www.ecoli.utah.gov
Sampling Data
The Utah Division of Water Quality (DWQ) samples water for levels of E. coli. All surface waters contain some E. coli whether or not they have been monitored or an advisory has been issued. DWQ, in coordination with the Utah E. coli Workgroup, has focused monitoring efforts on highly recreated water bodies currently protected for direct and indirect human contact. The result values are screened to make sure E. coli counts are below a certain threshold to protect for human health. There are different thresholds for water bodies protected for direct contact, named 2A water bodies, and water bodies protected for indirect contact, named 2B water bodies. Additionally, DWQ routinely monitors for E. coli in rivers and streams sampled around the State. All current and archived E. coli data are stored on this page.
For more information about the sampled water bodies, screening values and what the result numbers mean, please visit the Home link above.
Current Sampling Data
Lakes and Reservoirs
Currently, the following water bodies are being monitored for E. coli. Three samples are collected at each site on a regular basis.
Water bodies designated as 2A are monitored to not exceed a one-time result of 409 most probable number of E. coli per 100mL of water sample (MPN). If a result exceeds 409 MPN (screening value) at a location, the DWQ recommends to avoid swimming in that area.
Several 2B water bodies are also monitored to not exceed a one-time result of 668 most probable number of E. coli per 100mL of water sample (MPN). These sites are not designated by the State of Utah as direct contact water bodies, but are still protected for indirect contact (ie. boating). If a result exceeds 668 MPN at a 2B location, the DWQ recommends to avoid direct contact with the water in that area.
Since some of the 2B water bodies are more highly recreated than others the State of Utah has decided to use the 2A screening value (409 MPN) which is more protective of human health. These water bodies are listed in the table below but have been identified with an *.
Results are updated frequently. All results collected so far at each water body have been stored in a PDF file in the "Compiled Data" column. Navigate sampling locations alphabetically, or scroll through the table below.
A - B - C - D -E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z
| Location (A-Z) | Designation | Last Date Sampled | Results of Last Sample | Comments | Local Health Dept. | Compiled Data |
|---|---|---|---|---|---|---|
| Adams Canyon | 2B | August 18, 2011 | Below limit | Davis | Adams Data PDF | |
| Bear Lake | 2A | August 15, 2011 | Below limit | Samples collected at B.S.A. Camp Hunt, Bluewater Beach, Cisco Beach, Emerald Beach, First Point, North Beach, Rainbow Cove, Rendezvous Beach, and South Eden | Bear River | Bear Lake Data PDF |
| Bountiful Pond | 2B | July 18, 2011 | Below limit | Davis | Bountiful Data PDF | |
| Calder Reservoir | 2B | August 26, 2011 | Below limit | Tricounty | Calder Pond Data PDF | |
| Causey Reservoir | 2B | September 19, 2011 | Below limit | Weber-Morgan | Causey Data PDF | |
| Clinton Pond | 2B | August 24, 2011 | Below limit | Davis | Clinton Pond Data PDF | |
| Cutler Reservoir | 2B | August 17, 2011 | Below limit | Samples collected at Benson Marina Day Use area | Bear River | Cutler Data PDF |
| Deer Creek State Park | 2A | 2010 | Wasatch | Deer Creek Data PDF | ||
| East CanyonReservoir | 2A | 2010 | Samples collected at Pratt Group Pavilion and Taylor Hollow | Weber-Morgan | East Canyon Data PDF | |
| Farmington Pond | 2B | August 15, 2011 | Below limit | Davis | Farmington Data PDF | |
| Holmes Reservoir | 2B | July 28, 2011 | Below limit | Davis | Holmes Data PDF | |
| *Huntington State Park North | 2B* | September 9, 2011 | *Below limit | Samples collected East and West of Boat Launch Ramp | Southeast | Huntington Data PDF |
| Highland Glen | August 30, 2011 | Below limit | Highland Glen Data PDF | |||
| Hyrum State Park | 2A | August 30, 2011 | Below limit | Samples collected at Day Use Area | Bear River | Hyrum Data PDF |
| Joe's Valley State Park | 2A | September 6, 2011 | Below limit | Samples collected at Marina Day Use Area and Pavilion Group Site | Southeast | Joe's Valley Data PDF |
| Jordanelle Reservoir | 2A | 2010 | Wasatch | Jordanelle Data PDF | ||
| Kaysville Pond/ Botanical Garden | 2B | August 2, 2011 | Below limit | Davis | Kaysville Data PDF | |
