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Point of Rocks WWTP

Sewage treatment plant, Frederick County, Maryland. NPDES permit MD0020800, in force until Oct 31, 2030. Last 12 months: over a limit 4 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (33 values), outfall 101 form A monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, maximum weekly average59 mg/L≤ 45 mg/L31%
March 2026BOD, 5-day, percent removal, monthly average minimum80.1 %≥ 85 %33%
March 2026Solids, total suspended, maximum weekly average101 lb/d≤ 86 lb/d17%
March 2026Solids, total suspended, maximum weekly average81 mg/L≤ 45 mg/L80%

Limits in force (35)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 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≤ 58 lb/dall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 86 lb/dall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 58 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 86 lb/dall year001
Solids, total suspendedmonthly totalreport only (lb/mo)all year001
Solids, total suspendedannual maximumreport only (lb/yr)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]annual maximumreport only (lb/yr)all year001
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, organic total [as N]monthly averagereport only (lb/d)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]annual maximumreport only (lb/yr)all year001
Phosphorus, total [as P]monthly totalreport only (lb/mo)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≤ 126 MPN/100mLall year001
Phosphorous, in total orthophosphatemonthly averagereport only (mg/L)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimumreport only (%)all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101

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/MD0020800 · MCP: https://passage-data.com/mcp