EPANET
The Water Distribution System Hydraulic and Water Quality Analysis Toolkit.
https://github.com/OpenWaterAnalytics/EPANET
Category: Natural Resources
Sub Category: Water Supply and Quality
Keywords
environmental-engineering hydraulics water-distribution
Keywords from Contributors
water epanet ord hydrology stormwater swmm5 epanet-matlab-toolkit water-distribution-networks water-quality
Last synced: about 15 hours ago
JSON representation
Repository metadata
The Water Distribution System Hydraulic and Water Quality Analysis Toolkit
- Host: GitHub
- URL: https://github.com/OpenWaterAnalytics/EPANET
- Owner: OpenWaterAnalytics
- License: mit
- Created: 2014-09-18T00:04:36.000Z (about 12 years ago)
- Default Branch: dev
- Last Pushed: 2026-09-29T12:46:38.000Z (7 days ago)
- Last Synced: 2026-10-01T21:35:39.472Z (4 days ago)
- Topics: environmental-engineering, hydraulics, water-distribution
- Language: C
- Homepage:
- Size: 11.5 MB
- Stars: 422
- Watchers: 71
- Forks: 252
- Open Issues: 52
- Releases: 10
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Authors: AUTHORS
README.md
OWA-EPANET
Build Status
DESCRIPTION
EPANET is an industry-standard program for modeling the hydraulic and water quality behavior of water distribution system pipe networks. The EPANET Programmer's Toolkit is a library of functions (or API) written in C that allow programmers to customize the use of EPANET's solution engine for their own applications. Both EPANET and its toolkit were originally developed by the U.S. Environmental Protection Agency (USEPA). If you are interested in using/extending the EPANET engine and its API for academic, personal, or commercial use, then you've come to the right place. Read more about EPANET on Wikipedia. (Please note that this project covers only the EPANET hydraulic and water quality solver engine, not the graphical user interface.)
INSTALLATION
Instructions for building the OWA-EPANET Toolkit's function library as well as its command line executable from the source files in this repository can be found here.
USAGE
See the full documentation of the OWA-EPANET API, along with examples of how to use the toolkit for water distribution system analysis. Additional information may be found on this project's Wiki.
CONTRIBUTING
Everyone is welcome to participate in this project. Whether you are helping others to resolve issues, reporting a new issue that hasn't yet been discovered, suggesting a new feature that would benefit your workflow, or writing code (or tests, or scripts, or ...), we value your time and effort. The path for contribution starts with the Issues. Look around at open Issues and the conversation around them, get engaged by commenting on an outstanding Issue or creating a new one. If you want to contribute code, it helps to give the community time to discuss the ideas you present and offer constructive feedback. Once you get a clear path forward, Fork this repo to your own account. Make your commits on your dev branch (or one based on dev). Once you are finished, you can open a Pull Request to test the code and discuss merging your changes back into the community repository. A step-by-step tutorial on how to contribute to OWA-EPANET using GitHub is also available.
CREDITS
The Open Water Analytics (OWA) Community is an international group of EPANET developers and users, whose objective is to provide group interaction and coordinated development of the EPANET codebase, to ensure that important new user interface and algorithmic features are identified and that these features progress efficiently from prototype code to production implementations. OWA is actively maintaining OWA-EPANET, a community-supported branch of USEPA EPANET, since May 2014. The full list of individuals contributing to this project can be found here.
DISCLAIMER
Although OWA is not formally affiliated with nor endorsed by USEPA, this project has been a collaborative effort between the two that builds upon and extends the USEPA’s legacy EPANET 2.0 code base. For the last "official" release of EPANET please go to the USEPA website.
For more general community discussion of the project, please go to OWA Discussions.
