https://pacific-data.sprep.org/system/files/SOEC-Indicator-5.pdf

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State of the Environment and Conservation in the Pacific Islands: 2020 Regional Report: Indicator 5 - Freshwater Quality

There are active drinking water or freshwater monitoring progra mmes in 11 of 14 Pacific countries and 6 of 7 territories. The primary challenge is the regularity and frequency of sampling, the capacity to process samples accurately in country, and the official response process to the findings. There is no regional data collation for this proposed indicator , to date. Escherichia coli occurs naturally in human and animal intestines and therefore can be used as a proxy for untreated sewage contamination or other pollution.