Irrigation Water Use Reduction Requested

Voluntary Reduction of Irrigation Water Use Requested
Posted on 06/28/2021
June 28, 2021
City of Pullman Maintenance & Operations Division

Call to Action: The City of Pullman is requesting that each water customer voluntarily reduce irrigation water use by 15%.

Although drought is a prolonged, and slow-moving disaster, impacts can sometime escalate suddenly and cause water supply disruptions in a matter of weeks; to minimize drought impacts we must work together. Annually, over the past five years, we have hit our highest water production day between July 31, and September 16. The average high use day since 2016 comes in at 5,596,400 million gallons. On June 25, 2021 4,803,000 million gallons of water were pumped for use in Pullman. This level of water use, at this point in the season, represents a trend that we do not want to continue, and we are asking users to reduce water use by 15% daily, for the next three weeks.

There are numerous ways to conserve water, indoors and out, many of which can be implemented immediately, and at no cost to the user. Outdoor water use is where we know we can see the largest savings during the drought paired with high temperatures that we are currently experiencing. While discontinuing the irrigation of landscaped spaces is the most effective way to realize the water savings we are looking to achieve, we recognize that is not a challenge everyone is willing to take on. We have engaged with local landscapers, and found out the following is the most effective way to continue irrigating, in the most minimal way possible:

• Water during the coolest part of the day, typically this will occur during the very early morning hours. Watering between 2-4 am will minimize evaporation and decrease the likelihood of fungus developing in your lawn and plants.
• Water less frequently, ensuring that the water soaks into the ground fully to encourage deep root growth, leading to higher resiliency and less need for frequent watering.
• If you do allow your lawn to go brown during this extreme time, it is not necessarily dead. It typically takes about one week for a lawn to go dormant, and a two to three-week timeframe for the grass to recover once irrigation resumes.

We ask that you strive to decrease your water use starting now, and continue until temperatures drop considerably. We appreciate your partnership as we work to ensure strong infrastructure for a safe and thriving community. Visit us at to follow our progress.