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comments on water analysis
- To: Aquatic Plants Digest <Aquatic-Plants at actwin_com>
- Subject: comments on water analysis
- From: "H. Hoekstra" <hugo at greed_nl>
- Date: Fri, 04 Jun 1999 00:33:09 +0100
- In-Reply-To: <199906021948.PAA01331 at acme_actwin.com>
Hello all,
I got a water analysis from the water company, and I would like your
comments on it, especially in relation to keeping aquatic plants, what
is already sufficiently available and what not? I guess iron is low.
Physical-chemical parameters
average temperature °Celcius 11,5
dissolved oxygen mg/l O2 10,0
turbidity factor FTE 0,13
pH 7,25
satiation index Sl 0,06
rest ß activity Bq/l <1
conductivity by 20° Celcius mS/m 36
oxidizability with KMnO4 mg/l O2 0,6
UV-extinction 254 nm m-1 2,6
Anorganic parameters
hydrogencarbonate mg/l HCO3 116
CO2 mg/l CO2 2,4
aggressive carbonic acid mg/l CO2 <0,5
Chloride mg/l Cl 46
Sulphate mg/l SO4 37
Sodium mg/l Na 22
Potassium mg/l K 1,2
Calcium mg/l Ca 50
Magnesium mg/l Mg 3,6
Total hardness mmol/l 1,4
°DH 7,8
Ammonium mg/l NH4 <0,01
Nitrogen mg/l NO2 <0,02
Nitrate mg/l NO3 0,2
Orthophosphate mg/l PO4 0,03
Silicic acid mg/l Si 6,5
Iron mg/l Fe 0,02
Manganese mg/l Mn <0,01
Am I right in the assumption that the KH is 1?
According to the water company the amount of chloride is neglectible,
but seems high against the maximum of 150 mg/l that the law permits...?
Also on a side note I read here law doesn't permit a pH lower than 7. Why
is that, is there something wrong with drinking acidic water?
Thanks !
Best regards,
Hugo Hoekstra