RJN is pleased to announce that Jose Maldonado, PE, has joined RJN’s senior leadership team as vice president. Jose will now oversee operations for RJN’s Houston office. His promotion to vice president is effective immediately.
When you have completed a comprehensive inflow/infiltration (I/I) reduction program, but I/I levels are still not where you want them to be, what’s next? Finding those persistent sources requires diligence and good quality data.
I recently caught up with an old college friend who mentioned she was refraining from using water during heavy rains so that she wouldn't contribute to overloading the sewer system. It sparked an impromptu lesson on urban hydrology and after hearing similar concerns expressed elsewhere, I thought it was worth sharing my thoughts. No one welcomes beach closings or basement backups, but is abstaining from water use during storms a good way to help prevent sewer overflows? The answer is maybe sometimes, but not really, depending on context. Let me explain.
Like most cities across the US, the City of Tulsa is dealing with the maintenance and operation of an aging sanitary sewer infrastructure. One facet of the aging infrastructure of significant concern was the City’s vast array of large diameter concrete sanitary sewer interceptors. The City had found it was difficult to determine the remaining lifespan of its concrete interceptors using traditional close-circuit television (CCTV) methods.
RJN Group, Inc., is pleased to announce that Kraig Moodie has joined its senior leadership team to oversee all East Coast operations. Servings as a regional vice president, Kraig will ensure that RJN continues to deliver on its promise of providing pragmatic and innovative flow monitoring and wastewater system engineering solutions to our clients.
RJN is pleased to announce the Board of Directors has selected Paul Costa to serve as RJN’s next President and CEO. Costa, a 30-year industry veteran, assumed the leadership role at the beginning of August 2021.
If the last few years have shown us anything, it is that storm events are trending toward the severe end of the spectrum in terms of both intensity and frequency. However, while major storms typically make the headlines as they pose a serious threat to our nation’s communities, sometimes it is the less intense storms that cause the most issues for collection system operators.
Inflow/infiltration or clean water entering the collection system can strain capacity and cause overflows. Identifying sources and mitigating those sources through rehabilitation can significantly improve the performance of the collection system. Water seeping into the system through dead laterals, interstitial flow, and leaking connections is often not just seeping as shown in these videos.
RJN Group Inc. has been named a Zweig Group Best Firms To Work For. This recognition is a culmination of effort . by all of our employees—from Denver, to Houston, to Baltimore. RJN Vice President of Human Resources Gary Wendel said that he was very proud of RJN’s employee-owners for the part they each play in creating an award-winning work environment.
On its first American Society of Civil Engineers (ASCE) report card, the nation’s stormwater infrastructure received a D+. While a D+ is not unheard of, as wastewater infrastructure also received a D+, it still does not bode well for our stormwater infrastructure. Flooding issues have compounded as impermeable surfaces increase with development and current systems age beyond their designed service life. Unlike its sewer and water counterparts, stormwater doesn’t benefit from the administrative muscle that can facilitate expedited progress.
On any day, given the nature of the work we do at RJN, our firm’s field personnel see all manner of strange things. However, a few weeks ago, things took an even stranger turn when a four-legged friend decided to lend a hand with a manhole inspection.
In 2014, RJN found the City of Joliet had numerous interceptors in poor condition. One of which, the large-diameter Rock Run Interceptor (RRI), was flagged as a high priority due to its proximity to the Rock Run Creek.
NASSCO has elevated and standardized the approach for inspecting sewer assets, both sewers using Pipeline Assessment Certification Program (PACP™) standards and structures using Manhole Assessment Certification Program (MACP™) standards. However, once a structure inspection has been performed, how do you get to a rehabilitation program and develop specifications for bidding?
In Part 1, this discussion centered on whether conserving water on rainy days could help prevent overflows in separated sewer systems. Combined sewers are the focus of this discussion. By design, combined sewers are significantly larger than sanitary sewers, so in a well-functioning combined sewer system, pipeline capacity is rarely the primary constraint. Instead, it is the capacity of downstream treatment facilities that can easily be exhausted.
So, you reviewed thousands upon thousands of feet of CCTV footage and now you have mountains of data on your sewer system. Great, but now what? How do you take the time, effort, and spreadsheets teeming with information from your CCTV endeavors and turn them into something that works for you? As your fight-or-flight response begins to kick in, take a moment to collect yourself and know that you’re not alone. Now that you’ve recentered yourself and crept back in from the fire escape, our asset management pro, Tristan Nickel, PE, AWAM, has some insights on putting your data to work.
This small Texas town cast a gigantic vision for creating an asset management program for their water and wastewater systems. RJN helped them achieve the program plan and establish an iterative process for infrastructure performance improvement.
RJN Group, Inc., is pleased to announce that Vice President Randall “Randy” Brodner, PE, has relocated to Omaha to take the helm of RJN's Nebraska-based operations. With 15 years of experience delivering engineering assessment and design services for large and small diameter collection and distribution system pipelines, Randy will bring new perspectives to providing innovative solutions to our Nebraska clients.
So your engineering team has decided to use cure-in-place-pipe (CIPP) to prolong the useful life of the municipal pipelines, but what can the team do to ensure it's successful? Because CIPP programs have become commonplace, it is becoming more prevalent to encounter CIPP lining failures on installations long before the end of their estimated life, oftentimes within the first year of installation. These failures are expensive, frustrating, and completely avoidable.
At RJN, when individuals demonstrate acute business acumen and an aptitude for leadership, our firm takes notice. With this in mind, we are pleased to announce that Randall Brodner, PE, and Todd Leistner have been named RJN principals.