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Elementary And Secondary Schools, Chatham, Virginia. NPDES permit VA0027715, in force until Nov 30, 2026. Last 12 months: over a limit 4 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 27.2 | ≤ 10.1 mg/L | 169% |
| December 2025 | Nitrogen, ammonia total [as N], maximum weekly average | 29.9 | ≤ 10.1 mg/L | 196% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 19.9 | ≤ 10.1 mg/L | 97% |
| February 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 25.6 | ≤ 10.1 mg/L | 153% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 24 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 36 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ .45 kg/d | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ .68 kg/d | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous 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 | ≤ .57 kg/d | all year |
| Solids, total suspended | maximum weekly average | ≤ .85 kg/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10.1 mg/L | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 10.1 mg/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .006 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) (alert, not enforceable) | all year |
| Chlorine, total residual | monthly average | ≤ 9.4 ug/L | all year |
| Chlorine, total residual | maximum weekly average | ≤ 12.3 ug/L | all year |
| Chlorine, total residual | instantaneous minimum | ≥ .6 mg/L | all year |
| E. coli | geometric mean | ≤ 126 #/100mL | all year |
Cited limits by parameter: Virginia's rules and the federal ones.
Same industry: the 22 Educational Services permits in Virginia.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/VA0027715 · MCP: https://passage-data.com/mcp