Clean Water Act discharge permit · NPDES OH0020559
CALDWELL WWTP, Caldwell, OH: NPDES OH0020559 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 42Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
CALDWELL WWTP, held by Caldwell, Village of, holds NPDES permit OH0020559, which discharges to West Fork Duck Creek. EPA’s file records it issued February 8, 2019 and expiring February 29, 2024. 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 | CALDWELL WWTP |
|---|---|
| Permittee as filed | Caldwell, Village of |
| NPDES ID | OH0020559 |
| 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 | February 8, 2019 |
| Expiration date | February 29, 2024 |
| Address | Caldwell, OH 43724 |
| Receiving water | West Fork Duck Creek |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Headwaters West Fork Duck Creek (HUC 050302010901) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 46Pollutants on file
- 42Under a numeric limit
- 22With a violation of any kind
- 11With 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 | 6 | 50 | 46 | March 31, 2026 | 12,328% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 25 | 21 | June 30, 2024 | 10,030% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 21 | 17 | September 30, 2022 | 413% over the limit |
| Oxygen, dissolved [DO] | 3 | 20 | 17 | September 30, 2025 | 91% over the limit |
| E. coli, MTEC-MF | 6 | 9 | 9 | May 31, 2022 | 752% over the limit |
| Oil and grease, hexane extr method | 1 | 7 | 7 | August 31, 2019 | 820% over the limit |
| pH | 8 | 13 | 5 | September 30, 2022 | |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 6 | 4 | July 31, 2014 | 63% over the limit |
| Fecal coliform | 0 | 4 | 4 | December 31, 2012 | 850% over the limit |
| Chlorine, total residual | 0 | 11 | 1 | August 31, 2017 | 5,163% over the limit |
| Fecal coliform in sludge, CFU/gram | 1 | 1 | 1 | December 31, 2015 | 5% over the limit |
| Chromium, hexavalent dissolved [as Cr] | 4 | 6 | 0 | ||
| Solids, total dissolved- 180 deg. C | 2 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 4 | 0 | ||
| Phosphorus, total [as P] | 2 | 4 | 0 | ||
| Temperature, water deg. centigrade | 6 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 2 | 0 | ||
| Cyanide, total [as CN] | 2 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Mercury, total [as Hg] | 2 | 2 | 0 | ||
| Oil & Grease | 0 | 2 | 0 | ||
| Overflows | 10 | 0 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 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 | ||
| Nitrogen, ammonia in bottom deposits | 2 | 0 | 0 | ||
| Phosphorous, total, in bottom deposits | 2 | 0 | 0 | ||
| Cyanide, free-water plus wastewaters | 2 | 0 | 0 | ||
| Potassium, in bottom deposits | 2 | 0 | 0 | ||
| Mercury, total low level | 2 | 0 | 0 | ||
| Biosolids weight indluding admixtures | 2 | 0 | 0 | ||
| Sludge weight, dry | 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 OH0020559.
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 OH0020559 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.