How should microbiology samples be collected from faucets, spigots, hydrants, and pumps?
Microbiology sample collection from municipal supply
The following should be considered when sampling from a faucet, spigot, hydrant or pump:
- Unless otherwise specified by the method you are using, collect representative samples by allowing the water to run from a faucet, hydrant or pump at a moderate rate for two to three minutes before sampling.
- Adjust the flow rate before sample collection to avoid splashing during collection. Do not adjust the rate of flow while collecting the sample.
- Avoid valves, spigots and faucets that swivel or leak or those with attachments such as aerators and screens, or remove the attachments prior to sample collection.
- Handle the sample containers carefully. Open the sample containers just prior to collection and close immediately following collection. Do not lay the lid or cap down, touch the lip or inside surface of the container or rinse the containers before use.
- Label the sample containers immediately and analyze promptly.