What is the address of Martelle City Of STP?

The address on the plant’s EPA facility record is 0.5 Mile E Of Martelle & Taylor Intersection, Martelle, IA 52305, in Jones County. Its coordinates are 42.0176, -91.3734. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Martelle City Of STP use?

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

What is the NPDES permit for Martelle City Of STP?

The facility discharges under NPDES permit IA0062987, currently effective, expiring April 2028.

Is Martelle City Of STP in compliance?

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

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

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

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Martelle City Of STP

0.5 Mile E Of Martelle & Taylor Intersection, Martelle, IA 52305 · Jones County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: IA0062987; Effective

Permit expires: April 2028

Population served: 249; CWNS 2022

Martelle City Of STP is a publicly owned wastewater treatment works in Martelle, Jones County, Iowa, serving about 249 residents. It discharges under NPDES permit IA0062987 (effective), which expires in April 2028, with 6 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

See the full treatment train at Martelle 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 Martelle 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 Martelle City Of STP, plus the full compliance history and discharge data.

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Martelle 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 10, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms

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