Computational Hydraulics International (CHI)

CHIVersion PCSWMM -Advanced Modeling Software

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Advanced modeling software for stormwater, wastewater, watershed and water distribution systems.

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Evaluate the effectiveness of Low Impact Development (LID), green infrastructure and other best management practices for reducing wet weather pollutant loadings. LIDs are integral to new development design and are also being widely retrofitted into existing developments.
Perform integrated catchment/watershed management modeling with ease, including constituent rural areas, river systems, urban sewer systems, treatment plants, ponds, LIDs and receiving waters. Plan, analyze, design and manage unified sewer systems integral with natural areas and drainage.
Generate accurate non-point source pollutant loadings for TMDL, NPDES, MS4, CMOM and related studies. PCSWMM provide tools that help design control strategies for managing polluted stormwater released to receiving waters – making it easier to design to meet water quality regulations.
Easily determine the size and configuration of effective detention ponds and their appurtenances for flood control and water quality protection. Ponds may be arbitrarily shaped and distributed around the catchment – in series, parallel or both – and may be operated according to arbitrary rules.
Design, model and analyze dual drainage systems for flood control in new, existing or combined developments. Surface flows routed overland (major systems such as roads, swales, street sags, storage areas) can easily and accurately be combined with underground flows (minor system, such as sewer infrastructure).
Collection systems may be unlimited in size and number of control devices. PCSWMM facilitates the design and analysis of control strategies for reducing bypasses and fully supports the processing, manipulation and conversion of, and calibration against, observed data.
Streamline the design and analysis of stormwater management control strategies for minimizing events such as combined sewer overflows, sanitary sewer overflows, water in basements, surcharging, street flooding and/or rainfall-dependent inflow and infiltration.
PCSWMM Real-Time* provides accurate near-term (2–3 hours) and generalized long-term (24+ hours) forecasting of rainfall, runoff, flows and water levels. These detailed real-time models can be leveraged for other uses, such as floodplain delineations, remediation studies and master planning.
* At additional cost — contact us.
Dynamically model natural channels in rural and urban watersheds, taking into account flooded structures, backwater effects, spatially-distributed and dynamic rainfalls, groundwater interflow and flood inundation. Computed results can be animated in two-dimensions and projected obliquely in Google Earth.
PCSWMM simulates dynamic storms with high spatial and temporal resolution. It fully supports the processing, calibration, manipulation and conversion of radar-rainfall data (e.g., rainfall disaggregation, discretization, transposition and more).
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  • COMPREHENSIVE
  • STREAMLINED
  • FLEXIBLE
  • UNLIMITED
  • EASY TO USE

The perfect platform for exploring your best ideas

PCSWMM will help improve your new water supply, drainage and green infrastructure design, floodplain delineation, sewer overflow mitigation, water quality and integrated catchment analysis, 1D-2D modeling – and much, much more. Easy to learn, PCSWMM expands with you as your confidence grows.

Dramatically streamline your workflow

Save a ton of time with smart and easy-to-use tools designed by engineers who use the software every day. With a high performance, stand-alone GIS engine at its core, you can efficiently analyze systems, synthesize, develop and prove models and make informed decisions.

Benefit from flexible, open software

PCSWMM is built to accommodate your existing software ecosystem – and with its open standard data formats, sharing your work with clients and colleagues is effortless. PCSWMM`s open source engine is far from a black box, so you can confidently work with transparent and trusted code.

Say goodbye to limits

With no restrictions on model size and complexity, PCSWMM is optimized to handle millions of time series data points and hundreds of thousands of entities. No matter how large or small your model, you`ll make effective use of all your data at a fraction of the cost of comparable software.
User-friendly and highly supported

PCSWMM`s design is incredibly intuitive and easy to use, allowing you to quickly focus on the engineering. And with unparalleled free educational resources, such as JWMM and OpenSWMM, comprehensive integrated training, and unlimited technical support from qualified professional engineers, you`ll be a star. Thousands of organizations throughout the world trust us with their water modeling requirements.