ST JOE - SPENCERVILLE RSD
NPDES ID: IN0058441
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: 9 effluent violations, 1 single-event violation.
Violations
May 31, 2026
E. coli, colony forming units [CFU]
930% over limit
Discharged 2420 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
E. coli, colony forming units [CFU]
309% over limit
Discharged 961 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
16% over limit
Discharged 19 mg/L against a permitted limit of 16.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 22.69999981 kg/d against a permitted limit of 19.52199984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
23% over limit
Discharged 8.6 mg/L against a permitted limit of 7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
220% over limit
Discharged 144.1 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
155% over limit
Discharged 76.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
118% over limit
Discharged 63.33299947 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
March 31, 2026
Zinc, total recoverable
6% over limit
Discharged 0.57 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
482% over limit
Discharged 174.6 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
101% over limit
Discharged 39.31639967 kg/d against a permitted limit of 19.52199984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
163% over limit
Discharged 76.49899936 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 19.4 mg/L against a permitted limit of 16.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
4% over limit
Discharged 0.28 mg/L against a permitted limit of 0.27 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
99% over limit
Discharged 13.9 mg/L against a permitted limit of 7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
754% over limit
Discharged 384.5 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
637% over limit
Discharged 221.1 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
243% over limit
Discharged 99.74379916 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
123% over limit
Discharged 43.53859963 kg/d against a permitted limit of 19.52199984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
176% over limit
Discharged 19.3 mg/L against a permitted limit of 7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1054% over limit
Discharged 519.5 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
59% over limit
Discharged 26 mg/L against a permitted limit of 16.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
48% over limit
Discharged 0.8 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
86% over limit
Discharged 83.5 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 26.3 mg/L against a permitted limit of 16.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
70% over limit
Discharged 51.1 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Zinc, total recoverable
74% over limit
Discharged 0.94 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
1269% over limit
Discharged 616 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
237% over limit
Discharged 97.97319918 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
354% over limit
Discharged 136.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
33% over limit
Discharged 0.36 mg/L against a permitted limit of 0.27 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
24% over limit
Discharged 24.2435998 kg/d against a permitted limit of 19.52199984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Zinc, total recoverable
11% over limit
Discharged 0.6 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
125% over limit
Discharged 67.4 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
12% over limit
Discharged 32.64259973 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
327% over limit
Discharged 192 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2025
E. coli, colony forming units [CFU]
5020% over limit
Discharged 12033 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
72% over limit
Discharged 33.59599972 kg/d against a permitted limit of 19.52199984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
67% over limit
Discharged 48.57799959 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
90% over limit
Discharged 237 MPN/100mL against a permitted limit of 125 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
Zinc, total recoverable
141% over limit
Discharged 0.65 mg/L against a permitted limit of 0.27 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
540% over limit
Discharged 192 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
196% over limit
Discharged 1.6 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
467% over limit
Discharged 255 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2025
Zinc, total recoverable
122% over limit
Discharged 1.2 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
51% over limit
Discharged 43.81099963 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
4072% over limit
Discharged 9804 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
177% over limit
Discharged 83.1 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
326% over limit
Discharged 191.5 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2025
E. coli, colony forming units [CFU]
31% over limit
Discharged 307.6 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
111% over limit
Discharged 0.3632 kg/d against a permitted limit of 0.17252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
1585% over limit
Discharged 9.1 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
381% over limit
Discharged 1.3 mg/L against a permitted limit of 0.27 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1614% over limit
Discharged 498.03799582 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Zinc, total recoverable
627% over limit
Discharged 2.54239998 kg/d against a permitted limit of 0.34958 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
582% over limit
Discharged 133.15819888 kg/d against a permitted limit of 19.52199984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1538% over limit
Discharged 491.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3893% over limit
Discharged 1797 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
117% over limit
Discharged 97.7 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
133% over limit
Discharged 547.5 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
5% over limit
Discharged 31.4 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Toxicity [chronic], Ceriodaphnia dubia
114% over limit
Discharged 55.6 toxic against a permitted limit of 26 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
April 30, 2025
E. coli, colony forming units [CFU]
930% over limit
Discharged 2420 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 52.4 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
40% over limit
Discharged 175 MPN/100mL against a permitted limit of 125 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 33.4 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 23.5 mg/L against a permitted limit of 16.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3% over limit
Discharged 7.2 mg/L against a permitted limit of 7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
48% over limit
Discharged 66.6 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
68% over limit
Discharged 50.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
173% over limit
Discharged 123 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
5% over limit
Discharged 30.64499974 kg/d against a permitted limit of 29.05599976 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
55% over limit
Discharged 46.4 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
87% over limit
Discharged 84.1 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2024
Solids, total suspended
6% over limit
Discharged 47.8 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)