# properties.unit_of_measure.description
Parameter reporting units defined to cooperate with descriptions by USEPA.

# properties.parameter_group_code.description
Categorical groupings of parameters by water-quality data type for display and report ordering

# properties.parameter_description.example
Location in cross section, distance from right bank looking upstream, feet

# properties.epa_equivalence.description
Indicates the relationship of the USGS parameter code to the EPA code.