Would it be weird at all if i asked my friend to wash her hands when she gets to work?

Why don’t you go ahead and speak to her, since it’s a matter of health and safety, and then come back here and tell us if it was weird?

No, probably should be doing that anyway with Covid still out there. A common sense precaution

As a landlord, I would put a notice of the coliform with the hand-washing suggestion in writing.

I mean, if you don’t work with her, yeah. I’d just say, “hey the water has Coliform in it, make sure you wash your hands at the store or work!”. Just phrase it casually. Don’t say “wash your hands when you get to work” like you are giving her a command. Just be vague and recommend it.

@Cindy1302 About 35 years ago our well suddenly had a coliform problem. I don’t remember the units but the legal limit was under 2 coliform counts per unit. Our well was always zero when we had it tested by the county. One day the water color looked different. We had the water tested and it was 150! I tried shocking the well with bleach and that worked for a day.
I tok the cap of the well and could see the top of the water column. The surface is usually smooth like a mirror. But this time it was ripply like something was dripping into it. The drip was surface water (tainted with animal waste) leaking into the casing.
I fixed it by digging down to the place where the line from the house goes into the well casing, about 5 feet below the surface, and sealed it up with a tarlike substance specifically made for the job. I don’t remember the name. There were no more drips.
After a bleach shock my coliform count returned to zero.

So…. Fix your well. It is not a difficult job – unless the well casing is cracked requiring a professional.
Invite a friend over to help dig.

@Cindy1302 I’m with @LuckyGuy on this one. (GA by the way!). You are worrying about the wrong thing. Your water has coliform in it. If it is at a level that you worry about your friend spreading disease through contact with packages, you have a HUGE problem. It is time to fix the well and get rid of the coliform instead of trying to treat every single issue the bacteria may bring down the line.

@Cindy1302 I live in Western NY where it gets pretty cold. The frost line is 48” deep so water lines need to be installed at 54 inches or deeper. Given that, I only had to dig down about 5 ft to reach the break in the line. It took a couple of hours to do it by hand.
If you live in a warmer place it will be even easier to fix. You only need to dig down a foot or two.
@seawulf575 Hey, we don’t often agree on much but on this Q we are in lock step!

Cindy, Git ‘er done!
(If you lived near me I’d gladly come over to help! I’m willing to bet @seawulf575 would, too.)

I’m free Saturdays.

I’ll bring the pizza.