The plan is looking to commit more than $900 million to private markets.
The pension disclosed two private equity commitments from May that totaled $60 million.
The plan agreed to extend a relationship with RVK that dates to 2006.
The retirement system added three private commitments at its board meeting last week.
The plan is seeking buyout, growth equity and venture capital strategies.
The plan made commitments with two existing managers’ latest funds.
The plan will receive private equity and real estate commitment recommendations at tomorrow’s meeting.
The plan recently committed $245 million total to two private equity managers and one hedge fund manager.
A San Francisco-based private equity firm has raised $180 million from endowments, foundations and other investors.
The plan made a $10 million growth equity commitment at its May meeting.