Des Moines Water Works is asking metro area customers – residential and commercial – to manage seasonal irrigation for the next several weeks, even as drought conditions throughout the state continue to improve.
Due to the recent historic nitrate concentrations found in the Raccoon and Des Moines Rivers, Des Moines Water Works is not currently pulling water from either river. The utility is able to meet current demand by relying on other water sources, including Maffitt Reservoir, Crystal lake and aquifer storage wells. If demand increases, Des Moines Water Works will have no choice but to start taking water from the heavily polluted rivers, and may be unable to remove nitrate in a manner that keeps up with high demand.
“Although drought conditions are no longer an immediate threat to Central Iowa, increased nitrate levels from agricultural run-off, coupled with high demand, puts Des Moines Water Works in a difficult position,” Bill Stowe, CEO and General Manager, Des Moines Water Works. “With the assistance of all metro customers using water wisely, Des Moines Water Works can effectively and efficiently use the available water supply to provide safe drinking water that does not violate nitrate standards.”
Wise use of water is defined as identifying efficient lawn irrigation practices, taking advantage of technological advances to eliminate waste, as well as being alert to and repairing leaking household fixtures or other large water consumption appliances in homes and businesses.
Wise water best practices for residential and commercial irrigation use include:
- Avoid lawn watering, whether from an in-ground sprinkler system or manual sprinkler, during the day time hours of 10:00 a.m. and 5:00 p.m. Evaporation from the sun is highest during this time period and less water is absorbed into the soil, meaning more water must be used to get the same effect than if watering is done outside these hours.
- Shift watering to no more frequently than the ODD numbered days of the week if your house address ends with an ODD number and EVEN numbered days if your house address ends with an EVEN number. For example, if your house number is “1521,” it is suggested that you water on the 1st, 3rd, 5th, 7th, and so on days of the month.
- Test the irrigation system each spring to ensure there are no leaking sprinkler heads and that each head is properly directing its spray onto the turf and landscape.