A wastewater system failure can create problems that go far beyond a damaged pipe or overflowing sewer. Sewage may reach buildings, soil, surface water, or groundwater, creating concerns about contamination, property damage, public health, and regulatory compliance. Determining what happened requires more than looking at the visible damage. It requires a careful engineering investigation.
As an environmental engineering expert witness, I examine the technical causes of wastewater system failures and evaluate how those failures may have affected people, property, and the surrounding environment. My role is to investigate the evidence, explain the engineering issues clearly, and provide an independent technical opinion that can help attorneys and other parties understand the case.
What Happens When a Wastewater System Fails?
Wastewater systems can fail for many different reasons. A sewer may become blocked by roots or debris. A pump station may stop operating. A pipe may deteriorate, collapse, or leak. In other cases, inadequate capacity, poor maintenance, improper design, or equipment failure may contribute to a sewage overflow.
The environmental impact depends on the type and extent of the failure. An overflow inside a building can cause water damage and create conditions that require extensive cleanup. A release outside the property may affect soil, drainage systems, streams, or groundwater.
I begin by identifying the nature of the failure and establishing what happened before, during, and after the incident. This helps me separate the actual engineering issues from assumptions that may have developed after the event.
How Do I Investigate the Cause of a Wastewater Failure?
My investigation typically begins with a review of the available documents. These may include engineering plans, inspection reports, maintenance records, operating information, photographs, repair records, correspondence, and previous studies.
I then look at the physical system and the conditions surrounding the failure. Depending on the case, this may involve inspecting sewer lines, pump stations, wastewater treatment facilities, septic systems, drainage structures, or related equipment.
I consider questions such as:
- Was the system properly designed for the conditions it was expected to handle?
- Was the equipment operating as intended?
- Were inspection and maintenance procedures adequate?
- Did a blockage, structural failure, hydraulic problem, or equipment malfunction contribute to the incident?
- Were there warning signs before the failure occurred?
- Could the failure reasonably have been prevented or detected earlier?
My background includes designing and managing water and wastewater infrastructure, so I can evaluate a failure from both the forensic and practical engineering perspectives.
How Do I Evaluate the Environmental Impact?
Once I understand how the failure occurred, I evaluate its potential environmental consequences. This requires looking at where the wastewater went, how long the release may have continued, and what materials or areas were exposed.
For example, I may examine whether sewage entered a building, migrated through soil, reached a storm drainage system, or affected a nearby water source. I also consider site conditions, drainage patterns, system configuration, and available sampling or laboratory information.
Testing and environmental data can be important, but numbers alone do not explain what caused a problem. I connect the available evidence to the physical system and the timeline of the event. This allows me to determine whether the observed environmental condition is consistent with the alleged wastewater failure.
Why Does Wastewater Engineering Experience Matter?
A wastewater failure investigation often involves complicated systems that are not easy to understand without engineering experience. Sewers, pump stations, force mains, treatment systems, septic systems, and collection networks all operate differently.
I have more than 40 years of experience working with wastewater projects, including system design, evaluation, construction oversight, and forensic investigations. My work has included sewage pump stations, sewer systems, wastewater treatment facilities, septic systems, and other related infrastructure.
I have also been involved in cases involving sewage backups, wastewater failures, contamination, and property damage. That experience helps me recognize the difference between a system that simply experienced a failure and one where the underlying design, operation, maintenance, or construction may have contributed to the problem.
How Do Records and Testing Help the Investigation?
Good documentation can make a significant difference in a wastewater failure case. Maintenance logs can show whether equipment was inspected regularly. Operating records may reveal changes in system performance. Engineering drawings can help establish how a system was designed and intended to function.
Photographs, repair records, inspection videos, sampling results, weather information, and other evidence can also help establish the timeline.
I review these materials together rather than relying on one piece of evidence. This approach helps me develop a clearer picture of the system before the failure, the event itself, and the conditions afterward.
Can My Investigation Help Establish Responsibility?
An engineering investigation does not automatically determine legal responsibility. My role is to provide an independent technical analysis of the facts and engineering issues.
As an environmental litigation expert, I can help explain whether a wastewater system was appropriately designed, operated, maintained, or repaired based on the evidence available. I can also evaluate competing technical explanations and identify whether the physical evidence supports them.
My findings are presented in clear language so attorneys and other decision-makers can understand the engineering issues without having to interpret complicated technical terminology on their own.
When Can Expert Witness Support Be Helpful?
Expert engineering support can be valuable when a wastewater failure involves significant property damage, contamination concerns, disputes over system performance, or questions about design and maintenance.
I work with attorneys, insurance professionals, property owners, and other parties who need an objective engineering assessment. My process generally includes reviewing the case materials, investigating the site and system, analyzing the technical evidence, preparing a clear report, and providing testimony when required.
My goal is to make the engineering understandable while remaining focused on the evidence. Whether the issue involves a sewer overflow, pump station failure, wastewater treatment problem, septic system failure, or suspected contamination, I approach each investigation based on the specific facts of the case.
When a wastewater system fails, understanding the environmental impact requires a careful connection between the system, the failure, and the resulting conditions. With my background in sanitary engineering and forensic investigations, I can evaluate those connections and provide a clear technical explanation that supports the legal process.
Need an experienced engineering perspective on a wastewater system failure?
Contact Bonneau Dickson, PE, for a detailed forensic evaluation. I can review the evidence, investigate the cause, assess environmental impacts, and provide clear technical findings to support your case.
