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PRASA Yauco WTP

Water Supply, Yauco, Puerto Rico. NPDES permit PR0022675, in force until Aug 31, 2028. Last 12 months: over a limit 3 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (12 values), form Q quarterly, form Y yearly
Renewal application due
Mar 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 17 reports late

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

Period endingParameterReportedLimitOver by
April 2026BOD, 5-day, 20 deg. C, daily maximum19.4 mg/L≤ 15 mg/L29%
July 2026BOD, 5-day, 20 deg. C, daily maximum15.4 mg/L≤ 15 mg/L3%
August 2026Ammonia & ammonium- total, daily maximum.61 mg/L≤ .29 mg/L110%

Limits in force (20)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximum≤ 30 deg Call year
Turbiditydaily maximum≤ 50 NTUall year
Turbiditydaily maximum≤ 431 NTUall year
Color [PT-CO units]daily maximum≤ 15 col unit (pc)all year
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 5 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, settleabledaily maximumreport only (mL/L)all year
Copper, total [as Cu]daily maximum≤ 13.87 ug/Lall year
Copper, total [as Cu]daily maximum≤ 133.95 ug/Lall year
Lead, total [as Pb]daily maximum≤ 5.74 ug/Lall year
Lead, total [as Pb]daily maximum≤ 20.53 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximum≤ .612 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 11 ug/Lall year
Whole Effluent Toxicity [WET] - P. promelasminimumreport only (%)all year
Whole Effluent Toxicity [WET] - D. magnaminimumreport only (%)all year
Ammonia & ammonium- totaldaily maximum≤ .29 mg/Lall year

How strict are these limits?

Cited limits by parameter: we hold no rule of Puerto Rico's own; the federal ones.

Same industry: the 108 Water Supply permits in Puerto Rico.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PR0022675 · MCP: https://passage-data.com/mcp