Antimony in Tap Water
Antimony is a metal that can enter drinking water from natural deposits and from discharge related to petroleum refineries, fire retardants, ceramics, and electronics.
Natural erosion of mineral deposits; discharge from refineries, and from fire-retardant, ceramic, and electronics manufacturing.
- 1Natural mineral deposits
- 2Petroleum-refinery discharge
- 3Fire-retardant and electronics manufacturing
A result is read with its context
This contaminant is tracked through federal and state compliance monitoring. PurityMap does not yet publish a per-system measured value for Antimony; this page is a reference explainer. To learn what is in your own water, check your utility’s Consumer Confidence Report (CCR) or use a certified home test.
- Above reference
- Evidence exceeds a reference level.
- Detected
- This substance was found in the monitoring record. Being present is not the same as being above a reference level, and this signal does not say which.
- Not detected
- Somebody looked and the laboratory reported nothing above its reporting limit. This is a result, and it is not the same as nobody looking.
- Not monitored
- No sampling for this substance has been reported for this system. Nothing is known either way, and an empty row is not a clean one.
No city results or violations published yet
- MeasurementsPendingNo per-system values
PurityMap does not yet publish a measured value for antimony.
- ViolationsCheckedNone on the federal record
No city in PurityMap’s record has a antimony violation in EPA SDWIS since 2016.
- CitiesPendingNo detections on record
No city in PurityMap’s record shows antimony detected.
This fills in as monitoring data is published. Until then, your utility’s Consumer Confidence Report lists its results, or use a certified home test.
What can carry a antimony reduction claim
- Reverse osmosis
Semi-permeable membrane separation removing dissolved minerals, heavy metals, and persistent fluorinated chemicals down to 0.0001 microns.
- Coagulation / filtration
Boiling does not remove a dissolved chemical compound and can concentrate it. Many pitcher and refrigerator filters carry no verified claim for a compound like this at all.
A finding establishes the need, the need names the capability, the capability requires a verified certification. No product appears before that sequence completes. Filter Finder →
Frequently asked
Answers cite the same records as the page. How PurityMap analyzes water data
Antimony is a metal that can enter drinking water from natural deposits and from discharge related to petroleum refineries, fire retardants, ceramics, and electronics.
The enforceable federal limit is 0.006 mg/L / 6 µg/L (MCL). The health-based goal (MCLG) is 6 µg/L. PurityMap reads every measurement against its stated benchmark and never sets its own.
Natural mineral deposits, Petroleum-refinery discharge, Fire-retardant and electronics manufacturing.
Sustained exposure above the limit is associated in studies with increases in blood cholesterol and decreases in blood sugar. The enforceable limit is set below levels linked to those effects.
Treatment technologies commonly certified to reduce Antimony include Reverse osmosis, Coagulation / filtration. Match the exact certified claim to your water before buying. Holding a format is not the same as holding the claim.