Lake Bonney
Lake Bonney in SA, Australia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.9 m visibility. Chlorophyll-a (algae): 18.5 µg/L.
- Clarity
- 0.9 m
Why Lake Bonney has no A–F grade
Lake Bonney in Australia 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 and algae (chlorophyll-a), but not phosphorus.
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: CSIRO (Commonwealth Scientific and Industrial Research Organisation).
Lake Bonney is a lake in SA County, Australia.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-02-10. Grade methodology: LakeGrade methodology.
Watch Lake Bonney water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Bonney
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 2.8 ft of visibility. Chlorophyll-a: 18.5 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.87 m | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 18.5 µg/L | Not graded |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Bonney
Compare lakeside cabins, hotels, and vacation rentals near Lake Bonney in SA, Australia — 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 Lake Bonney
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Lake Bonney
Frequently asked questions about Lake Bonney
What is the water quality of Lake Bonney?
- Lake Bonney in SA, Australia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.9 m visibility. Chlorophyll-a (algae): 18.5 µg/L.
Is Lake Bonney safe to swim in?
- Lake Bonney 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 Lake Bonney across LakeGrade
More lakes in Australia
Where this data comes from
12 measurements from 3 monitoring stations, 2020–2021. Retrieved from CSIRO inland waters bio-optical sampling (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- CSIRO
csiro-inland-biooptical12 samples · 2020–2021
Analytical methods
- CSIRO inland waters bio-optical (surface HPLC chlorophyll-a, Secchi)
Monitoring station identifiers (3)
BON_01BON_02BON_03
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: 2021-02-10
Monitoring stations: 3