Passage Data · Check a report · Use it from your AI

Hickman County Board of Education

Sewage treatment plant, Lyles, Tennessee. NPDES permit TN0067130, in force until Sep 30, 2028. Last 12 months: over a limit 6 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form G monthly (14 values)
Renewal application due
Apr 3, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
5 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
October 2025E. coli, daily maximum2420 #/100mL≤ 941 #/100mL157%
October 2025E. coli, monthly average1307 #/100mL≤ 126 #/100mL937%
February 2026Solids, total suspended, daily maximum136 mg/L≤ 45 mg/L202%
February 2026Solids, total suspended, monthly average68 mg/L≤ 30 mg/L127%
September 2026Nitrogen, ammonia total [as N], daily maximum5.8 mg/L≤ 1.33 mg/L336%
September 2026Nitrogen, ammonia total [as N], monthly average3 mg/L≤ .887 mg/L238%

Limits in force (16)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, settleabledaily maximum≤ 1 mL/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 1.69 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .887 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 2.54 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 1.33 mg/LMay–Oct
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly average≤ 126 #/100mLall year
E. colidaily maximum≤ 941 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 35 mg/Lall year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0067130 · MCP: https://passage-data.com/mcp