Laserfiche WebLink
REV: 12-02-2021 VR <br />In accordance with the DTSC soil vapor sampling guidance, Consultant recommends <br />that a waiting period of approximately 5 days be observed prior to soil vapor sampling <br />after a “significant rainfall event”. If a “significant rain event” occurs, Consultant will <br />contact the City prior to any delay of the proposed sampling activities. <br />No or low-flow conditions are not encountered during soil gas sampling; if so, soil <br />samples maybe analyzed in lieu of soil gas samples. <br />Groundwater is present at expected depths of 5 to 10 feet bgs, based on prior sampling <br />at the Site, and recharge rates will allow for sample collection. <br />No concrete coring is required (typically not necessary for surfacing less than 6 inches <br />thick). <br />Level D personal protective equipment (PPE) is the maximum necessary. <br />Consultant will restore the boring location surfaces with fast-setting concrete or asphalt <br />patch. <br />Consultant is not responsible for damages to underground or aboveground utilities, for <br />unmarked or mismarked utilities or other features, or for damage that occurs to such <br />utilities or features. The City is responsible for providing information to Consultant <br />regarding the location of intra-site utilities. <br />Consultant is not responsible for delays or scope limitations caused by property access <br />issues; equipment, or analytical unavailability or delays; regulatory or permitting <br />agencies; difficult subsurface conditions; weather; or other acts or conditions outside of <br />Consultant’s control. <br />Investigation derived waste, if generated, will remain onsite. Consultant will utilize <br />techniques that limit the wastes generated. Disposal costs are not included. Upon <br />receipt of analytical data, and City request, Consultant can provide waste profiling <br />assistance and disposal estimates. <br />This contract includes drilling a total of approximately 72 feet. If additional drilling is <br />requested over this amount in order to collect additional sample(s), a fee of $ 300.00 will <br />be charged for each additional 10 feet of drilling, or portion thereof, within the allotted <br />time. <br />The samples will be analyzed with a standard 7 to 10 business day turnaround time <br />(TAT), unless expedited investigation is requested, in which case 3 to 4 day TAT will be <br />provided, if possible. <br />Upon receipt of laboratory data, additional samples may be analyzed, if collected and <br />placed on hold, at the request of the City for additional fees. <br />Requests for insurance certificates, access agreements, and other site-specific <br />documentation required by City or Site owner/tenant must be provided to AEI at the time <br />of authorization to avoid delays. <br />This project has been designed to investigate whether a release of the specified <br />materials has occurred in the areas to be tested; it has not been designed to determine <br />the extent of such a release, if one exists, or to investigate other areas or other <br />contaminants than those specified. If impacts are identified, the investigation scope <br />included herein may not be sufficient to evaluate the extent and magnitude of <br />environmental impacts. Additional sampling and/or laboratory analysis beyond the <br />proposed scope may be required to characterize the extent and magnitude of <br />ATTY/AGR.2021.314/AEI Consultants (Page 14 of 15)