A Democrat, she represented the 3rd Senate District, which encompasses the Sacramento–San Joaquin River Delta region and portions of the North Bay.

[3] In addition, Wolk served on numerous Select Committees including Biotechnology; California Children's School Readiness and Health; Domestic Violence; Growth and Infrastructure; Ports; Water, Infrastructure and the Economy; Rural Economic Development; and Wine.

[3] In 2007, Governor Arnold Schwarzenegger signed many Wolk-authored bills including legislation to improve flood protection in flood-prone areas of California's Central Valley; improve safety on a treacherous stretch of State Highway 12; require more planning for state parks and recreation opportunities for the Central Valley; and provide the Department of Fish and Game with the authority to control highly invasive species that threaten California's water delivery and natural ecosystems.

[3] Wolk has been honored by many organizations for her public service, including the Planning and Conservation League, which named Wolk its 2007 Legislator of the Year for her leadership in water policy and legislation, and for championing a landmark package of flood protection bills to strengthen flood protection in California's Central Valley and Sacramento-San Joaquin Delta region.

In 2008, Wolk ran for the California State Senate in the 5th district, the seat held by Michael Machado.