What is the address of Maynard WWTP?

The address on the plant’s EPA facility record is Highway 23& Minnie St, Maynard, MN 56260, in Chippewa County. Its coordinates are 44.9004, -95.4700. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Maynard WWTP treat?

Maynard WWTP treats an average of 0.04 MGD and is permitted for a design flow of 0.15 MGD.

What treatment technology does Maynard WWTP use?

Klarifi has identified 2 treatment structures and unit processes at the Maynard facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Maynard WWTP?

The facility discharges under NPDES permit MN0056588, currently expired, expiring April 2026.

Is Maynard WWTP in compliance?

Discharge monitoring reports show 6 violations at Maynard WWTP in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Maynard WWTP and how do I contact them?

Maynard WWTP is a publicly owned treatment works in Maynard, Minnesota. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Maynard WWTP

Highway 23& Minnie St, Maynard, MN 56260 · Chippewa County · Publicly Owned Treatment Works

Average flow: 0.04 MGD

Design flow: 0.15 MGD

NPDES permit: MN0056588; Expired

Permit expires: April 2026

Population served: 319; CWNS 2022

Maynard WWTP is a publicly owned wastewater treatment works in Maynard, Chippewa County, Minnesota treating an average of 0.04 million gallons per day against a permitted design capacity of 0.15 MGD, serving about 319 residents. It discharges under NPDES permit MN0056588 (expired), which expires in April 2026, with 6 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Maynard WWTP.

Available with a free Klarifi account

See the full treatment train at Maynard WWTP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 6

Effluent violations: 6

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

1 verified contact for Maynard WWTP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Maynard WWTP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Minnesota

Clara City WWTP

Clara City · 6 mi away

0.19 MGD

Granite Falls WWTP

Granite Falls · 7 mi away

0.34 MGD

Sacred Heart WWTP

Sacred Heart · 10 mi away

0.05 MGD

Montevideo WWTP

Montevideo · 13 mi away

0.88 MGD

Raymond

Raymond · 14 mi away

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Renville WWTP

Renville · 15 mi away

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Hanley Falls WWTP

Hanley Falls · 16 mi away

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Wood Lake WWTP

Wood Lake Township · 18 mi away

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Maynard WWTP: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026; facility record last updated November 6, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms

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