Land surveys form the foundation for municipal and private projects by defining property limits, existing conditions, and key site features. Those factors shape what can be built, how it can be designed, and how it will function over time. With verified site documentation in place, project teams can move forward using a shared baseline rather than interpretation. That baseline serves different purposes depending on the client.

For municipalities, survey information supports capital planning, right-of-way management, permitting, and oversight of public assets. For developers, it informs feasibility, entitlement, design coordination, and construction planning. In both contexts, surveys establish a shared reference that allows planners, engineers, attorneys, lenders, property owners, and contractors to work from a uniform understanding of a site.

That shared reference becomes increasingly important as projects evolve. Sites undergo ownership changes, designs are refined, construction introduces variation, and improvements may be revisited years later. Survey information provides continuity across those transitions and creates a consistent basis for actions that extend beyond a single phase or milestone.

Standards & Oversight

Surveying is a regulated professional service. In Illinois, boundary surveying is governed by the Illinois Professional Land Surveyor Act and the associated Minimum Standards of Practice. Together, these requirements define how surveyors research historical records, evaluate physical evidence, reconcile discrepancies, and document their findings. The goal is consistency, accountability, and reliability in how land information is established and relied upon.

While survey regulation varies by state, many jurisdictions rely on a similar structure. Professional licensure, documented research, and field verification remain common expectations, even as local statutes and administrative rules differ. This structure distinguishes surveys from other forms of mapping or data compilation and establishes survey information as a reliable basis for legal, regulatory, and development decisions.

In transactions involving financing or title insurance, state requirements are supplemented by nationally recognized standards. The ALTA/NSPS Land Title Survey standards, developed jointly by the American Land Title Association and the National Society of Professional Surveyors, establish uniform requirements used primarily in real estate transactions involving financing and title insurance. These standards define specific research, fieldwork, and certification elements that allow lenders and title professionals to rely on survey information regardless of location.

Survey Types & How They Are Used

Although surveys serve different purposes at different stages of a project, they are connected by a common goal: providing reliable information about land and improvements so decisions can be made with clarity. Seeing how each survey type functions, and how they connect, explains why survey work remains relevant throughout a project lifecycle.

Boundary Surveys & Plats

Decisions about property use, development, transfer, and public investment often begin with ownership. Boundary surveys establish or reestablish property lines by evaluating how land has been described, monumented, and occupied over time. This boundary analysis defines the limits of title and related interests such as easements and rights of way, which influence access, design limits, and future property actions.

The boundary survey process starts well before any fieldwork occurs. Surveyors compile and evaluate recorded deeds, plats, right-of-way documents, and historical surveys to understand how a property has been described and how it relates to surrounding parcels. That research establishes the framework for identifying potential boundary locations and highlights where descriptions overlap, have a gap, conflict, or rely on older measurement methods.

Fieldwork ties those records to physical evidence on the ground. Surveyors locate existing monuments such as iron pins, pipes, stones, or other markers referenced in historical documents. Improvements, fences, walls, and long-standing occupation patterns are also observed where they provide context for how boundaries have been interpreted or relied upon over time. Modern surveying equipment, including, but not limited to, total stations, GNSS (Global Navigation Satellite System) receivers, UAS (Unmanned Aircraft Systems) and data collectors, are used to measure these features with precision and relate them to a consistent coordinate system.

Surveyors analyze the collected records and field evidence to reconcile discrepancies and establish boundary lines in accordance with professional standards. They evaluate the reliability of historical documents, the condition and placement of monuments, and the relationship between adjacent properties before documenting their conclusions on survey plats and related records.

This boundary analysis underlies a range of survey deliverables used in both public and private development, including plats of survey, subdivision plats, highway plats, and plats of dedication or easement, just to name a few. While each document serves a distinct purpose, all depend on the same research, field verification, and professional determination. That documentation becomes a dependable reference for permitting, construction layout, future property actions, and for agencies managing public infrastructure or right-of-way, it provides continuity across projects and changing priorities over time. In some contexts, however, boundary documentation must meet additional transaction-specific requirements.

