Tseng-Wen Reservoir
Chiayi, TaiwanView mapDirections
MOENV publishes the water-quality measurements for Tseng-Wen Reservoir. Here is what has been measured.
- Limited data
Tseng-Wen Reservoir in Chiayi, Taiwan has official water-quality measurements, shown as reported. Water clarity: 1.6 m visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 3.6 µg/L.
How Tseng-Wen Reservoir is classified
Tseng-Wen 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).
Tseng-Wen Reservoir is a lake in Chiayi 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 Tseng-Wen 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 Tseng-Wen Reservoir
These are the measurements MOENV publishes for Tseng-Wen Reservoir. More on the source.
Murky, only visible to about 5.2 ft. Phosphorus 13 µg/L. Chlorophyll-a 3.6 µg/L. TSI 46.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.6m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 13µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 3.6µg/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. | 46 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Tseng-Wen Reservoir
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Tseng-Wen Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Tseng-Wen Reservoir in Chiayi, Taiwan — 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 Tseng-Wen Reservoir
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 Tseng-Wen Reservoir’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Tseng-Wen Reservoir
Frequently asked questions about Tseng-Wen Reservoir
Where is Tseng-Wen Reservoir?
- Tseng-Wen Reservoir is a lake in Chiayi, Taiwan. This page reports official water-quality measurements, shown as reported.
What is the water quality of Tseng-Wen Reservoir?
- Tseng-Wen Reservoir in Chiayi, Taiwan has official water-quality measurements, shown as reported. Water clarity: 1.6 m visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 3.6 µg/L.
Is Tseng-Wen Reservoir safe to swim in?
- Tseng-Wen 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.
Explore Tseng-Wen Reservoir across LakeQuality
More lakes in Taiwan
Where this data comes from
78 measurements from 6 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-tw78 samples · 2020
Monitoring station identifiers (6)
216821672166216521642163
Authority classifications are shown as the authority published them. See where the data comes from and data sources.