Environmental Health Bureau
(269) 373 - 5337, www.kalcounty.com/eh This report summarizes all water quality data collected at Site POR-30, Portage River in the Portage River at Indian Lake 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 Indian Lake (State of Michigan Basin ID #: 34 46) | ||||

Portage River | ||||

POR-30 | East side of South 34th Street, between East 'O' Avenue and East 'OP' Avenue | Pavilion Township (12) |

Site Code: POR-30, Portage River | |||||||||

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) |

10/21/2009 | 13:30 | 10.9 | 50.0 | 13.2 | 117.0% | 8.72 | 0.536 | 0.3 | 1.5 |

06/30/2009 | 12:00 | 410.6 | 65.0 | N/A | N/A | 8.42 | 0.446 | 0.3 | 1.6 |

05/05/2009 | 12:30 | 57.3 | N/A | N/A | N/A | N/A | N/A | N/A | 2.1 |

12/29/2008 | 11:35 | 275.5 | 32.5 | 16.4 | 113.3% | 8.17 | 0.418 | 0.3 | 3.3 |

10/29/2008 | 10:00 | 47.3 | 41.5 | 13.0 | 10.3% | 8.01 | 0.518 | 0.3 | 1.5 |

09/18/2008 | 09:18 | 67.0 | 62.1 | 8.8 | 90.3% | 7.90 | 0.331 | 0.2 | 1.7 |

07/09/2008 | 10:40 | 325.5 | 73.3 | 7.5 | 87.0% | 8.09 | 0.420 | 0.3 | 1.3 |

04/29/2008 | 11:08 | 49.5 | 55.3 | 11.3 | 107.1% | 8.67 | 0.495 | 0.3 | 1.8 |

04/01/2008 | 11:38 | 16.1 | 46.4 | 10.6 | 89.2% | 8.08 | 0.442 | 0.3 | 3.1 |

03/04/2008 | 11:40 | 55.6 | 35.7 | 14.2 | 103.2% | 8.05 | 0.508 | 0.3 | 2.0 |

02/05/2008 | 12:02 | 49.6 | 36.3 | 13.6 | 99.0% | 8.08 | 0.510 | 0.3 | 1.6 |

01/07/2008 | 12:18 | 238.0 | 40.1 | 12.6 | 97.2% | 8.03 | 0.529 | 0.3 | 3.0 |

08/30/2007 | 12:15 | 344.8 | 73.5 | 7.6 | 88.8% | 8.10 | 0.487 | 0.3 | 1.7 |

07/12/2007 | 08:30 | 2,419.6 | 64.5 | 6.5 | 68.7% | 8.01 | 0.516 | 0.3 | 3.5 |

05/29/2007 | 10:00 | 32.3 | 71.7 | 8.7 | 99.3% | 7.91 | 0.474 | 0.3 | 1.7 |

04/24/2007 | 10:20 | 27.2 | 61.0 | 9.4 | 95.4% | 8.35 | 0.502 | 0.3 | 2.3 |

01/11/2007 | 09:45 | 36.4 | 35.4 | 13.5 | 97.4% | 8.35 | 0.451 | 0.3 | 2.7 |

10/17/2006 | 10:00 | 547.5 | 48.4 | 10.2 | 88.8% | 8.10 | 0.504 | 0.3 | N/A |

09/07/2006 | 09:00 | 547.5 | 61.7 | 8.5 | 87.4% | 8.10 | 0.519 | 0.3 | 1.2 |

06/22/2006 | 09:30 | 1,299.7 | 70.3 | 7.5 | 85.3% | 8.06 | 0.487 | 0.3 | N/A |

04/18/2006 | 08:50 | 59.1 | 57.0 | 3.9 | 38.7% | 8.66 | 0.517 | 0.3 | 5.9 |

03/16/2006 | 08:20 | 20.1 | 42.8 | 6.8 | 59.7% | 8.52 | 0.435 | 0.3 | 14.3 |

11/17/2005 | 11:00 | 42.2 | 38.8 | 11.7 | 90.5% | 8.42 | 0.564 | 0.4 | 6.5 |

10/11/2005 | 13:00 | 88.4 | 54.5 | 9.5 | 91.3% | 8.20 | 0.549 | 0.4 | 1.0 |

09/01/2005 | 09:38 | 260.3 | 66.4 | 6.0 | 64.4% | 8.08 | 0.536 | 0.3 | 3.2 |

07/14/2005 | 10:05 | 770.1 | 74.6 | 7.0 | 84.4% | 7.96 | 0.469 | 0.3 | 3.8 |

05/12/2005 | 08:45 | 231.0 | 58.8 | 9.2 | 93.1% | 7.94 | 0.499 | 0.3 | 5.7 |

