2023-12-21_PERMIT FILE - C1981044 ‎(7)‎

• Permit No: C1981044
• IBM Index Class Name: Permit File
• Doc Date: 12/21/2023
• Doc Name: Evaluation of Soil Conservation Service Range Data
• Section_Exhibit Name: Tables 01 through Table 42
• Media Type: D
• Archive: No

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• Table 24
SUMMARY Of WATER QUALITY DATA - YAMPA RIVER (Y-2) UPSTREAM - Part 2
Parameter Mean Std. Dev. Max. Min. Units No. Period
Barium Total <190.909 30.151 200.000 100.000 ug/L 11 6/81-12/83
Cadmium Total <5.000 0.000 <5.000 <5.000 ug/L 20 6/81- 3/85
Chromium Total-Total <20.000 0.000 20.000 <20.000 ug/L 11 6/81-12/83
Lead Total <28.000 16.415 <70.000 <20.000 ug/L 20 6/81- 3/85
Mercury Total <0.775 0.255 <1.000 <0.500 ug/L 20 6/81- 3/85
Selenium Total <2.181 1.250 5.000 <1.000 ug/L 11 6/81-12/83
Silver Total <20.000 0.000 <20.000 <20.000 ug/L 9 3/.84- 3/85
SECONDARY
Copper Total <20.000 0.000 20.000 <20.000 ug/L 20 6/81- 3/85
Zinc Total <16.600 25.954 120.000 <5.000 ug/L 20 6/81- 3/85
Iron Total 784.545 716.863 2090.000 20.000 ug/L 22 6/81- 9/85
Manganese Total <76.111 106.170 470.000 <20.000 ug/L 18 6/81- 9/85
TRACE METALS
Aluminum Total <509.090 582.158 2200.000 <200.000 ug/L 11 6/81-12/83
Boron Total 146.363 73.112 290.000 60.000 ug/L 11 6/81-12/83
Molybdenum Total 190.909 30.151 200.000 <100.000 ug/L 11 6/81-12/83
Nickel Total <23.636 9.244 50.000 <20.000 ug/L 11 6/81-12/83
Thallium Total <2.000 0.000 <2.000 <2.000 ug/L 9 3/84- 3/85
NUTRIENTS
Nitrogen Ammium-Total <0.122 0.078 0.270 <0.020 mg/L 11 6/81-12/83
Nitrogen N03+N02 <0.231 0.318 0.970 <0.020 mg/L 11 6/81-12/83
Phosphate Total-Total <0.110 0.138 0.270 <0.030 mg/L 3 6/81-12/81
Phosphate Ortho-Total <0.036 0.030 0.100 <0.010 mg/L 8 3/82-12/83
ORGANICS
Cyanide Total <0.002 0.000 <0.002 <0.002 mg/L 16 6/81- 3/85
U = MICRO
All parameters total unless otherwise indicated.