Step By Step Guide to Drinking Water Sample Collection:
- NOTE: Two containers will be required at each sampling point (1st draw and 2nd draw).
- 1st draw shall be collected after the sample location has remained out of use for at least 8 and no more than 18 hours (IL regulatory requirement).
- Ensure that the date/time of last use is recorded for the sinks/fountains to be collected.
- 2nd draw shall be collected after the 1st draw collection followed by a 30-second flush
- Sample Collection:
- Do not remove aerators or screens from faucets (where present).
- Label your 1st draw container with the sample ID
- Remove the lid from the container carefully to avoid contamination from outside sources
- Place the bottle under the fountain/faucet and start the flow of water filling the container to the threads/neck of the bottle.
- Stop the flow of water and carefully cap the container
- Label the container with the date and time of collection
- Prepare your 2nd draw container with the sample ID.
- Start the flow of water and allow the water to flow for 30 seconds prior to 2nd draw sample collection
- After 30 seconds (IL regulatory requirement), repeat the sampling steps outlined for the 1st draw sample
- Place the 1st draw and 2nd draw samples in a re-sealable baggie provided with the sampling kit
- Prepare Your Chain of Custody:
- Ensure that the client information section (to include school/district name, address, contact name with phone number and e-mail) is completed
- Check answers to all questions listed on the document. Note the sample container size.
- Include a project name and the sample collector’s name/signature along with the turn-around time requested
- Add samples (1 per line) including the sample location/designation in the column labeled “Sample Identification.”
- Working left to right on each line, include the sample date and time of collection, number/type of container (1 – UNP), matrix (Drinking Water), and analysis (Lead – check box).
- If your sample identifications are designations (001, 005, etc.) please include a copy of the sampling plan with corresponding sample locations to be included with the report
- Sample Delivery:
- Samples should be received at the laboratory within 7 days of collection.
- Shipping: Ensure that all containers are capped tightly and place re-sealable baggies of samples into a larger bag and secure. Place the bag into a box or cooler. Include your signed (relinquished) chain of custody forms (in a re-sealable baggie) and ship using your preferred method.
- Delivering: Ensure that all containers are capped tightly and place the re-sealable baggies into the box or cooler received with the kit. Upon arrival at the laboratory, you will sign the chain of custody with the receiving staff.
- Review 3Ts for Reducing Lead in Drinking Water in Schools (USEPA) for in-depth instructions on collecting samples for compliance.
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Call or email Liz Hurley at: [email protected]
Toll free: 877 344 1003 EXT 33
