Provo River Watershed Council
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  • About the Council
    • Stakeholder Meetings >
      • October 2021
      • June 2021
      • April 2021 Meeting
      • February 2021 Meeting
      • 2019 >
        • January 2019 Meeting
      • 2018 >
        • October 2018 Meeting & Tour
        • July 2018 Summer Tour
        • April 2018 Council Meeting
        • February 2018 Council Meeting
      • 2017 >
        • October 2017 Council Meeting
        • June 2017 Council Meeting
        • April 2017 Council Meeting
        • January 2017 Council Meeting
      • 2016 >
        • October 2016 Council Meeting
    • Council Board Meetings >
      • July 2021
    • Partners
    • Site Visits
  • Water Quality
    • Monitoring
    • Data >
      • Water Quality Data
      • Algal Data
    • Annual WQ Reports >
      • TMDLs
    • Development Review
  • Drinking Water
    • Source Water Protection
    • Water Treatment
  • Projects
    • Quagga Mussels
    • Wallsburg CRMP >
      • Wallsburg CRMP Stategies and Actions
      • Wallsburg CRMP Partners
    • Main Creek Restoration >
      • A Success Story: Main Creek
  • Outreach & Events
  • Education & Information

tmdl reports

Total Maximum Daily Load (TMDL) Reports

When pollutants impair the use of water a study is required to determine how to reduce them and restore water quality. This study is called a Total Maximum Daily Load (TMDL). A TMDL establishes the maximum amount of a pollutant allowed in the water while maintaining all of its designated beneficial uses. Two Reports related to TMDLs have been developed for the Provo River Watershed.  They are the 1999 Upper Provo River Water Quality Management Plan and the Deer Creek Reservoir Draining TMDL Report.

Deer Creek TMDL 2002
File Size: 14596 kb
File Type: pdf
Download File

Upper Provo River Management Plan 1999
File Size: 1143 kb
File Type: pdf
Download File

Deer Creek TMDL

In 2002 a comprehensive study to develop a TMDL for Deer Creek Reservoir was initiated.  This study included not only water quality analysis, but also computer modeling of Deer Creek Reservoir to test various water quality input scenarios.  Additionally, fishery studies were conducted to also identify the health of the reservoir.  A list of various TMDL targets was developed and is shown at right.  This also shows whether the targets have been met for recent years.
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Upper Provo River Water Quality Management Plan

A Water Quality Management Plan was developed for the Provo River, and Deer Creek and Jordanelle Reservoirs in 1984.  In 1999 many of the recommendations from the 1984 plan had been implemented, however, the loadings and concentrations of various pollution indicators still remained high.  In response to this disparity, a review of the management plan was commissioned.  Also, at the same time, the EPA had initiated requirements for States to develop calculations of Total Maximum Daily Load (TMDL) values for waters not meeting beneficial uses.  This report provided TMDL calculations for phosphorus for five stream segments on the Provo River as well as three other stream segments on Snake Creek, Daniels Creek and Main Creek.  Also, a TMDL was calculated for one point source, the Kamas Fish Hatchery.

The recommendations from this report include:

Optimize the SLOW tower on Jordanelle Reservoir for water quality

Research the influence that groundwater quality has on Deer Creek Reservoir

Develop a plan to control stormwater runoff in Heber Valley

No Municipal Phosphorus Discharge

Require new private and pubic developments to be subject to regulations for control of runoff, pollutant control, and plan review

Amend the Wasatch County and Summit County Zoning Ordinances to prohibit runoff or discharges from AFOs and CAFOs

Require developers of Mayflower Mountain Resort to stabilize the Mayflower tailings ponds.

Mount a public education campaign to educate farmers and ranchers about controling over application of water and runoff from agricultural lands


Continue the work and funding of the Deer Creek/Jordanelle Technical Team.

Consider other restoration techniques/projects or phosphorus reduction programs.