The basic yearly checks
Yearly well tests commonly includes bacteria, nitrate, pH (how acidic the water is), and total dissolved solids (minerals and other dissolved material). Local geology, flooding, septic systems, agriculture, and nearby contamination can justify additional tests.
Do not automatically buy the largest test package
A broad package can cost much more than a targeted plan. IsMyWaterOK starts with the tests supported by the address context and checks county or state options before private lab pricing.
Use local health programs
County and state health departments may offer lower-cost sampling, test kits, or guidance. Availability and price vary, so the site tries to route the household to the local program rather than a generic national page.