Clean Water Act discharge permit · NPDES PR0024180
PRASA WTP CIALES, Ciales, PR: NPDES PR0024180 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 18Pollutants under a numeric limit
- 20Pollutants with an effluent exceedance
PRASA WTP CIALES, held by PRASA CIALES WTP, holds NPDES permit PR0024180, which discharges to Sonadora Creek. EPA’s file records it issued September 28, 2016 and expiring November 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | PRASA WTP CIALES |
|---|---|
| Permittee as filed | PRASA CIALES WTP |
| NPDES ID | PR0024180 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 28, 2016 |
| Expiration date | November 30, 2021 |
| Address | Ciales, PR 00638 |
| Receiving water | SONADORA CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Rio Cialitos (HUC 210100020209) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 39Pollutants on file
- 18Under a numeric limit
- 39With a violation of any kind
- 20With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 2 | 179 | 161 | October 31, 2016 | 11,250% over the limit |
| Lead, total [as Pb] | 1 | 155 | 136 | August 31, 2025 | 7,511% over the limit |
| Chlorine, total residual | 1 | 145 | 129 | January 31, 2017 | 99,900% over the limit |
| Turbidity | 2 | 135 | 122 | May 31, 2017 | |
| Arsenic, total [as As] | 1 | 103 | 83 | May 31, 2017 | 19,844% over the limit |
| Mercury, total [as Hg] | 1 | 91 | 72 | May 31, 2017 | 39,067% over the limit |
| Phosphorus, total [as P] | 3 | 81 | 66 | July 31, 2022 | 7,491,066% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 73 | 55 | October 31, 2016 | 404% over the limit |
| Zinc, total [as Zn] | 2 | 64 | 41 | April 30, 2014 | 482% over the limit |
| Cadmium, total [as Cd] | 2 | 46 | 27 | January 31, 2017 | 5,567% over the limit |
| Cyanide, total [as CN] | 0 | 28 | 16 | May 31, 2007 | 150% over the limit |
| Color [PT-CO units] | 2 | 26 | 4 | May 31, 2009 | |
| Temperature, water deg. centigrade | 1 | 20 | 3 | June 30, 2015 | 698% over the limit |
| Ammonia & ammonium- total | 1 | 20 | 3 | February 29, 2024 | 1,100% over the limit |
| Sulfide, total [as S] | 0 | 14 | 3 | September 30, 2007 | 99,900% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 12 | 2 | September 30, 2007 | 93% over the limit |
| pH | 2 | 37 | 1 | February 29, 2008 | |
| Coliform, fecal general | 0 | 24 | 1 | October 31, 2007 | 99,999% over the limit |
| Cyanide, free available | 2 | 9 | 1 | February 28, 2009 | 12,292% over the limit |
| Coliform, fecal - % samples exceeding limit | 0 | 5 | 1 | March 31, 2004 | 210% over the limit |
| Oxygen, dissolved [DO] | 2 | 21 | 0 | ||
| Solids, settleable | 1 | 18 | 0 | ||
| Oil & Grease | 0 | 14 | 0 | ||
| Phenolics, total recoverable | 0 | 14 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 12 | 0 | ||
| Solids, total dissolved- 180 deg. C | 0 | 11 | 0 | ||
| Sulfide-hydrogen sulfide [undissociated] | 0 | 9 | 0 | ||
| Manganese, total [as Mn] | 0 | 8 | 0 | ||
| Fluoride, total [as F] | 0 | 5 | 0 | ||
| Nitrogen, ammonia, total [as NH3] | 0 | 3 | 0 | ||
| 2-Methyl-4,6-dinitrophenol | 0 | 2 | 0 | ||
| 2-Chlorophenol | 0 | 2 | 0 | ||
| 2,4-Dichlorophenol | 0 | 2 | 0 | ||
| 2,4-Dimethylphenol | 0 | 2 | 0 | ||
| 2,4-Dinitrophenol | 0 | 2 | 0 | ||
| 2,4,6-Trichlorophenol | 0 | 2 | 0 | ||
| Pentachlorophenol | 0 | 2 | 0 | ||
| Sulfate, total [as SO4] | 2 | 1 | 0 | ||
| Solids, total dissolved | 0 | 1 | 0 |
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES PR0024180.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
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Start the watch
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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 PR0024180 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.