00502    a2200169   4500020001500000082001600015100002100031245003900052250001300091260005600104300002100160650003300181650003900214650004200253650001700295700002000312  a0321055845  a363.61bVIE  aViessman, Warren  aWater supply and pollution control  a6th ed.   aCaliforniabAddison-Wesley Longman Inc.c1998g1998  axiv, 827p.c24cm  aSocial problems and services  aOther social problems and services  aPublic utilities and related services  aWater supply  aHammer, Mark J.