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Cowlitz County details costly repairs after plugged leachate line at Headquarters Landfill
Summary
Public Services Director Mike Moss told commissioners a plugged leachate line forced tanker trucking of roughly 1.7 million gallons off the hill and up to 3 million gallons down to Public Works, with ponds near capacity and repair and trucking costs approaching about $500,000; staff plan vaults, valves and cleanouts to reduce future risk.
Cowlitz County Public Services Director Mike Moss told the Board of County Commissioners that crews have made “great progress” in finding and opening a series of plugs in a leachate line that conveys wastewater from the Headquarters Landfill. He said the plugged line required extensive trucking and temporary measures while crews scope and clear remaining blockages.
Moss said crews have run tanker trucks from the leachate ponds to a Public Works vault for about seven days and had transported roughly 1,700,000 gallons off the hill in tankers. "We're gonna run them all at least…
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