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Bolsa Quartzite - Acid-Base Accounting Properties and Humidity Cell Testing Results

Document ID: 
012409
Year Published: 
2009
Summary: 

One focus of the geochemical testing program for the proposed Rosemont Copper Project in Pima County, Arizona has been the characterize the acid-base accounting (ABA) properties of the expected waste rock materials. Of the expected waste rock materials, the Bolsa Quartzite (Bolsa) is anticipated to comprise a small percentage (1.9%) of the total waste rock mass. Based on this percentage, only a single sample of Bolsa Quartzite was tested during initial 2007 geochemical testing program. The ABA results from this sample (VABH0608-01) indicated that the Bolsa could be classified as inert according to Arizona Department of Environmental Quality (ADEQ) criteria and therefore would not require additional testing (ADEQ, 1999; Tetra Tech, 2007).

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