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City of Clewiston

Sewage treatment plant, major discharger, Clewiston, Florida. NPDES permit FL0040665, in force until Mar 29, 2027. Last 12 months: over a limit 14 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 90 days after each period: form 1 monthly (25 values)
Renewal application due
Sep 30, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
13 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
October 2025Oxygen, dissolved percent saturation, minimum3 %≥ 38 %92%
November 2025IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia, minimum96 %≥ 100 %4%
November 2025Oxygen, dissolved percent saturation, minimum15 %≥ 38 %61%
December 2025Nitrogen, total [as N], annual average3.2≤ 3 mg/L7%
December 2025Oxygen, dissolved percent saturation, minimum2≥ 38 %95%
January 2026Oxygen, dissolved percent saturation, minimum6≥ 38 %84%
February 2026Oxygen, dissolved percent saturation, minimum6≥ 38 %84%
March 2026Oxygen, dissolved percent saturation, minimum3≥ 38 %92%
April 2026Nitrogen, total [as N], weekly average5.4≤ 4.5 mg/L20%
April 2026Oxygen, dissolved percent saturation, minimum2≥ 38 %95%
May 2026Oxygen, dissolved percent saturation, minimum4≥ 38 %89%
June 2026Oxygen, dissolved percent saturation, minimum2.01≥ 38 %95%
July 2026Oxygen, dissolved percent saturation, minimum9.67≥ 38 %75%
August 2026Oxygen, dissolved percent saturation, minimum.98≥ 38 %97%

Limits in force (34)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademaximumreport only (deg C)all year
Oxygen, dissolved percent saturationminimum≥ 38 %all year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Nitrogen, total [as N]maximum≤ 6 mg/Lall year
Nitrogen, total [as N]weekly average≤ 4.5 mg/Lall year
Nitrogen, total [as N]weekly average≤ 4.5 mg/Lall year
Nitrogen, total [as N]maximum≤ 6 mg/Lall year
Nitrogen, total [as N]monthly average≤ 3.75 mg/Lall year
Nitrogen, total [as N]monthly average≤ 3.75 mg/Lall year
Nitrogen, total [as N]annual average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum≤ 2 mg/Lall year
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year
Phosphorus, total [as P]maximum≤ 2 mg/Lall year
Phosphorus, total [as P]monthly average≤ 1.25 mg/Lall year
Phosphorus, total [as P]monthly average≤ 1.25 mg/Lall year
Phosphorus, total [as P]annual average≤ 1 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantannual average≤ 1.47 MGDall year
Chlorine, total residualmaximum≤ .01 mg/Lall year
IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum≥ 100 %all year
IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum≥ 100 %all year
IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 100 %all year

How strict are these limits?

Cited limits by parameter: Florida'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/FL0040665 · MCP: https://passage-data.com/mcp