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Charlotte Water SSO reaches nearly 30 year low
Charlotte Water successfully collected and treated more than 29 billion gallons of the community’s wastewater during the fiscal year that ended June 30, 2015. There were 177 sanitary sewer overflows (SSOs) in our community, a decrease of 70 spills compared to the year before. This is the lowest number of spills since 1986 (163). In fact, the number of spills per 100 miles of pipe continued to decline from 10.8 in 2007 to 4.2 spills in fiscal year 2015. An estimated 200,352 gallons spilled.

The continued reduction in SSOs since fiscal year 2007 is due in large part to the efforts of the SSO Reduction Program established in fiscal year 2004. The program has been successful due in large part to sewer system evaluation, replacement and rehabilitation, sewer line cleaning, root and grease control, easement clearing, capacity assurance, and sewer relief installation.

Charlotte Water spends, on average, about $10M - $12M per year on the Sewer Rehabilitation Program which includes replacing or inserting a new lining in older pipes. Over the past decade, Charlotte Water has spent in excess of $100M on design and construction of several relief sewers to increase system capacity. In the past 3 years alone, Charlotte Water completed the following system improvements:
• 146,000 ft. or 28 mi. of sewer replaced and rehabilitated
• 508 manholes replaced and rehabilitated
• 972 service laterals replaced
• 3,330,000 ft. or 632 mi. sewer treated with root control herbicide
• 17,300,000 ft. or 3,279 mi. of sewer cleaned

Wastewater overflows are still a community challenge. “Most overflows can be prevented at the kitchen sink,” said spokesperson Cam Coley. “Customers can help protect the environment – and their plumbing - by pouring fats, oils, and grease in a disposable jar and pitching it into the trash, instead of down the drain.”

 

In the September water bill, customers will receive a summary of the annual wastewater report. The reports are available here.

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