Rocky Pond
Merrimack County, New Hampshire83 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 35 ft max depth
Rocky Pond in Merrimack County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 35 ft. Surface area: 83 acres.
Rocky Pond is a 83-acre lake in Merrimack County, New Hampshire with a maximum depth of 35 feet (18-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Rocky Pond is good for
From access and monitoring records, not editorial picks.
- Deep water35 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Rocky Pond is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nuisance exotic species, pH / acidity. Check local advisories before you swim.
Whether Rocky Pond 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 Rocky Pond
These are the measurements NHDES publishes for Rocky Pond, 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 Rocky Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
35 ft
Average depth
17.7 ft
Surface area
83 acres
Shoreline
2 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
Stays via Stay22
Stays near Rocky Pond
Compare lakeside cabins, hotels, and vacation rentals near Rocky Pond in Merrimack County, New Hampshire — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Rocky Pond
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Rocky Pond’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Rocky Pond
EPA Impairment Status
Rocky Pond 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, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK700060201-04 · Official waterbody report
Nearby Lakes in Merrimack County
Frequently asked questions about Rocky Pond
Where is Rocky Pond?
- Rocky Pond is a lake in Merrimack County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Rocky Pond?
- Rocky Pond in Merrimack County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 35 ft. Surface area: 83 acres.
Is Rocky Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Rocky Pond is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nuisance exotic species, pH / acidity. Check local advisories before you swim.
How deep is Rocky Pond?
- Rocky Pond has a maximum depth of 35 feet and an average depth of 17.7 feet. The lake covers 83 acres.
Explore Rocky Pond across LakeQuality
More lakes in New Hampshire
Other Lakes in New Hampshire
Where this data comes from
Measurements for Rocky Pond 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