I graduated Hatboro-Horsham in 1998, and heroin was a problem even then in my larger friend circle (and I was a big sheltered nerd who lived in Horsham), due to the proximity to Philly (the "heroin capital of the US" at the time). One girl OD'd after I went to college. The school itself was pretty great academically and otherwise, as far as public high schools go, but the really good teachers were older and many retired I think, in the 2000s. From what I've heard, a combo of NCLB and 'zero tolerance' policies turned the school into kind of a hellhole (like many other schools at the time).