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Advanced Leak Detection Program: Finding Leaks and Saving Water

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a San Jose Water employee in a work truck using computer software in detecting leaks
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stat depicting SJW has an average annual water loss rate of only 7% while average in US is 16%

Testimonial

"SJW were super duper! They were kind, patient, helpful, knowledgeable and amazing!! ⭐⭐⭐⭐ Highly Recommend!"

“Absolutely wonderful. Explained everything to me in detail. After leak was found, followed up with complete details so I could get it fixed. I think this is a fantastic service. Not only did it find a major leak on my property, it saved me money and saved a lot of wasted water. The Field staff were so professional and incredibly courteous.”

- San Jose Water Customers
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San Jose Water employees working on a fire hydrant
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Preventing water loss from our underground pipelines helps San Jose Water protect water resources and promote sustainability in our community.

We currently deploy the Echologics Echoshore-DX cellular fixed leak monitoring system, which uses acoustic technology to locate leaks throughout the system. By placing sensors on fire hydrants, the sounds generated by leaks on pipes up to 12 inches in diameter can be detected and analyzed. Other technologies are used to support our technicians as they pinpoint the location of leaks in the field.

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Acoustic Leak Detection 

fire hydrant

Acoustic leak detection sensors are placed on special fire hydrant caps. These sensors monitor sounds within our water system and identify acoustic anomalies, which indicate leaks. When acoustic anomalies are found, geographic information is automatically sent to our staff for further investigation. During further investigation, our staff more precisely locates leaks, usually with the leak correlator or ground microphone.

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