Is Rockford tap water safe to drink?

Use caution filtration recommended

Rockford's water has significant quality concerns. We strongly recommend a certified water filter.

58/100
Purity Score
4
Issues Found
10.5 GPG
Hardness
Detected
PFAS

4 Issues Detected in Rockford

PFAS (Forever Chemicals) Detected

PFAS are man-made chemicals that do not break down and accumulate in the body.

PFAS details for Rockford

Very Hard Water (10.5 GPG)

Hard water causes scale in pipes and shortens appliance lifespan.

Hardness data for Rockford

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Rockford

Arsenic Approaching Limit (0.5 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Rockford
Illinois

611,016,110,261,103 · Rock River and groundwater

Is Rockford Tap Water Safe? PFAS Testing Results

Elevated Risk Updated March 2026 148,655 residents
See Best Filters for Rockford
58
Purity Score

PFAS compounds have been identified in Rockford's public water supply. This report covers detection levels, health context, and the filtration options best suited to Rockford residents.

Contaminant Levels

PFAS
2.4 ppt
Lead
7.2 ppb
Nitrate
0.9 mg/L
Arsenic
0.5 mg/L
Hardness
10.5 gpg

Health Insights

  • 1
    With a hardness of 10.5 GPG, Rockford residents may notice white scale on faucets. Hard water increases maintenance costs.
  • 2
    PFAS have been identified in Rockford's water at 2.4 parts per trillion. A reverse osmosis system is the most reliable home treatment.
  • 3
    Chlorine levels may affect the taste of Rockford's tap water. A carbon filter improves flavor.

Score

58 /100
Poor
"Good" threshold (70)

Rockford tap water is sourced from Rock River and groundwater and treated by City of Rockford Water Division. PFAS forever chemicals have been detected. Water hardness is hard at 10.5 GPG which may cause scale buildup. Overall purity score: 58/100 (Poor). Updated for 2026.

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Best filters matched to Rockford's 4 issues.

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About Rockford's Water

PFAS Water Contamination: What Rockford Residents Should Know

PFAS have been detected in Rockford's water supply at 2.4 parts per trillion. Health agencies including the EPA have set limits on certain PFAS compounds in drinking water due to concerns about long-term exposure. While municipal treatment reduces many contaminants, standard water treatment does not fully remove PFAS. Point-of-use reverse osmosis filtration is the most effective home solution confirmed to remove PFAS at the 99%+ level.

Rockford Hard Water: Effects on Your Home

Hard water conditions in Rockford (10.5 GPG) can leave white mineral deposits on fixtures, reduce soap lather, and gradually damage water-using appliances. Water heaters are particularly vulnerable: scale insulates the heating element, raising energy costs and reducing lifespan. A water softener exchanging calcium and magnesium for sodium eliminates scale formation throughout the home. For households concerned about sodium in drinking water, pairing a softener with an RO system at the kitchen tap is the standard approach.

Explore Rockford Water Data

PFAS in RockfordForever chemicals
Lead in RockfordLead risk
Rockford Hard WaterHardness data
Best FiltersFull comparison
IllinoisState rankings

Rockford Water FAQ

Is Rockford IL tap water safe to drink in 2026?
Rockford tap water meets EPA federal drinking water standards and scores 58/100 (Poor) on PurityMap for 2026. PFAS forever chemicals have been detected at 2.4 ppt. An NSF-certified filter is strongly recommended. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Rockford IL use chlorine or chloramine for disinfection?
Rockford uses chloramine as the primary disinfectant with a residual level of 1.7 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.
How hard is Rockford IL water and what is the TDS level?
Rockford water hardness is 10.5 grains per gallon (hard) with a TDS of 350 ppm (poor). This level causes noticeable scale buildup in water heaters kettles and dishwashers. A water softener is recommended to protect plumbing and reduce soap usage.
Has PFAS been found in Rockford IL drinking water?
Yes. PFAS forever chemicals have been detected in Rockford water at approximately 2.4 ppt according to EPA UCMR5 monitoring data. A reverse osmosis or NSF P473-certified filter is the most effective residential solution.
What is the best water filter for Rockford?
Based on Rockford's water profile, we recommend the Clearly Filtered Water Pitcher. Rockford: PFAS detected or elevated lead risk. Reverse osmosis is the only residential technology proven to reduce both below detection limits. TDS will also drop significantly.

Nearby Reports

ChampaignIllinois — 73/100ElginIllinois — 75/100AuroraIllinois — 79/100NapervilleIllinois — 79/100PeoriaIllinois — 79/100JolietIllinois — 79/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • City of Rockford Water Division CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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