Ching-Mien Reservoir
Tainan, TaiwanView mapDirections
MOENV publishes the water-quality measurements for Ching-Mien Reservoir. Here is what has been measured.
- Limited data
Ching-Mien Reservoir in Tainan, Taiwan has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 36 µg/L.
How Ching-Mien Reservoir is classified
Ching-Mien Reservoir in Taiwan 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, phosphorus and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Ministry of Environment (Taiwan).
Ching-Mien Reservoir is a lake in Tainan County, Taiwan.
Source: the Ministry of Environment (Taiwan) — not the EPA Water Quality Portal, last sampled 2020-07-07. 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 Ching-Mien Reservoir is safe to swim in today is a call for the Ministry of Environment (Taiwan) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Ching-Mien Reservoir
These are the measurements MOENV publishes for Ching-Mien Reservoir. More on the source.
Very murky, less than 1.3 ft of visibility. Phosphorus 30 µg/L. Chlorophyll-a 36 µg/L. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.4m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 30µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 36µg/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. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Frequently asked questions about Ching-Mien Reservoir
Where is Ching-Mien Reservoir?
- Ching-Mien Reservoir is a lake in Tainan, Taiwan. This page reports official water-quality measurements, shown as reported.
What is the water quality of Ching-Mien Reservoir?
- Ching-Mien Reservoir in Tainan, Taiwan has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 36 µg/L.
Is Ching-Mien Reservoir safe to swim in?
- Ching-Mien Reservoir 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
30 measurements from 2 monitoring stations, 2020. Retrieved from Taiwan MOENV (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Ministry of Environment (Taiwan)
moenv-tw30 samples · 2020
Monitoring station identifiers (2)
21772176
Authority classifications are shown as the authority published them. See where the data comes from and data sources.