Design System References

Color Palette

using color palettes from https://colorbrewer2.org/

Water features

Use the 4 or 6-class Blues (https://colorbrewer2.org/#type=sequential&scheme=PuBu&n=6) for water features, remove the ones that conflict with the color of the water features of the base map:

f1eef6

d0d1e6 -> watersheds?

a6bddb ->

74a9cf -> aquifers (striped)

2b8cbe -> flowlines

045a8d -> wells

Sample Points

Use the 6 or 8-class PuOr colors (orange -> white -> purple) https://colorbrewer2.org/#type=diverging&scheme=PuOr&n=6 to ratios for PFAS signatures

b35806

e08214

fdb863 -> normal samplepoints

fee0b6

d8daeb

b2abd2

8073ac

542788

Facilities

Use the 9-class Reds https://colorbrewer2.org/#type=sequential&scheme=Reds&n=9 as primary palette for facilities. As secondary, use the 9-class Purples https://colorbrewer2.org/#type=sequential&scheme=Purples&n=9 (only if no PFAS signatures are shown).

Additional References

https://www.epa.gov/geospatial/map-design-cartography-epa

https://github.com/palewire/usa-style-guides/raw/master/usgs/Page-Size_Illustration_Standards.pdf

https://github.com/palewire/usa-style-guides/blob/master/usgs/Page-Size_Illustration_Standards.pdf