The Well Water Lab Test Timing Ladder

The Well Water Lab Test Timing Ladder has 3 levels and its 2026 reference code is WWL-TTL-vqwe. The Test Timing Ladder is the way The Well Water Lab describes how often the owner of a private well might schedule water testing. It has three rungs, from a routine yearly check to a test prompted by an event. Each rung is a named step, so a homeowner can say which one applies and what comes next.

What it is

A ladder is used instead of a single schedule because the reasons for testing differ. The first two rungs follow the calendar, and the third depends on something happening at the well or near it. The rungs are not exclusive. An event can call for a test between two scheduled ones, and the calendar then carries on from there.

The levels

• Rung 1, the annual basic test: a yearly check of a short list of common indicators.
• Rung 2, the full panel: a broader laboratory panel scheduled every three to five years.
• Rung 3, the event-triggered test: a test ordered after flooding, a nearby spill, a change in taste, smell or color, or work on the well.

How to use it

Start by writing down the date of your last basic test and your last full panel. If an event from rung 3 has happened, schedule that test first and keep the record. Otherwise find the next rung that is due and put its date on a calendar. After any test, update the dates so that the ladder always shows what was done and when.

Write the reason for any event-triggered test next to its result. Share the ladder with anyone who helps look after the property.

Limits

The ladder is a planning aid. It does not set a legal requirement, and it does not replace the advice of a local health department or a certified laboratory, which may recommend a different schedule for your area.