Map for TriCo Regional Sewer Utility Map for TriCo Regional Sewer Utility Search | Advanced Search | New Members | Coupons and Discounts | All Categories Government & Education >> Government TriCo Regional Sewer Utility 7236 Mayflower Park DriveZionsville, IN 46077 | directions Drew Williams (317) 844-9200 | fax: (317) 844-9203 Visit Site If your business isn't here, contact us today to get listed!