Laserfiche WebLink
3.5 Other Laboratory Testing <br />Other testing will be as follows: <br />Groundwater samples from existing site monitoring wells will be tested for chemical <br />parameters critical to the success of ambient or stimulated biodegradation. These <br />parameters will include nitrate, chlorite, sulfate, ferrous and total iron, alkalinity, and <br />dissolved gasses using methods 300.0, SM 3500 Fed, 6010B, 310.1 and SW3810, <br />respectively. pH, ORP and conductivity will be measured at the time of sample <br />collection. <br />• Groundwater samples from existing site monitoring wells will be tested for dissolved <br />metals contents to evaluate whether mobilization of metals may become a critical <br />factor in selecting or designing a groundwater remediation strategy. The metals will <br />include arsenic (As), chromium (Cr) and selenium (Se) (Methods 6010B). <br />• Soil and water samples for total organic carbon (415.2 and Walkley-Black). These <br />data will be useful in evaluating the potential oxygen demand of subsurface soils as <br />well as the ambient carbon content of groundwaters. <br />UserName or Department-Z:LsacDM0051Pg188018800391A5ad.doc 3-4 <br />