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Water Quality Facts

(Source: Piper, Robert G.,et. al. 1982. Fish Hatchery Management. US Department of the Interior, Fish and Wildlife Service, Washington D.C.)

Most schools conduct annual water quality analyses on their drinking water. This analysis can be used to assess the schools's water quality. All schools should conduct a water quality test before initiating the ASERP program. Utilize the table of acceptable water quality measures to determine if your school's water is suitable for incubating eggs. If measures exceed those recommended on the table, find an outside water source for your tank.


Dissolved Gases





Heavy Metals - Avoid heavy metals especially in poorly buffered waters


Ammonia - Upper limit = 0.0125 ppm (un-ionized)

*Note: 1.0 ppm = 1.0 mg/l

**Note: The Adopt-A-Salmon Family curriculum contains information on water quality with an activity for students in the April section.

U.S. Fish and Wildlife Service