Avery Pond
Avery Pond in New London County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility.
- Clarity
- 2 ft
- Public access
- Yes
Why Avery 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 Avery 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.
Avery Pond is a lake in New London County, Connecticut. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-05-24. Grade methodology: LakeGrade methodology.
Watch Avery 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 Avery Pond
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 2 ft of visibility. Trophic State Index: 67.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 67 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Avery Pond
Compare lakeside cabins, hotels, and vacation rentals near Avery Pond in New London County, Connecticut — 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 Avery Pond
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Recreation & Access
- Lake of IslesPublic
- Avery PondPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Avery Pond
EPA Impairment Status
Avery Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit CT3002-02-1-L2_01 · Official waterbody report · Matched by proximity (2.65 km)
Graded lakes near Avery Pond
Avery Pond has no grade, but these lakes within a short drive do.
Nearby Lakes in New London County
Frequently asked questions about Avery Pond
Where is Avery Pond?
- Avery Pond is a lake in New London County, Connecticut. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Avery Pond?
- Avery Pond in New London County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility.
Is Avery Pond safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Avery 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 Avery Pond?
- Avery Pond has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lake of Isles, Avery Pond. Public access is listed as yes.
Explore Avery Pond across LakeGrade
More Connecticut Lake Rankings
Other Lakes in Connecticut
Eutrophic Lakes in Connecticut
Where this data comes from
24 measurements from 1 monitoring station, 2023–2024. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- North American Lake Management Society
NALMS24 samples · 2023–2024
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