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Sedalia Southeast WWTP

Goodwill Chapel Rd, Sedalia, MO 65302 · Pettis County · Publicly Owned Treatment Works

Average flow
2.48 MGD
Design flow
—
NPDES permit
MO0101567
Effective
Permit expires
October 2028
Population served
21,634
CWNS 2022

Sedalia Southeast WWTP is a publicly owned wastewater treatment works in Sedalia, Pettis County, Missouri treating an average of 2.48 million gallons per day, serving about 21,634 residents. It discharges under NPDES permit MO0101567 (effective), which expires in October 2028, with 59 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in November 1997.

Treatment technology

6 treatment structures and unit processes identified at Sedalia Southeast WWTP.

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Compliance snapshot (last 3 years)

Total violations
59
Effluent violations
55

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 Sedalia Southeast WWTP in EPA's ICIS system.

Formal actions
2
0 since FY2020
Penalties assessed
$50,000
all cases
EPA inspections
0
none on record

Latest case · Nov 1997

CITY OF SEDALIA, MO

Administrative order · CWA, Clean Water Act · Final Order No Penalty · The case also names 1 other plant, and its amounts cover all of them

Source: EPA ECHO, civil enforcement case 07-1997-0011.

Full case history with a free Klarifi account

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

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Key contacts

1 verified contact for Sedalia Southeast WWTP, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Missouri

Sedalia North WWTP

Sedalia · 5 mi away

1.04 MGD

Sedalia Central WWTP

Sedalia · 5 mi away

1.88 MGD

Otterville Pws-Well # 1

Otterville · 11 mi away

0.02 MGD

Green Ridge WWTF

Green Ridge · 13 mi away

0.03 MGD

Hughesville WWTF

Hughesville · 13 mi away

0.008 MGD

Ionia WWTF

Ionia · 14 mi away

0.0036 MGD

La Monte SE WWTF

La Monte · 14 mi away

0.04 MGD

Cole Camp WWTF

Cole Camp · 15 mi away

0.2 MGD

Sedalia Southeast 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 12, 2026; facility record last updated August 13, 2026.

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


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