Flow Monitoring

Thomas Gast Associates Environmental Consultants (TGAEC) collected flow data at six locations in the Tenmile Creek watershed in lower Tenmile Creek, Tenmile Creek at the historic USGS gauge site, lower Streeter Creek, lower Big Rock Creek, and Mill Creek above Little Case Creek (see map below).  In addition, TGAEC also assimilated data from the Cahto Tribe that was provided by McGinnis & Associates, a Reno-based consulting firm, that collect water level and water quality data on Cahto Creek on the Rancheria.  TGAEC maintained gauges, periodically downloaded and edited data and ran quality checks.  Data were then used in model runs.  Read the reports of flow from 2021 to 2024. 

Thomas Gast Associates Environmental Consultants (TGAEC). 2023.  2022 Tenmile Creek Streamflow Monitoring Report.  Published March 13, 2023.  Performed under contract to the Eel River Recovery Project Eel River Recovery Project SCC Prop. 1, Phase II (Agreement # 20-076. TGAEC, Arcata, CA. 24 p.

Thomas Gast Associates Environmental Consultants (TGAEC). 2024. 2022 - 2023 Tenmile Creek Streamflow Monitoring Report. Published March 1, 2024.  Performed under contract to the Eel River Recovery Project Eel River Recovery Project SCC Prop. 1, Phase II (Agreement # 20-076. TGAEC, Arcata, CA. 23 p.

TGAEC uses Onset Instruments’ high-accuracy, pressure-based water level data loggers. They feature research-grade accuracy and are easy to use. The Hobo Water Level Logger also measures water temperature and barometric pressure. Once a water reference level is established, associated HOBOware Pro software automatically converts pressure readings into water level readings, including compensation for water temperature, barometric pressure, and fluid density automatically.