Example sentences of "[adj] than [noun sg] water " in BNC.

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1 And there is no way of checking that bottled water is any cleaner than tap water .
2 Soakaways to the roads and houses of a development will usually be cheaper than surface water sewers .
3 A year long investigation by a US Congress subcommittee , prompted by last year 's Perrier scare , has claimed that some bottled waters may be less safe than tap water .
4 Bore-hole water is usually more uniform than surface water , particularly when there is no intrusion from different strata .
5 If I wanted to be happy I should have avoided the pub altogether , or at least had nothing stronger than mineral water .
6 So river water is greater than sea water , proportionately , for those elements .
7 Looking in ballpark figures , river water is about three hundred times more dilute than sea water .
8 For drinking purposes , he concluded that well-water , with possibilities of immediate pollution , was less desirable than river water , with its natural processes for purification .
9 Anchor ice accumulations , being less dense than sea water , break away from time to time and rise to the surface , carrying with them entrapped and frozen plants and animals , which gather in layers under the inshore floes .
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