13.-0130. Bar rack.

13.- WASH Glossary.
13.-0129. Bank filtration.
13.-0128. Bacteriological analysis.
13.-0127. Bacteria.
13.-0126. Backwashing.
13.-0125. Backwash.
13.-0124. Background.
13.-0123. Backflush valve.
13.-0122. Backfilling.
13.-0121. Backfill.
13.-0120. Axial flow pump.
13.-0119. Awareness raising.
13.-0118. Awareness raising for demand creation.
13.-0117. Available chlorine.
13.-0116. Automatic surge flow and gravitational tank irrigation system.
13.-0115. Automated irrigation.
13.-0114. Attenuation.
13.-0113. Atmosphere.
13.-0112. Assisted sedimentation.
13.-0111. Assisted sedimentation with filtration.
13.-0110. Ash from sludge.
13.-0109. Artificial recharge.
13.-0108. Artificial groundwater recharge..
13.-0107. Artificial fertiliser.
13.-0106. Arthropod.
13.-0105. Artesian.
13.-0104. Artesian water.
13.-0103. Artesian spring.
13.-0102. Arsenite.
13.-0101. Arsenic removal technologies.