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Anna Stw, City Of

1020 North Lime Kiln Road, Anna, IL 62906 · Union County · Publicly Owned Treatment Works

Average flow
0.38 MGD
Design flow
1.65 MGD
NPDES permit
IL0027481
Effective
Permit expires
December 2028
Population served
5,114
CWNS 2022

Anna Stw, City Of is a publicly owned wastewater treatment plant in Anna, Union County, Illinois treating an average of 0.38 million gallons per day against a permitted design capacity of 1.65 MGD, serving about 5,114 residents. It discharges under NPDES permit IL0027481 (effective), which expires in December 2028, with 25 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Anna Stw, City Of.

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Compliance snapshot (last 3 years)

Total violations
25
Effluent violations
25

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

Key contacts

2 verified contacts for Anna Stw, City Of, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Illinois

Cobden Stp, Village Of

Cobden · 3 mi away

0.09 MGD

Jonesboro Stp, City Of

Jonesboro · 4 mi away

0.12 MGD

Alto Pass Stp, Village Of

Alto Pass · 7 mi away

0.0048 MGD

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Dongola Stp, Village Of

Dongola · 9 mi away

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Buncombe Stp, Village Of

Buncombe · 14 mi away

0.04 MGD

Ullin Stp, Village Of

Ullin · 14 mi away

0.0089 MGD

Perks Stp, County Of Pulaski

Perks · 15 mi away

0.0031 MGD

Anna Stw, City Of: 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 7, 2025.

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


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