Saginaw Water and Wastewater Treatment Plant - National Pollutant Discharge Elimination System Permit No. MI-0058582-2

Sep 29, 2026

Authorization under the National Pollutant Discharge Elimination System allows the Saginaw Chippewa Indian Tribe of Michigan to discharge treated municipal wastewater from the Saginaw Water and Wastewater Treatment Plant in Standish, Michigan to an unnamed tributary to Saginaw Bay of Lake Huron. The permit outlines expiration and renewal submission timelines, establishes monitoring and effluent limitations by parameter at Outfall 001, and specifies regular reporting requirements and operational details of the MBR process, filtration, UV disinfection, and sludge handling.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages59

Reading Time2 h 29 min

AccessFree to download

Authorization to Discharge

Expiration and Renewal Requirements

Treatment Facility Description

Influent Screening and MBR Process

Phosphorus Removal and Filtration

UV Disinfection and Discharge Options

Summary of Regular Reporting

Informational Reporting Items

Section A: Limitations and Monitoring Requirements

Final Effluent Limitations for Monitoring Point 001A

Draft 1/27/2025 REISSUANCE Part I Page I-1 Permit No. MI-0058582-2 AUTHORIZATION TO DISCHARGE UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of the Clean Water Act, as amended, the Saginaw Chippewa Indian Tribe of Michigan is authorized by the United States Environmental Protection Agency, Region 5, to discharge from the Saganing Water and Wastewater Treatment Plant located at 2600 East Worth Road, Standish, Michigan, Arenac County to an unnamed tributary to Saginaw Bay of Lake Huron, in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, and III hereof. This permit and the authorization to discharge shall expire at midnight, [insert ~5 years from date of signature] . The permittee shall not discharge after the above date of expiration. In order to receive authorization to discharge beyond the date of expiration, the permittee shall submit such information and forms as are required by the EPA no later than 180 days prior to the above date of expiration. This permit shall become effective on the date of signature. X Tera L. Fong Director, Water Division Treatment Facility Description: There are three influent pumps that send the water to a 2 millimeter (mm) fine screen; an automatic sampler is located in between the pumps and drum screen. Wastewater is then gravity fed into one of two membrane bioreactor (MBR) units. The water is then pumped through the three chambers located in the MBR unit where Aluminum Sulfate is added for phosphorus removal. Mixed liquor is then pumped into the filter unit located at the head of the MBR where it is filtered out at approximately 75 gallons per minute. Treated water then flows through a UV disinfection unit where an automatic sampler is located. Water can be diverted into ponds around the building and/or has the option of discharging through Outfall 001 (Lat: 43.921478; Long: -83 .906254) to an unnamed tributary to Saginaw Bay of Lake Huron. The plant has a design flow of 0.4 million gallons per day (mgd) . At this time, the plant only processes approximately 0.025 mgd with an average of 1500 gallons of sludge wasted. The sludge is wasted from the filter area of the MBR with storage tanks located outside. The sludge is allowed to settle and the decant is brought back into the headworks. The sludge is ultimately land application. Summary of Regular Reporting FOR INFORMATIONAL PURPOSES ONLY | Description | Due Date | Location | | --- | --- | --- | | Additional Monitoring Data | At time of submitting renewal application | Part I.A.4 | | Pollutant Minimization Program for Mercury Status Report | By January 31, each year | Part I.A.5 | | Wastewater Discharge Monitoring Report Forms (electronically) | Quarterly: by April 21; by July 21; by October 21; by January 21, each year (electronically) | Part I.A.7 | | Operation and
Maintenance Plan Report | By January 31, each year | Part I.A.8. b | | Sewage Sludge Monitoring Report Forms
(electronically) | By February 19, each year | Part III | Section A. Limitations and Monitoring Requirements 1. Final Effluent Limitations, Monitoring Point 001A During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge treated municipal wastewater from Monitoring Point 001A through Outfall 001. Outfall 001 discharges to an unnamed tributary to Saginaw Bay of Lake Huron. Such discharge shall be limited and monitored by the permittee as specified below. Parameter Flow Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monthly Weekly Daily Monthly Weekly Daily Average Average Maximum Units Average Average Maximum (report) --- (report) MGD --- --- --- Units --- Frequency of Analysis Daily Sample Type Report Total Daily Flow Carbonaceous Biochemica

FAQs

Who is authorized to discharge under Permit No. MI-0058582-2?

The Saginaw Chippewa Indian Tribe of Michigan is authorized by the U.S. Environmental Protection Agency, Region 5, to discharge treated wastewater under the permit conditions.

What is the discharge location and receiving water for Outfall 001?

The permit authorizes discharge from Monitoring Point 001A through Outfall 001 to an unnamed tributary to Saginaw Bay of Lake Huron.

When does the permit authorization expire, and how can authorization continue?

Authorization expires at midnight on the date stated in the permit. To receive authorization beyond that date, the permittee must submit the required information and forms no later than 180 days before expiration.

Sep 29, 2026

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