Port Orchard public works officials on Wednesday will answer questions about a major, long-term capital project to replace degrading septic systems within McCormick Woods.
A meeting is set for 6 p.m., with a second meeting at 6 p.m. Feb. 5, both at city hall, 216 Prospect Street.
The development’s 605 poorly functioning septic systems use hybrid technology. The “STEP” tanks — for septic tank effluent pumping systems — draw off liquid effluent to the city sewer line. Solids remain in the tank.
The STEP systems were approved for lots too small for regular septic systems by Kitsap County in the 1980s, when McCormick Woods was in the planning stages. Because of how the system works, decomposition of waste starts in the tank, causing strong hydrogen sulfide odors and corrosion at the pump station. Corrosion from the STEP systems threatens the integrity of sewer lines and equipment throughout the city, Public Works Director Mark Dorsey has said.
The city will swap out all “STEP” systems within the development over the next several years. Replacement of the septics has been on the city’s capital sewer projects plan since 2010 and will be paid for out of a sewer rate hike implemented that year.
The need to replace the STEP tanks has nothing to do with the city’s 2009 annexation of McCormick Woods. The city inherited maintenance of the STEP systems from Kitsap County in 1994, when a community drain field was replaced by a sewer line jointly owned by Port Orchard and what is now West Sound Utility District.
The STEP systems’ malfunction also had nothing to do with a sewer and water rate increase in 2009, shortly after the annexation. Before becoming part of the city, McCormick Woods was subject to a 50 percent surcharge on sewer and water services provided by the city. Once the annexation was complete, the surcharge went away, and the entire city — including McCormick Woods residents — had to absorb the loss of revenue.
For more information, contact public works at (360) 876-4991.