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<br />10
<br />
<br />WESTERN BOUND"RY WATER BULLETlt~ 1979 INTERNATION^L BOUNDARY AND WATER. COMMISSION
<br />
<br />YUMA MAIN CANAL W ASTEW A Y TO COLOR ADO RIVER AT YUMA, ARIZONA
<br />
<br />:,111
<br />DF.SC~TPTION' The wa"teway recelve, waler from the Yu.... /'tI1" C/l.1a, iit ~"e checl< ...truelw'" r>n the Nlr\JI1:1,1, 5~5
<br />feet (501m) upelrulII frollllhe Inlak"'oftne Colorado River 31phOn, and 3.211l11u (".l kill) down9tree.."rroli
<br />lhe Slphon Drop Power Plant. Th13wa"tewaydI3Cherge"lntotheCO!OrlldORlverontneCellfornla"Ide, ',000
<br />feel (305111) up"treelll from COlorad" Rlver below YUlIIa MBln Cane I lIasteway, and 6.511l11e" (IO.5km) up"tream
<br />fromthenortherlylnlernatlonallandboundary.
<br />R~CORDS: D19charge h COlllPuted.9 the dIfference bHlleen the "'e.llsured dIscharge of the Yu~ Hain Canal at the
<br />SlphOl1 Drop Power PlInt upstre3m and that of the 9ame canal belo... the Colorado River 9iphon, with deductlon9
<br />for 9....11 lrrlgat Ion di verll.lon9 fronl the canal bet...lI.en lhe ~wo g'lging 9lat 101'19. Reeord9 obtlllned and
<br />rurnI9hedbyU.S.Geologlea15urvey. Recordll.aval.lable: Aprll 1913 through 1979.
<br />RDlARY.S: The wa,9tewaydlgeharge9 lotheriverlhe flow In exCe99 of Irrigation water In the Yuma Main Canal.
<br />This a~oe99 I'low, in addItion to the IrrigaUon water, wall. dl~arted rrom the All_A.lIIerican Canal into the Yu:c~
<br />KainCanelandutili1:ed for p,:,wer purp0gesat lhe Siphon Drop Po...er Plant.
<br />EXTREMES: Prior to 1935, whom stor'age began in Lake Head: Average annual flow, ;>,,7,800 acre-feet:
<br />(367,333,000 ,,3); maximum annual flow, 9\3,700 acre-feet (1, 127 ,O~O,OOO ,,3), 193;>; "lnilllUllJ annuIIl flow,
<br />11~,900 acre-feel (141,728,000 m3), 1917. Since 1935: M.a.tmum !Ilean dally dlgeharg~, 220 second-feet
<br />(57,;> 1113/Sec), Oece"ber 2~_;>5, 1948; 1lI1nlmUnl mean d~lly di,charga, no flow on nu",erOU9 oCCUlon9.
<br />
<br />Mean Daily Oiechar.C1 in Second-Feet 1979 - Annual and Period Summary
<br />
<br />Dor Jan. Fall. Much April "" JUlie Jill, AliI. Sept. Oct. "~, "",,
<br />, 5' .. " " " ., " " " .. " ',5
<br />. 92J " " " " " " " " " " 7.7
<br />. 805 " " ., ., ., '9 .e '9 " ., 9,9
<br />. 809 " " " " '9 " ., '9 " '07 9,9
<br />. ", " .e ., " " " ., " " 5,8 9.'
<br />. ''" " " " ,a " .a " '9 " 5.a 9,7
<br />7 a]8 " " " " '9 " " " ,. '5 9.9
<br />. '"" " '9 " " " " " " " '" 9,'
<br />. 676 " " " " " '" " " " ",' "
<br />10 ." " ". " " " " " ,a " " 9,'
<br />n 65a " " .. " '9 " " " .. " "
<br />" '5' " " ,. " '9 " '9 " ,. 9,' 9,7
<br />.. ... " " " " " " '9 " ,. 9.' 9,a
<br />" '" " 9' " ,a '9 " ,s .. " P 9,'
<br />.. ..' " " " " " " " " " 9,5 "
<br />II ." " " " " " " " ,. " 1 ~. 0 9,9
<br />" .,. '9 " .. " " " " " " 15,0 "
<br />" "79 " " " ,a " " '9 " " 15.0 9,'
<br />.. " " '" " " " " '9 ,. " 12.0 "
<br />10 ,. " " " " " " " ,. " 11.0 "
<br />.. .. " " .. " " ,. " ,. " " "
<br />.. .. " " " " " " " .. " " "
<br />IS .. '0 " " " " " " " " " "
<br />.. " " " " " " " '9 '5 .' " "
<br />IS .. " " '" " " " " .. " 10 10
<br />II .. " " en " " " ,.
<br /> " " 10 "
<br />" .. " " ". " ," " " .. ,.
<br />II 9,5 "
<br />.. " " Jl7 " " " '9 " "
<br />II ',0 "
<br />,. " ,,' " " " " ,. 1/
<br />10 " ',5 "
<br /> " " " " " " ,. " 7.3 "
<br />" " 20
<br /> " " " " "
<br />". 55"
<br /> 2,535 559 58' 51" 301.7
<br />12,493 1,038 sn 570 509 ~23.9
<br /> Cur.ell'VII' 1979 Period 1935-1979
<br /> hlrellle Gale , htremISeclInd-F..t ",we'll.
<br />MOlllh 'H' Total Acre.Feet
<br /> H,.h - l,. Secolld-
<br /> Hilh l,. D" ... het Acra-Felt "'werlee Mu.mlllll Milllllllllll
<br />Jlln. , '" "9 .. '" 2il,780 53. ~83 110,700
<br />feb. , 5 " , 3,215
<br /> " 19.8 1,099 Q6,3<;i5 89, 1~0 1,099
<br />,.". " '" , , " 33.5
<br /> 2,059 ~5. 562 90,\90 ""
<br />'''-' " en " '5 8~. 5 ~.,023 ~7, 107 86.580 B71
<br />~, " " , . " 18.6 1,lil2 ~5, 890 88,;>80 1, 1 ~2
<br />J~ " " '" \8.6
<br /> " 1,109 U8,89~ 86,960 1,109
<br />"tl, ,. " '" ,. 18.4 \.131 il6,065 ~1, 220 'S<
<br />,,,,. " " " " 18.8 I, 15~ ~6, 591 89,890 '56
<br />:;~ll'l. , " " '" 1T.0 1,010 ~9, d90 53,6611
<br />'h. " ,. , , .. 11.2 1,010
<br />Noy. , '" , 1,059 ~6, 957 90.050 1,059
<br />".,. 8,' IIl.l '"' ~6.959 1,010,500 sa,
<br /> 9 " , '.5 9.73 596 51.U18 108,800 596
<br /> '" ,., 56.6 ~, ,0' 0 5%,219 1 ,I)~;> ,850 Q1,01O
<br />harly IiIlle.. CubIC Mallra SaclInd
<br /> ." ThOUlanll1 .. Cubic Matar.
<br /> I 26.1 I I 0.08 I 1.60 50.585 I 723,09511.286,345 I 50,585
<br />
<br />o Mean 01.11 ~
<br />
<br />! And other da:;~
<br />
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