Show/Hide
Cary Town Hall and most staffed facilities will be closed Thursday and Friday, Nov. 22 and 23, in observance of Thanksgiving. Garbage/recycling and other services will be modified as well. Learn more.

Water Supply and Demand

Print
Press Enter to show all options, press Tab go to next option
RSS

Cary's main water supply is B. Everett Jordan Lake. Part of the lake's storage capacity is designated for water supply, and the State of North Carolina's Division of Water Resources, NCDEQ, allocates that water supply storage based on applications by water suppliers. As of March 2017, our allocations are:

  • Cary/Apex and RTP South: 46.2 percent of water supply storage, or 46.2 million gallons per day (MGD) average annual supply
  • Morrisville: 3.5 percent of water supply storage, or 3.5 MGD average annual supply
Other allocation holders include Chatham County, Durham and Orange Water and Sewer Authority.

The Cary/Apex Water Treatment Facility (C/A WTF) treats water from Jordan Lake for Cary, Apex, Morrisville, and RTP South. The C/A WTF also treats water for Durham on occasion for emergency needs. The facility has a maximum daily capacity of 56 MGD. 

Cary and Morrisville also have mutual support agreements with Durham to purchase water through our water system interconnections, if needed.

Rainfall data is from the Raleigh-Durham Airport vicinity and does not reflect local isolated showers. "T" stands for trace and is not measurable. 

Current Year: 2018

This page is updated weekly with the prior week's demand.

Previous year: 2017