— LOCAL WATER-TESTING GUIDE
Water testing in Martin County: which test do you actually need?
A utility report, complimentary home screening and certified laboratory analysis answer different questions. Start with the water provider and the decision you need to make—not the largest test package.
- Use the correct utility report for provider-wide monitoring.
- Use field screening for property-specific hardness, TDS and treatment performance.
- Use a state-certified drinking-water laboratory for lead, bacteria, PFAS or another health-specific contaminant question.
Start with the correct Martin County water provider
Martin County includes Martin County Utilities, City of Stuart Utilities, Indiantown, South Martin Regional Utility and private wells. A county name cannot select the correct drinking-water report.
Martin County Utilities publishes annual monitoring, while the Florida Department of Health in Martin County directs residents to area laboratories for water sampling. Private-well owners are responsible for testing their own supply.
Confirm the bill or private-well status before collecting a sample. Keep potable water separate from irrigation, reclaimed water, river conditions and recreational-water advisories.
What can a complimentary home water check tell you?
A field visit can measure practical treatment conditions such as hardness and total dissolved solids, compare treated and untreated sample points, and document symptoms such as scale, spotting or disinfectant odor. Those measurements can support an equipment or maintenance decision.
It should never be presented as proof that water is free of lead, bacteria, PFAS or every other contaminant. Those questions require the correct sampling protocol and laboratory method.
Match the concern to the evidence
Test untreated hardness and record whether the result is grains per gallon or milligrams per liter.
Measure TDS at the relevant cold-water faucet. TDS is not a contaminant-by-contaminant safety test.
Confirm the provider, compare several cold taps and review current utility information before evaluating treatment.
Use a certified laboratory and follow its sampling instructions. Lead cannot be identified by taste, smell or appearance.
Contact the utility or health department and use certified microbiological analysis—not a hardness or TDS meter.
Select a laboratory certified or appropriately accredited for the requested drinking-water analyte and method.
How should a homeowner proceed?
- Identify the source. Find the provider on the bill and distinguish public drinking water from a private well, irrigation or reclaimed water.
- Read the public report. It describes the utility system, not the plumbing at one property.
- Document the symptom. Note whether it affects hot or cold water, one faucet or the whole home, and whether it began suddenly.
- Choose the narrowest valid test. Use field measurements for treatment decisions and certified laboratory testing for health-specific conclusions.
Related Martin County water guides
Provider-specific information and practical next steps.
Open the guide →Martin County water-provider directoryProvider-specific information and practical next steps.
Open the guide →Martin County Utilities reportProvider-specific information and practical next steps.
Open the guide →Find the provider for an addressProvider-specific information and practical next steps.
Open the guide →— COMPLIMENTARY FIELD CHECK
Need hardness or TDS from a Martin County property?
Request a property-specific check for treatment-related measurements. For lead, bacteria, PFAS or another health concern, use the certified-laboratory resources below.