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Shreveport City of - Public Works Fleet Services

Sewage treatment plant, Shreveport, Louisiana. NPDES permit LA0102041, in force until May 31, 2030. Last 12 months: over a limit once (last June 2026), 4 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form Q quarterly (10 values)
Last report on file: June 2026
Oct 2024 – Sep 2025: 1 value over a limit, 8 required values missing, 0 of 4 reports late

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

Period ending	Parameter	Reported	Limit	Over by
June 2026	Aluminum, total [as Al], daily maximum	2.39 mg/L	≤ 2 mg/L	20%

Limits in force (10)

Parameter	Statistic	Limit	Months
Oxygen demand, chem. [high level] [COD]	daily maximum	≤ 125 mg/L	all year
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous maximum	≤ 9 SU	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Oil & Grease	daily maximum	≤ 15 mg/L	all year
Nitrogen, total [as N]	daily maximum	report only (mg/L)	all year
Phosphorus, total [as P]	daily maximum	report only (mg/L)	all year
Aluminum, total [as Al]	daily maximum	≤ 2 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (gal/d)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year

How strict are these limits?

Aluminum, total [as Al], daily maximum 2 mg/L — stricter than 48% of 33 other minor POTWs nationwide; 3% have the same limit
Solids, total suspended, daily maximum 45 mg/L — stricter than 38% of 1,356 other minor POTWs nationwide; 18% have the same limit

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0102041 · MCP: https://passage-data.com/mcp