Laserfiche WebLink
Connell Motors Work Plan Comment page 2 <br />2211 N. Wilson Way, Stockton. <br />MW-1D &10D may be installed as proposed if; <br />1 CPT lithological data verifies a permeable hydrological unit <br />exists at the depth proposed and, <br />If CPT chemical data indicates that contaminated permeable <br />units OTHER THAN the 95'-100' bgs unit that will require an <br />additional and separate monitoring well are NOT present and, <br />If it can be shown that the installation of four (4) or more <br />separate or dual-cased, 1"or 2"-PVC casing monitoring wells <br />are more cost-effective than installing a single, multi- <br />chambered, polyethylene casing monitoring well that is <br />capable of providing up to seven separate screened intervals <br />(depths) in a single bore hole. <br />Selected soil samples and new monitoring well groundwater <br />samples shall be additionally sampled for total lead, methanol, and <br />ethanol. Two consecutive 'non-detect' quarterly groundwater- <br />sampling events at acceptable QA/QC and detection limits could <br />qualify a well for discontinuing that analysis, if requested. <br />REASONS FOR DISAPPROVAL OF THE WORK PLAN [H&S 25299.37, <br />subd(c)(3)]: <br />None. <br />DATED: December 12, 2002. BY: <br />Michael J. Infur HS (209) 468-3454 <br />[ X ] Faxed to consultant on: /-4240