Velarion Records

Clean Water Act discharge permit · NPDES PR0025399

PRASA HUMACAO WWTP, Bo. Rio Abajo, PR: NPDES PR0025399 discharge permit, effluent exceedances, inspections, penalties

PRASA HUMACAO WWTP holds NPDES permit PR0025399, which discharges to Caribbean Sea. EPA’s file records it issued May 4, 1992 and expiring March 31, 1998. 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 filedPRASA HUMACAO WWTP
Permittee as filedPRASA HUMACAO WWTP
NPDES IDPR0025399
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 4, 1992
Expiration dateMarch 31, 1998
AddressBo. Rio Abajo, PR 00661
Receiving waterCARIBBEAN SEA
Program components on filePOTW, Pretreatment
SIC4952 – Sewerage Systems

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

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
Lindane2124104April 30, 2011174,900% over the limit
BOD, 5-day, 20 deg. C421388January 31, 2023538% over the limit
pH421652April 30, 2017
Turbidity27633March 31, 2020
Solids, total suspended415632March 31, 2020675% over the limit
Mercury, total [as Hg]38412April 30, 201911,900% over the limit
BOD, 5-day, percent removal14612January 31, 2019340% over the limit
Coliform, total general23511August 31, 200999,999% over the limit
Aldrin + Dieldrin2356January 31, 199899,900% over the limit
Chlordane [tech mix. and metabolites]2316January 31, 19982,499,900% over the limit
Heptachlor2316January 31, 199899,900% over the limit
Phenolics, total recoverable4585December 31, 20052,580% over the limit
Solids, suspended percent removal1395January 31, 201967% over the limit
Flow, in conduit or thru treatment plant4642September 30, 20087% over the limit
Nitrogen, total [as N]1432July 31, 2025245% over the limit
Chlorine, total residual022September 30, 202452% over the limit
Coliform, fecal general2431March 31, 201826% over the limit
Zinc, total [as Zn]1310
Selenium, total [as Se]2240
Arsenic, total [as As]2230
Barium, total [as Ba]2230
Boron, total [as B]2230
Chromium, total [as Cr]2230
Copper, total [as Cu]2230
Manganese, total [as Mn]2230
Fluoride, total [as F]2200
Cadmium, total [as Cd]2200
Lead, total [as Pb]2190
Cyanide, total [as CN]2180
Sulfate, total [as SO4]2180
Silver, total [as Ag]2180
Oxygen, dissolved [DO]040
% Effect Static Chronic Arbacia punctulata030
Cyanide, free available010
Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia)010
NOAEL Static 48Hr Acute Cyprinodon variegatus010
Chromium, hexavalent [as Cr]100

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
September 8, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
September 8, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 27, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 26, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 19, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 15, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 28, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 27, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 26, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 24, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 20, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 16, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 16, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 15, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 15, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 15, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 13, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 10, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 7, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
July 1, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
June 29, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
June 24, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
June 17, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
June 16, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
June 16, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
May 16, 2026Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
May 12, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
May 5, 2026Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangermentEP6
April 28, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
April 14, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
February 18, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
February 9, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
January 28, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
January 26, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
January 12, 2026Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
December 17, 2025Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
November 17, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
November 10, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
November 4, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
October 26, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
September 25, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 26, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 12, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6
August 1, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentEP6

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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Nearby on the register

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

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