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Clean Water Act discharge permit · NPDES TXR1507PQ

SHAMROCK ENERGY STORAGE, Ozona, TX: NPDES TXR1507PQ discharge permit, effluent exceedances, inspections, penalties

SHAMROCK ENERGY STORAGE, held by Shamrock Energy Storage, LLC, holds NPDES permit TXR1507PQ, which discharges to Upper Pecos River. EPA’s file records it issued January 19, 2024 and expiring March 4, 2028.

SHAMROCK ENERGY STORAGE, Ozona, Texas: Coverage under a general permit TXR1507PQ, held by Shamrock Energy Storage, LLC; Construction stormwater; Effective; issued January 19, 2024, term to March 4, 2028; discharges to UPPER PECOS RIVER.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 5,552 were issued before TXR1507PQ.

Coverages issued nearest TXR1507PQ

SHAMROCK ENERGY STORAGE among its neighbors

EPA’s permit file holds 2 discharge permits in the Bill West Draw-Howard Draw subwatershed (HUC 130700110107), TXR1507PQ among them. Its county holds 9, 0 of them major permits; TXR1507PQ is a minor permit.

Other permits in the Bill West Draw-Howard Draw subwatershed (HUC 130700110107)

  • SHAMROCK WIND, Ozona: TXR1523PH, minor permit, discharging to UPPER PECOS RIVER, permit term to March 4, 2028

What the register holds for SHAMROCK ENERGY STORAGE: its NPDES ID, its permit type and status, its dates, its address in Ozona, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1507PQ.

Identity

Facility as filedSHAMROCK ENERGY STORAGE
Permittee as filedShamrock Energy Storage, LLC
NPDES IDTXR1507PQ
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJanuary 19, 2024
Expiration dateMarch 4, 2028
AddressOzona, TX 76943
Receiving waterUPPER PECOS RIVER
SubwatershedBill West Draw-Howard Draw (HUC 130700110107)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1507PQ.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1507PQ.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1507PQ.

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 TXR1507PQ.

Watch this permit

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

SHAMROCK ENERGY STORAGE, in Ozona, Crockett County, Texas, is one of 2 NPDES permits in the Bill West Draw-Howard Draw subwatershed, this one included. It is also one of 4 storm water construction permits on EPA's NPDES register in Crockett County, this one included. The permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance.