Twelve wells, two depths

The Village of Romeoville draws from wells only. Five deep wells pump from 900 to 1,200 feet below the surface and seven shallow wells from 80 to 200 feet, spread around the village. The deep wells reach the same sandstone aquifer Joliet uses, which is where the radium and most of the hardness come from. Which wells feed your street decides what your tap water looks like, and the Village says hardness varies by area for exactly that reason.

10 to 20grains per gallon, per the Village
1,200 ftdepth of the deepest village wells
5ion exchange plants the Village runs for radium

What the ion exchange plants tell you

Ion exchange is the same chemistry as a home water softener: resin beads trade sodium for the calcium, magnesium and radium in the water. Romeoville runs five plants of it because the raw well water would not meet the federal radium limit otherwise. Those plants are set to get radium under the limit, not to deliver soft water to every house, and they only serve the parts of town plumbed to them. So the Village's own number, 10 to 20 grains, is what shows up at your faucet after treatment.

A softener at your main line finishes the job the plant started. It takes 10 to 20 grains to effectively zero for every tap, the water heater, the dishwasher and the washing machine. Read how the softener works.

Radium and the glass you drink from

Treated Romeoville water meets the legal limit for radium. Meeting the limit is not the same as zero, and the limit is an annual average. Radium matters when you drink it, so the practical fix is a reverse osmosis unit under the kitchen sink. RO is one of the treatment methods the EPA lists for radium and it also strips the dissolved solids that give well water its mineral taste. Read about reverse osmosis and radium in this part of Illinois.

The EWG count

In the EWG Tap Water Database, Romeoville shows 12 contaminants above EWG health guidelines. Joliet shows 2. Both meet federal law; EWG guidelines are stricter. It is a fair snapshot of what treated deep well water still carries and a reason the carbon tank and RO belong in the install, not just the softener.

What we install in Romeoville

All three installed for $2,999. See what the price includes. Send your address with the quote request and we pull the Village's report for your system before we size anything.

Sources: Village of Romeoville Water FAQs (well count and depths, 10 to 20 gpg, five ion exchange plants for radium removal), USGS hardness scale, EWG Tap Water Database (2013 to 2023 data), EPA radium treatment guidance.