Pombo got donations directly from both Abramoff and Abramoff's associate, Kevin Ring. He's avoided having the House Resources Committee look into Abramoff's dealings despite requests that he do so. And an article from 2004 that no longer seems to be available online said of him:
CALIFORNIA REP. POMBO ATTRACTS RISKY INDIAN GAMING MONEY - Congressman Richard Pombo, longtime Congressional champion of agricultural interests in his state’s rural Central Valley country, and chairman of the House Resources Committee is raising so much money with his "Rich Political Action Committee: that some of his admiring supporters are worried. In an election year when his only opposition is a Democrat write-in candidate, Pombo’s PAC has been accepting significant contributions from some 31 Indian tribes, that together contributed some $76,000 according to the Political Money Line tracking service reports filed with the Federal Election Commission. Other contributions to Pombo’s PAC came from gambling concerns and farm groups, all of which, like Indian tribes, have issues that are subject to his Committee’s jurisdiction. As of the end of May, the total taken in since his PAC was organized in June of last year, totaled $300,000.
The Associated Press reported in late June that "at least eight tribes and tribal lobbyists gave the maximum of $5,000 each, including Jack Abramoff, who resigned in March from the Miami-based Greenberg-Traurig law firm" after the Washington Post disclosed enormous fees he had collected from Indian clients. One California tribe, the Barona Band of San Diego’s Mission Indians, contributed $5,000 to Pombo’s PAC during the Primary campaign this year and $5,000 more toward the General Election.
I think there's an excellent chance that he's one of the names involved in that forthcoming Abramoff plea bargain.