How much wastewater does Steamboat Rock City Of STP treat?

Steamboat Rock City Of STP treats an average of 0.02 MGD and is permitted for a design flow of 0.12 MGD.

What treatment technology does Steamboat Rock City Of STP use?

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

What is the NPDES permit for Steamboat Rock City Of STP?

The facility discharges under NPDES permit IA0033324, currently effective, expiring October 2030.

Is Steamboat Rock City Of STP in compliance?

Discharge monitoring reports show 160 violations at Steamboat Rock City Of STP in the last three years, 144 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

Try for free Log in

Steamboat Rock City Of STP

Steamboat Rock, IA 50672 · Hardin County · Publicly Owned Treatment Works

Average flow: 0.02 MGD

Design flow: 0.12 MGD

NPDES permit: IA0033324; Effective

Permit expires: October 2030

Population served: 264; CWNS 2022

Steamboat Rock City Of STP is a publicly owned wastewater treatment works in Steamboat Rock, Hardin County, Iowa treating an average of 0.02 million gallons per day against a permitted design capacity of 0.12 MGD, serving about 264 residents. It discharges under NPDES permit IA0033324 (effective), which expires in October 2030, with 160 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

Create a free account

Compliance snapshot (last 3 years)

Total violations: 160

Effluent violations: 144

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

Key contacts

1 verified contact for Steamboat Rock 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 Steamboat Rock City Of STP, plus the full compliance history and discharge data.

Try Klarifi free

Nearby wastewater treatment plants in Iowa

Eldora WWTP

Eldora · 3 mi away

0.59 MGD

Wellsburg WWTP

Wellsburg · 7 mi away

0.08 MGD

Ackley WWTP

Ackley · 10 mi away

0.59 MGD

Whitten WWTP Central Iowa Water Assn

Whitten · 11 mi away

—

Union WWTP

Union · 12 mi away

—

Iowa Falls WWTP

Iowa Falls · 12 mi away

1.02 MGD

Hubbard City Of STP

Hubbard · 14 mi away

—

Holland WWTP

Holland · 14 mi away

—

Steamboat Rock 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 November 26, 2025.

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

Try Klarifi for free

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

Try for free