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EVERGREEN LIFT STATION NO. 19 IMPROVEMENT PROJECT
June 13, 2025
EVERGREEN LIFT STATION NO. 19
IMPROVEMENT PROJECT
OWNER: Evergreen County Water & Sewer District
ENGINEER: IMEG Corporation
CONTRACTOR: S&L Underground
PROJECT FUNDING SOURCES & AMOUNTS:
- State Revolving Fund
(EPA/DEQ/DNRC….………………..…$4,060,000
- ARPA……………………………………..…$2,000,000
- Local Resources……………………..……$254,094
TOTAL PROJECT COST: $6,314,094
PROJECT DESCRIPTION
Lift Station Number 19, also known as the Main Lift Station, is the last lift station within the Evergreen Sewer District before wastewater from the system is pumped to the City of Kalispell’s Wastewater Treatment Plant. The lift station is aging and does not currently have an emergency bypass or storage capabilities. Failure of the lift station could result in significant environmental contamination and public health impacts.
This project is the first phase of proposed improvements at the lift station. This phase will include site piping modifications and construction of a new 160,000-gallon concrete wet well/emergency storage tank and concrete metering vault adjacent to the existing lift station. Future phases will include installation of a new wastewater pumps and installation of a back-up power generator.
EVERGREEN INFLOW & INFILTRATION PROJECT
June 13, 2025
EVERGREEN W&S DISTRICT INFLOW AND INFILTRATION
IMPROVEMENTS PROJECT
OWNER: Evergreen County Water & Sewer District
ENGINEER: Jacobs
CONTRACTOR: Lipka Excavating
PROJECT FUNDING SOURCES & AMOUNTS:
- State Revolving Fund
(EPA/DEQ/DNRC….………………..…$511,000
- ARPA……………………………………..…$492,444
- Local Resources……………………..……$133,369
TOTAL PROJECT COST: $1,136,813
PROJECT DESCRIPTION
Inflow and infiltration to a sewer collection system occurs when aging facilities begin to deteriorate. Groundwater infiltration into the Evergreen sewer collection system increases energy consumption and pumping costs and reduces system capacity. Additionally, deteriorated sewer pipe and manholes may allow raw wastewater to exfiltrate into local groundwater, negatively impacting environmental resources. Through field inspections and ranking criteria, the district has identified eighteen (18) existing manholes for replacement in the central area of the district. The manholes were identified as providing the most benefit to cost- for reduction of ground water infiltration into the sewer collection system. Work proposed with this project will occur within existing road right-of-ways and sewer utility easements.
