Clean Water Act discharge permit · NPDES MDDRG2294
HART - MILLER ISLAND DREDGED MATERIAL CONTAINMENT FACILITY, Essex, MD: NPDES MDDRG2294 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 16Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
HART - MILLER ISLAND DREDGED MATERIAL CONTAINMENT FACILITY holds NPDES permit MDDRG2294, which discharges to Middle Chesapeake Bay. EPA’s file records it issued August 13, 2020 and expiring August 31, 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 | HART - MILLER ISLAND DREDGED MATERIAL CONTAINMENT FACILITY |
|---|---|
| Permittee as filed | HART - MILLER ISLAND DREDGED MATERIAL CONTAINMENT FACILITY |
| NPDES ID | MDDRG2294 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 13, 2020 |
| Expiration date | August 31, 2025 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Essex, MD 21219 |
| Receiving water | MIDDLE CHESAPEAKE BAY |
| Receiving water impaired | 303(D) Listed |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 16Under a numeric limit
- 34With a violation of any kind
- 5With 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] | 48 | 52 | 30 | September 30, 2019 | 2,950% over the limit |
| Copper, total [as Cu] | 12 | 40 | 30 | June 30, 2016 | 326% over the limit |
| Zinc, total [as Zn] | 12 | 32 | 22 | February 29, 2016 | 867% over the limit |
| Flow, in conduit or thru treatment plant | 24 | 66 | 21 | June 30, 2024 | 10% over the limit |
| Nickel, total [as Ni] | 12 | 61 | 1 | April 30, 2017 | 41% over the limit |
| Selenium, total [as Se] | 12 | 70 | 0 | ||
| Nickel, dissolved [as Ni] | 12 | 60 | 0 | ||
| Solids, total suspended | 36 | 23 | 0 | ||
| Nitrogen, total [as N] | 36 | 23 | 0 | ||
| Phosphorus, total [as P] | 36 | 18 | 0 | ||
| Nitrite Plus Nitrate Total | 24 | 16 | 0 | ||
| Nitrogen, organic total [as N] | 24 | 12 | 0 | ||
| pH | 12 | 10 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 10 | 0 | ||
| Hardness, total [as CaCO3] | 12 | 6 | 0 | ||
| Copper, dissolved [as Cu] | 12 | 6 | 0 | ||
| Zinc, dissolved [as Zn] | 12 | 6 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 6 | 0 | ||
| Carbon, tot organic [TOC] | 0 | 6 | 0 | ||
| Barium, total [as Ba] | 0 | 6 | 0 | ||
| Cadmium, total [as Cd] | 0 | 6 | 0 | ||
| Iron, total [as Fe] | 0 | 6 | 0 | ||
| Arsenic | 0 | 6 | 0 | ||
| Cyanide [A] | 0 | 6 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 0 | 6 | 0 | ||
| Mercury, total [as Hg] | 0 | 6 | 0 | ||
| Chemical oxygen demand [COD] | 0 | 6 | 0 | ||
| Chromium, total [as Cr] | 0 | 4 | 0 | ||
| Lead, total dry weight [as Pb] | 0 | 4 | 0 | ||
| Silver, total [as Ag] | 0 | 4 | 0 | ||
| Metals, total | 0 | 4 | 0 | ||
| Organics, total | 0 | 4 | 0 | ||
| Oil & Grease | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 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 MDDRG2294.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MDDRG2294.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MDDRG2294 there.
Nearby on the register
- Discharge permits in Essex
- Every permit record in Essex, A to Z
- Discharge permits in Maryland
- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.