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Sewage treatment plant, major discharger, Wellington, Kansas. NPDES permit KS0099571, in force until Sep 30, 2028. Last 12 months: over a limit 5 times (last July 2026), 4 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | E. coli, monthly geometric mean | 8674.96398 #/100mL | ≤ 3843 #/100mL | 126% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | 4.53 mg/L | ≤ 3 mg/L | 51% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 3.025 mg/L | ≤ .8 mg/L | 278% |
| July 2026 | E. coli, monthly geometric mean | 30288.4466 #/100mL | ≤ 3843 #/100mL | 688% |
| July 2026 | Nitrogen, ammonia total [as N], monthly average | .915 mg/L | ≤ .7 mg/L | 31% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | May | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Jun | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Feb | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | Mar | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Jan | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Jul | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Sep | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | Apr | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Aug | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | Nov | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | May | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Dec | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | Jun | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Feb | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 40 mg/L | Mar | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Jan | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | Jul | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 40 mg/L | Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | Sep | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 40 mg/L | Apr | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | Aug | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 40 mg/L | Nov | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | 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 |
| 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 | ≤ .8 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.2 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.1 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.4 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.4 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .9 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .7 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .7 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.4 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.4 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.1 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4.4 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.9 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.1 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.5 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.4 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.8 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.8 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.5 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.1 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.1 mg/L | Jan | 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 |
| Sulfate, total [as SO4] | 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 |
| E. coli | monthly geometric mean | ≤ 3843 #/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" | report only (lb/d) | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | all year | 001 |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily minimum | ≥ 73 % | all year | 001 |
| IC25 Static Renewal 7 Day Chronic Pimephales | daily minimum | ≥ 73 % | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 002 |
| 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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Phosphorus, Total As P, EPA's "DPD AVG" | 14.3 lb/d | new | 26.38 lb/d (11 values) | 1.85× |
Cited limits by parameter: Kansas's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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