Clean Water Act discharge permit · NPDES MO0050687

ARCADIA WEST WWTF, Arcadia, MO: NPDES MO0050687 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
7Pollutants under a numeric limit
7Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

ARCADIA WEST WWTF, held by City of Arcadia, holds NPDES permit MO0050687, which discharges to Stouts Cr.. EPA’s file records it issued September 30, 2016 and expiring September 30, 2021.

ARCADIA WEST WWTF, Arcadia, Missouri: Individual permit MO0050687, held by City of Arcadia; Publicly owned treatment works; Effective; issued September 30, 2016, term to September 30, 2021, by MODNR-Water Protection Program; discharges to Stouts Cr..

Nitrogen, ammonia total [as N]: 6 limits, 14 violations of any kind, 14 effluent exceedances, latest April 30, 2026, largest 186% over the limit.
BOD, 5-day, 20 deg. C: 3 limits, 5 violations of any kind, 5 effluent exceedances, latest June 30, 2026, largest 244% over the limit.
E. coli: 2 limits, 5 violations of any kind, 5 effluent exceedances, latest June 30, 2026, largest 1,395% over the limit.
pH: 1 limit, 3 violations of any kind, 3 effluent exceedances, latest June 30, 2026.
Solids, total suspended: 3 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2026, largest 175% over the limit.
E. coli, colony forming units [CFU]: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest May 31, 2016, largest 45% over the limit.
Oil and grease [soxhlet extr.] tot.: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest August 31, 2016, largest 20% over the limit.
Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.

April 9, 2026: Reporting Violations - Failure to Submit DMRs (ST6).
April 9, 2026: Management Practice Violations - No Licensed/Certified Operator (ST6).
April 9, 2026: Reporting Violations - Improper/ Incorrect Reporting (ST6).
March 24, 2026: Evaluation (S).
June 27, 2022: Effluent Violations - Numeric effluent violation (ST6).
March 15, 2022: Effluent Violations - Narrative Effluent Violation (ST6).

Missouri holds 756 Publicly owned treatment works coverages of this permit type in EPA’s file; 130 were issued before MO0050687. City of Arcadia holds 2 permits in Missouri.

Other permits held by City of Arcadia

ARCADIA EAST WWTF, Arcadia: MO0080667, issued September 30, 2016

Coverages issued nearest MO0050687

September 15, 2016: JAMESPORT WWTF, Jamesport, MO0087149, held by City of Jamesport
September 22, 2016: CALLAO WWTF, Callao, MO0114421, held by City of Callao
September 27, 2016: BARNETT WWTF, Barnett, MO0135461, held by City of Barnett
September 28, 2016: WASHINGTON WWTP, Washington, MO0025810, held by City of Washington
September 30, 2016: WARSAW WWTF, Warsaw, MO0049239, held by City of Warsaw
September 30, 2016: ARCADIA EAST WWTF, Arcadia, MO0080667, held by City of Arcadia
October 5, 2016: BOURBON WWTP, Bourbon, MO0094765, held by City of Bourbon
October 6, 2016: ELMO WWTF, Elmo, MO0094366, held by City of Elmo
October 6, 2016: LONE JACK WWTF, Lone Jack, MO0123579, held by City of Lone Jack
October 14, 2016: IRONDALE WWTF, Irondale, MO0109568, held by City of Irondale

ARCADIA WEST WWTF among its neighbors

EPA’s permit file holds 8 discharge permits in the Headwaters Stouts Creek subwatershed (HUC 080202020207), MO0050687 among them. Its county holds 43, 5 of them major permits; MO0050687 is a minor permit.

Other permits in the Headwaters Stouts Creek subwatershed (HUC 080202020207)

ARCADIA EAST WWTF, Arcadia: MO0080667, minor permit, discharging to 8-20-13 MUDD V1.0, permit term to September 30, 2021
CAPITAL QUARRIES CO ARCADIA QUARRY, Arcadia: MOG490468, minor permit, discharging to Tributary to Stouts Cr., permit term to April 30, 2027
MAWC, IRONTON PWS, Ironton: MOG640058, minor permit, discharging to Stouts Cr., permit term to February 24, 2029
POLITTE READY MIX - ARCADIA, Arcadia: MOG490355, minor permit, discharging to Tributary to Stouts Creek, permit term to April 30, 2022
RUBLE'S MEAT MARKET LLC, Arcadia: MOG220140, minor permit, discharging to Tributary to Stouts Cr., permit term to June 30, 2027
RUBLE'S MEAT MARKET LLC, Arcadia: MOG822113, minor permit, discharging to 8-20-13 MUDD V1.0, permit term to May 22, 2022
SHEPHERD MOUNTAIN BIKE PARK, Ironton: MORA24364, minor permit, discharging to Tributary to Shepard Mountain Lake, permit term to February 7, 2027

Identity

Facility as filed	ARCADIA WEST WWTF
Permittee as filed	City of Arcadia
NPDES ID	MO0050687
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 30, 2016
Expiration date	September 30, 2021
Issuing agency	MODNR-Water Protection Program
Address	Arcadia, MO 63621
Receiving water	Stouts Cr.
Receiving water impaired	303(D) Listed
Subwatershed	Headwaters Stouts Creek (HUC 080202020207)
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

8Pollutants on file
7Under a numeric limit
7With a violation of any kind
7With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	6	14	14	April 30, 2026	186% over the limit
BOD, 5-day, 20 deg. C	3	5	5	June 30, 2026	244% over the limit
E. coli	2	5	5	June 30, 2026	1,395% over the limit
pH	1	3	3	June 30, 2026
Solids, total suspended	3	2	2	June 30, 2026	175% over the limit
E. coli, colony forming units [CFU]	0	2	2	May 31, 2016	45% over the limit
Oil and grease [soxhlet extr.] tot.	2	1	1	August 31, 2016	20% over the limit
Flow, in conduit or thru treatment plant	2	0	0

Inspections, violations and enforcement

5Single-event violations

Date	What EPA recorded	Agency
April 9, 2026	Reporting Violations - Failure to Submit DMRs	ST6
April 9, 2026	Management Practice Violations - No Licensed/Certified Operator	ST6
April 9, 2026	Reporting Violations - Improper/ Incorrect Reporting	ST6
June 27, 2022	Effluent Violations - Numeric effluent violation	ST6
March 15, 2022	Effluent Violations - Narrative Effluent Violation	ST6

Inspections

Date	What EPA recorded	Agency
March 24, 2026	Evaluation	S

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MO0050687.

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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act discharge permit NPDES MO0050687 for the ARCADIA WEST WWTF in Arcadia, MO, held by City of Arcadia and discharging to Stouts Cr., with an Effective status and a Minor Discharger class. The page lists 7 pollutants under a numeric limit and 7 pollutants with an effluent exceedance, out of 8 pollutants on file.