Lake Williams
York County, Pennsylvania168 acresView mapDirections
No nutrient or algae sampling on record from PA DEP for this lake.
- Impaired · pH / acidity
- 36 ft max depth
- Public access
Lake Williams in York County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Maximum depth: 36 ft. Surface area: 168 acres.
Lake Williams is a 168-acre lake in York County, Pennsylvania with a maximum depth of 36 feet (13-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, PA DEP. Methodology: how these readings are compared.
What Lake Williams is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Deep water36 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Lake Williams is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Whether Lake Williams is safe to swim in today is a call for the Pennsylvania Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Williams
These are the measurements PA DEP publishes for Lake Williams, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Lake Williams
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
36 ft
Average depth
13 ft
Surface area
168 acres
Shoreline
4.6 mi
Public access
Yes
Listed by PA DEP
Recreation & Access
- William Kain County Park - Lake WilliamsPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Lake Williams
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Fishing Lake Williams
EPA Impairment Status
Lake Williams is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit PA-LRP-02050306002290 · Official waterbody report
Nearby Lakes in York County
Frequently asked questions about Lake Williams
Where is Lake Williams?
- Lake Williams is a lake in York County, Pennsylvania. Its water-quality measurements are published by PA DEP and shown on this page as reported.
What is the water quality of Lake Williams?
- Lake Williams in York County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Maximum depth: 36 ft. Surface area: 168 acres.
Is Lake Williams safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Williams is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
How deep is Lake Williams?
- Lake Williams has a maximum depth of 36 feet and an average depth of 13 feet. The lake covers 168 acres.
Are there boat ramps on Lake Williams?
- Lake Williams has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include William Kain County Park - Lake Williams. Public access is listed as yes.
Can I fish at Lake Williams?
- Lake Williams 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 Pennsylvania's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
Measurements for Lake Williams come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory