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NPDES PR0023396 · Clean Water Act

MUNICIPAL PUBLIC WORKS, Mayaguez, PR: NPDES PR0023396 discharge permit, effluent exceedances, inspections, penalties

MUNICIPAL PUBLIC WORKS, Mayaguez, Puerto Rico: Individual permit PR0023396, held by MAYAGUEZ MUN GOVT-PUB WORKS CT; Administratively continued; issued May 2, 2007, term to July 31, 2012; discharges to QB DE LOS MUERTS.

  • BOD, 5-day, percent removal: 1 limit, 100 violations of any kind, 50 effluent exceedances, latest November 30, 2023, largest 99,999% over the limit.
  • Solids, suspended percent removal: 1 limit, 100 violations of any kind, 50 effluent exceedances, latest November 30, 2023, largest 99,999% over the limit.
  • Fluoride, total [as F]: 1 limit, 71 violations of any kind, 45 effluent exceedances, latest October 31, 2019, largest 51,043% over the limit.
  • Surfactants [MBAS]: 1 limit, 92 violations of any kind, 38 effluent exceedances, latest September 30, 2023, largest 90,900% over the limit.
  • Flow, in conduit or thru treatment plant: 1 limit, 108 violations of any kind, 34 effluent exceedances, latest June 30, 2019, largest 713% over the limit.
  • Nitrite + Nitrate total [as N]: 1 limit, 57 violations of any kind, 34 effluent exceedances, latest September 30, 2020, largest 106,110% over the limit.
  • Coliform, fecal general: 1 limit, 53 violations of any kind, 27 effluent exceedances, latest October 31, 2019, largest 99,999% over the limit.
  • Oxygen, dissolved [DO]: 1 limit, 74 violations of any kind, 24 effluent exceedances, latest September 30, 2022, largest 99,999% over the limit.
  • Coliform, total general: 1 limit, 39 violations of any kind, 16 effluent exceedances, latest September 30, 2020, largest 99,999% over the limit.
  • Nitrogen, total [as N]: 0 limits, 40 violations of any kind, 12 effluent exceedances, latest November 30, 2023, largest 529% over the limit.
  • Sulfide, total [as S]: 1 limit, 34 violations of any kind, 11 effluent exceedances, latest February 29, 2020, largest 410,900% over the limit.
  • Coliform, fecal - % samples exceeding limit: 1 limit, 32 violations of any kind, 10 effluent exceedances, latest October 31, 2019, largest 400% over the limit.
  • BOD, 5-day, 20 deg. C: 2 limits, 169 violations of any kind, 8 effluent exceedances, latest May 31, 2018, largest 100% over the limit.
  • Solids, total suspended: 2 limits, 159 violations of any kind, 5 effluent exceedances, latest July 31, 2022, largest 297% over the limit.
  • Solids, total dissolved: 0 limits, 33 violations of any kind, 5 effluent exceedances, latest October 31, 2022, largest 107% over the limit.
  • Oil & Grease: 1 limit, 55 violations of any kind, 4 effluent exceedances, latest April 30, 2001, largest 16,450% over the limit.
  • Color [PT-CO units]: 1 limit, 38 violations of any kind, 4 effluent exceedances, latest June 30, 2023.
  • Phosphorus, total [as P]: 0 limits, 33 violations of any kind, 4 effluent exceedances, latest November 30, 2023, largest 731% over the limit.
  • Solids, total dissolved- 180 deg. C: 1 limit, 27 violations of any kind, 4 effluent exceedances, latest April 30, 2019, largest 83% over the limit.
  • Enterococci: 0 limits, 34 violations of any kind, 3 effluent exceedances, latest May 31, 2022, largest 375% over the limit.
  • Temperature, water deg. centigrade: 1 limit, 52 violations of any kind, 2 effluent exceedances, latest October 31, 2002, largest 9% over the limit.
  • Turbidity: 1 limit, 36 violations of any kind, 2 effluent exceedances, latest December 31, 2006.
  • pH: 2 limits, 100 violations of any kind.
  • Chlorine, total residual: 1 limit, 51 violations of any kind.
  • Solids, settleable: 1 limit, 50 violations of any kind.
  • Ammonia & ammonium- total: 0 limits, 31 violations of any kind.
  • Ammonia nitrogen, total, [as N] 30 day: 1 limit, 22 violations of any kind.
  • Sulfide-hydrogen sulfide [undissociated]: 0 limits, 11 violations of any kind.
  • Whole Effluent Toxicity [WET] - P. promelas: 0 limits, 3 violations of any kind.
  • Whole Effluent Toxicity [WET] - D. magna: 0 limits, 3 violations of any kind.
  • Chloride [as Cl]: 0 limits, 1 violation of any kind.

