TOPEKA (OAKLAND) WASTEWATER PLANT (WWTP)
NPDES ID: KS0042722
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 7 effluent violations.
Violations
June 30, 2026
Solids, total suspended
8% over limit
Discharged 32.33333 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
153% over limit
Discharged 114 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
3% over limit
Discharged 62.59507241 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Phosphorus, Total As P
24% over limit
Discharged 75.12483671 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
28% over limit
Discharged 38.53846 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
71% over limit
Discharged 104.09921181 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
145% over limit
Discharged 110.25 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
March 31, 2026
Phosphorus, Total As P
71% over limit
Discharged 103.60994055 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Phosphorus, Total As P
115% over limit
Discharged 130.5781169 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
99% over limit
Discharged 7.9493 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
124% over limit
Discharged 135.75338998 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
331% over limit
Discharged 42.7 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
56% over limit
Discharged 15.4 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 0 MPN/100mL (MO GEO)
DMR, Monitor Only - Overdue
Phosphorus, Total As P
110% over limit
Discharged 127.26351741 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3% over limit
Discharged 4.11813 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, Total As P
111% over limit
Discharged 127.78302053 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
180% over limit
Discharged 16.8 mg/L against a permitted limit of 6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
122% over limit
Discharged 134.72276913 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
151% over limit
Discharged 5.28091 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Phosphorus, Total As P
128% over limit
Discharged 138.31700538 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Phosphorus, Total As P
131% over limit
Discharged 140.27552504 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
20% over limit
Discharged 3.13 mg/L against a permitted limit of 2.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
137% over limit
Discharged 143.82055223 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
481% over limit
Discharged 261.33333 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
139% over limit
Discharged 145.00511086 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
156% over limit
Discharged 76.72727 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Phosphorus, Total As P
98% over limit
Discharged 120.29213409 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
101% over limit
Discharged 90.5 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
26% over limit
Discharged 37.69231 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, Total As P
39% over limit
Discharged 84.65284837 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Phosphorus, Total As P
42% over limit
Discharged 85.90467618 kg/d against a permitted limit of 60.69979949 kg/d (DPD AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
245% over limit
Discharged 138 mg/L against a permitted limit of 40 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.8 SU against a permitted limit of 6 SU (DAILY MN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
149% over limit
Discharged 62.33333 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
593% over limit
Discharged 312 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
428% over limit
Discharged 158.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, ammonia total [as N]
311% over limit
Discharged 16.4311 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
83% over limit
Discharged 73 mg/L against a permitted limit of 40 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 35 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
280% over limit
Discharged 37.6 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
249% over limit
Discharged 34.6 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
122% over limit
Discharged 8.8705 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, carbonaceous [5 day, 20 C]
1% over limit
Discharged 40.5 mg/L against a permitted limit of 40 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 106.4 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
42% over limit
Discharged 42.71429 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
BOD, carbonaceous [5 day, 20 C]
69% over limit
Discharged 67.5 mg/L against a permitted limit of 40 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
477% over limit
Discharged 259.5 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
86% over limit
Discharged 55.90909 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 17, 2026 (8 hours ago)