Loch Lomond Reservoir

End to watering season Oct 1.

Denver Water’s collection and service areas continue to face severe drought conditions, with historically high temperatures, low streamflows and reservoir storage far below normal. As a result, the Denver Board of Water Commissioners declares formal end to lawn watering season October 1.

Until that time, customers are still required to follow mandatory watering restrictions of two assigned days per week through Sept. 30, per the current drought restrictions that remain in place.

What is allowed after Sept. 30

  • Trees, shrubs and perennials may be watered any day with a hand-held hose with a shutoff nozzle or low-volume, non-spray irrigation (such as a drip system). They may not be watered by spray irrigation.
  • Annuals and vegetables may be watered any day with a hand-held hose with a shutoff nozzle or low-volume, non-spray irrigation, until the first frost. They may not be watered by spray irrigation.
  • Grass establishment is not allowed after Sept. 30.
  • An irrigation system may be operated for installation, repair, or reasonable maintenance, so long as the system is attended throughout the period of operation and water waste does not occur.
  • Hand watering is permitted any day of the week as needed with a hose with a shut-off nozzle. No watering between 10am and 6pm.

Current drought restrictions remain in effect until the board determines how and when lawn watering can resume. That means sprinklers need to remain off in spring of 2027 until further notice.

Click here to download the billing insert, including conservation tips and assigned watering days.