NESTLE PURINA PETCARE COMPANY

NPDES ID: MO0101788

E — SNC: Effluent violation (monthly average limit)

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

Violations

March 31, 2026

Nitrogen, ammonia total [as N]

657% over limit

Discharged 15.9 mg/L against a permitted limit of 2.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

184% over limit

Discharged 15.9 mg/L against a permitted limit of 5.6 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

February 28, 2026

pH

0% over limit

Discharged 9.3 SU against a permitted limit of 9 SU (MAXIMUM)

DMR, Limited - Numeric Violation

December 31, 2025

Solids, total suspended

59% over limit

Discharged 34.9 mg/L against a permitted limit of 22 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

190% over limit

Discharged 6.1 mg/L against a permitted limit of 2.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

6% over limit

Discharged 34.9 mg/L against a permitted limit of 33 mg/L (WKLY AVG)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

45% over limit

Discharged 8.1 mg/L against a permitted limit of 5.6 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

September 30, 2025

Nitrogen, ammonia total [as N]

62% over limit

Discharged 2.75 mg/L against a permitted limit of 1.7 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

198% over limit

Discharged 1.79 mg/L against a permitted limit of 0.6 mg/L (MO AVG)

DMR, Limited - Numeric Violation

June 30, 2025

Nitrogen, ammonia total [as N]

84% over limit

Discharged 3.12 mg/L against a permitted limit of 1.7 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Solids, total suspended

25% over limit

Discharged 27.4 mg/L against a permitted limit of 22 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

100% over limit

Discharged 1.2 mg/L against a permitted limit of 0.6 mg/L (MO AVG)

DMR, Limited - Numeric Violation

March 31, 2025

Solids, total suspended

20% over limit

Discharged 26.3 mg/L against a permitted limit of 22 mg/L (MO AVG)

DMR, Limited - Numeric Violation

January 31, 2025

Solids, total suspended

253% over limit

Discharged 282 mg/L against a permitted limit of 80 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

135% over limit

Discharged 282 mg/L against a permitted limit of 120 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

December 31, 2024

Solids, total suspended

48% over limit

Discharged 118 mg/L against a permitted limit of 80 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

18% over limit

Discharged 26 mg/L against a permitted limit of 22 mg/L (MO AVG)

DMR, Limited - Numeric Violation

October 31, 2024

Toxicity [acute], Pimephales promelas [Fathead Minnow]

0% over limit

Discharged 1 toxic against a permitted limit of 0 toxic (DAILY MX)

DMR, Monitor Only - Overdue

Toxicity [acute], Ceriodaphnia dubia

0% over limit

Discharged 1 toxic against a permitted limit of 0 toxic (DAILY MX)

DMR, Monitor Only - Overdue

September 30, 2024

Solids, total suspended

85% over limit

Discharged 148 mg/L against a permitted limit of 80 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

23% over limit

Discharged 148 mg/L against a permitted limit of 120 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

July 13, 2026 (24 days ago)