Dictionary.com
Thesaurus.com

on-site

American  
[on-sahyt, awn-] / ˈɒnˈsaɪt, ˈɔn- /
Or on site

adjective

  1. accomplished or located at the site of a particular activity or happening.

    Faculty, staff, and graduate students have two options for on-site childcare.


adverb

  1. on or at a particular site.

    They treated the wounded on-site before putting them on a helicopter for evacuation.

Etymology

Origin of on-site

First recorded in 1955–60