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Town of CHESAPEAKE CITY North

Sewage treatment plant, Chesapeake City, Maryland. NPDES permit MD0020401, in force until Feb 27, 2027. Last 12 months: over a limit 7 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (32 values), outfall 101 form A monthly (2 values), outfall 001 form B yearly
Renewal application due
Aug 31, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 25 reports late

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

Period endingParameterReportedLimitOver by
February 2026Solids, total suspended, maximum weekly average38.8 mg/L≤ 36 mg/L8%
March 2026Solids, suspended percent removal, minimum81.36 %≥ 85 %24%
March 2026Solids, total suspended, maximum monthly average24.7 mg/L≤ 24 mg/L3%
March 2026Solids, total suspended, maximum weekly average44 mg/L≤ 36 mg/L22%
April 2026Solids, suspended percent removal, minimum70.88 %≥ 85 %94%
June 2026Solids, suspended percent removal, minimum77.96 %≥ 85 %47%
July 2026Solids, suspended percent removal, minimum84 %≥ 85 %7%

Limits in force (41)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LFeb–May001
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/Lall year001
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 24 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 36 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 40 lb/dall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 60 lb/dall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum monthly average≤ 24 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 36 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 40 lb/dall year001
Solids, total suspendedmonthly totalreport only (lb/mo)all year001
Solids, total suspendedmaximum weekly average≤ 60 lb/dall year001
Solids, total suspendedannual maximum≤ 14620 lb/yrall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year001
Nitrogen, total [as N]annual totalreport only (lb/yr)all year001
Nitrogen, total [as N]annual totalreport only (lb/yr)all year001
Nitrogen, total [as N]annual maximum≤ 2435 lb/yrall year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year001
Phosphorus, total [as P]annual totalreport only (lb/yr)all year001
Phosphorus, total [as P]annual totalreport only (lb/yr)all year001
Phosphorus, total [as P]annual maximum≤ 183 lb/yrall year001
Phosphate, ortho [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 residualdaily maximum≤ .1 mg/Lall year001
Enterococcimaximum≤ 35 MPN/100mLall year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Flow, totalannual totalreport only (Mgal/yr)all year001
Flow, totalannual totalreport only (Mgal/yr)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MD0020401 · MCP: https://passage-data.com/mcp