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Bantam Lake

Litchfield County, ConnecticutView mapDirections

CT DEEP publishes the water-quality measurements for Bantam Lake. Here is what has been measured.

Clarity
6.1 ft
Typical for Connecticut
Secchi · sampled 2024
  • Impaired · Algal growth
  • Limited data

Bantam Lake in Litchfield County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Water clarity: 6.1 ft visibility.

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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. Methodology: how these readings are compared.

What Bantam Lake is good for

From access and monitoring records, not editorial picks.

  • Camping1 public campground nearby

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Bantam Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for algal growth, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Bantam Lake is safe to swim in today is a call for the Connecticut Department of Energy and Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Bantam Lake

These are the measurements CT DEEP publishes for Bantam Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Murky, only visible to about 6.1 ft. TSI 51.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)6.1ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorusNo reading

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)No reading

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.51Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Bantam Lake

Answers come straight from the public measurements and survey records on this page.

Recreation & Access

1
Campgrounds

Public campgrounds near Bantam Lake

  • White Memorial Foundation Family Campground0.8 km

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 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

Prices for Oct 9–11, 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.

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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

Algal growthNutrients (phosphorus, nitrogen)

Designated uses not supporting: Recreation.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit CT6705-00-3-L3_01 · Official waterbody report

Nearby Lakes in Litchfield County

Frequently asked questions about Bantam Lake

Where is Bantam Lake?

Bantam Lake is a lake in Litchfield County, Connecticut. Its water-quality measurements are published by CT DEEP and shown on this page as reported.

What is the water quality of Bantam Lake?

Bantam Lake in Litchfield County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Water clarity: 6.1 ft visibility.

Measurements on this page ↑

Is Bantam Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Bantam Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for algal growth, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Swimming on this page ↑

Are there campgrounds on Bantam Lake?

Bantam Lake has 1 public campground from USGS The National Map within 5 km, including White Memorial Foundation Family Campground. 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.

Access on this page ↑

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 SocietyNALMS157 samples · 2021–2024
  • CT DEEP Volunteer Water Monitoring Program (Volunteer)CTVOLMON95 samples · 2022–2024
Monitoring station identifiers (5)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

Public campgrounds from USGS The National Map Structures, within about 3 miles