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Prasa Rancheras Filter Plant

Water Supply, Yauco, Puerto Rico. NPDES permit PR0024660, in force until Apr 30, 2031. Last 12 months: over a limit once (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (11 values), form Q quarterly, form Y twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 1 of 16 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, daily maximum11.5 mg/L≤ 5 mg/L130%

Limits in force (25)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximum≤ 30 deg Call year
Turbiditydaily maximum≤ 50 NTUall year
Turbiditydaily maximum≤ 909 NTUall year
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, settleabledaily maximumreport only (mL/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 ug/Lall year
Phosphorus, total [as P]daily maximum≤ 1429 ug/Lall year
Cyanide, total [as CN]daily maximum≤ 4 ug/Lall year
Cyanide, total [as CN]daily maximumreport only (ug/L)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year
Cadmium, total [as Cd]daily maximum≤ .41 ug/Lall year
Cadmium, total [as Cd]daily maximumreport only (ug/L)all year
Copper, total [as Cu]daily maximum≤ 15 ug/Lall year
Copper, total [as Cu]daily maximum≤ 793 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximum≤ .004 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 11 ug/Lall year
Sulfide-hydrogen sulfide [undissociated]daily maximum≤ 2 ug/Lall year
Mercury, total [as Hg]daily maximum≤ .05 ug/Lall year
Mercury, total [as Hg]daily maximum≤ .097 ug/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/PR0024660 · MCP: https://passage-data.com/mcp