Clean Water Act discharge permit · NPDES IDR1002YD

MASON CREEK LANDING SUBDIVISION NO. 3 & 4, Caldwell, ID: NPDES IDR1002YD 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

MASON CREEK LANDING SUBDIVISION NO. 3 & 4, held by Mason Creek Properties, LLC, holds NPDES permit IDR1002YD. EPA’s file records it issued February 21, 2021 and expiring February 15, 2022.

MASON CREEK LANDING SUBDIVISION NO. 3 & 4, Caldwell, Idaho: Coverage under a general permit IDR1002YD, held by Mason Creek Properties, LLC; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued February 21, 2021, term to February 15, 2022, by U.S. EPA.

Idaho holds 3,630 Construction stormwater coverages of this permit type in EPA’s file; 228 were issued before IDR1002YD. Mason Creek Properties, LLC holds 2 permits in Idaho.

Other permits held by Mason Creek Properties, LLC

MASON CREEK LANDING SUBDIVISION NO. 3 & 4, Caldwell: IDR10C0XT, issued January 10, 2022

Coverages issued nearest IDR1002YD

February 15, 2021: FEATHER COVE SUBDIVISION NO. 3, Nampa, IDR1002XU, held by Challenger Development, Inc.
February 15, 2021: KINGHORN PLACE SUBDIVISION NO. 2 & 8.26 LATERAL TILING, Nampa, IDR1002XV, held by Challenger Development, Inc.
February 16, 2021: WARRICK SUBDIVISION NO. 4, Meridian, IDR1002Y2, held by Callistoga Partners, LLC
February 18, 2021: ASCENT SUBDIVISION, Meridian, IDR1002Y5, held by T&M Holdings, LLC
February 19, 2021: HALF CFI, EAGLE RD & SH-44, Eagleq, IDR1002YA, held by Knife River Corporation, Mountain West Division
February 22, 2021: SCENTSY WAREHOUSE 4 - MERIDIAN, ID, Meridain, IDR1002YK, held by Engineered Structures, Inc.
February 23, 2021: LAKE HAZEL AND LOCUST GROVE ROADWAY IMPROVEMENTS, Meridian, IDR1002YO, held by Brighton Development, Inc.
February 23, 2021: LANEWOOD SUBDIVISION NO. 8, Eagle, IDR1002YP, held by Brighton Development, Inc.
February 23, 2021: CAZADOR SUBDIVISION PHASE 3 & 4, Kuna, IDR1002YQ, held by DB Development, LLC
February 23, 2021: SOUTHRIDGE SUBDIVISION PHASE 4, Meridian, IDR1002YR, held by DB Development, LLC

MASON CREEK LANDING SUBDIVISION NO. 3 & 4 among its neighbors

EPA’s permit file holds 360 discharge permits in the Mason Creek subwatershed (HUC 170501140407), IDR1002YD among them. Its county holds 377, 2 of them major permits; IDR1002YD is a minor permit.

Other permits in the Mason Creek subwatershed (HUC 170501140407)

10 MILE RETAIL, Meridian: IDR10037Z, not classed
1209 ANDY LANE TRUCK YARD, Caldwell: IDR1002I9, not classed
17270 NORTHSIDE BOULEVARD, Nampa: IDR10L0KV, not classed
22102 FRANKLIN BLVD & KARCHER RD INT, Nampa: IDR10L0E1, not classed
4-LOT FLEX BUILDING SUBDIVISION, Caldwell: IDR1002R2, not classed
500 LATERAL RELOCATION, Caldwell: IDR10026E, not classed
620 N. 39TH STREET NORTH BUILDING, Nampa: IDR10L07V, not classed
ABC ROOFING SUPPLY COMPANY, Nampa: IDR1000K1, not classed
ADAMS RIDGE APARTMENTS, Nampa: IDR10C27V, minor permit, discharging to Mason Creek, permit term to February 9, 2027
ADAMS RIDGE SUBDIVISION NO 7, Nampa: IDR10C0UC, minor permit, discharging to MIDDLE LATERAL, permit term to February 9, 2027

What the register holds for MASON CREEK LANDING SUBDIVISION NO. 3 & 4: its NPDES ID, its permit type and status, its dates, its address in Caldwell, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR1002YD.

Identity

Facility as filed	MASON CREEK LANDING SUBDIVISION NO. 3 & 4
Permittee as filed	Mason Creek Properties, LLC
NPDES ID	IDR1002YD
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	February 21, 2021
Expiration date	February 15, 2022
Issuing agency	U.S. EPA
Address	Caldwell, ID 83605
Receiving water impaired	303(D) Listed
Subwatershed	Mason Creek (HUC 170501140407)

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 IDR1002YD.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR1002YD.

Inspections

EPA’s inspection file holds no inspection for NPDES IDR1002YD.

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 IDR1002YD.

Watch this permit

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

0.0% of the 308 storm water construction permits in Canyon County have a violation on file. Canyon County records 308 storm water construction permits on EPA's NPDES register, and MASON CREEK LANDING SUBDIVISION NO. 3 & 4 is among them. Of the 269 storm water construction permits in Canyon County, including this permit, 1.5% were issued earlier than MASON CREEK LANDING SUBDIVISION NO. 3 & 4.