BACKGROUND

The City of Rohnert Park’s sewer system has two primary functions which are to first collect the City’s wastewater and then to transport it to the Subregional Water Reclamation System of Santa Rosa for treatment.

The City’s sanitary sewer system includes 83 miles of gravity sewers, 7.5 miles of force mains, 16 inverted siphons, and three pump stations. From the pump stations the wastewater is directed to the Santa Rosa Subregional treatment facility on Llano road.

During a typical 24-hour period the amount of wastewater entering the system fluctuates from 1 to 7 million gallons per day.

The average dry weather wastewater flows are 3.5 MGD (million gallons per day), and up to 15 MGD during winter months.

SUMMARY

SmartCover monitoring data from January through December 2017 indicated that the culprit made an estimated 326 illegal dumps of sewage into the Rohnert Park sewer system.

A criminal complaint was filed alleging that he deprived local government of money by failing to use a waste treatment site to dump sewage. Estimates indicate that he should have paid over $350,000 (and possibly as much as $500,000) to properly dispose of the waste at Santa Rosa’s plant.

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