Objective 2. Water concentration Method ~ Surface-to-bottom profiles will be obtained by pumping 55 L water samp] Samples will be obtained from 18 stations in the lagoon and 18 static over the reef. Both the Whaler and LCU will be utilized. 50-5 gal bottom water samples and suspended sediment will be obtained in the Runit area, 3. Additional supplementary data A variety of indicator organisms wibe obtained by dredging the sedimen: and coral knolls in the lagoon from the LCU and Whaler. Daily plankton collections and invertebrates will complement this effort. Species of algae will be obtained from reef areas for analysis. required to assess relative concentration levels in the lagoon, - Miscellaneous activities The desalination plant will be studied, with emphasis on the fate of the sludge discharged from the plant. Samples to meet survey requirements = + alies caalonceenea iLut. Water 48-55 L water samples from the open lagoon and reef 50-5 gal bottom samples from the Runit area and craters. Sediment 100 core samples 2" and 3” diameter 200 grab samples 100 dredge samples ees 50 suspended sediment samples 50 Runit cores Biota 200 plankton samples 2) Invertebrates, including - RUIRMNRLHRSnRe: ¢>shees o>. meumahtinpentatgtomaee:+: ds wee 1) Sponges ’ Detailed vertical profiles of radic nuclide concentrations in 20 select cores will be determined. All othe samples will be rapidly scanned for relative activity levels and select samples quantitatively analyzed. Activity levels in vertical sectior Runit cores will be determined in about 50 samples. If similar areas are sampled, many individual tows will be combined fc analysis, especially if the .planktc yield is low, All samples will be rapidly scanned in the field and a selected number quantitatively anal on-continent., Specimens will be collected from ea] accessable reef areas. 400-500