Ermistu Järv
Pärnu, Estonia452 haView mapDirections
KAUR publishes the water-quality measurements for Ermistu Järv. Here is what has been measured.
- 12 ft max depth
- Limited data
Ermistu Järv in Pärnu, Estonia has official water-quality measurements, shown as reported. Water clarity: 1.6 m visibility. Phosphorus: 23 µg/L. Chlorophyll-a (algae): 5.3 µg/L. Maximum depth: 12.1 ft. Surface area: 1117.9 acres.
How Ermistu Järv is classified
Ermistu Järv in Estonia is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Estonian Environment Agency (Keskkonnaagentuur).
Ermistu Järv is a 1,118-acre lake in Pärnu County, Estonia with a maximum depth of 12 feet.
Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2023-09-19. Methodology: how these readings are compared.
What Ermistu Järv is good for
From access and monitoring records, not editorial picks.
- Big water1,118 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Ermistu Järv is safe to swim in today is a call for the Estonian Environment Agency (Keskkonnaagentuur) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Ermistu Järv
These are the measurements KAUR publishes for Ermistu Järv. More on the source.
Murky, only visible to about 5.2 ft. Phosphorus 23 µg/L. Chlorophyll-a 5.3 µg/L. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.6m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 23µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 5.3µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 50 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Ermistu Järv
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
3.7 m
Surface area
452 ha
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Frequently asked questions about Ermistu Järv
Where is Ermistu Järv?
- Ermistu Järv is a lake in Pärnu, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Ermistu Järv?
- Ermistu Järv in Pärnu, Estonia has official water-quality measurements, shown as reported. Water clarity: 1.6 m visibility. Phosphorus: 23 µg/L. Chlorophyll-a (algae): 5.3 µg/L. Maximum depth: 12.1 ft. Surface area: 1117.9 acres.
Is Ermistu Järv safe to swim in?
- Ermistu Järv 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 Ermistu Järv?
- Ermistu Järv has a maximum depth of 12.1 feet. The lake covers 1117.9 acres.
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Where this data comes from
28 measurements from 1 monitoring station, 2017–2023. 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-ee28 samples · 2017–2023
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (1)
SJA9911004
Authority classifications are shown as the authority published them. See where the data comes from and data sources.