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Federal facility (Noncommercial Research Organizations), Beltsville, Maryland. NPDES permit MD0020842 expired Aug 31, 2021; its limits still apply. Last 12 months: over a limit 25 times (last August 2026), 1 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Copper, total recoverable, maximum monthly average | .0127 mg/L | ≤ .0018 mg/L | 606% |
| November 2025 | Copper, total recoverable, maximum monthly average | .0189 mg/L | ≤ .0018 mg/L | 950% |
| December 2025 | Copper, total recoverable, maximum monthly average | .021 mg/L | ≤ .0018 mg/L | 1067% |
| December 2025 | Copper, total recoverable, maximum monthly average | .048 lb/d | ≤ .0092 lb/d | 422% |
| December 2025 | Phosphorus, total [as P], monthly total | 2.2 lb/d | ≤ 1.5 lb/d | 47% |
| December 2025 | Solids, total suspended, maximum monthly average | 57 mg/L | ≤ 30 mg/L | 90% |
| December 2025 | Solids, total suspended, maximum weekly average | 211 mg/L | ≤ 45 mg/L | 369% |
| January 2026 | Copper, total recoverable, maximum monthly average | .014 lb/d | ≤ .0092 lb/d | 52% |
| January 2026 | Copper, total recoverable, maximum monthly average | .0156 mg/L | ≤ .0018 mg/L | 767% |
| January 2026 | Phosphorus, total [as P], monthly total | 1.9 lb/d | ≤ 1.5 lb/d | 27% |
| January 2026 | Solids, total suspended, maximum weekly average | 47 mg/L | ≤ 45 mg/L | 4% |
| February 2026 | Copper, total recoverable, maximum monthly average | .01 mg/L | ≤ .0018 mg/L | 456% |
| February 2026 | Copper, total recoverable, maximum monthly average | .02 lb/d | ≤ .0092 lb/d | 117% |
| February 2026 | Solids, total suspended, maximum monthly average | 62 mg/L | ≤ 30 mg/L | 107% |
| February 2026 | Solids, total suspended, maximum weekly average | 162 mg/L | ≤ 45 mg/L | 260% |
| March 2026 | Copper, total recoverable, maximum monthly average | .0092 mg/L | ≤ .0018 mg/L | 411% |
| March 2026 | Copper, total recoverable, maximum monthly average | .014 lb/d | ≤ .0092 lb/d | 52% |
| April 2026 | Copper, total recoverable, maximum monthly average | .0102 mg/L | ≤ .0018 mg/L | 467% |
| April 2026 | Copper, total recoverable, maximum monthly average | .026 lb/d | ≤ .0092 lb/d | 183% |
| April 2026 | Nitrogen, total [as N], monthly total | 27.28 lb/d | ≤ 21 lb/d | 30% |
| April 2026 | Phosphorus, total [as P], monthly total | 2.28 lb/d | ≤ 1.5 lb/d | 52% |
| May 2026 | Copper, total recoverable, maximum monthly average | .01 mg/L | ≤ .0018 mg/L | 456% |
| June 2026 | Copper, total recoverable, maximum monthly average | .0125 mg/L | ≤ .0018 mg/L | 594% |
| July 2026 | Copper, total recoverable, maximum monthly average | .0127 mg/L | ≤ .0018 mg/L | 606% |
| August 2026 | Copper, total recoverable, maximum monthly average | .0056 mg/L | ≤ .0018 mg/L | 211% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Nitrogen, total [as N] | annual total | report only (lb/yr) | all year | 001 |
| Phosphorus, total [as P] | annual total | report only (lb/yr) | all year | 001 |
| Flow, total | annual total | report only (Mgal/yr) | all year | 001 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 17 mg/L | Apr–Oct | 002 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 26 mg/L | Apr–Oct | 002 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 88 lb/d | Apr–Oct | 002 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 160 lb/d | Jan, Feb, Mar, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 130 lb/d | Apr–Oct | 002 |
| BOD, 5-day, 20 deg. C | annual maximum | ≤ 44348 lb/yr | all year | 002 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 230 lb/d | Jan, Feb, Mar, Nov, Dec | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 8.5 SU | all year | 002 |
| Solids, total suspended | maximum monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Nov, Dec | 002 |
| Solids, total suspended | maximum monthly average | ≤ 17 mg/L | Apr–Oct | 002 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Nov, Dec | 002 |
| Solids, total suspended | maximum weekly average | ≤ 26 mg/L | Apr–Oct | 002 |
| Solids, total suspended | maximum monthly average | ≤ 160 lb/d | Jan, Feb, Mar, Nov, Dec | 002 |
| Solids, total suspended | maximum monthly average | ≤ 88 lb/d | Apr–Oct | 002 |