03/31/2005 | 15:05 | 23.3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

03/03/2005 | 12:05 | 15.6 | 35.1 | 12.4 | 91.5% | 7.91 | 0.541 | 0.4 | 6.1 |

10/19/2004 | 13:35 | 72.7 | 47.1 | 10.3 | 89.4% | 8.06 | 0.504 | 0.3 | 1.6 |

08/13/2004 | 13:50 | 142.1 | 65.3 | 8.8 | 96.3% | 7.96 | 0.476 | 0.3 | 0.7 |

07/09/2004 | 14:00 | 123.6 | 71.5 | 8.4 | 97.5% | 7.88 | 0.437 | 0.3 | 1.4 |

06/03/2004 | 12:48 | 114.5 | 66.3 | 8.6 | 96.1% | 8.08 | 0.426 | 0.3 | 1.1 |

05/13/2004 | 14:00 | 119.8 | 71.1 | 6.7 | 78.6% | 7.73 | 0.321 | 0.2 | 3.9 |

04/07/2004 | 13:00 | 53.7 | 50.6 | 10.4 | 95.7% | 8.35 | 0.444 | 0.3 | 2.5 |

03/17/2004 | 14:25 | 4.1 | 39.4 | 11.4 | 90.1% | 8.18 | 0.441 | 0.3 | 5.9 |

02/25/2004 | 12:30 | 32.3 | 36.7 | 10.9 | 83.0% | 8.14 | 0.531 | 0.3 | 6.7 |

02/04/2004 | 12:30 | 9.7 | 34.2 | 12.1 | 89.0% | 8.03 | 0.565 | 0.4 | 7.8 |

01/14/2004 | 11:45 | 231.0 | 33.4 | 11.5 | 82.2% | 8.06 | 0.529 | 0.3 | 6.8 |

12/11/2003 | 13:15 | 110.0 | 38.3 | 15.0 | 116.7% | 8.23 | 0.472 | 0.3 | 2.7 |

11/19/2003 | 10:00 | 1,203.3 | 48.8 | 8.8 | 82.2% | 8.24 | 0.392 | 0.3 | 5.8 |

10/29/2003 | 13:05 | 65.7 | 44.5 | 13.5 | 113.0% | 8.96 | 0.483 | 0.3 | 2.5 |

10/08/2003 | 14:25 | 53.7 | 57.9 | 9.0 | 89.9% | 8.58 | 0.459 | 0.3 | 1.1 |

09/19/2003 | 11:19 | 365.4 | 64.8 | 8.0 | 87.5% | 8.56 | 0.473 | 0.3 | 2.8 |

08/07/2003 | 12:20 | 307.6 | 73.5 | 8.3 | 100.1% | 8.34 | 0.443 | 0.3 | 12.1 |

07/24/2003 | 10:40 | 435.2 | 67.6 | 7.6 | 85.6% | 8.37 | 0.452 | 0.3 | 3.4 |

07/10/2003 | 11:40 | 344.8 | 73.9 | 6.9 | 83.9% | 8.17 | 0.411 | 0.3 | 9.2 |

06/26/2003 | 11:55 | 1,046.2 | 72.1 | 6.5 | 76.9% | 8.18 | 0.450 | 0.3 | 27.1 |

06/12/2003 | 12:30 | 162.4 | 66.8 | 7.4 | 83.7% | 8.12 | 0.431 | 0.3 | 14.6 |

05/29/2003 | 13:26 | 195.6 | 37.1 | 9.2 | 103.2% | 8.29 | 0.442 | 0.3 | 148.0 |

05/09/2003 | 11:53 | 161.6 | 62.3 | 8.4 | 88.8% | 8.05 | 0.467 | 0.3 | 4.0 |

03/19/2003 | 11:20 | 24.0 | 34.6 | 13.0 | 103.7% | 7.58 | 0.421 | 0.3 | N/A |

02/20/2003 | 15:00 | 28.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

02/12/2003 | 12:20 | 16.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

01/22/2003 | 14:15 | 37.3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

01/15/2003 | 14:20 | 78.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

01/08/2003 | 14:10 | 36.4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

12/18/2002 | 09:55 | 2,419.2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

12/12/2002 | 13:40 | 517.2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

12/04/2002 | 14:20 | 62.4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

11/13/2002 | 10:30 | 549.3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

