Water Intelligence Brief

Salt Lake County, UT | October 5, 2026

*Free-Tier Edition*

Situation Summary

Jordan River flows at 1700 South are running at 206 cfs with stable conditions, while Little Cottonwood Creek at the Jordan River confluence registers 4 cfs and is rising — a late-season pattern consistent with early October conditions as the irrigation season winds down. For Salt Lake County's three primary suppliers — Salt Lake City Public Utilities, Jordan Valley Water Conservancy District, and Metropolitan Water District of Salt Lake & Sandy — the operational question this week shifts from peak-demand management toward end-of-season storage accounting and early planning for the 2026–27 supply year. Reservoir storage data, conservation tier status, and 7-day forecast details are available in the full brief.

Snowpack Conditions

All five SNOTEL stations in the Salt Lake County mountain watersheds are reporting 0.0" snow water equivalent and 0.0" snow depth as of October 4, 2026 — which is normal for this date. At this point in early October, the historical median SWE at these stations is also 0.0", meaning no below-normal signal should be read into current readings.

The relevant 2026 snowpack story is one of timing, not current deficit: all five stations — Atwater, Brighton, Dry Fork, Mill-D North, and Snowbird — melted out 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave. That early meltout accelerated spring runoff and affected summer storage accumulation. It is now background context as the water year closes.

Station note: Atwater (reporting since August 2022) has fewer than four years of record. Brighton (since 1986), Mill-D North (since 1988), and Snowbird (since 1989) carry significantly more historical weight for trend comparison and should be treated as the primary long-term indicators.

Streamflow Conditions

Two active USGS gauges are currently reporting for Salt Lake County:

The Jordan River reading reflects aggregate basin drainage at the close of the irrigation season. Little Cottonwood Creek's rising signal at 4 cfs warrants monitoring but remains at low absolute volume.

Important data gap: Gauges on Big Cottonwood Creek (10168499, 10169000), Mill Creek (10170000), and Parleys Creek (10171500) are discontinued and not transmitting current data. Canyon-specific flow information for those drainages — relevant to Salt Lake City Public Utilities canyon watershed operations — is not available through USGS at this time. Contact Salt Lake City Public Utilities directly for current Parleys, Big Cottonwood, and Mill Creek conditions.

Seasonal Guidance

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Data Sources: SNOTEL data through October 4, 2026; USGS streamflow data through October 5, 2026

Data Current As Of: October 5, 2026 | Utah Division of Water Rights

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 (Deer Creek and Jordanelle reservoir operations), and Salt Lake City Public Utilities (canyon watershed storage) for regulatory decisions and water rights administration. Jordan River surface flows contribute directly to Great Salt Lake elevation; water managers should monitor ongoing Utah GSL legislation and litigation for potential water rights administration implications.