AREAS OF SERVICE
The ARRO brand of civil engineering is rooted in our love of our profession, our dedication to our clients, and our desire to improve the environment and the communities we serve.
Wastewater
For 75 years, ARRO has been a cornerstone of the wastewater industry in the mid-Atlantic region. Our clients can feel confident that they are in good hands, thanks to our comprehensive capabilities, innovative solutions, and extensive knowledge of ever-changing regulations. We are uniquely positioned to provide our public and private sector clients with solutions to their wastewater needs. From making sure your residents have clean water, to protecting the environment in which we live and work, we are committed to providing services that make our communities better.
Wastewater Services
Wastewater Capabilities
- Wastewater Treatment Facilities
- Process evaluation/modeling/engineering
- Solids handling facility design
- Act 537 sewage facility planning
- Pumping stations
- Collection and conveyance systems
- Permitting and regulatory compliance
- Construction management and observation
- Odor control
- Flow metering
- Management & Staffing studies
- Infiltration and inflow (I/I) investigations
- Contract operations
- Biological nutrient removal (BNR)
- Enhanced nutrient removal (ENR)
- Tapping fee calculations
- Rate and utility valuation studies
- Industrial pretreatment and compliance
- On-Lot Disposal Systems (OLDS)
- Nutrient Credit Trading
- Asset Management
- O & M Manuals & Standard Operating Procedures
- Capital Planning
- GIS & Geospatial Services
- Grant Writing & Assistance
Engineering Services
- Electrical
- Power distribution
- Standby/emergency power systems
- Energy conservation/management
- Interior/exterior lighting
- Process instrumentation and controls
- Telemetry control systems
- Security/alarm systems
- SCADA layout
- Structural Building analysis/design
- Structural Foundation analysis and design
- Structural Existing structure evaluations
- Mechanical HVAC
- Mechanical Plumbing
- Stormwater and erosion/sediment control
Hydraulic Modeling
- Wastewater collection systems
- Water distribution systems
- Stormwater systems
FEATURED PROJECTS
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...
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Act 537 Plan Special Study
To address planning and management requirements needed to extend public sanitary sewer service for existing and proposed development, ARRO assisted the Township and the Authority by preparing an Act 537 Plan Special Study. The plan was broken out into eight (8) components, and evaluated various alternatives...
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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...
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Effluent Storage Tank Evaluations
ARRO completed comprehensive visual examinations of the Eagle Hunt effluent storage tank, Upland Farms effluent storage tank, and Windsor Ridge effluent storage tank. Inspection of these effluent tanks consisted of visual inspection to determine the overall condition of the tanks’ exterior, foundation,...
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Upper Uwchlan Township Municipal Authority Administrator
In 2006, Upper Uwchlan Township was in a unique position: its fledgling Municipal Authority was taking on several new projects, and the Township Manager had breached proper protocol...
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Guest Farm Village Sewer Authority Wastewater Treatment Plant Upgrade
ARRO regularly completes applications for funding water, stormwater, and wastewater projects for our clients. In this case, the Guest Farm Village Sewer Authority requested that ARRO procure funding for much-needed wastewater treatment plant upgrades. Located in Montgomery Township, Franklin County,...
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John F. Martin WWTP
John F. Martin & Sons contracted with ARRO to conduct a feasibility study, after being required to reduce loadings to the Womelsdorf Borough wastewater treatment plant. In February 2015, ARRO administered a study to develop pre-treatment options for their processing facility. ARRO began by sampling...
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Wastewater Treatment Plant Upgrade Design & Bid
A food processing facility located in Lancaster County contracted ARRO to complete design and bidding services for their on-site wastewater treatment plant. For confidentiality purposes, their name and specific location have been excluded.
The facility has planned to expand its production, which would...
Learn 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
To address planning and management requirements needed to extend public sanitary sewer service for existing and proposed development, ARRO assisted the Township and the Authority by preparing an Act 537 Plan Special Study. The plan was broken out into eight (8) components, and evaluated various alternatives...
Read 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
ARRO completed comprehensive visual examinations of the Eagle Hunt effluent storage tank, Upland Farms effluent storage tank, and Windsor Ridge effluent storage tank. Inspection of these effluent tanks consisted of visual inspection to determine the overall condition of the tanks’ exterior, foundation,...
Read More
In 2006, Upper Uwchlan Township was in a unique position: its fledgling Municipal Authority was taking on several new projects, and the Township Manager had breached proper protocol...
Read More
ARRO regularly completes applications for funding water, stormwater, and wastewater projects for our clients. In this case, the Guest Farm Village Sewer Authority requested that ARRO procure funding for much-needed wastewater treatment plant upgrades. Located in Montgomery Township, Franklin County,...
Read More
John F. Martin & Sons contracted with ARRO to conduct a feasibility study, after being required to reduce loadings to the Womelsdorf Borough wastewater treatment plant. In February 2015, ARRO administered a study to develop pre-treatment options for their processing facility. ARRO began by sampling...
Read More
A food processing facility located in Lancaster County contracted ARRO to complete design and bidding services for their on-site wastewater treatment plant. For confidentiality purposes, their name and specific location have been excluded.
The facility has planned to expand its production, which would...
Read More 
WORKING TOGETHER
EVERY STEP OF THE WAY
CONNECT WITH THE ARRO TEAM
ARRO Consulting is a leading engineering, environmental, information technology, and management consulting firm headquartered in Lancaster County with five other strategically located offices in PA and MD.
