Step By Step Guide to Drinking Water Sample Collection:
PLEASE 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 Procedure
1. First Draw Sample Collection
- Do not remove aerators or screens from faucets.
- Label the first draw container with the sample ID.
- Carefully remove the lid to avoid contamination.
- Place the container under the faucet, start the water flow, and fill it to the threads/neck.
- Stop the flow and carefully cap the container.
- Label the container with the date and time of collection.
2. Second Draw Sample Collection
- Label the second draw container with the sample ID.
- Run water for 30 seconds before starting the sample collection (per IL regulatory requirement).
- After 30 seconds, follow the same steps as the first draw sample.
- Place both the first and second draw samples in the provided re-sealable baggie.
Chain of Custody Preparation
Before Shipping:
- Complete the client information section (school/district name, address, contact info).
- Answer all listed questions and note the sample container size.
- Provide a project name, sample collector’s name/signature, and requested turnaround time.
- List each sample on a new line in the “Sample Identification” column with location/designation.
- Record the sample collection date and time, container type (1 – UNP), matrix (Drinking Water), and analysis (check “Lead” box).
- If using numeric sample IDs (e.g., 001, 005), include a sampling plan with location details for the report.
Sample Delivery
Laboratory Receipt Guidelines:
- Delivery Timeline: Samples should arrive at the lab within 7 days of collection.
Shipping Instructions:
- Ensure all containers are tightly capped.
- Place the re-sealable baggies of samples in a larger bag and secure it in a box or cooler.
- Include the signed chain of custody forms (in a re-sealable baggie) and ship via your preferred method.
In-Person Delivery:
- Ensure containers are tightly capped and place samples in the box or cooler provided.
- Upon lab arrival, you will sign the chain of custody with the receiving staff.
You may also review 3Ts for Reducing Lead in Drinking Water in Schools (USEPA) for in-depth instructions on collecting samples for compliance.
Need a Quote or want more information?
Call or email Liz Hurley at: [email protected]
Toll free: (877) 344-1003 EXT 33
