What treatment technology does Center Junction, City Of STP use?

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

What is the NPDES permit for Center Junction, City Of STP?

The facility discharges under NPDES permit IA0080357, currently effective, expiring September 2030.

Is Center Junction, City Of STP in compliance?

Discharge monitoring reports show 6 violations at Center Junction, City Of STP in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Center Junction, City Of STP and how do I contact them?

Center Junction, City Of STP is a publicly owned treatment works in Center Junction, Iowa. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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Center Junction, City Of STP

Center Junction, IA 52212 · Jones County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: IA0080357; Effective

Permit expires: September 2030

Population served: —; CWNS 2022

Center Junction, City Of STP is a publicly owned wastewater treatment works in Center Junction, Jones County, Iowa. It discharges under NPDES permit IA0080357 (effective), which expires in September 2030, with 6 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Center Junction, City Of STP.

Available with a free Klarifi account

See the full treatment train at Center Junction, City Of STP: 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

2 verified contacts for Center Junction, City Of STP, with validated emails and direct phone numbers.

Unlock 2 verified contacts

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

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Nearby wastewater treatment plants in Iowa

Onslow City Of STP

Onslow · 4 mi away

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Wyoming WWTP

Wyoming · 6 mi away

0.09 MGD

Olin WWTP

Olin · 9 mi away

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Monticello WWTP

Monticello · 10 mi away

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Anamosa WWTP

Anamosa · 11 mi away

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Baldwin WWTP

Baldwin · 11 mi away

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Oxford Junction WWTP

Oxford Junction · 12 mi away

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Cascade Municipal Utilities WWTP

Cascade · 13 mi away

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Center Junction, 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 March 28, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms

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