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Tuttle Draw — Data for sites SW -NI (up gradient site), SW -N3 (down gradient site), and SW - <br />N104 (inlet of West Lateral Ditch) have been complied and shown in summary tables below and <br />graphically. Summary tables for indicator parameters are provide below for each site and <br />include data from 2000 to 2016 if available. <br />tV.?"S"3c.%Fy":..r:Ys?#°.:zZ;ar•^a7:a':..•..:tisti'Ci.';,;:`-x..w,r.+.F'a. :ry .w '.5:.n ri'.L'.fix.; .«'7�.3'�.....;n,.,a+..i <br />''i:� y-.` ,�j�. # <br />r+ .. ; - - . Mean :�' <br />.,t a.'?.'riFr. ':tie:-"...xlrtY <br />st a <<' <br />Range `' <br />..-.: vs::'ix'a�'.FTM ':: ::.f%AVw w, r.'s: ea <br />fr <br />Min. NF,, Min at <br />1.4 <br />8.6 <br />7.2 <br />9/4/08 <br />8/16/02 <br />Lab Cond. (umhos/cm) <br />a <br />931 <br />,e <br />8.3 <br />0.2 <br />1.0 <br />8.5 <br />7.5 <br />1,513 <br />12/4/02 <br />:Labon&um1 <br />962 <br />642 <br />2,609 <br />2,910 <br />301 <br />�)-2 <br />8/13/07 <br />TDS (mg1l) <br />698 <br />556 <br />2,509 <br />2,690 <br />181 <br />9/26/12 <br />8/24/07 <br />Sulfate (mg/1) <br />340 <br />332 <br />1,630 <br />1,700 <br />70 <br />9/26/12 <br />8/16/07 <br />Calcium (mg/1) <br />121 <br />84 <br />451 <br />496 <br />45 <br />9/26/12 <br />8/17/07 <br />Iron (tot rec ug/1) <br />1,524 <br />2,000 <br />8,890 <br />9,050 <br />160 <br />8/16/07 <br />2/24/06 <br />Magnesium (mg/1) <br />57 <br />53 <br />196 <br />204 <br />8 <br />9/26/12 <br />8/17/07 <br />Sodium (mg/1) <br />22 <br />19 <br />61 <br />66 <br />5 <br />2/17/06 <br />8/20/07 <br />SW -N3 <br />Parameter Mean Std Range Max. Min. Max at Min at <br />dev <br />Lab pH <br />8.2 <br />0.3 <br />1.4 <br />8.6 <br />7.2 <br />9/4/08 <br />8/16/02 <br />Lab Cond. (umhos/cm) <br />1,782 <br />931 <br />3,240 <br />3,640 <br />400 <br />2/10/15 <br />8/13/07 <br />TDS (mg/1) <br />1,513 <br />965 <br />3,208 <br />3,440 <br />232 <br />2/10/15 <br />8/24/17 <br />Sulfate (mg/1) <br />910_ <br />647 <br />2,130 <br />2,220 <br />90 <br />2/10/15 <br />8/17/07 <br />Calcium (mg/1) <br />243 <br />136 <br />504 <br />558 <br />54 <br />8/31/02 <br />8/17/07 <br />Iron (tot rec ug/1) <br />1,355 <br />1,975 <br />10,470 <br />10,600_ <br />130 <br />8/16/07 <br />5/17/08 <br />Magnesium (mg/1) <br />112 <br />76 <br />246 <br />259 <br />13 <br />2/10/15 <br />11/21/07 <br />Sodium (mg/1) <br />61 <br />51 <br />204 <br />212 <br />8 <br />2/20/12 <br />8/20/07 <br />SW -N104 <br />Parameter <br />Mean <br />Std <br />Range <br />Max. <br />Min. <br />Max at <br />Min at <br />dev <br />Lab pH -- <br />8.1 <br />0.6 <br />2.1 <br />8.4 <br />6.3 <br />9/2/05 <br />8/16/02 <br />Lab Cond. (umhos/cm) <br />355 <br />53 <br />206 <br />452 <br />246 <br />12/4/02 <br />8/13/07 <br />TDS (mg/1) <br />215 <br />45 <br />168 <br />291 <br />123 <br />12/13/02 <br />5/28/08 <br />Sulfate (mg/1) <br />89 <br />32 <br />126 <br />130 <br />4 <br />8/15/02 <br />5/16/08 <br />--------------------------- <br />Calcium (mg/1) <br />58 <br />------------ <br />10 <br />--------- <br />32 <br />- -- --- --------------------------- <br />73 <br />42 <br />9/24/04 <br />8/17/07 <br />tot rec u <br />2,006 <br />2,485 <br />8,680 <br />8,780 <br />1_00_ <br />8/16/07 <br />_9/21/04 -- <br />_Iron <br />Magnesium (mg/1) <br />7 <br />1 <br />4 <br />9 <br />5 <br />12/5/02 <br />8/17/07 <br />Sodium (mg/1) <br />5 <br />1 <br />4 <br />7 <br />3 <br />8/30/02 <br />8/20/07 <br />A review of the water year data indicates no minimum or maximums occur during the water year <br />for any of the indicator parameters at any of the surface monitoring location on Tuttle Draw. <br />As shown on the graphs for all indicator parameters, all three same locations tend to track the <br />same. However, SW -N3 is showing slight increases in laboratory conductivity, TDS, sulfate, <br />5 1 P a g e <br />