Well Water Testing Program

Advisory for Property Taxpayers Mailing Tax Payments: USPS policy change on postmarks may affect tax payments. In August 2025, the U.S. Postal Service changed when postmarks are affixed to incoming mail. Instead of being affixed when the item is first received by the post office, postmarks are now stamped at regional sorting centers. Please be aware that this change may affect when your envelope containing your tax payment is postmarked. Property tax payments received by mail are considerd timely based off of the USPS postmark. To avoid a tax payment becoming delinquent due to the postmark change, consider the following options: If you plan to pay your property taxes by mail, mail your payment earlier, or, use a service such as certified mail. Make a payment in-person during the hours of M-Th 9am-3pm, and Fridays 11am-2pm through January 30th, except for holidays. Online payment can be made here: https://townofmerrimac.net/taxes-property-info/

Posted on May 8, 2025, Edited May 8, 2025 by clerk

The Towns of Greenfield, Merrimac, and Sumpter, in collaboration with UW-Madison Extension and Sauk County, are offering a Well Water Testing Program.

1. Choose from three test options.

2. Pick up and pay for your test kit at the Merrimac Town Hall on Friday, June 13 from 4pm-6pm or Saturday, June 14 from 9-11am.

3. Collect your sample on Monday, June 16 and return the same day between 7-9am or 4-6pm.

4. Pick up your test results at an educational program on Tuesday, July 29 from 5:30-7:30pm at the Sauk County West Square Building, 505 Broadway, Baraboo, WI 53913. Those unable to attend will receive results by mail.

See the Well Water Testing Program Flyer for more information.