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Trailer Parks And Campsites, Marydel, Maryland. NPDES permit MD0057487, in force until Oct 31, 2030. Last 12 months: over a limit 95 times (last August 2026), 192 required values missing, 21 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | BOD, 5-day, percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| November 2025 | BOD, 5-day, percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| November 2025 | Nitrogen, ammonia total [as N], maximum monthly average | .12 lb/d | ≤ .11 lb/d | 9% |
| November 2025 | Nitrogen, ammonia total [as N], maximum monthly average | .12 lb/d | ≤ .11 lb/d | 9% |
| November 2025 | Nitrogen, ammonia total [as N], maximum monthly average | 1.45 mg/L | ≤ .89 mg/L | 63% |
| November 2025 | Nitrogen, ammonia total [as N], maximum monthly average | 1.45 mg/L | ≤ .89 mg/L | 63% |
| November 2025 | Nitrogen, ammonia total [as N], maximum daily average | .51 lb/d | ≤ .4 lb/d | 28% |
| November 2025 | Nitrogen, ammonia total [as N], maximum daily average | .51 lb/d | ≤ .4 lb/d | 28% |
| November 2025 | Nitrogen, ammonia total [as N], maximum daily average | 5.6 mg/L | ≤ 3.2 mg/L | 75% |
| November 2025 | Nitrogen, ammonia total [as N], maximum daily average | 5.6 mg/L | ≤ 3.2 mg/L | 75% |
| November 2025 | Solids, suspended percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| November 2025 | Solids, suspended percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| December 2025 | BOD, 5-day, percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| December 2025 | BOD, 5-day, percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| December 2025 | Nitrogen, ammonia total [as N], maximum monthly average | .15 lb/d | ≤ .11 lb/d | 36% |
| December 2025 | Nitrogen, ammonia total [as N], maximum monthly average | .15 lb/d | ≤ .11 lb/d | 36% |
| December 2025 | Nitrogen, ammonia total [as N], maximum monthly average | 1.5 mg/L | ≤ .89 mg/L | 69% |
| December 2025 | Nitrogen, ammonia total [as N], maximum monthly average | 1.5 mg/L | ≤ .89 mg/L | 69% |
| December 2025 | Nitrogen, ammonia total [as N], maximum daily average | 3.75 mg/L | ≤ 3.2 mg/L | 17% |
| December 2025 | Nitrogen, ammonia total [as N], maximum daily average | 3.75 mg/L | ≤ 3.2 mg/L | 17% |
| December 2025 | Solids, suspended percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| December 2025 | Solids, suspended percent removal, monthly average minimum | 0 % | ≥ 85 % | 567% |
| January 2026 | BOD, 5-day, percent removal, monthly average minimum | 5 % | ≥ 85 % | 533% |
| January 2026 | BOD, 5-day, percent removal, monthly average minimum | 5 % | ≥ 85 % | 533% |
| January 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .12 lb/d | ≤ .11 lb/d | 9% |
| January 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .12 lb/d | ≤ .11 lb/d | 9% |
| January 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 1.2 mg/L | ≤ .89 mg/L | 35% |
| January 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 1.2 mg/L | ≤ .89 mg/L | 35% |
| January 2026 | Solids, suspended percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| January 2026 | Solids, suspended percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| February 2026 | BOD, 5-day, percent removal, monthly average minimum | 6.2 % | ≥ 85 % | 525% |
| February 2026 | BOD, 5-day, percent removal, monthly average minimum | 6.2 % | ≥ 85 % | 525% |
| February 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .36 lb/d | ≤ .11 lb/d | 227% |
| February 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .36 lb/d | ≤ .11 lb/d | 227% |
| February 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 3.12 mg/L | ≤ .89 mg/L | 251% |
| February 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 3.12 mg/L | ≤ .89 mg/L | 251% |
| February 2026 | Nitrogen, ammonia total [as N], maximum daily average | .69 lb/d | ≤ .4 lb/d | 73% |
| February 2026 | Nitrogen, ammonia total [as N], maximum daily average | .69 lb/d | ≤ .4 lb/d | 73% |
| February 2026 | Nitrogen, ammonia total [as N], maximum daily average | 5.55 mg/L | ≤ 3.2 mg/L | 73% |
