Water Quality Testing

The Onondaga County Health Department samples Oneida Shores Beach and Jamesville Beach approximately every two weeks during the summer season. Samples are analyzed for bacteria Escherichia coli (E.coli). A result equal to or above 235 E. coli colonies/100 ml represents an exceedance of the state standard. Test results are available approximately 24 hours after the samples are taken, as sample analysis takes 18-24 hours. 

Oneida Shores Beach

Date Sampled
   Results     Beach Status/Notes
5/20/24   Left side: 1 E.coli per 100ml
Right side: 3 E.coli per 100ml 
then DAILY thru 8/18

Jamesville Beach

Date Sampled    Results     Beach Status/Notes
5/20/24   10 E.coli per 100ml   BEACH OPEN WEEKENDS 5/25-6/16 
then DAILY thru 8/18

Beach Closures
A beach is closed when a sample exceeds the 235 E. coli colonies/100 ml. threshold. The water will then be re-sampled daily until levels decrease. Once acceptable levels of bacteria are found, then the beach will be reopened. The causes of elevated bacteria levels are not always clear. They may be related to land uses in the watershed, storm water runoff, naturally occurring sand or soil bacteria, or other factors.

Questions or concerns?
Click here to visit the Onondaga County Health Department or call (315) 435-6617.

During your visit to Onondaga County Parks, you may be photographed, videotaped, or filmed by Onondaga County Parks or authorized parties. Your attendance/admission serves as permission for use of these images by Onondaga County Parks. Commercial photography or filming is prohibited without permission of Onondaga County Parks.

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