Checklist · reviewed July 24, 2026

Catchment Water Testing Plan

Build a household catchment maintenance and water-testing plan while keeping health decisions tied to current Hawaiʻi guidance and test results.

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Maintenance plan

Map the water path

Roof and gutter materials, condition, nearby contamination risks, and cleaning practices are documented.Screens, first-flush or debris controls, tank cover, overflow, vents, and access are documented.Pump, pressure tank, controls, filters, disinfection equipment, bypasses, and plumbing are labeled.

Maintenance plan

Write the schedule

Equipment manuals and manufacturer replacement intervals are available.Filter, UV lamp/sleeve, tank, roof, gutter, pump, and pressure-system service dates are recorded.A current water-testing plan is selected using DOH guidance and qualified advice rather than a generic promise.Results, laboratory details, actions taken, and follow-up results are retained.

Maintenance plan

Plan for changing conditions

A plan exists for storms, ash, wildfire smoke, animal contamination, unusual color/odor, roof work, equipment failure, and extended power outages.Residents know when to stop relying on the system and seek current health guidance.Emergency drinking water and delivered-water access are planned.No one treats appearance, taste, or a single old test as proof of continuing safety.

Primary sources

Use current Hawaiʻi guidance

Individual household catchment systems are not a substitute for a regulated public water system. Maintenance and testing reduce uncertainty but do not create a permanent guarantee.

Map the water path

Write the schedule

Plan for changing conditions

Use current Hawaiʻi guidance

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