Owner metadata
- Name: Open Water Analytics
- Login: OpenWaterAnalytics
- Email:
- Kind: organization
- Description:
- Website: http://wateranalytics.org
- Location:
- Twitter:
- Company:
- Icon url: https://avatars.githubusercontent.com/u/2392819?v=4
- Repositories: 22
- Last ynced at: 2026-10-04T22:32:36.076Z
- Profile URL: https://github.com/OpenWaterAnalytics
GitHub Events
Total
- Create event: 24
- Delete event: 30
- Fork event: 30
- Issue comment event: 179
- Issues event: 83
- Pull request event: 63
- Pull request review event: 1
- Push event: 57
- Release event: 4
- Watch event: 58
Last Year
- Create event: 6
- Delete event: 5
- Fork event: 7
- Issue comment event: 27
- Issues event: 10
- Pull request event: 4
- Push event: 17
- Release event: 1
- Watch event: 9
Committers metadata
Last synced: 1 day ago
Total Commits: 1,179
Total Committers: 43
Avg Commits per committer: 27.419
Development Distribution Score (DDS): 0.692
Commits in past year: 35
Committers in past year: 11
Avg Commits per committer in past year: 3.182
Development Distribution Score (DDS) in past year: 0.6
| Name | Commits | |
|---|---|---|
| Michael Tryby | t****l@e****v | 363 |
| Lew Rossman | L****n@c****m | 291 |
| Sam Hatchett | s****t@g****m | 159 |
| Elad Salomons | e****s@g****m | 117 |
| Marios S. Kyriakou | m****k@g****m | 71 |
| Luke Butler | l****r@g****m | 24 |
| Sam Hatchett | s****t@x****m | 16 |
| Demetrios G. Eliades | e****t@g****m | 14 |
| James Uber | j****m@c****m | 13 |
| 0tkl | t****g@g****m | 12 |
| Tom Taxon | t****n@a****v | 8 |
| Maurizio Cingi | m****2@g****m | 8 |
| Sam Hatchett | s****t@x****m | 6 |
| Elad Salomons | e****s@x****m | 5 |
| André Artelt | a****t@t****e | 5 |
| Bryant E. McDonnell | b****l@g****m | 5 |
| Will Furnass | w****l@t****k | 5 |
| JinduanChen | j****c@g****m | 5 |
| mariosmsk | m****k@m****m | 4 |
| Steffen Macke | s****n@s****e | 4 |
| mickey | h****o@g****m | 4 |
| AngelaMarchi | a****i@a****u | 3 |
| Samuel Becker | d****v@a****g | 3 |
| Markus Sunela | 3****o | 3 |
| james uber | j****r@x****m | 3 |
| Abel Heinsbroek | m****l@a****l | 3 |
| chrisgs | c****6@h****m | 3 |
| Dennis | 6****s | 3 |
| Feng Shang | f****g | 2 |
| Oscar Vegas Niño | o****9@g****m | 2 |
| and 13 more... | ||
Committer domains:
- xylem.com: 3
- epa.gov: 3
- aowis.org: 2
- adelaide.edu.au: 2
- gls.co.za: 1
- uni-bielefeld.de: 1
- llnl.gov: 1
- abelheinsbroek.nl: 1
- sdteffen.de: 1
- mariosmsk.com: 1
- thearete.co.uk: 1
- techfak.de: 1
- xyleminc.com: 1
- anl.gov: 1
- citilogics.com: 1
- cinci.rr.com: 1
Issue and Pull Request metadata
Last synced: 1 day ago
Total issues: 489
Total pull requests: 484
Average time to close issues: 9 months
Average time to close pull requests: 17 days
Total issue authors: 100
Total pull request authors: 48
Average comments per issue: 3.73
Average comments per pull request: 2.35
Merged pull request: 375
Bot issues: 0
Bot pull requests: 0
Past year issues: 24
Past year pull requests: 24
Past year average time to close issues: 2 months
Past year average time to close pull requests: 12 days
Past year issue authors: 16
Past year pull request authors: 12
Past year average comments per issue: 3.92
Past year average comments per pull request: 0.88
Past year merged pull request: 14
Past year bot issues: 0
Past year bot pull requests: 0
Top Issue Authors
- LRossman (107)
- michaeltryby (67)
- samhatchett (59)
- eladsal (45)
- Mariosmsk (21)
- lbutler (17)
- allenmlowe (13)
- AbelHeinsbroek (13)
- jamesuber (10)
- milad-ghiami (7)
- mauriziocingi (7)
- eldemet (6)
- 0tkl (4)
- csweetapple (4)
- goanpeca (3)
