Black Pond
Middlesex County, Connecticut76 acresView mapDirections
CT DEEP publishes the water-quality measurements for Black Pond. Here is what has been measured.
- Mesotrophic
- Public access
- Limited data
Black Pond in Middlesex County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Surface area: 76 acres.
Black Pond is a 76-acre mesotrophic lake in Middlesex County, Connecticut. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 4 other monitored lakes in Middlesex County, Black Pond ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-06-28. Methodology: how these readings are compared.
What Black Pond is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Black Pond 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.
Water quality measurements for Black Pond
These are the measurements CT DEEP publishes for Black 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. Phosphorus 18 µg/L. Chlorophyll-a 3.6 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 18µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 3.6µg/L | Measured, not scored 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. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Black Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
76 acres
Public access
Yes
Listed by CT DEEP
No bathymetric survey has been published for Black Pond, so its depth is not documented here.
Recreation & Access
- Black PondPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Black Pond
Compare lakeside cabins, hotels, and vacation rentals near Black Pond in Middlesex 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 Black Pond
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.
Follow Black Pond’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Black Pond
Reservoir Info (USACE NID)
Black Pond is a man-made reservoir impounded by the Black Pond Dam (completed 1880), built primarily for recreation on the Spoon Shop Brook; earth-type dam, 26 ft tall and 200 ft long.
- Surface area
- 76 ac
- Normal storage
- 123 ac-ft
- Max storage
- 353 ac-ft
- Drainage area
- 1.2 sq mi
- Hazard class
- High
- Owner
- City of Meriden
Source: USACE National Inventory of Dams, NID ID CT00135 · Operator website
Nearby Lakes in Middlesex County
Frequently asked questions about Black Pond
Where is Black Pond?
- Black Pond is a lake in Middlesex County, Connecticut. Its water-quality measurements are published by CT DEEP and shown on this page as reported.
What is the water quality of Black Pond?
- Black Pond in Middlesex County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Surface area: 76 acres.
Is Black Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Black Pond?
- Black Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Black Pond. Public access is listed as yes.
Can I fish at Black Pond?
- Black Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Connecticut's fish and wildlife agency, so check its current regulations before you go.
Explore Black Pond across LakeQuality
More lakes in Connecticut
Other Lakes in Connecticut
Mesotrophic Lakes in Connecticut
Where this data comes from
10 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- Connecticut Department Of Energy And Environmental Protection
CT_DEP01_WQX10 samples · 2023
Analytical methods
- Total Phosphorus After Block Digestion
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- Nitrate-Nitrite Nitrogen by Colorimetry
- Turbidity by Nephelometry
Monitoring station identifiers (1)
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
Named boat-access points from the USGS National Boat Ramps inventory