Tap water quality for ZIP 95973
2 community water systems linked to this ZIP, largest first.
What this means for you in ZIP 95973
- Is it safe to drink right now?
- Based on the latest EPA data, Cal-Water Service Co.-Chico has no unresolved health-based violations from the past year. Water that meets federal standards is generally considered safe to drink for most healthy people.
- Should I use a filter?
- Yes, we recommend considering one. Average PFOS was above the 4 ppt federal limit (compliance deadline April 2029). Other regulated PFAS (PFHxS) also exceeded 2024 limits.
- What kind of filter?
- For PFAS, look for NSF/ANSI 53 (with an explicit PFOA/PFOS or total PFAS claim) or NSF/ANSI 58 reverse osmosis. See matched standards and product picks.
This is general information from public EPA data, not medical advice. Lead often comes from a home’s own pipes, so only a test of your tap can tell your exposure. If you are pregnant, caring for an infant, or have a weakened immune system, ask your doctor or health department.
Shown for the largest system linked to this ZIP. Check your water bill to confirm your provider.
Filters matched to Cal-Water Service Co.-Chico
FILTER PICKS
Look for filters certified (NSF, IAPMO or WQA) to these standards for the specific contaminant. Buttons open the maker’s page or an Amazon search; use “Check NSF listing” to verify a model’s claims. No affiliate links yet — grades are never sold.
PFAS (other)
NSF/ANSI 58 (RO, total PFAS claim)NSF/ANSI 53 (check claim)RO system with total-PFAS claim ~$300–600
Prefer units whose NSF/ANSI 58 listing covers total PFAS or named PFAS.
Search on Amazon → Check NSF listing · Not an affiliate link · disclosure
Certified filter (check contaminant list) varies
Open the NSF listing and confirm the exact chemical before you buy.
Search on Amazon → Check NSF listing · Not an affiliate link · disclosure
PFOA
NSF/ANSI 53 (PFOA/PFOS claim)NSF/ANSI 58 (RO)Aquasana Claryum or OptimH2O (PFAS claim) ~$100–350
Aquasana under-sink lineup; must list PFOA/PFOS on the certificate — check before buying.
View on Aquasana → Check NSF listing · Not an affiliate link · disclosure
Clearly Filtered Pitcher (PFAS claim) ~$110
Pitcher option with published PFAS reduction claims; verify NSF/IAPMO listing.
View on Clearly Filtered → Check NSF listing · Not an affiliate link · disclosure
Waterdrop G3 / G3P600 RO ~$300–500
Tankless RO; RO broadly reduces nitrate, fluoride, arsenic and many PFAS — confirm the certificate lists yours.
Search on Amazon → Check NSF listing · Not an affiliate link · disclosure
PFOS
NSF/ANSI 53 (PFOA/PFOS claim)NSF/ANSI 58 (RO)Aquasana Claryum or OptimH2O (PFAS claim) ~$100–350
Aquasana under-sink lineup; must list PFOA/PFOS on the certificate — check before buying.
View on Aquasana → Check NSF listing · Not an affiliate link · disclosure
Clearly Filtered Pitcher (PFAS claim) ~$110
Pitcher option with published PFAS reduction claims; verify NSF/IAPMO listing.
View on Clearly Filtered → Check NSF listing · Not an affiliate link · disclosure
Waterdrop G3 / G3P600 RO ~$300–500
Tankless RO; RO broadly reduces nitrate, fluoride, arsenic and many PFAS — confirm the certificate lists yours.
Search on Amazon → Check NSF listing · Not an affiliate link · disclosure
Chlorine/chloramine taste
NSF/ANSI 42Aquasana Clean Water Pitcher ~$35
Pitcher for chlorine taste/odor; check the NSF/ANSI 42 listing for the exact model.
Search on Amazon → Check NSF listing · Not an affiliate link · disclosure
Brita Elite Filter ~$20–40
Common faucet/pitcher option; confirm the 42 claim on the box.
View on Brita → Check NSF listing · Not an affiliate link · disclosure
Annual water quality report
Utilities must publish a Consumer Confidence Report every year by July 1. Find it on the utility’s website or ask them directly; EPA explains how. · Full report →
Water systems for this ZIP
C
Cal-Water Service Co.-Chico
Serves 110,473 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Lead 90th percentile below the action level (2023).
A
Youth With a Mission-Springs of Living W
Serves 150 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
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