Beach closure reported, Aug 3, 2026
Advisory active · McHenry County Health Department (Illinois BeachGuard System)
Source: McHenry County Health Department (Illinois BeachGuard System) via Illinois BeachGuard System (IDPH): advisories and closures, E. coli results, record 84-20260803T0800, updated by the source Nov 6, 2026, 2:41 AM CST, retrieved 2026-11-06 08:41 UTC · Read the original notice
Current status from this report
Discharge or advisory reported on McCullom Lake: Official advisory in effect. Current rule period ends Nov 20, 2026, 2:41 AM CST. This is not a water-quality test.
Why this status: Discharge or advisory reported: official advisory.
Why we use this rule: An official advisory is listed. We show it while the authority keeps it in place; an old or missing update does not mean the advisory was lifted.
A report is not a test of the water. See how we assign statuses.
Read the original notice · Report an error
1. Where the advisory applies
Issued by: McHenry County Health Department (Illinois BeachGuard System). Location: 42.36047, -88.28233; location source: given in the source record.
2. Waters named in the notice
The notice names: “McCullom Lake”. DirtyWaterWatch links this report to McCullom Lake, IL. Match basis: the water named in the report.
Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.
When it happened and when it was reported
Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).
- Started
- Ended
- not reported
- Detail provided by the source
- Times known to the minute
- Reported to the source
- not given
- Published
- not given
- Source last updated
- Last retrieved by DirtyWaterWatch
What was reported
- Type
- Beach closure
- Status in the record
- Advisory active
Advice from McHenry County Health Department (Illinois BeachGuard System)
“Beach Closed by Operator: Petersen Park Beach”
- Advice period
- This report does not state a period. See the rule DirtyWaterWatch applies and its source.
- Basis
- not stated
Status history from this report
- Discharge or advisory reported McCullom Lake: Official advisory in effect, Aug 3, 2026, 8:00 AM CDT to Nov 20, 2026, 2:41 AM CST (the end is scheduled: a new report can change it)
Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-06 09:03 UTC.
Source and versions
- Source
- Illinois BeachGuard System (IDPH): advisories and closures, E. coli results
- Source record number
- 84-20260803T0800
- Original notice
- Read the original notice
- Earlier version
- None: this is the first record
- Later versions
- None
Record details
| Record identifier | il-idph-beachguard:84-20260803T0800 |
|---|---|
| Source identifier | il-idph-beachguard |
| Source record number | 84-20260803T0800 |
| Earlier version | Not provided |
| Type | Beach closure |
| Status in the report | Advisory active |
| Sewer operator identifier | Not provided |
| Sewer operator | Not provided |
| Federal wastewater discharge permit (NPDES) | Not provided |
| Outlet number | Not provided |
| Outlet name | Not provided |
| Water named in the report | McCullom Lake |
| Linked waters | mccullom-lake-il |
| How this report was linked to the water | the water named in the report |
| Latitude | 42.36 |
| Longitude | -88.282 |
| Location source | given in the source record |
| Location accuracy, in metres | Not provided |
| Started | Aug 3, 2026, 8:00 AM CDT (2026-08-03T08:00:00-05:00) |
| Ended | Not provided |
| Detail provided by the source | to the minute |
| Reported to the source | Not provided |
| Published | Not provided |
| Source last updated | Nov 6, 2026, 2:41 AM CST (2026-11-06T08:41:54Z) |
| Last retrieved by DirtyWaterWatch | Nov 6, 2026, 2:41 AM CST (2026-11-06T08:41:54Z) |
| Material | Not provided |
| Volume, in gallons | Not provided |
| Volume as reported | Not provided |
| How volume was determined | not stated whether estimated or measured |
| Authority | McHenry County Health Department (Illinois BeachGuard System) |
| Advice | Quoted in full above |
| Advice period, in hours | Not provided |
| Basis of the advice period | Not provided |
| Original notice | https://idph.illinois.gov/envhealth/ilbeaches/public/BeachDetail.aspx?BeachId=84 |
Original source data
{
"title": "Beach Closed by Operator - McCullom Lake - Petersen Park Beach",
"advisory_type": "Beach Closed by Operator",
"beach": "Petersen Park Beach",
"start_text": "8/03/2026 8:00 AM",
"issued_by": "McHenry County Health Department",
"comment": "beach closed for the 2026 season per operator",
"county": "MCHENRY",
"accessibility": "Public Owned, Public Access",
"first_listed_at": "2026-11-04T15:29:07Z",
"last_listed_at": "2026-11-06T08:41:54Z",
"start_basis": "the beach page's start date",
"closure_kind": "closed by the beach's operator (reason not given)"
} Staff names, email addresses and phone numbers are removed from source data before it is stored.