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

This report summarizes all water quality data collected at Site THL-05, Thrall Lake 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)
       Thrall Lake
              THL-05Oak Shores Resort, South 28th Street, between East 'V' Avenue and East 'W' AvenueBrady Township (17)


Site Code: THL-05, Thrall Lake
SampleSampleE. coli BacteriaWater TemperatureDissolved OxygenpHConductivityTDSTurbidity
DateTime(MPN)(degrees F)mg/L% Saturation(units)(mS / cm)(g / L)(NTU)
11/20/200209:351.0N/AN/AN/AN/AN/AN/AN/A
11/06/200209:454.1N/AN/AN/AN/AN/AN/AN/A
10/16/200210:057.4N/AN/AN/AN/AN/AN/AN/A
10/02/200210:2011.9N/AN/AN/AN/AN/AN/AN/A
09/18/200210:50172.2N/AN/AN/AN/AN/AN/AN/A
09/04/200210:201.0N/AN/AN/AN/AN/AN/AN/A
08/21/200211:505.2N/AN/AN/AN/AN/AN/AN/A
08/07/200210:306.3N/AN/AN/AN/AN/AN/AN/A
07/24/200210:205.2N/AN/AN/AN/AN/AN/AN/A
07/10/200211:3016.8N/AN/AN/AN/AN/AN/AN/A
06/26/200209:2510.8N/AN/AN/AN/AN/AN/AN/A
06/12/200209:003.1N/AN/AN/AN/AN/AN/AN/A
05/29/200209:306.3N/AN/AN/AN/AN/AN/AN/A
05/08/200213:001.0N/AN/AN/AN/AN/AN/AN/A
08/22/200113:01410.676.3N/AN/AN/AN/AN/AN/A
08/08/200111:5621.379.2N/AN/AN/AN/AN/AN/A
07/25/200112:3036.974.7N/AN/AN/AN/AN/AN/A
07/11/200112:301.072.0N/AN/AN/AN/AN/AN/A
06/27/200112:361.082.0N/AN/AN/AN/AN/AN/A
06/13/200111:195.276.0N/AN/AN/AN/AN/AN/A
05/31/200112:452.064.3N/AN/AN/AN/AN/AN/A
05/16/200112:328.568.2N/AN/AN/AN/AN/AN/A
05/02/200112:415.272.7N/AN/AN/AN/AN/AN/A
Summary
Statistics
Count239000000
Average32.373.9
Minumum1.064.3
Maximum410.682.0
 
Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for THL-05 (Thrall Lake) between May 2001 and November 2002. This site is located in Section Number 17 of Brady Township, Oak Shores Resort, South 28th Street, between East 'V' Avenue and East 'W' Avenue.
 
 1 out of 23 water sample results exceeded 300 bacteria colonies per 100 ml of water.
 1 out of 23 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.
 21 out of 23 water sample results were less than 130 bacteria colonies per 100 ml of water.