CASTON EDUCATIONAL CENTER
NPDES ID: IN0031798
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: 15 effluent violations.
Violations
June 30, 2026
Solids, total suspended
335% over limit
Discharged 78.24 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
1% over limit
Discharged 15.2 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
315% over limit
Discharged 112 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
18% over limit
Discharged 27.1 mg/L against a permitted limit of 23 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2026
Solids, total suspended
282% over limit
Discharged 68.7 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
195% over limit
Discharged 79.6 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Chlorine, total residual
67% over limit
Discharged 0.1 mg/L against a permitted limit of 0.06 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Chlorine, total residual
0% over limit
Discharged 0.06 mg/L against a permitted limit of 0.06 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 43.04 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
385% over limit
Discharged 20.71601983 kg/d against a permitted limit of 4.26759996 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 57.2 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
41% over limit
Discharged 5.31179996 kg/d against a permitted limit of 3.76819997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
20% over limit
Discharged 4 mg/L against a permitted limit of 5 mg/L (DLYAVMIN)
DMR, Limited - Numeric Violation
Chlorine, total residual
117% over limit
Discharged 0.13 mg/L against a permitted limit of 0.06 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
72% over limit
Discharged 4.92135996 kg/d against a permitted limit of 2.86019998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
7% over limit
Discharged 28.8 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2025
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 25.4 mg/L against a permitted limit of 23 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
61% over limit
Discharged 43.6 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 27.6 mg/L against a permitted limit of 23 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2024
Chlorine, total residual
96% over limit
Discharged 0.02 mg/L against a permitted limit of 0.5 mg/L (DAILY MN)
DMR, Limited - Overdue
Chlorine, total residual
96% over limit
Discharged 0.02 mg/L against a permitted limit of 0.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Chlorine, total residual
200% over limit
Discharged 0.18 mg/L against a permitted limit of 0.06 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
3% over limit
Discharged 5.8 mg/L against a permitted limit of 6 mg/L (DLYAVMIN)
DMR, Limited - Numeric Violation
Chlorine, total residual
78% over limit
Discharged 0.107 mg/L against a permitted limit of 0.06 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (10 hours ago)