Please follow http://nwis.waterdata.usgs.gov/ca/nwis/gwlevels?multiple_site_no=341013117253901%2C341013117253902%2C341013117253903%2C341013117253904%2C341013117253905%2C341013117253906&group_key=NONE&sitefile_output_format=html_table&column_name=agency_cd&column_name=site_no&column_name=station_nm&format=html_table&date_format=YYYY-MM-DD&rdb_compression=file&list_of_search_criteria=multiple_site_no.

Please follow http://nwis.waterdata.usgs.gov/ca/nwis/gwlevels?multiple_site_no=341013117253901%2C341013117253902%2C341013117253903%2C341013117253904%2C341013117253905%2C341013117253906&group_key=NONE&sitefile_output_format=html_table&column_name=agency_cd&column_name=site_no&column_name=station_nm&format=html_table&date_format=YYYY-MM-DD&rdb_compression=file&list_of_search_criteria=multiple_site_no.