Clean Water Act discharge permit · NPDES TX0121762

BASTROP ENERGY CENTER, Cedar Creek, TX: NPDES TX0121762 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
16Pollutants under a numeric limit
5Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

BASTROP ENERGY CENTER, held by BASTROP ENERGY PARTNERS LP, holds NPDES permit TX0121762, which discharges to Colorado River Below Lady Bird Lake. EPA’s file records it issued October 30, 2019 and expiring October 30, 2024.

BASTROP ENERGY CENTER, Cedar Creek, Texas: Individual permit TX0121762, held by BASTROP ENERGY PARTNERS LP; Administratively continued (past its expiration date and still in force until reissued); issued October 30, 2019, term to October 30, 2024; discharges to COLORADO RIVER BELOW LADY BIRD LAKE.

Oil & Grease: 2 limits, 19 violations of any kind, 3 effluent exceedances, latest September 30, 2022, largest 860% over the limit.
Solids, total suspended: 2 limits, 6 violations of any kind, 2 effluent exceedances, latest November 30, 2010, largest 65% over the limit.
Flow, in conduit or thru treatment plant: 2 limits, 6 violations of any kind, 2 effluent exceedances, latest December 31, 2005, largest 38,450% over the limit.
Chlorine, total residual: 0 limits, 9 violations of any kind, 1 effluent exceedance, latest July 31, 2005, largest 20% over the limit.
pH: 2 limits, 5 violations of any kind, 1 effluent exceedance, latest July 31, 2005.
Temperature, water deg. fahrenheit: 2 limits, 25 violations of any kind, 0 effluent exceedances.
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas: 4 limits, 22 violations of any kind, 0 effluent exceedances.
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas: 4 limits, 22 violations of any kind, 0 effluent exceedances.
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex: 4 limits, 20 violations of any kind, 0 effluent exceedances.
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex: 4 limits, 20 violations of any kind, 0 effluent exceedances.
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas: 4 limits, 7 violations of any kind, 0 effluent exceedances.
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Chlorine, free available: 2 limits, 4 violations of any kind, 0 effluent exceedances.
LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 4 violations of any kind, 0 effluent exceedances.
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Sulfate, total [as SO4]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Whole effluent toxicity - retest #1: 7 limits, 0 violations of any kind, 0 effluent exceedances.
Whole effluent toxicity - retest #2: 7 limits, 0 violations of any kind, 0 effluent exceedances.

April 20, 2023: Permit Violations - Violation Specified in Comment (ST6).
October 26, 2017: Permit Violations - Violation Specified in Comment (ST6).

BASTROP ENERGY CENTER among its neighbors

EPA’s permit file holds 7 discharge permits in the Coleman Branch-Colorado River subwatershed (HUC 120903010108), TX0121762 among them. Its county holds 222, 5 of them major permits; TX0121762 is a major permit.

Other permits in the Coleman Branch-Colorado River subwatershed (HUC 120903010108)

AUSTROP SUBSTATION, Manor: TXR1536ZA, minor permit, discharging to DRY CREEK, permit term to March 4, 2028
CALDWELL LANE OUTDOOR STORAGE, Austin: TXR1549TX, minor permit, discharging to COLORADO RIVER BELOW LADY BIRD LAKE, permit term to March 4, 2028
CHRISTOPHER DRIVE SINGLE-FAMILY HOMES CONSTRUCTION PLAN, Austin: TXR1547NE, minor permit, discharging to LAKE AUSTIN, permit term to March 4, 2028
MM - OWEN S&G, Webberville: TXR05GC11, minor permit, permit term to August 13, 2026
MM - WEBBERVILLE S&G, Webberville: TXR05GC07, minor permit, permit term to August 13, 2026
TRAVIS MATERIALS, Elgin: TXR05HC52, minor permit, permit term to August 13, 2031

Identity

Facility as filed	BASTROP ENERGY CENTER
Permittee as filed	BASTROP ENERGY PARTNERS LP
NPDES ID	TX0121762
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Not a publicly owned treatment works
Issued	October 30, 2019
Expiration date	October 30, 2024
Address	Cedar Creek, TX 78612
Receiving water	COLORADO RIVER BELOW LADY BIRD LAKE
Subwatershed	Coleman Branch-Colorado River (HUC 120903010108)
SIC	4911 – Electric Services
Other EPA IDs (FRS)	RCRA handler TXR000043091; ICIS-AIR source TX0000004802100013

Effluent limits and exceedances

18Pollutants on file
16Under a numeric limit
16With a violation of any kind
5With 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
Oil & Grease	2	19	3	September 30, 2022	860% over the limit
Solids, total suspended	2	6	2	November 30, 2010	65% over the limit
Flow, in conduit or thru treatment plant	2	6	2	December 31, 2005	38,450% over the limit
Chlorine, total residual	0	9	1	July 31, 2005	20% over the limit
pH	2	5	1	July 31, 2005
Temperature, water deg. fahrenheit	2	25	0
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	4	22	0
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas	4	22	0
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex	4	20	0
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex	4	20	0
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas	4	7	0
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex	4	4	0
Chlorine, free available	2	4	0
LC50 Pass/Fail Static 24Hr Acute D. Pulex	1	4	0
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas	1	4	0
Sulfate, total [as SO4]	0	1	0
Whole effluent toxicity - retest #1	7	0	0
Whole effluent toxicity - retest #2	7	0	0

Inspections, violations and enforcement

2Single-event violations

Date	What EPA recorded	Agency
April 20, 2023	Permit Violations - Violation Specified in Comment	ST6
October 26, 2017	Permit Violations - Violation Specified in Comment	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0121762.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TX0121762.

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Nearby on the register

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

This public-records page covers the NPDES discharge permit TX0121762 for BASTROP ENERGY CENTER in Cedar Creek, TX, held by BASTROP ENERGY PARTNERS LP, with permit status listed as administratively continued and a discharger class of Major. The page reports 16 pollutants under a numeric limit and 5 pollutants with an effluent exceedance, and it cites a permit issued October 30, 2019 and expiring October 30, 2024 in EPA's file, with the receiving water listed as COLORADO RIVER BELOW LADY BIRD LAKE and the subwatershed as Coleman Branch-Colorado River (HUC 120903010108).