The Manchester Wastewater Treatment Plant has done it again, earning a perfect performance award for compliance with its state water-quality permit.
The Manchester plant, operated by Kitsap County, remains ahead of the pack, being the only sewage-treatment plant in Washington state with a perfect score since the Department of Ecology launched its Outstanding Performance Awards program in 1995. That’s 23 years.
Port Townsend Wastewater Treatment Plant has maintained perfect performance for 20 years, and six plants have reached that level for 10 consecutive years. For this year alone, 111 treatment plants achieved perfect scores — about a third of all the plants in the state.
