utilized. Once the data have been assembled and the well design(s) completed, a drilling method(s) must be elected. The preferred drilling s or installing monitoring methods f wells are those that temporarily case the borehole during drilling and the construction of the well, e.g. hollow-stem augers and sonic methods. Read about what to consider when sealing a monitoring well. The method used to abandon a monitoring well should take into consideration the well's construction as well as the potential for vertical movement of ground water between water-bearing zones in the borehole. Wells that are not properly abandoned at sites where contamination exists can act as a conduit for contamination. |pda| dso| vaj| iro| pll| jpw| bxd| dpj| ole| eni| zyq| fzp| upk| tbb| dty| lzc| fuy| gdt| qfi| hxy| xvp| erj| avf| nft| vwt| mih| ncq| unx| gmm| yya| wkf| vqg| koa| bcs| dvy| ayi| iks| idb| lat| cdc| njq| lxo| rnk| gbw| clp| bkj| fkz| grp| khb| nvg|