Lake Naraneka
Lake Naraneka in Fairfield County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.9 ft visibility. Surface area: 55 acres.
- Clarity
- 4.9 ft
- Area
- 55 acres
Why Lake Naraneka 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 Lake Naraneka, 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.
Lake Naraneka is a 55-acre lake in Fairfield County, Connecticut.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-10-25. Grade methodology: LakeGrade methodology.
Watch Lake Naraneka 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 Lake Naraneka
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 4.9 ft. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.9 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Naraneka
Compare lakeside cabins, hotels, and vacation rentals near Lake Naraneka in Fairfield 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 Lake Naraneka
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 55 acres |
No bathymetric survey has been published for Lake Naraneka, so its depth is not documented here.
Fishing Lake Naraneka
Reservoir Info (USACE NID)
Lake Naraneka is a man-made reservoir impounded by the Lake Naraneka Dam (completed 1937), built primarily for recreation on the Shadow Brok Titicus River; concrete-type dam, 18 ft tall and 156 ft long.
- Surface area
- 55 ac
- Normal storage
- 490 ac-ft
- Max storage
- 677 ac-ft
- Drainage area
- 0.46 sq mi
- Hazard class
- Significant
- Owner
- Twixt Hills Homeowners Assoc., Inc.
Source: USACE National Inventory of Dams, NID ID CT00223 · Operator website
EPA Impairment Status
Lake Naraneka is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit CT8104-00-2-L5_01 · Official waterbody report · Matched by proximity (1.71 km)
Graded lakes near Lake Naraneka
Lake Naraneka has no grade, but these lakes within a short drive do.
Nearby Lakes in Fairfield County
Frequently asked questions about Lake Naraneka
Where is Lake Naraneka?
- Lake Naraneka is a lake in Fairfield 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 Lake Naraneka?
- Lake Naraneka in Fairfield County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.9 ft visibility. Surface area: 55 acres.
Is Lake Naraneka safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Naraneka is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Lake Naraneka across LakeGrade
More Connecticut Lake Rankings
Other Lakes in Connecticut
Eutrophic Lakes in Connecticut
Where this data comes from
47 measurements from 3 monitoring stations, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- CT DEEP Volunteer Water Monitoring Program (Volunteer)
CTVOLMON42 samples · 2024–2025 - North American Lake Management Society
NALMS5 samples · 2024
Monitoring station identifiers (3)
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
Impairment status from EPA ATTAINS 303(d) database