TIMBERS WSD WWTF
NPDES ID: COG589146
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: 11 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
67% over limit
Discharged 3.5 mg/L against a permitted limit of 2.1 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
37% over limit
Discharged 13.7 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
515% over limit
Discharged 737.7 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
April 30, 2026
E. coli
511% over limit
Discharged 733.6 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7% over limit
Discharged 10.7 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
594% over limit
Discharged 12.5 mg/L against a permitted limit of 1.8 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
35% over limit
Discharged 13.5 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
9% over limit
Discharged 10.7 mg/L against a permitted limit of 9.8 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
47% over limit
Discharged 66 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
E. coli
431% over limit
Discharged 637.6 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
160% over limit
Discharged 61 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
334% over limit
Discharged 31.7 mg/L against a permitted limit of 7.3 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
269% over limit
Discharged 31.7 mg/L against a permitted limit of 8.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1613% over limit
Discharged 27.4 mg/L against a permitted limit of 1.6 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
34% over limit
Discharged 13.4 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
120% over limit
Discharged 66 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, percent removal
107% over limit
Discharged 69 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
60% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
E. coli
361% over limit
Discharged 552.9 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1947% over limit
Discharged 30.7 mg/L against a permitted limit of 1.5 mg/L (ROLL 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 (MX 7D AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
244% over limit
Discharged 28.9 mg/L against a permitted limit of 8.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
352% over limit
Discharged 28.9 mg/L against a permitted limit of 6.4 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
220% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
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 (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
29% over limit
Discharged 12.9 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
2038% over limit
Discharged 34.2 mg/L against a permitted limit of 1.6 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
22% over limit
Discharged 12.2 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
113% over limit
Discharged 68 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
424% over limit
Discharged 35.1 mg/L against a permitted limit of 6.7 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
354% over limit
Discharged 544.6 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
93% over limit
Discharged 58 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
282% over limit
Discharged 35.1 mg/L against a permitted limit of 9.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
29% over limit
Discharged 58 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, inorganic total
12% over limit
Discharged 11.2 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
93% over limit
Discharged 58 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
277% over limit
Discharged 451.8 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
38% over limit
Discharged 9.22 mg/L against a permitted limit of 6.7 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
14% over limit
Discharged 9.22 mg/L against a permitted limit of 8.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
300% over limit
Discharged 6.4 mg/L against a permitted limit of 1.6 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
29% over limit
Discharged 58 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
94% over limit
Discharged 3.3 mg/L against a permitted limit of 1.7 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
270% over limit
Discharged 443.7 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
October 31, 2025
E. coli
271% over limit
Discharged 445.6 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
175% over limit
Discharged 5.5 mg/L against a permitted limit of 2 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
14% over limit
Discharged 11.4 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
September 30, 2025
E. coli
271% over limit
Discharged 445.4 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
12% over limit
Discharged 11.2 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
500% over limit
Discharged 8.4 mg/L against a permitted limit of 1.4 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
August 31, 2025
E. coli
271% over limit
Discharged 445 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
579% over limit
Discharged 9.5 mg/L against a permitted limit of 1.4 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
July 31, 2025
E. coli
272% over limit
Discharged 445.8 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
180% over limit
Discharged 5.6 mg/L against a permitted limit of 2 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
7% over limit
Discharged 10.7 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
45% over limit
Discharged 3.2 mg/L against a permitted limit of 2.2 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
6% over limit
Discharged 10.6 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
260% over limit
Discharged 432.2 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, inorganic total
7% over limit
Discharged 10.7 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
146% over limit
Discharged 1859.7 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
14% over limit
Discharged 2.4 mg/L against a permitted limit of 2.1 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
263% over limit
Discharged 436 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
60% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 40 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
43% over limit
Discharged 14.3 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
7% over limit
Discharged 10.7 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
53% over limit
Discharged 77 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
46% over limit
Discharged 14.3 mg/L against a permitted limit of 9.8 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
500% over limit
Discharged 10.8 mg/L against a permitted limit of 1.8 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
200% over limit
Discharged 359.4 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
178% over limit
Discharged 23.9 mg/L against a permitted limit of 8.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
227% over limit
Discharged 23.9 mg/L against a permitted limit of 7.3 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
127% over limit
Discharged 68 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
51% over limit
Discharged 68 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1200% over limit
Discharged 20.8 mg/L against a permitted limit of 1.6 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
320% over limit
Discharged 37 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
60% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
E. coli
119% over limit
Discharged 262.3 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, 5-day, 20 deg. C
22% over limit
Discharged 55 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1400% over limit
Discharged 22.5 mg/L against a permitted limit of 1.5 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
406% over limit
Discharged 32.4 mg/L against a permitted limit of 6.4 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, inorganic total
4% over limit
Discharged 10.4 mg/L against a permitted limit of 10 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
58% over limit
Discharged 190.1 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
83% over limit
Discharged 55 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
286% over limit
Discharged 32.4 mg/L against a permitted limit of 8.4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, ammonia total [as N]
396% over limit
Discharged 33.25 mg/L against a permitted limit of 6.7 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
107% over limit
Discharged 62 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
140% over limit
Discharged 64 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
261% over limit
Discharged 33.25 mg/L against a permitted limit of 9.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 756 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1525% over limit
Discharged 26 mg/L against a permitted limit of 1.6 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
E. coli
60% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1512 MPN/100mL (MX 7D GM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38% over limit
Discharged 62 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
E. coli
55% over limit
Discharged 185.7 MPN/100mL against a permitted limit of 120 MPN/100mL (ROLL AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
281% over limit
Discharged 6.1 mg/L against a permitted limit of 1.6 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
253% over limit
Discharged 6 mg/L against a permitted limit of 1.7 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
195% over limit
Discharged 5.9 mg/L against a permitted limit of 2 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Solids, suspended percent removal
100% over limit
Discharged 70 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
47% over limit
Discharged 78 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
307% over limit
Discharged 5.7 mg/L against a permitted limit of 1.4 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
11% over limit
Discharged 11.1 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
16% over limit
Discharged 11.1 mg/L against a permitted limit of 9.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
286% over limit
Discharged 5.4 mg/L against a permitted limit of 1.4 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Nitrogen, ammonia total [as N]
145% over limit
Discharged 4.9 mg/L against a permitted limit of 2 mg/L (ROLL AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)