횡성댐
횡성댐 in Unknown, South Korea has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.5 m visibility. Phosphorus: 11 µg/L. Chlorophyll-a (algae): 4.3 µg/L.
- Clarity
- 2.5 m
Why 횡성댐 has no A–F grade
횡성댐 in South Korea is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the National Institute of Environmental Research (Korea).
횡성댐 is a lake in Unknown County, South Korea.
Source: the National Institute of Environmental Research (Korea) — not the EPA Water Quality Portal, last sampled 2025-12-15. 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 횡성댐
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 8.2 ft. Phosphorus level: 11 µg/L. Chlorophyll-a: 4.3 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 m | Not graded |
| Phosphorus | 11 µg/L | Not graded |
| Chlorophyll-a (Algae) | 4.3 µg/L | Not graded |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near 횡성댐
Compare lakeside cabins, hotels, and vacation rentals near 횡성댐 in Unknown, South Korea — 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.
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Fishing 횡성댐
Frequently asked questions about 횡성댐
What is the water quality of 횡성댐?
- 횡성댐 in Unknown, South Korea has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.5 m visibility. Phosphorus: 11 µg/L. Chlorophyll-a (algae): 4.3 µg/L.
Is 횡성댐 safe to swim in?
- 횡성댐 has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
937 measurements from 3 monitoring stations, 2016–2025. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- National Institute of Environmental Research (Korea)
nier-kr937 samples · 2016–2025
Analytical methods
- NIER national water-quality network (호소 surface chemistry)
Monitoring station identifiers (3)
1006B101006B201006B30
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.