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Image of a 1924 water tower with the Frisco Logo on it.
Monday, July 18 - Sunday, July 24
The North Texas Municipal Water District (NTMWD) is requesting customers reduce their water use immediately, especially outdoor water use. This call to action is due to production quantity, and not water quality. Our water supply is safe to drink and use!  NTMWD took one of four treatment plants at its Wylie complex off-line for critical maintenance on Saturday, July 16.  Read the full release at this link.
While data from Frisco’s weather station recommends .75 inches of water this week, please don’t run your automatic sprinkler system more than one day this week on your regularly scheduled trash collection day. This week’s recommendation is impacted by the NTMWD request to limit outdoor watering.
The hot, dry weather has the City of Frisco nearing record water usage. Please consider these alternative methods of outdoor watering which are allowed in addition to your once-a-week watering schedule: Hand-held hoses, driplines and tree bubblers. These are good methods to water your lawn, landscape and foundation during this extreme heat.
Time-of-day watering guidelines are critical this time of year!
Irrigation controllers should not be set to run between 10 a.m. and 6 p.m. during Daylight Saving Time (DST). Running your sprinklers in the early morning and evening helps minimize water loss due to evaporation.

Join us for a FREE WaterWise Workshop! Space is limited. Learn more and register with the links below:
North Texas homeowners are often tempted to change the settings on their sprinkler controllers to “swamp mode” in summer to help heat-stressed plants. While some additional watering in the summertime may be needed, steep increases in water consumption can lead to high water bills and don’t benefit your lawn.

Avoid surprises on your water bill! By regularly checking your sprinkler program settings this summer, changes made by other family members or hired contractors can be noted and adjusted, if needed. Homeowners are often “caught unawares” by three programming issues that waste water and money:
  • Running the entire system multiple times in one day. Running your entire system twice will use twice as much water. Running your entire system twice in the morning and twice again in the evening will use four times as much water, and increases in usage like this will eventually appear on a future water bill. Even in scorching summer temperatures, usually only a few select zones need additional cycles. These zones tend to be located in sunny areas facing west in the afternoon. When setting additional run times, consider a program that focuses on only these “critical” zones, rather than the entire system.
  • Forgotten settings for a second start time or “B” program. Once systems are set to run multiple times in one day, many homeowners forget about the new settings. Systems continue to run with the altered settings for months afterwards – long after the need for additional water has passed. If you do choose to run portions of your system multiple times, such as a second start time or an added “B” program, don’t forget to deactivate it once it is no longer needed.
  • Adding too many minutes to the program schedule in one cycle. In North Texas, adding more minutes to sprinkler run times does not equal more water for your plants. Heavy clay soils expand as they are hydrated, and once they reach their saturation point, water can no longer penetrate them. That water runs unused from your landscape into the street – which creates the potential to receive a water violation. To prevent this, set your controller for shorter run times, and add additional cycles if necessary. Be sure to reduce the settings as additional water is no longer needed.
Not sure what your sprinkler system is doing? Schedule a free sprinkler system checkup with one of our licensed irrigators to learn more about program settings on your controller. Don’t wait until the last minute to schedule your free check-up! Frisco’s sprinkler checkup program is popular in the summer months, and appointment dates are first-come, first-served.
As temperatures begin to increase, you may need to run an extra cycle on your designated watering day if allowed by the city. It's important that your sprinkler system is set to the correct manual program, so that water is being used appropriately. Jo is here to help demonstrate "How to Set a Manual Program on a Hunter Controller."
For months you've gotten their advice, now it is time to meet the Licensed Irrigators answering your questions!

This week's Licensed Irrigator:
Juanita “Jo”  Ostertag

Bio: Jo has been with the City of Frisco’s water resources department since 2019. She joined the department as a licensed irrigator through TCEQ and has since obtained her Backflow and Inspectors license through TCEQ.
Jo was born in Washington but has also lived in Wyoming and North Dakota before moving to Texas. She enjoys hiking with her 2 dogs and traveling with her husband. Jo is a member of the Grayson County Beekeepers association and enjoys taking care of her ducks .
You've got questions. Our licensed irrigators have answers. 

This week's question:
I have 2 Rachio Sprinkler Controllers, I am wondering, I have the "brown weeping tubes" in My flower beds, around my foundation and on My parkways.  My question is; How long do they need to run?  I seems that nothing gets enough water with these type of pipe?

Answer: I recommend setting a separate program for your Driplines. You can create a Fixed schedule that runs 3-4 days a week, driplines should run between 20-30 minutes on the days that its scheduled to run.

- Jo Ostertag, Senior Licensed Irrigation Inspector

Want your questions answered? Email us at
FREE Irrigation Sprinkler Checkups
Conserve water and save money! Frisco's licensed irrigators offer free inspections to residents. Please be aware that our free Sprinkler Checkup program is extremely popular and there is currently a wait list going into August. 

Use the myFrisco app or call 972-292-5800 to schedule your appointment.
GPCD: Frisco's Water Statistics
The average daily water usage per person in Frisco is known as the GPCD. Calculations are obtained by dividing the total number of gallons used in Frisco by our city's population.

This week in Frisco, the GPCD was 301.
Last week, the GPCD was 286.
2022 Water Quality Report
with the Texas Commission on Environmental Quality and exceeds all state and federal drinking water standards. Learn more by reviewing the Superior Rating. The City of Frisco is proud to let its customers know they receive safe, high-quality drinking water. Frisco’s water system has an Annual Drinking Water Quality Report.
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