What do my Water Testing Results Show?

by | Apr 7, 2026

Your water testing results show how your water quality compares to safety standards, specifically those set by the U.S. Environmental Protection Agency (EPA). Interpreting these results involves looking at several key parameters:

  1. pH Levels: A safe range is typically between 6.5 and 8.5. Levels outside of this can indicate issues like plumbing corrosion or high acidity.
  2. Bacteria: Results should show that total coliform bacteria, such as E. coli, are entirely absent. If present, the water is considered unsafe and requires immediate disinfection.
  3. Nitrates: The maximum contaminant level (MCL) for nitrates is 10 mg/L. Concentrations above this are often linked to agricultural runoff and can pose health risks.
  4. Minerals and Metals: Testing identifies the presence of heavy metals like lead and arsenic, as well as water hardness (mineral buildup), which should ideally be below 180 mg/L to prevent scaling.

When reviewing your report, you should check the summary for overall compliance and note any analytes that exceed reference limits. Results are generally categorized as safe (below limits), caution (near limits), or unsafe (exceeds limits). If your results show deviations, such as cloudy water or high chemical levels, it is recommended to retest or seek professional treatment options.

Related FAQs

chat-icon
One Nation Plumbing, Heating, and Air

Request Service Online

Let us help you today!

Where are you located?

Please enter your zip code so we can check if we provide service in your area.

truck-icon

Offer Title

Text here...

Request more info

Complete the form below and our team will contact you as soon as possible. If you want to talk to us now, call 720-499-4013

Offer Disclosure