California PUBLIC HEALTH GOAL FOR NICKEL IN DRINKING WATER (2001) – Long posts

California PUBLIC HEALTH GOAL FOR NICKEL IN DRINKING WATER (2001)

Robert

1 week ago

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I take being emperor seriously but I feel like I'm the only one.

@33MHz on Pnut

A public health goal (PHG) of 0.012 mg/L (12 μg/L or 12 ppb) is developed for soluble nickel compounds in drinking water. The evaluation is focused on soluble nickel as it is anticipated that the most prevalent exposure through drinking water will be to this form of nickel.

...

[U.S. EPA] had promulgated a maximum contaminant level goal (MCLG) of 0.1 mg/L and a maximum contaminant level (MCL) of 0.1 mg/L (100 ppb) for nickel in 1992. However, the MCL and MCLG for nickel were remanded on February 9, 1995. This means that while U.S. EPA is reconsidering the limit on nickel, there is currently no U.S. EPA limit on the amount of nickel in drinking water (U.S. EPA, 1999)

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@33MHz
They have a recommendation "based on latest research" (more strict than the other two evaluations), which identifies chloroform, nickel, uranium, and arsenic as too high. But we're talking parts per billion there. Nickel is pretty high for them tho.
@33MHz
Will look into them.

No lead detected at all. But I knew I don't have any lead pipes. I do have a galvanized steel supply line, which is a no-no.
@33MHz
California in 2001 recommended lower nickel in my water than the EPA currently does (EPA doesn't have particular guidance since '95, maybe). Seems that I would want the nickel in my plant water. 😌

https://longpo.st/p/1381486