Click Here to download a PDF slideshow of Sampling Instructions.
- Schedule project with Weck Laboratories, Inc. & order bottles
- Check supplies upon receipt
- Inspect the sampling kit and read the laboratory instructions carefully
- Preservatives
- Sampling containers may contain a preservative
- Do not rinse them prior to sample collection
- Do not add preservatives to the sample unless specifically instructed
- Schedule courier and sampling to meet holding-times
- Fill containers per provided protocols
- Carefully choose the sampling point. In most cases locate a sampling tap that is after treatment (if
present), but prior to entry to the distribution system. - Collect the samples immediately prior to shipment to the laboratory.
- Remove attachments such as a hose, filter, screen, or aerator from the tap.
- Flush the tap for more than 10 minutes or until the water temperature becomes stable. This helps ensure a representative water sample.
- Carefully follow the instructions for filling the sample container
- Different types of samples have different requirements
- Do not touch the inside of the cap, and do not over-tighten
- Fill all extra containers - they are for quality control
- Complete the Chain-of-Custody form and repeat steps 4.1 for additional samples
- Packaging
- Pack the containers to avoid breakage
- Samples must be kept at or below 6 degrees C but not allowed to freeze
- Cool them with sufficient ice (2 lbs ice per lb of sample) or (16 lbs ice per gallon of water)
- To protect samples from breakage or freezing, packing materials such as bubble bags should be
used - Ice should not be used as a packing material, since it will melt and leave space, leading to breakage of the bottles during shipping
- Refrigerate until shipped or picked-up
- Include the “Chain-Of-Custody” form enclose in a “Zip-Lock” bag and tape to underside of the cooler lid
- Ship Cooler to Weck Laboratories, Inc.