Environmental Health Bureau
(269) 373 - 5337, www.kalcounty.com/eh This report summarizes all water quality data collected at Site DAV-15, Davis Creek in the Davis Creek at Mouth Basin of the Davis Creek Sub-Watershed, which is part of the larger Kalamazoo River Watershed. (see map to the right) Water sampling and measurements are conducted by Environmental Health Bureau staff. |
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| Davis Creek at Mouth (State of Michigan Basin ID #: 17 56) | ||||
| Davis Creek | ||||
| DAV-15 | Northwest corner of Sprinkle Road & Meredith Drive | City of Portage (1) | ||
| Site Code: DAV-15, Davis Creek | |||||||||
| Sample | Sample | E. coli Bacteria | Water Temperature | Dissolved Oxygen | pH | Conductivity | TDS | Turbidity | |
|---|---|---|---|---|---|---|---|---|---|
| Date | Time | (MPN) | (degrees F) | mg/L | % Saturation | (units) | (mS / cm) | (g / L) | (NTU) |
| 06/24/2009 | 10:23 | 410.6 | 57.1 | N/A | N/A | 8.32 | 0.515 | 0.3 | 14.1 |
| 04/29/2009 | 09:50 | 1,046.2 | 48.5 | 10.3 | 89.4% | 8.07 | 0.453 | 0.3 | 4.7 |
| 03/11/2009 | 13:45 | 224.7 | 41.0 | 8.0 | 62.6% | 7.79 | 0.301 | 0.2 | 11.8 |
| 11/18/2008 | 13:24 | 83.9 | 38.3 | 12.9 | 97.1% | 8.15 | 0.528 | 0.3 | 3.2 |
| 09/24/2008 | 10:50 | 290.9 | 56.7 | 8.8 | 84.7% | 7.88 | 0.463 | 0.3 | 8.8 |
| 07/30/2008 | 09:30 | 517.2 | 60.8 | N/A | N/A | 8.07 | 0.376 | 0.2 | 13.6 |
| 06/04/2008 | 09:45 | 488.4 | 55.5 | N/A | N/A | 7.91 | 0.520 | 0.3 | 10.1 |
| 03/12/2008 | 13:40 | 44.1 | 42.8 | 11.5 | 92.5% | 7.96 | 0.467 | 0.3 | 8.0 |
| 01/14/2008 | 00:15 | 73.3 | 40.7 | 11.1 | 86.8% | 7.97 | 0.674 | 0.4 | 7.4 |
| 12/05/2007 | 11:00 | 51.2 | 34.8 | 13.2 | 94.6% | 8.17 | 0.467 | 0.3 | 3.2 |
| 08/16/2007 | 10:50 | 920.8 | 64.2 | 8.7 | 92.0% | 8.07 | 0.566 | 0.4 | 4.0 |
| 06/26/2007 | 10:35 | 727.0 | 60.1 | 16.9 | 170.2% | 7.95 | 0.562 | 0.4 | 8.8 |
| 05/22/2007 | 11:00 | 218.7 | 54.9 | 10.6 | 99.9% | 7.86 | 0.529 | 0.3 | 11.1 |
| 04/12/2007 | 11:50 | 866.4 | 40.0 | 10.5 | 81.1% | 8.03 | 0.424 | 0.3 | 9.4 |
| 03/13/2007 | 12:20 | 45.5 | 43.5 | 8.8 | 71.3% | 8.08 | 0.483 | 0.3 | 9.5 |
| 12/27/2006 | 11:00 | 31.3 | 41.3 | 11.3 | 89.0% | 8.22 | 0.565 | 0.4 | 6.0 |
| 10/19/2006 | 09:35 | 261.3 | 51.1 | 8.7 | 78.0% | 7.94 | 0.574 | 0.4 | N/A |
| 09/19/2006 | 11:10 | 613.1 | 56.0 | 9.0 | 86.6% | 8.01 | 0.598 | 0.4 | N/A |
| 07/18/2006 | 09:30 | 2,419.6 | 68.2 | 6.2 | 68.1% | 7.68 | 0.264 | 0.2 | N/A |
| 05/23/2006 | 10:45 | 155.3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 04/11/2006 | 09:20 | 501.2 | 45.5 | 5.1 | 43.9% | 8.53 | 0.574 | 0.4 | 14.5 |
| 01/26/2006 | 11:45 | 30.1 | 35.0 | 12.9 | 94.7% | 8.22 | 0.601 | 0.4 | 45.2 |
| 11/22/2005 | 12:30 | 74.9 | 39.1 | 10.0 | 80.0% | 8.23 | 0.615 | 0.4 | 3.5 |
| 10/13/2005 | 08:45 | 344.8 | 55.0 | 8.4 | 81.1% | 8.10 | 0.600 | 0.4 | 15.2 |
| 09/13/2005 | 12:50 | 816.4 | 64.0 | 7.8 | 85.1% | 8.01 | 0.578 | 0.4 | 8.4 |
| 07/21/2005 | 13:00 | 579.4 | 67.8 | 6.4 | 72.8% | 7.55 | 0.421 | 0.3 | 13.6 |
| 05/26/2005 | 12:20 | 142.1 | 54.0 | 8.6 | 82.0% | 7.87 | 0.551 | 0.4 | 9.4 |
| 04/19/2005 | 11:10 | 121.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 04/14/2005 | 11:25 | 40.2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 03/22/2005 | 12:15 | 54.6 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 02/24/2005 | 13:15 | 67.0 | 38.7 | 10.3 | 80.4% | 7.61 | 0.441 | 0.3 | 11.0 |
| 12/16/2004 | 11:35 | 37.3 | 37.8 | 11.1 | 84.6% | 7.76 | 0.543 | 0.4 | 7.3 |
| 10/27/2004 | 11:40 | 117.8 | 52.9 | 7.9 | 74.7% | 7.71 | 0.617 | 0.4 | 1.5 |
| Summary Statistics | Count | 33 | 29 | 26 | 26 | 29 | 29 | 29 | 26 |
| Average | 376.3 | 49.8 | 9.8 | 85.5% | 7.99 | 0.513 | 0.3 | 10.1 | |
| Minumum | 30.1 | 34.8 | 5.1 | 43.9% | 7.55 | 0.264 | 0.2 | 1.5 | |
| Maximum | 2,419.6 | 68.2 | 16.9 | 170.2% | 8.53 | 0.674 | 0.4 | 45.2 | |
| Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for DAV-15 (Davis Creek) between October 2004 and June 2009. This site is located in Section Number 1 of City of Portage, Northwest corner of Sprinkle Road & Meredith Drive. | |||||||||
| 13 out of 33 water sample results exceeded 300 bacteria colonies per 100 ml of water. | |||||||||
| 6 out of 33 water sample results were between 130 and 299 bacteria colonies per 100 ml of water. | |||||||||
| 14 out of 33 water sample results were less than 130 bacteria colonies per 100 ml of water. | |||||||||