NATIONAL WATER INFRASTRUCTURE, LLC - OLE HOMESTEAD/KEYSTONE WWTP

NPDES ID: LA0126802

E — SNC: Effluent violation (monthly average limit)

The facility discharged more of a pollutant than its permit allows, based on a monthly average.

This quarter: 6 effluent violations.

Violations

May 31, 2026

Solids, total suspended

27% over limit

Discharged 19 mg/L against a permitted limit of 15 mg/L (MO AVG)

DMR, Limited - Numeric Violation

April 30, 2026

Solids, total suspended

30% over limit

Discharged 30 mg/L against a permitted limit of 23 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BOD, carbonaceous [5 day, 20 C]

30% over limit

Discharged 13 mg/L against a permitted limit of 10 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

166% over limit

Discharged 13.3 mg/L against a permitted limit of 5 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BOD, carbonaceous [5 day, 20 C]

107% over limit

Discharged 31 mg/L against a permitted limit of 15 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

110% over limit

Discharged 21 mg/L against a permitted limit of 10 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (4 days ago)