| February 2026 | Nitrogen, ammonia total [as N], maximum daily average | 5.55 mg/L | ≤ 3.2 mg/L | 73% |
| February 2026 | Solids, suspended percent removal, monthly average minimum | 7 % | ≥ 85 % | 520% |
| February 2026 | Solids, suspended percent removal, monthly average minimum | 7 % | ≥ 85 % | 520% |
| March 2026 | BOD, 5-day, percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| March 2026 | BOD, 5-day, percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| March 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .28 lb/d | ≤ .11 lb/d | 155% |
| March 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .28 lb/d | ≤ .11 lb/d | 155% |
| March 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 2.73 mg/L | ≤ .89 mg/L | 207% |
| March 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 2.73 mg/L | ≤ .89 mg/L | 207% |
| March 2026 | Nitrogen, ammonia total [as N], maximum daily average | .46 lb/d | ≤ .4 lb/d | 15% |
| March 2026 | Nitrogen, ammonia total [as N], maximum daily average | .46 lb/d | ≤ .4 lb/d | 15% |
| March 2026 | Nitrogen, ammonia total [as N], maximum daily average | 5.02 mg/L | ≤ 3.2 mg/L | 57% |
| March 2026 | Nitrogen, ammonia total [as N], maximum daily average | 5.02 mg/L | ≤ 3.2 mg/L | 57% |
| March 2026 | Solids, suspended percent removal, monthly average minimum | 11 % | ≥ 85 % | 493% |
| March 2026 | Solids, suspended percent removal, monthly average minimum | 11 % | ≥ 85 % | 493% |
| April 2026 | BOD, 5-day, percent removal, monthly average minimum | 10 % | ≥ 85 % | 500% |
| April 2026 | BOD, 5-day, percent removal, monthly average minimum | 10 % | ≥ 85 % | 500% |
| April 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .22 lb/d | ≤ .11 lb/d | 100% |
| April 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .22 lb/d | ≤ .11 lb/d | 100% |
| April 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 2.53 mg/L | ≤ .89 mg/L | 184% |
| April 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 2.53 mg/L | ≤ .89 mg/L | 184% |
| April 2026 | Nitrogen, ammonia total [as N], maximum daily average | .45 lb/d | ≤ .4 lb/d | 13% |
| April 2026 | Nitrogen, ammonia total [as N], maximum daily average | .45 lb/d | ≤ .4 lb/d | 13% |
| April 2026 | Nitrogen, ammonia total [as N], maximum daily average | 4.87 mg/L | ≤ 3.2 mg/L | 52% |
| April 2026 | Nitrogen, ammonia total [as N], maximum daily average | 4.87 mg/L | ≤ 3.2 mg/L | 52% |
| April 2026 | Solids, suspended percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| April 2026 | Solids, suspended percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum monthly average | .92 lb/d | ≤ .63 lb/d | 46% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum monthly average | .92 lb/d | ≤ .63 lb/d | 46% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum monthly average | 9.9 mg/L | ≤ 5 mg/L | 98% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum monthly average | 9.9 mg/L | ≤ 5 mg/L | 98% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 18.5 mg/L | ≤ 7.5 mg/L | 147% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 18.5 mg/L | ≤ 7.5 mg/L | 147% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 2.31 lb/d | ≤ .94 lb/d | 146% |
| May 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 2.31 lb/d | ≤ .94 lb/d | 146% |
| May 2026 | BOD, 5-day, percent removal, monthly average minimum | 6 % | ≥ 85 % | 527% |
| May 2026 | BOD, 5-day, percent removal, monthly average minimum | 6 % | ≥ 85 % | 527% |
| May 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .12 lb/d | ≤ .07 lb/d | 71% |
| May 2026 | Nitrogen, ammonia total [as N], maximum monthly average | .12 lb/d | ≤ .07 lb/d | 71% |
| May 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 1.2 mg/L | ≤ .56 mg/L | 114% |
| May 2026 | Nitrogen, ammonia total [as N], maximum monthly average | 1.2 mg/L | ≤ .56 mg/L | 114% |
| May 2026 | Nitrogen, ammonia total [as N], maximum daily average | .46 lb/d | ≤ .4 lb/d | 15% |
| May 2026 | Nitrogen, ammonia total [as N], maximum daily average | .46 lb/d | ≤ .4 lb/d | 15% |
