What is the address of Chester City Of STP?

The address on the plant’s EPA facility record is River St. 1/6 Mile East Of Par, Chester, IA 52134, in Howard County. Its coordinates are 43.4881, -92.3514. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Chester City Of STP use?

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

What is the NPDES permit for Chester City Of STP?

The facility discharges under NPDES permit IA0020931, currently effective, expiring October 2029.

Is Chester City Of STP in compliance?

Discharge monitoring reports show no violations at Chester City Of STP in the last three years.

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

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

Try for free Log in

Chester City Of STP

River St. 1/6 Mile East Of Par, Chester, IA 52134 · Howard County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: IA0020931; Effective

Permit expires: October 2029

Population served: 139; CWNS 2022

Chester City Of STP is a publicly owned wastewater treatment works in Chester, Howard County, Iowa, serving about 139 residents. It discharges under NPDES permit IA0020931 (effective), which expires in October 2029, with 0 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

Create a free account

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

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

Unlock 1 verified contact

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

Try Klarifi free

Nearby wastewater treatment plants in Iowa

Lime Springs WWTP

Lime Springs · 5 mi away

0.23 MGD

Riceville City Of STP

Riceville · 14 mi away

—

Cresco WWTP

Cresco · 14 mi away

0.53 MGD

Elma WWTP

Elma · 18 mi away

0.08 MGD

Stacyville, City Of STP

Stacyville · 22 mi away

—

Ridgeway City Of STP

Ridgeway · 23 mi away

0.02 MGD

Protivin WWTP

Protivin · 23 mi away

—

Osage City Of STP

Osage · 28 mi away

0.41 MGD

Chester 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 September 14, 2026.

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

Try Klarifi for free

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

Try for free