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<br />'<~~~1~c~8-"~100.. DATA
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<br />':'~~~"~YSiCal data at each station, were, obtafn:i;i~rf~i1dw8t
<br />-'--..:..'.(~;,~"!!;ta!;rf.c,;:. "~~_c::__~_~::_......:...-:," " .,...._::.::.:__~"_~::::.:.::..s.:_:..: _~__ .' ''''
<br />.~ti~-c LocationtThe exact location of each collecUt\9' site was
<br />---_..--~"'--:~-:'"'>~'-'.....",....., ~'-,. "-., - , , .' _ ------_.,-,
<br />-~-=-::.= .'. --~~~c;:~ :~..W-fted States Geological Survey Maps of -the canyon
<br />~~~. . . _:~~',-
<br />A~~ J(idth and depthz Mea8urements of aver4ft width and deptlJ "'~ ,;~, :j:- -:;:
<br />':"'-::~i~~~iot~t~.~;~~~-!~~4! ...~~_~t}~~ !~~~=:!~~ld& r~~ ion ~~; e:rlie~~J.:~:::\-~
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<br />nVelocityt Measurements of velocity 'Were made by timinq a float frOl!lthe,
<br />~-_.~I'.to:-tliB:::-lowefr:-end of 100 feet of unobstructed stream~ The 4ver-
<br />, aoe of three consistent measurements was accepted for the record and
<br />was recorded in feet per second.
<br />
<br />Color and turbidi tya Notes on water color were made from observation. .
<br />~.:::==~=-'--~=--=rnC:-l1'le:frel(r:--Water saxIiples were brought into the laboraforyafth;------
<br />University of Utah and turbidity measured with a Hellige Turbidi~ter.
<br />c '., ~~..u: _Resul ts are expre~,se.d as .parts per. Jl1i11i(Ul_Qt::.sil'icon, Flq. 1.
<br />-~'.:;: ,-, :--;"~ :''7-:--'~~.-l!.- '-"'--- -''':7-' _.~~;':~ --~- -- -- . ..;.,,-.- - .-.- ------.,-- ---~-_&'....~." -. .'-
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<br />. Tempeiatuiet.~-'-Temperature measurements were made with field-type ther-
<br />'C::e-::::: 'Hmamete~, and" re<:orded. to, the- nearest~eeFa~nhett:' . An--ti!mpera:turel5
<br />';;~-;;:~:;*;i~w.-ze~d ih.the "shade:' usually a.f: standini: height above the water.
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<br />.fc1iltfii:C;~mPleswere col1ecfed~iow'~
<br />~j.;~":.,hOttle and analyses were made at the collection
<br />~:,~==_~~'~~t:al analY!'J!field kit, Fig.. 2.
<br />
<br />surface in a 250 cc. sample'
<br />'sites using a pOrtable chem-
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<br />Oxygen. '. The sodium azide modification of the Winkler ~thod a-s outlined
<br />in the "Sh.ndard Methods of Water Analysisn (1955) was used to deter-
<br />mine the dissolved oxygen concentration. Results are expressed in
<br />parts per million (p.p.m.).
<br />, ,
<br />
<br />Carbon Dioxide. The amount of free carbon dioxide recorded as parts per
<br />million (p.p.m.) was obtained by titrating 10C). cc. samples of water
<br />with N/44 Sodium Hydroxide using phenolphthalein as an indicator.
<br />
<br />Alkalinity. Alkalinity was measured by titrattnqa 100 ec. sample of
<br />water against N/50 sulfuric acid usinq phenolphthalein as an indica-
<br />tor. After this reading,. methyl orange was added to the same sample
<br />and aqain titrated with the same acid. The~ueasurements we re con- 'i.
<br />verted and expressedaa p.p.m. ()fcarbonate..bicarbonate,_reapectiVe...;:
<br />1~ by means of 4 f011lllIla goiven by Welchidlt4ai';K-S. .. '<------~-....,.'
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