Leak Detection Services in California

Water Pipe Leak Detection
Our water loss specialists have the equipment and expertise to locate your leak and provide insights into your water distribution system. GPRS utilizes a variety of industry-leading equipment and methods, including acoustic leak detectors, leak noise correlators, video pipe inspection, ground penetrating radar, and electromagnetic locating.
Wastewater Treatment
Excavating, drilling, or saw cutting near wastewater treatment facilities can be challenging due to the presence of critical utilities and underground assets that must be protected during construction. GPRS' SIM-certified Project Managers offer solutions such as Utility Locating, Video Pipe Inspection, and Leak Detection to prevent damage and ensure safety.
Water Distribution & Collection
Water and sewer pipelines often span long distances, encountering numerous utility crossings. When installing new water and sewer pipes, it's essential to locate underground utilities. GPRS is more than just a leak detection company; we can also perform utility locating before excavation for repairs or replacements of existing water or sewer lines.
///LEAK APPLICATIONS
Active Leak Detection
Your Project Manager will mark findings directly on the surface with flags and paint, giving you and your team clear guidance on where it is and isn’t safe to dig. GPRS also utilizes a global positioning system (GPS) to capture data points, which are then used to create the maps and models you need to Intelligently Visualize The Built World®.
Routine Water Loss Surveys
By the time a leak is visible, your infrastructure is already at risk — along with thousands of dollars in potential repairs and non-revenue water loss (NRW). Partnering with a professional water leak detection company like GPRS for routine water loss surveys helps identify leaks early, before they escalate into costly emergencies.
Assesses pressurized subsurface water systems
Pinpoints and marks out any leaks detected
Allows for planning, targeted repair, and maintenance with minimal excavation
Fire Suppression System Checks
In addition to regular checks of your sprinkler system, vane (flow) switches, pressure switches, and fire pumps, your facility should also undergo an annual water flow test. This is critical for maintaining safety and ensuring compliance. Undetected system leaks can result in the loss of thousands of gallons of water, leading to significant budget overruns. GPRS can locate leaks in any pressurized water line to help ensure your system performs effectively when it matters most.
Valve Exercising
When water system valves stiffen, flow and pressure can be compromised due to corrosion, rust, and mineral buildup. Valves left static for too long may become inoperable or fail to fully close. Regular valve exercising helps prevent stiffening and the problems it can create.
GPRS offers valve exercising services to help maintain the integrity of your entire pressurized water system.
GPRS offers valve exercising services to help maintain the integrity of your entire pressurized water system.
///PUT YOUR PROJECT ON THE MAP

Finding the leak is step one…
GPRS leak detection Project Managers are the best in the business because they can pinpoint a pressurized water line leak, so you know exactly where to dig to fix it.
Step two is fixing it safely. That’s when you need “The GPRS Difference”
Because they’re trained in Subsurface Investigation Methodology (SIM), your GPRS Project Manager can do more than find a leak – making us more than just another leak detection company. Our Project Managers are elite consultants – expert in deploying multiple technologies to provide you with comprehensive, 99.8%+ accurate subsurface utility data – because they know how to find every buried utility line surrounding your water line to make sure when you dig, you dig safely.
GPRS leak detection Project Managers are the best in the business because they can pinpoint a pressurized water line leak, so you know exactly where to dig to fix it.
Step two is fixing it safely. That’s when you need “The GPRS Difference”
Because they’re trained in Subsurface Investigation Methodology (SIM), your GPRS Project Manager can do more than find a leak – making us more than just another leak detection company. Our Project Managers are elite consultants – expert in deploying multiple technologies to provide you with comprehensive, 99.8%+ accurate subsurface utility data – because they know how to find every buried utility line surrounding your water line to make sure when you dig, you dig safely.
Your Project Manager can accurately map any pressurized water system, fire loop, or sanitary and storm sewer systems, and other utilities if needed, and provide you with complimentary CAD drawings or a .KMZ file, delivered via SiteMap®. Every GPRS customer receives a complimentary SiteMap® subscription as part of their package.

FACILITY MANAGERS
Avoid utility strikes, service interruptions, and shutdowns
Capture and control existing subsurface utility conditions for planning & maintenance
Integrate above & below-ground infrastructure conditions and even planned renovations in a 3D BIM model with a complete site scan
All documentation delivered via SiteMap® and available 24/7
GENERAL CONTRACTORS
Accurate private & public utility location to help you dig safely
Capture and control existing condition documentation for planning & workflow
Layered digital subsurface utility maps available 24/7 via SiteMap® to streamline communication & collaboration
Subsurface 3D capture and modeling available for planning & design purposes
Municipalities
Document all existing subsurface utilities, including abandoned lines and other underground features
Video Pipe Inspection added to utility location provides comprehensive subsurface mapping that documents cross bores and defects in sanitary & storm sewers
Plan maintenance, repair, and new utility installations without the risk of striking existing utilities
All subsurface utility locates, VPI reports, maps and models are delivered and housed in SiteMap® for your 24/7 remote or on-site use
///EQUIPMENT & TOOLS
Every GPRS Project Manager is an expert in applying multiple technologies to your site to achieve a comprehensive and 99.8%+ accurate utility locate. Because avoiding a utility strike and keeping your people safe isn’t just about what equipment we use, it’s about the knowledge and experience of the people using it.

Acoustic Leak Detection
GPRS Project Managers are experts in acoustic leak detection for pressurized water lines. They use specialized microphones, headphones, and control units, and complementary technologies to pinpoint water leaks by listening to amplified sound waves in a wide variety of pipe materials.

Ground Penetrating Radar
The tool our company was founded on, GPR, in concert with other complementary technologies, is used to identify buried objects and underground utilities. Our Project Managers provide 99.8% accurate field-verified utility maps, delivered via SiteMap®, PDF & .KMZ files to all GPRS customers.

Leak Detection Correlators
These algorithm-powered tools utilize radio waves via a dual sensor system to process and digitally display leak vibrations that correlate to potential pressurized water system leaks. It is used in conjunction with acoustic devices to provide pinpoint leak detection in water and fire suppression infrastructure.

EM Locating
Electromagnetic (EM) locators are preferred by One Call contractors to locate public utility lines. GPRS utilizes them with GPR and other technologies as part of our Subsurface Investigation Methodology process to detect live AC power or radio signals along conductive utilities.
///ROUTINE WATER LOSS SURVEYS
Recommended for all water systems
Leak detection Project Manager utilizes acoustic leak detection and leak noise correlators to evaluate areas of concern
Find leaks even when no water has surfaced
Your underground water infrastructure is a complex maze – constructed over decades or centuries with pipes of various materials – layered and ever-changing. Forgotten or abandoned pipes, unexpected lead service lines, and defects large and small cannot be seen (or heard) without the proper tools and training. That’s why GPRS highly recommends routine Water Loss Surveys to update your existing condition documentation, find new defects and leaks to better maintain your system, protect your water, and your community.
///Industry insights
Sources: infrastructurereportcard.org, U.S EPA
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///WHAT IS NON-REVENUE Water
Non-Revenue Water (NRW) is the water lost in a distribution system before reaching the end user/customer.
The American Water Works Association (AWWA) shifted terminology from “unaccounted-for water” to non-revenue water (NRW) because water loss is always accounted for; the difference is whether the water was consumed for benefit/profit or lost to waste.
At least two trillion gallons of water – enough to fill up 3.28 million Olympic-sized swimming pools – is lost from underground water pipes every year.
The American Society of Civil Engineers (ASCE) estimates more than $2 billion is lost annually to aging and defective U.S. plumbing and water treatment infrastructure.