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How Oklahoma City supplements water during drought

A recorded drought response shows how Oklahoma City moved stored water from Canton Lake toward Lake Hefner to supplement the city’s drinking-water supply. Learn what the transfer involved, why some water did not reach Hefner, and why this public-supply action does not diagnose plumbing conditions inside a home.

The short answer
  • During the recorded hot, dry summer, Lake Hefner dropped about eight to nine feet.
  • Oklahoma City drew on backup storage it owns at Canton Lake and released water toward Lake Hefner.
  • The recorded release was expected to take about two weeks, while rain was still needed to refill both lakes.

Why drought lowered Lake Hefner

During the recorded hot, dry summer, Lake Hefner, one of Oklahoma City’s main drinking-water lakes, dropped about eight to nine feet. When the lake falls, Oklahoma City can draw on backup storage it owns at Canton Lake in western Oklahoma.

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      How the recorded water transfer works

      In the recorded transfer, Oklahoma City began moving about 5.2 billion gallons from Canton Lake down the North Canadian River toward Lake Hefner. The transfer was expected to raise Hefner about four feet while Canton dropped a few feet.

      The trip takes days, and dry riverbeds absorb some water before it arrives, so not every released gallon reaches Hefner. The release was expected to continue for about two weeks to supplement the city supply during drought.

        A public water-supply response, not a home diagnosis

        This transfer is described as a way Oklahoma City supplements its drinking-water supply during drought. It is a public water-supply example, not a diagnosis of a condition in your home’s plumbing.

        Moving water between the lakes does not replace rainfall. Rain is still needed to refill both lakes after the transfer.

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          Oklahoma City Water Supply | Lake Hefner & Canton

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          Canton Lake Water Quality | Plumbing in OKC

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          So, sorry. OKC, if your tap water tastes a little off later this month, it is not your imagination. Oklahoma City just moved about five point two billion gallons from Canton Lake toward Lake Hefner after Hefner dropped about eight feet over the summer. The city still treats what comes out of the plant, but what can change at the house is taste, smell, and how mineral-heavy the water feels while the two sources from Canton Lake and Hefner mix. And as Lake Hefner climbs back up, you may notice some differences. If the shower glass spots get worse, the ice maker tastes different, or the filter is clogged faster than usual, that is usually aesthetics and, and minerals, not necessarily a reason for panic. Um, a quicker water test tells you if a sediment filter, carbon, or a softener is actually worth it for your house. So how does your water taste at your home?

          Oklahoma City Water Supply | Lake Hefner & Canton

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          You're driving around, the grass is brown, and there's leaves on the ground as well, not because it's fall, but because we're in a drought, and it is incredibly warm and incredibly hot. It's been a long summer, and you can see the results at Lake Hefner. Hefner is one of Oklahoma City's main drinking water lakes, and it dropped about eight to nine feet through a very hot, very dry summer. When that lake falls, the city does not just wait and hope. It pulls from backup storage it owns at Canton Lake out in western Oklahoma. This round, Oklahoma City started moving about five point two billion gallons from Canton down the North Canadian River toward Hefner. The water is supposed to raise Hefner about four feet while Canton drops a few feet. The trip takes days, and dry riverbeds will soak up some of it before it arrives, so not every gallon makes it. So this is how Oklahoma City supplements the drinking water during a drought. It balances the two lakes, keeps the city supply stable, and keeps it releasing for about two weeks until the transfer is done. But rain still has to refill both lakes. Have you been watching Hefner shoreline change this summer? If you have, let us know in the comments.

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