COMAL COUNTY WATER IMPROVEMENT DISTRICT 3 MASTER DISTRICT+ — NPDES permit TX0141186: limits, due date and EPA's record

NPDES permit TX0141186 · Minor NON-POTW · effective, expires 2027-03-18 · 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.

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

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (12), Phosphorus, total [as P] (10), BOD, carbonaceous [5 day, 20 C] (2).

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 (19)

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	<= 7.51 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	<= 1.5 lb/d	all year
001	Phosphorus, total [as P]	DAILY AV	<= 1 mg/L	all year
001	Phosphorus, total [as P]	SINGGRAB	<= 6 mg/L	all year
001	Phosphorus, total [as P]	DAILY AV	<= .5 lb/d	all year
001	Flow, in conduit or thru treatment plant	DAILY AV	<= .06 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	E. coli	DAILY AV	<= 126 CFU/100mL	all year
001	E. coli	SINGGRAB	<= 399 CFU/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	<= 5 lb/d	all year