PWSID IL0894400
WILLOW LAKE ESTATES MHP
Community water system based in Elgin, IL
Service area on file with EPA: Elgin · Kane County. EPA's recorded service area can be incomplete for regional authorities. The cities and counties above are what the utility has filed with EPA; the utility may serve additional areas.
- Population served
- 920
- Source
- Surface water
- Status
- Active
At a glance
Recent tests are below federal safety limits
-
This utility's inventory reports no confirmed lead service lines and a low share of unclassified lines.
From the utility's published inventory · See details below
Past 5 years: 4 health-based violations on file, all marked Resolved or Archived. See compliance history below.
Risk classification follows EPA's published values for safe drinking water, with caution and concern bands reviewed by a clinician. Past resolved violations do not influence this card. See methodology.
Lead service line inventory
Utility reports no confirmed lead service lines
Willow Lake Estates MHP (PWS) reports 0 confirmed lead service lines, 630 non-lead, 0 unknown (total 630) in its Illinois EPA Service Line Material Inventory (reporting year 2022).
- 0 confirmed lead service lines
- 0 galvanized requiring replacement (LCRI treats these as lead)
- 0 unknown (0.0% of total)
- 630 confirmed non-lead (100.0%)
- 630 total service lines in the system
What to do if your service line might be lead
- Ask your utility to check the service-line classification for your specific address. Many utilities provide a public address-lookup tool linked from the inventory page.
- Get on the replacement queue. Under the LCRI, utilities must replace all lead and galvanized-requiring- replacement lines within 10 years (clock generally starts November 2027). Some prioritize requests.
- Until the line is replaced: flush the tap 30 seconds after long stagnation, use cold water for drinking and cooking, and consider an NSF/ANSI 53 lead-rated tap filter.
- Talk to your clinician about a blood lead test for anyone in the home, especially a pregnant person or a child under 6. Lead in drinking water guide.
Inventory data sourced from Willow Lake Estates MHP (PWS) (reporting date April 26, 2023; retrieved May 24, 2026 ; curator confidence: high ). Confirmed against the original source automatically each month; see methodology.
Lead and copper test results
The most recent measurement per contaminant from EPA's Lead and Copper Rule sampling.
Why only lead and copper, and not arsenic, nitrate, or others?
EPA's bulk SDWIS download is the only nationwide per-system sample data they publish, and it only includes the Lead and Copper Rule table. Values for other regulated contaminants (TTHMs, nitrate, arsenic, etc.) appear on this page only when they trigger a violation. For the full per-system contaminant suite, see the utility's annual Consumer Confidence Report (link further down the page).
| Contaminant | Most recent | Date | Risk |
|---|---|---|---|
| PB90 | 0 mg/L | December 31, 2026 | Below regulatory thresholds |
Data from EPA SDWIS (Lead and Copper Rule sample table) , last refreshed May 24, 2026.
PFAS and emerging contaminants
This system was tested 120 times under EPA's latest PFAS monitoring program; 3 of the 30 chemicals tested were detected.
What is this testing program?
EPA's fifth Unregulated Contaminant Monitoring Rule cycle (UCMR 5, 2023 to 2025) required every public water system serving over 3,300 people to test for 29 per- and polyfluoroalkyl substances (PFAS) plus lithium; 30 chemicals in total. Most recent detection per chemical shown below.
Tested but not detected (27 contaminants)
EPA tested for these substances and every sample was below the minimum reporting level. Absence of detection does not mean true zero; it means below the laboratory's quantitation threshold.
Data from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule) , last refreshed May 24, 2026.
Fluoride
We don't yet have this utility's specific fluoridation status from CDC's My Water's Fluoride listing. The figures below describe the broader area, not WILLOW LAKE ESTATES MHP itself.
Area context
Kane County, IL (2020 data)
- Community water systems
- 38 of 41 add fluoride
- Population on fluoridated water
- 462,701 of 462,910 (100.0%)
Illinois statewide (2020 data)
- Population on fluoridated water
- 11,457,094 of 11,640,823 (98.4%)
- Community water systems adding fluoride
- 1,639 of 1,815
Look up your specific utility
Illinois shares per-system data on CDC's My Water's Fluoride site. Search by water system to see whether WILLOW LAKE ESTATES MHP adds fluoride.
Data from CDC Water Fluoridation Reporting System (state and county aggregates) , last refreshed May 16, 2026.
Compliance history
EPA-recorded violations against this system over the last 5 years.
How to read this section
Health-based violations are when a measured limit was exceeded; the measured concentration is shown alongside the EPA federal limit where SDWIS published it. Monitoring and reporting items are paperwork issues (missed sample dates, late filings) that do not themselves indicate unsafe water.
