DALCO AND ORBIO ® SPLIT STREAM TECHNOLOGY HELP SUPERIOR SCHOOL DISTRICT ENHANCE SUSTAINABILITY Covering approximately 549 square miles, the School District of Superior Wisconsin includes the City of Superior, plus four towns and two villages. The district has six elementary schools, a middle school and a high school serving nearly 5,000 students, plus five other buildings that are cleaned by custodial staff. One of the school district’s goa

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