Bantam Lake
Bantam Lake in Litchfield County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.1 ft visibility.
- Clarity
- 6.1 ft
Why Bantam Lake 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 Bantam Lake, 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.
Bantam Lake is a lake in Litchfield County, Connecticut.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-08-01. Grade methodology: LakeGrade methodology.
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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 Bantam Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 6.1 ft. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.1 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Bantam Lake
Compare lakeside cabins, hotels, and vacation rentals near Bantam Lake in Litchfield 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 Bantam Lake
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Fishing Bantam Lake
EPA Impairment Status
Bantam Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit CT6705-00-3-L3_01 · Official waterbody report · Matched by proximity (0.21 km)
Graded lakes near Bantam Lake
Bantam Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Litchfield County
Frequently asked questions about Bantam Lake
Where is Bantam Lake?
- Bantam Lake is a lake in Litchfield 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 Bantam Lake?
- Bantam Lake in Litchfield County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.1 ft visibility.
Is Bantam Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Bantam Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Bantam Lake across LakeGrade
More Connecticut Lake Rankings
Other Lakes in Connecticut
Eutrophic Lakes in Connecticut
Where this data comes from
252 measurements from 5 monitoring stations, 2021–2024. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- North American Lake Management Society
NALMS157 samples · 2021–2024 - CT DEEP Volunteer Water Monitoring Program (Volunteer)
CTVOLMON95 samples · 2022–2024
Monitoring station identifiers (5)
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