Hooks, City of — NPDES permit TX0022969: limits, due date and EPA's record

Hooks, City of

Sewage treatment plant, Hooks, Texas. NPDES permit TX0022969, in force until Jun 15, 2031. Last 12 months: over a limit 21 times (last September 2026), 6 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due

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

Last report on file

September 2026

Oct 2024 – Sep 2025

28 values over a limit, 36 required values missing, 8 of 12 reports late

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

All 21 values over a limit

Period ending	Parameter	Reported	Limit	Over by
November 2025	Nitrogen, ammonia total [as N], daily average	15.6 mg/L	≤ 3 mg/L	420%
November 2025	Nitrogen, ammonia total [as N], daily maximum	27 mg/L	≤ 10 mg/L	170%
December 2025	BOD, carbonaceous [5 day, 20 C], daily average	32.1 mg/L	≤ 10 mg/L	221%
December 2025	BOD, carbonaceous [5 day, 20 C], daily maximum	64.2 mg/L	≤ 25 mg/L	157%
December 2025	Nitrogen, ammonia total [as N], daily average	20.13 mg/L	≤ 3 mg/L	571%
December 2025	Nitrogen, ammonia total [as N], daily maximum	32.9 mg/L	≤ 10 mg/L	229%
December 2025	Solids, total suspended, daily average	17.5 mg/L	≤ 15 mg/L	17%
January 2026	E. coli, daily maximum	2420 CFU/100mL	≤ 399 CFU/100mL	507%
January 2026	Nitrogen, ammonia total [as N], daily average	24.2 mg/L	≤ 3 mg/L	707%
January 2026	Nitrogen, ammonia total [as N], daily average	52.3 lb/d	≤ 23 lb/d	127%
January 2026	Nitrogen, ammonia total [as N], daily maximum	30.3 mg/L	≤ 10 mg/L	203%
February 2026	Nitrogen, ammonia total [as N], daily average	5.15 mg/L	≤ 3 mg/L	72%
February 2026	Nitrogen, ammonia total [as N], daily maximum	10.7 mg/L	≤ 10 mg/L	7%
April 2026	E. coli, daily average	678 CFU/100mL	≤ 126 CFU/100mL	438%
April 2026	E. coli, daily maximum	2420 CFU/100mL	≤ 399 CFU/100mL	507%
April 2026	Nitrogen, ammonia total [as N], daily average	5.01 mg/L	≤ 3 mg/L	67%
May 2026	Nitrogen, ammonia total [as N], daily average	5.76 mg/L	≤ 3 mg/L	92%
June 2026	Solids, total suspended, daily average	174.3 lb/d	≤ 113 lb/d	54%
June 2026	Solids, total suspended, daily maximum	42.6 mg/L	≤ 40 mg/L	7%
July 2026	Nitrogen, ammonia total [as N], daily average	3.58 mg/L	≤ 3 mg/L	19%
September 2026	Nitrogen, ammonia total [as N], daily average	3.1 mg/L	≤ 3 mg/L	3%

Limits in force (18)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	monthly minimum	≥ 4 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	≤ 113 lb/d	all year
Nitrogen, ammonia total [as N]	daily average	≤ 3 mg/L	all year
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year
Nitrogen, ammonia total [as N]	daily average	≤ 23 lb/d	all year
Flow, in conduit or thru treatment plant	daily average	≤ .9 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	≤ 75 lb/d	all year

How strict are these limits?

Solids, total suspended, daily average 15 mg/L — stricter than 35% of 939 other minor POTWs in Texas; 58% have the same limit

Oxygen, dissolved [DO], monthly minimum at least 4 mg/L — stricter than 15% of 905 other minor POTWs in Texas; 59% have the same limit

Solids, total suspended, daily maximum 40 mg/L — stricter than 15% of 264 other minor POTWs in Texas; 81% have the same limit

Your permit document is the final word. As JSON: /api/v1/permits/TX0022969 · MCP: https://passage-data.com/mcp