What is the address of Thornton, City Of?

The address on the plant’s EPA facility record is 1616 Garwood Road, Thornton, AR 71766, in Calhoun County. Its coordinates are 33.7617, -92.4901. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Thornton, City Of treat?

Thornton, City Of treats an average of 0.02 MGD and is permitted for a design flow of 0.05 MGD.

What treatment technology does Thornton, City Of use?

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

What is the NPDES permit for Thornton, City Of?

The facility discharges under NPDES permit AR0035661, currently effective, expiring July 2029.

Is Thornton, City Of in compliance?

Discharge monitoring reports show 20 violations at Thornton, City Of in the last three years, 5 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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Thornton, City Of

1616 Garwood Road, Thornton, AR 71766 · Calhoun County · Publicly Owned Treatment Works

Average flow: 0.02 MGD

Design flow: 0.05 MGD

NPDES permit: AR0035661; Effective

Permit expires: July 2029

Population served: 340; CWNS 2022

Thornton, City Of is a publicly owned wastewater treatment plant in Thornton, Calhoun County, Arkansas treating an average of 0.02 million gallons per day against a permitted design capacity of 0.05 MGD, serving about 340 residents. It discharges under NPDES permit AR0035661 (effective), which expires in July 2029, with 20 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Thornton, City Of.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 20

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 Thornton, City Of, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Arkansas

Fordyce, City Of

Fordyce · 7 mi away

0.48 MGD

Bearden WWTP

Bearden · 9 mi away

0.09 MGD

Tinsman, Ar Wastewater Treatment Facility

Hampton · 12 mi away

0.0026 MGD

Kingsland WWTP

Kingsland · 14 mi away

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Hampton, City Of

Hampton · 16 mi away

0.2 MGD

Banks, City Of

Banks · 18 mi away

0.0028 MGD

Harrell WWTP

Harrell · 19 mi away

0.06 MGD

Carthage WWTP

Carthage · 21 mi away

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Thornton, City Of: 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 August 13, 2026.

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

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