Residents with even-numbered addresses can water lawns only on Monday Wednesday and Saturdays. Odd-numbered properties get to sprinkle on Tuesday, Thursday and Sunday.
On any day, lawn watering allowed only between 4 a.m. and 9 a.m.
No tickets have been issued yet for breaking water restrictions, but 70 people have been issued warnings.
In a climate as wet as much of B.C., it might seem that any level of water rationing is unnecessary, but not so, according to Metro Vancouver senior engineer Marilyn Towill.
"That water needs to last the entire region until we get our big recover rains in the fall, or as far as November," Twill said.
Homeowner Tina Grant has no problem turning off the tap for the season.
"I don't believe that we should waste our water watering the lawn in the summer. I let mine just die naturally," Grant said. “I think the water can be best used for things that we can eat.”
No restrictions on gardens
Residents are allowed to water their flowers and vegetables any time.
As the region continues to grow, water conservation will become more of a priority top keep infrastructure costs down.
Metro Vancouver wants to be able to put off building new facilities for as long as possible, because the costs are huge.
"If we have to raise a dam we're looking at $500 million to $1 billion that will all trickle down through our water rates," said Peter Navratil, Manager of Waterworks design for the city of Vancouver.
Metro lawn-watering restrictions are in effect until Sept. 30.