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Contact Information:


James City Service

Authority (JCSA)

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119 Tewning Rd.

Williamsburg, VA 23188




Hours of Operation

Engineering & Operations
7 a.m.-3:30 p.m.

8 a.m.-4:30 p.m.


P: 757-253-6800
F: 757-259-4115

For questions about:


Starting or Stopping Service


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P: 757-229-7421
F: 757-229-2463

7 a.m. to 3:30 p.m.


Water / Sewer Emergencies


P: 757-229-7421
7 a.m. to 3:30 p.m

After Hours

Special Information Hotline


Miss Utility

Dial 811 in Virginia or

Online Applications


Backflow Prevention & Cross Connection Control Program


Program Summary

The James City Service Authority (JCSA) administers a program of surveying, inspecting, and testing of all backflow prevention devices and assemblies within the JCSA water distribution systems. This Backflow Prevention and Cross Connection Control Program is ongoing in nature and was devised and implemented with security of the potable water supply and the health of our citizens in mind. Accordingly, this program was created and is administered by the JCSA in conjunction with the Virginia State Department of Health and the Environmental Protection Agency. This program and its terms andwater faucet conditions are in place to illustrate the requirements for installation of approved backflow devices or assemblies and the related responsibilities for regular maintenance, inspection and testing. A vital part of this program is the annual inspection and testing of all backflow assemblies by a Virginia State certified tester with test results being forwarded to the JCSA Special Projects Coordinator. The authority for this program comes directly from the JCSA Board of Directors and its Regulations Governing Utility Service, Section 30, Backflow and Cross Connection Control. Since the JCSA follows a containment policy, all backflow devices are located on the private side of the community potable water system. The property owner is responsible for the maintenance, inspection, and testing of the assemblies and/or devices, and to ensure compliance with the JCSA Backflow Prevention and Cross Connection Control Program requirements. It is essential to the betterment of our overall community health that as a community we remain vigilant to possible backflow events and maintain all cross connection control devices.

If your irrigation system has no backflow prevention assembly or if your backflow assembly is not working properly, you could potentially be putting yourself and your family at risk. How Clean Is Your Drinking Water? (Courtesy of WLTX, Columbia, South Carolina)

Sprinkler system backflow suspected in E-coli contamination (Courtesy of, Corpus Christi, Texas) 

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