What is the address of Magnolia WWTP?

The address on the plant’s EPA facility record is Brook St, Magnolia, MN 56158, in Rock County. Its coordinates are 43.6424, -96.0639. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Magnolia WWTP treat?

Magnolia WWTP is permitted for a design flow of 0.04 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Magnolia WWTP use?

Klarifi has identified one treatment structure or unit process at the Magnolia facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Magnolia WWTP?

The facility discharges under NPDES permit MNG585190, currently effective, expiring November 2028.

Is Magnolia WWTP in compliance?

Discharge monitoring reports show no violations at Magnolia WWTP in the last three years.

Who operates Magnolia WWTP and how do I contact them?

Magnolia WWTP is a publicly owned treatment works in Magnolia, Minnesota. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Magnolia WWTP

Brook St, Magnolia, MN 56158 · Rock County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.04 MGD

NPDES permit: MNG585190; Effective

Permit expires: November 2028

Population served: 196; CWNS 2022

Magnolia WWTP is a publicly owned wastewater treatment works in Magnolia, Rock County, Minnesota, serving about 196 residents. It discharges under NPDES permit MNG585190 (effective), which expires in November 2028, with 0 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Magnolia WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 0

Effluent violations: 0

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

Key contacts

Decision-makers at Magnolia WWTP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Minnesota

Adrian WWTP

Adrian · 6 mi away

—

Luverne WWTP

Luverne · 7 mi away

0.83 MGD

Ellsworth WWTP

Ellsworth · 9 mi away

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Lismore WWTP

Lismore Township · 9 mi away

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Hardwick WWTP

Hardwick · 11 mi away

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Rushmore WWTP

Rushmore · 13 mi away

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Leota Sanitary District WWTP

Leota · 14 mi away

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Steen WWTP

Steen · 14 mi away

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Magnolia 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 · Filter press · FOG · all terms

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