Loch Lyndon
Loch Lyndon in Merrimack County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 121 acres.
- Area
- 121 acres
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Why Loch Lyndon has no grade
We grade a lake only when the monitoring record supports a letter: 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 Loch Lyndon, no water-quality sampling on record for this lake.
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.
Loch Lyndon is a 121-acre lake in Merrimack County, New Hampshire.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Loch Lyndon water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Loch Lyndon
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Loch Lyndon
Compare lakeside cabins, hotels, and vacation rentals near Loch Lyndon in Merrimack County, New Hampshire — 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 Loch Lyndon
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 121 acres |
No bathymetric survey has been published for Loch Lyndon, so its depth is not documented here.
Fishing Loch Lyndon
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Frequently asked questions about Loch Lyndon
Where is Loch Lyndon?
- Loch Lyndon is a lake in Merrimack County, New Hampshire. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Loch Lyndon?
- Loch Lyndon in Merrimack County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 121 acres.
Is Loch Lyndon safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Loch Lyndon is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Loch Lyndon across LakeQuality
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Where this data comes from
Measurements for Loch Lyndon come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.