Wastewater Treatment Plant

The Anacortes Wastewater Treatment Plant, located on T Ave between 4th & 6th Streets, went online on February 17, 1992. At this time the city went to a secondary treatment biological process, that treats suspended and dissolved solids. This process vastly improves the quality of the treated water Anacortes discharges into the Puget Sound. The treatment plant has an average daily flow of 1.89 million gallons and is permitted for up to 4.5 million gallons per day.

Aerial Photo of the Wastewater Treatment Plant

• Organization Chart (PDF)
• Anacortes Rainfall (in inches) this Year, 5 Year and 10 Year Average 

  	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year Total
  2023	1.52	1.71	2.52	1.44									7.19
  5 Year Average	3.75	2.62	2.01	1.68	1.50	1.47	.37	.32	1.88	3.23	4.45	3.98	24.76
  10 Year Average	2.87	2.50	2.07	1.47	1.32	.95	.27	.40	1.46	2.84	3.64	3.15	21.94