Clean Water Act discharge permit · NPDES IDR10C18O
HAPPY VALLEY BATTERY STORAGE, Nampa, ID: NPDES IDR10C18O 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
HAPPY VALLEY BATTERY STORAGE, held by IMCO General Construction, holds NPDES permit IDR10C18O, which discharges to Indian Creek. EPA’s file records it issued January 10, 2022 and expiring February 9, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for HAPPY VALLEY BATTERY STORAGE: its NPDES ID, its permit type and status, its dates, its address in Nampa, Idaho, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR10C18O.
Identity
| Facility as filed | HAPPY VALLEY BATTERY STORAGE |
|---|---|
| Permittee as filed | IMCO General Construction |
| NPDES ID | IDR10C18O |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 10, 2022 |
| Expiration date | February 9, 2027 |
| Address | Nampa, ID 83687 |
| Receiving water | Indian Creek |
| Subwatershed | Lower Indian Creek (HUC 170501140507) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
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 IDR10C18O.
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 IDR10C18O.
Inspections
EPA’s inspection file holds no inspection for NPDES IDR10C18O.
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 IDR10C18O.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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, IDR10C18O.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 IDR10C18O there.
HAPPY VALLEY BATTERY STORAGE, Nampa, Idaho: Coverage under a general permit IDR10C18O, held by IMCO General Construction; Effective; issued January 10, 2022, term to February 9, 2027; discharges to Indian Creek.
Other permits held by IMCO General Construction
- HANKINS PUMP STATION #2, Twin Falls: IDR10C1HS, issued 2022-01-10
- NAMPA HEADWORKS, Nampa: IDR10C1M5, issued 2022-01-10
- HEMINGWAY BATTERY STORAGE (IMCO), Melba: IDR10C1RC, issued 2022-01-10
- IMCO CONSTRUCTION OFFICE, Boise: IDR10C1US, issued 2022-01-10
- WWTP IMPROVEMENTS, Star: IDR10C233, issued 2022-01-10
HAPPY VALLEY BATTERY STORAGE among its neighbors
358 discharge permits are in the Lower Indian Creek subwatershed (HUC 170501140507); IDR10C18O is one.
Other permits in the Lower Indian Creek subwatershed (HUC 170501140507)
- 11TH AVE S 2-WAY CONVERSION CITY OF NAMPA, Nampa: IDR10L0LN
- 11TH AVE S TWO-WAY CONVERSION, Nampa: IDR10L0LO
- 12TH-15TH 2ND-7TH ST. SOUTH WATERLINES REPLACEMENT, Nampa: IDR10C27N, minor, term to 2027-02-09
- 1908 SUNNY RIDGE, Nampa: IDR1001JD
- 1ST ST. & ROOSEVELT AVE. WATERLINE, Nampa: IDR1000GJ
- 2025 ARTERIAL & COLLECTOR CAPITAL MAINTENANCE, Kuna: IDR10C1UW, minor, term to 2027-02-09
- 203 AND 212 1ST AVE., Nampa: IDR10L0J9
- 21ST AVENUE MARRIOTT, Caldwell: IDR10C1IN, minor, term to 2027-02-09
- 24229 MIDDLETON RD, SH 55 TO FLAMINGO AVE, Nampa: IDR10L0LR
- 6TH STREET MULTI-PLEXES, Nampa: IDR1001D8
Nearby on the register
- Discharge permits in Nampa
- Every permit record in Nampa, A to Z
- Discharge permits in Idaho
- Every permit record in Idaho, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.
What this page shows
Among the 20 general permit coverages in Nampa, 0.0% carry a violation on file, and HAPPY VALLEY BATTERY STORAGE is counted in that group. The Lower Indian Creek subwatershed lists 358 NPDES permits, including this filing issued to IMCO General Construction. Among the 8 general permit coverages in Nampa, 0.0% were issued before this filing.