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NPDES IL0053651 · Clean Water Act

UNITED SCHOOL DISTRICT #304 SOUTH CAMPUS STP, Monmouth, IL: NPDES IL0053651 discharge permit, effluent exceedances, inspections, penalties

UNITED SCHOOL DISTRICT #304 SOUTH CAMPUS STP, Monmouth, Illinois: Individual permit IL0053651, held by UNITED SCHOOL DISTRICT #304; Biosolids; Administratively continued; issued November 14, 2019, term to October 31, 2024; discharges to UNNAMED TRIB TO CEDAR CREEK.

  • Nitrogen, ammonia total [as N]: 22 limits, 439 violations of any kind, 315 effluent exceedances, latest April 30, 2026, largest 5,400% over the limit.
  • Solids, total suspended: 5 limits, 267 violations of any kind, 153 effluent exceedances, latest March 31, 2026, largest 14,900% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 4 limits, 175 violations of any kind, 91 effluent exceedances, latest April 30, 2026, largest 820% over the limit.
  • Chlorine, total residual: 1 limit, 120 violations of any kind, 91 effluent exceedances, latest November 30, 2012, largest 2,700% over the limit.
  • Oxygen, dissolved [DO]: 5 limits, 60 violations of any kind, 28 effluent exceedances, latest April 30, 2026, largest 82% over the limit.
  • Coliform, fecal general: 1 limit, 16 violations of any kind, 4 effluent exceedances, latest May 31, 2014, largest 99,999% over the limit.
  • Flow, in conduit or thru treatment plant: 4 limits, 105 violations of any kind.
  • pH: 2 limits, 52 violations of any kind.
  • BOD, 5-day, 20 deg. C: 1 limit, 26 violations of any kind.
  • March 31, 2025: Management Practice Violations - Improper Operation and Maintenance (ST6).
  • March 31, 2025: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
  • March 31, 2025: Permit Violations - Discharge Without a Valid Permit (ST6).
  • March 31, 2025: Management Practice Violations - No Licensed/Certified Operator (ST6).
  • March 31, 2025: Management Practice Violations - Failure to Maintain Records (ST6).
  • March 31, 2025: Monitoring Violations - No Flow Measurement Device (ST6).

Illinois holds 54 Biosolids coverages of this permit type in EPA’s file; 44 were issued before IL0053651.

Coverages issued nearest IL0053651

UNITED SCHOOL DISTRICT #304 SOUTH CAMPUS STP among its neighbors

23 discharge permits are in the Headwaters Cedar Creek subwatershed (HUC 070801040801); IL0053651 is one. Its county: 18, 1 major; IL0053651 is minor permit.

Other permits in the Headwaters Cedar Creek subwatershed (HUC 070801040801)

Identity

FacilityUNITED SCHOOL DISTRICT #304 SOUTH CAMPUS STP
PermitteeUNITED SCHOOL DISTRICT #304
NPDES IDIL0053651
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typeNon-POTW
ProgramBiosolids
IssuedNovember 14, 2019
ExpiresOctober 31, 2024
AddressMonmouth, IL 61462
Receiving waterUNNAMED TRIB TO CEDAR CREEK
SubwatershedHeadwaters Cedar Creek (HUC 070801040801)
SIC8211 – Elementary And Secondary Schools

NPDES IL0053651: effluent limits and exceedances

UNITED SCHOOL DISTRICT #304 SOUTH CAMPUS STP (NPDES IL0053651): 9 pollutants on file, 9 limited; 9 with a violation of any kind, 6 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Nitrogen, ammonia total [as N]22439315April 30, 20265,400% over the limit
Solids, total suspended5267153March 31, 202614,900% over the limit
BOD, carbonaceous [5 day, 20 C]417591April 30, 2026820% over the limit
Chlorine, total residual112091November 30, 20122,700% over the limit
Oxygen, dissolved [DO]56028April 30, 202682% over the limit
Coliform, fecal general1164May 31, 201499,999% over the limit
Flow, in conduit or thru treatment plant41050
pH2520
BOD, 5-day, 20 deg. C1260

NPDES IL0053651: inspections, violations and enforcement

NPDES IL0053651: 6 single-event violations

DateWhat EPA recordedAgency
March 31, 2025Management Practice Violations - Improper Operation and MaintenanceST6
March 31, 2025Monitoring Violations - Invalid/Unrepresentative SampleST6
March 31, 2025Permit Violations - Discharge Without a Valid PermitST6
March 31, 2025Management Practice Violations - No Licensed/Certified OperatorST6
March 31, 2025Management Practice Violations - Failure to Maintain RecordsST6
March 31, 2025Monitoring Violations - No Flow Measurement DeviceST6

NPDES IL0053651 (UNITED SCHOOL DISTRICT #304 SOUTH CAMPUS STP): no inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES IL0053651

NPDES IL0053651: 9 pollutant rows, 6 dated events; ICIS-NPDES download, loaded October 14, 2026.