What is the address of Lewiston City?

The address on the plant’s EPA facility record is 59 South Main Street, Lewiston, UT 84320, in Cache County. Its coordinates are 41.9684, -111.8247. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Lewiston City treat?

Lewiston City is permitted for a design flow of 0.11 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Lewiston City use?

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

What is the NPDES permit for Lewiston City?

The facility discharges under NPDES permit UT0020214, currently effective, expiring July 2028.

Is Lewiston City in compliance?

Discharge monitoring reports show 5 violations at Lewiston City in the last three years, 5 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Lewiston City and how do I contact them?

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

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Lewiston City

59 South Main Street, Lewiston, UT 84320 · Cache County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.11 MGD

NPDES permit: UT0020214; Effective

Permit expires: July 2028

Population served: 1,050; CWNS 2022

Lewiston City is a publicly owned wastewater treatment plant in Lewiston, Cache County, Utah, serving about 1,050 residents. It discharges under NPDES permit UT0020214 (effective), which expires in July 2028, with 5 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Lewiston City.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 5

Effluent violations: 5

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

Key contacts

2 verified contacts for Lewiston City, with validated emails and direct phone numbers.

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

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Lewiston City: 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 6, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms

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