Laserfiche WebLink
<br />. . <br /> <br />United States Department of the I <br />BUREAU OF RECLAMATION <br /> <br /> <br />UPPER COLORADO REGION <br />D X~m.~9\)DfJ?J Dl1RA1'G~.bR~~~~:OS OFFICE <br /> <br />JAN::;;~~~ In URA::OHCOLsO:O 81301 <br /> <br /> <br />COLORADO VI <br />CONScR~/1" ",~~TER <br />.."'1()0" <br />Mr. Albert J. Hazle, Director <br />Colorado Department of Health <br />4210 East 11 Avenue <br />Denver, Colorado 80220 <br /> <br />1:\ liEI'Ll' <br />HtXEH. TlJ.]OO <br /> <br /> <br />120 <br /> <br />Dear Mr. Hazle: <br /> <br />m.Trur 1982 r n <br />O'.-I!"'.l <br />1/ .....!.4 JAN 7 <br />FILE COPY <br /> ,..--. <br />INfO;~MATiON ., <br />COpy TO: B <br />ROUTE TO kil1V\I.S DArE Y <br /> ... <br />I If,!:') 1?nK Y.a - <br />2 i:J 7if:.€. IIi? <br />915 -~ <br /> <br />A study has been made by Williams Brothers Engineering Company for the <br />Bureau of Reclamation to determine the feasibility of disposing of brine <br />by deep well disposal. These natural brine seeps in Paradox Valley <br />presently flow into the Dolores River causing significant salt <br />contamination. The brine flow is being intercepted in a well field. <br />Current plans are to dispose of the collected brine into a deep well at a <br />depth of about 15,000 feet. <br /> <br />Prior to deep well disposal, the suspended so~ids in this natural brine <br />will be removed by diatomaceous earth filtration. Analyses of suspended <br />solids collected for test purposes indicate very low contents of hazardous <br />elements and very low levels of radioactivity. Your comments regarding <br />these suspended solids will be appreciated. <br /> <br />The samples for hazardous waste and radioactivity tests were collected <br />using the following procedures: <br /> <br />HA-type, 142 <br />used to remove <br />brine. <br /> <br />mm diameter, <br />the solids <br /> <br />Millipore filters (.45 micron) were <br />from bypass streams of the collected <br /> <br />Samples were collected from a composite flow stream from all of <br />the wells and also from individual wells. <br /> <br />A total of 72 Millipore samples were collected over a 6-week <br />period with periodic starting and stopping of the well pumps to <br />simulate actual operating conditions. <br /> <br />Radioactivity Analysis <br /> <br />The 72 samples vf suspended solids were combined into one composite sample <br />and sent to Eberline Laboratories for radioactivity analysis. Composite <br />samples of the brine, both filtered and unfiltered, also were submitted to <br />Eberline Laboratories. A copy of the analytical results and a comparison <br />of the results with EPA limits are attached. <br /> <br />NoncifO 451 <br />iff YOll detach &nc/Osures r ,. <br />nsert ye ... , P ea3f <br />ur Code /lUmber "-- <br />