Become Rain Ready!
Get rain barrels, a rain garden, or a tree installed for FREE
Applications Open now until July 15, 2026
Welcome to the Green Stormwater Infrastructure incentive program, led by the City and County of Honolulu and Mālama Maunalua, that brings rainwater capture solutions to Oʻahu residents … for FREE!!
This is a Direct-Install Program that covers the cost of the installation of rain barrels, a rain garden, or a native tree.
Rainwater capture projects are a cost-effective way for residents to:
Protect Oʻahu’s precious groundwater
Reduce flooding in our communities
Mitigate stormwater pollution in streams and the ocean
Potentially soak up savings on water bills!
Need Assistance?
Partner organizations are conducting FREE rainwater assessments (using Follow the Drop App) for residences in the Windward and Ala Wai regions. If you live in one of these areas and would like assistance in identifying and submitting projects please click on the appropriate link to schedule an appointment:
Want to learn more about Rainwater Capture Solutions?
Apply Using Follow the Drop (Recommended)
Apply for the Direct-Install Program using the Follow the Drop app, available through the apple store, google play, and web-based site for desktop users.
Apply in Just a Few Easy Steps:
Step 1. Register in Follow the Drop
Create a user account in Follow the Drop. When registering, use the Account ID: oahu.
Step 2. Enable App Permissions
Allow Follow the Drop to access your photos and location while using the app so you can upload project information.
Step 3. Prepare a Photo (Desktop Users Only)
If you are using the desktop version, have a photo ready on your computer showing the area or downspout where you plan to collect rainwater. You will upload this image during the project entry process. If using the app on your mobile device allow the app to access your camera and you can directly upload the photo to document the site conditions of your project area or verfiy there is an existing downspout (rain barrel requirement).
Step 4. Enter Your Project Details
Follow the prompts in Follow the Drop to enter your project information. Each page includes instructions to guide you through the process - See the “i” on each page if you need further instructions .
Step 5. Submit Your Project
Give your project a name and select “Submit” to complete your entry. Optional - fill out the survey at the end. This will help us better shape the program in the future.
There is also a simple shortcut pathway for residents who only want to apply for a rain barrel only in Follow the Drop- Select “Rain Barrel Only” Button. For rain gardens or other rainwater capture solutions, Follow the Drop can help you to size you project - Select the “Add a Project” button.
Once you “Submit” the project Mālama Maunalua's review committee will review your application for consideration.
A tutorial on how to use FtD can be found in the video below. If you are not able to use Follow the Drop to apply please email us to inform us of the issue you are having and we can send you a paper form: runoff@malamamaunalua.org
Other Materials
Partners
