Orth Technical Services, LLC


The following list of projects are samples of the types of projects that have been performed by our staff.  These projects may represent current projects or past experience.
  • Wilmington Delaware - Detailed Model
  • Hamilton Ontario - All Pipes Model
  • Tulsa Oklahoma - Model Quality Review
  • Oklahoma City, Oklahoma - Model Quality Review
  • Arlington Texas - Collection System Model Master Plan
  • Mesquite Texas - Sanitary Model Update
  • Springdale Arkansas - Sanitary System Model Master Plan
  • SAWS (San Antonio Water System) - East Basin Master Plan Model
  • SAWS - Central Basin Master Plan Model
  • SAWS - West Basin Model Peer Review
  • Sanitation District No. 1 - North Central Kentucky - Field Data Collection and Model Build

 City of Wilmington Delaware - detailed model of Interceptor 'A' and Interceptor 'B'
  • 581,746 linear feet of conduit
  • 2,936 junctions 
  • 4,343 acres of sub-catchment area
  • 19 CSO outfall in the detailed model area
This model was developed from various data sources including a ESRI geodatabase, record drawings, field inspections and surveys, as well as legacy trunk-line models in SWMM and Mike Urban formats.  The scope of the project was to incorporate all pipes within Interceptors 'A' and 'B' as well as the trunk-line network for the entire collection system.  Following is a screen print showing pervious/impervious hydrology parameterization for a small region of the combined system drainage area.

City of Hamilton Ontario - Detailed model development
  • 1,838,566 meters of conduit
  • 14,187 hectares separate sanitary catchment area
  • 4,979 hectares combined sanitary catchment area
  • 570,744 population
  • 30 CSO outfalls

The scope of this project included a detailed Mike Urban model of all pipes within the collection system including separate sanitary, combined, relief, and separate storm with outfall to combined system.  The data conversion effort included the manipulation of legacy trunk-line model, GIS data, HANSEN asset management system, and field survey data.

The images below depict the "trunk-line" model (left) and "all pipes" model (right)