What are Main Indicators of Water Safety for Drinking?

Parameters to Test

When selecting a water testing kit for home use, look for one that tests for the following key parameters: total coliform bacteria, E. coli, pH, total dissolved solids (TDS), and turbidity. The EPA recommends testing for coliform bacteria and pH levels at least quarterly, while TDS should be tested annually. The water testing kit should be certified by a reputable third-party organization, such as NSF International or the Environmental Protection Agency (EPA).

Understanding the Results

To interpret the results of your water test, you will need to understand the acceptable limits for each parameter. For example, a pH level between 6.5 and 8.5 is generally considered safe for drinking, while total coliform bacteria levels above 1% are a clear indication of contamination. The EPA provides guidelines for acceptable levels of each parameter, which can be found on their website. If your test results indicate a problem, you may need to take corrective action, such as installing a water filtration system or performing additional testing to identify the source of the contamination.

Choosing the Right Water Testing Kit

When selecting a water testing kit for home use, consider the following factors: ease of use, cost, and the specific parameters tested. Look for a kit that includes pre-sterilized containers and any necessary chemicals or reagents. The kit should also include instructions on how to collect and handle the water sample, as well as how to interpret the results. Some popular water testing kits include the EPA’s Home Water Testing Kit and the Hach Water Testing Kit.