Example report
Sample Water Quality Report
Here's what a WaterHealthCheck report looks like. This is real data for Austin, TX — sourced directly from EPA SDWIS and UCMR5 monitoring records.
Austin has interesting data: detected PFAS above the new EPA MCL, plus disinfection byproducts well above EWG health guidelines — despite being within EPA legal limits. This is the gap the tool is designed to surface.
Water Health Check Report
Austin, TX — Austin Water
Data source
EPA SDWIS · UCMR5
Fair
4 of 6 contaminants above EPA
or EWG guidelines
Who drinks this water?
Pregnancy profile active
TTHMs and HAA5 are priority-flagged for pregnancy. Disinfection byproducts are associated with adverse birth outcomes in epidemiological studies. PFAS above EPA MCL is also flagged as a foetal thyroid concern.
Contaminant results
| Contaminant | Detected | Status |
|---|---|---|
| PFOSPer- and polyfluoroalkyl substance. Regulated April 2024. | 4.75 ppt | Above EPA MCL |
| PFHxSPFAS compound. Within EPA limit, above EWG health guideline. | 4.77 ppt | Above EWG guideline |
| Total trihalomethanes (TTHMs)Disinfection byproduct. Within EPA limit, significantly above EWG guideline. | 41.7 ppb | Above EWG guideline |
| Haloacetic acids (HAA5)Disinfection byproduct. Within EPA limit, significantly above EWG health guideline. | 26.1 ppb | Above EWG guideline |
| Lead (90th percentile)No detectable lead at 90th percentile sampling. | ND | Not detected |
| ArsenicLow level detected; within EPA MCL. | 0.3 ppb | Within EPA limit |
Filter recommendation
NSF 58 certified reverse osmosis recommended
PFOS above the EPA MCL requires NSF 58 certified RO to reduce effectively. This also addresses TTHMs, HAA5, and arsenic. An NSF 53 carbon block alone is insufficient for PFAS at these levels.
About this data
Annual compliance monitoring results from Austin Water, pulled from the EPA Safe Drinking Water Information System.
PFAS results from the Fifth Unregulated Contaminant Monitoring Rule — the largest PFAS dataset in U.S. public water history.
Health-based benchmarks derived from peer-reviewed toxicology, stricter than EPA legal limits. Used as comparison only.
Every report includes
All detected contaminants compared against EPA limits and EWG health guidelines
Household-calibrated context — different flags for pregnant, infant, longevity, and general profiles
Filter recommendations matched to what your specific utility reports
Source links so you can verify every number in the original data
A water quality score (0–100) based on number and severity of exceedances
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