Clean Water Act discharge permit · NPDES TX0104451

NATIONAL TRUCK STOP WWTP, Harrison County, TX: NPDES TX0104451 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
4Pollutants with an effluent exceedance

NATIONAL TRUCK STOP WWTP, held by UNITED CENTRAL BANK, holds NPDES permit TX0104451, which discharges to Mason Ck/Sabine River Seg. No. 0505. EPA’s file records it issued August 30, 2006 and expiring April 1, 2011. 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	NATIONAL TRUCK STOP WWTP
Permittee as filed	UNITED CENTRAL BANK
NPDES ID	TX0104451
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
Issued	August 30, 2006
Expiration date	April 1, 2011
Address	Harrison County, TX
Receiving water	MASON CK/SABINE RIVER SEG. NO. 0505
Subwatershed	Mason Creek (HUC 120100020602)
SIC	5541 – Gasoline Service Stations

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

12Pollutants on file
9Under a numeric limit
12With a violation of any kind
4With 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	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	2	122	12	May 31, 2010	99,999% over the limit
Solids, total suspended	2	120	8	February 28, 2013	124% over the limit
Flow, in conduit or thru treatment plant	2	79	2	April 30, 2008	199% over the limit
BOD, carbonaceous [5 day, 20 C]	2	105	1	October 31, 2009	22% over the limit
Oxygen demand, chem. [high level] [COD]	2	110	0
Oil & Grease	2	110	0
Chlorine, total residual	2	80	0
pH	2	77	0
Oxygen, dissolved [DO]	1	38	0
E. coli	0	32	0
Lead, total [as Pb]	0	24	0
BOD, 5-day, 20 deg. C	0	6	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 TX0104451.

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

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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 TX0104451 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES TX0104451 for NATIONAL TRUCK STOP WWTP in Harrison County, TX, held by UNITED CENTRAL BANK, with a status of administratively continued and a discharger class of Minor. The facts list 4 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, and the permit's receiving water is MASON CK/SABINE RIVER SEG. NO. 0505 within the Mason Creek (HUC 120100020602) subwatershed.