Velarion Records

Clean Water Act discharge permit · NPDES PR0001031

PUERTO RICO ELECTRIC PWR AUTH, Toa Baja, PR: NPDES PR0001031 discharge permit, effluent exceedances, inspections, penalties

PUERTO RICO ELECTRIC PWR AUTH holds NPDES permit PR0001031, which discharges to Ensc De Bocaviej. EPA’s file records it issued December 27, 1991 and expiring February 28, 1997. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedPUERTO RICO ELECTRIC PWR AUTH
Permittee as filedPUERTO RICO ELECTRIC PWR AUTH
NPDES IDPR0001031
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 27, 1991
Expiration dateFebruary 28, 1997
AddressToa Baja, PR 00758
Receiving waterENSC DE BOCAVIEJ
Receiving water impaired303(D) Listed
SubwatershedCienaga de las Cucharillas Drainage Watershed (HUC 210100050503)
SIC4911 – Electric Services
Other EPA IDs (FRS)RCRA handler PRR000023523; ICIS-AIR source PR0000007213700006

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Temperature, water deg. centigrade4193140September 30, 20231,117% over the limit
pH18343110October 31, 2022
Solids, total suspended20376104June 30, 20262,733% over the limit
Copper, total [as Cu]7196103October 31, 20252,200% over the limit
Zinc, total [as Zn]923993July 31, 201510,900% over the limit
Iron, total [as Fe]615283October 31, 201599,400% over the limit
Oil & Grease2036359August 31, 201125,233% over the limit
Turbidity36327June 30, 2016
Flow, in conduit or thru treatment plant815021February 28, 202263% over the limit
Oxygen demand, chem. [high level] [COD]36520April 30, 20151,496% over the limit
Nickel, total [as Ni]0238February 28, 2025405% over the limit
Cyanide, free available0188June 30, 2026190% over the limit
Chromium, total [as Cr]2516July 31, 20159,900% over the limit
Oxygen, dissolved [DO]5724November 30, 200760% over the limit
Chlorine, total residual1284March 31, 2023830% over the limit
Sulfates, total [as SO4]074September 30, 201638% over the limit
Chlorine, free available4883March 31, 202390% over the limit
BOD, 5-day, 20 deg. C5901September 30, 199513% over the limit
Mercury, total [as Hg]071November 30, 202194% over the limit
Sulfide-hydrogen sulfide [undissociated]061March 31, 2017455% over the limit
Polychlorinated biphenyls [PCBs]3770
Chromium, hexavalent [as Cr]3500
Color [PT-CO units]4490
Solids, settleable3330
Thallium, total [as Tl]0120
Pentachlorophenol060
Silver, total [as Ag]030
Arsenic, total [as As]020
Cadmium, total [as Cd]020
Priority Pollutants020
Nitrogen, Total020
Toxicity, Acute020
Temperature, water deg. fahrenheit010
Priority Pollutant Results010

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

DateWhat EPA recordedAgency
May 20, 2022Effluent Violations - Numeric effluent violationEP6
May 20, 2022Management Practice Violations - Best Management Practice DeficienciesEP6
May 20, 2022Management Practice Violations - Improper Operation and MaintenanceEP6
June 22, 2021Effluent Violations - Numeric effluent violationEP6
March 12, 2020Effluent Violations - Numeric effluent violationEP6
August 9, 2017Effluent Violations - Numeric effluent violationEP6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, PR0001031.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID PR0001031 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

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