CF002

Attribute: PARTNCODE

code		description
D		Derived value - mathematically determined from other analytical measurements
D*		Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit
DC		Derived value confirmed, contamination suspected (code use begins May 2007)
DE		Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values
DQ		Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values
N		No derived value is calculated due to missing analytical components