DRAFT as from the Lagoon on the ebbing tide will return on the suceeeding flood, ~ The 20% of the original highly conteninated wass which remained in the Lagoon will be swept WR along the Southern side of the Lagoon at a speed of about 0.2 knot, arriving in the vicinity of Rukoji channel in approximately 16 hours. Hers about 50% of this rermoining segment of "volume A" will be swept ann of the et 3 02 oO only 10% of “volume 4 retains in the Lag Treas © hy G ¥ iV hegoon through Rulsojl channel br the preveiling obo flow. sequent to shot time. Th... This ~ S “ = romneininsfe ven she ,14 Schoen WLia * Me eget Qo. aa fete aehooe Ca@traiced Rorunvarl eastward in the suosurface veturn fleov. 3 ema wae The vertisal mixing» coupled with the vertical shear in the horizontal currents, will proportional to the first pover of time, and a consosvent decrease in comeentration inversely proposcional to the Sirst rover of tine. This relationshin will no longer hold when the siga of the conCERENEtSa arcs bocones & significant fraction of the sise of the mae 34 7 te Ted. m1 ray et ee, 5 ee me Te, ons J gees, eae lagoon, since the lateralq boundaries will then becore imsortant. ena3¢ will carry the torainins contaminetion of “voluce a7 to the yegicn of upvelling eicng the NAN-H&® section of tie tustern reerse in about ten days. After this tine the contaminetion will be relatively uniform throughout the larcoon. If the test should ceceur at low tide, or in the four hour perioad just after lew t tide, the nefjority of the eciutarinated water 57 57 SB