ALTA/NSPS Land Title Surveys

Real estate transactions that involve financing and title insurance often require a higher level of documentation than a typical boundary survey. ALTA/NSPS Land Title Surveys address that need by applying a defined set of additional requirements to support reliance by lenders and title professionals.

The work builds directly on the same boundary determination process used for other boundary surveys. Record research and field evidence remain central, but the scope is expanded to capture information that affects title, access, and insurability. This includes a more detailed review of recorded easements, rights of way, and access provisions, along with closer coordination with title commitments and related documents provided for the transaction.

Fieldwork reflects that expanded focus. In addition to locating boundary monuments, surveyors document visible improvements, access points, and site features identified in the ALTA/NSPS standards or requested through optional survey (Table A) items. Those features are measured and tied to the established boundary framework so they can be depicted consistently with the title information being relied upon for the transaction. The goal is to make a more complete depiction of conditions that may influence how a property is used, accessed, or insured.

Certification and reporting requirements further distinguish ALTA/NSPS surveys. Standardized certifications are provided to confirm that the survey meets the adopted national standards and aligns with the specific needs of the transaction. These certifications allow lenders and title professionals to rely on the survey as part of their risk evaluation, regardless of where the property is located.

Although the scope is broader, the methodology remains consistent with the professional surveying practice. The added requirements refine the survey scope to correspond with the specific reliance and documentation needs of the transaction. Understanding that distinction helps clarify the role ALTA/NSPS surveys play within real estate transactions and how they fit alongside other survey types used throughout planning and development.

Topographic Maps

Boundary surveys establish legal boundaries, whereas topographic surveys concentrate on physical features. Understanding how a site functions begins with accurately documenting ground conditions and site features. Changes in elevation, surface features, drainage paths, and existing infrastructure all influence how land can be planned, designed, and built.

A topographic map documents these conditions by collecting detailed elevation data and mapping visible site features. Surveyors measure ground elevations to describe slopes, low points, and drainage patterns that affect grading and stormwater design. Features such as pavement, utilities, buildings, curb lines, structures, and natural elements are located to clarify how a site can realistically be used and where design decisions will be constrained by existing conditions.

Field measurements are gathered using contemporary surveying systems capable of capturing both discrete elevation points and surface features. For expansive or irregular terrain, aerial imagery or lidar may supplement ground observations to provide broader coverage. The information is compiled into a consistent horizontal and vertical reference so designers can work from a single existing-conditions base throughout planning and design.

As planning progresses, that existing-conditions mapping supports coordination across disciplines and allows layouts to be refined with greater confidence. Engineers and planners rely on this information to evaluate drainage solutions, coordinate utilities, assess accessibility, and identify potential conflicts before construction begins. On constrained or developed sites, even subtle grade changes or closely spaced features can influence constructability and long-term performance.

Topographic information does not establish ownership limits, even when features appear near property edges. When design decisions approach those limits, boundary information must be confirmed and considered alongside physical site data. Viewed together, boundary and topographic information provide a clearer understanding of the legal and physical framework within which a project must operate.

Site conditions rarely remain static. As projects move through phases or surrounding development occurs, physical conditions may change. Maintaining topographic information as a current reference supports phased development and long-term public facilities where evolving conditions must be accounted for over time.

Construction Surveys & As-Built Surveys

As projects move from design into construction, survey services shift from documenting conditions to establishing the framework for construction. Construction surveys provide the control and layout needed to translate design intent into work that can be built accurately in the field. This includes establishing horizontal and vertical control networks that serve as the baseline for grading, utilities, pavements, structures, and other site improvements.

Surveyors work closely with construction teams to locate layout points that guide installation and sequencing, including building layout, foundation lines, and other critical features. Survey control is extended across the site so work performed by different trades remains coordinated. This shared control structure allows construction activities to proceed with consistency, even as work is phased or adjusted to accommodate site conditions and schedules.

