Drought-pummeled lawns across Los Angeles County will be a little bit thirstier for 15 days in September when officials suspend outdoor watering in several areas to repair a leaking pipeline, the Metropolitan Water District of Southern California announced Monday.

The emergency repair will shut down the 36-mile Upper Feeder pipeline — which delivers water from the Colorado River to Southern California — from Sept. 6 to 20, the MWD said. The leak was discovered this year, and the pipeline has been operating at reduced capacity under a temporary fix while officials designed a more permanent solution.