Rh te ee Oh TSRlPohl a ee me PART Si!, CHAPTER 11 11.10 Vehicles leaving contaminated areas were _ monitored and decontaminated when the radiation levels were greater than 7 mr/hr gamma only, or 500 cpm alpha on the outside, or 7 mr/br gamma plus beta, or 500 cpm alpha on the inside. 11.11 Personnel leaving contaminated areas were monitored and decontaminated when levels were greater than 7 mr/hr gamma plus beta, or 55 cpm alpha for outer clothing, or greater than 1 mr/hr or 100 cpm on the skin or underclothing. 11.12 Construction activities in RADEX areas were accomplished at the discretion of CTG 7.5 and the AC/S, E-7. ~ OBJECTIVES 11.13 The objective and mission of Rad-Safe operations and support services were as follows: a. To turn over to TU-6, TG 7.1, the responsibility of Rad-Safe operations for the: duration of the Operation; b. To comply with all JTF-Seven directives and requirements relative to radiation safety; c. To provide buildings and equipment for the Rad-Safe Centers; d. To provide laundry facilities for decontaminating clothing; e. To provide the facilities for decontaminating personnel, vehicles, and equipment; f.. To conduct training courses to qual- the exchange of film badges for all TG 7.5 personnel. 11.15 IBM cards corresponding to numbered film badges were stam using the individual identification plates at the time the film badge was issued. Using the IBM cards, H&N maintained the records and tabulated the individual dosage of all TG 7.5 personnel and prepared the following reports: Daily Dosage Report Daily over 2r Report Daily over 4x Report Bimonthly Summary Report Monthly Report of History of all Film Badges Issued ; Quarterly Summary Report The summary report at the end of the Operation listed accumulated gamma exposures for 3464 TG 7.5 personnel. GAMMA EXPOSURES 11.16 Following an unexpected fallout over Sites Elmer and Fred resulting from the FIR and KOA detonations on 12 and 13 May, it became necessary to request that the guide of 3.75r for a 13-week period be increased and the 5.0r for the Operation be raised to 10.0r for 35 key H&N personnel whose absence from EPG would have seriously handicapped the Operation. This fallout produced an additional radiation dose to the end of the Operation ranging from 100 to 1500 mr, depending upon the length of time a person remained at those sites. The re- ify Rad-Safe monitors for TG 7.5 quest for increasing the guide limit for these individuals was approved by CJTF-Seven. g. To provide a pool of qualified monitors to support Contractor operations; 11.17 Of the total of 3464 TG 7.5 personnel listed on the summary report for Operation HARDTACK, the exposures can be broken down as follows: h. To maintain the records of radiation exposure for all TG 7.5 personnel; an NUMBER PERCENT OF IN DOSAGE PERSONS RANGE operations; i. To assume the responsibility for RadSafe services at the completion of . the Operation. FILM BADGE PROCEDURES 11.14 All personnel within EPG were provided with an addressograph identification plate and a film badge. These badges were attached to and worn with the security badge at all times. The badges were exchanged bimonthly or upon return from a mission into a contaminated area. The AEC Contractor was responsible for the issuance of identification plates and for DOSAGE No Dosage 676 19.5 0-499 mr 493 14.2 500 - 999 mr 378 10.9 1000 - 1999 mr 1330 38.4 2000 - 2999 mr 472 13.6 3000 - 3750 mr 78 2.3 3751 - 5000 mr 37 1.1 0 __0 3464 100.0 Over 5000 mr Total