photo: Bruce Andre Photography

1973

Liberty Lake Sewer District formed by a vote of residents.

1978

The Liberty Lake Sewer District acquired water from Liberty Lake Utilities. District name changed to Liberty Lake Sewer and Water District.

1982

The construction of community’s inaugural wastewater treatment plant was completed.

1989

LLSWD passed resolution banning phosphorus in laundry detergent (bans on automatic dishwasher detergent and lawn fertilizer would come in later years), predating similar national, state and company actions in its wake.