Clean Water Act discharge permit · NPDES TX0136352

SANTA CLARA CREEK 1 WWTP, Seguin, TX: NPDES TX0136352 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
2Pollutants with an effluent exceedance

SANTA CLARA CREEK 1 WWTP, held by GREEN VALLEY SPECIAL UTILITY DISTRICT, holds NPDES permit TX0136352, which discharges to Santa Clara Creek; Lower Cibolo Creek. EPA’s file records it issued September 14, 2018 and expiring March 1, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	SANTA CLARA CREEK 1 WWTP
Permittee as filed	GREEN VALLEY SPECIAL UTILITY DISTRICT
NPDES ID	TX0136352
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 14, 2018
Expiration date	March 1, 2020
Address	Seguin, TX 78155
Receiving water	SANTA CLARA CREEK; LOWER CIBOLO CREEK
Subwatershed	Lower Santa Clara Creek (HUC 121003040204)
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

9Pollutants on file
0Under a numeric limit
9With a violation of any kind
2With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Chlorine, total residual	16	8	July 31, 2026	100% over the limit
Phosphorus, total [as P]	16	4	April 30, 2022	322% over the limit
Solids, total suspended	12	0
Nitrogen, ammonia total [as N]	12	0
BOD, carbonaceous [5 day, 20 C]	12	0
pH	8	0
Flow, in conduit or thru treatment plant	8	0
E. coli	8	0
Oxygen, dissolved [DO]	4	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0136352.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TX0136352.

Start the watch

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0136352 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit TX0136352 for SANTA CLARA CREEK 1 WWTP in Seguin, TX, held by GREEN VALLEY SPECIAL UTILITY DISTRICT, which discharges to SANTA CLARA CREEK and LOWER CIBOLO CREEK. The permit is listed as administratively continued, with a Minor discharger class, 0 pollutants under a numeric limit, and 2 pollutants with an effluent exceedance.