Public water-quality datasets
We use public water data, EPA-linked records, and utility reports to build each ZIP report.
Audit Methodology
How the BaseWater audit works
The audit combines local water data with the answers you give us about your home. It helps us estimate risk and decide if a whole-home fix may make sense.
ZIP-to-utility mapping
Each ZIP is matched to the utility we believe serves that area. This can change when new data comes in.
Home details
Your answers about symptoms, plumbing age, tap-water use, family risk, and filters help shape the score.
Install-area limits
BaseWater only offers home visits and installs in covered Tampa Bay ZIP codes. Outside that area, you may only see a short preview or waitlist.
What affects your score
This is not a lab test from your sink. It is a risk score based on your ZIP data and your home details.
1
Risk from the utility tied to your ZIP.
2
How much tap water your home uses and how long you have lived there.
3
Older plumbing, well water, and other home details.
4
Kids, pregnancy, and other higher-risk signs.
5
How much your current filter setup may miss.
What the audit does and does not do
What it does
- Shows the likely utility profile for your ZIP.
- Shows water flags above health goals when the data supports it.
- Adjusts the result based on your home and family.
- Helps you decide if a free home water test is worth booking.
What it does not do
- It does not replace a tap-level lab test at your home.
- It does not guarantee a specific contaminant level at your faucet.
- It does not promise installation outside active service ZIPs.
- It is a guide, not medical advice.