Result of drinking water quality - IAM Laboratory Information

Macao
Islands District

Ilha Verde treated water
22.211228, 113.540172
file?p=lab/generalimage/636662069398019.jpg
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>28/03/2023</th><th>27/03/2023</th><th>26/03/2023</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>0.85</td><td>0.84</td><td>0.83</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>7.6</td><td>7.7</td><td>7.8</td><td>6.5-9.5</td></tr><tr><td>Chloride(mg/L)</td><td>34.4</td><td>36.3</td><td></td><td>250*</td></tr><tr><td>Total coliform(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td></td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
水廠
22.198057429, 113.54611755
MSR I treated water
22.203890, 113.557713
file?p=lab/generalimage/637514961350971.jpg
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>28/03/2023</th><th>27/03/2023</th><th>26/03/2023</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>0.86</td><td>0.80</td><td>0.91</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>7.6</td><td>7.4</td><td>7.9</td><td>6.5-9.5</td></tr><tr><td>Chloride(mg/L)</td><td>35.5</td><td>37.5</td><td></td><td>250*</td></tr><tr><td>Total coliform(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td></td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
水廠
22.198057429, 113.54611755
UF MSR treated water
22.204322, 113.558938
file?p=lab/generalimage/636662070371518.jpg
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>28/03/2023</th><th>27/03/2023</th><th>26/03/2023</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>0.77</td><td>0.76</td><td>0.84</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>7.8</td><td>7.8</td><td>8.0</td><td>6.5-9.5</td></tr><tr><td>Chloride(mg/L)</td><td>36.1</td><td>37.9</td><td></td><td>250*</td></tr><tr><td>Total coliform(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td></td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
水廠
22.198057429, 113.54611755
Wallace Fountain at Jardim de S. Franciso
22.192605, 113.543825
file?p=lab/generalimage/636662091021289.jpg
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>24/03/2023</th><th>22/03/2023</th><th>19/03/2023</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>0.51</td><td>0.84</td><td>0.58</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>7.7</td><td>7.6</td><td>7.4</td><td>6.5-9.5</td></tr><tr><td>Total coliform(/100mL)</td><td>Not detected</td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td>Not detected</td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td></td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
和麗女神噴泉
22.198057429, 113.54611755

Coloane treated water
22.129345, 113.571218
file?p=lab/generalimage/636662070926709.JPG
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>06/12/2022</th><th>05/12/2022</th><th>04/12/2022</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>---</td><td>1.1</td><td>0.83</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>---</td><td>7.8</td><td>8.0</td><td>6.5-9.5</td></tr><tr><td>Chloride(mg/L)</td><td>---</td><td></td><td></td><td>250*</td></tr><tr><td>Total coliform(/100mL)</td><td>---</td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td>---</td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td>During maintenance</td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
水廠
22.139410, 113.563297
SEAC PAI VAN Water Treatment Plant Treated Water
22.13248, 113.56656
file?p=lab/generalimage/637514954241420.jpg
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>28/03/2023</th><th>27/03/2023</th><th>26/03/2023</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>0.92</td><td>0.85</td><td>1.0</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>7.9</td><td>7.5</td><td>8.0</td><td>6.5-9.5</td></tr><tr><td>Chloride(mg/L)</td><td>28.4</td><td>33.8</td><td></td><td>250*</td></tr><tr><td>Total coliform(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td></td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td></td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
水廠
22.139410, 113.563297
Wallace Fountain at Largo Governador Tamagnini Barbosa in Taipa
22.152269,113.555120
file?p=lab/generalimage/636662091707423.jpg
<table class="table table-striped table-sm"><thead><tr><th>Latest 3 test dates</th><th>25/03/2023</th><th>24/03/2023</th><th>22/03/2023</th><th>Limit</th></tr></thead><tbody><tr><td>Free chlorine(mg/L)</td><td>0.62</td><td>0.66</td><td>0.51</td><td>-</td></tr><tr><td>pH Value(pH)</td><td>8.0</td><td>8.0</td><td>7.7</td><td>6.5-9.5</td></tr><tr><td>Total coliform(/100mL)</td><td>Not detected</td><td>Not detected</td><td>Not detected</td><td><1</td><tr><td>Escherichia coli(/100mL)</td><td>Not detected</td><td>Not detected</td><td>Not detected</td><td><1</td></tr><tr><td>Remarks</td><td></td><td></td><td></td><td></td></tr></tbody></table></br></br></br></br></br>
和麗女神噴泉
22.139410, 113.563297

Remarks : Limit according to "Regulations on Water Supply and Drainage in Macao”.
Limits on E. coli* and chloride in reference to Directive (EU) 2020/2184

Previous water quality monitoring data is available in DSEC “Environmental Statistics”