Clean Water Act discharge permit · NPDES AKR06AB33

CALDER MINE, Shakan, AK: NPDES AKR06AB33 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

CALDER MINE, held by Mike Lehman - Columbia River Carbonates, holds NPDES permit AKR06AB33. EPA’s file records it issued April 17, 2020 and expiring March 31, 2025.

CALDER MINE, Shakan, Alaska: Coverage under a general permit AKR06AB33, held by Mike Lehman - Columbia River Carbonates; Industrial stormwater; Effective; issued April 17, 2020, term to March 31, 2025, by Alaska Department of Environmental Conservation.

Solids, total suspended: 0 limits, 19 violations of any kind, 0 effluent exceedances.

Alaska holds 246 Industrial stormwater coverages of this permit type in EPA’s file; 52 were issued before AKR06AB33.

Coverages issued nearest AKR06AB33

January 22, 2019: SYSCO ALASKA INC, Anchorage, AKR06AF88, held by Sysco Alaska, Inc.
February 19, 2019: SILVER BAY SEAFOODS, LLC-KODIAK, Kodiak, AKR06AF77, held by Silver Bay Seafoods
March 12, 2019: SOUND QUARRY INC, Nome, AKR06AF94, held by Sound Quarry Inc.
October 10, 2019: NOATAK RIVER GRAVEL MINE-NIMIUK PT GRAVEL MINE, Kotzebue, AKR06GA40, held by contact
October 22, 2019: SILVER BAY SEAFOODS FALSE PASS MSGP, False Pass, AKR06GA10, held by Silver Bay Seafoods
May 1, 2020: KRM QUARRY, Ketchikan, AKR06AB73, held by Brian Maller
May 1, 2020: NUTRIEN US LLC, Kenai, AKR06AC02, held by Fred Werth - Agrium Kenai Nitrogen Operations
May 1, 2020: ALASKA AEROFUEL INC., Fairbanks, AKR06AF42, held by Tim Hill - Alaska Aerofuel Inc.
May 6, 2020: KLONDIKE CONCRETE, Chugiak, AKR06AD09, held by Jeff Weed - Klondike Concrete
May 8, 2020: KENAI PIPE LINE FACILITY, Kenai, AKR06AD01, held by Bruce Jackman - Tesoro Alaska Company LLC

CALDER MINE among its neighbors

Its county holds 44, 0 of them major permits; AKR06AB33 is a minor permit.

Other permits in the county

ALASKA ISLAND ADVENTURES LODGE, Ketchikan: AKG572100, minor permit, permit term to September 30, 2022
CALDER LTF, Whale Pass: AKG700038, minor permit, discharging to SHAKAN STRAIT 7, permit term to November 30, 2013
CAMBRIA GOLD MINES SAND AND GRAVEL QUARRY ALASKA, Hyder: AKR06GC55, minor permit, permit term to March 31, 2025
CAPE MUZON BARGE WWTF, Ketchikan: AKG572102, minor permit, discharging to Niblack Anchorage, permit term to September 30, 2022
COFFMAN COVE, CITY OF, Coffman Cove: AK0050920, not classed, discharging to KASHEVAROF PASSAGE/CLARENCE ST
CRAIG BULK PLANT, Craig: AKR06AC49, minor permit, permit term to March 31, 2020
CRAIG SEAFOOD PROCESSING, Craig: AK0053562, not classed, discharging to KLAWOCK INLET
DAWSON MINE, Hollis: AKR06H00D, minor permit, permit term to March 31, 2025
EAST TWELVEMILE LTF, Hollis: AKG701004, minor permit, discharging to TWELVE MILE ARM 1, permit term to November 30, 2013
EL CAPITAN LODGE WWTF, Craig: AKG572017, minor permit, permit term to December 31, 2027

Identity

Facility as filed	CALDER MINE
Permittee as filed	Mike Lehman - Columbia River Carbonates
NPDES ID	AKR06AB33
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	April 17, 2020
Expiration date	March 31, 2025
Issuing agency	Alaska Department of Environmental Conservation
Address	Shakan, AK 99950

Effluent limits and exceedances

1Pollutants on file
0Under a numeric limit
1With a violation of any kind
0With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	0	19	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AKR06AB33.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES AKR06AB33.

Inspections

EPA’s inspection file holds no inspection for NPDES AKR06AB33.

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 AKR06AB33.

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Nearby on the register

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

The CALDER MINE permit, held by Mike Lehman - Columbia River Carbonates, sits among 7 storm water industrial permits in its county, and 14.3% of those were issued before it. Across those same 7 permits, 57.1% carry a violation on file, while this permit lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.