You are now in San Diego County category.

The San Diego County Water Authority has such an oversupply of drinking water that it just dumped half a billion gallons into a lake. The Sierra snowpack is 130 percent of normal, its greatest total in five years. And rainstorms will continue to drench parts of California off and on for months.

But now is not the time to ease up on water conservation efforts, in San Diego or elsewhere.

So we applaud this week’s sensible action by the State Water Resources Control Board. The agency extended the state’s emergency conservation mandate through October while easing restrictions on water suppliers to account for regional differences in climate, population growth and new supplies in places such as San Diego County, where a desalination plant just opened in Carlsbad.

State water regulators voted Tuesday to extend emergency conservation measures because of a drought, even though an increase in rain and snow this winter has improved California’s snowpack.

But with the drought still severe, conservations efforts fell off in December. Officials said residents used 18 percent less water than in December 2013, but that was the worst showing in seven months of tracking and fell well short of Gov. Jerry Brown’s goal of 25 percent.

As state water regulators consider extending drought restrictions though the fall, officials reported Tuesday that urban Californians had reduced their water use by 18.3% during December.

The savings, which are compared with December 2013 water usage levels, were the smallest in seven months of reporting and put California’s cumulative savings at 25.5%, down from 26.3% in November.

San Diego’s overabundance of water during one of California’s worst droughts has reached a new, absurd level. The San Diego County Water Authority has dumped a half billion gallons of costly drinking water into a lake near Chula Vista.

Now that drinking water has been poured into a lake, the water must be treated a second time before humans can consume it. And here’s another kick in the gut. The drinking water that’s now been dumped into the lake includes desalinated water, some of the most expensive treated water in the world. Water officials will now have to spend even more money to make the once-drinkable desalinated water drinkable once again.