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Worton-Butlertown WWTP

Sewage treatment plant, Worton, Maryland. NPDES permit MD0060585, in force until Oct 31, 2029. Last 12 months: over a limit once (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 000 form QR monthly (3 values), outfall 001 form A monthly (36 values), outfall 001 form Q1 monthly (3 values), outfall 001 form Q2 monthly (3 values), outfall 002 form A monthly (11 values), outfall 002 form Q3 monthly (3 values), and 9 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 2 required values missing, 0 of 103 reports late

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

Period endingParameterReportedLimitOver by
May 2026BOD, 5-day, 20 deg. C, maximum monthly average10.75 mg/L≤ 10 mg/L8%

Limits in force (198)

ParameterStatisticLimitMonthsOutfall
Flowmonthly averagereport only (MGD)all year000
Flowdaily maximumreport only (MGD)all year000
Discharge event observation [Visual Monitoring]totalreport only (occur/mo)all year000
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 5 mg/LMay–Oct001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 9 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 8 mg/LMay–Oct001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 14 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10 lb/dMay–Oct001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 19 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 17 lb/dMay–Oct001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 29 lb/dJan, Feb, Mar, Apr, Nov, Dec001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8 SUall year001
Solids, total suspendedmaximum monthly average≤ 15 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 23 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 31 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 48 lb/dall year001
Nitrogen, total [as N]EPA's "SEAS TDT"≤ 1816 lb/yrMay–Oct001
Nitrogen, total [as N]maximum≤ 3631 lb/yrall year001
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]cumulative totalreport only (lb/yr)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]maximum monthly average≤ 3.2 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum daily average≤ 8.4 mg/LMay–Oct001
Nitrogen, ammonia total [as N]maximum daily average≤ 11 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.7 lb/dMay–Oct001
Nitrogen, ammonia total [as N]maximum monthly average≤ 6.7 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum daily average≤ 18 lb/dMay–Oct001
Nitrogen, ammonia total [as N]maximum daily average≤ 23 lb/dJan, Feb, Mar, Apr, Nov, Dec001
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]maximum≤ 228 lb/yrall year001
Phosphorus, total [as P]EPA's "SEAS TDT"≤ 90 lb/yrMay–Oct001
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]cumulative totalreport only (lb/yr)all 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 residualmaximum≤ .1 mg/Lall year001
E. colimaximum monthly geometric mean≤ 76 MPN/100mLall year001
Flowmonthly averagereport only (MGD)all year001
Flowdaily maximumreport only (MGD)all year001
Flowmonthly averagereport only (MGD)all year001
Flowdaily maximumreport only (MGD)all year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Discharge event observation [Visual Monitoring]totalreport only (occur/mo)Jan, Feb, Mar, Apr, Nov, Dec001
Discharge event observation [Visual Monitoring]monthly totalreport only (occur/mo)all year001
Discharge event observation [Visual Monitoring]totalreport only (occur/mo)all year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10 mg/Lall year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 8.5 SUall year002
Solids, total suspendedmaximum monthly average≤ 10 mg/Lall year002
Nitrogen, total [as N]maximum monthly average≤ 8 mg/Lall year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year002
Sodium, total [as Na]maximum monthly average≤ 100 mg/Lall year002
Sodium adsorption ratiomaximum monthly average≤ 9 RatioJun–Aug002
Flow, in conduit or thru treatment plantannual average≤ .195 MGDall year002
Coliform, fecal generalmonthly average≤ 3 MPN/100mLall year002
Flowmonthly averagereport only (MGD)all year002
Flowdaily maximumreport only (MGD)all year002
Discharge event observation [Visual Monitoring]totalreport only (occur/mo)all year002
Discharge event observation [Visual Monitoring]totalreport only (occur/mo)all year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101
Flow, totalmonthly totalreport only (MGD)all year101
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
pHannual averagereport only (SU)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrite total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrite total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrite total [as N]annual average≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual average≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual maximum≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual maximum≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual average≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual average≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual maximum≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual maximum≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual average≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual average≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual maximum≤ 1 mg/Lall yearMWS
Nitrogen, nitrite total [as N]annual maximum≤ 1 mg/Lall yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, nitrate total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Phosphate, total [as PO4]annual averagereport only (mg/L)all yearMWS
Chloride [as Cl]annual averagereport only (mg/L)all yearMWS
Chloride [as Cl]annual averagereport only (mg/L)all yearMWS
Chloride [as Cl]annual average≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual average≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual maximum≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual maximum≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual average≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual average≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual maximum≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual maximum≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual average≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual average≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual maximum≤ 250 mg/Lall yearMWS
Chloride [as Cl]annual maximum≤ 250 mg/Lall yearMWS
Solids, total dissolvedannual averagereport only (mg/L)all yearMWS
Solids, total dissolvedannual averagereport only (mg/L)all yearMWS
Solids, total dissolvedannual average≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual average≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual maximum≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual maximum≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual average≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual average≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual maximum≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual maximum≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual average≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual average≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual maximum≤ 500 mg/Lall yearMWS
Solids, total dissolvedannual maximum≤ 500 mg/Lall yearMWS
Coliform, fecal generalannual averagereport only (MPN/100mL)all yearMWS
Coliform, fecal generalannual averagereport only (MPN/100mL)all yearMWS
Coliform, fecal generalannual average≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual average≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual maximum≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual maximum≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual average≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual average≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual maximum≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual maximum≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual average≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual average≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual maximum≤ 2 MPN/100mLall yearMWS
Coliform, fecal generalannual maximum≤ 2 MPN/100mLall yearMWS

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/MD0060585 · MCP: https://passage-data.com/mcp