: Lead and Copper Rule Revisions Service Line Inventory :
Please visit our Lead Service Line Inventory Page to determine if your water service is listed as category ‘Lead Status Unknown’ and if so, read the notification letter on what steps to follow. Click 
Our Department
The GIS Division develops and maintains the geospatial database to support utility design, construction and maintenance efforts as well as provide maps to assist all stakeholders with their service and development fees.
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Main Office No: (956) 721-2000
Fax No: (956) 721-2001