What is the address of Erie STP?

The address on the plant’s EPA facility record is 7th Avenue And 4th Street, Erie, IL 61250, in Whiteside County. Its coordinates are 41.6506, -90.0718. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Erie STP treat?

Erie STP treats an average of 0.06 MGD and is permitted for a design flow of 0.57 MGD.

What treatment technology does Erie STP use?

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

What is the NPDES permit for Erie STP?

The facility discharges under NPDES permit IL0020303, currently effective, expiring March 2028.

Is Erie STP in compliance?

Discharge monitoring reports show 40 violations at Erie STP in the last three years, 32 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Erie STP and how do I contact them?

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

Try for free Log in

Erie STP

7th Avenue And 4th Street, Erie, IL 61250 · Whiteside County · Publicly Owned Treatment Works

Average flow: 0.06 MGD

Design flow: 0.57 MGD

NPDES permit: IL0020303; Effective

Permit expires: March 2028

Population served: 1,892; CWNS 2022

Erie STP is a publicly owned wastewater treatment works in Erie, Whiteside County, Illinois treating an average of 0.06 million gallons per day against a permitted design capacity of 0.57 MGD, serving about 1,892 residents. It discharges under NPDES permit IL0020303 (effective), which expires in March 2028, with 40 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Erie STP.

Available with a free Klarifi account

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

Create a free account

Compliance snapshot (last 3 years)

Total violations: 40

Effluent violations: 32

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

Key contacts

1 verified contact for Erie STP, with validated emails and direct phone numbers.

Unlock 1 verified contact

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

Try Klarifi free

Nearby wastewater treatment plants in Illinois

Hillsdale Stp, Village Of

Hillsdale · 5 mi away

0.02 MGD

Prophetstown Stp, City Of

Prophetstown · 8 mi away

0.15 MGD

Albany WWTP

Albany · 12 mi away

0.05 MGD

Village Of Cordova - STP

Cordova · 13 mi away

0.03 MGD

Geneseo Stp, City Of

Geneseo · 14 mi away

2.68 MGD

Tampico Stp, Village Of

Tampico · 14 mi away

0.05 MGD

Fulton Wwtp, City Of

Fulton · 15 mi away

0.37 MGD

Atkinson Stp, Village Of

Atkinson · 15 mi away

0.29 MGD

Erie 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 September 25, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms

Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free