WATER SAPLING AND NEENTRY PRuCEDURE ASTER UIX= AND KING SHOTS lL. Purpose. The purpose of this appendix is to outline the pros cedur@ tobe followed in sampling and analyzing lagoon water pricr to and after-reentry of TG 132.3 ships tote ENTVETOX Lagoon. 2. Scope. gories, nansiy, The sampling problem falls into three general cate- a. Samples obtained by helicopters cn a regular schedule. b. Samples obtained by smal) craft on a regular schedule. Ce Samples of opportunity (1i.e., samples will be picked up sy TG 132.1 monitors on special survey or recovery operations). 3. It is presently planned to make the first area survey of the lagoon water by helicopter at H plus 7 hours, talking water samples at the surface and at « depth of 35 feet at the following locations: a. vide Passage, b. Deep Entrance. c. Berth Les, anchorage A (Prior to reentry to lagoon). d. Four samles on a line running from the northern tip of RUNIT Island westward to RIGILI. e. One sasple will be taken on a line from the coral head (Mack) toward zero point, at the loo ar/hr iseintensity line at 35 feet altitude, It is presently planned to repeat this helicopter survey at C800M and 1L600M each day until it is definitoly deteruined that no significant amount of radioactive material oxists in the lagocn waters. It is plamed to sanple from the surface and at depths of 3§ fet from > small boat in anchorages A and B, Samp.es are to be taken at -ach of the berths where ships are moored. In addition any special survey or re= covery partics which are gcing to an arca whore watcr samles will Se of interest will be roquestcd to obtain a watsr sa. le, be » After samplcs sre collected they will ov snalyz-d oLogical trailer located aboard the 2ENDCVA. Samples will in the be analyzod by evaporating and counting wiich will give a quantitative enalysis cnd by counting with an emersion type zeigcr tube mich will give a good cualitative analysis, 2Fol( a)