Environmental Health Bureau
(269) 373 - 5337, www.kalcounty.com/eh This report summarizes all water quality data collected from Sherman Lake, which is part of the Gull 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. |

Gull Creek at Gage #04105800 (State of Michigan Basin ID #: 17 50) | ||||

Sherman Lake | ||||

SHL-05 | MDNR Public access boat launch site | Ross Township (29) |

Site Code: SHL-05, Sherman 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) |

11/29/2005 | 10:35 | 17.8 | 40.3 | 9.5 | 75.5% | 8.14 | 0.200 | 0.1 | 1.9 |

10/20/2005 | 10:05 | 1.0 | 58.2 | 7.2 | 69.6% | 8.33 | 0.187 | 0.1 | 6.2 |

09/15/2005 | 14:10 | 8.5 | 74.8 | 8.9 | 107.1% | 9.04 | 0.176 | 0.1 | 3.1 |

08/04/2005 | 10:20 | 2.0 | 82.6 | 7.3 | 96.7% | 8.86 | 0.176 | 0.1 | 4.2 |

06/16/2005 | 10:15 | 2.0 | 75.2 | 6.1 | 79.7% | 8.49 | 0.197 | 0.1 | 7.7 |

04/21/2005 | 12:50 | 43.5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

04/05/2005 | 12:00 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/09/2004 | 12:20 | 1.0 | 76.1 | 6.5 | 77.6% | 8.63 | 0.176 | 0.1 | 2.0 |

09/02/2004 | 13:28 | 6.2 | 77.4 | 7.5 | 90.6% | 8.57 | 0.174 | 0.1 | 0.7 |

08/06/2004 | 13:50 | 2.0 | 77.5 | 7.3 | 90.2% | 8.76 | 0.163 | 0.1 | 1.4 |

07/01/2004 | 09:30 | 1.0 | 75.1 | 9.3 | 112.2% | 8.54 | 0.177 | 0.1 | 1.7 |

05/28/2004 | 11:00 | 1.0 | 66.3 | 9.1 | 101.5% | 8.53 | 0.181 | 0.1 | 1.6 |

08/18/2003 | 10:55 | 6.3 | 80.0 | 7.7 | 98.7% | 8.48 | 0.148 | 0.1 | 0.8 |

07/14/2003 | 11:10 | 5.2 | 79.1 | 8.1 | 103.0% | 8.65 | 0.180 | 0.1 | 6.7 |

06/16/2003 | 12:25 | 4.1 | 73.8 | 8.7 | 105.2% | 8.35 | 0.186 | 0.1 | 2.8 |

05/13/2003 | 12:57 | 8.3 | 57.9 | 7.7 | 77.3% | 8.13 | 0.196 | 0.1 | 2.8 |

11/14/2002 | 15:05 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

10/24/2002 | 13:40 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

10/10/2002 | 12:55 | 3.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/26/2002 | 14:45 | 2.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

09/12/2002 | 13:20 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/29/2002 | 13:10 | 1.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/15/2002 | 14:30 | 3.1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

08/01/2002 | 15:05 | 307.6 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

07/18/2002 | 14:50 | 344.8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

06/20/2002 | 14:20 | 3.0 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

05/16/2002 | 12:20 | 1.0 | 58.0 | N/A | N/A | N/A | N/A | N/A | N/A |

08/13/2001 | 10:05 | 6.3 | 80.6 | N/A | N/A | N/A | N/A | N/A | N/A |

07/30/2001 | 10:12 | 2.0 | 76.9 | N/A | N/A | N/A | N/A | N/A | N/A |

07/16/2001 | 10:10 | 290.9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

07/05/2001 | 12:50 | 4.1 | 78.0 | N/A | N/A | N/A | N/A | N/A | N/A |

06/18/2001 | 11:08 | 6.2 | 75.0 | N/A | N/A | N/A | N/A | N/A | N/A |

06/04/2001 | 11:25 | 1.0 | 65.0 | N/A | N/A | N/A | N/A | N/A | N/A |

05/21/2001 | 10:58 | 24.3 | 70.0 | N/A | N/A | N/A | N/A | N/A | N/A |

05/07/2001 | 09:37 | 1.0 | 63.9 | N/A | N/A | N/A | N/A | N/A | N/A |

SummaryStatistics | Count | 35 | 22 | 14 | 14 | 14 | 14 | 14 | 14 |

Average | 31.9 | 71.0 | 7.9 | 91.8% | 8.54 | 0.180 | 0.1 | 3.1 | |

Minumum | 1.0 | 40.3 | 6.1 | 69.6% | 8.13 | 0.148 | 0.1 | 0.7 | |

Maximum | 344.8 | 82.6 | 9.5 | 112.2% | 9.04 | 0.200 | 0.1 | 7.7 | |

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for SHL-05 (Sherman Lake) between May 2001 and November 2005. This site is located in Section Number 29 of Ross Township, MDNR Public access boat launch site. | |||||||||

2 out of 35 water sample results exceeded 300 bacteria colonies per 100 ml of water. | |||||||||

1 out of 35 water sample results were between 130 and 299 bacteria colonies per 100 ml of water. | |||||||||

32 out of 35 water sample results were less than 130 bacteria colonies per 100 ml of water. | |||||||||