no part of Lehi High School, nor Alpine School district. The football program is under www.theucfc.com (Utah County Football Conference) each league has it's own district, etc. LehiYouthfootball.com is where you can find coaches, and Lehi League President, etc. that is where you will find the info you need or at least someone who can get you to the right spot.
Source: I am Head Coach for a Lone Peak team and my boys have played in this conference for about 10 years now.