It looks like Splash Canyon is on Ynez across Winchester by the business park/gov’t buildings, but on the FWY side. I think it’s that stretch of land on the 15 North between Winchester and the 215. That’s a bit far from Harveston and a bit of a stretch as to motive of your landlord! You must have bionic ears!
As for the business park, i think that developer is Pacific Century Homes and they are pretty big here in town – think The Reserve, 3 projects in Redhawk, the development across from Promenade Mall on Margarita, Overland Business Park I and II, and that’s just in Temecula. Plus, they are breaking ground on a 55+ community at Margarita and HWY 79.
BTW, what’s going on with your postings about buying in Harveston and also your other posting about looking elsewhere here?