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Fountaindale WWTP

Sewage treatment plant, Middletown, Maryland. NPDES permit MD0022721, in force until Dec 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (33 values)
Renewal application due
Jul 4, 2027 · 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, 0 of 12 reports late

Limits in force (43)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 15 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 17 lb/dMay–Oct
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 50 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 25 lb/dMay–Oct
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 75 lb/dJan, Feb, Mar, Apr, Nov, Dec
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmaximum monthly average≤ 50 lb/dall year
Solids, total suspendedannual maximumreport only (lb/yr)all year
Solids, total suspendedmaximum weekly average≤ 75 lb/dall year
Solids, total suspendedmonthly totalreport only (lb/mo)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year
Nitrogen, total [as N]cumulative totalreport only (lb/yr)all year
Nitrogen, total [as N]annual totalreport only (lb/yr)Dec
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum monthly average≤ 1 mg/LMay–Oct
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.9 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum daily average≤ 5 mg/LMay–Oct
Nitrogen, ammonia total [as N]maximum daily average≤ 6.4 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.7 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum monthly average≤ 4.8 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum daily average≤ 8.3 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum daily average≤ 11 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]cumulative totalreport only (lb/yr)all year
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmaximum≤ .1 mg/Lall year
E. colimonthly geometric mean≤ 126 MPN/100mLall year
BOD, 5-day, percent removalmonthly averagereport only (%)all year
Solids, suspended percent removalmonthly averagereport only (%)all year
Flow, totalannual totalreport only (Mgal/yr)Dec

How strict are these limits?

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/MD0022721 · MCP: https://passage-data.com/mcp