Summit County, UT — Water Intelligence Brief
October 26, 2026 | Free-Tier Edition
Situation Summary
Streamflows across Summit County's dual headwaters system are active and rising on the Provo River side, with mixed signals on the Weber side as the basin transitions into its late-October low-demand period. The upper Provo River near Woodland is running at 111 cfs and rising — a healthy late-season reading for Kamas Valley users — while East Canyon Creek near Jeremy Ranch shows 13 cfs rising on the Weber side. Kamas Valley irrigators have largely closed their season, and Park City municipal managers are entering fall system transition; both should note that snowpack accumulation is underway but minimal, and Summit County's headwaters snowpack this season will determine what WBWCD's Echo and Rockport reservoirs receive and what flows downstream toward Jordanelle through winter. Reservoir storage data and 7-day forecast details are available in the full brief.
Snowpack Conditions
Summit County's four SNOTEL stations — all physically located in-county — are reflecting early-season conditions normal for late October, with one exception showing a modest early accumulation signal.
Weber River headwaters (Chalk Creek drainage):
Chalk Creek (9,160 ft): SWE 0.2 inches, 25% of the 0.8-inch median for this date; snow depth 2.0 inches. This station is reporting a data collection issue and readings should be interpreted with caution. Where data is valid, the 0.2" SWE reading at 25% of median indicates below-normal early accumulation for this specific calendar date — though October SWE figures carry limited predictive weight for the full season. This is the primary Weber-side snowpack indicator for Summit County, monitoring the Chalk Creek tributary drainage above Coalville.Beaver Divide (data through 10/25): SWE 0.0 inches, snow depth 0.0 inches. No percent-of-median is shown, meaning the historical median SWE for this date is also 0.0" — this station is at its normal seasonal condition for late October, not below normal.Upper Provo River headwaters:
Trial Lake (data through 10/25): SWE 0.0 inches, snow depth 0.0 inches. As with Beaver Divide, no percent-of-median is shown — the median for this date is also 0.0". Trial Lake is at its normal late-October baseline. This station and Beaver Divide are the primary in-county snowpack monitors for the upper Provo drainage feeding the Kamas Valley corridor.Seasonal context: 2026 was an anomalous early-melt year — snowpack at these stations melted out 4–6 weeks ahead of the historical median meltout date, driven by a March heat wave. That event is now background; the current story is whether early-season accumulation at these in-county headwaters stations keeps pace with or lags historical norms through November and December. Summit County's snowpack directly determines inflows to Echo and Rockport Reservoirs on the Weber side and Provo River contributions toward Jordanelle on the Provo side.
Streamflow Conditions
Six USGS gauges cover Summit County's dual watershed, capturing both in-county flow and flows entering and leaving the county's headwaters systems.
Weber River Basin:
Weber River at Echo, UT: 0 cfs, falling. This is the primary Weber basin integrator — it measures upper Weber River flow entering the WBWCD reservoir system at Echo Reservoir. A reading of 0 cfs falling reflects the late-season low-flow condition on the upper Weber mainstem. WBWCD managers should note this as the current inflow signal to Echo Reservoir from the upper Weber.Weber River near Coalville, UT: 36 cfs, stable. This reading upstream of Echo captures Weber River mainstem flow in the Coalville/Henefer ranching corridor — useful context for upper-basin conditions above the reservoir system.Weber River near Oakley, UT: 136 cfs, stable. This upper-most Weber mainstem gauge reflects conditions in the Oakley reach — notably higher than the Coalville reading, suggesting tributary contributions between stations.Weber River at Gateway, UT: 53 cfs, stable. A mid-basin reference point downstream in the broader Weber system.East Canyon Creek near Jeremy Ranch, UT: 13 cfs, rising. East Canyon Creek is the Park City side of Summit County — this rising signal is noteworthy as a late-October uptick, potentially reflecting recent precipitation. Municipal managers tracking Park City-area drainage should note the rising trend.Provo River Basin:
Provo River near Woodland, UT: 111 cfs, rising. This is the primary upper Provo River indicator — measuring what Summit County is contributing to the Provo system before flow enters Jordanelle Reservoir in Wasatch County. A reading of 111 cfs rising is a healthy late-season figure for the Kamas Valley corridor. Kamas Valley irrigators wrapping up the season and Provo River Water Users Association managers should note this as a strong current flow condition.
Seasonal Guidance
Contact Weber Basin Water Conservancy District (WBWCD) to request current storage status for Echo Reservoir and Rockport Reservoir — both are physically located in Summit County and are the primary Weber-side storage infrastructure managed on behalf of the broader WBWCD system.Kamas Valley agricultural users should contact Summit Water Distribution Company to confirm end-of-season delivery accounting and any carry-over allocation questions for the Provo River corridor.Park City Municipal Corporation manages the Snyderville Basin municipal water system — contact their water resources office for current fall system status and snowmaking season readiness updates affecting East Canyon Creek drainage.Contact Utah Division of Water Rights (waterrights.utah.gov) to verify any changes to water right status, point-of-diversion adjustments, or well permit compliance in both the Snyderville Basin alluvial aquifer (Park City area) and the Kamas Valley alluvial aquifer (upper Provo corridor) before the winter season.
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 information current as of 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, Weber Basin Water Conservancy District (WBWCD — operates Echo Reservoir and Rockport Reservoir, both physically located in Summit County), U.S. Bureau of Reclamation (Upper Colorado Region), Park City Municipal Corporation (municipal water for Park City and Snyderville Basin), Summit Water Distribution Company (Kamas Valley), Provo River Water Users Association (upper Provo River allocation), and Utah Division of Water Rights for regulatory decisions and water rights administration.
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.