Passage Data · Check a report · Use it from your AI

The Town of Clear Spring

Sewage treatment plant, Clear Spring, Maryland. NPDES permit MD0053325 expired Jul 31, 2025; its limits still apply. Last 12 months: no values over a limit, 3 required values missing, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (32 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (40)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 25 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≤ 38 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≤ 42 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≤ 63 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 suspendedmaximum weekly average≤ 75 lb/dall 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, organic total [as N]monthly averagereport only (mg/L)all year
Nitrogen, organic total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]maximum monthly average≤ 3.2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.2 mg/LMay–Oct
Nitrogen, ammonia total [as N]maximum daily average≤ 9.2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum daily average≤ 7 mg/LMay–Oct
Nitrogen, ammonia total [as N]maximum monthly average≤ 5.3 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 2 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum daily average≤ 15 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum daily average≤ 12 lb/dMay–Oct
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year
Phosphorus, total [as P]cumulative totalreport only (lb/yr)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. colimaximum monthly geometric mean≤ 126 MPN/100mLall year
Phosphorous, in total orthophosphatemonthly averagereport only (mg/L)all year
Phosphorous, in total orthophosphatemonthly averagereport only (lb/d)all year
Flow, totaltotalreport only (Mgal/mo)all year

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MD0053325 · MCP: https://passage-data.com/mcp