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High Phosphate levels from tap
I recently e-mailed my local water authority about the phosphate,
nitrate, etc. levels in my tap water. He replied:
Total phosphorous: .7 mg/L
Nitrate: .4 mg/L
Iron: <50 ug/L
Flouride: .9 mg/L
Sodium: 4500 ug/L
Zinc: 120 ug/L
Is there anything here to be concerned about?
I have measured the phosphate levels in my water to be in excess of 5 ppm,
much higher than .7 ppm. Is there a difference between total phosphorous and
phosphate? If so, is there an equation to convert the reading to phosphate?
Also, what are ug/L? I am assuming that means micrograms per Liter. (.000001