Colusa
Is Colusa tap water safe to drink?
Use extra caution — Colusa scores 50/100. This report aggregates EPA drinking water data across 0 local systems in Colusa. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 05:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Colusa.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Colusa?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Filter or no filter for Colusa water? Here's what the data says.
Baby Formula Safety
What new parents in Colusa should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Colusa, but it can affect plumbing longevity and appliance lifespan. With a score of 50/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Current records show no major contaminant spikes, making Colusa a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Colusa
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Colusa.
Frequently Asked Questions
Is Colusa tap water safe to drink?
Use extra caution — Colusa scores 50/100.
How many water systems serve Colusa?
Colusa is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Colusa?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Colusa.
What is the water quality score for Colusa?
The water quality score for Colusa is 50 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Colusa?
Current contaminant data for Colusa is being updated. Check back soon or search your specific address for the latest results.
Colusa Water Quality Summary
Colusa, CA receives a water quality score of 50/100 (Grade D) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Colusa's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.
Colusa's score of 50 is 40 points below the California state average of 90, and below the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our California water quality rankings report →
Get notified if Colusa's water quality changes
Free email alert when the EPA reports a new violation or boil-water advisory for your water system. No spam — just the alerts you asked for.
By subscribing you agree to receive occasional water-quality alert emails. Unsubscribe anytime. See our Privacy Policy.
Water Systems Serving Colusa (0)
Water system data coming soon for Colusa.
Check Your Specific Address
Water quality can vary by neighborhood in Colusa.
Related
Quick compare in California
Compare Colusa water quality: View all states · Contaminant library · How we score water quality