South Walsham Broad
Essex Norfolk and Suffolk, EnglandView mapDirections
EA publishes the water-quality measurements for South Walsham Broad. Here is what has been measured.
- Limited data
South Walsham Broad in Essex Norfolk and Suffolk, England has official water-quality measurements, shown as reported. Phosphorus: 150 µg/L. Chlorophyll-a (algae): 79.2 µg/L.
How South Walsham Broad is classified
South Walsham 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).
South Walsham Broad is a lake in Essex Norfolk and Suffolk County, England.
Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-07-20. 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 South Walsham 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 South Walsham Broad
These are the measurements EA publishes for South Walsham Broad. More on the source.
No clarity data. Phosphorus 150 µg/L. Chlorophyll-a 79.2 µg/L. TSI 75.
| 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 | 150µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 79.2µg/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. | 75 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about South Walsham Broad
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near South Walsham Broad
Compare lakeside cabins, hotels, and vacation rentals near South Walsham Broad in Essex Norfolk and Suffolk, England — 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.
Top-rated places to stay near South Walsham Broad
Prices for Oct 2–4, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow South Walsham Broad’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing South Walsham Broad
Frequently asked questions about South Walsham Broad
Where is South Walsham Broad?
- South Walsham 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 South Walsham Broad?
- South Walsham Broad in Essex Norfolk and Suffolk, England has official water-quality measurements, shown as reported. Phosphorus: 150 µg/L. Chlorophyll-a (algae): 79.2 µg/L.
Is South Walsham Broad safe to swim in?
- South Walsham 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.
Explore South Walsham Broad across LakeQuality
More lakes in England
Where this data comes from
201 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-wqa201 samples · 2016–2026
Monitoring station identifiers (1)
AN-BUR310
Authority classifications are shown as the authority published them. See where the data comes from and data sources.