NPDES PR0001031 · Clean Water Act
PUERTO RICO ELECTRIC PWR AUTH, Toa Baja, PR: NPDES PR0001031 discharge permit, effluent exceedances, inspections, penalties
PUERTO RICO ELECTRIC PWR AUTH, Toa Baja, Puerto Rico: Individual permit PR0001031; Administratively continued; issued December 27, 1991, term to February 28, 1997; discharges to ENSC DE BOCAVIEJ.
- Temperature, water deg. centigrade: 4 limits, 193 violations of any kind, 140 effluent exceedances, latest September 30, 2023, largest 1,117% over the limit.
- pH: 18 limits, 343 violations of any kind, 110 effluent exceedances, latest October 31, 2022.
- Solids, total suspended: 20 limits, 376 violations of any kind, 104 effluent exceedances, latest June 30, 2026, largest 2,733% over the limit.
- Copper, total [as Cu]: 7 limits, 196 violations of any kind, 103 effluent exceedances, latest October 31, 2025, largest 2,200% over the limit.
- Zinc, total [as Zn]: 9 limits, 239 violations of any kind, 93 effluent exceedances, latest July 31, 2015, largest 10,900% over the limit.
- Iron, total [as Fe]: 6 limits, 152 violations of any kind, 83 effluent exceedances, latest October 31, 2015, largest 99,400% over the limit.
- Oil & Grease: 20 limits, 363 violations of any kind, 59 effluent exceedances, latest August 31, 2011, largest 25,233% over the limit.
- Turbidity: 3 limits, 63 violations of any kind, 27 effluent exceedances, latest June 30, 2016.
- Flow, in conduit or thru treatment plant: 8 limits, 150 violations of any kind, 21 effluent exceedances, latest February 28, 2022, largest 63% over the limit.
- Oxygen demand, chem. [high level] [COD]: 3 limits, 65 violations of any kind, 20 effluent exceedances, latest April 30, 2015, largest 1,496% over the limit.
- Nickel, total [as Ni]: 0 limits, 23 violations of any kind, 8 effluent exceedances, latest February 28, 2025, largest 405% over the limit.
- Cyanide, free available: 0 limits, 18 violations of any kind, 8 effluent exceedances, latest June 30, 2026, largest 190% over the limit.
- Chromium, total [as Cr]: 2 limits, 51 violations of any kind, 6 effluent exceedances, latest July 31, 2015, largest 9,900% over the limit.
- Oxygen, dissolved [DO]: 5 limits, 72 violations of any kind, 4 effluent exceedances, latest November 30, 2007, largest 60% over the limit.
- Chlorine, total residual: 1 limit, 28 violations of any kind, 4 effluent exceedances, latest March 31, 2023, largest 830% over the limit.
- Sulfates, total [as SO4]: 0 limits, 7 violations of any kind, 4 effluent exceedances, latest September 30, 2016, largest 38% over the limit.
- Chlorine, free available: 4 limits, 88 violations of any kind, 3 effluent exceedances, latest March 31, 2023, largest 90% over the limit.
- BOD, 5-day, 20 deg. C: 5 limits, 90 violations of any kind, 1 effluent exceedance, latest September 30, 1995, largest 13% over the limit.
- Mercury, total [as Hg]: 0 limits, 7 violations of any kind, 1 effluent exceedance, latest November 30, 2021, largest 94% over the limit.
- Sulfide-hydrogen sulfide [undissociated]: 0 limits, 6 violations of any kind, 1 effluent exceedance, latest March 31, 2017, largest 455% over the limit.
- Polychlorinated biphenyls [PCBs]: 3 limits, 77 violations of any kind.
- Chromium, hexavalent [as Cr]: 3 limits, 50 violations of any kind.
- Color [PT-CO units]: 4 limits, 49 violations of any kind.
- Solids, settleable: 3 limits, 33 violations of any kind.
- Thallium, total [as Tl]: 0 limits, 12 violations of any kind.
- Pentachlorophenol: 0 limits, 6 violations of any kind.
- Silver, total [as Ag]: 0 limits, 3 violations of any kind.
- Arsenic, total [as As]: 0 limits, 2 violations of any kind.
- Cadmium, total [as Cd]: 0 limits, 2 violations of any kind.
- Priority Pollutants: 0 limits, 2 violations of any kind.
- Nitrogen, Total: 0 limits, 2 violations of any kind.
- Toxicity, Acute: 0 limits, 2 violations of any kind.
- Temperature, water deg. fahrenheit: 0 limits, 1 violation of any kind.
- Priority Pollutant Results: 0 limits, 1 violation of any kind.
- May 20, 2022: Effluent Violations - Numeric effluent violation (EP6).
- May 20, 2022: Management Practice Violations - Best Management Practice Deficiencies (EP6).
- May 20, 2022: Management Practice Violations - Improper Operation and Maintenance (EP6).
- June 22, 2021: Effluent Violations - Numeric effluent violation (EP6).
- March 12, 2020: Effluent Violations - Numeric effluent violation (EP6).
- August 9, 2017: Effluent Violations - Numeric effluent violation (EP6).
Other permits held by PUERTO RICO ELECTRIC PWR AUTH
- PUERTO RICO ELECTRIC PWR AUTH, San Juan: PR0000698, issued 2007-01-11
- PUERTO RICO ELECTRIC PWR AUTH, Salinas: PR0001660, issued 2010-09-30
PUERTO RICO ELECTRIC PWR AUTH among its neighbors
33 discharge permits are in the Cienaga de las Cucharillas Drainage Watershed subwatershed (HUC 210100050503); PR0001031 is one. Its county: 6, 1 major; PR0001031 is major permit.
