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CF002

Attribute: DONCODE_MO

code  description    
D    Monthly value based on derived values     
D*    Monthly value based on derived values; one or more values measured below the detection limit     
DE    Monthly value based on derived values; one or more values estimated     
DE*    Monthly value based on derived values; one or more values estimated     
DQ    Monthly value based on derived values; one or more values questionable     
DQ*    Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit     
ID    Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values     
ID*    Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit     
N    No analyses conducted for proportional samples taken during the month