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Prasa Penuelas WWTP

Sewage treatment plant, Penuelas, Puerto Rico. NPDES permit PR0020761 expired Apr 30, 2024; its limits still apply. Last 12 months: over a limit 28 times (last August 2026), 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (32 values), form Q quarterly, form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
11 values over a limit, 0 required values missing, 0 of 17 reports late

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

All 28 values over a limit
Period endingParameterReportedLimitOver by
October 2025Copper, total [as Cu], daily maximum16.18 ug/L≤ 9.3 ug/L74%
October 2025Surfactants [MBAS], daily maximum279 ug/L≤ 100 ug/L179%
November 2025Solids, suspended percent removal, monthly average minimum81 %≥ 85 %27%
November 2025Solids, total suspended, monthly average38 mg/L≤ 30 mg/L27%
November 2025Solids, total suspended, maximum weekly average47 mg/L≤ 45 mg/L4%
January 2026Copper, total [as Cu], daily maximum12.85 ug/L≤ 9.3 ug/L38%
February 2026BOD, 5-day, 20 deg. C, monthly average24 mg/L≤ 16 mg/L50%
February 2026BOD, 5-day, 20 deg. C, maximum weekly average46 mg/L≤ 45 mg/L2%
March 2026BOD, 5-day, 20 deg. C, monthly average17636 kg/d≤ 45.41 kg/d38737%
March 2026BOD, 5-day, 20 deg. C, monthly average41 mg/L≤ 16 mg/L156%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average35237 kg/d≤ 127.73 kg/d27487%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average61 mg/L≤ 45 mg/L36%
March 2026Solids, suspended percent removal, monthly average minimum84 %≥ 85 %7%
March 2026Solids, total suspended, monthly average11298 kg/d≤ 85.15 kg/d13168%
March 2026Solids, total suspended, monthly average32 mg/L≤ 30 mg/L7%
March 2026Solids, total suspended, maximum weekly average22566 kg/d≤ 127.73 kg/d17567%
March 2026Solids, total suspended, maximum weekly average52 mg/L≤ 45 mg/L16%
April 2026BOD, 5-day, 20 deg. C, monthly average65 mg/L≤ 16 mg/L306%
April 2026BOD, 5-day, 20 deg. C, monthly average84 kg/d≤ 45.41 kg/d85%
April 2026BOD, 5-day, 20 deg. C, maximum weekly average83 mg/L≤ 45 mg/L84%
April 2026BOD, 5-day, percent removal, monthly average minimum65 %≥ 85 %133%
April 2026Copper, total [as Cu], daily maximum9.37 ug/L≤ 9.3 ug/L1%
June 2026BOD, 5-day, 20 deg. C, monthly average36 mg/L≤ 16 mg/L125%
June 2026BOD, 5-day, 20 deg. C, maximum weekly average49 mg/L≤ 45 mg/L9%
July 2026BOD, 5-day, 20 deg. C, monthly average19 mg/L≤ 16 mg/L19%
August 2026BOD, 5-day, 20 deg. C, monthly average39 mg/L≤ 16 mg/L144%
August 2026BOD, 5-day, 20 deg. C, maximum weekly average52 mg/L≤ 45 mg/L16%
August 2026Solids, total suspended, maximum weekly average54 mg/L≤ 45 mg/L20%

Limits in force (49)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximum≤ 32.2 deg Call year
Turbiditydaily maximum≤ 50 NTUall year
Color [PT-CO units]daily maximum≤ 15 col unit (pc)all year
Color [PT-CO units]daily maximum≤ 38 col unit (pc)all year
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 16 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 45.41 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 127.73 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 85.15 kg/dall year
Solids, total suspendedmaximum weekly average≤ 127.73 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, settleabledaily maximumreport only (mL/L)all year
Oil & Greasedaily maximumreport only (mg/L)all year
Nitrogen, total [as N]daily maximum≤ 1700 ug/Lall year
Nitrogen, total [as N]daily maximumreport only (ug/L)all year
Phosphorus, total [as P]daily maximum≤ 160 mg/Lall year
Phosphorus, total [as P]daily maximum≤ 6.73 mg/Lall year
Copper, total [as Cu]daily maximum≤ 9.3 ug/Lall year
2-Methyl-4,6-dinitrophenoldaily maximum≤ 13 ug/Lall year
Surfactants [MBAS]daily maximum≤ 100 ug/Lall year
Pentachlorophenoldaily maximum≤ 1 ug/Lall year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly average≤ .75 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 11 ug/Lall year
Cyanide, free availabledaily maximum≤ 5.2 ug/Lall year
Sulfide-hydrogen sulfide [undissociated]daily maximum≤ 2 ug/Lall year
Sulfide-hydrogen sulfide [undissociated]daily maximumreport only (ug/L)all year
Whole Effluent Toxicity [WET] - P. promelasminimumreport only (%)all year
Whole Effluent Toxicity [WET] - D. magnaminimumreport only (%)all year
Enterococcigeometric mean≤ 35 #/100mLall year
Enterococcigeometric meanreport only (#/100mL)all year
Enterococci90th percentile≤ 130 #/100mLall year
Enterococci90th percentilereport only (#/100mL)all year
Solids, total dissolveddaily maximum≤ 500 mg/Lall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Ammonia & ammonium- totaldaily maximumreport only (ug/L)all year

How strict are these limits?

Cited limits by parameter: we hold no rule of Puerto Rico's own; 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/PR0020761 · MCP: https://passage-data.com/mcp