DEQ: Holland Lake sewer hasn't damaged surrounding groundwater
December 28, 2023
New monitoring wells drilled around the Holland Lake Wastewater System showed the two sewage lagoons have not contaminated groundwater, according to both the Forest Service and the Montana Department of Environmental Quality.
Testing at the site started after DEQ engineers reported the wastewater system was leaking at more than 140 times the legal limit, or roughly 50,000 gallons of wastewater in one week.
The state then issued a violation letter to Flathead National Forest, requiring monitoring wells, a new design and a rebuild of the two-cell lagoons. Surface water testing on Holland L...