Rust Pond
Rust Pond in Carroll County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 18 ft visibility. Surface area: 242 acres.
- Clarity
- 18 ft
- Area
- 242 acres
- Public access
- Yes
Why Rust Pond has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Rust Pond, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Rust Pond is a 242-acre lake in Carroll County, New Hampshire. Limited fish-species data available. Public access is available with 4 public boat landings.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-07-24. Grade methodology: LakeGrade methodology.
Watch Rust Pond water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Rust Pond
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Crystal clear, you can see 18 ft down. Trophic State Index: 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Rust Pond
Compare lakeside cabins, hotels, and vacation rentals near Rust Pond in Carroll 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 Rust Pond
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 242 acres |
| Public Access | Yes |
No bathymetric survey has been published for Rust Pond, so its depth is not documented here.
Recreation & Access
- Mast LandingPublic
- Wolfeboro Town DocksPublic
- Back BayPublic
- Wolfeboro Yacht ClubSemi-private
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Rust Pond
Reservoir Info (USACE NID)
Rust Pond is a man-made reservoir impounded by the Rust Pond Dam, built primarily for recreation on the Perry Brook; concrete-type dam, 8 ft tall and 80 ft long.
- Surface area
- 242 ac
- Normal storage
- 6,886 ac-ft
- Max storage
- 7,464 ac-ft
- Drainage area
- 2.67 sq mi
- Hazard class
- Significant
- Owner
- RUST POND ASSOC
Source: USACE National Inventory of Dams, NID ID NH00113 · Operator website
EPA Impairment Status
Rust Pond is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK700020101-07-01 · Official waterbody report
Graded lakes near Rust Pond
Rust Pond has no grade, but these lakes within a short drive do.
Nearby Lakes in Carroll County
Frequently asked questions about Rust Pond
Where is Rust Pond?
- Rust Pond is a lake in Carroll County, New Hampshire. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Rust Pond?
- Rust Pond in Carroll County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 18 ft visibility. Surface area: 242 acres.
Is Rust Pond safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Rust Pond is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Rust Pond?
- Rust Pond has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Mast Landing, Wolfeboro Town Docks, Back Bay, Wolfeboro Yacht Club. Public access is listed as yes.
Explore Rust Pond across LakeGrade
More New Hampshire Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
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Where this data comes from
3 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- North American Lake Management Society
NALMS3 samples · 2020–2023
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory