Humble, TX Landscaping Rules: Water Restrictions (2026)

Humble receives its water supply from the City of Houston through a wholesale water agreement. As a result, Humble's drought contingency plan aligns with Houston's staged water conservation measures. Under normal conditions, Humble encourages voluntary conservation including watering lawns during early morning or evening hours and using automatic shutoff nozzles. When drought stages are declared, mandatory restrictions take effect. Stage 1 (Voluntary) encourages reduced outdoor water use. Stage 2 (Mandatory) limits landscape irrigation to two days per week based on address number (odd/even) and prohibits watering between 10 AM and 6 PM. Stage 3 (Severe) reduces watering to one day per week. Stage 4 (Critical/Emergency) prohibits all outdoor watering. Hand watering with a handheld hose with automatic shutoff nozzle is generally permitted during Stages 1 through 3. Drip irrigation systems face fewer restrictions than sprinkler systems. Car washing at home may be restricted during higher drought stages. Commercial car washes using recycled water systems are typically exempt. The city notifies residents of drought stage changes through utility bill inserts, the city website, and social media.