Webster Lake is a 774-acre productive, nutrient-rich eutrophic lake in Kosciusko County, Indiana. Water quality is graded D based on 1 sampling years through 2021. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 18 other monitored lakes in Kosciusko County, Webster Lake ranks #11 for water quality.
Source: EPA Water Quality Portal sampling records, Indiana DNR, last sampled 2021-08-11. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 5.6 ft. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 774 acres |
| Public Access | Yes |
Where to stay near Webster Lake
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Fishing Webster Lake
Recreation & Access
Location
County Ranking
Ranked #11 of 19 lakes in Kosciusko County
Nearby Lakes in Kosciusko County
Explore Webster Lake across LakeGrade
Fish species and top-graded lakes across Indiana
Fish species and best lakes in Kosciusko County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Northern Indiana Lake Country area
High nutrients, frequent algae, reduced clarity
Indiana's cleanest and most-polluted lakes, ranked
More Indiana Lake Rankings
Other Grade D Lakes in Indiana
Eutrophic Lakes in Indiana
More records, surveys & data sources
Reservoir Info (USACE NID)
Webster Lake is a man-made reservoir impounded by the Webster Lake Dam - East (completed 1835), built primarily for recreation on the TIPPECANOE RIVER; gravity-type dam, 12 ft tall and 38 ft long.
- Surface area
- 774 ac
- Normal storage
- 5,389 ac-ft
- Max storage
- 7,545 ac-ft
- Drainage area
- 49.2 sq mi
- Hazard class
- High
- Owner
- Steve Bryant
Source: USACE National Inventory of Dams, NID ID IN00346 · Operator website · Matched by proximity (0.96 km)
EPA Impairment Status
Webster Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit INB06P1046_00 · Official waterbody report · Matched by proximity (2.18 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
9 EPA-permitted facilities operate within about 5 miles of Webster Lake under Clean Water Act (NPDES) discharge permits.
- Epworth Forest Discipleship CenterNorth Webster · 0.6 mi away · NPDES INR10M753
- Epworth Forest Buck LodgeNorth Webster · 0.6 mi away · NPDES INRA00993
- New LibraryNorth Webster · 0.9 mi away · NPDES INRA03856
- Reimer'S Ice Service IncNorth Webster · 1 mi away · NPDES IN0109665
- Crystal Flash #66North Webster · 1 mi away · NPDES ING080269
- Epworth Forest Conference CtrNorth Webster · 1.2 mi away · NPDES IN0037087
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.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2021-08-11
Monitoring stations: 1