How do I determine the water sample volumes required for my requested analyses?

While each method gives a suggested sample volume, due to improved technologies the actual volumes necessary may be much less than previously needed. Additionally, methods are written as though only a single parameter is being collected while in the real world you may be sampling for several parameters which can be analyzed from a single volume. If you contact the PM department at the laboratory and let them know what parameters you need to be tested, they will be able to provide you with the correct collection volumes and containers.