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Clean Water Act discharge permit · NPDES MO0132110

JOHNSON RIDGE WWTF, Smithville, MO: NPDES MO0132110 discharge permit, effluent exceedances, inspections, penalties

JOHNSON RIDGE WWTF, held by Timber Creek Sewer Co., holds NPDES permit MO0132110, which discharges to Tributary To Brushy Creek. EPA’s file records it issued April 1, 2019 and expiring March 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedJOHNSON RIDGE WWTF
Permittee as filedTimber Creek Sewer Co.
NPDES IDMO0132110
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedApril 1, 2019
Expiration dateMarch 31, 2024
AddressSmithville, MO 64089
Receiving waterTributary to Brushy Creek
SubwatershedHeadwaters Fishing River (HUC 103001010404)

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

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH2148March 31, 2026
Nitrogen, ammonia total [as N]495March 31, 2025613% over the limit
BOD, 5-day, 20 deg. C2104September 30, 202495% over the limit
E. coli233June 30, 2023736% over the limit
Solids, total suspended282June 30, 202361% over the limit
Flow, in conduit or thru treatment plant240
Ammonia [as N] + unionized ammonia040
Temperature, water deg. centigrade020
Coliform, fecal general020

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

DateWhat EPA recordedAgency
June 18, 2025Effluent Violations - Numeric effluent violationST6
March 26, 2025Effluent Violations - Numeric effluent violationST6
June 24, 2024Effluent Violations - Numeric effluent violationST6
September 20, 2022Effluent Violations - Numeric effluent violationST6
July 9, 2018Effluent Violations - Narrative Effluent ViolationST6

Velarion’s copy of EPA’s ICIS-NPDES files does not 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

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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 MO0132110 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.