Welcome to North Alamo Water Supply Corporation
The North Alamo Water Supply Corporation (NAWSC) provides water utility service and wastewater utility service for rural residents of eastern Hidalgo County, Willacy County and northwestern Cameron County. NAWSC presently serves about 37,000 meter connections, which include households, numerous businesses, 27 schools, and 14 other Public Water Systems, from six surface water treatment plants and four reverse osmosis treatment plants. The corporation also serves approximately 2809 Wastewater connections, which include households, numerous businesses, six schools, from 4 Wastewater Treatment Plants and 6 sewer collection systems. NAWSC is currently in the construction phase of a Reverse Osmosis water treatment Plant for the North Donna Area and expect to advertise for bid for a new Water treatment Plant in the Delta Area to help meet our potable water demands.

Requesting Water Services
Applications are taken from Monday through Friday from 8:30 am to 4 pm. Please have the application...
Lawn Watering Schedule
between 6-10 AM & 6-10 PM
Routes 11-19 – Mondays & Thursdays
Routes 20-29 – Tuesdays & Fridays
Routes 30-43 – Wednesdays & Saturdays
(Route is determined by the first 2 digits of customer’s account number. For example, account #17-0100 is in Route 17.)
See Recent News below to read about water usage restrictions.
Consumer Confidence Report
Our Drinking Water Meets or Exceeds all Federal (EPA) Drinking Water Requirements.


