Glasgo Pond
Glasgo Pond in New London County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.9 ft visibility. Surface area: 184.2 acres.
- Clarity
- 5.9 ft
- Area
- 184 acres
- Public access
- Yes
Why Glasgo 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 Glasgo Pond, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). 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.
Glasgo Pond is a 184-acre lake in New London County, Connecticut. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-08-31. Grade methodology: LakeGrade methodology.
Watch Glasgo 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 Glasgo Pond
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 5.9 ft. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.9 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Glasgo Pond
Compare lakeside cabins, hotels, and vacation rentals near Glasgo 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 Glasgo Pond
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 184 acres |
| Public Access | Yes |
No bathymetric survey has been published for Glasgo Pond, so its depth is not documented here.
Recreation & Access
- Glasgo PondPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Glasgo Pond
Reservoir Info (USACE NID)
Glasgo Pond is a man-made reservoir impounded by the Glasgo Pond Dam (completed 1860), built primarily for recreation on the Pachaug River; masonry-type dam, 26 ft tall and 375 ft long.
- Surface area
- 184.2 ac
- Normal storage
- 2,208 ac-ft
- Drainage area
- 37.8 sq mi
- Hazard class
- High
- Owner
- Connecticut DEEP
Source: USACE National Inventory of Dams, NID ID CT00084 · Operator website
Graded lakes near Glasgo Pond
Glasgo Pond has no grade, but these lakes within a short drive do.
Nearby Lakes in New London County
Frequently asked questions about Glasgo Pond
Where is Glasgo Pond?
- Glasgo 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 Glasgo Pond?
- Glasgo Pond in New London County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.9 ft visibility. Surface area: 184.2 acres.
Is Glasgo Pond safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Glasgo 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 Glasgo Pond?
- Glasgo Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Glasgo Pond. Public access is listed as yes.
Explore Glasgo Pond across LakeGrade
More Connecticut Lake Rankings
Other Lakes in Connecticut
Eutrophic Lakes in Connecticut
Where this data comes from
2 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- North American Lake Management Society
NALMS2 samples · 2021
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
Named boat-access points from the USGS National Boat Ramps inventory