Is Lopez Island, Washington tap water safe?
9 water systems report serving Lopez Island. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
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Fisherman Bay Water Association
Serves 1,195 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 (2023).
D
Cape San Juan Water District
Serves 164 people · Groundwater · Full report →
10 health-based violations in the last 5 years; 3 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
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Mackaye Harbor Water District
Serves 133 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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Harbor on Fisherman Bay
Serves 84 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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Cattle Point Water District
Serves 63 people · Surface water · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
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Aleck Bay Park Water System
Serves 40 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 (2025).
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Milagra Water System
Serves 31 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 (2025).
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Sunrise Beach Association
Serves 27 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 (2025).
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Salish Sea Water System
Serves 26 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.