Syracuse Pond
E. coli Monitoring 2019

Update September 13, 2019

Syracuse Pond remains on a health advisory after follow-up samples collected by the Davis County Health Department (DCHD) on September 10, 2019, showed E. coli levels above the maximum water quality standard.

DCHD will continue to monitor Syracuse Pond on a regular basis during the advisory. The advisory will remain in place until consecutive samples over two weeks fall below the water-quality standard.

Utah uses the Most Probable Number (MPN) method to estimate the concentration of E. coli in a water sample. The presence of a high number of indicator organisms such as E. coli signals a higher probability of pathogens in the water. The threshold of 409 MPN of bacterial density per 100 milliliters (mL) of water relates to a risk factor of 8 illnesses per 1,000 swimmers. As the value of the MPN increases above 409 MPN, the risk of illness if exposed to contaminated waters also increases.

Sample results

  • September 10, 2019: 980.4 MPN per 100/mL

Update August 6, 2019

The Davis County Health Department (DCHD) issued a health advisory for Syracuse Pond on August 5, 2019, after samples collected on July 30, 2019, and August 1, 2019, showed E. coli levels above the maximum water quality standard. Advisory signs have been posted.

Syracuse Pond will be monitored on a regular basis during the advisory. The advisory will remain in place until consecutive samples over two weeks fall below the water-quality standard.

Utah uses the Most Probable Number (MPN) method to estimate the concentration of E. coli in a water sample. The presence of a high number of indicator organisms such as E. coli signals a higher probability of pathogens in the water. The threshold of 409 MPN of bacterial density per 100 milliliters (mL) of water relates to a risk factor of 8 illnesses per 1,000 swimmers. As the value of the MPN increases above 409 MPN, the risk of illness if exposed to contaminated waters also increases.

Sample results

  • July 30, 2019: 1,046.2 MPN per 100/mL
  • August 1, 2019: 866.4 MPN per 100 mL