School: Rock Valley Community School
Date: 11/28/01 Time: 11:30
Water Conditions: Rising & turbid
Weather Conditions: Cloudy & Cold
Air Temperature: -3.24 degrees centigrade
Flow rate: .253 meters/second
River/Stream: Rock River
River Mile Marker:
Location: Rock Valley
Latitude deg. min. sec.
Longitude deg. min. sec.
Site: Boat ramp
Site Location or Address:

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Test 1
Dissolved Oxygen
DOday1 8.1 mg/L
% Sat 49
Q-Value 56
Weighing Factor 0.17
Total % 9.52
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Test 2
Fecal Coliform
colonies/100mL 70
Q-Value 48
Weighing factor 0.16
Total % 7.68
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Test 3
pH
units 7.15
Q-Value 90
Weighing factor 0.11
Total % 9.9
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Test 4
BOD
Dodays 8.1 mg/L DOday1-DOday5 4 mg/L
Q-Value 57
Weighing factor 0.11
Total %
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Test 5
Temperature Change
Temp (site1) -.10 degrees centigrade
Temp (site 2) 2.86 degrees centigrade
T= +2.76 degrees centigrade
Q-Value 82
Weighing Factor 0.10
Total % 8.2
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Test 6
Phosphate
mg/L 2.7
Q-Value 23
Weighing Factor 0.10
Total % 2.3
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Test 7
Nitrate
mg/L 9.9
Q-Value 52
Weighilng Factor 0.10
Total % 5.2
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Test 8
Turbidity
NTU's 68
Q-Value 30
Weighing Factor 0.08
Total % 2.4
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Test 9
Total Solids
mg/L 80
Q-Value 85
Weighing Factor 0.07
Total % 8.2
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OVERALL WATER QUALITY INDEX % 57.42 Medium

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