BACKGROUND

The City of Vacaville sewer collection system is maintained by the Vacaville Utilities Department (VUD). Vacaville’s service area also includes the Town of Elmira. The collection system includes 284 miles of gravity sewer pipes, 2 miles of force mains, 8 lift stations, 5,859 manholes, and the Easterly Wastewater Treatment Plant that handles nearly 8 million gallons (MGD) a day before it is discharged into the Old Alamo Creek. The treatment plant operates under a National Pollutant Discharge Elimination System (NPDES) permit. VUD also has 41,686 sewer connections and serves a combined population of more than 102,000.

SUMMARY

VUD gained the real-time sewer monitoring it needed for visibility into its sewer collection and stormwater systems and the data analytics for trending and comparisons for informed decisions about daily operations and capital improvement planning. The H2S sensors improved odor and corrosion control, enabling precise chemical dosing to reduce costs and extend the life of its sewer assets. VUD has saved time and money using real-time sewer-monitoring technology by reducing SSOs, improving response times and optimizing cleaning schedules. The department also has improved community relations and reduced fines by better protecting the environment.

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