Clean Water Act discharge permit · NPDES IDR1000RZ

CARTWRIGHT RANCH, Boise, ID: NPDES IDR1000RZ 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

CARTWRIGHT RANCH, held by Toll Bros Inc, holds NPDES permit IDR1000RZ. EPA’s file records it issued November 3, 2017 and expiring February 15, 2022.

CARTWRIGHT RANCH, Boise, Idaho: Coverage under a general permit IDR1000RZ, held by Toll Bros Inc; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued November 3, 2017, term to February 15, 2022, by U.S. EPA.

Idaho holds 3,630 Construction stormwater coverages of this permit type in EPA’s file; 10 were issued before IDR1000RZ. Toll Bros Inc holds 3 permits in Idaho.

Other permits held by Toll Bros Inc

STERLING RANCH, Kuna: IDR1000SM, issued November 17, 2017
BICENTENNIAL FARM, Meridian: IDR10012B, issued April 17, 2018

Coverages issued nearest IDR1000RZ

June 15, 2017: HARVEST HILLS ADDITION PHASE 1, Moscow, IDR1000FV, held by Harvest Hills Development Corp.
June 28, 2017: KOOTENAI RIVER FLOODPLAIN RECONNECTION PROJECT - NIMZ RANCH CENTRAL QUADRANT, Bonners Ferry, IDR10I00D, held by Kootenai Tribe of Idaho
August 22, 2017: LOGOS SCHOOL, Moscow, IDR1000M3, held by Logos School
September 6, 2017: CASPIAN SUBDIVISION NO 1, Meridian, IDR1000N8, held by DB Development, LLC
October 5, 2017: IDAHO YOUTH RANCH - TREASURE VALLEY RANCH IMPROVEMENTS, Caldwell, IDR1000PI, held by Granite Excavation, Inc.
November 17, 2017: STERLING RANCH, Kuna, IDR1000SM, held by Toll Bros Inc
December 4, 2017: SNOQUALMIE RIVER NO. 1, Eagle, IDR1000TR, held by White Sturgeon LLC
December 4, 2017: SNOQUALMIE FALLS NO. 9, Eagle, IDR1000TX, held by White Sturgeon LLC
February 12, 2018: MASON CREEK SUBDIVISION, Nampa, IDR1000XA, held by Prestige Homes, Inc.
February 28, 2018: REDFISH LAKE TO STANLEY TRAIL, ID FS SAW T 2017(1), Stanley, IDR1000YW, held by FHWA - Western Federal Lands Highway Division

CARTWRIGHT RANCH among its neighbors

EPA’s permit file holds 32 discharge permits in the Currant Creek-Dry Creek subwatershed (HUC 170501140103), IDR1000RZ among them. Its county holds 668, 5 of them major permits; IDR1000RZ is a minor permit.

Other permits in the Currant Creek-Dry Creek subwatershed (HUC 170501140103)

ADA COUNTY LANDFILL TOPSOIL STRIPPING PROJECT 2025, Boise: IDR10C1Q1, minor permit, discharging to Stewart Gulch, permit term to February 9, 2027
BRIGHTON DEVELOPMENT INC - NEVILLE RANCH #1 - CARTWRIGHT RANCH, Boise: IDR12G241, not classed, discharging to UNKNOWN
BROKEN HORN, Boise: IDR10C1JI, minor permit, discharging to Dry Creek, permit term to February 9, 2027
CARTWRIGHT BUILDING B, Garden City: IDR10031C, not classed
CARTWRIGHT RETAIL BUILDING, Garden City: IDR10031D, not classed
CIMARRON SPRINGS LOT 1 BLOCK 1, Boise: IDR10C0IZ, minor permit, discharging to Dry Creek (WOTUS), permit term to February 9, 2027
DANIELS CREEK, Boise: IDR10C13M, minor permit, discharging to Dry Creek, permit term to February 9, 2027
DRY CREEK PHASE 5, Boise: IDR1002HC, minor permit, permit term to February 15, 2022
DRY CREEK RANCH PHASE 11, Boise: IDR10C21J, minor permit, discharging to Dry Creek, permit term to February 9, 2027
DRY CREEK RANCH SUBDIVISION #9, Boise: IDR10C1ZO, minor permit, discharging to Dry Creek, permit term to February 9, 2027

What the register holds for CARTWRIGHT RANCH: its NPDES ID, its permit type and status, its dates, its address in Boise, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR1000RZ.

Identity

Facility as filed	CARTWRIGHT RANCH
Permittee as filed	Toll Bros Inc
NPDES ID	IDR1000RZ
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
Program	Construction stormwater
Issued	November 3, 2017
Expiration date	February 15, 2022
Issuing agency	U.S. EPA
Address	Boise, ID 83714
Subwatershed	Currant Creek-Dry Creek (HUC 170501140103)

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 IDR1000RZ.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR1000RZ.

Inspections

EPA’s inspection file holds no inspection for NPDES IDR1000RZ.

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 IDR1000RZ.

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, IDR1000RZ.

Start the watch

How we handle your data → Privacy

Nearby on the register

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

Of the 561 storm water construction permits in Ada County, 0.0% have a violation on file. Of the 451 storm water construction permits in Ada County, which include CARTWRIGHT RANCH, 0.2% were issued earlier than this permit. The Currant Creek-Dry Creek subwatershed holds 32 NPDES permits, CARTWRIGHT RANCH included.