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NPDES MOGDS0023 · Clean Water Act

MAWC, GRANDE HIGHLAND ESTATES WWTP, Jefferson City, MO: NPDES MOGDS0023 discharge permit, effluent exceedances, inspections, penalties

MAWC, GRANDE HIGHLAND ESTATES WWTP, Jefferson City, Missouri: General permit coverage MOGDS0023, held by Missouri-American Water Company; Effective; issued July 1, 2024, term to June 30, 2029; discharges to Tributary to Moreau R..

7 of the 8 pollutants listed for NPDES MOGDS0023 have no violation or effluent exceedance.

  • Nitrogen, ammonia total [as N]: 8 limits, 2 violations of any kind, 2 effluent exceedances, latest March 31, 2026, largest 320% over the limit.
  • Oxygen, dissolved [DO]: 2 limits.
  • BOD, 5-day, 20 deg. C: 2 limits.
  • pH: 2 limits.
  • Solids, total suspended: 2 limits.
  • Flow, in conduit or thru treatment plant: 2 limits.
  • Chlorine, total residual: 2 limits.
  • E. coli: 2 limits.

Other permits held by Missouri-American Water Company

MAWC, GRANDE HIGHLAND ESTATES WWTP among its neighbors

52 discharge permits are in the Moreau River subwatershed (HUC 103001021207); MOGDS0023 is one. Its county: 236, 0 major; MOGDS0023 is minor permit.

Other permits in the Moreau River subwatershed (HUC 103001021207)

Identity

FacilityMAWC, GRANDE HIGHLAND ESTATES WWTP
PermitteeMissouri-American Water Company
NPDES IDMOGDS0023
StatusEffective
TypeGeneral permit coverage
ClassMinor
Facility typeNon-POTW
IssuedJuly 1, 2024
ExpiresJune 30, 2029
AddressJefferson City, MO 65101
Receiving waterTributary to Moreau R.
SubwatershedMoreau River (HUC 103001021207)

NPDES MOGDS0023: effluent limits and exceedances

MAWC, GRANDE HIGHLAND ESTATES WWTP (NPDES MOGDS0023): 8 pollutants on file, 8 limited; 1 with a violation of any kind, 1 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Nitrogen, ammonia total [as N]822March 31, 2026320% over the limit
Oxygen, dissolved [DO]200
BOD, 5-day, 20 deg. C200
pH200
Solids, total suspended200
Flow, in conduit or thru treatment plant200
Chlorine, total residual200
E. coli200

NPDES MOGDS0023: inspections, violations and enforcement

NPDES MOGDS0023 (MAWC, GRANDE HIGHLAND ESTATES WWTP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES MOGDS0023

NPDES MOGDS0023: 8 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.