Blue Marsh Lake
Berks County, Pennsylvania1,178 acresView mapDirections
No nutrient or algae sampling on record from PA DEP for this lake.
- Impaired · Nutrients (phosphorus, nitrogen)
- 53 ft max depth
- Public access
- Limited data
Blue Marsh Lake in Berks County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Maximum depth: 53 ft. Surface area: 1178 acres.
Blue Marsh Lake is a 1,178-acre lake in Berks County, Pennsylvania with a maximum depth of 53 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, PA DEP, last sampled 2026-09-07. Methodology: how these readings are compared.
What Blue Marsh Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
- Deep water53 ft surveyed max depth
- Big water1,178 acres
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. Blue Marsh Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO), pathogens (E. coli, fecal). Check local advisories before you swim.
Whether Blue Marsh Lake 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 Blue Marsh Lake
These are the measurements PA DEP publishes for Blue Marsh 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.
Ask about Blue Marsh Lake
Answers come straight from the public measurements and survey records on this page.
→ Blue Marsh Lake water level: the live USGS gauge reading
Lake Details
Max depth
53 ft
Surface area
1,178 acres
Shoreline
36.3 mi
Public access
Yes
Listed by PA DEP
Recreation & Access
- Sheidy RoadPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Blue Marsh Lake
- Blue Marsh Lake (dry Brooks Day Use Area)3.9 kmReserve
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
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Stays near Blue Marsh Lake
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Fishing Blue Marsh Lake
EPA Impairment Status
Blue Marsh Lake 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, Recreation, Other.
Source: EPA ATTAINS assessment unit PA-LRP-02040203008645 · Official waterbody report
Nearby Lakes in Berks County
Frequently asked questions about Blue Marsh Lake
Where is Blue Marsh Lake?
- Blue Marsh Lake is a lake in Berks County, Pennsylvania. Its water-quality measurements are published by PA DEP and shown on this page as reported.
What is the water quality of Blue Marsh Lake?
- Blue Marsh Lake in Berks County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Maximum depth: 53 ft. Surface area: 1178 acres.
Is Blue Marsh Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Blue Marsh Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO), pathogens (E. coli, fecal). Check local advisories before you swim.
How deep is Blue Marsh Lake?
- Blue Marsh Lake has a maximum depth of 53 feet. The lake covers 1178 acres.
Are there boat ramps on Blue Marsh Lake?
- Blue Marsh Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Sheidy Road. Public access is listed as yes.
Can I fish at Blue Marsh Lake?
- Blue Marsh 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 Pennsylvania's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Blue Marsh Lake?
- Blue Marsh Lake has 1 public campground from USGS The National Map within 5 km, including Blue Marsh Lake (dry Brooks Day Use Area). This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
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Where this data comes from
Measurements for Blue Marsh Lake 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
Public campgrounds from USGS The National Map Structures, within about 3 miles