20240808 06004400 1.0 TRUE Water Purveyor Service Area Water Purveyor Service Area boundaries which also contain the contact information of the water companies. Los Angeles County Department of Public Works Survey/Mapping and Property Management Division Francis Calasanz (626) 458-3542 Waterworks Division Michael Roach (626) 300-3343 Data Updated by Htoon Chao/Viki Yip NOTE: Los Angeles County Department of Public Works Waterworks Division only maintains areas that are covered by waterworks districts.