level 10 feet (3 meters) above the water surface was 0.025 Eko 0.075 R/hr. Staffing: One military and nine civilians, six from SRI, e from AMS, one from Raydist, and one from H&N, were associated wifh this project. Their exposures appear in Table 19. Exposures fof person- nel from other task groups appear in Tables 58, 86, and 90. Project Report: Reference 60. Project 3.3 -- Blast Effects on Tree Stand Agencies: U.S. Forest Service (USFS) Ballistic Research Laboratories Operations: (BRL) To determine blast effects on tree stands, natijral stands on Jelete, Lukoj, and Enidrik were used as indicators of effects. Be- cause Of expected contamination from BRAVO and ROMEO, all pi¥oject work was completed before BRAVO except arming of gauges. BRL (PiHoject 1.2b) installed self-recording, static, overpressure, and dynamic gauges. [pressure Participation was planned for KOON only, but the urfexpectedly large radius of éffects from BRAVO provided additional data Shots: BRAVO, KOON (Bikini). Radiation Exposure Potential: Possible exposure for those king post- shot inspection photographs of tree stands. Staffing: Two civilians, both from USFS, were associated with this project and received 3.040 and 2.825 R. Project Report: Reference 61. Project 3.4 -- Sea Minefield Neutralization by Means of a ' Surface-Detonated Nuclear Explosion Agencies: Operations: Bureau of Ordnance USS Shea, USS Reclaimer, USS Terrell County One hundred twenty-one inert sea mines were plafted in seven rows between 3,000 feet (914 meters) and 13,800 feet meters) from ground zero. ( 1, 206 Mines were laid on 10 to 13 Aprilfand on 185