NPDES MD0054836 · Clean Water Act
NRG MD - BRANDYWINE FLYASH MANAGEMENT SITE, Prince George'S County, MD: NPDES MD0054836 discharge permit, effluent exceedances, inspections, penalties
NRG MD - BRANDYWINE FLYASH MANAGEMENT SITE, Prince George'S County, Maryland: Individual permit MD0054836, held by GenOn Mid-Atlantic, LLC; Administratively continued; issued September 29, 2016, term to October 31, 2021, by MARYLAND DEPARTMENT OF THE ENVIRONMENT; discharges to PATUXENT RIVER - MIDDLE.
14 of the 49 pollutants listed for NPDES MD0054836 have no violation or effluent exceedance.
- Chloride [as Cl]: 30 limits, 38 violations of any kind, 37 effluent exceedances, latest March 31, 2020, largest 121% over the limit.
- Cadmium, total [as Cd]: 30 limits, 8 violations of any kind, 7 effluent exceedances, latest May 31, 2018, largest 1,900% over the limit.
- Lead, total [as Pb]: 30 limits, 55 violations of any kind, 4 effluent exceedances, latest October 31, 2017, largest 100% over the limit.
- Solids, total suspended: 6 limits, 104 violations of any kind, 2 effluent exceedances, latest July 31, 2019, largest 63% over the limit.
- Zinc, total [as Zn]: 18 limits, 52 violations of any kind, 2 effluent exceedances, latest September 30, 2017, largest 100% over the limit.
- Iron, total [as Fe]: 24 limits, 96 violations of any kind, 1 effluent exceedance, latest May 31, 2014, largest 60% over the limit.
- Toxicity, Acute: 3 limits, 8 violations of any kind, 1 effluent exceedance, latest December 31, 2017, largest 99,999% over the limit.
- Flow, in conduit or thru treatment plant: 6 limits, 93 violations of any kind.
- Copper, total [as Cu]: 30 limits, 51 violations of any kind.
- Selenium, total [as Se]: 28 limits, 51 violations of any kind.
- Hardness, total [as CaCO3]: 16 limits, 50 violations of any kind.
- pH: 30 limits, 37 violations of any kind.
- Toxicity, Chronic: 3 limits, 7 violations of any kind.
- Oxygen, dissolved [DO]: 12 limits, 3 violations of any kind.
- Turbidity: 0 limits, 3 violations of any kind.
- Arsenic, Inorganic: 6 limits, 2 violations of any kind.
- Copper, dissolved [as Cu]: 6 limits, 2 violations of any kind.
- Nickel, total [as Ni]: 30 limits, 1 violation of any kind.
- Sulfate, total [as SO4]: 24 limits, 1 violation of any kind.
- Arsenic, total [as As]: 24 limits, 1 violation of any kind.
- Boron, total [as B]: 18 limits, 1 violation of any kind.
- Chromium, total [as Cr]: 18 limits, 1 violation of any kind.
- Solids, total dissolved: 18 limits, 1 violation of any kind.
- Mercury, total [as Hg]: 18 limits, 1 violation of any kind.
- Nitrite + Nitrate total [as N]: 12 limits, 1 violation of any kind.
- Fluoride, total [as F]: 12 limits, 1 violation of any kind.
- Barium, total [as Ba]: 12 limits, 1 violation of any kind.
- Beryllium, total [as Be]: 12 limits, 1 violation of any kind.
- Manganese, total [as Mn]: 12 limits, 1 violation of any kind.
- Thallium, total [as Tl]: 12 limits, 1 violation of any kind.
- Silver, total [as Ag]: 12 limits, 1 violation of any kind.
- Antimony, total [as Sb]: 12 limits, 1 violation of any kind.
- Aluminum, total [as Al]: 12 limits, 1 violation of any kind.
- Radium, total: 12 limits, 1 violation of any kind.
- Water level at sample collection time: 12 limits, 1 violation of any kind.
- Color [PT-CO units]: 12 limits.
- Nitrogen, total [as N]: 12 limits.
- Phosphorus, total [as P]: 12 limits.
- Conductivity: 6 limits.
- Specific conductance: 6 limits.
- Oil & Grease: 6 limits.
- Nitrogen, ammonia total [as N]: 6 limits.
- Arsenic, dissolved [as As]: 6 limits.
- Cadmium, dissolved [as Cd]: 6 limits.
- Iron, dissolved [as Fe]: 6 limits.
- Lead, dissolved [as Pb]: 6 limits.
- Nickel, dissolved [as Ni]: 6 limits.
- Zinc, dissolved [as Zn]: 6 limits.
- Selenium, dissolved [as Se]: 6 limits.
Other permits held by GenOn Mid-Atlantic, LLC
- FAULKNER ASH MANAGEMENT SITE, Faulkner: MD0056928, issued 2016-09-29
NRG MD - BRANDYWINE FLYASH MANAGEMENT SITE among its neighbors
4 discharge permits are in the Mataponi Creek-Patuxent River subwatershed (HUC 020600060502); MD0054836 is one. Its county: 155, 3 major; MD0054836 is minor permit.
