Engineering and Construction


Chief Engineer 


This Team, led by the Chief Engineer, is comprised of the Development Services, Process Control Engineering, Facility Design & Construction, Pipeline Design, Planning, Regulatory Services, Pipeline Construction, Engineering and Environmental Services Divisions.





Development Services Division Leader 

Tom Gingrich

This Division is responsible for managing the process for the planning and design, and administration of water and sewer main extensions, and preparing contract drawings for service extensions to single homes and homes with failing wells and/or septic systems. The Division is also responsible for the review and issuance of all plumbing, gasfitting and house connection applications, collection of related fees and charges, and review and processing of all onsite plans, service connection submittals, and applicant-built construction packages.


Thomas Hilton

Planning Division Leader 

Thomas Hilton

This Division is responsible for determining when facilities and major pipelines will reach capacity through an analysis of existing water demand and sewer flows, input from the Counties' Ten Year Plan, and the population/employee growth projections by the Maryland-National Capital Park and Planning Commission.



Process Control Engineering Division Leader


This Division is responsible for directing the overall strategy for process control initiatives and projects in the Commission. This Division is responsible for designing, developing, implementing, and troubleshooting process control and related database systems at our facilities including SCADA. In addition, we investigate and justify control system modifications to reduce cost while increasing product quality and reliability. Our goals are: less attended water and wastewater plant operations, optimized chemical feed operations, and maximized energy savings.



Facility Design and Construction Division Leader


This Division administers and manages facility planning studies, special projects, and other miscellaneous contracts; facility and major pipeline designs; and the construction management and inspection of major facility projects.




Regulatory Services Division Leader 

Rosanna Laplante

This Division is responsible for the federally mandated pretreatment program and enforcement of the Plumbing and Gasfitting Regulations. The Division regulates discharges into the sewer system, samples discharges from industrial users, conducts investigations, and responds to spills of hazardous materials entering the sewer system. In addition, the Division inspects the work of plumbers, gas fitters, septic haulers, and cross connection mechanics in the Sanitary District; and manages the fat, oil, and grease program, the cross connection control program, and the mechanical plans review.


Pipeline Design Division Leader


This Division is responsible for the investigation and analysis of existing water and sewer pipeline systems to include flow monitoring, inspection, and evaluation; plans and designs contracts under the water replacement program, the water main cleaning and lining program and the sewer rehabilitation program; administers non-destructive testing and inspection of pre-stressed concrete cylinder pipe; conducts dam monitoring, inspection, analysis and repair; conducts corrosion monitoring and protection design and installation; plans and designs contracts for facilities improvements; develops and maintains design and construction standards and guidelines; reviews and approves State, County, Municipal and private developer road improvement projects; reviews and approves land improvements within WSSC Water rights-of-way and approves street abandonments; reviews sewer house connections for replacement; and provides technical support to other Divisions in disciplines such as structural, geotechnical hydraulic, corrosion and general civil engineering.


Pipeline Construction Division Leader  

John Mitchell

This Division is responsible for the contract management and inspection of construction contracts for water supply and wastewater pipelines. The inspection of paving and sod installation, soil compaction, new and renewed house connections, cleaning and lining of water mains, sewer rehabilitation, and water main replacement is also managed under this Division.



Engineering and Environmental Services Division Leader  

RosannaLa Plante

This Division houses the Engineering Center of Excellence for WSSC Water.  The Division provides technical resource and support services for capital construction, design, environmental protection, GIS and property acquisition by developing construction contract specifications and bid documents; engineer's and change order cost estimates; easement, right of way and service connection recordation for WSSC Water, developer, and third party constructed facilities.  The Division also provides in-house design and evaluation for structural, civil, geotechnical, materials, mechanical and electrical engineering for plant and facility modifications, engineering issues and special projects. The Division maintains WSSC Water's Geographic Information System, as well as providing internal surveying and property acquisition operations, including inter-agency and public geodetic control.  The Division is responsible for supporting WSSC Water’s efforts to provide safe drinking water and wastewater services by managing protection of the Commission's reservoirs and source watersheds, environmental assessments and enforcement of regulatory compliance programs, modeling of treatment processes and natural systems, and NPDES permits and grant efforts as well as being the technical liaison for research and environmental organizations.

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