San Jose, CA (95129)
San Jose Water
Health Violations 0
Filterable Contaminants
The Available Records Do Not Identify a Specific Contaminant for Filter Selection
EPA violation records for water systems serving this ZIP code list health-based violations, but none names a contaminant that this tool can match to a filter type. The ZIP code report lists them; home plumbing and unregulated contaminants are not covered.
Want to know exactly what's in your tap water?
EPA data describes the water system as a whole, not the water at your tap. A home water test measures what actually comes out of your faucet.
Water Filter Analysis for San Jose, CA
EPA SDWIS records for water systems serving ZIP code 95129 list health-based violations, but none of them names a contaminant that this tool can match to a filter type. Some health-based violations concern a treatment rule or a contaminant without a filter entry here, so they do not point to one filter choice.
Review the violation details in the ZIP code report and ask the water system what a violation means for the water at your tap before choosing a filter.
About This Analysis
This analysis uses data from the U.S. EPA Safe Drinking Water Information System (SDWIS), which tracks compliance monitoring for public water systems. Contaminant information in this report covers records dated within the past 5 years. Filter recommendations are based on NSF/ANSI certified treatment technologies proven to reduce each specific contaminant.
Records map ZIP 95129 to San Jose Water, a surface water system; service can vary by address. For the most accurate picture of your home's water quality, consider a professional water test.
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Frequently Asked Questions
How were these filters selected?
Filter information for this ZIP is informed by EPA SDWIS compliance records from the past 5 years; test your tap water or consult your utility for contaminant results. Filter types may vary by location; verify a product's certification for each contaminant of concern.
Do I need a whole-house or under-sink filter?
It depends on the contaminant type and your budget. Under-sink reverse osmosis systems can reduce drinking water contaminants such as lead, nitrates, and some PFAS when certified for those reductions; prices vary by model. Whole-house systems ($800–$2,000+) treat water where it enters your home, including water for showers and appliances; check each product's certification for the sediment, chlorine, or hardness issue you want to address.
How often should I replace filter cartridges?
Replace filter cartridges according to the manufacturer's schedule, which varies with water use and water quality. Check your filter manufacturer's guidelines and replace on schedule to maintain effectiveness.