# Water efficiency { "id": "S2001008829", "title": "Water efficiency", "url": "/topics/S2001008829", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "9f6971e31eb0cd53", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "9839248384354034242", "address_version": "morton4x16-v1", "coordinates": [ 0, 477, 5090, 62464 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on the relationship between the amount of water required for a particular purpose and the quantity of water used or delivered, including measures taken to achieve more efficient water use and reduced demand. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2001008829 No owner-reviewed local answer yet.