LARGE-SYSTEM WATER SURVEYS & COMPLEX LEAK INVESTIGATIONS

Municipal & Large-System Leak Detection

Coordinated water-system surveys for municipalities, water districts, campuses, HOAs, manufactured-home communities and private distribution networks.

Subsurface Leak Detection combines deployment-scale acoustic surveying with focused locating and diagnostic methods to narrow water loss, guide targeted repair and reduce unnecessary excavation.

Built for systems—not isolated service calls

Whole-system thinking

Survey design begins with how the network operates.

Field-scale deployment

Methods are sequenced across large service areas.

Repair-focused evidence

Findings are organized for practical next decisions.

Colorado + nationwide

Regional municipal work and multi-state private programs.

WHY SCALE CHANGES THE INVESTIGATION

Large water systems require a coordinated survey—not a larger version of a residential appointment.

Municipal and private distribution networks may include miles of buried piping, multiple pressure zones, limited isolation points, mixed materials, aging components and incomplete or outdated records. The investigation must be planned around accessible assets, operating conditions, pipe characteristics and the way information will be used by maintenance, engineering and repair teams.

Our work progresses from broad system screening to focused investigation. We identify priority zones, compare multiple forms of field evidence and narrow the areas that warrant direct confirmation or excavation.

A practical reality of unknown infrastructure

On private systems with plastic pipe and uncertain routing, the leak can sometimes be easier to locate than every section of pipe.

We use electromagnetic locating, GPR and tracer gas where appropriate, but we do not pretend that every non-conductive or undocumented line can always be mapped. The objective is to find the water loss and develop enough system understanding to support a targeted repair.

SURVEY TECHNOLOGY

How we investigate large water-distribution systems

The equipment is selected according to pipe material, system configuration, access, background noise, pressure and the quality of available records. No single technology is treated as conclusive in every environment.

Broad equipment experience without manufacturer allegiance. Our team uses and is familiar with professional platforms from SEWERIN, Fluid Conservation Systems (including Tri-Corr), GUTERMANN, Teledyne FLIR, Leica Geosystems, F.A.S.T. and Radiodetection, along with other established manufacturers in leak detection, thermal imaging, GPR and utility locating. Our personnel are certified in the operation of the FCS equipment we deploy.

We do not hold an exclusive distributorship or obligation to recommend any manufacturer. When retained to build a municipal leak-detection program, we evaluate the system’s pipe materials, layout, pressure, access, operating environment, staffing and program goals, then fit the products and methods to the system. The system determines the solution—not an equipment-provider relationship.

Acoustic data loggers

Data loggers are deployed at accessible valves, hydrants, meters or other contact points to collect and compare leak-noise behavior across the system. Their purpose is to screen large areas and identify priority zones for follow-up.

Leak correlation devices

Correlators compare leak signals between two or more points and calculate a probable location when pipe routing, distance, material and sound transmission support a reliable correlation.

Acoustic ground microphones

Ground microphones are used during focused field investigation to compare surface sound and refine a suspected location after broader survey evidence has narrowed the search area.

Electromagnetic locating

EM locating helps trace conductive utilities, accessible metallic pipe and tracer wire. It is essential for understanding traceable infrastructure, but it cannot make non-conductive or unbonded pipe visible.

Ground-penetrating radar

GPR is used selectively to investigate buried features, possible routing, disturbed subsurface conditions and other anomalies. It supports the investigation; it is not treated as a stand-alone leak detector.

Tracer-gas investigation

Tracer gas may be used on isolated portions of private systems when plastic pipe, weak acoustic transmission or unknown routing limits conventional survey methods. It can be particularly valuable in manufactured-home communities, HOAs and other private networks.

FIELD WORKFLOW

A structured path from system uncertainty to repair priorities

Large-system work is planned as a sequence. Each phase determines where the next phase should concentrate.

System review

Available maps, consumption records, pressure information, pipe materials, access points, repair history and current symptoms are reviewed before deployment.

Survey design

The network is divided into workable areas and the appropriate combination of data logging, correlation, acoustic investigation and locating methods is selected.

Field screening

Accessible system assets are surveyed systematically. Results are compared to identify repeatable indications and priority zones.

