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130 Hunter Street Page 1 of 2 <br /> Vicki McCartney [EH] <br /> From: Dustyne Sutherland [djsutherland@treadwellrollo.com] <br /> Sent: Wednesday, April 13 , 2005 4:24 PM <br /> To: Vicki McCartney [EH] <br /> Cc: David Dixon ; jay .coffey@ci. stocktongov. com <br /> Subject: 130 Hunter Street <br /> Vicki, <br /> As we discussed today, I have prepared this email to address questions in your email attached below. <br /> Treadwell & Rollo will provide a final letter report that documents items 1 through 4 in your email . <br /> Marty Thorpe, a general contractor with State Hazardous Waste Certification, has been hired by the City <br /> to provide as needed services to handle potentially contaminated soil and groundwater on-site. We <br /> understand that they have already sampled the groundwater in tanks at the site, and will be sending us <br /> the information. We currently understand that contaminated groundwater will be disposed of at an off- <br /> site permitted treatment/recycling facility . <br /> Treadwell & Rollo will sample the potentially hazardous soil that has been stockpiled at the site. The <br /> current plan is to sample the soil according to a County approved protocol (I discrete sample per 100 <br /> cubic yards) to determine if the soil may be suitable for re-use at the site. As we discussed today, on <br /> Monday April i 8th, I will meet you at the site at 10 : 00 am to collect soil samples in your presence. I will <br /> call you Monday morning to confirm the time. David Dixon will be out of the office tomorrow and <br /> Friday, so please contact me with questions or comments. On Monday the 18th I can be reached on my <br /> cell phone at (510) 508-3436. <br /> Regards, <br /> Dustyne Sutherland <br /> Senior Staff Scientist <br /> Treadwell & Rollo Inc. <br /> 555 Montgomery St # 13 00 <br /> San Francisco, CA 94111 <br /> Phone : 415-394-8713 ext 283 <br /> djsutherland@treadwellrollo.com <br /> From : Vicki McCartney [EH] [mailtovmccartney@sjcehd.com] <br /> Sent: Tuesday, April 12, 2005 8 : 27 AM <br /> To: David Dixon <br /> Cc: Margaret Lagorio [EH]; jay.coffey@ci .stockton.ca.us <br /> Subject: 130 Hunter Street <br /> David , <br /> There is confusion concerning the role Treadwell and Rollo IT & R) has during the construction of the new parking <br /> garage at 130 North Hunter Street in Stockton, California. Specifically, what is T & R's role in identifying and <br /> disposing of contaminated soil and groundwater at this site? Is T & R going to prepare the final report that <br /> documents: <br /> 1 . The location and amount of contaminated soil excavated during drilling of the caissons? <br /> 2. The final location and amount of contaminated soil if left on-site, or amount disposed off-site? <br /> 3. How it was determined which borehole-extracted water should be sampled and analyzed ; the amount of <br /> contaminated groundwater extracted from specific caisson boreholes; and the concentrations of contaminants in <br /> 4/14/2005 <br />