Top Pull Request Authors
- LRossman (177)
- michaeltryby (64)
- Mariosmsk (52)
- samhatchett (41)
- eladsal (25)
- lbutler (16)
- AbelHeinsbroek (10)
- eldemet (9)
- aowis-becker (8)
- zannads (6)
- bradleyjeck (6)
- 0tkl (6)
- jamesuber (5)
- AngelaMarchi (5)
- mauriziocingi (5)
Top Issue Labels
- bug (41)
- Request For Input (40)
- enhancement (30)
- difficulty:easy (15)
- help wanted (15)
- Net builder (10)
- documentation (10)
- Roadmap (9)
- question (7)
- testing (3)
- check-for-bug (2)
- Need More Info (1)
- awaiting-PR (1)
- inp-file (1)
Top Pull Request Labels
- enhancement (18)
- testing (5)
- Request For Input (2)
- documentation (2)
- bug (1)
- difficulty:easy (1)
- Net builder (1)
Package metadata
- Total packages: 5
- Total downloads: unknown
- Total dependent packages: 0 (may contain duplicates)
- Total dependent repositories: 0 (may contain duplicates)
- Total versions: 45
proxy.golang.org: github.com/OpenWaterAnalytics/EPANET
- Homepage:
- Documentation: https://pkg.go.dev/github.com/OpenWaterAnalytics/EPANET#section-documentation
- Licenses: mit
- Latest release: v2.3.5+incompatible (published 8 months ago)
- Last Synced: 2026-10-04T15:01:51.735Z (1 day ago)
- Versions: 9
- Dependent Packages: 0
- Dependent Repositories: 0
-
Rankings:
- Dependent repos count: 1.622%
- Average: 4.057%
- Dependent packages count: 6.492%
proxy.golang.org: github.com/openwateranalytics/epanet
- Homepage:
- Documentation: https://pkg.go.dev/github.com/openwateranalytics/epanet#section-documentation
- Licenses: mit
- Latest release: v2.3.5+incompatible (published 8 months ago)
- Last Synced: 2026-10-04T15:01:51.907Z (1 day ago)
- Versions: 9
- Dependent Packages: 0
- Dependent Repositories: 0
-
Rankings:
- Dependent repos count: 1.622%
- Average: 4.057%
- Dependent packages count: 6.492%
proxy.golang.org: github.com/openWaterAnalytics/EPANET
- Homepage:
- Documentation: https://pkg.go.dev/github.com/openWaterAnalytics/EPANET#section-documentation
- Licenses: mit
- Latest release: v2.3.5+incompatible (published 8 months ago)
- Last Synced: 2026-10-04T15:01:51.877Z (1 day ago)
- Versions: 9
- Dependent Packages: 0
- Dependent Repositories: 0
-
Rankings:
- Dependent packages count: 4.262%
- Average: 4.408%
- Dependent repos count: 4.553%
proxy.golang.org: github.com/openwateranalytics/EPANET
- Homepage:
- Documentation: https://pkg.go.dev/github.com/openwateranalytics/EPANET#section-documentation
- Licenses: mit
- Latest release: v2.3.5+incompatible (published 8 months ago)
- Last Synced: 2026-10-04T15:01:51.965Z (1 day ago)
- Versions: 9
- Dependent Packages: 0
- Dependent Repositories: 0
-
Rankings:
- Dependent packages count: 4.262%
- Average: 4.408%
- Dependent repos count: 4.553%
proxy.golang.org: github.com/OpenWaterAnalytics/epanet
- Homepage:
- Documentation: https://pkg.go.dev/github.com/OpenWaterAnalytics/epanet#section-documentation
- Licenses: mit
- Latest release: v2.3.5+incompatible (published 8 months ago)
- Last Synced: 2026-10-04T15:01:50.379Z (1 day ago)
- Versions: 9
- Dependent Packages: 0
- Dependent Repositories: 0
-
Rankings:
- Dependent packages count: 5.464%
- Average: 5.647%
- Dependent repos count: 5.83%
Dependencies
- epanet_output *
- header_detail_footer >=2.3
- nrtest >=0.2.0
- numpy >=1.7.0
- nrtest >=0.2.3
- nrtest >=0.2.3
- actions/checkout v1 composite
- actions/upload-artifact v2 composite
- actions/checkout v2 composite
- actions/upload-artifact v2 composite
- actions/checkout v2 composite
- actions/upload-artifact v2 composite
- actions/checkout v4 composite
- actions/upload-artifact v4 composite
Score: -Infinity