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OAK RIDGE NATIONAL LABORATORY POST OFFICE BOX 2008 FOR W E US. DEPARTMEW OF ENLROV Oak Ridge National Laborrtory BOX No. A@/&@,V F# Post Office Box 2008 Oak Ridge, Tennessee 378314269 Notification of Planned Radiotracer Studies - Oak Ridge National Laboratory Building 1504 Laboratory Streams This letter noufiesthe Dcpartmmt of Energy ( D o n that reseruch personnel at Oak Ridge National Laboratory ( O W )p h to release s d amounts of radiotracers mto two expenmental laboratory streams u1 Building 1504 dunng four exsets of mjections. The laboratory Streams discharge ln approxrmately e q d proportions to six ponds southwest Of Buildmg 1504. whsch then overflow to the Northwest Tributary. The purpose of the study is to determrne the e f k t of loop ltu dd nutnent depletion on nutnent uptake and cyclmg. While th~srelease is not a wastewater discharge, pad the amount of radiotracers involved is very small. notification of the release to the Tennessee Department of Environmmtll and Each expenment will include the addition of 0.1 rmiiicune (mCi) of phosphorus-33 (P-33)as phosphate to both ex-a laboratory streams. Both strcams will receive one Injection dunng the scheduled week, and those ~njectlonswill be On different days dunng that week. Per DOE Order 5 4 0 . 5 , the DOE Denved Concentmoon Guideline (DCG) for P-33L 200 x lo4 mCiL and wll not be exceeded dunng the expenment. The attached table hsts the expenment schedule and r d m t P-33 concentmuons for the study. All personnel involved in these studies will be tralned in the safe use of radionuclides, w l l wear appropria& p e w clothmg, and will be momtored by a Health Physicist during the experiment. Please fonvard this informauon to TDEC at the followmg address.. Division of Water Pollution Control Tennessee Department ot Environment 401 Church Street, 14th Floor, L&C Tower If there arc any questions or additional infonnatlon IS required, please contact W. D. Goddard at 576-5749. and Health Compliance
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