Is Annapolis, IL Tap Water Safe to Drink?
Graded B-, with 9 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
72.2/100
waterverge.com Annapolis, IL — Water Quality Report
Annapolis's drinking water received a grade of B- (72.2 out of 100), indicating fair water quality. The city's 1 water system serves approximately 1,655 residents using purchased ground water.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 10 violations on record, including 1 health-based violation. 9 remain unresolved.
What to know about Annapolis's water
Annapolis ranks #715 out of 891 cities in Illinois for water quality, placing it among the lowest-rated in the state.
Annapolis purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Annapolis may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 7 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Annapolis, IL water safe to drink?
Annapolis's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (72.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,655 residents using groundwater (wells).
Recent water quality updates for Annapolis
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Annapolis's water quality assessment. Grade: B- (72.2/100).
Contaminants: Public Notice.
Contaminants: LEAD AND COPPER RULE REVISIONS, Consumer Confidence Rule.
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Federal disaster declaration (FEMA DR-4116). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3230). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Annapolis's water supply.
Well within EPA limits.
Violation history
Annapolis's water system has 10 total violations on record, including 1 health-based violation. 9 remain unresolved. 7 violations were issued in the last 5 years.
Flood & environmental risk
Crawford County has experienced 3 federally declared disasters since 1985. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include North Fork Embarras River.
Where does Annapolis's water come from?
Annapolis's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,655 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include North Fork Embarras River (river).
What Annapolis residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Annapolis's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Annapolis's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Crawford County has experienced 3 federally declared disasters since 1985. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Annapolis compares by contaminant
Explore where Annapolis ranks among all Illinois cities for specific contaminants.
Water source & infrastructure
Where Annapolis's water comes from
Annapolis purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Annapolis's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 1,655 people through 1 water system.
Water bodies near Annapolis
Annapolis is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Annapolis
| System Name | PWSID | Population | Source |
|---|---|---|---|
| EATON PWD | IL0335100 | 1,655 | GWP |
How Annapolis compares
Full Illinois rankings →Annapolis's score of 72.2/100 is above the average of 56/100 among major Illinois cities. It outscores 7 of 10 nearby cities.
Nearby cities
View Illinois rankings →About Annapolis, IL
Wikipedia →Annapolis is an unincorporated census-designated place (CDP) in Crawford County, Illinois, United States. Annapolis is 10 miles (16 km) north-northwest of Robinson. Annapolis has a post office with ZIP code 62413. Its population was 106 as of 2020.
Learn more about your water
Guides and resources related to Annapolis's water quality findings.
Explore water quality across Crawford
Frequently asked questions
Is Annapolis, IL tap water safe to drink?
Annapolis's water quality earned a grade of B- (72.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #715 out of 891 cities tested in Illinois.
What contaminants are in Annapolis's water?
Lead was measured at 0.0 ppb (90th percentile). 10 violations are on record.
How is Annapolis's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Annapolis?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Annapolis's water come from?
Annapolis's water is sourced from Purchased ground water. The city has 1 water system serving approximately 1,655 residents.
What health violations has Annapolis's water system had?
Annapolis has 1 health-based violation on record. The most recent violation was recorded in August 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.
Is Annapolis's groundwater at risk of contamination?
Annapolis uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 10 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Annapolis's water compare to other cities?
Annapolis ranks #715 out of 891 cities in Illinois (better than 20% of state cities) and #10422 out of 15744 cities nationally (34th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Annapolis's small water system affect quality?
Annapolis's system serves approximately 1,655 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 10 violations on record.