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LakeQuality

湖山池

NR
Not yet rated
0.8 m clear · Eutrophic
Limited DataEutrophic

湖山池 in Tottori, Japan has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.8 m visibility. Phosphorus: 77 µg/L.

Clarity
0.8 m
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Why 湖山池 has no A–F grade

湖山池 in Japan 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 and phosphorus, but not 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 Ministry of the Environment (Japan).

湖山池 is a lake in Tottori County, Japan.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-03-15. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for 湖山池

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Very murky, less than 2.6 ft of visibility. Phosphorus level: 77 µg/L. Trophic State Index: 65.

MetricValueGrade
Water Clarity (Secchi Depth)0.8 mNot graded
Phosphorus77 µg/LNot graded
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)65Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near 湖山池

Compare lakeside cabins, hotels, and vacation rentals near 湖山池 in Tottori, Japan — 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 湖山池

Frequently asked questions about 湖山池

What is the water quality of 湖山池?

湖山池 in Tottori, Japan has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.8 m visibility. Phosphorus: 77 µg/L.

Is 湖山池 safe to swim in?

湖山池 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.

Where this data comes from

180 measurements from 4 monitoring stations, 2016–2025. Retrieved from Japan MOE public water-body monitoring (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Ministry of the Environment (Japan)moe-jp180 samples · 2016–2025

Analytical methods

  • MOE public water body monitoring (kosui, lakes)
Monitoring station identifiers (4)
  • 3120040
  • 3120050
  • 3120060
  • 3120070

Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.

Data Sources

Water quality data from the EPA Water Quality Portal

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion

Most recent sample: 2025-03-15

Monitoring stations: 4

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