QUADVEST LP — NPDES permit TX0133817: limits, due date and EPA's record

NPDES permit TX0133817 · Minor NON-POTW · administratively continued, expires 2025-04-10 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2025-04-10 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-07-31. Most often over: Flow, in conduit or thru treatment plant (3).

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (18)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	MO MIN	>= 4 mg/L	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	DAILY AV	<= 15 mg/L	all year
001	Solids, total suspended	SINGGRAB	<= 60 mg/L	all year
001	Solids, total suspended	DAILY AV	<= 31.3 lb/d	all year
001	Nitrogen, ammonia total [as N]	DAILY AV	<= 3 mg/L	all year
001	Nitrogen, ammonia total [as N]	SINGGRAB	<= 15 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY AV	<= 6.3 lb/d	all year
001	Flow, in conduit or thru treatment plant	DAILY AV	<= .25 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	MO MIN	>= 1 mg/L	all year
001	Chlorine, total residual	MO MAX	<= 4 mg/L	all year
001	E. coli	DAILY AV	<= 126 MPN/100mL	all year
001	E. coli	SINGGRAB	<= 399 MPN/100mL	all year
001	BOD, carbonaceous [5 day, 20 C]	DAILY AV	<= 10 mg/L	all year
001	BOD, carbonaceous [5 day, 20 C]	SINGGRAB	<= 35 mg/L	all year
001	BOD, carbonaceous [5 day, 20 C]	DAILY AV	<= 20.9 lb/d	all year