Laserfiche WebLink
Stantec <br /> December 19, 2008 <br /> Page 3 of 6 <br /> Reference: Work Plan for Phase II Environmental Site Assessment,Tokay Tires (DEX#5130), 125 East Lodi <br /> Avenue, Lodi, CA <br /> As the drive casing and inner rods are advanced, soil is driven into a 1-5/8-inch diameter, three-foot-long <br /> sample barrel that is attached to the end of the inner rods. After being driven three feet, inner rods are <br /> removed from the borehole with a hydraulic winch. The tubes containing the soil samples will be removed <br /> from the drive sampler and retained for potential chemical analyses. Upon completion, each soil boring will <br /> be backfilled with a bentonite-grout mixture and the work area returned to pre-drilling conditions. <br /> Soil samples collected from each boring will be periodically monitored by a Stantec geologist for parameters <br /> including odor, staining, VOCs using a photo-ionization detector (PID), color, grain size, and moisture content. <br /> Soil will be described in accordance with the Unified Soil Classification System (USCS) and recorded onto <br /> boring logs, which will be included in the final Letter Report. Each sample for possible chemical analysis will <br /> be collected in either 1-1/2-inch diameter by six-inch long stainless steel tubes or a three-foot long Teflon TM <br /> sleeve, covered at each end with Teflon TM tape, capped with plastic end caps, labeled, and placed in an ice- <br /> filled cooler for preservation. Soil samples will be chosen for analysis after review of field and lithologic data. <br /> Selected soil samples will be submitted to Test America, a California-certified lab for analysis. Analytical <br /> methods will include TPHg, TPHd, and TPHo by Environmental Protection Agency (EPA) Method 8015, <br /> modified and VOCs by EPA Method 82606. <br /> Groundwater <br /> Groundwater samples will be collected to further assess Site conditions if groundwater is encountered within <br /> the above referenced depths. Depth discreet groundwater samples will be collected from each of the <br /> GeoProbek; borings by advancing a Hydropunch' (or similar) sampling device from within the outer drive <br /> casing to the desired depth, and collecting a sample using disposable tubing and a peristaltic pump. <br /> Selected samples will be labeled and analyzed, as referenced above for the soil samples. <br /> Waste Disposal <br /> Investigation derived residuals will be temporarily stored on-site in 55-gallon, DOT-approved drums, pending <br /> characterization and disposal. Stantec will coordinate with a licensed waste hauler to transport and dispose <br /> of the material at an approved facility. <br /> Technical Report <br /> A Technical Report will be prepared consisting of a description of the work performed, results, and <br /> conclusions regarding field activities, tabulated analytical data, a Site plan showing sampling locations, and <br /> boring logs. <br /> PROPOSED SCHEDULE <br /> Stantec estimates that the field tasks proposed in this Work Plan will be completed by January 9, 2009, <br /> providing that approval of the Work Plan is received by January 5, 2009 from the SJCEHD. <br /> We appreciate the opportunity to submit this Work Plan to SJCEHD, and trust that this document meets with <br /> your approval. If you have any questions or concerns, please contact the undersigned. <br />