Tipton County Board of Education — NPDES permit TN0058092: limits, due date and EPA's record

Sewage treatment plant, Drummonds, Tennessee. NPDES permit TN0058092, in force until Jul 31, 2029. Last 12 months: over a limit 4 times (last May 2026), 60 required values missing, 4 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Parameter	Reported	Limit	Over by
March 2026	E. coli, daily maximum	17330 #/100mL	≤ 410 #/100mL	4127%
March 2026	E. coli, monthly geometric mean	3259.3 #/100mL	≤ 126 #/100mL	2487%
May 2026	Solids, total suspended, daily maximum	67.2 mg/L	≤ 45 mg/L	49%
May 2026	Solids, total suspended, monthly average	46.5 mg/L	≤ 30 mg/L	55%

Limits in force (32)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	daily minimum	≥ 6 mg/L	all year	001
pH	daily minimum	≥ 6 SU	all year	001
pH	daily maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	001
Solids, settleable	daily maximum	≤ 1 mL/L	all year	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.27 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	001
Nitrogen, ammonia total [as N]	monthly average	≤ .67 mg/L	May–Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 7.91 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 3.45 mg/L	May–Oct	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, total residual	daily maximum	≤ .02 mg/L	all year	001
E. coli	monthly geometric mean	≤ 126 #/100mL	all year	001
E. coli	daily maximum	≤ 410 #/100mL	all year	001
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 15 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 25 mg/L	all year	001
Oxygen, dissolved [DO]	daily minimum	≥ 1 mg/L	all year	002
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	002
BOD, 5-day, 20 deg. C	daily maximum	≤ 45 mg/L	all year	002
pH	daily minimum	≥ 6 SU	all year	002
pH	daily maximum	≤ 9 SU	all year	002
Solids, total suspended	monthly average	≤ 30 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	002
Solids, settleable	daily maximum	≤ 1 mL/L	all year	002
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year	002
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Chlorine, total residual	daily maximum	≤ 2 mg/L	all year	002
E. coli	monthly geometric mean	≤ 126 #/100mL	all year	002
E. coli	daily maximum	≤ 410 #/100mL	all year	002

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TN0058092 · MCP: https://passage-data.com/mcp