There is no “bright-line” rule for when an ordinary layperson will consider a “release” of harmful substances in or around a residential structure to be “environmental pollution” rather than an “ordinary act of negligence.” One can imagine the Villa Los Alamos court just as easily analogizing the release of asbestos fibers from asbestos-containing building materials in a residential building to be an “ordinary act of negligence” on par with pesticide contamination a la MacKinnon rather than “environmental pollution” a la Miller. The clever insurance coverage attorney will start framing and controlling the analogy early on.