Meeting the Challenge of Sewer System Upgrades

Sonoma tackles trunk main replacement to cut I&I and maintain community health

Meeting the Challenge of Sewer System Upgrades

Workers with contractor Mountain Cascade Inc. construct the jacking pit for the Sonoma Valley County Sanitation District sewer trunk main replacement 5A project near Sonoma, California.

PHOTOGRAPHY BY DAVID ELKINS

For the last 20 years, the Sonoma Valley County Sanitation District has been methodically replacing the system’s sewer trunk main. The trunk line was, to put it simply, old and leaky. By the end of the summer, the district will have refurbished some 6 miles of the main with less...

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