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Committee hears Harshaw Creek metals update and TNC plan to restore Sonoita Creek meanders
Summary
Committee member Chris Gardner presented quarterly antimony monitoring results for Harshaw Creek and Alan Sanchez described a TNC-led project to restore meanders on TNC property to reduce flood risk and encourage cottonwood recruitment.
Committee member Chris Gardner provided the group with an update on quarterly monitoring of metals in Harshaw Creek, presenting slides that showed antimony readings from two wells. Gardner noted the monitoring was quarterly and that slides were provided; the transcript references the slide plot but does not include numeric trend details beyond the slide label.
Alan Sanchez described a TNC/SCC restoration project on TNC property along Sonoita Creek. Sanchez said the goal is to restore meanders and natural geomorphology to reduce channelization, widen flow paths during flood events and encourage cottonwood recruitment in the historic floodplain to lower downstream flood risk for the town.
Committee members listed the restoration progress report as a future agenda item and agreed to continue monitoring water-quality data. No formal votes or funding decisions were recorded on the restoration or monitoring items during the meeting.
