What is the address of Silver City, City Of STP?

The address on the plant’s EPA facility record is : 1/2 Mile North & East Of Downey Ave. And Main St., Silver City, IA 51571, in Mills County. Its coordinates are 41.1242, -95.6335. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Silver City, City Of STP treat?

Silver City, City Of STP is permitted for a design flow of 0.04 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Silver City, City Of STP use?

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

What is the NPDES permit for Silver City, City Of STP?

The facility discharges under NPDES permit IA0079774, currently effective, expiring May 2027.

Is Silver City, City Of STP in compliance?

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

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

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

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Silver City, City Of STP

: 1/2 Mile North & East Of Downey Ave. And Main St., Silver City, IA 51571 · Mills County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.04 MGD

NPDES permit: IA0079774; Effective

Permit expires: May 2027

Population served: 245; CWNS 2022

Silver City, City Of STP is a publicly owned wastewater treatment works in Silver City, Mills County, Iowa, serving about 245 residents. It discharges under NPDES permit IA0079774 (effective), which expires in May 2027, with 0 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

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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 Silver City, City Of STP, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Iowa

Mineola City Of STP

Mineola · 3 mi away

—

Treynor City Of STP Northwest

Treynor · 8 mi away

0.07 MGD

Malvern City Of STP

Malvern · 9 mi away

0.17 MGD

Henderson City Of STP

Henderson · 10 mi away

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Council Bluffs City Of STP

Council Bluffs · 11 mi away

8.21 MGD

Macedonia City Of STP

Macedonia · 11 mi away

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Carson City Of STP

Carson · 13 mi away

0.07 MGD

Emerson City Of STP

Emerson · 14 mi away

—

Silver City, 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 March 28, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms

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