Guides
Water testing guides
Short answers to the questions people ask before they pick a lab. Then use the finder — official certification lists, not a kit shop.
- Certified lab vs mail-in kit vs dip strip
What a state-certified lab can tell you that a dip strip or retail kit cannot.
- Informational vs compliance testing
When a homeowner test is enough, and when real estate, SDWA, or NJ PWTA rules require a certified lab process.
- How to pick a water testing lab
A short checklist: state certification for your analyte, chain of custody, turnaround, mail-in vs drop-off.
- Best place to send water for testing
Send samples to a state-certified lab for what you need — well, city water, PFAS, lead, or bacteria.
- Test before you filter
Buying a filter before a lab test is guessing. Find what is in the water first.
- Mail-in vs drop-off water testing
When a mail-in kit from a certified lab is enough, and when local drop-off or collection matters.
- Well vs city water testing
Private wells and municipal tap water follow different rules, risks, and starting tests.
- How to collect a water sample
Follow the laboratory's bottles and instructions — we are not the lab.
- PFAS testing is often a separate panel
PFAS scope is not bundled into every drinking-water package. Confirm certification before you order bottles.