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Caldwell County Schools

Elementary And Secondary Schools, Collettsville, North Carolina. NPDES permit NC0050075 expired Feb 28, 2025; its limits still apply. Last 12 months: over a limit 7 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 31 days after each period: form M monthly (9 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, 30-day average34.36 mg/L≤ 30 mg/L15%
December 2025Solids, total suspended, 30-day average41.75 mg/L≤ 30 mg/L39%
December 2025Solids, total suspended, daily maximum96 mg/L≤ 45 mg/L113%
April 2026BOD, 5-day, 20 deg. C, 30-day average56.475 mg/L≤ 30 mg/L88%
April 2026BOD, 5-day, 20 deg. C, daily maximum87.5 mg/L≤ 45 mg/L94%
May 2026BOD, 5-day, 20 deg. C, 30-day average32.075 mg/L≤ 30 mg/L7%
May 2026BOD, 5-day, 20 deg. C, daily maximum80.6 mg/L≤ 45 mg/L79%

Limits in force (9)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Apr–Oct
Flow, in conduit or thru treatment plant30-day average≤ .01 MGDall year

Cited limits by parameter: North Carolina's rules and the federal ones.

Same industry: the 78 Educational Services permits in North Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NC0050075 · MCP: https://passage-data.com/mcp