Credits
Fonts
Zilla Slab, by the Mozilla Foundation, under the SIL Open Font License 1.1 (license text).
Asap, by The Asap Project Authors, under the SIL Open Font License 1.1 (license text).
IBM Plex Sans, IBM Plex Sans Condensed and IBM Plex Mono, by IBM, under the SIL Open Font License 1.1 (license text), used in the share images and PDFs.
Photos (plant guide)
All are Creative Commons or public domain; none come from agency websites. Images are resized for the web. The same photos, each with its credit line, appear in the plant chapter of the Pond & Lakefront Owner's Handbook (PDF).
- Filamentous algae: Photo by Phonon.b, CC BY-SA 4.0, via Wikimedia Commons (file).
- Planktonic algae: Photo by Joyce Cory (docentjoyce on Flickr), CC BY 2.0, via Wikimedia Commons (file).
- Cyanobacteria (blue-green algae): Photo by NPS, Public domain, via Wikimedia Commons (file).
- Duckweed: Photo by Christian Fischer, CC BY-SA 3.0, via Wikimedia Commons (file).
- Watermeal: Photo by Stefan.lefnaer, CC BY-SA 4.0, via Wikimedia Commons (file).
- Coontail: Photo by Ryan Hodnett, CC BY-SA 4.0, via Wikimedia Commons (file).
- Elodea: Photo by Royonx, CC0, via Wikimedia Commons (file).
- Curly-leaf pondweed: Photo by Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, via Wikimedia Commons (file).
- Eurasian watermilfoil: Photo by Tigerente, CC BY 4.0, via Wikimedia Commons (file).
- Hydrilla: Photo by Yercaud-elango, CC BY-SA 4.0, via Wikimedia Commons (file).
- Brittle naiad: Photo by Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, via Wikimedia Commons (file).
- Chara (muskgrass): Photo by Stefan.lefnaer, CC BY-SA 4.0, via Wikimedia Commons (file).
- Spatterdock: Photo by Fritzflohrreynolds, CC BY-SA 3.0, via Wikimedia Commons (file).
- White water lily: Photo by Cbaile19, CC0, via Wikimedia Commons (file).
- Watershield: Photo by Ryan Hodnett, CC BY-SA 4.0, via Wikimedia Commons (file).
- Cattail: Photo by DidierFy, CC BY-SA 4.0, via Wikimedia Commons (file).
- Phragmites (common reed): Photo by Nefronus, CC BY-SA 4.0, via Wikimedia Commons (file).
- Purple loosestrife: Photo by DidierFy, CC BY-SA 4.0, via Wikimedia Commons (file).
- European water chestnut: Photo by Agnieszka Kwiecień, Nova, CC BY-SA 4.0, via Wikimedia Commons (file).
- Large-leaf pondweed: Photo by Edward G. Voss, USDA NRCS (Northeast Wetland Flora, 1995), Public domain, via Wikimedia Commons (file).
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Our own artwork
- Pond & Shore PA wordmark, cattail-and-ripple mark, favicon and app icons: Original work, WeldonPC. All rights reserved.
- Line icons (dock, riprap, shovel, carp, fish, beaker, dam, drop, cattail and interface icons): Original work, WeldonPC. All rights reserved.
- Contour-line header pattern: Original work, WeldonPC. All rights reserved.
- Share images (Open Graph cards, 1200 x 630, and month portrait cards, 1080 x 1350): Original work, WeldonPC. Plant photos keep their own licences.
- Sample page thumbnails of our PDFs (watermarked SAMPLE): Original work, WeldonPC. Plant photos inside keep their own licences.
- QR codes printed in the PDF products (links to lakepennsylvania.us pages): Original work, WeldonPC.
- Brand mark inside the PDF products and on share images: Original work, WeldonPC. All rights reserved.
Facts and sources
Pennsylvania Code; Pennsylvania DEP, Fish and Boat Commission, Department of Agriculture and DCNR; Penn State Extension; U.S. Army Corps of Engineers; USDA PLANTS; USGS; eCFR; Minnesota DNR (plant descriptions). Full list with dates: Sources & Verification.
Software
CodeIgniter 4 (MIT), TCPDF (LGPL), FPDI (MIT). Icons and the Pond & Shore PA wordmark were drawn for this site.