What is the address of Siler City WWTP?

The address on the plant’s EPA facility record is Ncsr 1363 US Hwy 64, Siler City, NC 27344, in Chatham County. Its coordinates are 35.7287, -79.4268. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Siler City WWTP treat?

Siler City WWTP treats an average of 2.26 MGD and is permitted for a design flow of 4 MGD.

What treatment technology does Siler City WWTP use?

Klarifi has identified 2 treatment structures and unit processes at the Siler City facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Siler City WWTP?

The facility discharges under NPDES permit NC0026441, currently effective, expiring May 2027.

Is Siler City WWTP in compliance?

Discharge monitoring reports show 20 violations at Siler City WWTP in the last three years, 20 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Siler City WWTP and how do I contact them?

Siler City WWTP is a publicly owned treatment works in Siler City, North Carolina. Klarifi lists 5 verified decision-maker contacts for this facility, available with a free trial.

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Siler City WWTP

Ncsr 1363 US Hwy 64, Siler City, NC 27344 · Chatham County · Publicly Owned Treatment Works

Average flow: 2.26 MGD

Design flow: 4 MGD

NPDES permit: NC0026441; Effective

Permit expires: May 2027

Population served: 8,389; CWNS 2022

Siler City WWTP is a publicly owned wastewater treatment works in Siler City, Chatham County, North Carolina treating an average of 2.26 million gallons per day against a permitted design capacity of 4 MGD, serving about 8,389 residents. It discharges under NPDES permit NC0026441 (effective), which expires in May 2027, with 20 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Siler City WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 20

Effluent violations: 20

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

Key contacts

5 verified contacts for Siler City WWTP, with validated emails and direct phone numbers.

Unlock 5 verified contacts (2 more than shown)

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

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Pittsboro WWTP

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0.06 MGD

Graham WWTP City Of

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Mason Farm WWTP

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Triangle WWTP

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Holly Springs WWTP

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Apex Water Reclamation Facility

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Biscoe WWTP

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Siler City WWTP: 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 16, 2026.

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

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