Clean Water Act discharge permit · NPDES TX0071081

MONTICELLO THERMO LIGNITE MINING AREA, Sulphur Springs, TX: NPDES TX0071081 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
6Pollutants under a numeric limit
6Pollutants with an effluent exceedance

MONTICELLO THERMO LIGNITE MINING AREA, held by LUMINANT MINING COMPANY LLC, holds NPDES permit TX0071081, which discharges to Unnamed Trib; Rock Ck;White Oak Ck;Sulphur/So Sulp. EPA’s file records it issued September 22, 2020 and expiring September 22, 2025. 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	MONTICELLO THERMO LIGNITE MINING AREA
Permittee as filed	LUMINANT MINING COMPANY LLC
NPDES ID	TX0071081
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	September 22, 2020
Expiration date	September 22, 2025
Address	Sulphur Springs, TX 75482
Receiving water	UNNAMED TRIB; ROCK CK;WHITE OAK CK;SULPHUR/SO SULP
Receiving water impaired	303(D) Listed
Subwatershed	Crush Lake-Rock Creek (HUC 111403030103)
SIC	1221 – Bituminous Coal And Lignite - Surface

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

11Pollutants on file
6Under a numeric limit
11With a violation of any kind
6With 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
Aluminum, total [as Al]	0	58	40	July 31, 2020	1,037% over the limit
Flow, in conduit or thru treatment plant	18	75	3	January 31, 2014	169% over the limit
pH	18	78	2	August 31, 2013
Iron, total [as Fe]	2	16	2	December 31, 2001	43% over the limit
Solids, total suspended	2	39	1	March 31, 2021	1% over the limit
BOD, 5-day, 20 deg. C	0	25	1	March 31, 2004	15% over the limit
Solids, settleable	8	23	0
Chlorine, total residual	0	17	0
Oxygen, dissolved [DO]	0	8	0
Selenium, total [as Se]	1	5	0
E. coli, colony forming units [CFU]	0	2	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 TX0071081.

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.

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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 TX0071081 there.

Nearby on the register

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

This public-records page covers NPDES permit TX0071081 for the Monticello Thermo Lignite Mining Area in Sulphur Springs, TX, held by Luminant Mining Company LLC, a minor discharger whose permit is administratively continued. The page lists 6 pollutants under a numeric limit and 6 pollutants with an effluent exceedance, and it places the discharge in subwatershed HUC 111403030103.