Clean Water Act discharge permit · NPDES MOG640123

SMITHVILLE WTP, Smithville, MO: NPDES MOG640123 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
21Pollutants under a numeric limit
2Pollutants with an effluent exceedance

SMITHVILLE WTP, held by City of Smithville, holds NPDES permit MOG640123, which discharges to Tributary To Wilkerson Cr.. EPA’s file records it issued May 1, 2024 and expiring February 24, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	SMITHVILLE WTP
Permittee as filed	City of Smithville
NPDES ID	MOG640123
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	May 1, 2024
Expiration date	February 24, 2029
Address	Smithville, MO 64089
Receiving water	Tributary to Wilkerson Cr.
Subwatershed	Wilkerson Creek (HUC 102400120708)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

21Pollutants on file
21Under a numeric limit
3With a violation of any kind
2With 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
Chlorine, total residual	2	8	8	December 31, 2016	111% over the limit
pH	3	1	1	June 30, 2009
Solids, settleable	2	2	0
Total production - mass	2	0	0
Nitrogen, Kjeldahl, total [as N]	2	0	0
Phosphorus, total [as P]	2	0	0
Sodium, total [as Na]	2	0	0
Chloride [as Cl]	2	0	0
Arsenic, total [as As]	2	0	0
Cadmium, total [as Cd]	2	0	0
Chromium, total [as Cr]	2	0	0
Copper, total [as Cu]	2	0	0
Lead, total [as Pb]	2	0	0
Molybdenum, total [as Mo]	2	0	0
Nickel, total [as Ni]	2	0	0
Zinc, total [as Zn]	2	0	0
Aluminum, total [as Al]	2	0	0
Selenium, total [as Se]	2	0	0
Flow, in conduit or thru treatment plant	2	0	0
Mercury, total [as Hg]	2	0	0
Report due [yrmoda]	1	0	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

1Single-event violations

Date	What EPA recorded	Agency
August 30, 2018	Reporting Violations - Improper/ Incorrect Reporting	ST6

Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MOG640123.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MOG640123 there.

Nearby on the register

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