Clean Water Act discharge permit · NPDES PR0023396
MUNICIPAL PUBLIC WORKS, Mayaguez, PR: NPDES PR0023396 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 22Pollutants under a numeric limit
- 22Pollutants with an effluent exceedance
MUNICIPAL PUBLIC WORKS, held by MAYAGUEZ MUN GOVT-PUB WORKS CT, holds NPDES permit PR0023396, which discharges to Qb De Los Muerts. EPA’s file records it issued May 2, 2007 and expiring July 31, 2012. 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 filed | MUNICIPAL PUBLIC WORKS |
|---|---|
| Permittee as filed | MAYAGUEZ MUN GOVT-PUB WORKS CT |
| NPDES ID | PR0023396 |
| 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 | May 2, 2007 |
| Expiration date | July 31, 2012 |
| Address | Mayaguez, PR 00708 |
| Receiving water | QB DE LOS MUERTS |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Rio Caguitas (HUC 210100050404) |
| SIC | 9111 – Executive Offices |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 31Pollutants on file
- 22Under a numeric limit
- 31With a violation of any kind
- 22With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, percent removal | 1 | 100 | 50 | November 30, 2023 | 99,999% over the limit |
| Solids, suspended percent removal | 1 | 100 | 50 | November 30, 2023 | 99,999% over the limit |
| Fluoride, total [as F] | 1 | 71 | 45 | October 31, 2019 | 51,043% over the limit |
| Surfactants [MBAS] | 1 | 92 | 38 | September 30, 2023 | 90,900% over the limit |
| Flow, in conduit or thru treatment plant | 1 | 108 | 34 | June 30, 2019 | 713% over the limit |
| Nitrite + Nitrate total [as N] | 1 | 57 | 34 | September 30, 2020 | 106,110% over the limit |
| Coliform, fecal general | 1 | 53 | 27 | October 31, 2019 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 1 | 74 | 24 | September 30, 2022 | 99,999% over the limit |
| Coliform, total general | 1 | 39 | 16 | September 30, 2020 | 99,999% over the limit |
| Nitrogen, total [as N] | 0 | 40 | 12 | November 30, 2023 | 529% over the limit |
| Sulfide, total [as S] | 1 | 34 | 11 | February 29, 2020 | 410,900% over the limit |
| Coliform, fecal - % samples exceeding limit | 1 | 32 | 10 | October 31, 2019 | 400% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 169 | 8 | May 31, 2018 | 100% over the limit |
| Solids, total suspended | 2 | 159 | 5 | July 31, 2022 | 297% over the limit |
| Solids, total dissolved | 0 | 33 | 5 | October 31, 2022 | 107% over the limit |
| Oil & Grease | 1 | 55 | 4 | April 30, 2001 | 16,450% over the limit |
| Color [PT-CO units] | 1 | 38 | 4 | June 30, 2023 | |
| Phosphorus, total [as P] | 0 | 33 | 4 | November 30, 2023 | 731% over the limit |
| Solids, total dissolved- 180 deg. C | 1 | 27 | 4 | April 30, 2019 | 83% over the limit |
| Enterococci | 0 | 34 | 3 | May 31, 2022 | 375% over the limit |
| Temperature, water deg. centigrade | 1 | 52 | 2 | October 31, 2002 | 9% over the limit |
| Turbidity | 1 | 36 | 2 | December 31, 2006 | |
| pH | 2 | 100 | 0 | ||
| Chlorine, total residual | 1 | 51 | 0 | ||
| Solids, settleable | 1 | 50 | 0 | ||
| Ammonia & ammonium- total | 0 | 31 | 0 | ||
| Ammonia nitrogen, total, [as N] 30 day | 1 | 22 | 0 | ||
| Sulfide-hydrogen sulfide [undissociated] | 0 | 11 | 0 | ||
| Whole Effluent Toxicity [WET] - P. promelas | 0 | 3 | 0 | ||
| Whole Effluent Toxicity [WET] - D. magna | 0 | 3 | 0 | ||
| Chloride [as Cl] | 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 PR0023396.
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.
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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 PR0023396 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.