Marin County voters have passed Measure A, a quarter-cent sales tax for nine years to maintain open space, parks and farmland in the county.

It required two-thirds approval, and had received 73 percent of the vote as of Tuesday night, according to unofficial results.

"I'm just relieved and thrilled," Marin County Parks Department director and general manager Linda Dahl said.

"I want to thank everyone in the community, the environmentalists the bicycle coalition, the farm bureau and the Board of Supervisors for voting to put the measure on the ballot. It's a wonderful night for us and now we're going to get to work," Dahl said.

The measure will raise an estimated $10 million a year. Sixty-five percent of the revenue will be used to protect or restore natural resources and maintain county parks and open space preserves.

20 percent will go toward protecting farmland and ranches from development and subdivision, and 15 percent will go to municipalities and special districts to manage their parks, open spaces and recreation programs and reduce wildfire risk.

The Marin United Taxpayers Association was critical of Measure A.

"With most of the county in open space, federal and state parks, or underwater, why vote for phantom spending objectives that only benefit the well-connected while ignoring the elderly, ill and the needy," Alex Easton-Brown said in the argument against the measure.

Voters in the Mill Valley School District appear to have approved Measure B, a $196 parcel tax for eight years intended to compensate for cuts in state funding to education. It required two-thirds approval and received 70 percent of the vote, according to unofficial results.

Shoreline Unified School District voters approved Measure C, an eight-year extension of an existing $185 annual parcel tax to support math, reading, writing, computer science, library and arts programs. The tax can increase by 2 percent a year.

Ross voters passed Measure D, an ordinance that replaces a municipal services tax with a special $950 parcel tax to maintain public safety services for four years. The special tax will expire on June 30, 2017.

Measure D required two-thirds approval and received 72.2 percent support.

Ross residents had regularly approved a four-year general tax for municipal services between 1984 and 2008, but the tax failed to pass in June.

Supporters said Measure D does not create a new tax but restores the revenue that had been coming in from the previous tax.

Voters in the Mesa Park Firehouse Community Park Agency appeared to have narrowly voted down Measure E, an annual $49 parcel tax for four years for maintenance and operation of Mesa Park. It required two-thirds approval, and had garnered only 65.4 percent of the vote as of Tuesday night, with some votes still to be counted.

Voters in the Stinson Beach Fire Protection District approved Measure F, which increases the district's appropriations limit.