Attachment Ten


Hazardous Material Incidents

Asarco Silverbell--Marana, Arizona

 

Occurrence Date:

 19 October, 2006

Location:

 Marana, AZ
NRC Report Number:   815407

Source:

 Pipeline

Material:

 Raffinate

Severity:

 Medium

Quantity Discharged:

 90,000 Gallons

Quantity in Water:

 None

Body of Water Affected:

 N/A

Federal On-Scene Coordinator:

 EPA Region IX
Description:

On October 19, 2006 at 04:22 pm EDT the National Response Center received a report of a 90,000 gallon release of Raffinate; a mixture of 5.5 grams per liter of sulfuric acid and various metals. The release was due to equipment failure of a 24 inch mining pipeline. The incident occurred at 08:20 am MST on October 19, 2006 at the Silver Bell Mining site in Marana, Arizona. There were no reports of injuries, fatalities, or evacuations. No waterways were affected. The release has been secured and clean-up is underway. The Federal On Scene Coordinator is EPA Region IX.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Incident number:

  

03-066-J

Incident date:

11/23/02

Name:

Asarco-Silver Bell Mine

County:

Pima

Address:

25000 West Avra Valley Road

Marana

Date reported:

11/23/02

Response date:

N/A

Prop mgmt:

Private

Referred to:

N/A

Referral date:

N/A

Type:

Release

Chemical material:

Sulfuric Acid

Structure:

Overflow in containment pond

Fund amount:

Pvt/Unk

Quantity:

242,000 gallons