Other permits held by MAYAGUEZ MUN GOVT-PUB WORKS CT

MUNICIPAL PUBLIC WORKS among its neighbors

17 discharge permits are in the Rio Caguitas subwatershed (HUC 210100050404); PR0023396 is one. Its county: 14, 3 major; PR0023396 is minor permit.

Other permits in the Rio Caguitas subwatershed (HUC 210100050404)

Identity

FacilityMUNICIPAL PUBLIC WORKS
PermitteeMAYAGUEZ MUN GOVT-PUB WORKS CT
NPDES IDPR0023396
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typeNon-POTW
IssuedMay 2, 2007
ExpiresJuly 31, 2012
AddressMayaguez, PR 00708
Receiving waterQB DE LOS MUERTS
Receiving water impaired303(D) Listed
SubwatershedRio Caguitas (HUC 210100050404)
SIC9111 – Executive Offices

NPDES PR0023396: effluent limits and exceedances

MUNICIPAL PUBLIC WORKS (NPDES PR0023396): 31 pollutants on file, 22 limited; 31 with a violation of any kind, 22 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
BOD, 5-day, percent removal110050November 30, 202399,999% over the limit
Solids, suspended percent removal110050November 30, 202399,999% over the limit
Fluoride, total [as F]17145October 31, 201951,043% over the limit
Surfactants [MBAS]19238September 30, 202390,900% over the limit
Flow, in conduit or thru treatment plant110834June 30, 2019713% over the limit
Nitrite + Nitrate total [as N]15734September 30, 2020106,110% over the limit
Coliform, fecal general15327October 31, 201999,999% over the limit
Oxygen, dissolved [DO]17424September 30, 202299,999% over the limit
Coliform, total general13916September 30, 202099,999% over the limit
Nitrogen, total [as N]04012November 30, 2023529% over the limit
Sulfide, total [as S]13411February 29, 2020410,900% over the limit
Coliform, fecal - % samples exceeding limit13210October 31, 2019400% over the limit
BOD, 5-day, 20 deg. C21698May 31, 2018100% over the limit
Solids, total suspended21595July 31, 2022297% over the limit
Solids, total dissolved0335October 31, 2022107% over the limit
Oil & Grease1554April 30, 200116,450% over the limit
Color [PT-CO units]1384June 30, 2023
Phosphorus, total [as P]0334November 30, 2023731% over the limit
Solids, total dissolved- 180 deg. C1274April 30, 201983% over the limit
Enterococci0343May 31, 2022375% over the limit
Temperature, water deg. centigrade1522October 31, 20029% over the limit
Turbidity1362December 31, 2006
pH21000
Chlorine, total residual1510
Solids, settleable1500
Ammonia & ammonium- total0310
Ammonia nitrogen, total, [as N] 30 day1220
Sulfide-hydrogen sulfide [undissociated]0110
Whole Effluent Toxicity [WET] - P. promelas030
Whole Effluent Toxicity [WET] - D. magna030
Chloride [as Cl]010

NPDES PR0023396: inspections, violations and enforcement

NPDES PR0023396 (MUNICIPAL PUBLIC WORKS): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES PR0023396

NPDES PR0023396: 31 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.