Looked into various water filters today at Lowe’s. Found the small ones for one single faucet, but also found this whole home system for $339.
Ok, that’s more expensive than the single faucet systems, and it would need to be installed between the main water line and the hot water heater by a professional, which could cost a bit, BUT it filters for the entire house. And you change the charcoal only once for each 6 years (assuming a 4-person household).
Lowe’s also has some DIY water testing kits. Though neither the basic kit ($13) nor the ultimate kit ($29) includes a test for glyphosate, it does cover quite a few other types of chemicals and contaminants.
I like these tests because you don’t send them off to the lab. You actually just get the results immediately using a litmus-type strip.
The Cancer Canary 