Excelsior Estates WWTP
Lawson, MO · Ray County · Publicly Owned Treatment Works
- Average flow
- 0.0025 MGD
- Design flow
- —
- NPDES permit
- MO0108511
- Administratively continued
- Permit expires
- June 2024
- Population served
- 304
- CWNS 2022
Excelsior Estates WWTP is a publicly owned wastewater treatment works in Lawson, Ray County, Missouri treating an average of 0.0025 million gallons per day, serving about 304 residents. Treatment on site includes biological treatment, other, biosolids aerobic digestion, dechlorination, disinfection, chlorine/ chloramine. It discharges under NPDES permit MO0108511 (administratively continued), which expires in June 2024, with 163 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biological Treatment, Other
unit processBiosolids Aerobic Digestion
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 163
- Effluent violations
- 7
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Excelsior Estates WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Missouri
Excelsior Springs · 2 mi away
0.04 MGD
Excelsior Springs · 6 mi away
1 MGD
Kearney · 8 mi away
1.03 MGD
Holt · 9 mi away
—
Lathrop · 13 mi away
0.13 MGD
Orrick · 14 mi away
0.03 MGD
Polo · 14 mi away
0.05 MGD
Richmond · 16 mi away
0.87 MGD
Excelsior Estates 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 September 11, 2026; facility record last updated September 6, 2024.