MUNDELEIN, IL · Lake County
SYLVAN LAKE 1ST SUBDIVISION Water System
Consumer Confidence Report status
SYLVAN LAKE 1ST SUBDIVISION must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 4 items for SYLVAN LAKE 1ST SUBDIVISION that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.
System facts
- System ID (PWSID)
- IL0977100
- System type
- Community Water System
- Population served
- 210
- Service connections
- 71
- Ownership
- privately owned
- Water source
- groundwater (wells)
SYLVAN LAKE 1ST SUBDIVISION is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 210 people from groundwater.
As of August 1, 2026, its federal record holds 38 entries between 1977 and 2026, of which 4 remain open; none are health-based.
Of the 38, 36 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, the Lead and Copper Rule, and the Total Coliform Rules.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 2026
UnaddressedNotification, Known or Potential LSL
—LEAD AND COPPER RULE REVISIONS
July 2, 2025
UnaddressedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
July 1, 2025
UnaddressedLSL Reporting
—LEAD AND COPPER RULE REVISIONS
October 17, 2024 – April 30, 2025
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2024
UnaddressedMonitoring, Regular
—Nitrate
January 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Nitrate
January 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Selenium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Barium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Barium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Fluoride
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Fluoride
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Nickel
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Nickel
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Chromium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Chromium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Mercury
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Mercury
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Selenium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Cadmium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Cadmium
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Arsenic
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Arsenic
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2020 – December 31, 2025
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
November 9, 2003 – November 10, 2003
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
October 1, 2003 – October 31, 2003
ArchivedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
August 1, 2003 – August 31, 2003
ArchivedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
July 1, 2003 – July 31, 2003
ArchivedMonitoring, Regular
—Nitrate
January 1, 2003 – December 31, 2003
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2000 – August 31, 2000
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived
Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2026 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Unaddressed |
| July 2, 2025 | Notification, Known or Potential LSL | LEAD AND COPPER RULE REVISIONS | — | Unaddressed |
| July 1, 2025 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Unaddressed |
| October 17, 2024 – April 30, 2025 | LSL Reporting | LEAD AND COPPER RULE REVISIONS | — | Resolved |
| October 1, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Unaddressed |
| January 1, 2024 – December 31, 2024 | Monitoring, Regular | Nitrate | — | Archived |
| January 1, 2024 – December 31, 2024 | Monitoring, Regular | Nitrate | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| November 9, 2003 – November 10, 2003 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| October 1, 2003 – October 31, 2003 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| August 1, 2003 – August 31, 2003 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Archived |
| July 1, 2003 – July 31, 2003 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Archived |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate | — | Resolved |
| August 1, 2000 – August 31, 2000 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| June 30, 1977 – June 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 6, 2026State Compliance achieved3 linked violations
- February 24, 2026State Compliance achieved23 linked violations
- February 17, 2026State Public Notification received1 linked violation
- February 17, 2026State Public Notification received5 linked violations
- February 17, 2026State Public Notification received2 linked violations
- February 17, 2026State Public Notification received1 linked violation
- February 17, 2026State Public Notification received2 linked violations
- February 17, 2026State Public Notification received1 linked violation
- February 17, 2026State Public Notification received1 linked violation
- February 17, 2026State Public Notification received2 linked violations
- February 17, 2026State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- February 17, 2026State Public Notification received1 linked violation
- February 17, 2026State Public Notification received2 linked violations
- February 17, 2026State Public Notification received2 linked violations
- February 17, 2026State Public Notification received1 linked violation
- February 17, 2026State Public Notification received2 linked violations
- February 17, 2026State Public Notification received2 linked violations
- January 27, 2026State Public Notification requested2 linked violations
- January 14, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 14, 2026State Violation/Reminder Notice4 linked violations
- January 14, 2026State Public Notification requested2 linked violations
- January 14, 2026State Public Notification requested3 linked violations
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Notice2 linked violations
- January 13, 2026State Public Notification requested2 linked violations
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Notice1 linked violation
- January 13, 2026State Public Notification requested1 linked violation
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 13, 2026State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- July 29, 2025State Violation/Reminder Notice2 linked violations
- July 7, 2025State Public Notification received1 linked violation
- July 7, 2025State Public Notification received1 linked violation
- July 3, 2025State Public Notification requested2 linked violations
- July 2, 2025State Public Notification requested2 linked violations
- April 30, 2025State Compliance achieved4 linked violations
- January 21, 2025State Public Notification requested2 linked violations
- January 21, 2025State Public Notification requested3 linked violations
- January 21, 2025State Violation/Reminder Notice1 linked violation
- January 21, 2025State Violation/Reminder Notice2 linked violations
- October 12, 2024State Violation/Reminder Notice2 linked violations
- July 16, 2009State Violation/Reminder Notice1 linked violation
- July 10, 2009State Compliance achieved2 linked violations
- June 23, 2004State Public Notification received3 linked violations
- February 24, 2004State Violation/Reminder Notice3 linked violations
- September 11, 2003State Violation/Reminder Notice6 linked violations
- September 11, 2003State Public Notification requested2 linked violations
- October 15, 2000State Public Notification requested3 linked violations
Common questions
Is SYLVAN LAKE 1ST SUBDIVISION required to publish a Consumer Confidence Report?
- Yes. SYLVAN LAKE 1ST SUBDIVISION is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SYLVAN LAKE 1ST SUBDIVISION’s next Consumer Confidence Report due?
- SYLVAN LAKE 1ST SUBDIVISION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SYLVAN LAKE 1ST SUBDIVISION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 4 items for SYLVAN LAKE 1ST SUBDIVISION that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
JOHNSON, WAYNE
224-280-0188
MUNDELEIN, IL 60060