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Prasa Las Delicias Filter PLT.

Water Supply, Ciales, Puerto Rico. NPDES permit PR0025216, in force until Sep 30, 2030. 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 (10 values), form Q quarterly (1 value), form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 1 of 17 reports late

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

Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], daily maximum350 ug/L≤ 160 ug/L119%
December 2025Phosphorus, total [as P], daily maximum510 ug/L≤ 160 ug/L219%
August 2026Phosphorus, total [as P], daily maximum260 ug/L≤ 160 ug/L62%

Limits in force (19)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximum≤ 30 deg Call year
Turbiditydaily maximum≤ 50 NTUall year
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, settleabledaily maximumreport only (mL/L)all year
Phosphorus, total [as P]daily maximum≤ 160 ug/Lall year
Sulfate, total [as SO4]daily maximum≤ 250 mg/Lall year
Arsenic, total [as As]daily maximum≤ 10 ug/Lall year
Chromium, hexavalent [as Cr]daily maximumreport only (ug/L)all year
Copper, total [as Cu]daily maximum≤ 256.47 ug/Lall year
Copper, total [as Cu]daily maximum≤ 7 ug/Lall year
Lead, total [as Pb]daily maximum≤ 2.02 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximum≤ .1006 MGDall year
Chlorine, total residualdaily maximum≤ 11 ug/Lall year
Cyanide, free availabledaily maximum≤ 4 ug/Lall year
Whole Effluent Toxicity [WET] - P. promelasminimumreport only (%)all year
Whole Effluent Toxicity [WET] - D. magnaminimumreport only (%)all 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/PR0025216 · MCP: https://passage-data.com/mcp