Lake Terramuggus
Lake Terramuggus in Hartford County, Connecticut has a water quality grade of D (Nutrient-rich). Phosphorus: 31 µg/L. Chlorophyll-a (algae): 0.9 µg/L. Surface area: 83 acres.
- Area
- 83 acres
- Type
- Mesotrophic
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Lake Terramuggus →
Lake Terramuggus is a 83-acre mesotrophic lake in Hartford County, Connecticut. Water quality is graded D based on 2 sampling years through 2023. Compared to the 3 other monitored lakes in Hartford County, Lake Terramuggus ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-07-25. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus level: 31 µg/L. Chlorophyll-a: 0.9 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 31 µg/L | Poor |
| Chlorophyll-a (Algae) | 0.9 µg/L | Not graded |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake Terramuggus
Compare lakeside cabins, hotels, and vacation rentals near Lake Terramuggus in Hartford 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Lake Terramuggus are listed below.
Top-rated places to stay near Lake Terramuggus
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 83 acres |
No bathymetric survey has been published for Lake Terramuggus, so its depth is not documented here.
Fishing Lake Terramuggus
Reservoir Info (USACE NID)
Lake Terramuggus is a man-made reservoir impounded by the Lake Terramuggas Dam, built primarily for recreation on the Dickinson Creek Trib; earth-type dam, 5 ft tall and 800 ft long.
- Surface area
- 83 ac
- Normal storage
- 0 ac-ft
- Hazard class
- Significant
- Owner
- Town of Marlborough
Source: USACE National Inventory of Dams, NID ID CT01833 · Operator website · Matched by proximity (0.86 km)
County Ranking
Ranked #4 of 4 lakes in Hartford County
Nearby Lakes in Hartford County
Frequently asked questions about Lake Terramuggus
Where is Lake Terramuggus?
- Lake Terramuggus is a lake in Hartford County, Connecticut. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Terramuggus?
- Lake Terramuggus in Hartford County, Connecticut has a water quality grade of D (Nutrient-rich). Phosphorus: 31 µg/L. Chlorophyll-a (algae): 0.9 µg/L. Surface area: 83 acres.
Is Lake Terramuggus safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Lake Terramuggus has a water quality grade of D (Nutrient-rich). Algae concentration (chlorophyll-a) is 0.9 µg/L. Always check local health department advisories before swimming.
Explore Lake Terramuggus across LakeGrade
More Connecticut Lake Rankings
Other Grade D 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)
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.