Wendy Cohoon

I once heard, "Always wash your rice!" So I do, I never use parboiled so that is not a question - but it would probably be fine.
As for arsenic - you may be adding it, depending on your well water anyway. A quick search says that rice absorbs 10x more arsenic that wheat, and it accumulates more in the bran layer. Basmati and Jasmine rice consistently test with lower levels. Brown Basmati grown in India, and brown Jasmine grown in Thailand test with, "moderate" levels, but brown rice grown in the USA test, "high" which is just likely due to the amount of arsenic in the soil and ground water where the rice is grown.  Simple rinsing removes surface starches and a small amount of arsenic. Using a 6:1 water-to-rice ratio and draining can remove 40–60% of inorganic arsenic - like we do with pasta. Soaking rice overnight helps draw out water‑soluble arsenic before cooking, but that is assuming that your well water doesn't contain arsenic.
I am also concerned about how strict rodent control is, from the company or location that the rice came from. It's so easy  to just wash it a few time.

I wash everything in a couple of 5 gallon buckets, by hand. We just did 3 loads of laundry at a laundrymat after 3 years - it cost us over $20! Jeans, and fleecy blankets are the most difficult to wash, because they are heavy when wet. Keep jeans for dress wear, and get yourself some work pants. I have some old work pants that were my dad's, they are huge, but that's what belts and braces are for. They are light in the wash and dry in no time.

Make a beautiful Purple Wool Purse, out of it. I'd throw it in the washing machine and shrink/felt it first.