Annapolis Pws
West Street, Annapolis, MO 63620 · Iron County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- MO0023621
- Effective
- Permit expires
- December 2026
- Population served
- 378
- CWNS 2022
Annapolis Pws is a publicly owned wastewater treatment plant in Annapolis, Iron County, Missouri, serving about 378 residents. It discharges under NPDES permit MO0023621 (effective), which expires in December 2026, with 0 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2026.
Treatment technology
2 treatment structures and unit processes identified, 1 planned upgrade on record at Annapolis Pws.
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See the full treatment train at Annapolis Pws: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
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 Annapolis Pws in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $573
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jan 2026
Annapolis Public Water Supply Administrative Compliance Order
Administrative order · SDWA, National Drinking Water Regulations · Final Order No Penalty · Compliance actions $573
EPA's description of the case:
“Administrative order issued to the public water system for non-compliance with the SDWA for failure to submit the service line inventory pursuant to the SDWA regulations at 40 C.F.R. ?? 141.84(a) and…”
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Source: EPA ECHO, civil enforcement case 07-2026-0031.
Full case history with a free Klarifi account
Every action against Annapolis Pws with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Annapolis Pws.
No verified contacts on file yet
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Nearby wastewater treatment plants in Missouri
Piedmont · 12 mi away
0.02 MGD
Centerville · 15 mi away
0.0062 MGD
Piedmont · 16 mi away
0.39 MGD
Arcadia · 16 mi away
0.04 MGD
Arcadia · 17 mi away
0.03 MGD
Ellington · 17 mi away
0.17 MGD
Ironton · 17 mi away
0.31 MGD
Greenville · 21 mi away
0.03 MGD
Annapolis Pws: 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 March 15, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms