ECI140A 2.4 (Physical Characteristics of water)

turbidity (NTU)

assess the clarity of water

solids

to assess the reuse potential of a wastewater and to determine the most suitable tpye of process for its treatment; TDS tests assess suitability of water sources for public, industrial, and agricultural uses

settleable solids (mL/L)

to determine those solids that will settle by gravity in a specified time peroid; test data used for design of sedimentation facilities

color

to assess the presence of natural and synthetic coloring agents in water [yellows], to assess the condition of wastewater (fresh or septic) [brown, grey, black]

odor

to determine if odors will be a problem

temperature

to design and carry on biological and other treatment processes; to determine the saturation concentrations of various gases