How much wastewater does Lafayette STP treat?

Lafayette STP treats an average of 0.27 MGD.

What treatment technology does Lafayette STP use?

Klarifi has identified uncovered lagoons at the Lafayette facility.

What is the NPDES permit for Lafayette STP?

The facility discharges under NPDES permit OR0022551, currently effective, expiring March 2031.

Is Lafayette STP in compliance?

Discharge monitoring reports show 8 violations at Lafayette STP in the last three years, 4 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Lafayette STP and how do I contact them?

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

Try for free Log in

Lafayette STP

Lafayette, OR · Yamhill County · Publicly Owned Treatment Works

Average flow: 0.27 MGD

Design flow: —

NPDES permit: OR0022551; Effective

Permit expires: March 2031

Population served: 4,338; CWNS 2022

Lafayette STP is a publicly owned wastewater treatment works in Lafayette, Yamhill County, Oregon treating an average of 0.27 million gallons per day, serving about 4,338 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit OR0022551 (effective), which expires in March 2031, with 8 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Uncovered lagoons

Unlock

Unlock exact unit counts →

Compliance snapshot (last 3 years)

Total violations: 8

Effluent violations: 4

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

Key contacts

1 verified contact for Lafayette STP, with validated emails and direct phone numbers.

Unlock 1 verified contact

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

Try Klarifi free

Nearby wastewater treatment plants in Oregon

Dayton STP

Dayton · 2 mi away

0.16 MGD

Mcminnville WWTP

Mcminnville · 3 mi away

2.73 MGD

Carlton STP

Carlton · 5 mi away

0.2 MGD

Dundee STP

Dundee · 6 mi away

—

Yamhill STP

Yamhill · 7 mi away

0.07 MGD

Amity STP

Amity · 9 mi away

—

Gervais STP

Gervais · 14 mi away

0.13 MGD

Hubbard STP

Hubbard · 15 mi away

0.17 MGD

Lafayette 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 September 11, 2026; facility record last updated November 18, 2025.

Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free