first week on landscaping jobsite: accidentally mulched over the irrigation lines

so im down in louisiana starting my first real gig as an apprentice and on day three we were laying down about 4 inches of pine bark mulch in this backyard bed. boss had me running the blower to clear leaves first, but i guess i got too aggressive and blew right over the drip lines without checking. ended up burying half the emitters under the mulch, and when the system kicked on later it was spraying everywhere like a damn fountain. spent the next two hours digging it all out by hand, fingers all pruney. boss wasnt too pissed since im new, but he made me redo the whole section with 2-inch hemlock instead to match the clients specs. learned quick to always map the irrigation first, especially with these clay soils down here that hold water weird. anyone got tips for spotting hidden lines without a locator?

proud of you for owning it and fixing it fast, thats how you build trust on the crew. been there 10 years and still make dumb calls sometimes, just keep asking questions.

frustrated as hell, my first week i ran over a sprinkler head with the zero-turn mower, cost the company 150 bucks to replace and i was on probation for a month. sucks but it toughens you up.