Clean Water Act discharge permit · NPDES MD0069094
EMERSUB 16, LLC, Hanover Hills, MD: NPDES MD0069094 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
EMERSUB 16, LLC holds NPDES permit MD0069094, which discharges to Patapsco River Lower North Branch. EPA’s file records it issued September 27, 2016 and expiring October 31, 2021. 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 | EMERSUB 16, LLC |
|---|---|
| Permittee as filed | EMERSUB 16, LLC |
| NPDES ID | MD0069094 |
| 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 | September 27, 2016 |
| Expiration date | October 31, 2021 |
| Issuing agency | Maryland Department of the Environment |
| Address | Hanover Hills, MD 21076 |
| Receiving water | PATAPSCO RIVER LOWER NORTH BRANCH |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Deep Run-Patapsco River (HUC 020600031102) |
| SIC | 3568 – Power Transmission Equipment |
| Other EPA IDs (FRS) | RCRA handler MDD043373935; ICIS-AIR source MD0000002400300194 |
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
- 23Pollutants on file
- 20Under a numeric limit
- 23With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 4 | 11 | 3 | December 31, 2005 | 63% over the limit |
| pH | 4 | 7 | 3 | May 31, 2017 | |
| Copper, total [as Cu] | 4 | 5 | 3 | December 31, 2024 | 78% over the limit |
| Solids, total suspended | 6 | 17 | 2 | December 31, 2005 | 653% over the limit |
| Nickel, total [as Ni] | 2 | 4 | 1 | November 30, 2021 | 112% over the limit |
| Zinc, total [as Zn] | 4 | 3 | 1 | March 31, 2017 | 49% over the limit |
| Nitrogen, total [as N] | 3 | 9 | 0 | ||
| Chlorine, total residual | 0 | 4 | 0 | ||
| 1,4-Dioxane | 0 | 4 | 0 | ||
| Lead, total [as Pb] | 2 | 3 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 3 | 0 | ||
| Nitrogen, organic total [as N] | 1 | 3 | 0 | ||
| Ammonia nitrogen, total, [as N] 30 day | 1 | 3 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 3 | 0 | ||
| 1,1-Dichloroethene | 1 | 2 | 0 | ||
| Organics, volatile [NJAC reg. 7:23-17e] | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 1 | 0 | ||
| Copper, dissolved [as Cu] | 2 | 1 | 0 | ||
| Lead, dissolved [as Pb] | 2 | 1 | 0 | ||
| Nickel, dissolved [as Ni] | 2 | 1 | 0 | ||
| Zinc, dissolved [as Zn] | 2 | 1 | 0 | ||
| Organics, tot purgeables [Method 624] | 2 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 1 | 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 MD0069094.
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 MD0069094 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.