Hickling Broad
Essex Norfolk and Suffolk, EnglandView mapDirections
EA publishes the water-quality measurements for Hickling Broad. Here is what has been measured.
- Limited data
Hickling Broad in Essex Norfolk and Suffolk, England has official water-quality measurements, shown as reported. Phosphorus: 58.5 µg/L. Chlorophyll-a (algae): 30.3 µg/L.
How Hickling Broad is classified
Hickling Broad in England 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 phosphorus and algae (chlorophyll-a), but not water clarity.
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Environment Agency (England).
Hickling Broad is a lake in Essex Norfolk and Suffolk County, England.
Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-07-22. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Hickling Broad is safe to swim in today is a call for the Environment Agency (England) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Hickling Broad
These are the measurements EA publishes for Hickling Broad. More on the source.
No clarity data. Phosphorus 58.5 µg/L. Chlorophyll-a 30.3 µg/L. TSI 63.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 58.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 30.3µg/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. | 63 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Frequently asked questions about Hickling Broad
Where is Hickling Broad?
- Hickling Broad is a lake in Essex Norfolk and Suffolk, England. This page reports official water-quality measurements, shown as reported.
What is the water quality of Hickling Broad?
- Hickling Broad in Essex Norfolk and Suffolk, England has official water-quality measurements, shown as reported. Phosphorus: 58.5 µg/L. Chlorophyll-a (algae): 30.3 µg/L.
Is Hickling Broad safe to swim in?
- Hickling Broad 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
225 measurements from 1 monitoring station, 2016–2026. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Environment Agency (England)
ea-wqa225 samples · 2016–2026
Monitoring station identifiers (1)
AN-THR030A
Authority classifications are shown as the authority published them. See where the data comes from and data sources.