constrained by several external influences. Its revision was dictated by the impact on the typhoon-related delay and of certain logistics factors of which all concerned are now aware. It must be understood that even in the original schedule for the field survey, it was not anticipated that the soil survey results could have any timely and meaningful impact upon cost estimating by DNA in the February 1973 timeframe. There were, numerous discussions on Kwajalein with the DNA engineering survey personnel. DNA was assured at that time that NV would continue to support the engineering survey on whatever schedule DNA might adopt. The revision of the schedule for the radiological survey was an attempt to maintain momentum and assure utilization of the committed helicopter support. The program as outlined recognizes that the survey is now decoupled from Palumbo and, to all intents and purposes, from PACE. Thus the window for field operations is less constrained and more optimum scheduling now is possible considering impact upon base support. The program also puts the hazardous and most physically demanding soil and biota program at a time when improving rather than deteriorating weather may be expected. November 1972