Is Springfield, IL tap water safe?
Supplied by Springfield Water System · serves 117,444 people (54,917 connections) · Surface water · EPA ID IL1671200
Data: U.S. EPA · How we read the data · How we check it
Most of Springfield gets its water from Springfield Water System. Parts of the city are served by 21 smaller systems: Curran-Gardner Township Public Water District (6,651 people), Grand Valley Village MHP (912 people), Round Prairie Water Coop (813 people), Woodland Acres MHP (464 people) and 17 more. Your water bill names your system.
Summary
No federal limits exceeded in EPA data.
- PFAS
- Detected, below limit1 of 29 PFAS found at least once. All averages below the federal limits.
- Lead
- Below action level0 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period Jan 2026 – now, still in progress (results reported so far). Your home's pipes can make yours higher.
- Violations
- None health-basedNo health-based violations since 2016.
- Built before 1986, or not sure what your service line is made of? Check your service line and test your tap. Utility data can't show your pipes.
- Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
- Read Springfield Water System's annual water quality report (Consumer Confidence Report). It lists every regulated contaminant tested and is usually on the utility's website or mailed with your bill, and you can also request it at (217) 789-2116. EPA: how to find it.
PFAS (“forever chemicals”)
EPA UCMR 5: 1 entry point tested Feb 2023 to Nov 2023. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.
| Contaminant | Highest average |
|---|---|
| PFOA Not detected Limit 4 ppt | – |
| PFOS Not detected Limit 4 ppt | – |
| PFHxS Not detected Limit 10 ppt | – |
| PFNA Not detected Limit 10 ppt | – |
| HFPO-DA (GenX) Not detected Limit 10 ppt | – |
| Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit) Not detected Limit 1 | – |
| PFBS Not detected Guideline 2,000 ppt | – |
| PFBA Detected, below limit Guideline 6,000 ppt | 1.5 ppt |
| PFHxA Not detected Guideline 3,000 ppt | – |
29 PFAS tested, 1 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.
Lithium
Not detected in 4 samples (reporting limit 9 ppb). About lithium.
Lead and copper
Latest 90th percentile: 0 ppb lead (Jan 2026 – now (in progress)). Below action level
| Monitoring period | Lead (90th pct.) |
|---|---|
| Jan 2026 – now (in progress) | 0 ppb |
| Jul 2025 – Dec 2025 | 0 ppb |
| Jan 2025 – Dec 2025 | 0 ppb |
Earlier results (9)
| Jan 2025 – Jun 2025 | 0 ppb |
| Jan 2020 – Dec 2022 | 0 ppb |
| Jan 2017 – Dec 2019 | 0 ppb |
| Jan 2014 – Dec 2016 | 0 ppb |
| Jan 2011 – Dec 2013 | 1.7 ppb |
| Jan 2008 – Dec 2010 | 1.4 ppb |
| Jan 2005 – Dec 2007 | 1.4 ppb |
| Jan 2002 – Dec 2004 | 3 ppb |
| Jan 1999 – Dec 2001 | 0 ppb |
Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.
Violations
Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.
Earlier EPA testing (2013–2020)
| Contaminant | Highest | Guideline |
|---|---|---|
| Manganese | 2.9 ppb | 300 ppb |
| Chromium-6 | 1.8 ppb | – |
| Strontium | 0.096 ppm | 1.5 ppm |
| Molybdenum | 1.3 ppb | 40 ppb |
| Vanadium | 5.6 ppb | 21 ppb |
Where it serves
Springfield
ZIP codes the system reported serving: 62703, 62757
Nearby utilities
- Illinois American Water – Lincoln Lincoln · 29 mi · PFAS above limit
- Decatur Water System Decatur · 38 mi
- Bloomington Water System Bloomington · 59 mi
- Normal Water System Normal · 61 mi
- Illinois American Water – Peoria Peoria · 66 mi · PFAS above limit
- East Alton Water System East Alton · 67 mi · PFAS above limit
Questions
Is Springfield tap water safe to drink?
Most of Springfield gets its water from Springfield Water System. Springfield Water System has no health-based violations since 2016. EPA testing found no PFAS above the federal limits. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.
Does Springfield water have PFAS?
Yes. EPA's 2023–2025 testing of Springfield Water System found 1 PFAS at least once. None of the averages were above the federal limits.
What is the lead level in Springfield water?
The most recent 90th-percentile lead result for Springfield Water System is 0 ppb, for the monitoring period that began Jan 2026 (still in progress). The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.
Check these numbers yourself
Every figure on this page comes from public EPA records. You don't have to take our word for it:
- EPA's own report for IL1671200: violations, enforcement and inspections, straight from EPA.
- EPA UCMR 5 data: the PFAS and lithium results (search the file for PWSID IL1671200).
- EPA SDWIS download: the lead results, population and violation records we use.
- The utility's annual water quality report (Consumer Confidence Report): ask Springfield Water System at (217) 789-2116, or see EPA's guide to finding it.
Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.