Event response guide
Neighbor Contamination Alert What To Do
Use this page to respond quickly to nearby contamination alerts without panic
Event-driven
Incident-response household
Decide what to retest, inspect, or escalate after a specific event
Decision router
Start with this signal and get the next move
This page is an entry point into the decision tool. The guide below explains the reasoning after you know what you want to do next.
Event-driven
Next test or decision path
Public explanation after the route
Why this route fits the signal
Use these answers to understand the decision, not as a replacement for the input and result flow above.
What this usually means
Who should act faster
What not to buy first
Start with this recent change
Immediate orientation
What to do now
Use alternate drinking source while planning certified confirmation testing
Verification path
What to test or compare next
Target likely contaminants and coordinate with local guidance
Next decision paths
Where to go from here
These links are selected from the same problem graph so the next page changes the input, evidence, or action instead of repeating this guide.
Related contaminant reads
Use named analyte pages to turn a clue or comparison into a clearer testing plan.
Related regional reads
Use regional pages when geology, regulation, or state testing pathways change the answer.
Related authority reads
Use authority pages to tighten your method, trust, and interpretation discipline.
Related symptom reads
Use symptom pages when the issue is visible but your data quality is still weak.
Related comparison reads