Liberty Utilities (Woodmark Sewer) Corp — NPDES permit TX0098795: limits, due date and EPA's record

Liberty Utilities (Woodmark Sewer) Corp

Sewerage Systems, Tyler, Texas. NPDES permit TX0098795 expired Sep 15, 2026; its limits still apply. Last 12 months: over a limit 19 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due

About 20 days after each period: form B monthly (18 values)

Last report on file

August 2026

Oct 2024 – Sep 2025

46 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 19 values over a limit

Period ending	Parameter	Reported	Limit	Over by
October 2025	Nitrogen, ammonia total [as N], daily average	27.062 lb/d	≤ 12 lb/d	126%
October 2025	Nitrogen, ammonia total [as N], daily average	9.2 mg/L	≤ 2 mg/L	360%
October 2025	Nitrogen, ammonia total [as N], daily maximum	13 mg/L	≤ 10 mg/L	30%
November 2025	Nitrogen, ammonia total [as N], daily average	10.3 mg/L	≤ 2 mg/L	415%
November 2025	Nitrogen, ammonia total [as N], daily maximum	12.5 mg/L	≤ 10 mg/L	25%
December 2025	Nitrogen, ammonia total [as N], daily average	20.3 mg/L	≤ 2 mg/L	915%
December 2025	Nitrogen, ammonia total [as N], daily maximum	26.1 mg/L	≤ 10 mg/L	161%
January 2026	E. coli, daily average	602.1 CFU/100mL	≤ 126 CFU/100mL	378%
January 2026	E. coli, daily maximum	1203.3 CFU/100mL	≤ 399 CFU/100mL	202%
January 2026	Nitrogen, ammonia total [as N], daily average	13.5 mg/L	≤ 2 mg/L	575%
January 2026	Nitrogen, ammonia total [as N], daily average	34.018 lb/d	≤ 12 lb/d	183%
January 2026	Nitrogen, ammonia total [as N], daily maximum	22.4 mg/L	≤ 10 mg/L	124%
February 2026	Nitrogen, ammonia total [as N], daily average	14.5 mg/L	≤ 2 mg/L	625%
February 2026	Nitrogen, ammonia total [as N], daily average	53.03 lb/d	≤ 12 lb/d	342%
February 2026	Nitrogen, ammonia total [as N], daily maximum	19.9 mg/L	≤ 10 mg/L	99%
March 2026	Nitrogen, ammonia total [as N], daily average	16.631 lb/d	≤ 12 lb/d	39%
March 2026	Nitrogen, ammonia total [as N], daily average	4.7 mg/L	≤ 2 mg/L	135%
April 2026	Solids, total suspended, daily average	15.01 mg/L	≤ 15 mg/L	0%
June 2026	Nitrogen, ammonia total [as N], daily average	2.7 mg/L	≤ 2 mg/L	35%

Limits in force (18)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	monthly minimum	≥ 5 mg/L	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	daily average	≤ 15 mg/L	all year
Solids, total suspended	daily maximum	≤ 40 mg/L	all year
Solids, total suspended	daily average	≤ 88 lb/d	all year
Nitrogen, ammonia total [as N]	daily average	≤ 2 mg/L	all year
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year
Nitrogen, ammonia total [as N]	daily average	≤ 12 lb/d	all year
Flow, in conduit or thru treatment plant	daily average	≤ .7 MGD	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	monthly minimum	≥ 1 mg/L	all year
Chlorine, total residual	monthly maximum	≤ 4 mg/L	all year
E. coli	daily average	≤ 126 CFU/100mL	all year
E. coli	daily maximum	≤ 399 CFU/100mL	all year
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 10 mg/L	all year
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 25 mg/L	all year
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 58 lb/d	all year

How strict are these limits?

Oxygen, dissolved [DO], monthly minimum at least 5 mg/L — stricter than 82% of 627 other minor industrial and other permits in Texas; 6% have the same limit

Solids, total suspended, daily maximum 40 mg/L — stricter than 81% of 244 other minor industrial and other permits in Texas; 12% have the same limit

Nitrogen, ammonia total [as N], daily average 2 mg/L — stricter than 80% of 411 other minor industrial and other permits in Texas; 18% have the same limit

Your permit document is the final word. As JSON: /api/v1/permits/TX0098795 · MCP: https://passage-data.com/mcp