the whole of Elmer in the following manner: The assistant will drive along the roads while the monitor holds a survey meter over the side of the vehicle at seat level. The monitor will record readings at road junctions, intersections and corners, principal structures, and at such other points deemed aecessary. If there 18 indication of local hot spots, the monitor will make such off-stréet surveys considered necessary to locate them. Upon completion of the survey a general radiological-condition report will be made to RIC via helicopter radio. This survey will be repeated daily until Elmer is reentered. Post reentry surveys will be made as directed, 0) Fred. A survey similar to that on Elmer will be made daily on Fred until reentry. The %-ton truck will be furnished by CTG 132.2 and will be parked at the airstrip. Upon reentry on Fred the radiological responsibility of that island returns to CTG 132,2, (c) Other Islands, Reentry surveys of other islands will be made on a priority basis, which is dependent on the need to reenter. Instructions as to transportation, nature and extent of survey, and means of communication will be given the monitor at the time the mission is dispatched by the Control Officer. C.13.5 Records and Reporting All ground monitors will record their data on record forms (Sec. C.11). The data will be reported to RIC at the earliest practicable time. Normally, Rad-Safe reports will be transmitted via helicopter or boat-pool radio networks urftil telephone communication is restored. Where a combination of water and vehicular transportation is required, such as an LCU (or LCM) and a DUKW (or truck), two SCR 300’s will be used for vehicle-to-boat communications. Data will be relayed from shore to boat to RIC only in emergencies. Reports transmitted by radio will be made in the approved brevity code for TU 7. To mirimize exposure, monitors will normally complete the survey and transmit reports on leaving the contaminated area, A record sheet will be turned in to the Control Officer on completion of the trip. C.13.6 Protective Clothing All personnel entering contaminated areas will wear the prescribed protective clothing consisting of coveralls, shoes, socks, bootees, gloves, and cap, A respirator will be covered and worn when dusty conditions are likely to be encountered. Collars and cuffs will be buttoned, and gloves will be pulled over the cuffs. Contaminated bootees will not be worn aboard the helicopter. As the monitor enters the helicopter, he will remove the bootees and discard them. Sufficient bootees will be carried to provide a clean pair for each time a person must step on the ground. C.14. STANDARD OPERATING PROCEDURE FOR AERIAL SURVEY C.14.1 General it is contemplated that aerial surveys of the ground contamination on all the islands of Erdiwetok Atoll will be made very soon after the Mike and King shots and at frequent intervals thereafter. The results of these surveys will determine when ground-survey and recovery teams’ may safely enter each island. An additional purpose in making the aerial surveys is to develop, under Project 5.4b, a practical system for making rapid aerial surveys of ground contamination which can be used by troops in the field. C.14.2 Fersonnel and Equipment The serial survey will be macde2 from a helicopter with a T1B survey meter for measuring radiation intensities. The aerial-survey officer will sit next to the pilot, and an instrument man will sit in the passenger space below. Each will carry a clip board with mimeographed datarecording sheets. The survey officer will carry aerial photographs of all islands to be surveyed. 74