Dusty's crew didn't pump the wastewater into the basin...
Sorry for barging in...
I was busy redecorating.
Scene from the beginning of chapter 6. A stranger grabbed abbey's neck and she bit his arm. On page 59 it states, "Bald crooked-nosed guy grabbed my sister around the neck...Abbey clamped down, the stranger howled...I socked him, a kidney shot." This proves, at the beach a stranger with a bald-head grabbed Abbey and she clamped down on his arm. When the stranger shook free, he wanted to smack Abbey but Noah, a witted brother kicked the stranger and he fell.
Noah goes to visit and "update" his father about the news headline and the family's behavior prior to that. This is concluded with a chat about Dusty and the boat. Noah informs Paige Underwood how Abbey and him snuck up to the docks and saw what they were not expecting. Dusty and his crew were discarding sewage waste properly legally.
This scene is basically the ending of chapter 6. Shelly and Noah chat for a while as Shelly was redecorating her house. Noah stopped at Shelly's house because he wanted to see Lice Peeking and inferred he was in Shelly's home. He noticed Shelly had busted her leg by kicking a toilet. After finding out Peeking was nowhere to be found, he wanted to return home, but was forced to stay and heard the very words he did not expect hearing. "Noah I think I can help you."