Clean Water Act discharge permit · NPDES MD0023281
NORTH HARFORD HIGH SCHOOL WWTP, Pylesville, MD: NPDES MD0023281 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
NORTH HARFORD HIGH SCHOOL WWTP, held by NORTH HARFORD JR/SR/H.S. WWTP, holds NPDES permit MD0023281, which discharges to Unnamed Tributary Into Broad Creek. EPA’s file records it issued July 30, 2014 and expiring August 31, 2019. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NORTH HARFORD HIGH SCHOOL WWTP |
|---|---|
| Permittee as filed | NORTH HARFORD JR/SR/H.S. WWTP |
| NPDES ID | MD0023281 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 30, 2014 |
| Expiration date | August 31, 2019 |
| Issuing agency | MD DEPARTMENT OF THE ENVIRONMENT |
| Address | Pylesville, MD 21132 |
| Receiving water | UNNAMED TRIBUTARY INTO BROAD CREEK |
| Subwatershed | Broad Creek (HUC 020503061710) |
| SIC | 8211 – Elementary And Secondary Schools |
| Other EPA IDs (FRS) | RCRA handler MDR000015735; ICIS-AIR source MD0000002402500049 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 14Pollutants on file
- 11Under a numeric limit
- 14With 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 |
|---|---|---|---|---|---|
| pH | 2 | 90 | 62 | July 31, 2026 | |
| Nitrogen, ammonia total [as N] | 10 | 78 | 21 | June 30, 2026 | 628% over the limit |
| Coliform, fecal general | 0 | 33 | 12 | December 31, 2005 | 99,999% over the limit |
| E. coli | 1 | 24 | 10 | January 31, 2025 | 99,999% over the limit |
| Solids, total suspended | 4 | 76 | 9 | October 31, 2018 | 300% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 71 | 6 | June 30, 2009 | 243% over the limit |
| Oxygen, dissolved [DO] | 1 | 16 | 2 | October 31, 2005 | 46% over the limit |
| Flow, in conduit or thru treatment plant | 1 | 16 | 2 | January 31, 2008 | 335% over the limit |
| Chlorine, total residual | 1 | 14 | 0 | ||
| Nitrogen, total [as N] | 8 | 9 | 0 | ||
| BOD, 5-day, percent removal | 0 | 6 | 0 | ||
| Solids, suspended percent removal | 0 | 6 | 0 | ||
| Phosphate, total [as PO4] | 4 | 5 | 0 | ||
| Nitrogen, nitrate total [as N] | 4 | 4 | 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 MD0023281.
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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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 MD0023281 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.