Top Definition
"Primary Headwater Habitat" stream- area of watershed < 1 sq mi, pool depth below 40 cm, at least 200 ft in length.

They better not build a Wal-Mart over my freakin' primary headwater habitat (PHWH) stream. It'll totally mess up our drinking water lol!
by K Epps May 31, 2007
4 Words related to PHWH

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