STATE OF WISCONSIN DEPARTMENT OF NATURAL RESOURCES PUBLIC NOTICE OF INTENT TO REISSUE A WISCONSIN POLLUTANT DISCHARGE ELIMINATION SYSTEM (WPDES) PERMIT No. WI-0030490-09-0 Permittee: City of Waupaca, 111 S Main St, Waupaca, WI, 54981 Facility Where Discharge Occurs: Waupaca Wastewater Treatment Facility, 325 S. Oborn Street, Waupaca, Wisconsin Receiving Water And Location: Waupaca River in Waupaca River of Wolf River in Waupaca County Brief Facility Description: The City of Waupaca wastewater treatment facility (WWTF) provides wastewater treatment for the City of Waupaca, Chain ‘O Lakes Sanitary District, Gusmer Enterprises, and the King Veteran’s Home along with Waupaca Foundry landfill leachate, septage and grease trap waste. The WWTF is designed to treat an annual average flow of 1.5 million gallons per day (MGD) and a monthly max flow of 1.85 MGD. Treatment processes include preliminary treatment by mechanical fine screening and grit removal, primary clarification, activated sludge secondary treatment and secondary clarification. Phosphorus and ammonia removal are accomplished with biological nutrient removal. Ferrous sulfate is added to assist with phosphorus removal when necessary. Seasonally, final clarifier effluent is disinfected using sodium hypochlorite solution and required dechlorination is achieved with sodium bisulfite. Effluent is discharged on a continuous basis via Outfall 001 to the Waupaca River, approx. 0.5 mi downstream of the Shearer St. Bridge. Primary sludge and waste activated sludge are stabilized in a mixed, heated, mesophilic anaerobic digester. Liquid stabilized sludge is thickened on a gravity belt thickener and stored on-site in a storage tank with a capacity of approximately 1.6 million gallons. Sludge from the holding tank is land applied during spring and fall by a contract hauler. Permit Drafter’s Name, Address, Phone and Email: Ashley Clark, 2984 Shawano Ave, Green Bay, WI, 54313, (920) 857-0450, Ashleym.Clark@wisconsin.gov Basin Engineer’s Name, Address, Phone and Email: Barti Oumarou, 625 E County Road Y, Suite 700, Oshkosh, WI 54901, (920) 424-4013, Barti.Oumarou@wisconsin.gov The Department has tentatively decided that the above-specified WPDES permit should be reissued. Persons wishing to comment on or object to the proposed permit action, or to request a public hearing, may write to the Department of Natural Resources at the above-named permit drafter’s address. All comments or suggestions received no later than 30 days after the publication date of this public notice will be considered along with other information on file in making a final decision regarding the permit. Anyone providing comments in response to this public notice will receive a notification of the Department’s final decision when the permit is issued. Where designated as a reviewable surface water discharge permit, the U.S. Environmental Protection Agency is allowed up to 90 days to submit comments or objections regarding this permit determination. If no comments are received on the proposed permit from anyone, including U.S. EPA, the permit will be issued as proposed. The Department may schedule a public informational hearing if requested by any person and shall schedule a public informational hearing if a petition requesting a hearing is received from 5 or more persons or if response to this notice indicates significant public interest pursuant to s. 283.49, Wis. Stats. Requests for a public informational hearing shall state the following: the name and address of the person(s) requesting the hearing; the interest in the proposed permit of the person(s) requesting the hearing; the reasons for the request; and the issues proposed to be considered at the hearing. Information on file for this permit action, including the draft permit, fact sheet and permit application, may be inspected and copied at either the above-named permit drafter’s office or the above named basin engineer’s office, Monday through Friday (except holidays), between 9:00 a.m. and 3:30 p.m. Please call the permit drafter or basin engineer for directions to their office location, if necessary. Information on this permit action may also be obtained by calling the permit drafter at (920) 857-0450 or by writing to the Department. Reasonable costs (15 cents per page for copies and 7 cents per page for scanning) will be charged for information in the file other than the public notice, permit and fact sheet. Permit information is also available on the internet at: http://dnr.wi.gov/topic/waste water/PublicNotices.html . Pursuant to the Americans with Disabilities Act, reasonable accommodation, including the provision of informational material in an alternative format, will be made to qualified individuals upon request. NAME OF PUBLISHING NEWSPAPER: Waupaca County Post ADDRESS OF PUBLISHING NEWSPAPER: 600 Industrial Dr. Waupaca, WI 54981 Date Notice Issued: February 19, 2026 WNAXLP