Laserfiche WebLink
DRAFT <br /> Geosptec <br /> consultants <br /> 5.2 Task Descriptions <br /> Task 1: Surveying <br /> A survey will be conducted to mark historical well suvey coordinate locations. <br /> Task 2: Hand and Backhoe Digging <br /> Once well locations are marked by a surveyor,they will be hand dug with a shovel to a depth of <br /> ft. If the wells cannot be located with hand clearing, a backhoe or similar equipment will be <br /> used to locate the wells. <br /> Task 3: Well Repairs <br /> Wells with damage within the top 4 feet below ground surface will be repaired if possible. <br /> Repairs may include raising well casing and replacing well boxes. <br /> Task 4: Well Destruction <br /> Wells that are damaged and unable to be repaired, are no longer needed, or are located in the <br /> planned rail line development will be destroyed by overdrilling using the hollow stem auger <br /> drilling method. <br /> Task 5: Well Installation <br /> Wells will be drilled and installed in accordance with the Well Installation Standard Operating <br /> Procedures for Rough and Ready Island. <br /> Task 6: Well Development <br /> Wells installed on site will be developed at least 48 hours after installation. <br /> Task Hazard Analyses (THAs) associated with these tasks are presented in Appendix B. <br /> 5.3 Chemical Hazards <br /> The classes of chemicals that are known or suspected to be present that may be encountered while <br /> performing site work include the following: <br /> • Benzene, toluene, ethylbenzene, xylenes (BTEX) <br /> • Chlorinated volatile organic compounds (VOCs) <br /> • Total petroleum hydrocarbon(TPH) <br /> • Pesticides, herbicides, and/or rodenticides <br /> • Metals (including naturally occurring arsenic, barium, mercury and lead) <br /> Controls for these hazards are presented in the THAs included in Appendix B.A summary of these <br /> chemical hazards is presented in Appendix C. <br /> Port of Stockton HASP 1 12.10..2020 <br />