Focused investigation

Correlation, ground microphones, EM locating, GPR, tracer gas or isolation testing may be used to refine the probable source and support the repair decision.

Documentation

Observed conditions, methods, limitations and priority findings are organized for the owner, maintenance team, engineer or repair contractor.

REPRESENTATIVE EXPERIENCE

Completed work on systems where scale and uncertainty matter

Our positioning is grounded in completed survey and investigation work—not generic capability claims. The examples below illustrate the range of systems our team is prepared to evaluate.

RECENTLY COMPLETED • TOWN-WIDE SURVEY

Town of Hayden, Colorado

Subsurface Leak Detection completed a survey of the Town of Hayden’s water-distribution system. The assignment required systematic coverage across the community network, broad field screening and focused follow-up on areas warranting additional investigation.

SELECTED DISTRICT SURVEY WORK

Parker Water & Sanitation District

Our team has performed selected water-survey work for Parker Water & Sanitation District, applying large-system survey methods to defined portions of district infrastructure and supporting targeted follow-up.

CAMPUS-WIDE WATER CONSERVATION SURVEY

University of Colorado Boulder

Working alongside Martin/Martin, Artisan Consulting and Subsurface Leak Detection have surveyed older portions of CU Boulder’s extensive underground water infrastructure—an occupied campus environment with aging components, limited access and incomplete historical utility information.

30+ MANUFACTURED-HOME COMMUNITIES

RHP Properties • Nationwide

We have completed private-system investigations at more than 30 RHP manufactured-home communities across the United States, including locations in Kansas, Indiana, Wisconsin, Texas, Michigan and Colorado, with additional work in other states. These systems frequently require a combination of acoustic survey methods, utility locating and tracer-gas investigation.

Organizations are identified to describe representative project experience and coordination. Their inclusion does not imply endorsement.

COLORADO PUBLIC-SYSTEM EXPERIENCE

Survey and investigation work across municipalities and water districts

Representative Colorado public and district experience includes:

Municipal discipline for private infrastructure

Private distribution systems can be every bit as complex as municipal networks. Manufactured-home communities, HOAs, campuses, apartment properties, resorts and commercial developments may contain mixed pipe materials, undocumented modifications, long private mains and limited isolation.

Our large-system experience allows the investigation to be organized methodically, even when records are incomplete. When plastic materials or poor acoustic transmission limit conventional methods, tracer gas and focused isolation may become central to the strategy.

WHAT CLIENTS RECEIVE

Clear field information for the next decision

The final work product depends on the scope, but large-system assignments are organized to help owners and retained professionals decide where to investigate, expose, repair or continue monitoring.

Independent by design

Subsurface Leak Detection does not perform plumbing repairs, excavation or restoration. Our responsibility is to investigate the system, document the evidence and provide findings that can guide the client’s selected repair team.

COMMON QUESTIONS

Planning a municipal or private-system survey

Can you survey an entire town or large distribution system?

Yes. The scope is divided into workable survey areas and sequenced according to system size, accessible assets, pressure zones, pipe materials, operating constraints and available records. Town-wide and campus-wide assignments are planned as coordinated programs rather than disconnected service calls.

Do we need complete and accurate system maps?

Accurate records improve efficiency, but incomplete mapping does not automatically prevent an investigation. EM locating, GPR, accessible system assets and field observations may help develop the necessary understanding. On plastic or undocumented systems, the leak may be located even when every pipe route cannot be conclusively mapped.

Can plastic water lines be surveyed?

Yes, but plastic pipe may transmit acoustic energy differently than metallic pipe. Data logging, correlation and ground microphones are evaluated according to the site conditions, and tracer gas or isolation testing may be used on selected private-system segments when conventional acoustic methods are limited.

Does GPR directly detect a water leak?

GPR can support the investigation by identifying buried features, possible routing and subsurface anomalies. It is not treated as stand-alone proof of a leak. Findings are interpreted alongside acoustic data, utility locating, tracer-gas indications, pressure information and observed site conditions.

Do you perform the repair or excavation?

No. We remain focused on independent diagnostics. The client, municipality, district or property owner selects the plumber, utility contractor or excavation team that performs corrective work.

Bring us the system others find difficult to define.

Tell us what the meters, field conditions and system history are showing. We will help define an appropriate survey or focused investigation.