Dam Batak is a lake in Bulgaria. This page reports official water-quality measurements, shown as reported.

Is Dam Batak safe to swim in?

Dam Batak 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.

Dam Batak

BulgariaView map Directions

ExEA publishes the water-quality measurements for Dam Batak. Here is what has been measured.

Clarity

2.9 m

Secchi · sampled 2023

Phosphorus

32.4 µg/L

Measured by ExEA

Chlorophyll-a

3 µg/L

Measured by ExEA

Limited data

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Dam Batak in Bulgaria has official water-quality measurements, shown as reported. Water clarity: 2.9 m visibility. Phosphorus: 32.4 µg/L. Chlorophyll-a (algae): 3 µg/L.

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How Dam Batak is classified

Dam Batak in Bulgaria 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 Executive Environment Agency of Bulgaria, via UNEP GEMS/Water.

Dam Batak is a lake in Unknown County, Bulgaria.

Source: the Executive Environment Agency of Bulgaria, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2023-11-28. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Dam Batak is safe to swim in today is a call for the Executive Environment Agency of Bulgaria, via UNEP GEMS/Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Dam Batak

These are the measurements ExEA publishes for Dam Batak. More on the source.

Moderate clarity, visible to about 9.4 ft. Phosphorus 32.4 µg/L. Chlorophyll-a 3 µg/L. TSI 47.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.85m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	32.4µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	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.	47	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

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Answers come straight from the public measurements and survey records on this page.

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Fishing Dam Batak

→ Dam Batak fishing regulations (limits, seasons, special rules)

Frequently asked questions about Dam Batak

Where is Dam Batak?: Dam Batak is a lake in Bulgaria. This page reports official water-quality measurements, shown as reported.
What is the water quality of Dam Batak?: Dam Batak in Bulgaria has official water-quality measurements, shown as reported. Water clarity: 2.9 m visibility. Phosphorus: 32.4 µg/L. Chlorophyll-a (algae): 3 µg/L.
Is Dam Batak safe to swim in?: Dam Batak 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

32 measurements from 1 monitoring station, 2016–2023. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

European Environment Agencyeuropeanenvironmentagenc32 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

BGR00125

Authority classifications are shown as the authority published them. See where the data comes from and data sources.