Castle Rock, Washington Water Quality Report
Water quality data for 2 water systems serving 4,426 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (1)
Violation
Unknown
Resolved Violations (130)
27
Jan 1, 2023 — Dec 31, 2023
27
Jan 1, 2023 — Dec 31, 2023
51
Jan 1, 2018
03
Jan 1, 2008 — Dec 31, 2010
03
Jan 1, 2008 — Dec 31, 2010
+ 125 more resolved violations
Frequently Asked Questions
Is Castle Rock tap water safe to drink?
Castle Rock's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Castle Rock tap water?
0 contaminants have been detected in Castle Rock's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Castle Rock?
Install a water filter rated for the specific contaminants found in Castle Rock's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Castle Rock have any water quality violations?
Yes, Castle Rock currently has 1 active violation. See the violations section above for details.