10/23/2002 | 13:30 | 214.2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

10/09/2002 | 13:15 | 648.8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/25/2002 | 13:00 | 616.7 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/11/2002 | 14:10 | 419.8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/28/2002 | 14:00 | 980.4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/14/2002 | 13:50 | 2,419.2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

07/31/2002 | 14:00 | 1,011.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

07/17/2002 | 15:00 | 1,553.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

06/19/2002 | 13:10 | 980.4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

06/05/2002 | 13:43 | 222.4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

05/22/2002 | 13:10 | 88.6 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

05/01/2002 | 14:38 | 38.8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/26/2001 | 09:42 | 325.5 | 57.2 | N/A | N/A | N/A | N/A | N/A | N/A |

09/19/2001 | 09:39 | 118.2 | 61.7 | N/A | N/A | N/A | N/A | N/A | N/A |

08/30/2001 | 10:39 | 182.9 | 68.7 | N/A | N/A | N/A | N/A | N/A | N/A |

08/14/2001 | 09:45 | 1,553.1 | 64.3 | N/A | N/A | N/A | N/A | N/A | N/A |

08/01/2001 | 09:42 | 770.1 | 73.1 | N/A | N/A | N/A | N/A | N/A | N/A |

07/18/2001 | 10:10 | 1,203.3 | 68.4 | N/A | N/A | N/A | N/A | N/A | N/A |

07/03/2001 | 09:43 | 410.6 | 67.0 | N/A | N/A | N/A | N/A | N/A | N/A |

06/20/2001 | 12:03 | 686.7 | 64.0 | N/A | N/A | N/A | N/A | N/A | N/A |

06/06/2001 | 12:53 | 178.5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

05/23/2001 | 12:11 | 248.9 | 64.6 | N/A | N/A | N/A | N/A | N/A | N/A |

05/09/2001 | 12:15 | 547.5 | 67.9 | N/A | N/A | N/A | N/A | N/A | N/A |

SummaryStatistics | Count | 84 | 60 | 49 | 49 | 50 | 50 | 50 | 48 |

Average | 391.8 | 56.1 | 9.8 | 88.8% | 8.18 | 0.473 | 0.3 | 7.4 | |

Minumum | 4.1 | 32.5 | 3.9 | 10.3% | 7.58 | 0.321 | 0.2 | 0.7 | |

Maximum | 2,419.6 | 74.6 | 16.4 | 117.0% | 8.96 | 0.565 | 0.4 | 148.0 | |

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for POR-30 (Portage River) between May 2001 and October 2009. This site is located in Section Number 12 of Pavilion Township, East side of South 34th Street, between East 'O' Avenue and East 'OP' Avenue. | |||||||||

32 out of 84 water sample results exceeded 300 bacteria colonies per 100 ml of water. | |||||||||

14 out of 84 water sample results were between 130 and 299 bacteria colonies per 100 ml of water. | |||||||||

38 out of 84 water sample results were less than 130 bacteria colonies per 100 ml of water. | |||||||||