Lake Rototuna
Lake Rototuna in North Island, New Zealand has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.3 m visibility. Chlorophyll-a (algae): 8 µg/L.
- Clarity
- 2.3 m
Why Lake Rototuna has no A–F grade
Lake Rototuna in New Zealand 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: the GLORIA inland-lake matchup archive (PANGAEA 948492).
Lake Rototuna is a lake in North Island County, New Zealand.
Source: the GLORIA inland-lake matchup archive (PANGAEA 948492) — not the EPA Water Quality Portal, last sampled 2017-11-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Rototuna
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 7.4 ft. Chlorophyll-a: 8 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.26 m | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 8 µg/L | Not graded |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake Rototuna
Compare lakeside cabins, hotels, and vacation rentals near Lake Rototuna in North Island, New Zealand — 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 Rototuna
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Fishing Lake Rototuna
Frequently asked questions about Lake Rototuna
What is the water quality of Lake Rototuna?
- Lake Rototuna in North Island, New Zealand has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.3 m visibility. Chlorophyll-a (algae): 8 µg/L.
Is Lake Rototuna safe to swim in?
- Lake Rototuna 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
2 measurements from 1 monitoring station, 2017. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- GLORIA (PANGAEA 948492)
pangaea-gloria2 samples · 2017
Analytical methods
- PANGAEA GLORIA 2022 inland-lake chlorophyll-a and Secchi
Monitoring station identifiers (1)
GID_2363
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.