Clean Water Act discharge permit · NPDES OH0020516
MASSILLON WWTP, Massillon, OH: NPDES OH0020516 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 54Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
MASSILLON WWTP, held by City of Massillon, holds NPDES permit OH0020516, which discharges to Tuscarawas River. EPA’s file records it issued October 29, 2020 and expiring November 30, 2025. 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 | MASSILLON WWTP |
|---|---|
| Permittee as filed | City of Massillon |
| NPDES ID | OH0020516 |
| 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 | October 29, 2020 |
| Expiration date | November 30, 2025 |
| Address | Massillon, OH 44646 |
| Receiving water | Tuscarawas River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Sippo Creek (HUC 050400010308) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 57Pollutants on file
- 54Under a numeric limit
- 29With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 8 | 66 | 66 | June 30, 2019 | 332% over the limit |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 18 | 18 | October 31, 2010 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 9 | 9 | June 30, 2011 | 124% over the limit |
| Oil and grease, hexane extr method | 1 | 8 | 8 | January 31, 2010 | 180% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 7 | 7 | May 31, 2018 | 106% over the limit |
| Oxygen, dissolved [DO] | 2 | 7 | 7 | June 30, 2021 | 25% over the limit |
| Phosphorus, total [as P] | 8 | 6 | 5 | July 31, 2026 | 115% over the limit |
| pH, maximum | 2 | 5 | 5 | February 28, 2017 | |
| Nitrogen, Kjeldahl, total [as N] | 8 | 4 | 0 | ||
| Phosphorous, total, in bottom deposits | 2 | 4 | 0 | ||
| Nickel, total recoverable | 4 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 4 | 2 | 0 | ||
| Mercury, total low level | 4 | 2 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Nitrogen, ammonia in bottom deposits | 2 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 2 | 0 | ||
| Potassium, in bottom deposits | 2 | 2 | 0 | ||
| Selenium, total recoverable | 0 | 2 | 0 | ||
| Chromium, total in bot dep [wet wgt] | 0 | 2 | 0 | ||
| Arsenic, dry weight | 1 | 1 | 0 | ||
| Cadmium, in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Copper in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Lead, total dry weight [as Pb] | 1 | 1 | 0 | ||
| Nickel, tot in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Zinc in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Selenium, dry weight | 1 | 1 | 0 | ||
| Fecal coliform in sludge, CFU/gram | 1 | 1 | 0 | ||
| Mercury, tot in bot deposits [dry wgt] | 1 | 1 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 1 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 0 | 0 | ||
| E. coli, MTEC-MF | 6 | 0 | 0 | ||
| Temperature, water deg. centigrade | 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 | ||
| Biosolids weight indluding admixtures | 4 | 0 | 0 | ||
| Sludge weight, dry | 4 | 0 | 0 | ||
| Overflows | 4 | 0 | 0 | ||
| Phosphate, ortho, dissolved [as P] | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Cyanide, free available | 2 | 0 | 0 | ||
| Bypass Volume | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 0 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 2 | 0 | 0 | ||
| pH, minimum | 2 | 0 | 0 | ||
| Solids, total dissolved- 180 deg. C | 2 | 0 | 0 | ||
| Bypass valve | 2 | 0 | 0 | ||
| Bypass of treatment | 2 | 0 | 0 | ||
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | 2 | 0 | 0 | ||
| %Effect Static Renewal 96Hr Acute Pimephales promelas | 2 | 0 | 0 | ||
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| %Effect Static Renewal 7Day Chronic Pimephales promelas | 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 OH0020516.
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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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.