The gist was, "Without some sort of recycling and/or use of in situ resources, meeting the lunar settlement goal of 100 people would require delivery of over 1 million kilograms of life-support consumables per year."
And then assuming a PLSS life support system you get to to needing about 5500kg of consumables delivered per person per year.
[1] https://www.liebertpub.com/doi/abs/10.1089/space.2015.0029