Mission Statement
The wastewater division is responsible for the collection and treatment of wastewater from Chehalis, Napavine, Lewis County Sewer District #1 and associated service areas. Wastewater is treated to state and federal standards and discharged to the Chehalis River. The wastewater division also handles the planning, operation, and maintenance of all city wastewater facilities.

Services Provided

WASTEWATER TREATMENT - The division provides wastewater treatment through primary and advanced secondary processes to meet all applicable standards.  Residual solids are treated to state and federal requirements before being recycled via land application. The division performs laboratory analysis, constituent monitoring, process control, biosolids recycling, poplar plantation maintenance, and facility operation and maintenance.

WASTEWATER SYSTEMS OPERATION AND MAINTENANCE - The wastewater division operates and maintains the sanitary sewage collection system. Activities include collection system management, waste reduction, inflow and infiltration reduction, industrial pretreatment management, planning, design and construction.

EQUIPMENT/ELECTRICAL MAINTENANCE - This work includes maintenance of all wastewater system machinery, equipment and facilities, and all associated electrical, electronic and control circuitry.

ADMINISTRATION & PLANNING - This function involves the management and supervision of the various operations and programs of the division.  It also includes planning and reporting efforts, regulatory compliance, capital improvement planning, utility rate studies, capacity analysis, and related functions.