Clean Water Act discharge permit · NPDES OH0023990
VILLAGE OF BALTIMORE WASTEWATER TREATMENT PLANT, Baltimore, OH: NPDES OH0023990 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 47Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
VILLAGE OF BALTIMORE WASTEWATER TREATMENT PLANT, held by Village of Baltimore, holds NPDES permit OH0023990, which discharges to Little Walnut Creek. EPA’s file records it issued February 13, 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 | VILLAGE OF BALTIMORE WASTEWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | Village of Baltimore |
| NPDES ID | OH0023990 |
| 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 13, 2019 |
| Expiration date | February 29, 2024 |
| Address | Baltimore, OH 43105 |
| Receiving water | Little Walnut Creek |
| Subwatershed | Town of Carroll-Walnut Creek (HUC 050600011705) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 48Pollutants on file
- 47Under a numeric limit
- 29With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 12 | 98 | 86 | February 28, 2026 | 1,078% over the limit |
| Solids, total suspended | 8 | 58 | 52 | February 28, 2009 | 2,178% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 47 | 41 | September 30, 2023 | 1,844% over the limit |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 26 | 26 | October 31, 2008 | 99,999% over the limit |
| Chlorine, total residual | 1 | 26 | 10 | August 31, 2020 | 20,689% over the limit |
| Oxygen, dissolved [DO] | 3 | 9 | 4 | June 30, 2008 | 56% over the limit |
| pH, maximum | 2 | 5 | 3 | October 31, 2015 | |
| pH | 4 | 9 | 1 | December 31, 2007 | |
| E. coli, MTEC-MF | 6 | 7 | 1 | September 30, 2014 | 52% over the limit |
| pH, minimum | 2 | 3 | 1 | July 31, 2015 | |
| Oil and grease, hexane extr method | 1 | 2 | 1 | July 31, 2026 | 187% over the limit |
| Temperature, water deg. centigrade | 6 | 10 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 6 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 6 | 4 | 0 | ||
| Phosphorus, total [as P] | 4 | 4 | 0 | ||
| Cyanide, free-water plus wastewaters | 2 | 4 | 0 | ||
| Mercury, total low level | 2 | 4 | 0 | ||
| Solids, total dissolved | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| Phosphate, ortho [as PO4] | 2 | 2 | 0 | ||
| Nickel, total recoverable | 2 | 2 | 0 | ||
| Zinc, total recoverable | 2 | 2 | 0 | ||
| Cadmium, total recoverable | 2 | 2 | 0 | ||
| Lead, total recoverable | 2 | 2 | 0 | ||
| Chromium, total recoverable | 2 | 2 | 0 | ||
| Copper, total recoverable | 2 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 2 | 0 | ||
| Overflows | 2 | 2 | 0 | ||
| Biosolids weight indluding admixtures | 4 | 0 | 0 | ||
| Nitrogen, ammonia in bottom deposits | 2 | 0 | 0 | ||
| Nitrite plus nitrate in bottom deposits | 2 | 0 | 0 | ||
| Phosphorous, total, in bottom deposits | 2 | 0 | 0 | ||
| Potassium, in bottom deposits | 2 | 0 | 0 | ||
| Sludge weight, dry | 2 | 0 | 0 | ||
| Sludge waste from secondary clarifiers | 2 | 0 | 0 | ||
| Bypass valve | 2 | 0 | 0 | ||
| Bypass of treatment | 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 | ||
| Fecal coliform in sludge, CFU/gram | 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 OH0023990.
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 OH0023990 there.
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- Every permit record in Ohio, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.