Environmental Health Bureau
(269) 373 - 5337, www.kalcounty.com/eh

This report summarizes all water quality data collected at Site DOR-70, Dorrance Creek in the Portage River at Gage #04097200 Basin of the Portage River Sub-Watershed, which is part of the larger St. Joseph River Watershed. (see map to the right)

Water sampling and measurements are conducted by Environmental Health Bureau staff.

Portage River at Gage #04097200 (State of Michigan Basin ID #: 34 47)
       Dorrance Creek
              DOR-70East side of South 33rd Street, immediately south of East 'TS' AvenuePavilion Township (35)


Site Code: DOR-70, Dorrance Creek
SampleSampleE. coli BacteriaWater TemperatureDissolved OxygenpHConductivityTDSTurbidity
DateTime(MPN)(degrees F)mg/L% Saturation(units)(mS / cm)(g / L)(NTU)
10/15/200912:00248.140.414.5112.5%8.710.6250.43.4
06/30/200912:50613.160.48.687.2%8.590.5530.49.9
06/02/200910:25648.853.111.2103.4%8.430.5720.410.5
05/07/200912:45135.450.813.1117.8%8.620.5670.43.8
04/08/200912:15193.540.27.860.3%8.700.4400.36.8
03/05/200910:30135.437.910.276.8%8.110.5520.47.9
12/29/200809:30461.134.414.7104.6%8.120.4580.311.8
10/29/200808:0095.942.711.894.5%8.140.6030.44.3
09/04/200808:152,419.665.3N/AN/A8.260.5630.48.6
07/09/200808:30408.362.88.790.0%8.270.5620.412.6
04/01/200810:161,986.347.09.682.0%7.940.3480.241.0
03/04/200810:01290.933.613.997.7%8.030.3980.39.8
02/05/200810:21285.139.712.797.0%8.200.5600.49.7
01/07/200809:551,553.141.812.195.8%7.970.4120.324.4
11/28/200709:40142.134.6N/AN/A8.270.6450.44.7
08/29/200711:35387.365.68.287.8%8.200.6460.44.6
07/12/200710:001,986.363.69.094.4%8.220.5790.43.2
05/29/200712:151,413.660.010.5105.5%8.010.5940.48.1
04/24/200711:45172.054.411.6108.7%8.610.5880.43.1
01/11/200711:45121.137.412.694.0%8.250.5890.49.0
10/17/200612:152,419.650.09.483.2%7.950.4990.3N/A
09/07/200611:10980.459.19.796.4%8.280.5860.42.5
06/22/200611:502,419.663.88.588.9%8.100.5070.3N/A
04/18/200611:2090.851.66.560.4%8.840.6230.46.1
02/22/200612:1521.136.59.672.6%8.270.6590.48.1
10/26/200513:001,986.343.410.687.7%8.260.6120.43.9
09/08/200510:58866.464.38.693.4%8.260.5800.42.5
07/13/200510:152,419.667.07.684.8%8.020.5640.413.9
05/05/200511:1593.348.912.1108.2%8.020.5980.411.1
03/31/200513:4050.4N/AN/AN/AN/AN/AN/AN/A
03/11/200512:1550.436.111.989.0%7.840.6020.49.1
10/19/200412:10248.946.89.884.8%8.190.5870.43.7
08/13/200411:30613.158.88.889.5%8.230.5540.45.1
07/09/200411:02435.259.28.586.5%8.010.5700.310.6
06/03/200410:25365.455.29.592.9%8.020.5700.419.6
05/13/200410:24816.469.34.956.3%7.420.3560.222.6
04/28/200409:30249.545.511.8101.3%8.260.5700.45.4
04/07/200410:4213.543.511.192.3%8.300.5790.47.4
