Brookville Lake
Union County, Indiana4,364 acresView mapDirections
IDEM publishes the water-quality measurements for Brookville Lake. Here is what has been measured.
- Mesotrophic
- Public access
Brookville Lake in Union County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 49 µg/L. Chlorophyll-a (algae): 5.4 µg/L. Surface area: 4364 acres.
Brookville Lake is a 4,364-acre mesotrophic lake in Union County, Indiana. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, IDEM, last sampled 2026-09-07. Methodology: how these readings are compared.
What Brookville Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Big water4,364 acres
Swimming conditions
Readings onlyModerate algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Brookville Lake is safe to swim in today is a call for the Indiana Department of Environmental Management and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Brookville Lake
These are the measurements IDEM publishes for Brookville Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 49 µg/L. Chlorophyll-a 5.4 µg/L.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 49µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 5.4µg/L | Good GoodFairPoor |
Moderate nutrients, good water quality
Ask about Brookville Lake
Answers come straight from the public measurements and survey records on this page.
→ Brookville Lake water level: the live USGS gauge reading
Lake Details
Surface area
4,364 acres
Shoreline
46.3 mi
Public access
Yes
Listed by IDEM
No bathymetric survey has been published for Brookville Lake, so its depth is not documented here.
Recreation & Access
- Egypt HollowPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Brookville Lake
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Fishing Brookville Lake
Nearby Lakes in Union County
Frequently asked questions about Brookville Lake
Where is Brookville Lake?
- Brookville Lake is a lake in Union County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.
What is the water quality of Brookville Lake?
- Brookville Lake in Union County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 49 µg/L. Chlorophyll-a (algae): 5.4 µg/L. Surface area: 4364 acres.
Is Brookville Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Brookville Lake?
- Brookville Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Egypt Hollow. Public access is listed as yes.
Can I fish at Brookville Lake?
- Brookville Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Indiana's fish and wildlife agency, so check its current regulations before you go.
Explore Brookville Lake across LakeQuality
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Where this data comes from
Measurements for Brookville Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory