Environmental Due Diligence

As part of the due diligence process for real estate transactions, Phase I Environmental Site Assessment’s (ESA’s) can often identify recognized environmental conditions (RECs) associated with the current or former use of a property. RECs can be associated withLeaking Underground Storage Tank (LUST) sites that were not properly closed, dry cleaners, manufacturing or industrial facilities, vehicle repair shops, or properties where toxic chemicals may have been used and not disposed of properly.    

When Phase II ESA work is needed to assess the potential for soil, groundwater or soil vapor impact, the safety of your field staff and protecting the current property’s infrastructure is critical. GPRS deploys industry leading equipment operated by highly skilled and experienced project managers. Our subsurface investigation methodology (SIM) process ensures that every proposed soil boring, groundwater monitoring well, and soil vapor pin location is cleared of utilities prior to drilling.  GPS mapping of utility findings and sample locations is included in every project.  

Soil, groundwater or soil gas contamination may be identified above cleanup criteria and additional investigation may be required to determine that no exposure pathways exist or that they can be remediated. With existing maps already in place from the initial investigation, GPRS can quickly locate previous sample locations, complete a utility restake, and help determine if any nearby utilities may be acting as migration pathways for contamination.    

GPRS is the trusted leader for damage prevention in the environmental sector. Our project managers deliver results from the beginning of the initial investigation, throughout delineation and remediation, until project completion. With our nationwide network of Project Managers, we are equipped to mobilize to projects across the United States.

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Rather than send a rigid rate sheet to prospective clients, GPRS can create a customized service plan. We take into account our industry experience, national footprint, and operational/scheduling capacity to craft a customized plan just for you.


With one single point of contact for you company, GPRS can schedule utility locating, video pipe inspection, and concrete scanning projects for your site with one simple phone call. Gone is the need to call multiple service providers across a region or nationally. GPRS has Project Managers in every major market in the US and our single point of contact will simplify your scheduling process.


GPRS understands that clear, understandable, and consistent pricing is a big deal. Our nationwide footprint allows us to streamline our costs on a nationwide basis, we are sure to craft a cost structure that makes sense for the scope of work. Rather than send a blanket rate sheet, we consultaively compose pricing plans for each project.


Every campus, site and facility have different challenges. Since our inception, GPRS has completed hundreds of thousands of projects and relies on that experience when crafting a site-specific plan for safety, scanning and reporting. With the SIM Specification as our guide, we will craft an individualized approach to each and every project. From facility mapping, locating prior to excavation, to performing one-call locating - GPRS will perform the right service for your scope of work.

One Call Program

GPRS exceed industry performance when it comes to the accuracy of our utility locating. Our team of Project Managers can continue the support of your project by crafting a one-call program from when your project transitions to the O&M phase.

Public Property

Damage prevention is critical when excavating in a public right-of-way. Using the 811, call before you dig system, is an essential step to take when trying to avoid underground utility strikes. It's the law! GPRS is able to contract and perform one-call type utility locating for your underground assets.

Private Property

A utility locate on private property is not complete until a private utility locator like GPRS has been called to comprehensively locate the entire campus. GPRS can create a one-call type program for your facility or campus in the case that you have utilities that lie within public property.


GPRS can place our highly trained PMs within your facility or campus to perform utility locating and concrete scanning services. When our PMs are placed within a facility, many benefits realized when compared with our standard services. Our schedule is at your disposal, there is familiarity with site intricacies, and we can manage as-built drawings for the entire site.

As-Built Drawings

As-built utility drawings don't always show the current underground conditions of a site. Drawings that are produced in the design-phase of a project don't always reflect the exact location of underground utilities. Over time, due to renovations, repairs, and additions, as-built drawings become out of date. GPRS PMs are able to update as-built drawings so that they reflect the actual vertical and horizontal position of underground facilities.