MAGNOLIA WATER UTILITY OPERATING CO., LLC- HIGHLAND LAKES
NPDES ID: LAG570483
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: 1 compliance schedule violation.
Violations
March 31, 2026
Solids, total suspended
207% over limit
Discharged 46 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
143% over limit
Discharged 56 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
60% over limit
Discharged 16 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27% over limit
Discharged 19 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, 20 deg. C
260% over limit
Discharged 36 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
227% over limit
Discharged 49 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
296% over limit
Discharged 91 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
320% over limit
Discharged 63 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, 5-day, 20 deg. C
120% over limit
Discharged 22 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
127% over limit
Discharged 34 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
87% over limit
Discharged 43 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
100% over limit
Discharged 30 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Coliform, fecal general
360% over limit
Discharged 1840 MPN/100mL against a permitted limit of 400 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
213% over limit
Discharged 47 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
104% over limit
Discharged 47 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
380% over limit
Discharged 72 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
213% over limit
Discharged 72 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
BOD, 5-day, 20 deg. C
200% over limit
Discharged 45 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
217% over limit
Discharged 73 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
387% over limit
Discharged 73 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
350% over limit
Discharged 45 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
187% over limit
Discharged 66 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
340% over limit
Discharged 66 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Coliform, fecal general
25% over limit
Discharged 500 MPN/100mL against a permitted limit of 400 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
840% over limit
Discharged 94 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
150% over limit
Discharged 500 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
226% over limit
Discharged 75 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
400% over limit
Discharged 75 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
527% over limit
Discharged 94 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, 5-day, 20 deg. C
67% over limit
Discharged 25 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
150% over limit
Discharged 25 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 20 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 400 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 10 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 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)