MT.SHASTA, CALIF. - The city of Mount Shasta has agreed to pay $1.3 million to settle an Administrative Liability complaint for sewer overflows from its collection system and for violating effluent limitations at its wastewater treatment plant.
The State Water Resources Control Board announced the agreement today.
It says the overflows occurred between October of 2014 and April of 2017 and were mainly caused by a buildup of debris and root intrusion from aging infrastructure. As a result, the agency says the system could not accommodate heavy flows during intense rainfall.
In 2017, the heavy rains also caused substantial channel bank erosion at a pipe crossing that resulted in the failure of the pipe and a sewage spill into Cold Creek, a tributary to Lake Siskiyou, posing a threat to both humans and wildlife.
Under terms of the settlement, the city will allocate $1.1 million of the penalty to upgrading the collection system in the downtown area to reduce the likelihood of future overflows.
It will also direct $108,000 toward completing assessments and studies about upgrading its water treatment plant to prevent effluent violations.