What is the address of City Of Sibley?

The address on the plant’s EPA facility record is 119 Lake Ave, Sibley, ND 58429, in Barnes County. Its coordinates are 47.2240, -97.9661. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does City Of Sibley treat?

City Of Sibley is permitted for a design flow of 0.001 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does City Of Sibley use?

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

What is the NPDES permit for City Of Sibley?

The facility discharges under NPDES permit NDG123761, currently effective, expiring September 2028.

Is City Of Sibley in compliance?

Discharge monitoring reports show 17 violations at City Of Sibley in the last three years. The full history is available in Klarifi.

Who operates City Of Sibley and how do I contact them?

City Of Sibley is a publicly owned treatment works in Sibley, North Dakota. Klarifi lists 4 verified decision-maker contacts for this facility, available with a free trial.

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City Of Sibley

119 Lake Ave, Sibley, ND 58429 · Barnes County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.001 MGD

NPDES permit: NDG123761; Effective

Permit expires: September 2028

Population served: 35; CWNS 2022

City Of Sibley is a publicly owned wastewater treatment plant in Sibley, Barnes County, North Dakota, serving about 35 residents. It discharges under NPDES permit NDG123761 (effective), which expires in September 2028, with 17 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at City Of Sibley.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 17

Effluent violations: 0

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

Key contacts

4 verified contacts for City Of Sibley, with validated emails and direct phone numbers.

Unlock 4 verified contacts (1 more than shown)

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

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City Of Sibley: 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 February 12, 2025.

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

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