STARKVILLE POTW
NPDES ID: MS0036145
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: 10 effluent violations, 2 reporting violations.
Violations
May 31, 2026
BOD, 5-day, 20 deg. C
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
304% over limit
Discharged 306.44999743 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
234% over limit
Discharged 379.54399681 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
140% over limit
Discharged 24 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
107% over limit
Discharged 31 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1050% over limit
Discharged 23 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1033% over limit
Discharged 34 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
40% over limit
Discharged 79 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
67% over limit
Discharged 75 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
22% over limit
Discharged 4.7 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
127% over limit
Discharged 34 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
326% over limit
Discharged 322.79399729 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
60% over limit
Discharged 76 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
967% over limit
Discharged 32 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
87% over limit
Discharged 72 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
302% over limit
Discharged 455.81599617 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
130% over limit
Discharged 23 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 % against a permitted limit of 100 % (MINIMUM)
DMR, Limited - Overdue
IC25 Static Renewal 7 Day Chronic Chrpimephales
0% over limit
Discharged 0 % against a permitted limit of 100 % (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
900% over limit
Discharged 20 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
350% over limit
Discharged 511.2039957 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
60% over limit
Discharged 607.4519949 kg/d against a permitted limit of 378.636 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
32% over limit
Discharged 748.19199371 kg/d against a permitted limit of 568.408 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
200% over limit
Discharged 30 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
39% over limit
Discharged 175 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
430% over limit
Discharged 401.78999662 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
147% over limit
Discharged 63 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
950% over limit
Discharged 21 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
900% over limit
Discharged 30 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
147% over limit
Discharged 63 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
113% over limit
Discharged 32 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
234% over limit
Discharged 379.54399681 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (MX WK AV)
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
Nitrogen, ammonia total [as N]
108% over limit
Discharged 157.99199867 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
200% over limit
Discharged 6 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
433% over limit
Discharged 16 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
207% over limit
Discharged 54 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2025
E. coli
52% over limit
Discharged 191 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
53% over limit
Discharged 23 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
367% over limit
Discharged 14 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
34% over limit
Discharged 101.69599915 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
70% over limit
Discharged 17 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 226.99999809 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
150% over limit
Discharged 5 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
312% over limit
Discharged 468.07399607 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MINIMUM)
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 (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1250% over limit
Discharged 27 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
414% over limit
Discharged 389.98599672 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1000% over limit
Discharged 33 mg/L against a permitted limit of 3 mg/L (MX WK AV)
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
October 31, 2025
BOD, 5-day, percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
291% over limit
Discharged 443.55799627 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
444% over limit
Discharged 412.68599653 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1400% over limit
Discharged 30 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
70% over limit
Discharged 17 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1067% over limit
Discharged 35 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, 5-day, 20 deg. C
80% over limit
Discharged 18 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
489% over limit
Discharged 446.28199625 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1500% over limit
Discharged 32 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.016 mg/L (MX WK AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
27% over limit
Discharged 19 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1000% over limit
Discharged 33 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
320% over limit
Discharged 477.15399599 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2025
BOD, 5-day, percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
80% over limit
Discharged 18 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1100% over limit
Discharged 24 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
363% over limit
Discharged 350.94199705 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
271% over limit
Discharged 420.85799646 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
833% over limit
Discharged 28 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
53% over limit
Discharged 23 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
191% over limit
Discharged 220.64399815 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
650% over limit
Discharged 15 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
146% over limit
Discharged 279.66399765 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
567% over limit
Discharged 20 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, suspended percent removal
420% over limit
Discharged 22 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, suspended percent removal
87% over limit
Discharged 72 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, 5-day, percent removal
40% over limit
Discharged 79 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, suspended percent removal
447% over limit
Discharged 18 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, suspended percent removal
413% over limit
Discharged 23 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
150% over limit
Discharged 283.74999762 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
53% over limit
Discharged 23 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
122% over limit
Discharged 168.43399858 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
600% over limit
Discharged 21 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
450% over limit
Discharged 11 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 15 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
48% over limit
Discharged 3.1 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 57 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
66% over limit
Discharged 125.75799894 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
433% over limit
Discharged 16 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
400% over limit
Discharged 10 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
86% over limit
Discharged 211.56399822 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2024
BOD, 5-day, percent removal
33% over limit
Discharged 80 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
227% over limit
Discharged 247.70239792 kg/d against a permitted limit of 75.818 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
67% over limit
Discharged 75 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
80% over limit
Discharged 18 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
73% over limit
Discharged 26 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
695% over limit
Discharged 15.9 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
301% over limit
Discharged 454.81719618 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
967% over limit
Discharged 32 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
100% over limit
Discharged 4 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
267% over limit
Discharged 11 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
32% over limit
Discharged 149.36599874 kg/d against a permitted limit of 113.5 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2024
Nitrogen, ammonia total [as N]
167% over limit
Discharged 8 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
50% over limit
Discharged 3 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)