When they were talking about polutioned groundwater, somebody said we're not in Chinatown.
Langston's remark about how "fracking" sounds like a sci-fi expletive
Nick says "I'd buy that for a dollar" which is a famous line from RoboCop
When character acted by Catherine Willows wanted to nail gas company, her boss said she's not Erin Brockovich. Also Marg Helgenberger played a victim of the water pollution in Erin Brockovich.
They talked about the title "Fracked" and the character played by Laurence Fishburne said it's like a curse expression ["fracking"] from the scifi show.
The reporter asks Langston if he has heard of "fracking". He then states that it "sounds like a sci-fi expletive". Note also that Det. Reed is played by Katee Sackhoff who plays Starbuck in BSG.