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Sewage treatment plant, major discharger, Junction City, Kansas. NPDES permit KS0034011, in force until Dec 31, 2026. Last 12 months: over a limit 24 times (last July 2026), 1 of 13 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, 5-day, 20 deg. C, monthly average | 31.5 mg/L | ≤ 30 mg/L | 5% |
| October 2025 | E. coli, monthly geometric mean | 3199.64579 #/100mL | ≤ 262 #/100mL | 1121% |
| October 2025 | Nitrogen, ammonia total [as N], daily maximum | 26.5 mg/L | ≤ 8.1 mg/L | 227% |
| October 2025 | Nitrogen, ammonia total [as N], monthly average | 25.75 mg/L | ≤ 2.5 mg/L | 930% |
| October 2025 | Phosphorus, Total As P, EPA's "DPD AVG" | 38.22351 lb/d | ≤ 20.89 lb/d | 83% |
| November 2025 | Nitrogen, ammonia total [as N], monthly average | 4.62 mg/L | ≤ 3.1 mg/L | 49% |
| November 2025 | Phosphorus, Total As P, EPA's "DPD AVG" | 49.17826 lb/d | ≤ 20.89 lb/d | 135% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 12.5 mg/L | ≤ 9.7 mg/L | 29% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 10.6 mg/L | ≤ 3.6 mg/L | 194% |
| December 2025 | Phosphorus, Total As P, EPA's "DPD AVG" | 48.35735 lb/d | ≤ 20.89 lb/d | 131% |
| January 2026 | E. coli, monthly geometric mean | 3503.14145 #/100mL | ≤ 2358 #/100mL | 49% |
| January 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 47.47598 lb/d | ≤ 20.89 lb/d | 127% |
| February 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 46.78987 lb/d | ≤ 20.89 lb/d | 124% |
| March 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 44.53137 lb/d | ≤ 20.89 lb/d | 113% |
| April 2026 | E. coli, monthly geometric mean | 382.91644 #/100mL | ≤ 262 #/100mL | 46% |
| April 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 42.99996 lb/d | ≤ 20.89 lb/d | 106% |
| May 2026 | Nitrogen, ammonia total [as N], daily maximum | 16.6 mg/L | ≤ 4.8 mg/L | 246% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 8.3 mg/L | ≤ 1.6 mg/L | 419% |
| May 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 40.73625 lb/d | ≤ 20.89 lb/d | 95% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | 21.5 mg/L | ≤ 3 mg/L | 617% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 10.972 mg/L | ≤ 1 mg/L | 997% |
| June 2026 | Phosphorus, Total As P, EPA's "DPD AVG" | 36.93018 lb/d | ≤ 20.89 lb/d | 77% |
| July 2026 | Nitrogen, ammonia total [as N], daily maximum | 21.4 mg/L | ≤ 2.6 mg/L | 723% |
| July 2026 | Nitrogen, ammonia total [as N], monthly average | 20.15 mg/L | ≤ .9 mg/L | 2139% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | monthly average | report only (SU) | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .9 mg/L | Aug |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | Jan |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | May |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.1 mg/L | Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.2 mg/L | Mar |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .9 mg/L | Jul |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | Feb |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Jun |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.5 mg/L | Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Sep |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.1 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.5 mg/L | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.7 mg/L | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4.8 mg/L | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.7 mg/L | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.7 mg/L | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.6 mg/L | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.7 mg/L | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3 mg/L | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.1 mg/L | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4.4 mg/L | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.7 mg/L | Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Chloride [as Cl] | monthly average | ≤ 250 mg/L | all year |
| Chloride [as Cl] | monthly average | report only (lb/d) | all year |
| Sulfate, total [as SO4] | monthly average | ≤ 250 mg/L | all year |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) | all year |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year |
| Thallium, total recoverable | monthly average | report only (ug/L) | all year |
| Beryllium, total recoverable [as Be] | monthly average | report only (ug/L) | all year |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year |
| Silver total recoverable | monthly average | report only (ug/L) | all year |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year |
| Lead, total recoverable | monthly average | report only (ug/L) | all year |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year |
| Copper, total recoverable | monthly average | report only (ug/L) | all year |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year |
| Priority Pollutants | monthly average | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Oct |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Aug |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Dec |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Jan |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Apr |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Nov |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Jun |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Feb |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Mar |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Sep |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | May |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Jul |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Oct |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Aug |
| E. coli | weekly geometric mean | report only (#/100mL) | Dec |
| E. coli | weekly geometric mean | report only (#/100mL) | Jan |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Apr |
| E. coli | weekly geometric mean | report only (#/100mL) | Nov |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Jun |
| E. coli | weekly geometric mean | report only (#/100mL) | Feb |
| E. coli | weekly geometric mean | report only (#/100mL) | Mar |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Sep |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | May |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Jul |
| Nitrogen, Total As N | daily average | report only (mg/L) | all year |
| Nitrogen, Total As N | EPA's "DPD AVG" | report only (lb/d) | all year |
| Phosphorus, Total As P | daily average | report only (mg/L) | all year |
| Phosphorus, Total As P | EPA's "DPD AVG" | ≤ 20.89 lb/d | all year |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | all year |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily minimum | ≥ 55 % | all year |
| IC25 Static Renewal 7 Day Chronic Pimephales | daily minimum | ≥ 55 % | all year |
Cited limits by parameter: Kansas's rules and the federal ones.
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