Correct Water Sampling

Summary

This Kansas State veterinary diagnostic lab video outlines the proper techniques for water sampling to ensure accurate analysis of potential toxins. Key points include sampling from the water distribution line, not the wellhead, and submerging containers to avoid surface contaminants. For pond sampling, maintain a distance from the bank and use sterile containers. Special considerations are given for testing hydrocarbons or insecticides, requiring glass mason jars and aluminum foil. Coliform testing necessitates same-day delivery to the lab in a sterile container. The video concludes with advice on labeling, refrigeration, and contacting client care for further information.

Takeaways

• 💧 Water is an essential nutrient for animals and can be a source of toxins such as nitrates, sulfates, heavy metals, lead, and blue-green algae.
• 🚱 Do not take your only water sample from the wellhead or the end of the water distribution line; sampling from these areas may miss potential contamination.
• 🌊 When sampling water from an open surface source, do not leave the container on the surface to avoid floating contaminants.
• 🔍 Submerge the container 3-4 inches below the surface to collect a more accurate sample.
• 🏞️ For pond sampling, stay 3-6 feet away from the bank to prevent contamination from the shoreline.
• 🧴 Use a sterile container of at least one pint in size, or if unavailable, an unopened quart water bottle can be used after rinsing twice with the water to be sampled.
• 🧪 For testing hydrocarbons or insecticides, using a glass mason jar with aluminum foil under the lid is recommended to avoid contamination from the lid.
• ⚠️ Be cautious of surface contamination from nearby sources like liquid feed containers, fertilizer tanks, or oil field structures, especially if they could contaminate the wellhead.
• 🦠 If requesting coliform testing, the sample container must be sterile and delivered to the lab on the same day it was collected.
• 📋 Label your sample container with the location, owner's name, and date, and refrigerate the sample after collection for proper transport to the lab.

Q & A

Why is water sampling important for veterinary diagnostics?

Water sampling is crucial for veterinary diagnostics as it helps in investigating potential problems related to water quality, which is an essential nutrient for animals. It can also identify toxins such as nitrates, sulfates, heavy metals, lead, and blue-green algae that could be present in the water.

What is the recommended location for taking a water sample from a distribution line?

The best location for sampling water from a distribution line is not the wellhead but rather the end of the line, as this allows the sample to flow through the pipes that may be the source of contamination.

How should one collect a water sample from an open surface source to avoid contamination?

When collecting a water sample from an open surface source, one should not leave the opening of the container on the surface of the water. Instead, submerge the container three to four inches under the surface and allow it to fill to prevent floating contaminants from entering the sample.

What is the recommended distance from the bank when sampling a pond?

When sampling a pond, it is recommended to stay three to six feet away from the bank to minimize the chance of contamination from the bank area.

What size of container is suggested for water sampling, and what can be used if a sterile container is not available?

A sterile container of at least one pint in size is suggested for water sampling. If a sterile container is not available, an unopened quart water bottle purchased from the store can be used, after rinsing it twice with the water to be sampled.

Why is it advised to use a glass mason jar with aluminum foil under the lid when testing for hydrocarbons or insecticides?

A glass mason jar with aluminum foil under the lid is advised for testing hydrocarbons or insecticides because it helps prevent contamination from the lid, ensuring a more accurate sample.

What should one be alert for when considering surface contamination during water sampling?

One should be alert for surface contamination from leaking sources such as liquid feed containers, fertilizer tanks, or oil field structures, especially when the contamination could flow into the wellhead.

What are the requirements for a water sample if coliform testing is requested?

For coliform testing, the sample container must be sterile, and the sample needs to be delivered to the lab within the same day it was collected.

How should a water sample be labeled and stored after collection?

After collection, a water sample should be labeled with the location, owner's name, and date. It should then be refrigerated for storage and transport to the lab.

Who should one contact for more information on water sampling procedures or other tests offered by the Kansas State Veterinary Diagnostic Lab?

For more information on water sampling procedures or any other tests offered, one should contact client care at the Kansas State Veterinary Diagnostic Lab.