Tap water quality for ZIP 95045

6 community water systems linked to this ZIP, largest first.

What this means for you in ZIP 95045

Is it safe to drink right now?
Based on the latest EPA data, City of San Juan Bautista 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?
Optional. Nothing in this data strongly calls for one. Many people still filter for chlorine taste and odor.
What kind of filter?
For taste and odor (chlorine/chloramine), an NSF/ANSI 42 pitcher or faucet filter is enough. 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 City of San Juan Bautista

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.

Chlorine/chloramine taste

NSF/ANSI 42
Aquasana 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

B

City of San Juan Bautista

Serves 2,335 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
B

San Justo Mutual Water Company

Serves 166 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Hollister Ranch Estates

Serves 150 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2023).
B

Mission Farm R.V. Park

Serves 110 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A

Union Heights Mwc

Serves 98 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).
A

Los Madrones Mwc

Serves 39 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile above the new 10 ppb action level (LCRI, effective Nov 1, 2027); Lead 90th percentile below the action level (2023).
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