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

City of Senath

Sewage treatment plant, Senath, Missouri. NPDES permit MO0048666 expired Jun 30, 2021; its limits still apply. Last 12 months: over a limit 23 times (last July 2026), 2 required values missing, 4 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (14 values), outfall 001 form B quarterly (6 values), outfall SM1 form A quarterly (4 values), outfall 001 form WA every 60 months
Last report on file
September 2026
Oct 2024 – Sep 2025
34 values over a limit, 0 required values missing, 2 of 20 reports late

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

All 23 values over a limit
Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, percent removal, monthly average minimum82≥ 85 %20%
February 2026BOD, 5-day, 20 deg. C, monthly average77.5≤ 30 mg/L158%
February 2026BOD, 5-day, 20 deg. C, weekly average77.5≤ 45 mg/L72%
February 2026BOD, 5-day, percent removal, monthly average minimum22≥ 85 %420%
February 2026Solids, suspended percent removal, monthly average minimum71≥ 85 %93%
March 2026BOD, 5-day, percent removal, monthly average minimum84≥ 85 %7%
March 2026Nitrogen, ammonia total [as N], daily maximum14.9≤ 12.2 mg/L22%
March 2026Nitrogen, ammonia total [as N], monthly average14.9≤ 3.6 mg/L314%
March 2026Solids, suspended percent removal, monthly average minimum75≥ 85 %67%
April 2026BOD, 5-day, 20 deg. C, monthly average47≤ 30 mg/L57%
April 2026BOD, 5-day, 20 deg. C, weekly average47≤ 45 mg/L4%
April 2026BOD, 5-day, percent removal, monthly average minimum64≥ 85 %140%
April 2026E. coli, 30-day geometric mean2194.493≤ 206 #/100mL965%
April 2026E. coli, 7-day geometric mean2420≤ 1030 #/100mL135%
April 2026Solids, suspended percent removal, monthly average minimum77≥ 85 %53%
May 2026BOD, 5-day, 20 deg. C, monthly average35.8≤ 30 mg/L19%
May 2026BOD, 5-day, percent removal, monthly average minimum70≥ 85 %100%
May 2026E. coli, 30-day geometric mean1300≤ 206 #/100mL531%
May 2026E. coli, 7-day geometric mean1300≤ 1030 #/100mL26%
June 2026E. coli, 30-day geometric mean290.3032≤ 206 #/100mL41%
July 2026E. coli, 30-day geometric mean742.6081≤ 206 #/100mL260%
July 2026E. coli, 7-day geometric mean1050≤ 1030 #/100mL2%
July 2026Solids, suspended percent removal, monthly average minimum83≥ 85 %13%

Limits in force (28)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year001
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximum≤ 9.5 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 12.2 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 3.6 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli7-day geometric mean≤ 1030 #/100mLApr–Oct001
E. coli30-day geometric mean≤ 206 #/100mLApr–Oct001
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (toxic)all year001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (toxic)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all yearSM1
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearSM1
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearSM1
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearSM1

How strict are these limits?

Cited limits by parameter: Missouri'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/MO0048666 · MCP: https://passage-data.com/mcp