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

Rawlings Improvement Association, Inc.

Sewage treatment plant, Rawlings, Maryland. NPDES permit MD0023213, in force until Jan 31, 2027. Last 12 months: over a limit 2 times (last May 2026), 1 required value missing, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (29 values)
Renewal application due
Aug 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 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
February 2026E. coli, maximum monthly geometric mean1151 MPN/100mL≤ 126 MPN/100mL813%
May 2026Nitrogen, ammonia total [as N], maximum monthly average7.3 mg/L≤ 6.3 mg/L16%

Limits in force (31)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 36 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 54 lb/dall year
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≤ 36 lb/dall year
Solids, total suspendedmaximum weekly average≤ 54 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]cumulative totalreport only (lb/yr)all year
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum monthly average≤ 6.3 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 7.5 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)Jan, Feb, Mar, Apr, Nov, Dec
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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)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≤ .018 mg/Lall year
E. colimaximum monthly geometric mean≤ 126 MPN/100mLall year
Phosphorous, in total orthophosphatemonthly averagereport only (mg/L)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/MD0023213 · MCP: https://passage-data.com/mcp