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Landsman, LLC.

Mobile Home Site Operators, Crownsville, Maryland. NPDES permit MD0023272, in force until Oct 31, 2030. Last 12 months: over a limit 38 times (last May 2026), 1 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (26 values), outfall 101 form A monthly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
39 values over a limit, 1 required value missing, 1 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 38 values over a limit
Period endingParameterReportedLimitOver by
November 2025Nitrogen, ammonia total [as N], maximum monthly average.45 lb/d≤ .2 lb/d125%
November 2025Nitrogen, ammonia total [as N], maximum monthly average1.85 mg/L≤ 1.5 mg/L23%
November 2025Nitrogen, ammonia total [as N], maximum daily average13.1 mg/L≤ 4.9 mg/L167%
November 2025Nitrogen, ammonia total [as N], maximum daily average3.92 lb/d≤ .8 lb/d390%
December 2025BOD, 5-day, 20 deg. C, maximum weekly average7.67 lb/d≤ 7.1 lb/d8%
December 2025Solids, total suspended, maximum monthly average40.94 mg/L≤ 30 mg/L36%
December 2025Solids, total suspended, maximum monthly average8.79 lb/d≤ 4.8 lb/d83%
December 2025Solids, total suspended, maximum weekly average146.5 mg/L≤ 45 mg/L226%
December 2025Solids, total suspended, maximum weekly average31.83 lb/d≤ 7.1 lb/d348%
January 2026BOD, 5-day, 20 deg. C, maximum weekly average46.96 mg/L≤ 45 mg/L4%
January 2026BOD, 5-day, 20 deg. C, maximum weekly average9.25 lb/d≤ 7.1 lb/d30%
January 2026Nitrogen, ammonia total [as N], maximum monthly average.27 lb/d≤ .2 lb/d35%
January 2026Nitrogen, ammonia total [as N], maximum daily average1.68 lb/d≤ .8 lb/d110%
January 2026Nitrogen, ammonia total [as N], maximum daily average7.81 mg/L≤ 4.9 mg/L59%
January 2026Solids, total suspended, maximum monthly average306.31 mg/L≤ 30 mg/L921%
January 2026Solids, total suspended, maximum monthly average57.49 lb/d≤ 4.8 lb/d1098%
January 2026Solids, total suspended, maximum weekly average1196 mg/L≤ 45 mg/L2558%
January 2026Solids, total suspended, maximum weekly average235.88 lb/d≤ 7.1 lb/d3222%
February 2026Nitrogen, ammonia total [as N], maximum monthly average11.67 mg/L≤ 1.5 mg/L678%
February 2026Nitrogen, ammonia total [as N], maximum monthly average2.48 lb/d≤ .2 lb/d1140%
February 2026Nitrogen, ammonia total [as N], maximum daily average15.9 mg/L≤ 4.9 mg/L224%
February 2026Nitrogen, ammonia total [as N], maximum daily average3.25 lb/d≤ .8 lb/d306%
February 2026Solids, total suspended, maximum monthly average15.23 lb/d≤ 4.8 lb/d217%
February 2026Solids, total suspended, maximum monthly average71.75 mg/L≤ 30 mg/L139%
February 2026Solids, total suspended, maximum weekly average253 mg/L≤ 45 mg/L462%
February 2026Solids, total suspended, maximum weekly average51.64 lb/d≤ 7.1 lb/d627%
March 2026Nitrogen, ammonia total [as N], maximum monthly average.37 lb/d≤ .2 lb/d85%
March 2026Nitrogen, ammonia total [as N], maximum monthly average2.15 mg/L≤ 1.5 mg/L43%
March 2026Nitrogen, ammonia total [as N], maximum daily average1.66 lb/d≤ .8 lb/d108%
March 2026Nitrogen, ammonia total [as N], maximum daily average11.8 mg/L≤ 4.9 mg/L141%
May 2026Nitrogen, Kjeldahl, total [as N], maximum monthly average1.61 lb/d≤ .8 lb/d101%
May 2026Nitrogen, Kjeldahl, total [as N], maximum monthly average7.3 mg/L≤ 5 mg/L46%
May 2026Nitrogen, Kjeldahl, total [as N], maximum weekly average14.8 mg/L≤ 7.5 mg/L97%
May 2026Nitrogen, Kjeldahl, total [as N], maximum weekly average2 lb/d≤ 1.2 lb/d67%
May 2026Nitrogen, ammonia total [as N], maximum monthly average.3 lb/d≤ .2 lb/d50%
May 2026Nitrogen, ammonia total [as N], maximum monthly average1.37 mg/L≤ 1.1 mg/L25%
May 2026Nitrogen, ammonia total [as N], maximum daily average1.02 lb/d≤ .9 lb/d13%
May 2026Nitrogen, ammonia total [as N], maximum daily average10.1 mg/L≤ 5.5 mg/L84%

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 4.8 lb/dall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 7.1 lb/dall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 4.8 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 7.1 lb/dall year001
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum daily average≤ 5.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]maximum daily average≤ 4.9 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum monthly average≤ .2 lb/dMay–Oct001
Nitrogen, ammonia total [as N]maximum monthly average≤ .2 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum daily average≤ .9 lb/dMay–Oct001
Nitrogen, ammonia total [as N]maximum daily average≤ .8 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum monthly average≤ 5 mg/LMay–Oct001
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 7.5 mg/LMay–Oct001
Nitrogen, Kjeldahl, total [as N]maximum monthly average≤ .8 lb/dMay–Oct001
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 1.2 lb/dMay–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmaximum≤ .019 mg/Lall year001
E. colimaximum monthly geometric mean≤ 126 MPN/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101

New limits from Nov 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], maximum monthly average1.3 mg/L (Jan, Feb, Mar, Apr, Nov, Dec)tighter1.63 mg/L (6 values)1.25×
Nitrogen, ammonia total [as N], maximum monthly average0.7 mg/L (May–Oct)tighter0.16 mg/L (5 values)0.229×
Nitrogen, ammonia total [as N], maximum monthly average0.11 lb/d (May–Oct)tighter0.03 lb/d (5 values)0.273×
Nitrogen, ammonia total [as N], maximum daily average3.2 mg/L (May–Oct)tighter0.32 mg/L (5 values)0.1×

How strict are these limits?

Cited limits by parameter: Maryland's rules and the federal ones.

Same industry: the 9 Real Estate permits in Maryland.

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Your permit document is the final word. As JSON: /api/v1/permits/MD0023272 · MCP: https://passage-data.com/mcp