BASSWOOD RESORT WWTP
NPDES ID: MO0109819
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: 14 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
6793% over limit
Discharged 96.5 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1764% over limit
Discharged 19200 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
9220% over limit
Discharged 19200 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 43 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2581% over limit
Discharged 96.5 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
137% over limit
Discharged 71 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
58% over limit
Discharged 71 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, 5-day, 20 deg. C
90% over limit
Discharged 57 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27% over limit
Discharged 57 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2353% over limit
Discharged 88.3 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
6186% over limit
Discharged 88 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1075% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
31% over limit
Discharged 59 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
97% over limit
Discharged 59 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
543% over limit
Discharged 48.2 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1908% over limit
Discharged 48.2 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, 20 deg. C
190% over limit
Discharged 87 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3308% over limit
Discharged 81.8 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
991% over limit
Discharged 81.8 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
93% over limit
Discharged 87 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
381% over limit
Discharged 36.1 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 32 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
313% over limit
Discharged 124 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1404% over limit
Discharged 36.1 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
176% over limit
Discharged 124 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, 5-day, 20 deg. C
230% over limit
Discharged 99 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
528% over limit
Discharged 47.1 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1863% over limit
Discharged 47.1 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
120% over limit
Discharged 99 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, 5-day, 20 deg. C
187% over limit
Discharged 129 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
9% over limit
Discharged 49 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
330% over limit
Discharged 129 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1059% over limit
Discharged 86.9 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3521% over limit
Discharged 86.9 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
63% over limit
Discharged 49 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
4667% over limit
Discharged 85.8 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
322% over limit
Discharged 190 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
533% over limit
Discharged 190 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
31% over limit
Discharged 59 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1044% over limit
Discharged 85.8 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
97% over limit
Discharged 59 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
47% over limit
Discharged 44 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
58% over limit
Discharged 71 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
137% over limit
Discharged 71 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2325% over limit
Discharged 87.3 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
8630% over limit
Discharged 87.3 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
BOD, 5-day, 20 deg. C
1070% over limit
Discharged 351 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
8425% over limit
Discharged 68.2 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
680% over limit
Discharged 351 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1794% over limit
Discharged 68.2 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
93% over limit
Discharged 87 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
1073% over limit
Discharged 2416.9 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2416.9 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.46 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
190% over limit
Discharged 87 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
50% over limit
Discharged 45 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
663% over limit
Discharged 229 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
409% over limit
Discharged 229 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
6810% over limit
Discharged 69.1 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1819% over limit
Discharged 69.1 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
May 31, 2025
E. coli
48929% over limit
Discharged 101000 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2928% over limit
Discharged 109 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
9706% over limit
Discharged 101000 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
1060% over limit
Discharged 348 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
673% over limit
Discharged 348 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
137% over limit
Discharged 71 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
58% over limit
Discharged 71 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7686% over limit
Discharged 109 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
3293% over limit
Discharged 47.5 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
497% over limit
Discharged 179 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
298% over limit
Discharged 179 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
14949% over limit
Discharged 155000 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
54% over limit
Discharged 46.1 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1219% over limit
Discharged 47.5 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
75143% over limit
Discharged 155000 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
60% over limit
Discharged 48 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
91% over limit
Discharged 86 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
359% over limit
Discharged 34.4 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
187% over limit
Discharged 86 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1086% over limit
Discharged 34.4 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 48 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, 5-day, 20 deg. C
31% over limit
Discharged 59 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
47% over limit
Discharged 44 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
279% over limit
Discharged 11 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
97% over limit
Discharged 59 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
47% over limit
Discharged 11 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, 5-day, 20 deg. C
100% over limit
Discharged 90 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
659% over limit
Discharged 22 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 106 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
193% over limit
Discharged 22 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
200% over limit
Discharged 90 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
253% over limit
Discharged 106 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
18% over limit
Discharged 53 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
560% over limit
Discharged 198 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
340% over limit
Discharged 198 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
77% over limit
Discharged 53 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1962% over limit
Discharged 59.8 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
697% over limit
Discharged 59.8 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
30% over limit
Discharged 39 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
397% over limit
Discharged 37.3 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
202% over limit
Discharged 136 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
353% over limit
Discharged 136 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1186% over limit
Discharged 37.3 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
703% over limit
Discharged 60.2 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
240% over limit
Discharged 153 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1976% over limit
Discharged 60.2 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
410% over limit
Discharged 153 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
BOD, 5-day, 20 deg. C
313% over limit
Discharged 186 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7471% over limit
Discharged 106 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2420 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2844% over limit
Discharged 106 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
1075% over limit
Discharged 2420 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
520% over limit
Discharged 186 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
8114% over limit
Discharged 115 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
178% over limit
Discharged 125 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
23395% over limit
Discharged 242000 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3094% over limit
Discharged 115 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
117376% over limit
Discharged 242000 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
317% over limit
Discharged 125 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Nitrogen, ammonia total [as N]
4186% over limit
Discharged 60 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1567% over limit
Discharged 60 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 45 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
16696% over limit
Discharged 173000 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
83881% over limit
Discharged 173000 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)