Find a State-Certified Lab
How to find a NELAP-certified lab in your state. Required for all official water quality testing.
Testing Cost Guide
Basic annual panel: $75–$150. FHA/VA loan panel: $150–$350. NJ PWTA: $300–$600. Complete cost breakdown.
DIY Kits vs. Certified Labs
When DIY kits are useful, what they can’t do, and why certified results are required for any official purpose.