Lake Rototuna
North Island, New ZealandView mapDirections
GLORIA publishes the water-quality measurements for Lake Rototuna. Here is what has been measured.
- Limited data
Lake Rototuna in North Island, New Zealand has official water-quality measurements, shown as reported. Water clarity: 2.3 m visibility. Chlorophyll-a (algae): 8 µg/L.
How Lake Rototuna is classified
Lake Rototuna in New Zealand 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 and algae (chlorophyll-a), but not phosphorus.
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is 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. 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 Lake Rototuna is safe to swim in today is a call for the GLORIA inland-lake matchup archive (PANGAEA 948492) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Rototuna
These are the measurements GLORIA publishes for Lake Rototuna. More on the source.
Moderate clarity, visible to about 7.4 ft. Chlorophyll-a 8 µg/L. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.26m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 8µg/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. | 50 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Lake Rototuna
Answers come straight from the public measurements and survey records on this page.
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Fishing Lake Rototuna
Frequently asked questions about Lake Rototuna
Where is Lake Rototuna?
- Lake Rototuna is a lake in North Island, New Zealand. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lake Rototuna?
- Lake Rototuna in North Island, New Zealand has official water-quality measurements, shown as reported. 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 shown as the authority published them. See where the data comes from and data sources.