005 - <br /> Chromium mg/L <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Chromium IV= <0.016 Chromium IV= <0.011 <br /> Copper mg/L <0.0213 <0.0136 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <br /> Iron mg/L - 1 <0.06 0.335 0.1 0.093 0.092 0.174 0.221 <br /> Lead mg/L <0.05 - <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.00013 <br /> Manganese mg/L <0.05 - <0.01 0.031 0.013 <0.01 0.016 0.026 0.044 <br /> Mercury mg/L 3.513 1.941 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum mg/L - 0.15 0.00054 0.00127 0.00111 0.00144 0.00309 0.0041 0.00569 <br /> Silver mg/L 0.0047 <0.00017 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <br /> Thallium mg/L - - <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <br /> Uranium mg/L - - 0.00107 0.00437 0.00654 0.00781 0.0108 0.0111 0.0116 <br /> Zinc mg/L 0.249 0.188 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Radionuclides <br /> Gross Alpha pCi/L - - 0.93 2.8 6.5 14 7.6 7.5 4.2 <br /> Gross Beta pCi/L - - 4.5 4.9 4.1 1.4 4.2 6.4 4.9 <br /> Radium 226- Dissolved pCi/L - - 0.11 0.24 0.06 0.18 0.29 0.24 0.25 <br /> Radium 226-Total pCi/L - - 0.2 0.23 0.29 0.2 0.29 0.48 0.28 <br /> Radium 228-Total pCi/L - - 0.47 0.03 1.1 0.31 -0.58 0.23 0.21 <br /> Radium 226 + Radium 228-Total pCi/L - - 0 0 0.29 0 0 0.48 0 <br /> Notes: <br /> 1 Acute and chronic standards for cadmium,chromium III,copper,lead,manganese,nickel,silver,uranium,and zinc are calculated using an average hardness value of 163 mg/L as CaCO3. <br /> Bold and grey-shaded analytical results are detected above the criteria. <br /> B = Estimated concentration <br /> NO3= Nitrate <br /> NO2= Nitrite <br /> CaCO3=Calcium Carbonate <br /> PAGE 9 OF 17 <br />