Shallow liquid-waste disposal in central Oregon lava terrane

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Shallow liquid-waste disposal in central Oregon lava terrane

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Shallow liquid-waste disposal in central Oregon lava terrane
Parker, Garald G. (Garald Gordon), 1905-2000
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Subjects / Keywords:
Aquifers -- Everglades (Fla.) ( lcsh )
Hydrogeology -- Florida ( lcsh )
Biscayne Aquifer (Fla.) ( lcsh )
Hydrology -- Florida ( lcsh )

Record Information

Source Institution:
University of South Florida
Holding Location:
University of South Florida
Rights Management:
The University of South Florida Libraries believes that the Item is in the Public Domain under the laws of the United States, but a determination was not made as to its copyright status under the copyright laws of other countries. The Item may not be in the Public Domain under the laws of other countries.
Resource Identifier:
032968560 ( ALEPH )
891343127 ( OCLC )
G16-00630 ( USFLDC DOI )
g16.630 ( USFLDC Handle )
3 ( Box number )

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I-AVA TE"RRAlvE ~,ze, ~{_/~6<1') ~a-1'--~;f _,~----~ ~j /4J-z;; ,,e. -J ~~,_~e 7 ~--~;~~. J~.~-L~-~ . ---. . --1/ ---r---.:fY de~~) ~t,. .. 4,.;,1/0t:P ~~,. /~/-u-r~ /? 4 /.7 ,? ~-r r ••c.A-#~~~P-Y~ ,•-e d ;,~ ~( r .:, .. 2). ,,.. di--~ • ~~,,.U.-~~ ~..<~~I ?-4Soz::>.,-.'..-/9~7. a.--=-~ /~ t-iA--~,,. .. -d.-e,~ .. --e.,. ~~..-t:4.;~~~~ /~cJV~ _ _,/ ~-rY ~ ?' ~,/ ~.,;tk ~,e-. _.e4' ;z/4,. ~,:)' ~-0-,P~ /~ g)/~ ~~.,d_~ a-.,'~~~ ~;11 '7'---/-


(!_~1~vu.-l;c~~-~Z-.L~ ~) /~H~I ~-~J ----t 071,,-~ -a:_ _._ 47 lS (l-7-~-<). 1-~~,4_ t ~:;!~~ ;U-e-7 ~-7 ~-k.,• -~ _4e&d{ . ~,-'~~ y ~~~~/,.~,?7Sr~c-•--e~1~~ _,_ ;f ~r/4-,, .. ~_,, In light of the waste disposal methods used in the Middle Deschutes Basin, the question arises as to why the ground-water resources of the a rea are n o t already grossl y p o l l uted. The t._(.<:J.c.eua, tttb'E') answe r to the questiorxinvolves many factors including the follow-ing:


1. The volume of liquid waste is very small when compared to the volume of ground-water recharge coming from canal and irrigation losses, and even smaller when compared to the total quantity of ground wa t e r moving through the area. 2 . Most of the waste is domestic sewage which does not result in a marked chemical effect on water quality when compared to some industrial and chemical wastes. 3. The water wells used to sample water quality are not generally located at sites where sampling would be desirable, and the available water quality information may give a misleading picture of the overall ground-water conditions. For example, the closest well located down gradient from Bend's sewage disposal sump is about 4 miles away . 4 . The .sedimentary layers underlying the surficial lavas serve as effective filters for the removal of all suspended solids, and the great depth to the water table aids in the sorption of some chemicals. ~;t

b,~~~;:1nte,;~~ (I) e..<~..J 'fJLil'-~ a,a7~~~~~;r.rer,.4 de~~; ~) -~ l~) a-• ..f'~ a-:, 7,4;J~~~~ ~~,, ~7~/ ~~-1-c.:~-~ ~e --~-e... ~: ) ~-, 19/,f/ ,;f)~~ ~..-:c dk ~~7' r.UJPC~ //Cd.~ ~. 72c:i. FR-4/ 66 /-'


60 Water Wel 1 ------Septic. i-an k e>r c<='!.S r"""o( • "-.t> .,/v-e,-1'n• P.ek! , Disposal Wel l .:=:=::: -===------=--FIGURE 2. -DIAGRAM SHOWING HOW AN UNCASED WATER WELL CAN SERVE AS A CONDUIT FOH THE MOVEMENT OF PERCHED WATER TO THE REGIONAL WATER TABLE


/ Land Surface Disposal Well 19 ' Septic Tank . "-,,. (No DY-a!n Field) . ; . _____ ......... _ ----0 . 0 • -:: ---~-...... ---•• o _--_-:_ = Sludge -:. --~_ ----.. o 3_-:' _.;-~~=~--=--=-:_~; •. "... • . . '•. 0 . • ' ~ ,;;::• ==?c:=:;;=::::::i,,:,-=::;;::::=:=a--'.::;::,--=:=;;::-:V [/ . u-', . \ ~ ) ,v-/ ' . "" ",,,-1/ ~ k/(~ ~l.1.IJ: r-~< / . -< -' ~"Cl W'l ~ \/), Crevices in basal f/01.0 FIGUREi --DIAGRAM OF A TYPICAL DOMESTIC SEWAGE DISPOSAL SYSTEM IN THE MIDDLE DESCHUTES BASIN


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