City of Saint Helena - Wastewater Treatment

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The Wastewater Treatment division oversees wastewater treatment and disposition for Saint Helena. It treats half a million gallons per day on average during the dry season and 3 million during winter peaks. The plant is managed by three state-certified wastewater treatment operators. 
1 Thomann Ln., St Helena, CA 94574
(707) 967-2878
  • Hours: Mon - Fri, 7am - 3pm; Sat, Sun, closed
  • Website: http://www.ci.st-helena.ca.us/content/wastewater
  • Accessible: yes
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