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Prasa Humacao-Las Piedras WTP

Water Supply, Humacao, Puerto Rico. NPDES permit PR0022829 expired Aug 31, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (13 values), form Q quarterly, form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 18 reports late

Limits in force (27)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximum≤ 30 deg Call year
Turbiditydaily maximum≤ 50 NTUall year
Turbiditydaily maximum≤ 1255 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≤ 30 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
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 maximum≤ 250 mg/Lall year
Cadmium, total [as Cd]daily maximum≤ .6 ug/Lall year
Copper, total [as Cu]daily maximum≤ 6.9 ug/Lall year
Copper, total [as Cu]daily maximum≤ 167 ug/Lall year
Lead, total [as Pb]daily maximum≤ 2.04 ug/Lall year
Lead, total [as Pb]daily maximum≤ 56.2 ug/Lall year
Zinc, total [as Zn]daily maximum≤ 88.99 ug/Lall year
Zinc, total [as Zn]daily maximum≤ 224.57 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximum≤ .34 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
Solids, total dissolveddaily maximum≤ 500 mg/Lall year
Ammonia & ammonium- totaldaily maximumreport only (mg/L)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/PR0022829 · MCP: https://passage-data.com/mcp