Other permits in the Mataponi Creek-Patuxent River subwatershed (HUC 020600060502)
- BRANDYWINE ASH MANAGEMENT FACILITY, Brandywine: MDR003258, minor, term to 2028-01-31
- BRANDYWINE PRESERVATION LLC - GIBBONS ROAD PROPERTY, Brandywine: MDG490036, minor, term to 2027-04-30
- NVA PROPERTIES, LLC WWTP (HENSON VALLEY MONTESSORI SCHOOL, INC.), Upper Marlboro: MD0052680, minor, term to 2022-08-31
Identity
| Facility | NRG MD - BRANDYWINE FLYASH MANAGEMENT SITE |
|---|---|
| Permittee | GenOn Mid-Atlantic, LLC |
| NPDES ID | MD0054836 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | September 29, 2016 |
| Expires | October 31, 2021 |
| Agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Prince George'S County, MD 20613 |
| Receiving water | PATUXENT RIVER - MIDDLE |
| Subwatershed | Mataponi Creek-Patuxent River (HUC 020600060502) |
| SIC | 4953 – Refuse Systems |
NPDES MD0054836: effluent limits and exceedances
NRG MD - BRANDYWINE FLYASH MANAGEMENT SITE (NPDES MD0054836): 49 pollutants on file, 48 limited; 35 with a violation of any kind, 7 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Chloride [as Cl] | 30 | 38 | 37 | March 31, 2020 | 121% over the limit |
| Cadmium, total [as Cd] | 30 | 8 | 7 | May 31, 2018 | 1,900% over the limit |
| Lead, total [as Pb] | 30 | 55 | 4 | October 31, 2017 | 100% over the limit |
| Solids, total suspended | 6 | 104 | 2 | July 31, 2019 | 63% over the limit |
| Zinc, total [as Zn] | 18 | 52 | 2 | September 30, 2017 | 100% over the limit |
| Iron, total [as Fe] | 24 | 96 | 1 | May 31, 2014 | 60% over the limit |
| Toxicity, Acute | 3 | 8 | 1 | December 31, 2017 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 93 | 0 | ||
| Copper, total [as Cu] | 30 | 51 | 0 | ||
| Selenium, total [as Se] | 28 | 51 | 0 | ||
| Hardness, total [as CaCO3] | 16 | 50 | 0 | ||
| pH | 30 | 37 | 0 | ||
| Toxicity, Chronic | 3 | 7 | 0 | ||
| Oxygen, dissolved [DO] | 12 | 3 | 0 | ||
| Turbidity | 0 | 3 | 0 | ||
| Arsenic, Inorganic | 6 | 2 | 0 | ||
| Copper, dissolved [as Cu] | 6 | 2 | 0 | ||
| Nickel, total [as Ni] | 30 | 1 | 0 | ||
| Sulfate, total [as SO4] | 24 | 1 | 0 | ||
| Arsenic, total [as As] | 24 | 1 | 0 | ||
| Boron, total [as B] | 18 | 1 | 0 | ||
| Chromium, total [as Cr] | 18 | 1 | 0 | ||
| Solids, total dissolved | 18 | 1 | 0 | ||
| Mercury, total [as Hg] | 18 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 12 | 1 | 0 | ||
| Fluoride, total [as F] | 12 | 1 | 0 | ||
| Barium, total [as Ba] | 12 | 1 | 0 | ||
| Beryllium, total [as Be] | 12 | 1 | 0 | ||
| Manganese, total [as Mn] | 12 | 1 | 0 | ||
| Thallium, total [as Tl] | 12 | 1 | 0 | ||
| Silver, total [as Ag] | 12 | 1 | 0 | ||
| Antimony, total [as Sb] | 12 | 1 | 0 | ||
| Aluminum, total [as Al] | 12 | 1 | 0 | ||
| Radium, total | 12 | 1 | 0 | ||
| Water level at sample collection time | 12 | 1 | 0 | ||
| Color [PT-CO units] | 12 | 0 | 0 | ||
| Nitrogen, total [as N] | 12 | 0 | 0 | ||
| Phosphorus, total [as P] | 12 | 0 | 0 | ||
| Conductivity | 6 | 0 | 0 | ||
| Specific conductance | 6 | 0 | 0 | ||
| Oil & Grease | 6 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 6 | 0 | 0 | ||
| Arsenic, dissolved [as As] | 6 | 0 | 0 | ||
| Cadmium, dissolved [as Cd] | 6 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 6 | 0 | 0 | ||
| Lead, dissolved [as Pb] | 6 | 0 | 0 | ||
| Nickel, dissolved [as Ni] | 6 | 0 | 0 | ||
| Zinc, dissolved [as Zn] | 6 | 0 | 0 | ||
| Selenium, dissolved [as Se] | 6 | 0 | 0 |
NPDES MD0054836: inspections, violations and enforcement
NPDES MD0054836 (NRG MD - BRANDYWINE FLYASH MANAGEMENT SITE): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES MD0054836
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Permits near NPDES MD0054836
NPDES MD0054836: 49 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.