| Ken's Lake Beach | 2B | August 29, 2011 | Lake Beach site exceeded 8/29/2011. All samples below limit in resample. | Samples collected at Lake Beach and Lake West | Southeast | Ken's Lake Data PDF |
| Mantua Reservoir | 2B | August 19, 2011 | Below limit | Bear River | Mantua Data PDF | |
| Matt Warner Reservoir | 2B | August 26, 2011 | Below limit | Tricounty | Matt Warner Data PDF | |
| Maybey Pond | 2B | August 15, 2011 |
Below limit | Davis | Maybey Data PDF | |
| Millsite Reservoir | 2A | September 6, 2011 |
Below limit | Samples collected West of State Park at Beach, and at Day Use Area near Pavilion | Southeast | Millsite Data PDF |
| Mueller Park | 2B | July 28, 2011 | Below limit | Davis | Mueller Park Data PDF | |
| Newton Reservoir | 2B | Bear River | Newton Data PDF | |||
| Pelican Lake | 2B | June 23, 2011 | Below limit | Tricounty | Pelican Data PDF | |
| Pineview Reservoir | 2A | September 19, 2011 | Below limit | Samples collected at Anderson Cove, Cemetery Beach, and Middle Inlet | Weber-Morgan | Pineview Data PDF |
| Quail Creek State Park | 2A | June 8, 2011 | Below limit | Samples collected at Beach Access and Marina | Southwest | Quail Creek Data PDF |
| Red Fleet State Park | 2A | July 19, 2011 | Below limit | Samples collected at Boat Launch Ramp | Tricounty | Red Fleet Data PDF |
| Rockport State Park | 2A | August 22, 2011 | Below limit | Samples collected at Crandall Cove Campground near inlet, Juniper Campground (site 30), Marina near Beach Boat Storage and Twin Coves Campground (site 14) | Summit | Rockport Data PDF |
| Salem Pond | 2A | September 19, 2011 | 1 sample at South Arm above limit. All other samples below limit | Due to repeated past samples exceeding the 409 mpn threshold, the City of Salem has posted advisory notices. These are advisory only - the beach is still open. Samples collected at Knoll Park Beach, North Arm, and South Arm. |
Utah | Salem Pond Data PDF |
| *Sand Hollow State Park | 2B* | August 25, 2011 | *Below limit | Samples collected at Day Use Beach and South of Boat Ramp | Southwest | Sand Hollow Data PDF |
| *Scofield State Park | 2B* | September 6, 2011 | *Below limit | Samples collected at Madsen Bay and Mountain View | Southeast | Scofield Data PDF |
| Spanish Fork Reservoir | 2B | September 27, 2011 | Below limit | Utah | Spanish Fork Data PDF | |
| Starvation State Park | 2A | July 20, 2011 | Below limit | Samples collected at Day Use Area, Indian Bay Day Use Area and Knight Hollow Day Use Area | Tricounty | Starvation Data PDF |
| Steed Pond | 2B | August 15, 2011 | Below limit | Davis | Steed Pond Data PDF | |
| Steinaker State Park | 2A | August 16, 2011 | Below limit | Samples collected and East and West Beach | Tricounty | Steinaker Data PDF |
| *Strawberry Reservoir | 2B* | 2010 | * | Wasatch | Strawberry Data PDF | |
| Syracuse Pond/Jensen Nature Park | 2B | August 25, 2011 | Below limit | Davis | Syracuse Data PDF | |
| Weber Basin Job Corp | 2B | August 25, 2011 | Below limit | Davis | Weber Basin Data PDF | |
| Willard Bay State Park | 2A | May 31, 2011 | Below limit | An exceedance in one sample at Pelican Beach on August 30 was re-sampled on September 2. All three re-samples were below the limit. Samples collected at Eagle and Pelican Beach |
Bear River | Willard Bay Data PDF |
| Yuba Lake State Park | 2A | September 8, 2011 | Below limit | Samples collected at Eagle View (East Beach), North Beach, Painted Rocks, and West Beach | Central | Yuba Data PDF |
- Back to Top -
Rivers and Streams
Currently, the following rivers and streams are being monitored for E. coli.
These data are collected and used in Total Daily Maximum Load analyses and 303 (d) impairment listings, or de-listings. All result values collected will be stored in a PDF file in the "Compiled Data" column. More sites that are not impaired but currently sampled for E. coli as part of other projects and programs, will be added as the data are compiled.
| Location (A-Z) | Impairment Status | Comments |
|---|---|---|
| Emmigration Creek | TMDL in progress | For more information visit the DWQ Monitoring Bacteriological Special Areas of Focus Web page |
| North Fork of the Virgin River | Impaired for E. coli | For more information visit the DWQ Monitoring Bacteriological Special Areas of Focus Web page |
| Parley's Creek | Impaired for E. coli | For more information visit the DWQ Monitoring Bacteriological Special Areas of Focus Web page |
- Back to Top -
Archived Sampling Data
- April - September 2011 (PDF) - Coming Soon!
- April - September 2010 (PDF)
Revised: January 30, 2012