Construction layout does not occur only at the start of the construction of a project. As work progresses, additional layout, verification, and reference checks support coordination between approved plans and field activities. This ongoing role helps maintain alignment as construction advances and conditions evolve. Once installation is complete, survey services shift again, this time toward documentation of what was constructed.

As-built surveys serve a complementary role once construction is complete. Rather than guiding installation, they document what was constructed and where it was placed. Surveyors locate finished improvements and record their final position including building footprints and related structural elements, utilities, and site features. The resulting documentation reflects the completed site rather than planned design locations.

That documentation becomes part of the long-term record for a property or facility. Municipal agencies rely on it for infrastructure management, maintenance planning, and future capital improvements. Developers use it for project closeout, ownership transitions, and later site modifications. In both settings, as-built surveys provide continuity by preserving accurate records that can be referenced by future staff, consultants, and project teams.

Viewed together, construction and as-built surveys complete the transition from design intent to permanent record. When both are incorporated into the overall survey scope, they maintain coordination during construction and provide documentation that remains useful long after work is complete, including accurate records of building placement and site improvements.

GHA Approach & Capabilities

Survey as Part of a Coordinated Project Strategy

The principles outlined above shape how GHA delivers survey services in practice. At GHA, surveying is structured as an integrated component of broader planning, design, and construction services. Boundary, topographic, construction, and as-built surveys are aligned with the lifecycle of a project so that information collected early continues to inform later phases.

This integrated approach becomes especially important on projects where multiple constraints overlap and survey information must remain consistent across disciplines, agencies, and review steps.

At the Sanctuary Golf Course in New Lenox, Illinois, survey services were structured to address a combination of boundary, environmental, and regulatory considerations within a single coordinated effort. The project required floodplain boundary definition to support permitting, along with detailed topographic information to guide site improvements near sensitive areas.

Historical research and prior survey data from the 1990s were reviewed and reconciled with current field conditions, identifying areas of documented archaeological significance within the project limits. These findings influenced how the site was evaluated and how improvements could be planned within defined limits. Portions of the property contained previously identified cultural resources that were protected in place, requiring survey activities and subsequent design work to respect defined limits of disturbance.

Coordination with archaeological specialists and the State Historic Preservation Office introduced additional requirements tied to permitting and regulatory review. Survey data needed to clearly define protected areas, establish reference limits in the field, and provide documentation that could be used by multiple parties evaluating the project.

Additional site constraints, including an existing natural gas pipeline and proximity to regulated floodplain areas, required survey information to support multiple layers of analysis at once. Existing conditions mapping, boundary context, and historical considerations were combined into a unified base that could be used reliably by design and permitting teams.

By structuring survey services around these overlapping requirements, the project team worked from a consistent and comprehensive understanding of site conditions, allowing planning and design decisions to reflect physical constraints, regulatory obligations, and site history from the outset.

Transportation projects present a similar need for alignment between boundary analysis and engineering development. On the McHenry County Roundabout initiative, topographic survey, utility documentation, right-of-way determination, and boundary research were coordinated to support preliminary engineering and environmental review. Permanent benchmarks and roadway feature documentation established a control structure that served design, review, and future construction phases. Rather than treating boundary and existing conditions as separate efforts, the information was organized as a unified reference that guided decision-making throughout the project.

These projects illustrate how coordinated survey services reduce fragmentation and preserve alignment across disciplines. By approaching survey services as part of a coordinated strategy rather than isolated assignments, GHA helps municipal clients manage complexity while preserving continuity across planning, design, and construction.

Technical Integration Across Disciplines

GHA’s survey team works in coordination with our civil design, transportation, water resources, and construction divisions so that survey information directly informs downstream decisions. Existing conditions mapping supports grading and drainage design, boundary determinations shape site layout and access planning, and construction control maintains alignment as improvements are installed.

Cross-disciplinary coordination is equally important in environmentally sensitive contexts, where physical conditions and regulatory considerations intersect. At Whistler Woods Forest Preserve in Riverdale, survey services were structured to support environmental planning and riverbank restoration within that coordinated framework. The scope included a full topographic survey tied to Illinois State Plane coordinates and North American Vertical Datum of 1988 (NAVD 88), along with tree inventory, nearshore depth measurements, and mapping of drainage and visible improvements. These elements were organized within a single reference framework to support restoration planning and regulatory coordination.

