Water Intelligence Brief · Archive

Salt Lake County, UT

October 26, 2026

Salt Lake County Water Intelligence Brief

October 26, 2026 | Free-Tier Edition


Situation Summary

Jordan River flows at 1700 South are holding at 123 cfs and Little Cottonwood Creek is at 78 cfs and rising, indicating stable-to-improving late-October surface water conditions across the active monitoring network. For Salt Lake County's three municipal suppliers — Salt Lake City Public Utilities, Jordan Valley Water Conservancy District, and Metropolitan Water District of Salt Lake & Sandy — the near-term operational picture reflects seasonal transition rather than acute shortage, though early-season snowpack accumulation remains the forward-looking variable to watch. Reservoir storage data, Provo River Project import volumes, and 7-day forecast details are available in the full brief.


Snowpack Conditions

SNOTEL readings as of October 25, 2026 reflect typical early-season conditions at most stations, with nominal accumulation at two sites:

  • Atwater: SWE 0.0", Depth 1.0". No percent-of-median shown; median SWE for this date is also 0.0", indicating normal seasonal condition. *Note: Atwater (reporting since August 2022) has less than four years of record and should not be used as a primary trend indicator. Weight Brighton, Mill-D North, and Snowbird as the lead historical benchmarks.*
  • Brighton: SWE 0.2", Depth 0.0". No percent-of-median shown.
  • Dry Fork: SWE 0.0", Depth 0.0". Normal for this date.
  • Mill-D North: Data collection issues — no reading available.
  • Snowbird: SWE 0.5", reported at 100% of the 0.5" median. This station is precisely at its seasonal median, confirming normal early-accumulation conditions for late October.
  • The accurate seasonal signal is not below-normal snowpack today — it is meltout timing from earlier in 2026: across the Jordan River Basin, stations melted out approximately 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave. That early meltout is background context for supply planning. The critical forward question is whether November–March accumulation returns to normal trajectories.


    Streamflow Conditions

    Two active USGS gauges are transmitting data for Salt Lake County as of October 26, 2026:

  • Jordan River @ 1700 South, Salt Lake City: 123 cfs, condition stable.
  • Little Cottonwood Creek @ Jordan River, near SLC: 78 cfs, condition rising.
  • Both readings are consistent with late-season baseflow supported by recent precipitation or residual drainage. The rising signal on Little Cottonwood Creek warrants monitoring.

    Data gap advisory: Big Cottonwood Creek (gauges 10168499 and 10169000), Mill Creek (10170000), and Parleys Creek (10171500) are discontinued gauges and are not transmitting current data. Municipal operators and canyon watershed managers should contact Salt Lake City Public Utilities directly for current flow conditions on those drainages.


    Seasonal Guidance

  • Contact Jordan Valley Water Conservancy District (jvwcd.org) to verify current conservation tier status and any active demand management programs for south and west county service areas.
  • Contact Salt Lake City Public Utilities (slcgov.com/utilities) for current canyon watershed storage status at Mountain Dell and Little Dell reservoirs and for flow data on ungauged drainages.
  • Contact Metropolitan Water District of Salt Lake & Sandy for current Provo Reservoir Canal import volumes and Deer Creek/Jordanelle delivery coordination through the USBR Upper Colorado Region.
  • *— Agricultural users (Bluffdale, Herriman, Riverton, Magna): —*

  • Contact Utah Division of Water Rights (waterrights.utah.gov) to verify delivery status on Jordan River agricultural water right accounts ahead of the off-season administrative period.

  • Subscribe for the full brief including reservoir storage, weather forecasts, depletion analysis, and detailed operational recommendations.


    Data Sources: SNOTEL data through October 25, 2026; USGS streamflow data through October 26, 2026.

    Data Current As Of: October 26, 2026. Water rights status current as of Utah Division of Water Rights records.

    Important Disclaimers: This brief provides automated analysis for informational purposes only. Specific numerical claims have not been independently verified. Consult official sources including your local water district, U.S. Bureau of Reclamation Upper Colorado Region (for Deer Creek and Jordanelle reservoir operations), and Salt Lake City Public Utilities (canyon watershed storage) for regulatory decisions and water rights administration. Jordan River is the primary surface inflow to Great Salt Lake; county water consumption and supply decisions intersect with ongoing Utah GSL elevation legislation and should be considered in that policy context.

    Data & Disclaimers

    Sources: NRCS SNOTEL network · USGS National Water Information System · National Weather Service

    This brief provides automated analysis for informational purposes only. Consult official sources including your local water district and state Division of Water Rights for regulatory decisions. This document does not constitute legal, regulatory, or engineering advice.

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