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

Clinton Briars Potw

Sewage treatment plant, Clinton, Mississippi. NPDES permit MS0047619, in force until May 31, 2027. Last 12 months: over a limit 13 times (last November 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (37 values)
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 13 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, maximum monthly average16.5 mg/L≤ 7 mg/L136%
October 2025BOD, 5-day, 20 deg. C, maximum monthly average42 lb/d≤ 37 lb/d14%
October 2025BOD, 5-day, 20 deg. C, maximum weekly average15.3 mg/L≤ 10.5 mg/L46%
October 2025Nitrogen, ammonia total [as N], maximum monthly average23 lb/d≤ 8 lb/d188%
October 2025Nitrogen, ammonia total [as N], maximum monthly average8.7 mg/L≤ 1.5 mg/L480%
October 2025Nitrogen, ammonia total [as N], maximum weekly average13 mg/L≤ 3 mg/L333%
October 2025Nitrogen, ammonia total [as N], maximum weekly average37 lb/d≤ 16 lb/d131%
November 2025BOD, 5-day, 20 deg. C, maximum monthly average12 mg/L≤ 7 mg/L71%
November 2025BOD, 5-day, 20 deg. C, maximum weekly average14 mg/L≤ 10.5 mg/L33%
November 2025Nitrogen, ammonia total [as N], maximum monthly average15.2 mg/L≤ 1.5 mg/L913%
November 2025Nitrogen, ammonia total [as N], maximum monthly average44 lb/d≤ 8 lb/d450%
November 2025Nitrogen, ammonia total [as N], maximum weekly average29 mg/L≤ 3 mg/L867%
November 2025Nitrogen, ammonia total [as N], maximum weekly average84 lb/d≤ 16 lb/d425%

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
Oxygen, dissolved [DO]minimumreport only (mg/L)all year
Oxygen, dissolved [DO]maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 7 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 10.5 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 37 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 55 lb/dall year
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 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≤ 158 lb/dall year
Solids, total suspendedmaximum weekly average≤ 236 lb/dall year
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Solids, total suspendedmaximum monthly averagereport only (lb/d)all year
Solids, total suspendedmaximum weekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.5 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly average≤ 8 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 16 lb/dall year
Nitrogen, ammonia total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]maximum weekly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .63 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 410 #/100mLall year
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
Sludge settleability 30 minuteminimumreport only (mL/L)all year
Sludge settleability 30 minutemaximumreport only (mL/L)all year

New limits from May 30, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], maximum monthly average7.2 lb/dtighter0.63 lb/d (12 values)0.0875×
Nitrogen, ammonia total [as N], maximum monthly average1.37 mg/Ltighter0.23 mg/L (12 values)0.168×
Nitrogen, ammonia total [as N], maximum weekly average2.05 mg/Ltighter0.23 mg/L (12 values)0.112×
Nitrogen, ammonia total [as N], maximum weekly average11.9 lb/dtighter0.63 lb/d (12 values)0.0529×

How strict are these limits?

Cited limits by parameter: Mississippi'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/MS0047619 · MCP: https://passage-data.com/mcp