| Solids, total suspended | maximum weekly average | ≤ 230 lb/d | Jan, Feb, Mar, Nov, Dec | 002 |
| Solids, total suspended | cumulative total | ≤ 20860 lb/yr | Apr–Oct | 002 |
| Solids, total suspended | maximum weekly average | ≤ 130 lb/d | Apr–Oct | 002 |
| Solids, total suspended | annual maximum | ≤ 44260 lb/yr | all year | 002 |
| Solids, total suspended | monthly total | report only (lb/d) | all year | 002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | annual maximum | ≤ 7553 lb/yr | all year | 002 |
| Nitrogen, total [as N] | monthly total | ≤ 21 lb/d | all year | 002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, organic total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, organic total [as N] | monthly average | report only (lb/d) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 2.7 mg/L | Jan, Feb, Mar, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 1.6 mg/L | Apr–Oct | 002 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ 10 mg/L | Jan, Feb, Mar, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ 14 mg/L | Apr–Oct | 002 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 14 lb/d | Jan, Feb, Mar, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 8.3 lb/d | Apr–Oct | 002 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ 52 lb/d | Jan, Feb, Mar, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ 72 lb/d | Apr–Oct | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly total | ≤ 1.5 lb/d | all year | 002 |
| Phosphorus, total [as P] | annual maximum | ≤ 566 lb/yr | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Hardness, total [as CaCO3] | value | report only (mg/L) | all year | 002 |
| Sulfate, dissolved [as SO4] | value | report only (mg/L) | all year | 002 |
| Arsenic, total [as As] | value | report only (mg/L) | Dec | 002 |
| Lead, total [as Pb] | annual total | report only (ug/L) | Dec | 002 |
| Nickel, total [as Ni] | value | report only (ug/L) | Dec | 002 |
| Silver, total [as Ag] | annual total | report only (ug/L) | Dec | 002 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 002 |
| Copper, total recoverable | maximum monthly average | ≤ .0018 mg/L | all year | 002 |
| Copper, total recoverable | maximum monthly average | ≤ .0092 lb/d | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | maximum | ≤ .1 mg/L | all year | 002 |
| E. coli | maximum monthly geometric mean | ≤ 126 MPN/100mL | all year | 002 |
| Heptachlor + Heptachlor Epoxide | monthly average | report only (mg/L) | all year | 002 |
| Phosphorous, in total orthophosphate | monthly average | report only (mg/L) | all year | 002 |
| Phosphorous, in total orthophosphate | monthly average | report only (lb/d) | all year | 002 |
| Mercury, total [as Hg] | annual total | report only (ug/L) | Dec | 002 |
| Total toxic organics [TTO] [40 CFR413] | annual total | report only (ug/L) | Dec | 002 |
| Cyanide, total recoverable | monthly average | report only (mg/L) | all year | 002 |
| Cyanide, total recoverable | monthly average | report only (lb/d) | all year | 002 |
| Polychlorinated biphenyls [PCB] pg/L | quarterly average | report only (pg/L) | Mar, Jun, Sep, Dec | 002 |
| Polychlorinated biphenyls [PCB] pg/L | quarterly total | report only (g/qtr) | Mar, Jun, Sep, Dec | 002 |
| Polychlorinated biphenyls [PCB] pg/L | cumulative total | report only (g/yr) | Mar, Jun, Sep, Dec | 002 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 002 |
| Chloride, dissolved [as Cl] | monthly average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 70 mg/L | all year | 101 |
| pH | minimum | ≥ 6.5 SU | all year | 101 |
| pH | maximum | ≤ 8.5 SU | all year | 101 |
| Solids, total suspended | maximum monthly average | ≤ 90 mg/L | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly total | report only (gal/mo) | all year | 101 |
| Coliform, fecal general | maximum | ≤ 200 MPN/100mL | all year | 101 |
Cited limits by parameter: Maryland's rules and the federal ones.
Same industry: the 9 Engineering, Accounting, Research and Management Services permits in Maryland.
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Your permit document is the final word. As JSON: /api/v1/permits/MD0020842 · MCP: https://passage-data.com/mcp