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Sewerage Systems, major discharger, Fort Meade Sewage Disposal Plant, Maryland. NPDES permit MD0021717 expired Jul 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 10 mg/L | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 15 mg/L | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 250 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 750 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 380 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 1100 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 8.5 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 750 lb/d | all year | 001 |
| Solids, total suspended | annual maximum | ≤ 410400 lb/yr | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 001 |
| Solids, total suspended | weekly average | ≤ 1100 lb/d | all year | 001 |
| Solids, total suspended | cumulative total | report only (lb/yr) | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 001 |
| Nitrogen, total [as N] | annual maximum | ≤ 54820 lb/yr | all year | 001 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 001 |
| Nitrogen, total [as N] | annual total | report only (lb/yr) | all year | 001 |
| Nitrogen, total [as N] | annual total | report only (lb/yr) | all year | 001 |
| Nitrogen, total [as N] | cumulative total | report only (lb/yr) | all year | 001 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 001 |
| Nitrogen, organic total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 2 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 3 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 50 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 75 lb/d | May–Oct | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | annual maximum | ≤ 4112 lb/yr | all year | 001 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 001 |
| Phosphorus, total [as P] | annual total | report only (lb/yr) | all year | 001 |
| Phosphorus, total [as P] | annual total | report only (lb/yr) | all year | 001 |
| Phosphorus, total [as P] | cumulative total | report only (lb/yr) | all year | 001 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Silver total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Silver total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Phosphate, ortho [as P] | monthly average | report only (mg/L) | all year | 001 |
| Acrolein | quarterly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| 3,3'-Dichlorobenzidine | quarterly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Benzidine | quarterly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Chlorine, total residual | maximum | ≤ .1 mg/L | all year | 001 |
| E. coli | maximum monthly geometric mean | ≤ 126 MPN/100mL | all year | 001 |
| Volatile Organic Compound [VOC] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Total toxic organics [TTO] [40 CFR413] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Cyanide, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Cyanide, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Polychlorinated biphenyls [PCB] pg/L | annual maximum | report only (g/yr) | Mar, Jun, Sep, Dec | 001 |
| Flow, total | total | report only (Mgal/mo) | all year | 001 |
| Flow, total | annual total | report only (Mgal/yr) | all year | 001 |
| Flow, total | annual total | report only (Mgal/yr) | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 101 |
| Solids, total suspended | cumulative total | report only (lb/yr) | all year | 101 |
| Solids, total suspended | cumulative total | report only (lb/yr) | all year | 101 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 101 |
| Nitrogen, total [as N] | cumulative total | report only (lb/yr) | all year | 101 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 101 |
| Nitrogen, total [as N] | cumulative total | report only (lb/yr) | all year | 101 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 101 |
| Phosphorus, total [as P] | cumulative total | report only (lb/yr) | all year | 101 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 101 |
| Phosphorus, total [as P] | cumulative total | report only (lb/yr) | all year | 101 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| Flow, total | total | report only (Mgal/mo) | all year | 101 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 101 |
| Cyanide, total [as CN] | maximum monthly average | ≤ .65 mg/L | all year | 201 |
| Cyanide, total [as CN] | maximum monthly average | ≤ .65 mg/L | all year | 201 |
| Cyanide, total [as CN] | maximum daily average | ≤ 1.2 mg/L | all year | 201 |
| Cyanide, total [as CN] | maximum daily average | ≤ 1.2 mg/L | all year | 201 |
| Cadmium, total [as Cd] | maximum monthly average | ≤ .26 mg/L | all year | 201 |
| Cadmium, total [as Cd] | maximum monthly average | ≤ .26 mg/L | all year | 201 |
| Cadmium, total [as Cd] | maximum daily average | ≤ .69 mg/L | all year | 201 |
| Cadmium, total [as Cd] | maximum daily average | ≤ .69 mg/L | all year | 201 |
| Chromium, total [as Cr] | maximum monthly average | ≤ 1.71 mg/L | all year | 201 |
| Chromium, total [as Cr] | maximum monthly average | ≤ 1.71 mg/L | all year | 201 |
| Chromium, total [as Cr] | maximum daily average | ≤ 2.77 mg/L | all year | 201 |
| Chromium, total [as Cr] | maximum daily average | ≤ 2.77 mg/L | all year | 201 |
| Copper, total [as Cu] | maximum monthly average | ≤ 2.07 mg/L | all year | 201 |
| Copper, total [as Cu] | maximum monthly average | ≤ 2.07 mg/L | all year | 201 |
| Copper, total [as Cu] | maximum daily average | ≤ 3.38 mg/L | all year | 201 |
| Copper, total [as Cu] | maximum daily average | ≤ 3.38 mg/L | all year | 201 |
| Lead, total [as Pb] | maximum monthly average | ≤ .43 mg/L | all year | 201 |
| Lead, total [as Pb] | maximum monthly average | ≤ .43 mg/L | all year | 201 |
| Lead, total [as Pb] | maximum daily average | ≤ .69 mg/L | all year | 201 |
| Lead, total [as Pb] | maximum daily average | ≤ .69 mg/L | all year | 201 |
| Nickel, total recoverable | maximum monthly average | ≤ 2.38 mg/L | all year | 201 |
| Nickel, total recoverable | maximum monthly average | ≤ 2.38 mg/L | all year | 201 |
| Nickel, total recoverable | maximum daily average | ≤ 3.98 mg/L | all year | 201 |
| Nickel, total recoverable | maximum daily average | ≤ 3.98 mg/L | all year | 201 |
| Silver, total [as Ag] | maximum monthly average | ≤ .24 mg/L | all year | 201 |
| Silver, total [as Ag] | maximum monthly average | ≤ .24 mg/L | all year | 201 |
| Silver, total [as Ag] | maximum daily average | ≤ .43 mg/L | all year | 201 |
| Silver, total [as Ag] | maximum daily average | ≤ .43 mg/L | all year | 201 |
| Zinc, total [as Zn] | maximum monthly average | ≤ 1.48 mg/L | all year | 201 |
| Zinc, total [as Zn] | maximum monthly average | ≤ 1.48 mg/L | all year | 201 |
| Zinc, total [as Zn] | maximum daily average | ≤ 2.61 mg/L | all year | 201 |
| Zinc, total [as Zn] | maximum daily average | ≤ 2.61 mg/L | all year | 201 |
| Flow, in conduit or thru treatment plant | maximum | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | maximum | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 201 |
| Total toxic organics [TTO] [40 CFR467] | maximum daily average | ≤ 2.13 mg/L | all year | 201 |
| Total toxic organics [TTO] [40 CFR467] | maximum daily average | ≤ 2.13 mg/L | all year | 201 |
Cited limits by parameter: Maryland's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MD0021717 · MCP: https://passage-data.com/mcp