The Humboldt Bay Municipal Water District has completed emergency repairs to a hydraulic gate at the R.W. Mathews Dam on Ruth Lake, according to a press release issued today.  Environmental containment and cleanup operations have also been wrapped up following a March 3 failure in the dam gate’s hydraulic operating system. The subsequent discovery of a hydraulic fluid leak triggered “an all-hands emergency that demanded immediate action to protect our community’s water supply,” District General Manager Michiko Mares says in the press release. No oil was observed in the Mad River at any point during the incident or repair operations, according to the district.