Puerto Rico Electric PWR Auth — NPDES permit PR0001147: limits, due date and EPA's record

Electric Services, major discharger, Guayanilla, Puerto Rico. NPDES permit PR0001147 expired Aug 31, 2023; its limits still apply. Last 12 months: no values over a limit, 8 of 106 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (107)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	001
Temperature, water deg. centigrade	daily maximum	≤ 41.1 deg C	all year	001
Temperature, water deg. fahrenheit	daily maximum	report only (deg F)	all year	001
Color [PT-CO units]	daily maximum	report only (col unit (pc))	all year	001
Oxygen, dissolved [DO]	instantaneous minimum	≥ 4 mg/L	all year	001
pH	minimum	≥ 7.3 SU	all year	001
pH	maximum	≤ 8.5 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	daily average	≤ 30 mg/L	all year	001
Solids, total suspended	daily average	≤ 30 mg/L	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	daily average	≤ 30 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	001
Solids, total suspended	daily average	≤ 30 kg/d	all year	001
Solids, total suspended	daily maximum	≤ 100 kg/d	all year	001
Solids, settleable	daily maximum	report only (mL/L)	all year	001
Oil & Grease	daily maximum	report only (mg/L)	all year	001
Oil & Grease	daily average	≤ 15 mg/L	all year	001
Oil & Grease	daily average	≤ 15 mg/L	all year	001
Oil & Grease	daily average	≤ 15 mg/L	all year	001
Oil & Grease	daily average	≤ 15 mg/L	all year	001
Oil & Grease	daily average	≤ 15 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Chromium, total [as Cr]	daily average	≤ .2 mg/L	all year	001
Chromium, total [as Cr]	daily average	≤ .2 mg/L	all year	001
Chromium, total [as Cr]	daily average	≤ .2 mg/L	all year	001
Chromium, total [as Cr]	daily maximum	≤ .2 mg/L	all year	001
Chromium, total [as Cr]	daily maximum	≤ .2 mg/L	all year	001
Chromium, total [as Cr]	daily maximum	≤ .2 mg/L	all year	001
Copper, total [as Cu]	daily maximum	report only (ug/L)	all year	001
Copper, total [as Cu]	daily average	≤ 1 kg/d	all year	001
Copper, total [as Cu]	daily maximum	≤ 1 kg/d	all year	001
Iron, total [as Fe]	daily average	≤ 1 kg/d	all year	001
Iron, total [as Fe]	daily maximum	≤ 1 kg/d	all year	001
Zinc, total [as Zn]	daily maximum	report only (ug/L)	all year	001
Zinc, total [as Zn]	daily average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	daily average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	daily average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 1 mg/L	all year	001
Polychlorinated biphenyls [PCBs]	daily maximum	report only (ug/L)	all year	001
Polychlorinated biphenyls [PCBs]	daily maximum	report only (ug/L)	all year	001
Polychlorinated biphenyls [PCBs]	daily maximum	report only (ug/L)	all year	001
Temperature, length of excursion	monthly total	report only (d)	all year	001
Temperature, length of excursion	annual total	≤ 4 d	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, Excluding Stormwater Discharge	weekly average	report only (MGD)	all year	001
Flow, Excluding Stormwater Discharge	monthly average	report only (MGD)	all year	001
Flow, Excluding Stormwater Discharge	daily maximum	≤ 751.5 MGD	all year	001
Chlorine, total residual	daily average	≤ .2 mg/L	all year	001
Chlorine, total residual	daily average	≤ .2 mg/L	all year	001
Chlorine, total residual	daily average	≤ .2 mg/L	all year	001
Chlorine, total residual	daily maximum	≤ .2 mg/L	all year	001
Chlorine, total residual	daily maximum	≤ .2 mg/L	all year	001
Chlorine, total residual	daily maximum	≤ .2 mg/L	all year	001
Chlorine, free available	daily average	≤ .2 mg/L	all year	001
Chlorine, free available	monthly average	≤ .2 mg/L	all year	001
Chlorine, free available	daily average	≤ .2 mg/L	all year	001
Chlorine, free available	daily maximum	≤ .5 mg/L	all year	001
Chlorine, free available	daily maximum	≤ .5 mg/L	all year	001
Chlorine, free available	daily maximum	≤ .5 mg/L	all year	001
Whole Effluent Toxicity [WET] - M. beryllina	minimum	report only (%)	all year	001
Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia)	minimum	report only (%)	all year	001
Temperature, water deg. centigrade	daily maximum	≤ 32.2 deg C	all year	002
Turbidity	daily maximum	≤ 10 NTU	all year	002
Color [PT-CO units]	daily maximum	report only (col unit (pc))	all year	002
Oxygen, dissolved [DO]	instantaneous minimum	≥ 4 mg/L	all year	002
pH	minimum	≥ 7.3 SU	all year	002
pH	maximum	≤ 8.5 SU	all year	002
Solids, settleable	daily maximum	report only (mL/L)	all year	002
Oil & Grease	daily maximum	report only (mg/L)	all year	002
Copper, total [as Cu]	daily maximum	≤ 3.73 ug/L	all year	002
Polychlorinated biphenyls [PCBs]	daily maximum	report only (ug/L)	all year	002
Storm water flow	daily maximum	report only (MGD)	all year	002
Temperature, water deg. centigrade	daily maximum	≤ 32.2 deg C	all year	003
Turbidity	daily maximum	≤ 10 NTU	all year	003
Color [PT-CO units]	daily maximum	report only (col unit (pc))	all year	003
Oxygen, dissolved [DO]	instantaneous minimum	≥ 4 mg/L	all year	003
pH	minimum	≥ 7.3 SU	all year	003
pH	maximum	≤ 8.5 SU	all year	003
Solids, settleable	daily maximum	report only (mL/L)	all year	003
Oil & Grease	daily maximum	report only (mg/L)	all year	003
Copper, total [as Cu]	daily maximum	≤ 3.73 ug/L	all year	003
Polychlorinated biphenyls [PCBs]	daily maximum	report only (ug/L)	all year	003
Storm water flow	daily maximum	report only (MGD)	all year	003

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/PR0001147 · MCP: https://passage-data.com/mcp