Because surveyors and design professionals operate within the same organization at GHA, adjustments can be evaluated collaboratively. Field observations can be incorporated into design refinements, and updated design intent can be translated into revised layout without fragmenting responsibility across firms. This continuity strengthens delivery and preserves alignment between documentation and implementation.

Construction & Long-Term Value

During construction, GHA surveyors collaborate with contractors, inspectors, and project managers to maintain site control and layout across phased installations. That coordination ensures that improvements are placed accurately while preserving a consistent reference for future documentation.

As-built surveys are approached with the same long-term perspective. Final field conditions are recorded in formats that support infrastructure management, asset tracking, and future capital planning. For municipal clients, this documentation becomes part of an ongoing project record that may be referenced years later as facilities are modified or expanded. For private clients, it provides clarity during closeout and future property actions.

Across municipal and private projects alike, GHA structures survey services to deliver practical solutions that extend beyond compliance. By integrating surveying within a broader engineering framework, we help clients maintain clarity, consistency, and continuity from boundary research through construction documentation and into long-term management.

Understanding how a water system performs in real-world conditions requires more than just maps and models. Hydrant performance, pressure fluctuations, and unaccounted-for water loss are all part of a broader picture that’s often hard to see without field-level insight. To help fill that gap, GHA’s Public Works Operations (PWO) Division offers hydrant flow testing and leak detection. These tools give communities a clearer view of system conditions and practical data they can act on.

These field-driven tools give communities direct feedback on how their water systems are functioning. Whether identifying low-pressure zones, verifying infrastructure capacity, or detecting unaccounted-for water loss, both services are designed to support real-time understanding and long-term system planning.

Field-Validated and GIS-Connected

Flow testing is one of the most reliable ways to assess a distribution system under real-world conditions. It helps confirm that hydrants deliver the expected volume and pressure. It also reveals bottlenecks or signs of restricted flow. These tests are especially useful when pump station issues or pressure zone imbalances are suspected, offering a proactive option before failures occur.

GHA’s flow testing services are delivered directly by the PWO Division, with crews managing each step from set-up to data delivery. In the field, crews use hydrant diffusers equipped with pitot meters to measure flow and document results directly on tablets using GIS-integrated forms. Every test is captured in real time, eliminating manual entry and linking results directly to mapped assets.

“Flow testing gives us a direct window into how the system responds under load,” says Engineering Technician Eric Kaufman “We can record pressures at multiple locations and immediately see where performance isn’t lining up.”

Listening for Losses

In tandem with flow testing, PWO also provides leak detection services using acoustic sounding equipment. These tools allow technicians to pinpoint leaks with precision, often identifying problem areas before surface symptoms appear. Even subtle variations in sound, like a slight hiss along a water main, can indicate a loss.

“It doesn’t take much. Our equipment is sensitive enough to hear a pin drop if something’s off,” says Eric. “That means we can be exact about where the issue is, which saves time and money for the client.”

Leak detection is particularly important for communities tracking non-revenue water. In Illinois, water systems that experience losses greater than 10% are required to file an IL 2 form with the state and begin a water loss control program. By identifying small leaks early, municipalities can avoid reaching that threshold and defer more costly repairs.

In the Field: The Village of Round Lake Beach

In the Village of Round Lake Beach, the PWO Division provides annual hydrant flow testing to help evaluate system performance across the water distribution network. Crews use GIS-based forms to document pressure readings in the field and processed the results on-site, allowing the Village to receive timely, organized data tied directly to mapped infrastructure. These results provide a clearer view of how the system performs under demand while supporting future planning and maintenance decisions.

In certain areas, leak detection is also performed to investigate potential sources of water loss. Using acoustic sounding equipment, the team can listen for irregularities and identify possible points of concern, helping create a better understanding of system conditions. Together, these services give the Village actionable information without requiring internal resources or equipment.