Percentile of the waste which includes both organic rejects and other compostable material which are deemed unsuitable for regular recycling, and disposed off by onsite composting – measured by weight at the end of the day against the total waste stream handled.
- Acceptable average – <15%
Averages
Intervening Variables
- Percentage of Segregation and Moisture as they can dampen or soil certain recyclables such as paper & cardboard consigning them to the compostable stream.
- The organic residue in improperly segregated waste streams adds up to the percentile.
Confounding Variables
- Power outages and machinery breakdowns interfere with end weighment procedures and show false results
- A single special stream, depending on its nature can cause apparent increases in percentiles.
- Special activities such as clearing of backlogs can interfere with observations.
- Designation of Recyclables.
Monthly Trend Since 2023
Recent 6-Month Trend
Recent 31-Day Trend
OBSERVATIONS
Yearly Trends
- Sustained decline in percentage of compostables seen since 2024 due to improvement in segregation at source as seen in KPI-3.
- The high percentile seen in Oct-Dec 2023 can as well be attributed to the higher moisture content which renders more paper unsuitable for recycling and fit only for composting.
Six Month Trend
- The significant peak for Apr & May 2025 was chiefly due to reclassification of paper deemed unfit for recycling from incinerable to compostable. The move was done to ease the strain on the burners which had to tackle higher loads generated by the tourist season. (See KPI-10)
31-Day Trend
- Trend has stabilised at 18%, prediction not possibles due to vagaries of the weather.
Further improvement aimed at by finding markets which take in soiled and/or moist paper in addition to the usual measures planned such as additional automation, re-training, and intensified supervision – also a further increase in the degree of segregation at source
31-Day Timeline of Variables
