Rockport Reservoir: Pinery Picnic Area
E. coli Monitoring 2019

Update July 3, 2019

The Summit County Health Department lifted the E. coli advisory for the Pinery Picnic Area on July 2, 2019, after sampling results collected over two consecutive weeks fell below the advisory threshold of >409 Most Probable Number (MPN) per 100 millliters (mL).

Update June 20, 2019

A Division of Water Quality (DWQ) monitoring crew detected elevated levels of E. coli on June 3, 2019, during routine sampling at Rockport Reservoir. E. coli values from these initial samples were well above the advisory threshold, and subsequent sampling over the next two weeks showed them continuing to climb. Several samples exceeded the highest measurable value for E. coli.

Summit County Health Department issued a health advisory based on these data and posted signs advising the public to not swim or wade in the water.

Sample Dates and MPN Values

  • June 3, 2019: MPN 1414 per 100 mL
  • June 6, 2019: MPN 1986 per 100 mL
  • June 13, 2019: MPN >2420 per 100 mL
  • June 17, 2019: MPN 1733 per 100 mL
  • June 20, 2019: MPN: >2420 per 100 mL
  • June 25, 2019: MPN 17 per 100 mL
  • June 26, 2019: MPN 121 per 100 mL
  • July 2, 2019: MPN 58 per 100 mL
  • July 3, 2019: MPN 77 per 100 mL