* Data by the Utah Division of Water Quality;

data well15;

 label tds='Total Dissolved Solids';



Jan01 91  1002

Jan23 91   974

Feb06 91   966

Feb18 91   966

Mar04 91   972

Mar18 91   944

Apr01 91   970

Apr15 91   969

May01 91  1009

May16 91  1052

May28 91  1029

Jun13 91  1052

Jun27 91   998

Jul10 91   998

Jul22 91   964

Aug08 91  1132

Aug21 91   995

Sep03 91  1086

Sep16 91   999

Sep30 91  1032

Oct14 91   984

Oct28 91   949

Nov11 91   955

Nov25 91   976

Dec10 91   974