Related by context. Frequent words. (Click for all words.) 58 sinks toilets 57 Potable water 56 artesian wells 56 permeable pavers 56 soil conditioners 56 recharge groundwater 55 gallon cistern 55 irrigating crops 54 subsurface drainage 54 Septic tanks 53 water 53 shelterbelts 53 brackish groundwater 53 wetland vegetation 53 drought tolerant landscaping 53 evaporation ponds 53 Grass clippings 53 sump pit 53 vermi compost 53 bioretention 52 wastewater effluent 52 ornamental ponds 52 Rinse thoroughly 52 coconut husks 52 irrigational 52 composting toilets 51 Disused 51 furnaces boilers 51 rainwater catchment 51 Latrines 51 clogged gutters 51 stormwater ponds 51 revegetated 51 drank rainwater 51 riparian forest 51 desalinating 51 mosquito nets blankets 51 Raised beds 51 fish attractors 51 bridges culverts 51 stormwater retention 51 coir fiber 51 Potted plants 51 bleaching powder 50 pervious pavement 50 silt fencing 50 potable water 50 bentonite clay 50 roadbeds 50 paints adhesives 50 freshwater springs 50 sumps 50 riversides 50 nonpotable water 50 Culverts 50 flow plumbing fixtures 50 retention basins 50 impermeable surfaces 50 harvesting rainwater 50 terracotta tiles 50 settling ponds 50 chlorine disinfection 50 Vegetable gardens 50 ultraviolet disinfection 50 irrigations 50 ponds 50 collects rainwater 50 Leachate 50 Boreholes 50 reed bed 49 Topsoil 49 permeable paving 49 landfill leachate 49 decorative fountains 49 reverse osmosis desalination 49 chlorine tablets 49 waste receptacles 49 Drip irrigation 49 coconut husk 49 xeric 49 Irrigating 49 liquid fertilizers 49 padi fields 49 compacted clay 49 organic mulches 49 desalinization plants 49 streambanks 49 driveways sidewalks 49 Picnic tables 49 deionized water 49 blankets mosquito nets 49 hydrated lime 49 groundwater aquifers 49 Vast stretches 49 plastic wading pools 49 Drought tolerant 49 landscaped courtyards 49 leachate collection 49 Disinfecting 48 dewatering pumps 48 rainwater