Sanitary Sewer Overflow, Aug. 14

CB release – (Sunday, August 12, 2018), around noon, the City of Coos Bay experienced a sanitary sewer overflow. It is believed the overflow was caused by a blockage in the system.  The blockage resulted in sewer backing up and overflowing near the intersection of Southwestern Boulevard and Montana Avenue.  The crews mobilized and within one hour they had cleaned the line, cleaned the site surface, and prevented approximately 200 gallons from entering the storm sewer system.  As a result, no sewage entered the downstream receiving waters.  This overflow was reported to the Oregon Emergency Response System. Blockages in sanitary sewer systems can be caused for a number of reasons.  However, most blockages are due to items and material that do not belong in the sewer.  Of the most common of these items are fats, oil, and grease (FOG) that are animal and vegetable-based.  Over time, FOG that enters into the system via a kitchen sink can build up in the sanitary sewer system.  This build up will result in constricting flow.  It can cause overflows and impacts, and it interferes with the treatment process at the plant.  You can help eliminate this problem by properly disposing of cooking oil and grease.  You can place cooled cooking oil, poultry fats, and meat fats in a sealed non-recyclable container and discard it with your regular garbage.  You can also use paper towels to wipe residual grease or oil off dishes, pots, and pans prior to washing them.  These easy practices can have a big impact!  Any questions can be directed to the City of Coos Bay Public Works Department at 541-269-8918.