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    Lab technician holding tray of calibrated samples — Stock Photo
    Lab technician holding tray of calibrated samples
    Female biologist pouring water into test tube with dissolved samples of soil in laboratory. — Stock Photo
    Female biologist pouring water into test tube with dissolved samples of soil in laboratory.
    Water department technician using flow rate sensor — Stock Photo
    Water department technician using flow rate sensor
    Female scientist in white coat taking notes in soil testing laboratory. — Stock Photo
    Female scientist in white coat taking notes in soil testing laboratory.
    Colorist mixing hair dye — Stock Photo
    Colorist mixing hair dye
    Woman in a black swimsuit — Stock Photo
    Woman in a black swimsuit
    Lab technician collecting data on sterilization — Stock Photo
    Lab technician collecting data on sterilization
    Water department technician installing a snow stake — Stock Photo
    Water department technician installing a snow stake
    Cropped image of Water department technician removing flushing adapter — Stock Photo
    Cropped image of Water department technician removing flushing adapter
    Water department technician opening fire hydrant to flush water pipes — Stock Photo
    Water department technician opening fire hydrant to flush water pipes
    Water department technician using flow rate sensor — Stock Photo
    Water department technician using flow rate sensor
    Lab technician adding liquid from graduated cylinder to beaker — Stock Photo
    Lab technician adding liquid from graduated cylinder to beaker
    Male adult engineer in water treatment plant — Stock Photo
    Male adult engineer in water treatment plant
    Colorist mixing hair dye — Stock Photo
    Colorist mixing hair dye
    Engineer walking by water treatment plant ultraviolet ionization treatment room — Stock Photo
    Engineer walking by water treatment plant ultraviolet ionization treatment room
    Scientist hand sampling water in flask for quality testing. — Stock Photo
    Scientist hand sampling water in flask for quality testing.
    Mid section of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Mid section of scientist in laboratory mixing samples of soil with reagent.
    Low section of woman wearing a bathrobe dipping her foot in a bath filled with water and rose petals in a modern bathroom. — Stock Photo
    Low section of woman wearing a bathrobe dipping her foot in a bath filled with water and rose petals in a modern bathroom.
    Agronomy technician pouring water in soil samples. — Stock Photo
    Agronomy technician pouring water in soil samples.
    Lab technician picking up samples — Stock Photo
    Lab technician picking up samples
    Female biologist in white coat pouring water in soil sample. — Stock Photo
    Female biologist in white coat pouring water in soil sample.
    Woman in a black swimsuit — Stock Photo
    Woman in a black swimsuit
    Lab technician removing sample vial cap — Stock Photo
    Lab technician removing sample vial cap
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.