The increased fees apply to about 1,600 customers that have separate meters for irrigation and indoor water use.
Officials are encouraging community members to take advantage of a rebate program by converting lawns into water efficient landscapes.
The new regulations will assist San Francisco in meetings its 10% conservation request.
Today the SFPUC issued their mid-summer water conservation update.
THe changes were expected to save water - a lot of water - the real payoff is coming now as the state wrestles with its worst drought in decades.
Already locked in its third dry year, an ongoing drought could complicate California's battle against global warming and make it more expensive, officials said.
California water regulators voted Tuesday to approve fines up to $500 a day for residents who waste water
As of this week, total Hetch Hetchy Regional Water System storage stands at 64.5% of maximum storage capacity and all available snowpack has melted.