You Live Our Work
From sustaining water resources, to managing public works and developing parks, ARRO has been strengthening and protecting communities since 1946.
Project Spotlight: Park Expansion
With 3D rendering, showing is so much better than just telling!
Learn More 
With 3D rendering, showing is so much better than just telling!
Read More 
Our latest batch of scholarship winners has been announced!
Read More 
The “forever chemicals” are here, and the stakes are high. ARRO Consulting is ready to help with our PFAS Survival Kit.
Read More 
ARRO's expert use of drone technology has greatly expanded the services we provide - and how they are delivered.
Read More 
In this latest Employee Spotlight, Andrew Tuleya (GIS Manager/Analyst IV and drone pilot extraordinaire) talks about his work with both ARRO and the non-profit Horse-Shoe Trail Conservancy.
Read More 
Heather Montgomery, ARRO's newly appointed CFO, shares details on what she believes is the single most important thing an organization can have, what she sees in ARRO’s future, and how living many years in Alaska helped make her the strong leader she is today.
Read More 
“What began as an extremely thorough search and in-depth screening process has ended with Heather, who I know will deliver a compelling blend of strategic planning and hands-on leadership,” said Cary Vargo, CEO of ARRO Consulting...
Read More 
We’re happy to bring you our second Employee Spotlight just in time for good holiday season reading. This regular feature acquaints you with both an ARRO team member, and a nonprofit in which they – and now ARRO – support. This spotlight falls on Evan Charnoff, a Scientist I for ARRO Consulting, who...
Read More 
Kelsey Wood-Biros, G.I.T., a Scientist III for ARRO, was recently certified as a Forestry Professional through Maryland’s Department of Natural Resources. Working out of ARRO’s Frederick office, she explained that as an environmental geologist, she is extremely excited to be able to help protect forests...
Read More 
Join us!
We’re always eager to add new talent to our team of dedicated professionals.
FEATURED PROJECTS
Swatara Township Authority
Challenge: Due to tighter effluent restrictions on nitrogen and phosphorus, major WWTP upgrades became necessary.
Opportunities: Work closely with the client to select an innovative technology for nutrient removal and integrate it into their existing WWTP. Implement a new headworks, a new biological nutrient removal system, a new emergency generator, and upgrades to the SCADA system.
Learn More 
Spring Grove Borough Wastewater Treatment Plant Upgrade/Expansion
In 2011, ARRO completed an infrastructure evaluation of the existing 0.28 MGD Spring Grove Borough wastewater treatment plant, which (at the time) included primary and secondary treatment of raw sewage for portions of Spring Grove Borough and Jackson Township in York County. ARRO began the design of a biological nutrient removal treatment upgrade for Spring Grove in 2013, and was responsible for the design, construction management, engineering, and observation services for construction of the designed...
Learn More 
Challenge: Due to tighter effluent restrictions on nitrogen and phosphorus, major WWTP upgrades became necessary.
Opportunities: Work closely with the client to select an innovative technology for nutrient removal and integrate it into their existing WWTP. Implement a new headworks, a new biological...
Read More
In 2011, ARRO completed an infrastructure evaluation of the existing 0.28 MGD Spring Grove Borough wastewater treatment plant, which (at the time) included primary and secondary treatment of raw sewage for portions of Spring Grove Borough and Jackson Township in York County. ARRO began the design of...
Read More