D
47

Poor Water Quality

Pekin, IL 61554

Tazewell County · Population served: 38,058 · Data updated March 2026

Water Systems Serving This Area

🌊
PEKIN FED CORRECTIONAL INST AND PRSNCMP
Groundwater · Pop. 1,635
PWSID: IL1790030
🌊
MARQUETTE HEIGHTS
Groundwater · Pop. 2,974
PWSID: IL1790400
🌊
NORTH PEKIN
Groundwater · Pop. 1,478
PWSID: IL1790550
🌊
UAW SENIOR CITIZENS CENTER
Groundwater · Pop. 240
PWSID: IL1795030
🌊
IL AMERICAN-PEKIN
Groundwater · Pop. 31,731
PWSID: IL1795040

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
6.0
15 ppb 1 ppb Warning
Copper
1500.0
1300 ppb 300 ppb Exceeded

PFAS / Forever Chemicals

7 detected 1 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBS10.4 ppt2000 ppt100 pptBelow limit
PFHxS8.3 ppt10 ppt10 pptBelow limit
PFPeA6.2 pptNo standardUnregulated
PFBA6.0 pptNo standard500 pptUnregulated
PFNA4.5 ppt10 ppt10 pptBelow limit
PFHxA4.4 pptNo standard400 pptUnregulated
PFOS4.4 ppt4 ppt4 pptExceeded

Violation History (Last 5 Years)

50Total (5yr)
1Health-Based
35Major

Water Quality Summary

Understanding Your Water in Pekin

Tap water quality in Pekin, Illinois (61554) receives an overall grade of D (Poor) with a score of 47 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 27 points below the Illinois state average of 74. Compared to the national average (75), this area scores significantly lower. The area is served by 5 water systems providing water to approximately 38,058 people, using groundwater sources. Testing has found elevated levels of Lead, Copper that warrant attention. Notably, 1 PFAS compound exceeds EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 50 violations, including 1 health-based violations.

Your Score 47/100 D
vs State 27 pts below Illinois avg (74)
vs National 28 pts below national avg (75)

What a Grade D Means

A score of 47/100 signals poor water quality in Pekin, IL. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

🔶

Copper in Your Water

Copper can leach into water from copper plumbing, especially in newer homes or when water is acidic.

Health Effects

Short-term exposure above 1,300 ppb can cause gastrointestinal distress. Long-term exposure may cause liver or kidney damage. People with Wilson's disease are especially vulnerable.

Common Sources

Copper pipes, fittings, and faucets are the most common source. Corrosive (low-pH) water accelerates copper leaching.

What You Can Do

If copper levels are elevated, flush pipes by running water for 15–30 seconds before use. Reverse osmosis and distillation systems effectively remove copper.

Common Questions

Frequently Asked Questions

Tap water in Pekin, Illinois receives a grade of D (Poor) with a score of 47/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 61554 is served by 5 water systems using groundwater sources, providing water to approximately 38,058 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 6.0 ppb in Pekin, Illinois. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

Yes — 7 PFAS compounds were detected in water serving Pekin, Illinois, and 1 exceeds EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Pekin, Illinois have received 50 violations in the last 5 years, including 1 health-based violation. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS, copper), residents in Pekin, Illinois should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes