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Toledo STP

1105 SE Fir St, Toledo, OR 97391 · Lincoln County · Publicly Owned Treatment Works

Average flow
0.7 MGD
Design flow
0.73 MGD
NPDES permit
OR0020869
Administratively continued
Permit expires
November 2010
Population served
3,709
CWNS 2022

Toledo STP is a publicly owned wastewater treatment works in Toledo, Lincoln County, Oregon treating an average of 0.7 million gallons per day against a permitted design capacity of 0.73 MGD, serving about 3,709 residents. It discharges under NPDES permit OR0020869 (administratively continued), which expires in November 2010, with 31 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in August 2004.

Treatment technology

4 treatment structures and unit processes identified at Toledo STP.

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Compliance snapshot (last 3 years)

Total violations
31
Effluent violations
11

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

EPA enforcement history

Federal civil enforcement cases, compliance inspections and informal actions recorded for Toledo STP in EPA's ICIS system.

Formal actions
1
0 since FY2020
Penalties assessed
$750
all cases
EPA inspections
0
none on record

Latest case · Aug 2004

CITY OF TOLEDO, OREGON

Administrative order · CAA, General Duty/Accidental Release · Final Order With Penalty · Penalty $750

Source: EPA ECHO, civil enforcement case 10-2001-0111.

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Every action against Toledo STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

Decision-makers at Toledo STP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Oregon

Siletz STP

Siletz · 8 mi away

0.19 MGD

Waldport WWTP

Waldport · 14 mi away

0.2 MGD

Depoe Bay STP

Depoe Bay · 15 mi away

0.55 MGD

Salishan Sanitary District Treatment Plant

Gleneden Beach · 20 mi away

0.25 MGD

Yachats STP

Yachats · 22 mi away

0.18 MGD

Lincoln City STP

Lincoln City · 22 mi away

2.51 MGD

Philomath WWTP

Corvallis · 29 mi away

0.75 MGD

Falls City STP

Falls City · 30 mi away

0.04 MGD

Toledo 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 October 26, 2026; facility record last updated August 19, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms


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