PCSWMM

subscription (annual per-seat) Engineer & Analyze

Advanced stormwater, wastewater, watershed, and water distribution modeling software by Computational Hydraulics International (CHI) -- built on the EPA SWMM5 engine with a powerful GIS interface, 1D/2D hydraulic modeling, intelligent scenario management, model calibration tools, and green infrastructure/LID design; used worldwide by engineering consultants, municipalities, and utilities for drainage design, floodplain mapping, CSO/SSO analysis, and water quality modeling.

Agent-hostile
2.6 /5 composite score
C1 4/5 reflects published annual pricing from USD 1,600 to USD 4,400 plus a 30-day trial, and RF2 keeps C2 1/5 because no public REST API or CLI is documented for the desktop application. C4 3/5 reflects INP, SHP, CSV, DXF, and DWG workflows, and C5 2/5 reflects EPA SWMM5, EPA EPANET2, ArcGIS, and QGIS integration.
Situational

Rubric Scorecard

How we grade →

Criterion Score Evidence
Value for the price 4/5 subscription (annual per-seat), from $1600 Source →
Agent Friendliness 1/5 API: none (no documented REST API or CLI; desktop-only .NET application supporting the SWMM5 engine)
Ease of adoption 3/5 desktop-install, moderate learning curve
Portability & lock-in 3/5 5 file formats
Interoperability 2/5 4 integrations

Pricing

Modelsubscription (annual per-seat)
Entry price$1600
Free tierno
Free viewerno
Trialyes
Billing unitper-seat
TiersProfessional ($1600), Professional 2D ($2400), Enterprise ($4400)
Visit PCSWMM →

How we verified this: we checked PCSWMM against its live site and an independent source — usf.edu. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-05.

Evidence

File formats

FormatDirectionSupport
INP native full -- SWMM .inp format
SHP both full -- ESRI Shapefile GIS integration
CSV both full
DXF export full
DWG import partial

Integrations

ArcGIS (native) QGIS (middleware) EPA SWMM5 (native) EPA EPANET2 (native)

Adoption

Deploymentdesktop-install
Self-serve signupyes
Learning curvemoderate

Sources

Pricing

Alternatives in Hydraulic & Process Simulation

EPA SWMM
Free, public-domain stormwater, wastewater, and combined sewer system simulation model by the US Environmental Protection Agency -- dynamic hydrology-hydraulic-water quality simulation for single-event or continuous modeling of rainfall-runoff, pipe/channel routing, green infrastructure/LID controls, and pollutant loads; the industry-standard computational engine used worldwide for drainage design, CSO/SSO mitigation, floodplain mapping, and regulatory compliance (NPDES, CMOM, TMDL).
3.4/5
EPA EPANET
Free, public-domain water distribution system modeling software by the US Environmental Protection Agency -- performs extended-period simulation of hydraulic and water-quality behavior within pressurized pipe networks (pipes, pumps, valves, tanks), tracking flow, pressure, water age, chlorine residuals, and contaminant transport; provides a C Programmer's Toolkit (DLL with 50+ functions) for custom integration; the industry-standard computational engine underlying most commercial water-distribution modeling packages worldwide.
3.4/5
Autodesk InfoWorks ICM
Integrated catchment modeling software for stormwater, wastewater, and flood network analysis -- 1D/2D hydraulic and hydrologic simulation, cloud or local compute, collaborative scenario management, and rule-based network design for sewer and stormwater engineers at utilities and engineering consultancies.
3.0/5
Bentley WaterGEMS
Water distribution system modeling and simulation software for hydraulic analysis, water quality modeling, fire flow analysis, energy management, and pipe network calibration -- part of Bentley's OpenFlows portfolio, serving municipal water utilities and engineering consultants.
2.8/5

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