Mullutu Laht Lake
Mullutu Laht Lake in Saare, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.8 m visibility. Phosphorus: 25.5 µg/L. Chlorophyll-a (algae): 5.8 µg/L. Maximum depth: 5.6 ft. Surface area: 1014.4 acres.
- Clarity
- 0.8 m
- Max depth
- 1.7 m
- Area
- 411 ha
Why Mullutu Laht Lake has no A–F grade
Mullutu Laht Lake in Estonia 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 Estonian Environment Agency (Keskkonnaagentuur).
Mullutu Laht Lake is a 1,014-acre lake in Saare County, Estonia with a maximum depth of 6 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-09-23. 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 Mullutu Laht Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 2.5 ft of visibility. Phosphorus level: 25.5 µg/L. Chlorophyll-a: 5.8 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.75 m | Not graded |
| Phosphorus | 25.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 5.8 µg/L | Not graded |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 1.7 m |
| Surface Area | 411 ha |
Where to stay near Mullutu Laht Lake
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Fishing Mullutu Laht Lake
Frequently asked questions about Mullutu Laht Lake
What is the water quality of Mullutu Laht Lake?
- Mullutu Laht Lake in Saare, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.8 m visibility. Phosphorus: 25.5 µg/L. Chlorophyll-a (algae): 5.8 µg/L. Maximum depth: 5.6 ft. Surface area: 1014.4 acres.
Is Mullutu Laht Lake safe to swim in?
- Mullutu Laht Lake 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.
How deep is Mullutu Laht Lake?
- Mullutu Laht Lake has a maximum depth of 5.6 feet. The lake covers 1014.4 acres.
Explore Mullutu Laht Lake across LakeGrade
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Where this data comes from
24 measurements from 2 monitoring stations, 2018–2024. Retrieved from KESE / Estonian Environment Agency (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Estonian Environment Agency (Keskkonnaagentuur)
kese-ee24 samples · 2018–2024
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (2)
SJA7095007SJA7030000
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: 2024-09-23
Monitoring stations: 2