4,640
815
410
200
50
74
Coliscan Easygel
CFU/100 ml
E. Coli Bacteria
9,500
60
363
2.0
10
1.0
13.6
240
9.3
65.1
Max value
0.5
0.3
0.2
0
80
IOWATER Field
Kit
mg/L
Orthophosphorus
225
180
120
80
38
Field Test Strip
mg/L
Total Alkalinity**
7.9
7.5
7
6.5
80
IOWATER
Test Strip & Field Meter
pH units
pH
10
8.7
8
1
80
IOWATER Field
Kit & Field Meter
mg/L
Dissolved Oxygen
1,100
700
488
80
Lab Analysis
CFU/100 ml
Fecal Bacteria
58
28
19
11
38
IOWATER
Transparency Tube
Centimeters
Transparency**
69
48
29.5
62
IOWATER
Test Strip
mg/L
Chloride
2
2
1
0
80
IOWATER
Test Strip
mg/L
Nitrate-N
0.2
0
0
0
77
IOWATER
Test Strip
mg/L
Nitrite-N
57.9
54.9
53.1
50
79
Thermometer – Field
Degrees F
Water Temperature
75th 
percentile
50th 
percentile
25th 
percentile
Min Value
# of Samples
Method
Unit
Scott County Snapshot Sampling Results – October 8, 2002.
mg/L = milligrams per liter (or parts per million – ppm);  µg/L = micrograms per liter (or  parts per billion – ppb); CFU/100 ml = Colony Forming Units per 100 milliliters of water
*Parameter measured at Davenport Water Pollution control long-term sites only.
**Parameter measured at non-Davenport water Pollution Control long-term sites only.
The following pesticides were also analyzed at the 42 Davenport water Pollution control long-term sites in October 2002, however, no detections were reported:    cyanazine, alachlor, metribuzin, butylate, trifluralin, acetochlor, simazine, ametryn, EPTC, prometon, propachlor, dimethenamid.