|Site ID: 4418||Site Name: Oregon Bonanza Mine||CERCLIS No:|
|County: Josephine||Region: Western|
|Other location information:||(10-18-05;KLS/SAS) The former Oregon Bonanza Mine Site is located in the Lower Applegate Area Mining District at an elevation of approximately 2,100 to 2,300 feet above mean sea level. Approximately 1,300 feet of mine workings were located on the south side of the Powell Creek drainage just over 3 miles north of Williams in Section 16 of Township 38 South, Range 5 West in Josephine County (Figure 1 and 2). Eighty acres of land were patented and the tax lot is currently zoned forest commercial (FC).|
|Investigation Status:||Suspect site requiring further investigation|
|Brownfield Site: No||NPL Site: No||Orphan Site: No||Study Area: No|
|Property:||Twnshp/Range/Sect: 38S , 5W , 16||Tax Lots: 001200|
||Site Size: Approx. 80 acres|
|Other Site Names:|
|General Site Description:|
|Site History:||(10-18-05;KLS/SAS) The early history of the mine is unreported. In 1936, the property was purchased by R.C. Hanford and associates from Edward Layton. In 1939, the Powell Creek Mining Company took possession of the mine [Oregon Metal Mines Handbook, 1951]. From 1936 through 1940, the mine was operated continuously with roughly 1,300 feet of underground workings, including shafts. The equipment on site included a compressor, a drifter, a stoper, a hoist, a blower with air pipe, a gas engine, a ½ ton mine car, 2 pumps, a compressor house and a shed. The historical reports did not mention the presence of a stamp mill; the ore was reportedly hand sorted and shipped to a mill at the nearby Humdinger Mine. By 1940, the mine buildings were in ruin and the adits were caved in [Gold and Silver in Oregon, 1968].|
|Manner and Time of Release:|
|Hazardous Substances/Waste Types:|
|Status of Investigative or Remedial Action:||
(10-18-05;KLS/SAS) Based on the available information for the former Oregon Bonanza Mine, DEQ finds that further action is necessary. DEQ recommends that an expanded preliminary assessment (XPA) be conducted. The XPA should include, but not necessarily be limited to, a site inspection and evaluation of:
• the nature and extent of mining wastes including the types and concentrations of metals in the waste rock pile and the drainage pit; and
• the potential future use of the property and potential risks to human health or the environment such as exposure to contaminated soil.
The XPA should include sampling of surface soil and mine wastes. Samples should be analyzed for metals including arsenic, lead, and iron as well as PCBs and petroleum products. Other analyses may also be warranted.
The priority for further action at the Site is considered low based on the Site Assessment Prioritization System (SAPS) score.
|Substance||Media Contaminated||Concentration Level||Date Recorded|
|No information is available|
|Action||Start Date||Compl. Date||Resp. Staff||Lead Pgm|
|State Expanded Preliminary Assessment recommended (XPA) (Primary Action)||10/18/2005||10/18/2005||Kristy Sewell||SAS|
|View Full Report Showing Action History|
Key to Certain Acronyms and Terms in this Report:
You may be able to obtain more information about this site by contacting Kristy Sewell at the Western regional office or via email at firstname.lastname@example.org. If this does not work, you may contact Gil Wistar at (503) 229-5512, or via email at email@example.com or contact the Western regional office.