SHAWSWICK ELEMENTARY & JR HIGH SCHOOL
NPDES ID: IN0054364
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: 4 effluent violations.
Violations
April 30, 2026
Nitrogen, ammonia total [as N]
54% over limit
Discharged 3.7 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 47 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
60% over limit
Discharged 2.562 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
28% over limit
Discharged 300 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
10% over limit
Discharged 0.039952 kg/d against a permitted limit of 0.03632 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
13% over limit
Discharged 1.8 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
72% over limit
Discharged 1.79783998 kg/d against a permitted limit of 1.04419999 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
14% over limit
Discharged 34.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
508% over limit
Discharged 14.6 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
279% over limit
Discharged 0.137562 kg/d against a permitted limit of 0.03632 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
404% over limit
Discharged 0.27467 kg/d against a permitted limit of 0.05448 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
109% over limit
Discharged 94 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
350% over limit
Discharged 7.192 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
63% over limit
Discharged 3.92 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
41% over limit
Discharged 0.076726 kg/d against a permitted limit of 0.05448 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
14% over limit
Discharged 34.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
31% over limit
Discharged 0.88983999 kg/d against a permitted limit of 0.68099999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 63 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
17% over limit
Discharged 1.22579999 kg/d against a permitted limit of 1.04419999 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
133% over limit
Discharged 0.12712 kg/d against a permitted limit of 0.05448 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
9% over limit
Discharged 49 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
185% over limit
Discharged 6.85 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
85% over limit
Discharged 0.067192 kg/d against a permitted limit of 0.03632 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
144% over limit
Discharged 3.9 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
36% over limit
Discharged 24.5 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
44% over limit
Discharged 39 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.00233 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)