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PRASA - Fronton WTP

Water Supply, Ciales, Puerto Rico. NPDES permit PR0026441, in force until Aug 31, 2028. Last 12 months: over a limit 5 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (15 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
6 values over a limit, 0 required values missing, 1 of 17 reports late

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

Period endingParameterReportedLimitOver by
April 2026Lead, total [as Pb], daily maximum66.95 ug/L≤ 2.13 ug/L3043%
May 2026Lead, total [as Pb], daily maximum3.66 ug/L≤ 2.13 ug/L72%
May 2026Turbidity, daily maximum270 NTU≤ 110 NTU—
June 2026BOD, 5-day, 20 deg. C, daily maximum19.6 mg/L≤ 5 mg/L292%
August 2026BOD, 5-day, 20 deg. C, daily maximum6.83 mg/L≤ 5 mg/L37%

Limits in force (25)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximum≤ 30 deg Call year
Turbiditydaily maximum≤ 50 NTUall year
Turbiditydaily maximum≤ 110 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
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
Phosphorus, total [as P]daily maximumreport only (ug/L)all year
Sulfate, total [as SO4]daily maximum≤ 250 mg/Lall year
Arsenic, total [as As]daily maximum≤ 10 ug/Lall year
Cadmium, total [as Cd]daily maximum≤ .61 ug/Lall year
Copper, total [as Cu]daily maximum≤ 7.13 ug/Lall year
Copper, total [as Cu]daily maximumreport only (ug/L)all year
Lead, total [as Pb]daily maximum≤ 2.13 ug/Lall year
Silver, total [as Ag]daily maximum≤ 2.2 ug/Lall year
Selenium, total [as Se]daily maximum≤ 5 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximum≤ .0616 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 11 ug/Lall year
Solids, total dissolveddaily maximum≤ 500 mg/Lall year
Mercury, total [as Hg]daily maximum≤ .05 ug/Lall year
Ammonia & ammonium- totaldaily maximum≤ .21 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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Your permit document is the final word. As JSON: /api/v1/permits/PR0026441 · MCP: https://passage-data.com/mcp