**👁️‍🗨️  Source : Emergency WASH Knowledge Portal : **www.washnet.de

👉🏼 **https://www.emergency-wash.org**

https://www.emergency-wash.org

    **# <u>Table of contents</u>.**

9.1.≈S1≈ Rainwater.

9.2.≈S2≈ Rivers and streams.

9.3.≈S3≈ Ponds, lakes and reservoirs.

9.4.≈S4≈ Brackish water, seawater.

9.5.≈S5≈ Groundwater.

9.6.≈S6≈ Springwater.

9.7.≈S7≈ Gravity.

9.8.≈S8≈ Human-powered energy system.

9.9.≈S9≈ Wind-powered energy system.

9.10.≈S10≈ Solar-powered energy system.

9.11.≈S11≈ Electric-powered energy system.

9.12.≈S12≈ Diesel- and Gasoline-powered energy system.

9.13.≈I1≈ Rainwater harvesting : Raised surface collection.

9.14.≈I2≈ Rainwater harvesting : Ground surface collection.

9.15.≈I3≈ River and lake water intake.