RICE HILL LAGOON EAST, LLC
NPDES ID: OR0029564
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
April 30, 2026
pH
0% over limit
Discharged 6.3 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
30% over limit
Discharged 2.23821998 kg/d against a permitted limit of 1.72519999 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
97% over limit
Discharged 2.23821998 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
3% over limit
Discharged 3.93163997 kg/d against a permitted limit of 3.81359997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 2.04299998 kg/d against a permitted limit of 1.90679998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
37% over limit
Discharged 3.93163997 kg/d against a permitted limit of 2.86019998 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
51% over limit
Discharged 1.71611999 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
107% over limit
Discharged 69 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
73% over limit
Discharged 2.99185997 kg/d against a permitted limit of 1.72519999 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
32% over limit
Discharged 2.99185997 kg/d against a permitted limit of 2.26999998 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, 20 deg. C
5% over limit
Discharged 1.81599998 kg/d against a permitted limit of 1.72519999 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
60% over limit
Discharged 1.81599998 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.6 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
5% over limit
Discharged 1.99759998 kg/d against a permitted limit of 1.90679998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
E. coli
20% over limit
Discharged 488 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
27% over limit
Discharged 160.6 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
18% over limit
Discharged 1.33475999 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 50 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 75 mg/L (WKLY AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEO)
DMR, Limited - Overdue
Solids, suspended percent removal
0% over limit
Discharged 0 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 2.86019998 kg/d (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 1.72519999 kg/d (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 3.81359997 kg/d (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 2.26999998 kg/d (DAILY MX)
DMR, Limited - Overdue
Alkalinity, total [as CaCO3]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 1.90679998 kg/d (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
April 30, 2025
BOD, 5-day, 20 deg. C
26% over limit
Discharged 2.17919998 kg/d against a permitted limit of 1.72519999 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
92% over limit
Discharged 2.17919998 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Numeric Violation
January 31, 2025
pH
0% over limit
Discharged 6.3 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
93% over limit
Discharged 71 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
51% over limit
Discharged 47 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
November 30, 2024
BOD, 5-day, percent removal
80% over limit
Discharged 73 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
506% over limit
Discharged -112 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)