Clean Water Act discharge permit · NPDES KS0055492
JOCO NELSON COMPLEX WASTEWATER PLANT (WWTP), Mission, KS: NPDES KS0055492 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 32Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
JOCO NELSON COMPLEX WASTEWATER PLANT (WWTP), held by JOHNSON COUNTY WASTEWATER, holds NPDES permit KS0055492, which discharges to Turkey Cr (1027010477). EPA’s file records it issued March 1, 2020 and expiring January 31, 2025. 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 filed | JOCO NELSON COMPLEX WASTEWATER PLANT (WWTP) |
|---|---|
| Permittee as filed | JOHNSON COUNTY WASTEWATER |
| NPDES ID | KS0055492 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 1, 2020 |
| Expiration date | January 31, 2025 |
| Issuing agency | Kansas Department of Health and Environment (KDHE) |
| Address | Mission, KS 66202 |
| Receiving water | Turkey Cr (1027010477) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Turkey Creek-Kansas River (HUC 102701040607) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 33Pollutants on file
- 32Under 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] | 24 | 49 | 49 | July 31, 2026 | 216% over the limit |
| BOD, nitrogen inhib 5-day [20 deg. C] | 4 | 15 | 15 | February 28, 2025 | 39% over the limit |
| Solids, total suspended | 8 | 8 | 8 | May 31, 2026 | 199% over the limit |
| E. coli | 48 | 4 | 4 | May 31, 2024 | 276% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 0 | 4 | 4 | July 31, 2026 | 30% over the limit |
| Chlorine, total residual | 2 | 1 | 1 | June 30, 2020 | 161% over the limit |
| IC25 Static Renewal 7 Day Chronic Chrpimephales | 2 | 1 | 1 | December 31, 2025 | 12% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 0 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Nitrogen, total [as N] | 4 | 0 | 0 | ||
| Nitrogen, Total As N | 4 | 0 | 0 | ||
| Phosphorus, Total As P | 4 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Arsenic, total recoverable | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Thallium, total recoverable | 2 | 0 | 0 | ||
| Beryllium, total recoverable [as Be] | 2 | 0 | 0 | ||
| Nickel, total recoverable | 2 | 0 | 0 | ||
| Silver total recoverable | 2 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 | ||
| Lead, total recoverable | 2 | 0 | 0 | ||
| Chromium, total recoverable | 2 | 0 | 0 | ||
| Copper, total recoverable | 2 | 0 | 0 | ||
| Antimony, total recoverable | 2 | 0 | 0 | ||
| Priority Pollutants | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES KS0055492.
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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Start the watch
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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 KS0055492 there.
Nearby on the register
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- Every permit record in Mission, A to Z
- Discharge permits in Kansas
- Every permit record in Kansas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.