SRF has measured the streamflow in Sproul Creek three times so far this dry season. SRF aims to measure every month. It was a month and a half between the last two visits where the 90% drop in flow was striking.
Photos From Monitoring on Sproul Creek, South Fork Eel River
South Fork reach of Sproul Creek, looking upstream (July 3, 2019)
West Fork reach of Sproul Creek, looking downstream (July 3, 2019)