Manitook Lake
Manitook Lake in Hartford County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 13.9 ft visibility. Surface area: 0.3 acres.
- Clarity
- 13.9 ft
- Area
- 0 acres
Why Manitook 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 Manitook 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.
Manitook Lake is a 0-acre lake in Hartford County, Connecticut.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-10-15. 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 Manitook Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Good clarity, visible to about 13.9 ft. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.9 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Manitook Lake
Compare lakeside cabins, hotels, and vacation rentals near Manitook Lake 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.
Top-rated places to stay near Manitook Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 0 acres |
No bathymetric survey has been published for Manitook Lake, so its depth is not documented here.
Fishing Manitook Lake
Reservoir Info (USACE NID)
Manitook Lake is a man-made reservoir impounded by the Manitook Lake Dam, built primarily for recreation on the Salmom Brook; earth-type dam, 12 ft tall and 30 ft long.
- Surface area
- 0.3 ac
- Normal storage
- 0 ac-ft
- Drainage area
- 1.59 sq mi
- Hazard class
- Significant
- Owner
- Radwillowicz
Source: USACE National Inventory of Dams, NID ID CT00918 · Operator website
Graded lakes near Manitook Lake
Manitook Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Hartford County
Frequently asked questions about Manitook Lake
Where is Manitook Lake?
- Manitook Lake is a lake in Hartford 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 Manitook Lake?
- Manitook Lake in Hartford County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 13.9 ft visibility. Surface area: 0.3 acres.
Is Manitook Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Manitook 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 Manitook Lake across LakeGrade
More Connecticut Lake Rankings
Other Lakes in Connecticut
Oligotrophic Lakes in Connecticut
Where this data comes from
17 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- CT DEEP Volunteer Water Monitoring Program (Volunteer)
CTVOLMON17 samples · 2024
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.