ANIMALS AND FOWL The concentration of radionuclides in pigs and chickens at the Atoll is dependent on how long the animals were on a specific island and whether or not they were penned or unpenned. The penned pigs were fed more table scraps, much of which originated in imported foods, and thus have a lower radionuclide concentration in their bodies than pigs that were unpenned, free roaming, and consuming more native foods, such as coconut, crabs, morning glory vine, and other vegetation. Not surprisingly, the '37cs and 90Sr concentration in pigs can vary considerably depending on how they are kept. Although the pigs can have a significant concentration of '3/’Cs in their soft tissue, locally raised pigs are consumed only on special Consequently, the average annual occasions. intake of locally raised pork is overall contributes in a small way to the estimated dose. low and As the 137¢s concentration is reduced in the local vegetation, the !37Cs concentration in pigs and chickens will also be expected to decline. GROUND WATER AND RAINFALL The major source of water for consumption and cooking purposes at the Atoll is rainwater collected from rooftops and stored in cisterns. This source of water is generally available a good portion of the year and has very | low concentrations of !37cs, 90Sr, 239+240py ang 24)am (Noshkin et al., 1977, 1981). If a long drought occurs, potable. then ground water may be used if it is | . The ground water on contaminated islands contains radionuclides in direct proportion to the concentration of the radionuclides in the soil. The higher the concentration of radionuclides in the soil, the higher will be their concentration in the ground water. The concentrations of !37cs, 905r, 239+240py, and @41Am in the ground water on Eneu Island are well below EPA recommended limits for drinking water, and the ground water is a suitable source of drinking water. In addition, because of the geologic structure of Eneu Island and the runoff from the runway and apron, there is a large supply of very high quality fresh water; the measured salinities are less than 100 ppm.