Clean Water Act discharge permit · NPDES AZC112300
PLATEAU CORRIDOR, AZ: NPDES AZC112300 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
PLATEAU CORRIDOR, held by Stronghold Engineering Incorporated, holds NPDES permit AZC112300, which discharges to Garden Creek | Headwaters - Pipe Creek @ 36°5. EPA’s file records it issued August 29, 2025 and expiring August 28, 2030.
PLATEAU CORRIDOR, Arizona: Coverage under a general permit AZC112300, held by Stronghold Engineering Incorporated; Effective; issued August 29, 2025, term to August 28, 2030, by ADEQ; discharges to Garden Creek | Headwaters - PIPE CREEK @ 36°5.
Other permits held by Stronghold Engineering Incorporated
- SOUTH GATE LAYDOWN YARD: AZC099069, issued June 5, 2023
- GRAND CANYON - SOUTH RIM DWTP: AZC099070, issued June 5, 2023
- PHANTOM RANCH WATERLINE: AZC100760, issued October 20, 2023
- BRIGHT ANGEL PIPELINE: AZC100761, issued October 20, 2023
- GARDEN CREEK: AZC106184, issued November 22, 2024
- BRIGHT ANGEL CAMPGROUND: AZC107115, issued January 22, 2025
- PLATEAU CORRIDOR: AZC107116, issued January 22, 2025
- PLATEAU PEAK / PIPE CREEK PIPELINE: AZC107435, issued February 11, 2025
- USDOI NPS - PETRIFIED FOREST NATIONAL PARK, Petrified Forest National Park: AZC112295, issued October 3, 2025
- SOUTH GATE LAYDOWN YARD: AZC112299, issued August 29, 2025
PLATEAU CORRIDOR among its neighbors
EPA’s permit file holds 6 discharge permits in the Trinity Creek-Colorado River subwatershed (HUC 150100020102), AZC112300 among them.
Other permits in the Trinity Creek-Colorado River subwatershed (HUC 150100020102)
- BRIGHT ANGEL PIPELINE, Unknown: AZC100761, minor permit, permit term to June 30, 2025
- GARDEN CREEK, Unknown: AZC106184, minor permit, permit term to June 30, 2025
- PLATEAU CORRIDOR, Unknown: AZC107116, minor permit, permit term to June 30, 2025
- PLATEAU PEAK / PIPE CREEK PIPELINE, Unknown: AZC107435, minor permit, permit term to June 30, 2025
- PLATEAU PEAK / PIPE CREEK PIPELINE, Unknown: AZC112301, minor permit, discharging to Garden Creek | Headwaters - PIPE CREEK @ 36°5, permit term to August 28, 2030
What the register holds for PLATEAU CORRIDOR: its NPDES ID, its permit type and status, its dates, its address, Arizona, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC112300.
Identity
| Facility as filed | PLATEAU CORRIDOR |
|---|---|
| Permittee as filed | Stronghold Engineering Incorporated |
| NPDES ID | AZC112300 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 29, 2025 |
| Expiration date | August 28, 2030 |
| Issuing agency | ADEQ |
| Address | AZ 92571 |
| Receiving water | Garden Creek | Headwaters - PIPE CREEK @ 36°5 |
| Subwatershed | Trinity Creek-Colorado River (HUC 150100020102) |
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 AZC112300.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC112300.
Inspections
EPA’s inspection file holds no inspection for NPDES AZC112300.
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 AZC112300.
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, AZC112300.
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.