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NPDES PR0022781 · Clean Water Act

PRASA PONCE VIEJA WTP, Ponce, PR: NPDES PR0022781 discharge permit, effluent exceedances, inspections, penalties

PRASA PONCE VIEJA WTP, Ponce, Puerto Rico: Individual permit PR0022781, held by PRASA Ponce Vieja WTP; Administratively continued; issued November 17, 2017, term to January 31, 2023; discharges to PORTUQUES RIVER.

  • Phenolics, total recoverable: 0 limits, 78 violations of any kind, 68 effluent exceedances, latest July 31, 2010, largest 150,700% over the limit.
  • Chlorine, total residual: 1 limit, 72 violations of any kind, 56 effluent exceedances, latest September 30, 2018, largest 35,900% over the limit.
  • Arsenic, total [as As]: 2 limits, 59 violations of any kind, 47 effluent exceedances, latest July 31, 2010, largest 162,122% over the limit.
  • Copper, total [as Cu]: 2 limits, 62 violations of any kind, 45 effluent exceedances, latest October 31, 2010, largest 1,471% over the limit.
  • Oxygen, dissolved [DO]: 1 limit, 55 violations of any kind, 39 effluent exceedances, latest November 30, 2009, largest 68% over the limit.
  • Lead, total [as Pb]: 0 limits, 50 violations of any kind, 36 effluent exceedances, latest October 31, 2010, largest 1,376% over the limit.
  • Flow, in conduit or thru treatment plant: 2 limits, 48 violations of any kind, 32 effluent exceedances, latest June 30, 2012, largest 564% over the limit.
  • Turbidity: 2 limits, 42 violations of any kind, 26 effluent exceedances, latest October 31, 2010.
  • BOD, 5-day, 20 deg. C: 0 limits, 33 violations of any kind, 20 effluent exceedances, latest June 30, 2011, largest 99,999% over the limit.
  • Cyanide, total [as CN]: 0 limits, 32 violations of any kind, 17 effluent exceedances, latest May 31, 2016, largest 46,054% over the limit.
  • Sulfide, total [as S]: 0 limits, 18 violations of any kind, 8 effluent exceedances, latest September 30, 2009, largest 9,900% over the limit.
  • Mercury, total [as Hg]: 2 limits, 13 violations of any kind, 7 effluent exceedances, latest June 30, 2012, largest 41,567% over the limit.
  • Color [PT-CO units]: 1 limit, 20 violations of any kind, 4 effluent exceedances, latest January 31, 2019.
  • Zinc, total [as Zn]: 0 limits, 11 violations of any kind, 2 effluent exceedances, latest August 31, 1999, largest 1,355% over the limit.
  • Manganese, total [as Mn]: 0 limits, 6 violations of any kind, 1 effluent exceedance, latest September 30, 1999, largest 1,282% over the limit.
  • Sulfide-hydrogen sulfide [undissociated]: 0 limits, 5 violations of any kind, 1 effluent exceedance, latest February 28, 2017, largest 1,700% over the limit.
  • Phosphorus, total [as P]: 0 limits, 66 violations of any kind.
  • pH: 2 limits, 32 violations of any kind.
  • Coliform, fecal general: 0 limits, 22 violations of any kind.
  • Temperature, water deg. centigrade: 1 limit, 16 violations of any kind.
  • Solids, settleable: 1 limit, 16 violations of any kind.
  • Ammonia & ammonium- total: 1 limit, 14 violations of any kind.
  • Oil & Grease: 0 limits, 14 violations of any kind.
  • Fluoride, total [as F]: 0 limits, 11 violations of any kind.
  • Coliform, fecal - % samples exceeding limit: 0 limits, 10 violations of any kind.
  • Nitrogen, ammonia total [as N]: 0 limits, 8 violations of any kind.
  • Nitrogen, ammonia, total [as NH3]: 0 limits, 4 violations of any kind.
  • Whole Effluent Toxicity [WET] - P. promelas: 2 limits, 1 violation of any kind.
  • Whole Effluent Toxicity [WET] - D. magna: 2 limits, 1 violation of any kind.
  • 2-Methyl-4,6-dinitrophenol: 0 limits, 1 violation of any kind.
  • 2-Chlorophenol: 0 limits, 1 violation of any kind.
  • 2,4-Dichlorophenol: 0 limits, 1 violation of any kind.
  • 2,4-Dimethylphenol: 0 limits, 1 violation of any kind.
  • 2,4-Dinitrophenol: 0 limits, 1 violation of any kind.
  • 2,4,6-Trichlorophenol: 0 limits, 1 violation of any kind.
  • Pentachlorophenol: 0 limits, 1 violation of any kind.
  • March 11, 2026: Evaluation (E).

