more... > Organic & Water Labs > Water Quality Lab > Methods and Pricing for Water Quality testing The following methods and pricing are available at the W. A. Callegari Environmnetal Center Water Quality Laboratory. Water Sample Management & Collection Guide [Image: Image of guide cover] This document provides a detailed description of the sampling, sample preservation and shipping procedures required to ensure the highest quality sample analyses by the W. A. Callegari Environmental Center Water Quality Laboratory.