Other permits in the Cienaga de las Cucharillas Drainage Watershed subwatershed (HUC 210100050503)
- ABF FREIGHT SYSTEM, INC., Guaynabo: PRNOEJ00Q, minor, term to 2025-02-24
- ARMY RESERVE TRAINING CENTER (USARC) AT FORT BUCHANAN, Guaynabo: PRR1000LG, minor, term to 2027-02-16
- BACARDI CORP, Catano: PRR05BJ63
- BACARDI CORP, Catano: PRR12A289
- BACARDI CORPORATION, CatañO: PRR053117, minor, term to 2020-06-03
- BACARDI CORPORATION, San Juan: PRR053119, minor, term to 2020-06-03
- BAXTER HEALTHCARE SA - CATANO, Catano: PRNOEJ01Z, minor, term to 2027-11-11
- BEST PETROLEUM CORP., Guaynabo: PRNOE0002, minor, term to 2023-04-17
- CEMEX GUAYNABO I READY MIX SITE, Guaynabo: PRR05BO94
- ECOLAB MANUFACTURING, INC, Bayamon: PRNOE3265, minor, term to 2021-01-19
Identity
| Facility | PUERTO RICO ELECTRIC PWR AUTH |
|---|---|
| Permittee | PUERTO RICO ELECTRIC PWR AUTH |
| NPDES ID | PR0001031 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Non-POTW |
| Issued | December 27, 1991 |
| Expires | February 28, 1997 |
| Address | Toa Baja, PR 00758 |
| Receiving water | ENSC DE BOCAVIEJ |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cienaga de las Cucharillas Drainage Watershed (HUC 210100050503) |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler PRR000023523; ICIS-AIR source PR0000007213700006 |
NPDES PR0001031: effluent limits and exceedances
PUERTO RICO ELECTRIC PWR AUTH (NPDES PR0001031): 34 pollutants on file, 19 limited; 34 with a violation of any kind, 20 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Temperature, water deg. centigrade | 4 | 193 | 140 | September 30, 2023 | 1,117% over the limit |
| pH | 18 | 343 | 110 | October 31, 2022 | |
| Solids, total suspended | 20 | 376 | 104 | June 30, 2026 | 2,733% over the limit |
| Copper, total [as Cu] | 7 | 196 | 103 | October 31, 2025 | 2,200% over the limit |
| Zinc, total [as Zn] | 9 | 239 | 93 | July 31, 2015 | 10,900% over the limit |
| Iron, total [as Fe] | 6 | 152 | 83 | October 31, 2015 | 99,400% over the limit |
| Oil & Grease | 20 | 363 | 59 | August 31, 2011 | 25,233% over the limit |
| Turbidity | 3 | 63 | 27 | June 30, 2016 | |
| Flow, in conduit or thru treatment plant | 8 | 150 | 21 | February 28, 2022 | 63% over the limit |
| Oxygen demand, chem. [high level] [COD] | 3 | 65 | 20 | April 30, 2015 | 1,496% over the limit |
| Nickel, total [as Ni] | 0 | 23 | 8 | February 28, 2025 | 405% over the limit |
| Cyanide, free available | 0 | 18 | 8 | June 30, 2026 | 190% over the limit |
| Chromium, total [as Cr] | 2 | 51 | 6 | July 31, 2015 | 9,900% over the limit |
| Oxygen, dissolved [DO] | 5 | 72 | 4 | November 30, 2007 | 60% over the limit |
| Chlorine, total residual | 1 | 28 | 4 | March 31, 2023 | 830% over the limit |
| Sulfates, total [as SO4] | 0 | 7 | 4 | September 30, 2016 | 38% over the limit |
| Chlorine, free available | 4 | 88 | 3 | March 31, 2023 | 90% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 90 | 1 | September 30, 1995 | 13% over the limit |
| Mercury, total [as Hg] | 0 | 7 | 1 | November 30, 2021 | 94% over the limit |
| Sulfide-hydrogen sulfide [undissociated] | 0 | 6 | 1 | March 31, 2017 | 455% over the limit |
| Polychlorinated biphenyls [PCBs] | 3 | 77 | 0 | ||
| Chromium, hexavalent [as Cr] | 3 | 50 | 0 | ||
| Color [PT-CO units] | 4 | 49 | 0 | ||
| Solids, settleable | 3 | 33 | 0 | ||
| Thallium, total [as Tl] | 0 | 12 | 0 | ||
| Pentachlorophenol | 0 | 6 | 0 | ||
| Silver, total [as Ag] | 0 | 3 | 0 | ||
| Arsenic, total [as As] | 0 | 2 | 0 | ||
| Cadmium, total [as Cd] | 0 | 2 | 0 | ||
| Priority Pollutants | 0 | 2 | 0 | ||
| Nitrogen, Total | 0 | 2 | 0 | ||
| Toxicity, Acute | 0 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 1 | 0 | ||
| Priority Pollutant Results | 0 | 1 | 0 |
NPDES PR0001031: inspections, violations and enforcement
NPDES PR0001031: 6 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 20, 2022 | Effluent Violations - Numeric effluent violation | EP6 |
| May 20, 2022 | Management Practice Violations - Best Management Practice Deficiencies | EP6 |
| May 20, 2022 | Management Practice Violations - Improper Operation and Maintenance | EP6 |
| June 22, 2021 | Effluent Violations - Numeric effluent violation | EP6 |
| March 12, 2020 | Effluent Violations - Numeric effluent violation | EP6 |
| August 9, 2017 | Effluent Violations - Numeric effluent violation | EP6 |
NPDES PR0001031 (PUERTO RICO ELECTRIC PWR AUTH): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES PR0001031
NPDES PR0001031: one email when its EPA record changes — $99/month.
Permits near NPDES PR0001031
NPDES PR0001031: 34 pollutant rows, 6 dated events; ICIS-NPDES download, loaded October 14, 2026.