SPEEDWAY WWTP
NPDES ID: IN0032972
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: 8 effluent violations.
Violations
June 30, 2026
Solids, total suspended
10% over limit
Discharged 25.3 mg/L against a permitted limit of 23 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
32% over limit
Discharged 19.8 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
22% over limit
Discharged 2.8 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
9% over limit
Discharged 54.93399954 kg/d against a permitted limit of 50.39399958 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
125% over limit
Discharged 5.17 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
58% over limit
Discharged 2.37 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
62% over limit
Discharged 125.75799894 kg/d against a permitted limit of 77.63399935 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
13% over limit
Discharged 20.3 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
28% over limit
Discharged 34.5 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
10% over limit
Discharged 29.8 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 25.2 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
33% over limit
Discharged 35.9 mg/L against a permitted limit of 27 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 21.9 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
17% over limit
Discharged 24.6 mg/L against a permitted limit of 21 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7% over limit
Discharged 2.57 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
27% over limit
Discharged 1.9 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
35% over limit
Discharged 3.1 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
20% over limit
Discharged 1.8 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
23% over limit
Discharged 2.82 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
7% over limit
Discharged 1.6 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 23.8 mg/L against a permitted limit of 23 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
7% over limit
Discharged 1.07 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
5% over limit
Discharged 15.8 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
11% over limit
Discharged 86.03299928 kg/d against a permitted limit of 77.63399935 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
41% over limit
Discharged 2.11 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
113% over limit
Discharged 4.89 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
70% over limit
Discharged 2.55 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
198% over limit
Discharged 6.86 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3% over limit
Discharged 51.75599957 kg/d against a permitted limit of 50.39399958 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
85% over limit
Discharged 143.91799879 kg/d against a permitted limit of 77.63399935 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 16.7 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
28% over limit
Discharged 3.08 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
12% over limit
Discharged 20.2 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Phosphorus, total [as P]
17% over limit
Discharged 1.17 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
4% over limit
Discharged 1.66 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7% over limit
Discharged 2.57 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, ammonia total [as N]
158% over limit
Discharged 6.186 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
16% over limit
Discharged 62.65199947 kg/d against a permitted limit of 54.02599955 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
21% over limit
Discharged 97.75527918 kg/d against a permitted limit of 80.81199932 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
150% over limit
Discharged 3.998 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
pH
0% over limit
Discharged 9.1 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
15% over limit
Discharged 2.77 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
November 30, 2024
Toxicity [acute], Pimephales promelas [Fathead Minnow]
120% over limit
Discharged 2.2 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
300% over limit
Discharged 4.4 toxic against a permitted limit of 1.1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
October 31, 2024
Phosphorus, total [as P]
116% over limit
Discharged 2.158 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli, colony forming units [CFU]
745% over limit
Discharged 1986 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
66% over limit
Discharged 1.662 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
22% over limit
Discharged 153 MPN/100mL against a permitted limit of 125 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
August 31, 2024
Solids, total suspended
57% over limit
Discharged 23.5 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
37% over limit
Discharged 2.06 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
64% over limit
Discharged 1.64 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
209% over limit
Discharged 727 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
60% over limit
Discharged 36.9 mg/L against a permitted limit of 23 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
17% over limit
Discharged 2.68 mg/L against a permitted limit of 2.3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (4 hours ago)