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Table 1.Proposed Quarterly Sampling Suite
<br /> Surface Water Quality Standard,
<br /> t 17b, Domestic Water
<br /> Segment Included in Current Ralston Creek 17b 2018 Included in Current Supply-Drinking
<br /> Surface Water Groundwater Sample Water Standards
<br /> Anal to Units Sample Suites ? Acute Chronic Suite? CDPHE 2016
<br /> Metals Total
<br /> Aluminum µg/L Yes,Table 1 Yes,Table 2
<br /> Antimony µg/L Yes,Table 1 none none Yes,Table 2
<br /> Arsenic µg/L Yes,Table 1 and 0.02 - Yes,Table 2
<br /> Code 3
<br /> Boron µg/L Yes,Table 1 - 750 Yes,Table 5
<br /> Chromium III= Yes,Table 5(Mine
<br /> Chromium µg/L Yes,Table 1 50 - Pool Only,Sample ID=
<br /> RAW FEED
<br /> Copper µg/L Yes,Table 1 21.3 13.6 Yes,Table 2 1,000
<br /> Iron µg/L Yes,Table 1 - 1,000 Yes,Table 2 300
<br /> Lead µg/L Yes,Table 1 50 Yes,Table 2 50
<br /> Manganese µg/L Yes,Table 1 3,513.36 1,941.14 Yes,Table 2 50
<br /> Mercury µg/L Yes,Table 1 - 0.01 Yes,Table 2 Non-Detect
<br /> Molybdenum µg/L Yes,Table 1 none 150 No 210
<br /> Silver µg/L Yes,Table 1 4.7 0.17 Yes,Table 2 50
<br /> Thallium L Yes,Table 1 none none Yes,Table 2 2
<br /> Uranium µg/L Yes,Code 1 and 4,115.95 2,570.93 No 30
<br /> Code 3 USEPA MCL=30 USEPA MCL=30
<br /> Zinc µg/L Yes,Table 1 249.51 188.98 1 Yes,Table 2 5,000
<br /> Aluminum µg/L Yes,Table 1 Yes,Table 2 5,000
<br /> Antimony µg/L Yes,Table 1 none none Yes,Table 2 6
<br /> Yes,Table 5(Mine
<br /> Arsenic µg/L Yes,Code 3 0.02 --- Pool Only,Sample ID= 100
<br /> RAW FEED
<br /> Boron mg/L Yes,Table 1 --- 0.75 No 750
<br /> Chromium mg/L No Chromium VI j Chromium III=110.58 No 100
<br /> 16 Chromium VI=11
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