Is It Legal to Collect Rainwater in Colorado?

Collecting rainwater in Colorado is legal but comes with specific rules. You can gather rainwater for personal use, but there are limits and permits to consider. Understanding these laws helps you avoid fines and use water responsibly.

This article explains how rainwater collection works in Colorado, what the law allows, and common mistakes to avoid. You will learn about permits, water rights, and practical tips for collecting rainwater legally.

Understanding Colorado's Water Law Basics

Colorado follows the doctrine of prior appropriation, meaning water rights are based on who used the water first. This system affects rainwater collection because water is considered a public resource.

Even rainwater that falls on your property may belong to someone with water rights downstream. This makes collecting rainwater more regulated than in other states.

• Colorado law treats surface water and groundwater as public resources managed by the state.

• Water rights holders have priority to use water before others can claim it.

• Collecting rainwater without a permit can interfere with downstream water rights.

• The state encourages water conservation but within legal limits to protect all users.

Knowing these basics helps you understand why Colorado limits rainwater collection and requires permits in some cases.

Is Collecting Rainwater Legal in Colorado?

Yes, collecting rainwater in Colorado is legal but only under certain conditions. The state passed laws allowing limited rainwater collection for residential use without a water right.

You can collect rainwater from your roof into up to two rain barrels with a total capacity of 110 gallons. This water can be used for outdoor purposes like watering plants.

• The Colorado Rainwater Harvesting Act allows up to 110 gallons of rainwater storage per household without a permit.

• Collected rainwater must be used on the same property where it was collected.

• Using rainwater for drinking or indoor use requires additional treatment and permits.

• Exceeding the 110-gallon limit or collecting from large surfaces needs a water right or permit from the state.

This limited allowance helps residents conserve water while protecting existing water rights holders.

Permits and Water Rights for Larger Rainwater Collection

If you want to collect more than 110 gallons or use rainwater for more than outdoor purposes, you must apply for a water right or permit. This process ensures your use does not harm other water users.

The Colorado Division of Water Resources manages these permits. They review your application to confirm it complies with water laws.

• Applying for a water right involves proving your collection will not injure existing water rights.

• Permits may require measuring devices to track water collected and used.

• Using rainwater indoors or for irrigation on large properties often needs a permit.

• Permit holders must follow reporting and usage rules to maintain compliance.

Getting a permit can be complex, so consulting a water law expert is recommended if you plan large-scale rainwater harvesting.

Common Mistakes When Collecting Rainwater in Colorado

Many people misunderstand the limits on rainwater collection and accidentally break the law. Knowing common mistakes helps you avoid penalties.

Some errors include collecting too much water, using it improperly, or failing to get permits when needed.

• Collecting more than 110 gallons without a permit can lead to fines and orders to remove storage tanks.

• Using collected rainwater for drinking without proper treatment and permits is illegal and unsafe.

• Sharing collected rainwater off your property violates water rights laws.

• Ignoring state reporting requirements if you have a permit can cause legal trouble.

Following the rules keeps your rainwater collection legal and helps protect Colorado’s water resources.

Practical Tips for Collecting Rainwater Legally

To collect rainwater legally in Colorado, follow simple steps. These help you stay within the law and use water efficiently.

Proper setup and maintenance also reduce risks of contamination and damage.

• Use up to two rain barrels with a total capacity of 110 gallons for outdoor watering without a permit.

• Keep rain barrels covered to prevent mosquito breeding and debris entry.

• Use collected water only on your property and for allowed purposes like gardening.

• Consult local water authorities before installing larger systems or using rainwater indoors.

These tips help you enjoy rainwater harvesting while respecting Colorado’s water laws.

Enforcement and Reality of Rainwater Collection Laws

Colorado enforces rainwater collection laws to protect water rights but generally focuses on larger violations. Small-scale collection within limits is rarely targeted.

Authorities may inspect properties if complaints arise or if large systems operate without permits.

• Enforcement mainly targets unpermitted large-scale rainwater harvesting that affects water rights.

• Small rain barrel use for gardening is widely accepted and low risk for enforcement action.

• Water districts may provide guidance and support for legal rainwater harvesting.

• Ignoring laws can lead to fines, removal orders, and legal disputes with neighbors or water users.

Understanding enforcement helps you weigh risks and benefits of rainwater collection in Colorado.

Environmental Benefits of Rainwater Harvesting

Collecting rainwater helps conserve water and reduce demand on municipal supplies. It also lowers runoff that can cause erosion and pollution.

Colorado’s dry climate makes rainwater harvesting a useful tool for sustainable water use when done legally.

• Rainwater harvesting reduces strain on rivers and reservoirs during dry periods.

• Using rainwater for irrigation saves treated drinking water for essential uses.

• Proper rainwater collection reduces stormwater runoff and protects local waterways.

• Encouraging legal rainwater use supports community water conservation goals.

Respecting legal limits ensures these benefits do not come at the expense of other water users.

Conclusion

Collecting rainwater in Colorado is legal but limited. You can use up to 110 gallons in rain barrels for outdoor watering without a permit. Larger or indoor uses require permits and water rights.

Understanding and following Colorado’s water laws helps you collect rainwater safely and legally. Avoid common mistakes and consult experts if you plan bigger systems. This way, you can conserve water while respecting the rights of others.

FAQs

Can I drink rainwater collected in Colorado?

Drinking rainwater requires treatment and permits. Without proper filtration and approval, it is illegal and unsafe to use rainwater for drinking.

Do I need a permit to collect rainwater from a large roof?

Yes, collecting rainwater beyond 110 gallons or from large roofs usually requires a water right permit from the state.

What happens if I collect more rainwater than allowed?

You may face fines, be ordered to remove storage tanks, and risk legal action for violating water rights laws.

Can I share collected rainwater with neighbors?

No, collected rainwater must be used on the same property where it was gathered to comply with Colorado law.

Where can I get help with rainwater collection rules?

Contact the Colorado Division of Water Resources or a water law expert for guidance on permits and legal rainwater harvesting.