Guadalupe-Blanco River Authority — NPDES permit TX0125288: limits, due date and EPA's record

Sewage treatment plant, Buda, Texas. NPDES permit TX0125288, in force until Feb 20, 2031. Last 12 months: no values over a limit, 4 required values missing, 3 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (64)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	monthly minimum	≥ 5 mg/L	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	daily average	≤ 5 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 20 mg/L	all year	001
Solids, total suspended	daily average	≤ 29 lb/d	all year	001
Nitrogen, ammonia total [as N]	daily average	≤ 2 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily average	≤ 12 lb/d	all year	001
Phosphorus, total [as P]	daily average	≤ .5 mg/L	all year	001
Phosphorus, total [as P]	daily maximum	≤ 2 mg/L	all year	001
Phosphorus, total [as P]	daily average	≤ 2.9 lb/d	all year	001
Flow, in conduit or thru treatment plant	daily average	≤ .7 MGD	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, total residual	monthly minimum	≥ 1 mg/L	all year	001
Chlorine, total residual	monthly maximum	≤ 4 mg/L	all year	001
E. coli	daily average	≤ 126 CFU/100mL	all year	001
E. coli	daily maximum	≤ 399 CFU/100mL	all year	001
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 5 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 20 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 29 lb/d	all year	001
Oxygen, dissolved [DO]	monthly minimum	≥ 5 mg/L	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	daily average	≤ 5 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 20 mg/L	all year	002
Solids, total suspended	daily average	≤ 41 lb/d	all year	002
Nitrogen, ammonia total [as N]	daily average	≤ 2 mg/L	all year	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	002
Nitrogen, ammonia total [as N]	daily average	≤ 17 lb/d	all year	002
Phosphorus, total [as P]	daily average	≤ .5 mg/L	all year	002
Phosphorus, total [as P]	daily maximum	≤ 2 mg/L	all year	002
Phosphorus, total [as P]	daily average	≤ 4.1 lb/d	all year	002
Flow, in conduit or thru treatment plant	daily average	≤ .99 MGD	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Chlorine, total residual	monthly minimum	≥ 1 mg/L	all year	002
Chlorine, total residual	monthly maximum	≤ 4 mg/L	all year	002
E. coli	daily average	≤ 126 CFU/100mL	all year	002
E. coli	daily maximum	≤ 399 CFU/100mL	all year	002
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 5 mg/L	all year	002
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 20 mg/L	all year	002
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 41 lb/d	all year	002
Oxygen, dissolved [DO]	monthly minimum	≥ 5 mg/L	all year	003
pH	minimum	≥ 6 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Solids, total suspended	daily average	≤ 5 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 20 mg/L	all year	003
Solids, total suspended	daily average	≤ 41 lb/d	all year	003
Nitrogen, ammonia total [as N]	daily average	≤ 2 mg/L	all year	003
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	003
Nitrogen, ammonia total [as N]	daily average	≤ 17 lb/d	all year	003
Phosphorus, total [as P]	daily average	≤ 4.1 mg/L	all year	003
Phosphorus, total [as P]	daily maximum	≤ 2 mg/L	all year	003
Phosphorus, total [as P]	daily average	≤ .5 lb/d	all year	003
Flow, in conduit or thru treatment plant	daily average	≤ .99 MGD	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
Chlorine, total residual	monthly minimum	≥ 1 mg/L	all year	003
Chlorine, total residual	monthly maximum	≤ 4 mg/L	all year	003
E. coli	daily average	≤ 126 CFU/100mL	all year	003
E. coli	daily maximum	≤ 399 CFU/100mL	all year	003
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 5 mg/L	all year	003
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 20 mg/L	all year	003
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 41 lb/d	all year	003
Flow, in conduit or thru treatment plant	daily average	≤ .99 MGD	all year	004

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TX0125288 · MCP: https://passage-data.com/mcp