Osceola Water Works Addresses Water Quality and Lake Turnover

On January 14, 2026   /   General Water Works News, Important Water Works Updates  
water taste and smell in osceola iowa

Osceola Water Works has confirmed that West Lake, the source of Osceola’s drinking water, recently experienced a natural process known as lake turnover. This seasonal event can temporarily affect the taste and odor of drinking water, even though the water remains safe to consume. Lake turnover is the process of a lake’s water mixing from top to bottom. It happens naturally, most often in the fall and spring, when air temperatures fluctuate. During summer, lake water forms a top layer that is warm and heated by the sun and a bottom layer that is colder, darker, and denser. As temperatures

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Osceola Water Works Makes Annual Transition to Free Chlorine

On September 30, 2025   /   General Water Works News, Important Water Works Updates  

During the month of October, Osceola Water Works will make a temporary change in disinfectant to Free Chlorine that will take place starting October 2, 2025 and continue through November 5, 2025. This practice is endorsed by health authorities like the EPA and is not considered a public health risk.   Converting to Free Chlorine is a preventative, periodic maintenance practiced by many water utilities to ensure continued quality and integrity of the public water system.  While Chloramines are effective, it is necessary to convert to Free Chlorine, which is a stronger disinfectant used to proactively kill bacteria that can become

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First Phase of Water Main Replacement Project Nears Completion

On September 11, 2025   /   General Water Works News  

If you’ve driven down West Garfield or North Fillmore lately, you may have noticed Osceola Water Works making some big changes underground. The project, which began earlier this summer, focused on replacing the old cast iron water mains in the 200 block of West Garfield and the 600 block of North Fillmore with brand-new PVC pipe. This upgrade is a big step forward in improving the service reliability of Osceola’s water system. Looking at the project numbers, crews installed roughly 768 feet of new 6-inch water main, added two fire hydrants, six gate valves, and replaced ten service connections going

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Osceola Water Works Response to Regional Water Restrictions

On June 18, 2025   /   General Water Works News, Important Water Works Updates  

Recent headlines regarding water use restrictions across Central lowa may remind us of the Water Conservation restrictions that were in place in our community just a short time ago, due to drought and the quantity of water that was in West Lake, Osceola’s only source of water.  The restrictions issued by Central lowa Water Works (CIWW) are due to elevated nitrate levels in their primary water sources which are the Des Moines and Raccoon Rivers. The issue is not a lack of available water, but rather limitations on how much water can be treated to meet federal safety standards.  These

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Water: The Clear Drink of Choice

On May 20, 2025   /   General Water Works News  

In a world filled with tempting drink options that range from frothy coffees to fizzy sodas, it can be easy to overlook the cheapest and healthiest beverage: water. Yet, when comparing health benefits and cost against other popular drink choices, water consistently rises to the top as the smartest alternative for your body and your budget. Drinking water regularly plays an important part in keeping you healthy. It helps keep up your energy during exercise and day-to-day tasks, fights off fatigue and muscle cramps, and aids in digestion and detoxification. Hydration is also crucial for brain function, improving concentration, alertness,

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Revisiting West Lake Water Levels

On April 17, 2025   /   General Water Works News  

As Osceola Water Works closely monitors the water levels at West Lake – Osceola, Iowa’s only water source, it’s important to reflect on the past and to keep the future of Osceola’s water supply in focus. This week’s lake level measured 1070.37 feet above Mean Sea Level (MSL), which is five feet higher than it was at this time last year – but is still more than two feet below full pool level at 1072.7 feet above MSL. In April, 2024, West Lake Level was at 1065.00 and Osceola was in Section 3 – Water Emergency – Restrictions of the

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NOTICE: Osceola Water Works Makes Switch from Chloramines to Free Chlorine

On October 7, 2024   /   General Water Works News, Important Water Works Updates  
annual change to free chlorine

Starting on Monday, October 7, 2024 and continuing thru November 7, 2024, Osceola Water Works will make a temporary change in the disinfectant used in water treatment. Osceola’s annual switch from chloramines to free chlorine is a common practice in water treatment and OWW goes through the process every fall. Free chlorine is a stronger disinfectant than chloramine, but it cannot be used year-round because it creates byproducts that are regulated by the Environmental Protection Agency. The use of ammonia with chlorine – chloramines – reduces or eliminates these byproducts and helps Osceola Water Works continue to provide clean and safe

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Water Works Team Addresses Water Quality at Lower Levels

On November 13, 2023   /   General Water Works News, Important Water Works Updates, Newsletters  

With the lower levels of water in West Lake, quality challenges have become more apparent and require a change in the disinfection process. To help mitigate bacteria and other issues at lower levels in West Lake, a free-chlorine disinfection process will begin.

Click through to learn what you can do about the changes in your water…

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NOTICE: Watch for Water Works Annual Treatment Change

On October 6, 2017   /   General Water Works News, Important Water Works Updates  
water treatment, fire hydrant

Starting in October, Osceola Water Works will begin transitioning to winter maintenance and will be making a change in the water treatment process. While residents may notice a difference, there will be no cause for alarm. In early October, the water works department will begin their annual fire hydrant flushing program. This process allows OWW to perform routine maintenance on the hydrants and to clean out sediment that has settled in the water mains. Department employees will open the fire hydrants and allow them to flow freely for a short period of time. Residents may notice a slight discoloration or trace amounts

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Meet Your Osceola Water Works Board!

On July 19, 2016   /   General Water Works News  
osceola water works board members, osceola water works clean water taste and odor

The Osceola Water Works Board works hard to provide the community safe, good-tasting water at a reasonable price. Here is a quick snapshot of your five Osceola Water Works Board Members!   My name is Laura Castro, my family and I have been part of the Osceola community since January 2001. During my free time I like to spend time with my family, work out and I watch comedy series on Netflix. Currently I work as an Administrative Assistant at Clarke County Public Health. My responsibilities range from overseeing our Vaccines For Children Immunization, our Care For Yourself Program that provides breast

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