PRASA Juncos WTP — NPDES permit PR0022811: limits, due date and EPA's record

Water Supply, Juncos, Puerto Rico. NPDES permit PR0022811, in force until Sep 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (25)

Parameter	Statistic	Limit	Months
Temperature, water deg. centigrade	daily maximum	≤ 30 deg C	all year
Turbidity	daily maximum	≤ 50 NTU	all year
Turbidity	daily maximum	≤ 6778 NTU	all year
Color [PT-CO units]	daily maximum	≤ 15 col unit (pc)	all year
Oxygen, dissolved [DO]	instantaneous minimum	≥ 5 mg/L	all year
BOD, 5-day, 20 deg. C	daily maximum	≤ 25 mg/L	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, settleable	daily maximum	report only (mL/L)	all year
Phosphorus, total [as P]	daily maximum	≤ 160 ug/L	all year
Phosphorus, total [as P]	daily maximum	≤ 10.79 mg/L	all year
Sulfate, total [as SO4]	daily maximum	≤ 250 mg/L	all year
Copper, total [as Cu]	daily maximum	≤ 527.49 ug/L	all year
Copper, total [as Cu]	daily maximum	≤ 9.7 ug/L	all year
Zinc, total [as Zn]	daily maximum	≤ 560.64 ug/L	all year
Zinc, total [as Zn]	daily maximum	≤ 124.5 ug/L	all year
Flow, in conduit or thru treatment plant	daily maximum	≤ .104 MGD	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	daily maximum	≤ 11 ug/L	all year
Whole Effluent Toxicity [WET] - P. promelas	minimum	report only (%)	all year
Whole Effluent Toxicity [WET] - D. magna	minimum	report only (%)	all year
Solids, total dissolved	daily maximum	≤ 500 mg/L	all year
Mercury, total [as Hg]	daily maximum	≤ .05 ug/L	all year
Mercury, total [as Hg]	daily maximum	≤ .05 ug/L	all year
Ammonia & ammonium- total	daily maximum	≤ .081 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.

Your permit document is the final word. As JSON: /api/v1/permits/PR0022811 · MCP: https://passage-data.com/mcp