Document Details


Title:
EVALUATION OF THE PROJECT DRIBBLE SITE, HATTIESBURG, MISSISSIPPI, FOR DISPOSITION, INCLUDING IDENTIFICATION OF RESTRICTIONS, PART I
Subject Terms:
DRIBBLE PROJECT; RADIOACTIVE WASTE DISPOSAL; RESEARCH PROGRAMS; SALMON EVENT; STERLING EVENT; WHETSTONE OPERATION; PHYSICAL PROPERTIES; LATCHKEY OPERATION; RECOMMENDATIONS; AQUIFERS; CAVITIES
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1971 Mar 31
Declassification Status:
Never classified
Document Pages:
0052
Accession Number:
NV0067650
Document Number(s):
NVO1229145PTI
Originating Research Org.:
ATOMIC ENERGY COMMISSION-NEVADA OPERATIONS OFFICE
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THE SITE OF THE PROJECT DRIBBLE UNDERGROUND NUCLEAR AND HIGH EXPLOSIVE DETONATIONS WAS STUDIED TO ASSESS CONDITIONS AND MAKE RECOMMENDATIONS PERTINENT TO DISPOSAL FROM ATOMIC ENERGY COMMISSION PROPRIETORSHIP AN D SUPERVISION. DISPOSAL OF A NUCLEAR EVENT SITE SHOULD BE CONSIDERED F ROM THE STANDPOINT OF SECURITY, RADIOLOGICAL SAFETY, AND STRUCTURAL SA FETY IN A LOGICAL SEQUENCE OF CRITERIA APPLICATION. CRITERIA DEVELOPED FOR DISPOSAL OF SHOAL, NEVADA, AND GNOME, NEW MEXICO, SITES WERE APPL IED TO THE DRIBBLE SITE. THE CAVITY, AND AN AREA NEAR WELL HT-2 USED F OR RADIOACTIVE WASTE DISPOSAL, CONTAIN MELT AND DEBRIS, AND RECOVERED WASTES, RESPECTIVELY, WHOSE ANALYSIS MIGHT REVEAL CLASSIFIED INFORMATI ON. HOWEVER, AFTER SEALING STATION 1A HOLE, ACCESS TO EITHER OF THESE UNDERGROUND PLACES WOULD REQUIRE EXTENSIVE DRILLING AND COMPLETION EFF ORT. EXCLUSION OF DRILLING AND MINING EQUIPMENT FROM WITHIN 300 FEET O F GROUND ZERO AND 600 FEET OF WELL HT-2 IS RECOMMENDED. SECURITY CONSI DERATIONS WOULD NOT PREVENT RELEASE OF THE SITE TO PUBLIC DOMAIN AND P RIVATE OWNERSHIP UNDER THIS CONDITION. RADIOACTIVE MATERIALS AT THE SI TE SURFACE ARE BEING SURVEYED BY BOTH DIRECTED AND RANDOM GRID INSTRUM ENT AND SAMPLE COLLECTION AND ANALYSIS TECHNIQUES. DEBRIS FOUND TO BE CONTAMINATED SHOULD BE REMOVED. SOIL FOUND TO BE CONTAMINATED SHOULD B E REMOVED OR MIXED WITH CLEAN FILL AND DISTRIBUTED UNDER FRESH SOIL CO VER TO AVOID EXPOSURE AND LEACHING TO POSSIBLE SORBING CLAY HORIZONS. SUBSURFACE RADIOACTIVE MATERIALS ARE CONFINED TO THE CAVITY, SOME FRAC TURES IN SALT AT THE CAVITY MARGINS, AND TO A SMALL AREA WITH RADIUS L ESS THAN 150 FEET IN THE COOK MOUNTAIN LIMESTONE (AQUIFER 5) NEAR WELL HT-2. ISOLATION OF THESE RADIOACTIVE AREAS WILL PROBABLY CONTINUE. TH E CAVITY IS ISOLATED FROM THE GROUND-WATER SYSTEM. FLUIDS IN AQUIFER 5 MOVE AT LESS THAN 10 FEET PER YEAR. COLLAPSE OF THE PRESENT CAVITY IS IMPROBABLE. FIVE WELLS ARE RECOMMENDED FOR RETENTION FOR WATER QUALIT Y AND PRESSURE MONITORING PURPOSES; ONE NEW HOLE NEAR HT-2 IS RECOMMEN DED FOR MONITORING AQUIFERS 4 AND 5. FRESH WATER AQUIFERS IN THE REGIO N OF THE SITE HAVE VERY LOW GRADIENT AND SLOW RATE OF WATER MOVEMENT. NO RADIONUCLIDES ABOVE CONCENTRATION GUIDE LEVELS ARE FORECAST TO ENTE R FRESH WATER AQUIFERS. FURTHER DISPOSAL OF WASTES IN SALINE AQUIFER 5 IS NOT RECOMMENDED, IN ORDER TO AVOID HYDRAULIC PRESSURE INCREASE AT THE CONTACT WITH TATUM SALT DOME, ONE-HALF MILE DISTANT. EXCEPT FOR DR ILLING AND MINING RESTRICTIONS, THE SITE IS RECOMMENDED FOR RELEASE TO ITS OCCUPANTS FOR AGRICULTURAL PURSUITS.


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