Clean Water Act discharge permit · NPDES AZC099218
WESTWING 1B/2A ENERGY STORAGE, AZ: NPDES AZC099218 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WESTWING 1B/2A ENERGY STORAGE, held by Aes Es Westwing, Llc, holds NPDES permit AZC099218. EPA’s file records it issued June 14, 2023 and expiring June 30, 2025.
WESTWING 1B/2A ENERGY STORAGE, Arizona: Coverage under a general permit AZC099218, held by Aes Es Westwing, Llc; Administratively continued (past its expiration date and still in force until reissued); issued June 14, 2023, term to June 30, 2025.
WESTWING 1B/2A ENERGY STORAGE among its neighbors
EPA’s permit file holds 10 discharge permits in the White Peak subwatershed (HUC 150701020904), AZC099218 among them.
Other permits in the White Peak subwatershed (HUC 150701020904)
- DESERT BLOOM BESS, Unknown: AZC109276, minor permit, permit term to June 30, 2025
- HACIENDAS AT WHITE PEAKS, Unknown: AZC103828, minor permit, permit term to June 30, 2025
- HACIENDAS AT WHITE PEAKS, Unknown: AZC112463, minor permit, discharging to McMicken Wash, permit term to August 28, 2030
- JOMAX WRF, Peoria: AZ0024945, major permit, permit term to August 3, 2022
- JOMAX WRF, Peoria: AZMS66152, minor permit, permit term to March 9, 2016
- JOMAX WRF, Peoria: AZPT00012, minor permit, permit term to July 1, 2015
- NORTHPOINTE 2 (H-15, H-17, H-18), Unknown: AZC098721, minor permit, permit term to June 30, 2025
- NORTHPOINTE 2 (H-15, H-17, H-18), Unknown: AZC111456, minor permit, discharging to McMicken Wash, permit term to August 28, 2030
- VALEO, Unknown: AZC117079, minor permit, discharging to McMicken Wash, permit term to August 28, 2030
What the register holds for WESTWING 1B/2A ENERGY STORAGE: its NPDES ID, its permit type and status, its dates, its address, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC099218.
Identity
| Facility as filed | WESTWING 1B/2A ENERGY STORAGE |
|---|---|
| Permittee as filed | Aes Es Westwing, Llc |
| NPDES ID | AZC099218 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 14, 2023 |
| Expiration date | June 30, 2025 |
| Address | AZ 90630 |
| Subwatershed | White Peak (HUC 150701020904) |
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES AZC099218.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC099218.
Inspections
EPA’s inspection file holds no inspection for NPDES AZC099218.
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 AZC099218.
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, AZC099218.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.