What is Rainwater Collection?

Rainwater collection, also called rainwater “harvesting,” is the process of capturing, storing and directing rainwater runoff and putting it to use - most typically for landscaping and gardening.

Facts About Collecting Rain Water:

• Rainwater collection systems vary from the simple and inexpensive to the complex and costly.

• Rooftop rainwater collection systems are simple, consisting of gutters, downspouts, and storage containers. Inexpensive rainwater storage systems commonly make use of an above ground container such as a barrel or plastic tank with a lid to reduce evaporation and bar access for mosquitos to breed.

• Any container capable of collecting the rain shedding from a roof or patio can be used as a rainwater harvesting system, but to be in conformance with Colorado water law, the container additionally must be equipped with a sealable lid.

• A maximum of two (2) rain barrels can be used at each household and the combined storage of the 2 rain barrels cannot exceed 110 gallons. Rain barrels can only be used to capture rainwater from rooftop downspouts and the captured rainwater must be used on the same property from which the rainwater was captured, for only outdoor purposes, including to water outdoor lawns, plants and/or gardens. Rain barrel water cannot be used for drinking or other indoor water uses.

Where can I learn more about Rain Water Collection?

• The CSU Colorado Stormwater Center carries extensive knowledge about laws, guidelines, FAQs and references for more information here.

• Feel free to reach out to us with any additional question(s) at info@coloradoraincatcher.com