Clean Water Act discharge permit · NPDES OH0102041
MADISON CO SEWER DIST NO 1, London, OH: NPDES OH0102041 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 39Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
MADISON CO SEWER DIST NO 1, held by Madison County Engineers, holds NPDES permit OH0102041, which discharges to Glade Run. EPA’s file records it issued December 6, 2017 and expiring December 31, 2022. 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 | MADISON CO SEWER DIST NO 1 |
|---|---|
| Permittee as filed | Madison County Engineers |
| NPDES ID | OH0102041 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 6, 2017 |
| Expiration date | December 31, 2022 |
| Address | London, OH 43140 |
| Receiving water | Glade Run |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Glade Run (HUC 050600020103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 41Pollutants on file
- 39Under a numeric limit
- 9With a violation of any kind
- 8With 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] | 20 | 29 | 29 | September 30, 2025 | 2,042% over the limit |
| E. coli, MTEC-MF | 8 | 22 | 18 | May 31, 2026 | 99,999% over the limit |
| pH | 8 | 6 | 6 | March 31, 2021 | |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 6 | 6 | August 31, 2010 | 99,999% over the limit |
| Chlorine, total residual | 0 | 5 | 5 | May 31, 2014 | 20,953% over the limit |
| Solids, total suspended | 10 | 3 | 3 | July 31, 2024 | 86% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 10 | 3 | 3 | June 30, 2025 | 107% over the limit |
| Oxygen, dissolved [DO] | 4 | 1 | 1 | September 30, 2025 | 52% over the limit |
| Chromium, hexavalent dissolved [as Cr] | 4 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 10 | 0 | 0 | ||
| Temperature, water deg. centigrade | 8 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 8 | 0 | 0 | ||
| Phosphorus, total [as P] | 8 | 0 | 0 | ||
| Nickel, total recoverable | 4 | 0 | 0 | ||
| Zinc, total recoverable | 4 | 0 | 0 | ||
| Cadmium, total recoverable | 4 | 0 | 0 | ||
| Lead, total recoverable | 4 | 0 | 0 | ||
| Chromium, total recoverable | 4 | 0 | 0 | ||
| Copper, total recoverable | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Mercury, total low level | 4 | 0 | 0 | ||
| Biosolids weight indluding admixtures | 4 | 0 | 0 | ||
| Cyanide, free available | 4 | 0 | 0 | ||
| Sludge weight, dry | 4 | 0 | 0 | ||
| Solids, total dissolved- 180 deg. C | 4 | 0 | 0 | ||
| Oil and grease, hexane extr method | 2 | 0 | 0 | ||
| Nitrogen, ammonia in bottom deposits | 2 | 0 | 0 | ||
| Phosphorous, total, in bottom deposits | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Potassium, in bottom deposits | 2 | 0 | 0 | ||
| Overflows | 2 | 0 | 0 | ||
| Sludge waste from secondary clarifiers | 2 | 0 | 0 | ||
| Arsenic, dry weight | 1 | 0 | 0 | ||
| Cadmium, in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Copper in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Lead, total dry weight [as Pb] | 1 | 0 | 0 | ||
| Nickel, tot in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Zinc in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Selenium, dry weight | 1 | 0 | 0 | ||
| Mercury, tot in bot deposits [dry wgt] | 1 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES OH0102041.
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.
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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 OH0102041 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.