13.-0820. Industrial wastewater.

13.- WASH Glossary.
13.-0819. Industrial symbiosis.
13.-0818. Industrial input.
13.-0817. Industrial effluent.
13.-0816. Industrial ecology.
13.-0815. Indicator.
13.-0814. Indicator organism.
13.-0813. Indicator bacteria - ( faecal ).
13.-0812. Incinerator.
13.-0811. Incineration.
13.-0810. In-situ target population.
13.-0809. In-situ rainwater harvesting.
13.-0808. Impulse pump.
13.-0807. Improved trench latrines.
13.-0806. Improved supply.
13.-0805. Improved sanitation.
13.-0804. Improved sanitation facility.
13.-0803. Improved drinking water sources.
13.-0802. Improved - protected well.
13.-0801. Implementing partners.
13.-0800. Implementation support tools.
13.-0799. Impervious.
13.-0798. Impermeable, impervious.
13.-0797. Impermeable layer.
13.-0796. Impeller.
13.-0795. Impeller trim.
13.-0794. Impact investor.
13.-0793. Immediate emergency phase.
13.-0792. Imhoff tank.
13.-0791. Igneous.