Colorado HB 16-1005 allows Aurora residents to collect rooftop rainwater in up to two rain barrels with a combined maximum of 110 gallons, used only on the property of origin for outdoor purposes.
Rainwater harvesting in Aurora is governed by Colorado HB 16-1005, codified at CRS 37-96.5-103. Single-family and multi-family residential properties with four or fewer units may collect precipitation from a rooftop in up to two rain barrels with a combined maximum capacity of 110 gallons (for example, two 55-gallon barrels). Collected water must be used on the same property where captured, for outdoor uses such as lawn and garden irrigation, and cannot be used indoors or for drinking. Barrels must have a sealable lid to prevent mosquito breeding and avoid creating a safety hazard. Aurora does not require a separate permit for compliant residential rain barrels. Larger commercial or agricultural rainwater systems require a water right or approval from the Colorado Division of Water Resources due to the state's prior-appropriation doctrine. Barrels must not overflow onto neighboring properties.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Aurora code enforcement directly for current fines, enforcement procedures, and hearing options.
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