장성댐
장성댐 in Unknown, South Korea has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2 m visibility. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 6.4 µg/L.
- Clarity
- 2 m
Why 장성댐 has no A–F grade
장성댐 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).
장성댐 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 장성댐
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 6.6 ft. Phosphorus level: 18 µg/L. Chlorophyll-a: 6.4 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 m | Not graded |
| Phosphorus | 18 µg/L | Not graded |
| Chlorophyll-a (Algae) | 6.4 µg/L | Not graded |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near 장성댐
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Fishing 장성댐
Frequently asked questions about 장성댐
What is the water quality of 장성댐?
- 장성댐 in Unknown, South Korea has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2 m visibility. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 6.4 µg/L.
Is 장성댐 safe to swim in?
- 장성댐 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
720 measurements from 2 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-kr720 samples · 2016–2025
Analytical methods
- NIER national water-quality network (호소 surface chemistry)
Monitoring station identifiers (2)
5002B105002B20
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.