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THE FAMILY FIRST WATER BLOG

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Folsom Lake Water Averaged 53 ppb of Chlorine Byproducts in Granite Bay Last Year. Here's What Trihalomethanes Are, and Why Scientists Are Counting Hundreds More.

LOCAL WATER & HOME

Folsom Lake Water Averaged 53 ppb of Chlorine Byproducts in Granite Bay Last Year. Here's What Trihalomethanes Are, and Why Scientists Are Counting Hundreds More.

Every utility in our area adds chlorine to the water for a good reason: it kills the bacteria and viruses that used to make people sick. But chlorine doesn't stop working once the germs are gone. It keeps reacting with the natural leftovers of leaves, soil and algae in the water, and that...

November 12, 2026

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Microplastics Are Falling With the Sierra Snow That Feeds Folsom Lake. Here's What That Means at Your Tap.

LOCAL WATER & HOME

Microplastics Are Falling With the Sierra Snow That Feeds Folsom Lake. Here's What That Means at Your Tap.

Snow falling over the Sierra Nevada eventually helps supply Folsom Lake, the American River, and many Sacramento-area water systems. A new UC Riverside study, published this week, measured something else arriving with that snow: plastic. Not in the ocean or a river downstream, but in freshly fallen flakes at remote mountain sites that a researcher had to ski to reach.

October 30, 2026

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