Community Surface Water Sampling Program

2008 Sample Results

River Sites Beaches
     Lansing      Valhalla Park
     Delhi Township      Burchfield Park
     East Lansing      Hawk Island Park
     Mason      Lake Lansing Park South
     Meridian Township  
     Onondaga  
     Webberville  
Currently Inactive Sites:  
     Leslie    
     Stockbridge
     VFW
     Williamston
 
Additional Sampling Results
Rain vs. Ecoli Graphs

Note:
  • E. coli = The number of E. coli per 100 milliliters.

  • Geomean = The geometric mean of the three samples taken at a particular location (Right, Center, Left). 

  • Total Body Contact is ≤ 300 E. coli/100 ml. 

  • Partial Body Contact is ≤ 1000 E. coli/100 ml.

  • If the result was recorded as <10 a 9 was recorded in the table.

  • Sampling is performed on Mondays and results are reported by the Friday of that week (from  April through October).

  • The amount of rain is recorded in inches.

  • Significant Rain Events (>1/4 inch in 48 hours) may increase the E. coli count making the water unsafe for recreational activities

  • For more information see the Interpretation of Results

 


Community Surface Water Sampling Program
Map of Sites
Environmental Health

Rivers

Community Surface Water Sampling 2008: May 5, 2008 - September 29, 2008    
                       
    Additional Samples collected due to Combined Sewer Overflow Events          
                       
Lansing                        
                       
S-1             S-2          
Elm/Grand River           Elm/Grand          
Lansing             Lansing          
Date Location E. Coli Geomean CSO Rain   Date Location E. Coli Geomean CSO Rain
5/5/2008 LEFT 140         5/5/2008 LEFT 19      
5/5/2008 CENTER 40         5/5/2008 CENTER 40      
5/5/2008 RIGHT 80 76.517247   0.23   5/5/2008 RIGHT 60 35.72632   0.23
5/12/2008 LEFT 1000         5/12/2008 LEFT 200      
5/12/2008 CENTER 1200         5/12/2008 CENTER 200      
5/12/2008 RIGHT 720 952.44063   0.68   5/12/2008 RIGHT 200 200   0.68
5/19/2008 LEFT 400         5/19/2008 LEFT 60      
5/19/2008 CENTER 200         5/19/2008 CENTER 20      
5/19/2008 RIGHT 140 223.73779   0.14   5/19/2008 RIGHT 20 28.844991   0.14
5/27/2008 LEFT 220         5/27/2008 LEFT 40      
5/27/2008 CENTER 240         5/27/2008 CENTER 40      
5/27/2008 RIGHT 80 161.6496   0.1   5/27/2008 RIGHT 80 50.396842   0.1
6/2/2008 LEFT 120         6/2/2008 LEFT 200      
6/2/2008 CENTER 20         6/2/2008 CENTER 100      
6/2/2008 RIGHT 20 36.342412   0.07   6/2/2008 RIGHT 100 125.9921   0.07
6/9/2008 LEFT