In my hometown we have 2 water problems. Nitrates from fertilizer and also isolated pockets of TCE from an industrial spill.
Does your filter remove nitrates?
Does it remove TCE?
If TCE is in the water supply a whole house carbon filter will remove the TCE, it will minimize ingestion and inhalation exposures. As for the nitrates removal we recommend point-of-use counter-top or under-sink filter just for the drinking and cooking water which all of these filters are available.
Do you know how much Trichloroethene and nitrates in your water. The TCE is a nasty VOC and you should not have it in your water.