Environmental Health Bureau
(269) 373 - 5337, www.kalcounty.com/eh This report summarizes all water quality data collected at Site BLL-05, Blue Lake 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) | ||||

Blue Lake | ||||

BLL-05 | MDNR Public access boat launch site (Cold Brook County Park) | Charleston Township (34) |

Site Code: BLL-05, Blue Lake | |||||||||

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) |

11/17/2005 | 12:05 | 1.0 | 44.5 | 8.2 | 68.8% | 8.19 | 0.423 | 0.3 | 7.0 |

10/11/2005 | 14:30 | 2.0 | 59.6 | 8.2 | 84.1% | 8.28 | 0.396 | 0.3 | 2.4 |

09/01/2005 | 08:32 | 1.0 | 73.5 | 5.4 | 61.9% | 8.51 | 0.389 | 0.3 | 5.1 |

07/14/2005 | 09:10 | 35.4 | 81.3 | 7.4 | 95.6% | 8.37 | 0.378 | 0.2 | 1.8 |

05/12/2005 | 07:45 | 10.6 | 59.4 | 7.6 | 78.5% | 8.09 | 0.433 | 0.3 | 1.5 |

08/02/2004 | 10:40 | 30.5 | 76.7 | 7.1 | 87.7% | 8.11 | 0.339 | 0.2 | 1.2 |

05/19/2004 | 14:10 | 17.1 | 69.6 | 8.3 | 96.1% | 8.08 | 0.318 | 0.2 | 46.5 |

08/11/2003 | 12:40 | 4.1 | 79.0 | 8.1 | 102.5% | 8.53 | 0.321 | 0.2 | 3.0 |

07/14/2003 | 12:53 | 7.3 | 78.3 | 10.9 | 138.2% | 8.84 | 0.311 | 0.2 | 6.6 |

06/16/2003 | 09:45 | 4.1 | 72.8 | 9.2 | 111.3% | 8.35 | 0.341 | 0.2 | 3.4 |

11/14/2002 | 13:20 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

10/24/2002 | 12:45 | 3.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

10/10/2002 | 12:25 | 7.4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/26/2002 | 12:40 | 46.5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/12/2002 | 12:45 | 4.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/29/2002 | 09:00 | 2.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/15/2002 | 12:40 | 209.8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/01/2002 | 14:00 | 228.2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

07/18/2002 | 14:06 | 10.9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

06/20/2002 | 12:30 | 27.8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

06/06/2002 | 14:30 | 69.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

05/23/2002 | 14:25 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/22/2001 | 11:00 | 32.7 | 70.7 | N/A | N/A | N/A | N/A | N/A | N/A |

08/08/2001 | 10:20 | 24.2 | 83.3 | N/A | N/A | N/A | N/A | N/A | N/A |

07/25/2001 | 10:21 | 201.4 | 76.3 | N/A | N/A | N/A | N/A | N/A | N/A |

07/11/2001 | 09:15 | 110.0 | 64.0 | N/A | N/A | N/A | N/A | N/A | N/A |

06/27/2001 | 09:58 | 19.9 | 79.0 | N/A | N/A | N/A | N/A | N/A | N/A |

06/13/2001 | 09:20 | 304.4 | 74.0 | N/A | N/A | N/A | N/A | N/A | N/A |

05/31/2001 | 09:43 | 10.8 | 62.8 | N/A | N/A | N/A | N/A | N/A | N/A |

05/16/2001 | 10:22 | 209.8 | 63.9 | N/A | N/A | N/A | N/A | N/A | N/A |

05/02/2001 | 10:05 | 5.2 | 63.9 | N/A | N/A | N/A | N/A | N/A | N/A |

SummaryStatistics | Count | 31 | 19 | 10 | 10 | 10 | 10 | 10 | 10 |

Average | 53.0 | 70.1 | 8.1 | 92.5% | 8.34 | 0.365 | 0.2 | 7.9 | |

Minumum | 1.0 | 44.5 | 5.4 | 61.9% | 8.08 | 0.311 | 0.2 | 1.2 | |

Maximum | 304.4 | 83.3 | 10.9 | 138.2% | 8.84 | 0.433 | 0.3 | 46.5 | |

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for BLL-05 (Blue Lake) between May 2001 and November 2005. This site is located in Section Number 34 of Charleston Township, MDNR Public access boat launch site (Cold Brook County Park). | |||||||||

1 out of 31 water sample results exceeded 300 bacteria colonies per 100 ml of water. | |||||||||

4 out of 31 water sample results were between 130 and 299 bacteria colonies per 100 ml of water. | |||||||||

26 out of 31 water sample results were less than 130 bacteria colonies per 100 ml of water. | |||||||||