Tennessee Wildlife Resources Agency (TWRA) — NPDES permit TN0067938: limits, due date and EPA's record

Fish Hatcheries And Preserves, Normandy, Tennessee. NPDES permit TN0067938, in force until May 31, 2029. Last 12 months: no values over a limit, 14 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (24)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	daily minimum	report only (mg/L)	all year	001
Oxygen, dissolved [DO]	daily minimum	report only (mg/L)	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	daily maximum	≤ 15 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 15 mg/L	all year	001
Solids, settleable	daily maximum	≤ .5 mL/L	all year	001
Solids, settleable	daily maximum	≤ .5 mL/L	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Oxygen, dissolved [DO]	daily minimum	report only (mg/L)	all year	002
Oxygen, dissolved [DO]	daily minimum	report only (mg/L)	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	daily maximum	≤ 15 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 15 mg/L	all year	002
Solids, settleable	daily maximum	≤ .5 mL/L	all year	002
Solids, settleable	daily maximum	≤ .5 mL/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	monthly average	report only (MGD)	all year	002

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TN0067938 · MCP: https://passage-data.com/mcp