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Sewage treatment plant, major discharger, Topeka, Kansas. NPDES permit KS0042722, in force until Jan 31, 2027. Last 12 months: over a limit 20 times (last August 2026), 3 required values missing, 4 of 84 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Nitrogen, ammonia total [as N], daily maximum | 16.8 mg/L | ≤ 6 mg/L | 180% |
| October 2025 | Nitrogen, ammonia total [as N], monthly average | 5.28091 mg/L | ≤ 2.1 mg/L | 151% |
| October 2025 | Phosphorus, Total As P, EPA's "DPD AVG" | 296.74619 lb/d | ≤ 133.7 lb/d | 122% |
| November 2025 | Phosphorus, Total As P, EPA's "DPD AVG" | 281.4604 lb/d | ≤ 133.7 lb/d | 111% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 15.4 mg/L | ≤ 9.9 mg/L | 56% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 4.11813 mg/L | ≤ 4 mg/L | 3% |
| December 2025 | Phosphorus, Total As P, EPA's "DPD AVG" | 280.31612 lb/d | ≤ 133.7 lb/d | 110% |
| January 2026 | Nitrogen, ammonia total [as N], daily maximum | 42.7 mg/L | ≤ 9.9 mg/L | 331% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 7.9493 mg/L | ≤ 4 mg/L | 99% |
| January 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 299.01628 lb/d | ≤ 133.7 lb/d | 124% |
| February 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 287.617 lb/d | ≤ 133.7 lb/d | 115% |
| March 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 228.21573 lb/d | ≤ 133.7 lb/d | 71% |
| April 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 229.29342 lb/d | ≤ 133.7 lb/d | 71% |
| April 2026 | Solids, total suspended, monthly average | 38.53846 mg/L | ≤ 30 mg/L | 28% |
| April 2026 | Solids, total suspended, maximum weekly average | 110.25 mg/L | ≤ 45 mg/L | 145% |
| May 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 165.47321 lb/d | ≤ 133.7 lb/d | 24% |
| June 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 137.87461 lb/d | ≤ 133.7 lb/d | 3% |
| June 2026 | Solids, total suspended, monthly average | 32.33333 mg/L | ≤ 30 mg/L | 8% |
| June 2026 | Solids, total suspended, maximum weekly average | 114 mg/L | ≤ 45 mg/L | 153% |
| August 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 135.48954 lb/d | ≤ 133.7 lb/d | 1% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | monthly average | report only (SU) | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Oil & Grease | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.6 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7.8 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.9 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4.9 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.6 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.9 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.9 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.9 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.5 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.6 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.9 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.5 mg/L | Sep | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | monthly average | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Silver total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Priority Pollutants | monthly average | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Dec | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Jun | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Nov | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Aug | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Mar | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Jan | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Apr | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Jul | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Oct | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | May | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Sep | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Feb | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Dec | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Jun | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Nov | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Aug | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Mar | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Jan | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Apr | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Jul | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Oct | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | May | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Sep | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Feb | 001 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 001 |
| Nitrogen, Total As N | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, Total As N | EPA's "DPD AVG" | report only (lb/d) | all year | 001 |
| Phosphorus, Total As P | daily average | report only (mg/L) | all year | 001 |
| Phosphorus, Total As P | EPA's "DPD AVG" | ≤ 133.7 lb/d | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | 001 |
| Duration of discharge | monthly average | report only (hr) | all year | 001 |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily minimum | ≥ 46 % | all year | 001 |
| IC25 Static Renewal 7 Day Chronic Pimephales | daily minimum | ≥ 46 % | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 003 |
| Volume | monthly average | report only (MGD) | all year | 003 |
| Duration of discharge | monthly average | report only (hr) | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 004 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 004 |
| Volume | monthly average | report only (MGD) | all year | 004 |
| Duration of discharge | monthly average | report only (hr) | all year | 004 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 005 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 005 |
| Volume | monthly average | report only (MGD) | all year | 005 |
| Duration of discharge | monthly average | report only (hr) | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 006 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 006 |
| Volume | monthly average | report only (MGD) | all year | 006 |
| Duration of discharge | monthly average | report only (hr) | all year | 006 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 007 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 007 |
| Volume | monthly average | report only (MGD) | all year | 007 |
| Duration of discharge | monthly average | report only (hr) | all year | 007 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 008 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 008 |
| Volume | monthly average | report only (MGD) | all year | 008 |
| Duration of discharge | monthly average | report only (hr) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | all year | 009 |
| Rainfall | monthly average | report only (in) | all year | 010 |
| Stream flow, estimated | monthly average | report only (cfs) | all year | 011 |
Cited limits by parameter: Kansas's rules and the federal ones.
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