What is the address of Auburn City Of STP?

The address on the plant’s EPA facility record is 1/3 Mile Northwest Of Xavier A, Auburn, IA 51433, in Sac County. Its coordinates are 42.2654, -94.8801. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Auburn City Of STP treat?

Auburn City Of STP is permitted for a design flow of 0.06 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Auburn City Of STP use?

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

What is the NPDES permit for Auburn City Of STP?

The facility discharges under NPDES permit IA0057029, currently effective, expiring October 2026.

Is Auburn City Of STP in compliance?

Discharge monitoring reports show 1 violation at Auburn City Of STP in the last three years, 1 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Auburn City Of STP and how do I contact them?

Auburn City Of STP is a publicly owned treatment works in Auburn, Iowa. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Auburn City Of STP

1/3 Mile Northwest Of Xavier A, Auburn, IA 51433 · Sac County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.06 MGD

NPDES permit: IA0057029; Effective

Permit expires: October 2026

Population served: 265; CWNS 2022

Auburn City Of STP is a publicly owned wastewater treatment works in Auburn, Sac County, Iowa, serving about 265 residents. It discharges under NPDES permit IA0057029 (effective), which expires in October 2026, with 1 recorded violation in the last three years.

Treatment technology

One treatment structure or unit process identified at Auburn City Of STP.

Available with a free Klarifi account

See the full treatment train at Auburn City Of STP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 1

Effluent violations: 1

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

Key contacts

1 verified contact for Auburn City Of STP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Auburn City Of STP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Iowa

Lake City WWTP

Lake City · 6 mi away

0.27 MGD

Breda WWTP

Breda · 7 mi away

—

Lake View City Of STP

Lake View · 9 mi away

0.21 MGD

Lidderdale WWTP

Lidderdale · 10 mi away

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Wall Lake City Of STP

Wall Lake · 11 mi away

0.14 MGD

Lytton City Of STP

Lytton · 11 mi away

0.17 MGD

Lanesboro City Of STP

Lanesboro · 11 mi away

—

Sac City WWTP

Sac City · 11 mi away

0.24 MGD

Auburn City Of STP: 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 August 11, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms

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