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Environment

Drinking water quality datasets

Data from Jan 2023 to Dec 2025

Last updated: 18 Jun 2026, 08:12 SGT

PUB (PUB, Singapore's national water agency)

Data explorer

Drinkingwaterqualitydatasets.csv (384 rows, 16.5 KB)

Year Year (YYYY)	Parameter Text	Units Text	Average Text	Range Text
(Null)0.0% 202333.3% 202433.3% 202533.3%	(Null)0.0%	(Null)0.0% æg/L68.0% mg/L22.7% Bq/L2.3% units1.6%	(Null)0.0%	(Null)0.0%
2023	Escherichia coli (E. coli)	cfu/100mL	<1	<1
2023	Colour	Hazen	<5	<5
2023	Conductivity	æS/cm	222	95 - 587
2023	Odour	TON	Unobjectionable	Unobjectionable
2023	pH Value	Units	8.2	7.8 - 8.8
2023	Total Dissolved Solids	mg/L	110	72 - 354
2023	Turbidity	NTU	0.14	0.05 - 0.45
2023	Gross Alpha	Bq/L	<0.05	<0.05 - 0.104
2023	Gross Beta	Bq/L	0.08	<0.05 - 0.181
2023	Radon-222	Bq/L	<0.60	<0.60 - 0.79

Column legend

Title	Column name	Data type	Unit of measure	Description
Year	Year	Year (YYYY)	-	-
Parameter	Parameter	Text	-	-
Units	Units	Text	-	-
Average	Average	Text	-	-
Range	Range	Text	-	-

Analyse this dataset with Colab Notebook

1. Copy this dataset ID: d_f397c39929978d3047e0e32430c6763b
2. Click on the button below

Sample OpenAPI query

This code can be used to test a sample API query. It retrieves the data catalogue of this dataset. For a complete guide on query parameters and syntax, please refer to the API documentation. Try it out on your browser to see the response schema.

import requests
          
dataset_id = "d_f397c39929978d3047e0e32430c6763b"
url = "https://data.gov.sg/api/action/datastore_search?resource_id="  + dataset_id 
        
response = requests.get(url)
print(response.json())

Citation

This dataset can be reused and cited in research publications.

PUB, Singapore's national water agency. (2017). Drinking water quality datasets (2026) [Dataset]. data.gov.sg. Retrieved June 20, 2026 from https://data.gov.sg/datasets/d_f397c39929978d3047e0e32430c6763b/view

About this dataset

Contact

emily_lau@pub.gov.sg

Created on

25 May 2017

Licence

Free forever for personal or commercial use, under the Open Data Licence.

Agency

PUB (PUB, Singapore's national water agency)