What Poisons did ASARCO leave in the Paso del Norte Region from the YEARS of secret haz-waste burning??

The International JAC (La Paz Accord) committee passed a resolution asking for chemical testing in this region to determine background contamination amounts.   The community wants full public disclosure of what happened here.  The EPA said to the DOJ that ASARCO had illegally burned secret hazardous wastes for years.  We STILL do not have Dioxin data for this region - or polonium data (two chemicals common to smelters!). 

"AUSTIN, Apr 16, 2010 (El Paso Times - McClatchy-Tribune Information Services

via COMTEX) --...

Democratic candidate Bill White's campaign released a statement calling on Gov. Rick Perry to intervene in the dispute between Shapleigh and the Texas Commission on Environmental Quality....Shapleigh has said the documents could prove that the agency illegally met with Asarco representatives while considering the renewal of the company's air-quality permit."
http://www.tradingmarkets.com/news/stock-alert/ar_bill-white-joins-shapleigh-presses-for-asarco-files-916248.html

"BRIEF: Court rules Sen. Shapleigh may see Asarco documents"

"By TMC Net, April 15th, 2010 at 4:12 am - PERMALINK

(El Paso Times - McClatchy-Tribune Information Services via COMTEX) -- State Sen. Eliot Shapleigh is entitled to see certain communications between the Texas Commission on Environmental Quality and Asarco, the state Third Court of Appeals has ruled."
http://admin.news.mining.com/2010/04/15/brief-court-rules-sen-shapleigh-may-see-asarco-documents/

What would be in those documents that the public cannot see?