Woodhaven Lake
Lee County, IllinoisView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- 30 ft max depth
- Limited data
Woodhaven Lake in Lee County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.7 ft visibility.
- Clarity
- 6.7 ft
- Max depth
- ~30 ft est.
Stays via Stay22
Stays near Woodhaven Lake
Compare lakeside cabins, hotels, and vacation rentals near Woodhaven Lake in Lee County, Illinois — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Woodhaven Lake
Prices for Sep 11–13, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Illinois’s top lakes →
Watch Woodhaven Lake’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Why Woodhaven Lake has no grade
Woodhaven Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Woodhaven Lake is Not Rated — not an F. Its 6.7-foot median from 1 readings collected 2021 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by Illinois EPA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Woodhaven Lake is a lake in Lee County, Illinois with an estimated average depth of about 30 feet.
Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled 2021-07-12. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Woodhaven Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 6.7 ft. TSI 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~30 ft est. |
| Average Depth | ~10 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Illinois has not published bathymetry for Woodhaven Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Woodhaven Lake
Reservoir Info (USACE NID)
Woodhaven Lake is a man-made reservoir impounded by the Woodhaven Lake Dam (completed 1975), built primarily for recreation on the TRIB GREEN RIVER; earth-type dam, 33 ft tall and 262 ft long.
- Normal storage
- 282 ac-ft
- Max storage
- 456 ac-ft
- Hazard class
- Low
- Owner
- WOODHAVEN ASSOCIATION
Source: USACE National Inventory of Dams, NID ID IL01148 · Operator website
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Woodhaven Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Amboy Stp, City OfAmboy · 3.5 mi away · NPDES IL0027472Recent violation
- Woodhaven Lakes Campground StpSublette · 0.7 mi away · NPDES IL0045543
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Woodhaven Lake
Woodhaven Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Lee County
Frequently asked questions about Woodhaven Lake
Where is Woodhaven Lake?
- Woodhaven Lake is a lake in Lee County, Illinois. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Woodhaven Lake?
- Woodhaven Lake in Lee County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.7 ft visibility.
Is Woodhaven Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Woodhaven Lake?
- No published bathymetric survey covers Woodhaven Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 30 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Woodhaven Lake across LakeQuality
More Illinois Lake Rankings
Other Lakes in Illinois
Mesotrophic Lakes in Illinois
Where this data comes from
1 measurement from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS1 sample · 2021
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)