PRASA PONCE VIEJA WTP among its neighbors

2 discharge permits are in the Rio Portugues at Rio Bucana Channel subwatershed (HUC 210100040307); PR0022781 is one. Its county: 26, 2 major; PR0022781 is minor permit.

Other permits in the Rio Portugues at Rio Bucana Channel subwatershed (HUC 210100040307)

Identity

FacilityPRASA PONCE VIEJA WTP
PermitteePRASA Ponce Vieja WTP
NPDES IDPR0022781
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typeNon-POTW
IssuedNovember 17, 2017
ExpiresJanuary 31, 2023
AddressPonce, PR 00731
Receiving waterPORTUQUES RIVER
Receiving water impaired303(D) Listed
SubwatershedRio Portugues at Rio Bucana Channel (HUC 210100040307)

NPDES PR0022781: effluent limits and exceedances

PRASA PONCE VIEJA WTP (NPDES PR0022781): 36 pollutants on file, 14 limited; 36 with a violation of any kind, 16 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Phenolics, total recoverable07868July 31, 2010150,700% over the limit
Chlorine, total residual17256September 30, 201835,900% over the limit
Arsenic, total [as As]25947July 31, 2010162,122% over the limit
Copper, total [as Cu]26245October 31, 20101,471% over the limit
Oxygen, dissolved [DO]15539November 30, 200968% over the limit
Lead, total [as Pb]05036October 31, 20101,376% over the limit
Flow, in conduit or thru treatment plant24832June 30, 2012564% over the limit
Turbidity24226October 31, 2010
BOD, 5-day, 20 deg. C03320June 30, 201199,999% over the limit
Cyanide, total [as CN]03217May 31, 201646,054% over the limit
Sulfide, total [as S]0188September 30, 20099,900% over the limit
Mercury, total [as Hg]2137June 30, 201241,567% over the limit
Color [PT-CO units]1204January 31, 2019
Zinc, total [as Zn]0112August 31, 19991,355% over the limit
Manganese, total [as Mn]061September 30, 19991,282% over the limit
Sulfide-hydrogen sulfide [undissociated]051February 28, 20171,700% over the limit
Phosphorus, total [as P]0660
pH2320
Coliform, fecal general0220
Temperature, water deg. centigrade1160
Solids, settleable1160
Ammonia & ammonium- total1140
Oil & Grease0140
Fluoride, total [as F]0110
Coliform, fecal - % samples exceeding limit0100
Nitrogen, ammonia total [as N]080
Nitrogen, ammonia, total [as NH3]040
Whole Effluent Toxicity [WET] - P. promelas210
Whole Effluent Toxicity [WET] - D. magna210
2-Methyl-4,6-dinitrophenol010
2-Chlorophenol010
2,4-Dichlorophenol010
2,4-Dimethylphenol010
2,4-Dinitrophenol010
2,4,6-Trichlorophenol010
Pentachlorophenol010

NPDES PR0022781: inspections, violations and enforcement

NPDES PR0022781: 1 inspection

DateWhat EPA recordedAgency
March 11, 2026EvaluationE

NPDES PR0022781 (PRASA PONCE VIEJA WTP): no single-event violation, formal enforcement action and informal enforcement action on file.

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Permits near NPDES PR0022781

NPDES PR0022781: 36 pollutant rows, 1 dated events; ICIS-NPDES download, loaded September 15, 2026.