4 resolved health-based violations in the last 5 years
All 4 health-based violations in the last 5 years are marked Resolved or Archived. Past violations do not represent current water quality.
| Period start | Contaminant | What happened | Measured level | Status |
|---|---|---|---|---|
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Inventory | Not reported | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Inventory | Not reported | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Inventory | Not reported | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Inventory | Not reported | Resolved |
39 monitoring and reporting item s (paperwork) , 2 still open · these are not health risks
| Period start | Relates to | Item | Status |
|---|---|---|---|
| November 28, 2025 | Public Notice | Public Notification Violation for NPDWR Violation | Resolved |
| November 28, 2025 | Public Notice | Public Notification Violation for NPDWR Violation | Resolved |
| November 28, 2025 | Public Notice | Public Notification Violation for NPDWR Violation | Resolved |
| November 28, 2025 | Public Notice | Public Notification Violation for NPDWR Violation | Resolved |
| August 22, 2025 | Public Notice | Public Notification Violation for NPDWR Violation | Resolved |
| August 22, 2025 | Public Notice | Public Notification Violation for NPDWR Violation | Resolved |
| July 2, 2025 | Lead and Copper Rule Revisions | Notification, Known or Potential LSL | Unaddressed |
| July 2, 2025 | Lead and Copper Rule Revisions | Notification, Known or Potential LSL | Unaddressed |
| July 1, 2025 | Consumer Confidence Rule | Consumer Confidence Report Inadequate Reporting | Resolved |
| July 1, 2025 | Consumer Confidence Rule | Consumer Confidence Report Inadequate Reporting | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Reporting | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Reporting | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Reporting | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Reporting | Resolved |
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Reporting | Resolved |
| October 1, 2024 | Revised Total Coliform Rule | Monitoring, Routine (RTCR) | Resolved |
| October 1, 2024 | Revised Total Coliform Rule | Monitoring, Routine (RTCR) | Resolved |
| October 1, 2024 | Revised Total Coliform Rule | Monitoring, Routine (RTCR) | Resolved |
| October 1, 2024 | Revised Total Coliform Rule | Monitoring, Routine (RTCR) | Resolved |
| October 1, 2024 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Chloramine | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Chloramine | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Chloramine | Monitoring and Reporting (DBP) | Resolved |
| October 1, 2024 | Chloramine | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Tthm | Monitoring and Reporting (DBP) | Resolved |
| July 1, 2023 | Tthm | Monitoring and Reporting (DBP) | Resolved |
8 older violation s (5-10 years ago) · all paperwork (monitoring/reporting), none health-based , all resolved
| Period start | Relates to | Item | Measured level | Status |
|---|---|---|---|---|
| July 1, 2020 | Tthm | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Tthm | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Tthm | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Tthm | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | — | Resolved |
| July 1, 2020 | Total Haloacetic Acids (Haa5) | Monitoring and Reporting (DBP) | — | Resolved |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Where to see every contaminant this utility tested for
EPA's bulk SDWIS dataset gives MyTapWater.us per-system measured values for lead and copper, plus violation records for everything else. To see every regulated contaminant this utility tested for in the past year (TTHMs, HAA5, nitrate, arsenic, fluoride, chromium, etc.) with measured values, read the utility's Consumer Confidence Report (CCR).
Every community water system is required by EPA to publish a CCR annually, by July 1, listing every contaminant they sampled, the measured value, the federal limit, and any health-based exceedances. Most utilities post the report online; some mail it with your bill.
How to find WILLOW LAKE ESTATES MHP's CCR:
- Search the web for "WILLOW LAKE ESTATES MHP consumer confidence report" . The PDF is usually on the utility's own website.
- Or call the utility directly. Their phone number is in the contact section below.
Other water systems in Kane County, IL
Compare nearby utilities by population served.
- AURORA
183k served · AURORA
- ELGIN
115k served · ELGIN
- CARPENTERSVILLE
38k served · CARPENTERSVILLE
- ST CHARLES
33k served · SAINT CHARLES
- MONTGOMERY
29k served · MONTGOMERY
Contact this utility
Public administrative contact information for this water system, as filed with the EPA. Use this to ask about your service line, request your home's lead status, or report a water quality issue.
- Administrator
- BOEHL, HEATHER
- Phone
- 847-742-3620
- Mailing address
- 161 W River RoadELGIN, IL 60123
Where this page's data comes from
Bundle released 2026-Q2, regenerated May 24, 2026. Each section above also shows its own source date so you can tell at a glance how fresh that part of the page is.
- EPA SDWIS bulk download — last refreshed May 24, 2026 (system info, violations, lead and copper samples).
- EPA UCMR 5 (Unregulated Contaminant Monitoring Rule) — last refreshed May 24, 2026 (PFAS and lithium).
- Lead service line inventory — last refreshed May 24, 2026 (from the utility's reported inventory).
- CDC Water Fluoridation Reporting System — last refreshed May 16, 2026 (state and county fluoridation aggregates).
Every value on this page is cross-verified before publication; read our methodology for the verification steps and corrections process.