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Private Households, Foristell, Missouri. NPDES permit MO0100358, in force until Mar 31, 2029. Last 12 months: over a limit 8 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 8.22 | ≤ 8 mg/L | 3% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 3.68 | ≤ 1.5 mg/L | 145% |
| February 2026 | Phosphorus, total [as P], annual average | 1.5 | ≤ 1 mg/L | 50% |
| March 2026 | Phosphorus, total [as P], annual average | 1.88 | ≤ 1 mg/L | 88% |
| April 2026 | Phosphorus, total [as P], annual average | 1.61 | ≤ 1 mg/L | 61% |
| May 2026 | Phosphorus, total [as P], annual average | 1.45 | ≤ 1 mg/L | 45% |
| July 2026 | Phosphorus, total [as P], annual average | 1.34 | ≤ 1 mg/L | 34% |
| August 2026 | Phosphorus, total [as P], annual average | 1.21 | ≤ 1 mg/L | 21% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 20 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 13 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | weekly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 13 mg/L | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8 mg/L | Jan, Feb, Mar, Oct, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8 mg/L | Apr–Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Jan, Feb, Mar, Oct, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.2 mg/L | Apr–Sep | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | 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] | annual average | ≤ 1 mg/L | all year | 001 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| E. coli | daily maximum | ≤ 1030 #/100mL | Apr–Oct | 001 |
| E. coli | 30-day geometric mean | ≤ 206 #/100mL | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | INF |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | INF |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | INF |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | INF |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | INF |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 22 Private Households permits in Missouri.
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