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Suburban Water Systems-San Jose water quality

EPA test results and violation history for Suburban Water Systems-San Jose in California. Public water system ID CA1910205. Serves ZIP codes 91723, 91744, 91745, 91748, 91789, 91790, 91791, 91792.

NDmax PFOA, ppt (limit 4)
NDmax PFOS, ppt (limit 4)
4of 29 PFAS detected
—lead, ppb (90th percentile)

ND = not detected. PFAS from EPA UCMR 5 (2023–2025); lead and violations from EPA SDWIS.

What EPA records show for Suburban Water Systems-San Jose

  • PFAS detected (4 compounds)Detected: PFBA, PFBS, PFHxA, PFPeA. PFOA/PFOS were at or under EPA's 4 ppt limit.

Reverse osmosis if you want PFAS gone

PFAS showed up in your utility's testing, though under EPA's limit. If you want it out entirely, reverse osmosis is the option that reliably does that. A pitcher is the cheaper middle ground.

Best match for your water

iSpring RCC7AK Under-Sink Reverse Osmosis System

Under-sink reverse osmosis · $$
  • Good for: PFAS, nitrate, arsenic, fluoride, radium, lead and most other dissolved contaminants
  • Install: Under the kitchen sink, about an hour with basic tools
  • Manufacturer lists NSF/ANSI 58 testing. Reverse osmosis is the treatment EPA names as most effective for PFAS.
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Other good options

ZeroWater 10-Cup Pitcher

Pitcher · $
  • Good for: A low-cost first step for PFOA/PFOS and lead
  • Install: None
  • Manufacturer lists IAPMO certification for lead, chromium and PFOA/PFOS reduction.
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PUR PLUS Faucet Mount Filter

Faucet mount · $
  • Good for: Lead from older pipes, chlorine taste and odor, mercury, some pesticides
  • Install: Screws onto most standard faucets in a few minutes
  • ✓ Verified in NSF directory. PUR faucet mounts are listed by NSF under NSF/ANSI 53 for lead and NSF/ANSI 42 for chlorine.
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As an Amazon Associate we earn from qualifying purchases. Data comes from EPA public records, which cover your utility, not your home's own pipes.

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Questions

Does Suburban Water Systems-San Jose water have PFAS?

Yes. EPA UCMR 5 testing detected PFBA, PFBS, PFHxA, PFPeA. The highest PFOA result was 0 ppt and the highest PFOS result was 0 ppt, against an EPA limit of 4 ppt each.

Is Suburban Water Systems-San Jose tap water safe to drink?

Lead from home plumbing isn't captured by utility data, so a certified filter is worthwhile in older homes.

What water filter should I use in Suburban Water Systems-San Jose's service area?

Reverse osmosis if you want PFAS gone. PFAS showed up in your utility's testing, though under EPA's limit. If you want it out entirely, reverse osmosis is the option that reliably does that. A pitcher is the cheaper middle ground.

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