Rivers, tap water, beaches, groundwater, and wastewater
Thailand water quality needs river, tap, groundwater, beach, marine, wastewater, industrial, and standards layers kept separate.
Thailand water-quality intelligence only works when river, canal, tap, groundwater, beach, marine, wastewater, industrial, and standards layers stay separate. Use the Pollution Control Department for national surface-water quality, automatic stations, marine water quality, and wastewater context; Thaiwater for multi-agency near-live station observations; MWA and PWA for tap-water and raw-water monitoring; the Department of Groundwater Resources for wells and groundwater context; Bangkok open data for canal and Chao Phraya urban monitoring; DMCR, GISTDA, and Copernicus for coastal and ocean-condition context; DIW and PCD for industrial-effluent boundaries; MRC for Mekong and transboundary monitoring; and Department of Health plus FDA standards for potable and bottled-water thresholds.
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Water next-step check
The page below is still useful without JavaScript. When current checks are available, this panel points you to the Today, comparison, and route pages that matter before committing.
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Use this order when river stations, tap-water dashboards, coastal proxies, standards, and industrial monitoring all appear to be talking about the same place.
Rank
Source layer
1
PCD, Thaiwater, MWA, PWA, DGR, and BMA for official Thai surface-water, tap-water, groundwater, and urban-water monitoring truth.
2
DMCR, GISTDA, Copernicus Marine, and other marine or satellite products for coastal-condition, bloom, sediment, and proxy context that supports but does not replace field sampling.
3
PCD wastewater and DIW monitoring surfaces for wastewater-treatment and industrial-effluent context, with explicit limits on public facility-level visibility.
4
MRC for transboundary Mekong and regional water-quality context when basin-scale metals, nutrients, or solids matter more than one local station.
5
Department of Health and FDA standards for interpreting potable-water and bottled-water limits without pretending standards pages are live monitoring feeds.
Matching rules
These rules keep WQI, tap water, raw water, beaches, groundwater, wastewater, industrial effluent, and satellite proxies from collapsing into one misleading record.
Rule
Meaning
1
WQI and MWQI are not the same thing as live water-safety today; they summarize field or sampling cycles and must be kept separate from automatic-station telemetry.
2
Tap water, raw-water intake, river water, canal water, groundwater, marine water, wastewater, and industrial effluent are different products with different standards and use cases.
3
Satellite chlorophyll, turbidity, or suspended-matter products are proxies, not microbiological swim-safety proof.
4
Groundwater-well records and historical lab results do not prove present untreated drinking suitability at the tap.
5
Industrial and wastewater monitoring systems exist, but public facility-level realtime access is usually partial or restricted.
6
The same station or waterbody can appear under different agency names, codes, languages, and coordinate precision.
7
Heavy-metal incidents are often event-driven and sampling-based, not stable realtime API fields.
Data layers
Each layer answers a different question. A river WQI trend is not a live safe-today feed, a raw-water salinity alert is not a finished tap-water failure, a marine satellite proxy is not a bacteria test, and a standards page is not an observation feed.
Use the Pollution Control Department for national surface-water quality, automatic stations, marine water quality, and wastewater context; Thaiwater for multi-agency near-live station observations; MWA and PWA for tap-water and raw-water monitoring; the Department of Groundwater Resources for wells and groundwater context; Bangkok open data for canal and Chao Phraya urban monitoring; DMCR, GISTDA, and Copernicus for coastal and ocean-condition context; DIW and PCD for industrial-effluent boundaries; MRC for Mekong and transboundary monitoring; and Department of Health plus FDA standards for potable and bottled-water thresholds.