| May 2026 | Nitrogen, ammonia total [as N], maximum daily average | 3.64 mg/L | ≤ 3.2 mg/L | 14% |
| May 2026 | Nitrogen, ammonia total [as N], maximum daily average | 3.64 mg/L | ≤ 3.2 mg/L | 14% |
| May 2026 | Solids, suspended percent removal, monthly average minimum | 7 % | ≥ 85 % | 520% |
| May 2026 | Solids, suspended percent removal, monthly average minimum | 7 % | ≥ 85 % | 520% |
| June 2026 | BOD, 5-day, percent removal, monthly average minimum | 6 % | ≥ 85 % | 527% |
| June 2026 | Solids, suspended percent removal, monthly average minimum | 7 % | ≥ 85 % | 520% |
| July 2026 | BOD, 5-day, percent removal, monthly average minimum | 1 % | ≥ 85 % | 560% |
| July 2026 | BOD, 5-day, percent removal, monthly average minimum | 1 % | ≥ 85 % | 560% |
| July 2026 | Solids, suspended percent removal, monthly average minimum | 3 % | ≥ 85 % | 547% |
| July 2026 | Solids, suspended percent removal, monthly average minimum | 3 % | ≥ 85 % | 547% |
| August 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 7.6 mg/L | ≤ 7.5 mg/L | 1% |
| August 2026 | BOD, 5-day, percent removal, monthly average minimum | 3 % | ≥ 85 % | 547% |
| August 2026 | Solids, suspended percent removal, monthly average minimum | 8 % | ≥ 85 % | 513% |
| 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 | ≤ 5 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 | ≤ 7.5 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 | ≤ .63 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 3.75 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ .94 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 5.63 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 | maximum monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | maximum monthly average | ≤ 3.75 lb/d | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 5.63 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ .56 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ .89 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ 3.2 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ 3.2 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ .07 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ .11 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ .4 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | maximum daily average | ≤ .4 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .015 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .1 mg/L | all year | 001 |
| E. coli | maximum monthly geometric mean | ≤ 126 MPN/100mL | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Flow, total | monthly total | report only (MGD) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 101 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 101 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], maximum monthly average | 0.06 lb/d (Jan, Feb, Mar, Apr, Nov, Dec) | tighter | 0.185 lb/d (6 values) | 3.08× |
| Nitrogen, ammonia total [as N], maximum monthly average | 0.44 mg/L (Jan, Feb, Mar, Apr, Nov, Dec) | tighter | 2.015 mg/L (6 values) | 4.58× |
| Nitrogen, ammonia total [as N], maximum monthly average | 0.27 mg/L (May–Oct) | tighter | 0.39 mg/L (5 values) | 1.44× |
| Nitrogen, ammonia total [as N], maximum daily average | 0.25 lb/d (Jan, Feb, Mar, Apr, Nov, Dec) | tighter | 0.455 lb/d (6 values) | 1.82× |
| Nitrogen, ammonia total [as N], maximum daily average | 2.01 mg/L (Jan, Feb, Mar, Apr, Nov, Dec) | tighter | 4.945 mg/L (6 values) | 2.46× |
| Nitrogen, ammonia total [as N], maximum daily average | 0.13 lb/d (May–Oct) | tighter | 0.16 lb/d (5 values) | 1.23× |
| Nitrogen, ammonia total [as N], maximum daily average | 1.1 mg/L (May–Oct) | tighter | 2.18 mg/L (5 values) | 1.98× |
| Nitrogen, ammonia total [as N], maximum monthly average | 0.03 lb/d (May–Oct) | tighter | 0.03 lb/d (5 values) | 1× |
Cited limits by parameter: Maryland's rules and the federal ones.
Same industry: the 16 Hotels, Rooming Houses, Camps and Other Lodging permits in Maryland.
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On EPA ECHO: Facility report · DMR history
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