Nitrate in Wisconsin Dells, WI Drinking Water
Nitrate data for Wisconsin Dells, Wisconsin · 11,197 residents · 1 ZIP code
Because Nitrate is associated with health effects at sustained elevated exposures, residents in Wisconsin Dells, Wisconsin may find it useful that local water systems have returned detectable concentrations — facts that bear on long-term household water decisions.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
Nitrate in Wisconsin Dells Tap Water
Wisconsin Dells, Wisconsin has 1 EPA violation related to nitrate in drinking water.
This analysis covers 11,197 residents across 1 ZIP code in Wisconsin Dells.
Wisconsin Dells's overall water quality grade is B (77/100).
Is Nitrate in Wisconsin Dells Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or ion exchange filter certified under NSF 53 / NSF 58 and testing your water independently.
EPA Violations for Nitrate in Wisconsin Dells
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2021-07-01 | Nitrate (Known) | Known | 53965 |
Health Effects of Nitrate
- Methemoglobinemia ("blue baby syndrome") in infants under 6 months
- Increased risk of colorectal and bladder cancer (long-term)
- Thyroid disease from chronic exposure
- Possible reproductive effects
Health risk severity: High. Governed by the National Primary Drinking Water Regulations.
How Nitrate Gets Into Drinking Water
- Agricultural fertilizer runoff
- Animal feedlot operations and manure
- Septic system leachate
- Urban stormwater and wastewater discharge
What to Do About Nitrate in Wisconsin Dells Water
- Reverse osmosis is the most effective method for nitrate removal
- Ion exchange systems designed for nitrate can also work
- Standard carbon filters do NOT remove nitrate
- Boiling water increases nitrate concentration — never boil for nitrate
Look for filters certified under NSF 53 / NSF 58 for nitrate removal.