Category: Waterborne Pathogens

Farmington Pond
E. coli Monitoring 2020

Update November 2, 2020 The Warning Advisory for Farmington Pond has been removed as a result of the end of the sampling and monitoring recreation season. The Utah Division of Water Quality’s water recreation season runs from May 1 through October 31. At this time, no further monitoring or sampling for harmful algal blooms or …

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Stormwater Ponds and Irrigation Canals

A local pond or irrigation canal that looks inviting for a quick swim on a hot summer day may contain waterborne pathogens that can make people sick. The public, particularly children, often view urban and suburban ponds and irrigation canals as play areas, but they aren’t. Stormwater Ponds Stormwater detention and retention ponds control flooding, …

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Rockport Reservoir: Pinery Picnic Area
E. coli Monitoring 2020

Update May 28, 2020 The Division of Water Quality conducted follow-up sampling on May 27, 2020, at the Pinery Picnic Area at Rockport Reservoir. E coli values in these samples were 25.9 Most Probable Number (MPN) per 100 milliliters (mL), well below the health advisory threshold of 409 MPN per 100 mL. Summit County Health …

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Midas Creek
E. coli Monitoring 2019

Update November 22, 2019 The E. coli advisory for Midas Creek was lifted after samples collected by the Division of Water Quality (DWQ) at Midas Creek upstream of the Jordan River on October 10, 2019, showed that E. coli levels below the maximum water quality criteria. E. coli advisories are being removed from waterbodies now …

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Maybey Pond
E. coli Monitoring 2019

Update January 8, 2019 Follow-up samples collected by the Davis County Health Department (DCHD) in September, October, and November 2019 showed E. coli levels decreasing from concentrations well above the maximum water quality standard in late September 2019 to well below the maximum water quality standard in November 2019. Utah uses the Most Probable Number …

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Syracuse Pond
E. coli Monitoring 2019

Update January 8, 2020 Follow-up samples collected by the Davis County Health Department (DCHD) at Syracuse Pond in September, October, and November 2019 showed E. coli levels decreasing to levels well below the maximum water quality standard. Utah uses the Most Probable Number (MPN) method to estimate the concentration of E. coli in a water …

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North Fork Virgin River
E. coli Monitoring 2020

Update May 4, 2020 A health advisory remains in place for the North Fork Virgin River. Results from 2016 – 2019 monitoring continue to indicate that water quality is improving on the North Fork Virgin River. However, the National Park Service continues to educate backcountry visitors about the possible health risks associated with water contaminated …

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San Juan River: Mexican Hat
E. coli Monitoring 2019

Update July 25, 2019 The Division of Water Quality (DWQ) detected elevated levels of E. coli at Mexican Hat on May 23, 2019, during routine sampling. E. coli values reached 1203 Most Probable Number (MPN) per 100 mL, approximately three times higher than the health advisory threshold of >409 MPN per 100 mL. Subsequent sampling …

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San Juan River: Sand Island
E. coli Monitoring 2019

Update July 25, 2019 Additional sampling conducted on July 15, 2019, and July 17, 2019, showed E. coli levels well below the advisory threshold. Final sampling on July 25, 2019, confirmed continuing low E. coli levels. The health advisory was lifted on July 25, 2019. A health advisory for E. coli can be lifted after …

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Utah Lake: Lindon Beach
E. coli Monitoring 2019

Update July 9, 2019 The Lindon Beach beach advisory was lifted on July 9, 2019, since E. coli levels were well below the health advisory threshold over a period of more than four months. While routine sampling on February 19, 2019, showed E. coli levels of 686 Most Probable Number (MPN) per 100 mL, subsequent …

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Utah Lake: Lincoln Beach
E. coli Monitoring 2019

Update June 27, 2019 Response sampling at Lincoln Beach from June 17 to June 27, 2019, showed E. coli levels well below the advisory threshold. The beach was cleared on June 27, 2019, since levels were below the health advisory threshold over two consecutive weeks of sampling. Update June 13, 2019 A Division of Water …

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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 …

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Response Agency Resources & Signage: Waterborne Pathogens

Resources DWQ E.coli Sample Collection & Analysis Standard Operating Procedure (SOP) The sample collection protocol for all personnel collecting E. coli water quality samples, including DWQ staff, cooperating agencies, and volunteer monitors, in Utah’s lakes, rivers, and streams. DWQ Health Advisory Decision Diagram DWQ developed this decision diagram to help local health departments (LHDs) determine …

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