03/17/200410:3813.236.611.284.9%8.200.5750.412.5
02/25/200410:07178.232.511.481.2%8.170.5620.412.7
01/14/200410:15110.032.612.184.7%8.140.6040.414.4
12/11/200309:231,553.140.813.1105.9%8.330.5780.414.8
11/19/200311:182,419.650.36.762.0%8.140.3020.248.9
10/29/200314:00209.844.312.9105.1%8.760.5900.43.7
10/02/200313:30365.446.010.287.8%8.950.5720.413.8
09/19/200310:30980.459.88.688.0%8.550.5450.46.2
09/04/200312:32547.560.67.880.5%8.460.5510.43.9
08/07/200313:411,413.666.58.189.6%8.370.5700.45.9
07/24/200309:371,299.760.78.790.5%8.490.5520.419.3
07/10/200312:30727.066.68.190.0%8.330.5720.415.9
06/26/200312:40770.167.57.886.8%8.270.5650.42.7
06/12/200312:56816.460.68.488.1%8.220.5580.437.9
05/29/200313:52378.459.411.5117.5%8.310.6070.43.9
05/08/200313:361,732.953.89.691.8%8.050.6050.410.2
03/20/200315:0016.148.111.4101.8%7.710.6510.4N/A
01/08/200310:2044.8N/AN/AN/AN/AN/AN/AN/A
12/18/200213:05172.0N/AN/AN/AN/AN/AN/AN/A
11/13/200214:5019.9N/AN/AN/AN/AN/AN/AN/A
10/23/200210:20214.2N/AN/AN/AN/AN/AN/AN/A
10/09/200209:45866.4N/AN/AN/AN/AN/AN/AN/A
09/25/200210:45829.7N/AN/AN/AN/AN/AN/AN/A
09/11/200210:201,203.3N/AN/AN/AN/AN/AN/AN/A
08/28/200211:40436.6N/AN/AN/AN/AN/AN/AN/A
08/14/200210:302,419.2N/AN/AN/AN/AN/AN/AN/A
07/31/200211:30980.4N/AN/AN/AN/AN/AN/AN/A
07/17/200212:002,419.2N/AN/AN/AN/AN/AN/AN/A
06/19/200211:00870.4N/AN/AN/AN/AN/AN/AN/A
06/05/200210:20613.1N/AN/AN/AN/AN/AN/AN/A
05/22/200210:45920.8N/AN/AN/AN/AN/AN/AN/A
05/15/200212:35461.1N/AN/AN/AN/AN/AN/AN/A
09/26/200110:31461.149.0N/AN/AN/AN/AN/AN/A
09/19/200110:381,732.959.2N/AN/AN/AN/AN/AN/A
08/30/200109:52435.257.9N/AN/AN/AN/AN/AN/A
08/14/200111:171,299.758.6N/AN/AN/AN/AN/AN/A
08/01/200111:08517.264.0N/AN/AN/AN/AN/AN/A
07/18/200111:372,419.261.7N/AN/AN/AN/AN/AN/A
07/03/200110:58410.669.0N/AN/AN/AN/AN/AN/A
06/20/200111:14579.465.0N/AN/AN/AN/AN/AN/A
06/06/200111:21686.7N/AN/AN/AN/AN/AN/AN/A
05/23/200111:00133.354.0N/AN/AN/AN/AN/AN/A
05/09/200111:10272.358.3N/AN/AN/AN/AN/AN/A
Summary
Statistics
Count8164525254545451
Average775.152.310.190.7%8.250.5560.410.9
Minumum13.232.54.956.3%7.420.3020.22.5
Maximum2,419.669.314.7117.8%8.950.6590.448.9
 
Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for DOR-70 (Dorrance Creek) between May 2001 and October 2009. This site is located in Section Number 35 of Pavilion Township, East side of South 33rd Street, immediately south of East 'TS' Avenue.
 
 52 out of 81 water sample results exceeded 300 bacteria colonies per 100 ml of water.
 16 out of 81 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.
 13 out of 81 water sample results were less than 130 bacteria colonies per 100 ml of water.