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Clean Water Act discharge permit · NPDES IN0050679

SOUTH HARRISON PARK WASTEWATER TREATMENT PLANT, Laconia, IN: NPDES IN0050679 discharge permit, effluent exceedances, inspections, penalties

SOUTH HARRISON PARK WASTEWATER TREATMENT PLANT, held by SOUTH HARRISON PARK WWTP, holds NPDES permit IN0050679, which discharges to Ohio R/Mosquito Crk/Unnmd Trib. EPA’s file records it issued November 29, 2018 and expiring January 31, 2024.

SOUTH HARRISON PARK WASTEWATER TREATMENT PLANT, Laconia, Indiana: Individual permit IN0050679, held by SOUTH HARRISON PARK WWTP; Administratively continued (past its expiration date and still in force until reissued); issued November 29, 2018, term to January 31, 2024, by IDEM; discharges to OHIO R/MOSQUITO CRK/UNNMD TRIB.

  • E. coli, colony forming units [CFU]: 3 limits, 7 violations of any kind, 2 effluent exceedances, latest October 31, 2020, largest 929% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 2 limits, 7 violations of any kind, 1 effluent exceedance, latest April 30, 2015, largest 50% over the limit.
  • Flow, in conduit or thru treatment plant: 2 limits, 14 violations of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 4 limits, 10 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 10 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 2 limits, 10 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 2 limits, 10 violations of any kind, 0 effluent exceedances.
  • Flow, total: 1 limit, 5 violations of any kind, 0 effluent exceedances.
  • Streamflow: 1 limit, 4 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 0 limits, 4 violations of any kind, 0 effluent exceedances.
  • Dilution factor: 1 limit, 3 violations of any kind, 0 effluent exceedances.
  • Number of Events: 2 limits, 2 violations of any kind, 0 effluent exceedances.

SOUTH HARRISON PARK WASTEWATER TREATMENT PLANT among its neighbors

EPA’s permit file holds 1 discharge permits in the Mosquito Creek subwatershed (HUC 051401040101), IN0050679 among them. Its county holds 43, 2 of them major permits; IN0050679 is a minor permit.

Identity

Facility as filedSOUTH HARRISON PARK WASTEWATER TREATMENT PLANT
Permittee as filedSOUTH HARRISON PARK WWTP
NPDES IDIN0050679
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedNovember 29, 2018
Expiration dateJanuary 31, 2024
Issuing agencyIDEM
AddressLaconia, IN 47135
Receiving waterOHIO R/MOSQUITO CRK/UNNMD TRIB
SubwatershedMosquito Creek (HUC 051401040101)
SIC4952 – Sewerage Systems

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
E. coli, colony forming units [CFU]372October 31, 2020929% over the limit
BOD, carbonaceous [5 day, 20 C]271April 30, 201550% over the limit
Flow, in conduit or thru treatment plant2140
Nitrogen, ammonia total [as N]4100
pH2100
Solids, total suspended2100
Chlorine, total residual2100
Flow, total150
Streamflow140
BOD, 5-day, 20 deg. C040
Dilution factor130
Number of Events220

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0050679.

Inspections

EPA’s inspection file holds no inspection for NPDES IN0050679.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IN0050679.

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Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES IN0050679 for SOUTH HARRISON PARK WASTEWATER TREATMENT PLANT in Laconia, IN, which discharges to Ohio R/Mosquito Crk/Unnmd Trib within the Mosquito Creek subwatershed (HUC 051401040101). The permit is listed as a minor discharger, administratively continued, with 11 pollutants under a numeric limit and 2 pollutants with an effluent exceedance.