Clean Water Act discharge permit · NPDES PR0022951
PRASA WTP LAS MARIAS, Las Marias, PR: NPDES PR0022951 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 19Pollutants with an effluent exceedance
PRASA WTP LAS MARIAS, held by PRASA - Las Marias WTP, holds NPDES permit PR0022951, which discharges to Mayaguecillo Cre. EPA’s file records it issued April 21, 1989 and expiring May 31, 1994. 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 LAS MARIAS |
|---|---|
| Permittee as filed | PRASA - Las Marias WTP |
| NPDES ID | PR0022951 |
| 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 | April 21, 1989 |
| Expiration date | May 31, 1994 |
| Address | Las Marias, PR 00670 |
| Receiving water | MAYAGUECILLO CRE |
| Subwatershed | Rio Mayaguecillo (HUC 210100030207) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 33Pollutants on file
- 0Under a numeric limit
- 33With a violation of any kind
- 19With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 0 | 248 | 177 | November 30, 2012 | 500% over the limit |
| Copper, total [as Cu] | 0 | 217 | 150 | November 30, 2012 | 9,443% over the limit |
| Turbidity | 0 | 205 | 140 | November 30, 2012 | |
| Phosphorus, total [as P] | 0 | 159 | 90 | November 30, 2012 | 2,220% over the limit |
| Iron, total [as Fe] | 0 | 71 | 70 | February 29, 2008 | 23,233% over the limit |
| Lead, total [as Pb] | 0 | 133 | 64 | November 30, 2012 | 3,190,376% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 174 | 55 | November 30, 2012 | 111,900% over the limit |
| Zinc, total [as Zn] | 0 | 118 | 51 | December 31, 2009 | 1,370% over the limit |
| Oxygen, dissolved [DO] | 0 | 85 | 17 | January 31, 2011 | 99,999% over the limit |
| Nitrite + Nitrate total [as N] | 0 | 83 | 15 | August 31, 2011 | 7,410% over the limit |
| Coliform, total general | 0 | 82 | 10 | February 28, 2005 | 99,999% over the limit |
| Color [PT-CO units] | 0 | 76 | 9 | November 30, 2005 | |
| BOD, 5-day, 20 deg. C | 0 | 75 | 7 | February 28, 2009 | 35,456% over the limit |
| Oil & Grease | 0 | 75 | 4 | November 30, 2006 | 51,900% over the limit |
| Coliform, fecal general | 0 | 73 | 2 | February 28, 2010 | 99,999% over the limit |
| Coliform, fecal - % samples exceeding limit | 0 | 67 | 2 | February 28, 2011 | 400% over the limit |
| pH | 0 | 137 | 1 | August 31, 1994 | |
| Fluoride, total [as F] | 0 | 73 | 1 | February 28, 1999 | 49% over the limit |
| Chloride [as Cl] | 0 | 4 | 1 | November 30, 2006 | 10,060% over the limit |
| Solids, settleable | 0 | 71 | 0 | ||
| Temperature, water deg. centigrade | 0 | 68 | 0 | ||
| Phenol | 0 | 66 | 0 | ||
| 2-Methyl-4,6-dinitrophenol | 0 | 65 | 0 | ||
| 2-Chlorophenol | 0 | 65 | 0 | ||
| 2,4-Dichlorophenol | 0 | 65 | 0 | ||
| 2,4-Dimethylphenol | 0 | 65 | 0 | ||
| 2,4-Dinitrophenol | 0 | 65 | 0 | ||
| 2,4,6-Trichlorophenol | 0 | 65 | 0 | ||
| Nitrogen, ammonia, total [as NH3] | 0 | 65 | 0 | ||
| Pentachlorophenol | 0 | 65 | 0 | ||
| Solids, total dissolved | 0 | 57 | 0 | ||
| Sulfate, total [as SO4] | 0 | 3 | 0 | ||
| Solids, total dissolved- 180 deg. C | 0 | 3 | 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 PR0022951.
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
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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 PR0022951 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.