RESOLUTION COPPER MINING (EAST PLANT OP)

Address

47206 N MAGMA NO. 9 SHAFT RD
SUPERIOR, AZ 85173
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County

PINAL County

Inspections

1 · last Dec 15, 2025

Total Penalties

$0

Registry ID

110071945380

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

1

Water (CWA)
Qtrs Non-Compliant

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program	Type	Violation Date	Return to Compliance	Status
cwa	Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater)	Dec 15, 2025	—	Open
cwa	Failure to properly install, initiate, or fully implement industrial stormwater controls	Dec 15, 2025	—	Open

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant	Violation	Reported	Limit	Exceedance	Period	Status
Copper, dissolved [as Cu]	DMR, Limited - Numeric Violation	0.01 mg/L	0.00	+125%	May 2026	Open
Copper, dissolved [as Cu]	DMR, Limited - Numeric Violation	0.11 mg/L	0.03	+274%	Oct 2025	Open
Copper, dissolved [as Cu]	DMR, Limited - Numeric Violation	0.04 mg/L	0.03	+26%	Oct 2025	Open

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