SHANGRI LA MHP STP
NPDES ID: ILG551057
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: 3 effluent violations.
Violations
June 30, 2026
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 26.7 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
34% over limit
Discharged 53.4 mg/L against a permitted limit of 40 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
105% over limit
Discharged 51.2 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
54% over limit
Discharged 38.6 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
31% over limit
Discharged 32.8 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
12% over limit
Discharged 41.4 mg/L against a permitted limit of 37 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 27.6 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, carbonaceous [5 day, 20 C]
67% over limit
Discharged 41.8 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 42.1 mg/L against a permitted limit of 40 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, carbonaceous [5 day, 20 C]
69% over limit
Discharged 42.2 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
9% over limit
Discharged 43.5 mg/L against a permitted limit of 40 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2024
BOD, carbonaceous [5 day, 20 C]
38% over limit
Discharged 34.4 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, carbonaceous [5 day, 20 C]
77% over limit
Discharged 70.8 mg/L against a permitted limit of 40 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
171% over limit
Discharged 67.8 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 26.2 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
BOD, carbonaceous [5 day, 20 C]
4% over limit
Discharged 25.9 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)