Tap water quality for ZIP 94021

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

What this means for you in ZIP 94021

Is it safe to drink right now?
Based on the latest EPA data, Redwood Glen Camp & Conference Ctr 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 Redwood Glen Camp & Conference Ctr

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

A

Redwood Glen Camp & Conference Ctr

Serves 31 people · Surface water · 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 (2025).
B

Cuesta LA Honda Guild Inc

Serves 863 people · Surface water · Full report →
1 health-based violation in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2023).
B

County Service Area 7

Serves 300 people · Surface water · Full report →
1 health-based violation in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Loma Mar Mutual

Serves 65 people · Surface water · 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 (2025).
A

Bianchi Flowers Inc

Serves 65 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 (2024).
A

Redwood Terrace Mutual

Serves 56 people · Surface water · 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 (2026).
A

Camp Jones Gulch

Serves 44 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 (2026).
A

Oku Incorporated

Serves 35 people · Groundwater · Full report →
No health-based violations in the last 5 years; 4 monitoring/reporting violations; 3 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2022).
B

Camp Loma Mar

Serves 25 people · Surface water · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
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