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Civic And Social Associations, Ridgedale, Missouri. NPDES permit MO0130656, in force until Apr 30, 2030. Last 12 months: over a limit 15 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 19.3 | ≤ 10.9 mg/L | 77% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 19.3 | ≤ 2.1 mg/L | 819% |
| December 2025 | Phosphorus, total [as P], monthly average | 7.05 | ≤ .5 mg/L | 1310% |
| March 2026 | Nitrogen, ammonia total [as N], daily maximum | 21.4 | ≤ 10.9 mg/L | 96% |
| March 2026 | Nitrogen, ammonia total [as N], monthly average | 21.4 | ≤ 2.1 mg/L | 919% |
| March 2026 | Phosphorus, total [as P], monthly average | 6.88 | ≤ .5 mg/L | 1276% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | 41 | ≤ 6 mg/L | 583% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 41 | ≤ 1.2 mg/L | 3317% |
| June 2026 | Phosphorus, total [as P], monthly average | 9.15 | ≤ .5 mg/L | 1730% |
| September 2026 | E. coli, daily maximum | > 2420 | ≤ 126 #/100mL | — |
| September 2026 | Nitrogen, ammonia total [as N], daily maximum | 58.9 | ≤ 6 mg/L | 882% |
| September 2026 | Nitrogen, ammonia total [as N], monthly average | 58.9 | ≤ 1.2 mg/L | 4808% |
| September 2026 | Phosphorus, total [as P], monthly average | 8.12 | ≤ .5 mg/L | 1524% |
| September 2026 | Solids, total suspended, monthly average | 27.6 | ≤ 15 mg/L | 84% |
| September 2026 | Solids, total suspended, weekly average | 27.6 | ≤ 20 mg/L | 38% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 15 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | weekly average | ≤ 20 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | Apr–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.9 mg/L | Jan, Feb, Mar, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.2 mg/L | Apr–Sep |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 mg/L | Jan, Feb, Mar, Oct, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year |
| Aluminum, total recoverable | daily maximum | ≤ 750 ug/L | all year |
| Aluminum, total recoverable | monthly average | ≤ 242 ug/L | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| E. coli | daily maximum | ≤ 126 #/100mL | all year |
| E. coli | monthly average | report only (#/100mL) | all year |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 212 Membership Organizations permits in Missouri.
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Your permit document is the final word. As JSON: /api/v1/permits/MO0130656 · MCP: https://passage-data.com/mcp