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Mike Stephen talks with Richard Lanyon, former executive director of the Metropolitan Water Reclamation District of Greater Chicago, about the history of Chicago’s sewer system as detailed in the second book in his four-book series Draining Chicago: The Early City and the North Area; chats with BareItAll Petfoods co-founders Logan Honeycutt and Michael Cody about saving the environment by turning invasive Asian carp into dog treats; and checks in with Plastic Crimewave (aka Steve Krakow) about 1960s Indiana-based horn rockers The Bare Facts for this week’s edition of The Secret History of Chicago Music. Meanwhile, we discuss how the CTA is renting parking spaces under the Brown Line. This week’s local music is provided by Walcot.

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