Water restrictions in Thornton, CO — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Thornton enforces strict water conservation with assigned watering days. The city invested heavily in northern Colorado water rights from the Thornton Water Project pipeline. Summer irrigation limited to 3 days per week.
Thornton enforces mandatory watering schedules through its water utility. Summer lawn irrigation limited to 3 assigned days per week based on address. No watering between 10 AM and 6 PM. Thornton invested significantly in the Thornton Water Project, securing water rights from northern Colorado agricultural sources to support its rapid growth. The city's water supply includes South Platte River alluvial wells and the Northern Colorado water pipeline. Xeriscaping and water-efficient landscaping encouraged with rebate programs.
First offense: written warning. Second: $50 fine. Third: $100. Subsequent: escalating fines and possible water restriction.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Thornton, CO
Thornton prohibits storing abandoned, inoperable, or unregistered vehicles on public streets or visible on private property. Vehicles may be tagged and towed...
Thornton, CO
Thornton regulates electric vehicle charging infrastructure for residential and commercial properties. Building codes may require EV-ready parking in new con...
Thornton, CO
Thornton regulates overnight parking on public streets. Many areas restrict parking between certain hours or require permits for overnight street parking.
Thornton, CO
Thornton requires pool barriers meeting safety codes to prevent drowning. Fences must be at least 4 to 5 feet tall with self-closing, self-latching gates.
Thornton, CO
Thornton requires permits for retaining walls above a certain height, typically 4 feet. Engineering review may be required for taller walls.
Thornton, CO
Thornton restricts or prohibits intentional feeding of wildlife including deer, coyotes, and bears. Feeding wildlife creates public safety hazards and nuisan...
Side-by-side rule comparisons with other cities in Adams County.
See how other cities in Adams County handle water restrictions.
See how Thornton's water restrictions rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.