Edward MacDowell Reservoir
Hillsborough County, New Hampshire104 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 4 ft max depth
- Public access
Edward MacDowell Reservoir in Hillsborough County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 3.6 ft. Surface area: 104 acres.
Edward MacDowell Reservoir is a 104-acre lake in Hillsborough County, New Hampshire with a maximum depth of 4 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Edward MacDowell Reservoir is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Edward MacDowell Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Edward MacDowell Reservoir is safe to swim in today is a call for the New Hampshire Department of Environmental Services and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Edward MacDowell Reservoir
These are the measurements NHDES publishes for Edward MacDowell Reservoir, 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 Edward MacDowell Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
3.6 ft
Surface area
104 acres
Shoreline
4.9 mi
Public access
Yes
Listed by NHDES
Recreation & Access
- Richardson RoadPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Edward MacDowell Reservoir
- Edward MacDowell Lake Day Use Facilities1.1 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
Stays via Stay22
Stays near Edward MacDowell Reservoir
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Fishing Edward MacDowell Reservoir
EPA Impairment Status
Edward MacDowell Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK700030103-06 · Official waterbody report
Nearby Lakes in Hillsborough County
Frequently asked questions about Edward MacDowell Reservoir
Where is Edward MacDowell Reservoir?
- Edward MacDowell Reservoir is a lake in Hillsborough County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Edward MacDowell Reservoir?
- Edward MacDowell Reservoir in Hillsborough County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 3.6 ft. Surface area: 104 acres.
Is Edward MacDowell Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Edward MacDowell Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Edward MacDowell Reservoir?
- Edward MacDowell Reservoir has a maximum depth of 3.6 feet. The lake covers 104 acres.
Are there boat ramps on Edward MacDowell Reservoir?
- Edward MacDowell Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Richardson Road. Public access is listed as yes.
Can I fish at Edward MacDowell Reservoir?
- Edward MacDowell Reservoir 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 New Hampshire's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Edward MacDowell Reservoir?
- Edward MacDowell Reservoir has 1 public campground from USGS The National Map within 5 km, including Edward MacDowell Lake Day Use Facilities. 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 Edward MacDowell Reservoir 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