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NPDES AZ0024899 · Clean Water Act

ENTRADA DEL ORO, Gold Canyon, AZ: NPDES AZ0024899 discharge permit, effluent exceedances, inspections, penalties

ENTRADA DEL ORO, Gold Canyon, Arizona: Individual permit AZ0024899, held by Liberty Utilities (Entrada Del Oro Sewer Co) Corp.; Effective; issued January 25, 2013, term to January 24, 2018.

29 of the 39 pollutants listed for NPDES AZ0024899 have no violation or effluent exceedance.

  • Cyanide, total [as CN]: 20 limits, 10 violations of any kind, 10 effluent exceedances, latest June 30, 2016, largest 33% over the limit.
  • Selenium, total recoverable: 20 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2014, largest 100% over the limit.
  • Chromium, hexavalent dissolved [as Cr]: 20 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2015, largest 87% over the limit.
  • Mercury, total recoverable: 20 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2014, largest 1,900% over the limit.
  • Copper, total recoverable: 20 limits, 4 violations of any kind, 2 effluent exceedances, latest June 30, 2014, largest 285% over the limit.
  • E. coli, colony forming units [CFU]: 12 limits, 3 violations of any kind, 2 effluent exceedances, latest September 30, 2008, largest 320% over the limit.
  • BOD, 5-day, 20 deg. C: 26 limits, 3 violations of any kind, 1 effluent exceedance, latest November 30, 2015, largest 2% over the limit.
  • Solids, total suspended: 22 limits, 6 violations of any kind.
  • Chlorine, total residual: 24 limits, 2 violations of any kind.
  • Nitrogen, ammonia total [as N]: 16 limits, 2 violations of any kind.
  • pH: 24 limits.
  • Temperature, water deg. centigrade: 16 limits.
  • Oil & Grease: 16 limits.
  • Sulfide, total [as S]: 12 limits.
  • Hardness, total [as CaCO3]: 12 limits.
  • Arsenic, total recoverable: 12 limits.
  • Thallium, total recoverable: 12 limits.
  • Beryllium, total recoverable [as Be]: 12 limits.
  • Nickel, total recoverable: 12 limits.
  • Silver total recoverable: 12 limits.
  • Zinc, total recoverable: 12 limits.
  • Cadmium, total recoverable: 12 limits.
  • Lead, total recoverable: 12 limits.
  • Chromium, total recoverable: 12 limits.
  • Antimony, total recoverable: 12 limits.
  • Hydrogen sulfide: 12 limits.
  • Oxygen, dissolved [DO]: 8 limits.
  • Nitrogen, Kjeldahl, total [as N]: 8 limits.
  • Nitrite + Nitrate total [as N]: 8 limits.
  • Flow, in conduit or thru treatment plant: 8 limits.
  • TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum): 8 limits.
  • TU Static Renewal 7-Day Chronic Ceriodaphnia dubia: 8 limits.
  • TU Static Renewal 7-Day Chronic Pimphales promelas: 8 limits.
  • TU Static 7Day Chronic Ceriodaphnia dubia: 7 limits.
  • Phosphorus, total [as P]: 4 limits.
  • Solids, total dissolved: 4 limits.
  • BOD, 5-day, percent removal: 4 limits.
  • Solids, suspended percent removal: 4 limits.
  • Static 7Day Chronic Pimephales Promelas: 2 limits.

ENTRADA DEL ORO among its neighbors

29 discharge permits are in the Apache Land Tank subwatershed (HUC 150501000806); AZ0024899 is one. Its county: 77, 4 major; AZ0024899 is minor permit.

Other permits in the Apache Land Tank subwatershed (HUC 150501000806)

Identity

FacilityENTRADA DEL ORO
PermitteeLiberty Utilities (Entrada Del Oro Sewer Co) Corp.
NPDES IDAZ0024899
StatusEffective
TypeIndividual permit
ClassMinor
Facility typeNon-POTW
IssuedJanuary 25, 2013
ExpiresJanuary 24, 2018
AddressGold Canyon, AZ 85118
SubwatershedApache Land Tank (HUC 150501000806)

NPDES AZ0024899: effluent limits and exceedances

ENTRADA DEL ORO (NPDES AZ0024899): 39 pollutants on file, 39 limited; 10 with a violation of any kind, 7 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Cyanide, total [as CN]201010June 30, 201633% over the limit
Selenium, total recoverable2044June 30, 2014100% over the limit
Chromium, hexavalent dissolved [as Cr]2044June 30, 201587% over the limit
Mercury, total recoverable2044June 30, 20141,900% over the limit
Copper, total recoverable2042June 30, 2014285% over the limit
E. coli, colony forming units [CFU]1232September 30, 2008320% over the limit
BOD, 5-day, 20 deg. C2631November 30, 20152% over the limit
Solids, total suspended2260
Chlorine, total residual2420
Nitrogen, ammonia total [as N]1620
pH2400
Temperature, water deg. centigrade1600
Oil & Grease1600
Sulfide, total [as S]1200
Hardness, total [as CaCO3]1200
Arsenic, total recoverable1200
Thallium, total recoverable1200
Beryllium, total recoverable [as Be]1200
Nickel, total recoverable1200
Silver total recoverable1200
Zinc, total recoverable1200
Cadmium, total recoverable1200
Lead, total recoverable1200
Chromium, total recoverable1200
Antimony, total recoverable1200
Hydrogen sulfide1200
Oxygen, dissolved [DO]800
Nitrogen, Kjeldahl, total [as N]800
Nitrite + Nitrate total [as N]800
Flow, in conduit or thru treatment plant800
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)800
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia800
TU Static Renewal 7-Day Chronic Pimphales promelas800
TU Static 7Day Chronic Ceriodaphnia dubia700
Phosphorus, total [as P]400
Solids, total dissolved400
BOD, 5-day, percent removal400
Solids, suspended percent removal400
Static 7Day Chronic Pimephales Promelas200

NPDES AZ0024899: inspections, violations and enforcement

NPDES AZ0024899 (ENTRADA DEL ORO): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES AZ0024899

NPDES AZ0024899: 39 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.