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Water report doesnt mention magnesium

jueloo

Member
Joined
3 Aug 2008
Messages
69
hi all,

Just received a breakdown from my water board, but it doesn't list magnesium. Could this come under something else?
 
I think it comes under general hardness. The water companies often quote it in terms of equivalent CaCO3 but it's typically a combination of calcium, magnesium and a minority of others.
 
nope it doesnt mention GH either. It lists everything under the sun, except what I wanted to know - Mg & Ca.
 
Ok, only way I can think of showing you the report is copying&pasting it. The columns unfortunately dont stay lined up. Can you make any sense of this? Sorry 3 pages ends up being a long post!!

Samples Required %Compliance
with PCV
Concentration or Value (all samples) PCV Units
Parameter
--------------------------------------------------------------------------------

Total Legal Min. Mean. Max.

2,4-D 17 12 12 100.00 0.005 0.005 0.010 0.1 ug/l


Aldrin Total 17 4 4 100.00 0.001 0.001 0.001 0.03 ug/l


Aluminium Total 18 18 18 100.00 < 2.500 < 5.517 20.000 200 ug/l


< 0.280 5 ug/l
Antimony Total 4 4 4 100.00 < 0.280 < 0.280


Arsenic Total 4 4 4 100.00 < 0.170 < 0.273 0.400 10 ug/l


Atrazine 17 12 12 100.00 0.005 0.005 0.006 0.1 ug/l


Benazolin 17 4 4 100.00 0.004 0.004 0.008 0.1 ug/l


Boron Total 4 4 4 100.00 < 0.008 < 0.026 0.042 1 mg/l


Bromate 4 4 4 100.00 < 0.970 < 0.970 < 0.970 10 ug/l


Cadmium Total 4 4 4 100.00 < 0.008 < 0.009 0.012 5 ug/l


250 mg/l
Chloride 4 4 4 100.00 8.200 14.800 25.000


Chlorine Free 54 54 54 * 0.150 0.497 0.760 * mg/l


Chlorine Total 54 54 54 * 0.250 0.574 0.840 * mg/l


0.006 0.006 0.1 ug/l
Chlorothalonil 17 4 4 100.00 0.006


Chlortoluron 17 4 4 100.00 0.005 0.006 0.008 0.1 ug/l


Chromium Total 4 4 4 100.00 < 0.200 < 0.200 < 0.200 50 ug/l


Clopyralid 17 4 4 100.00 0.007 0.007 0.007 0.1 ug/l


Clostridium Perfringens (Welchii)
18 18 18 100.00 0.000 0.000 0.000 0 No./100ml


0.000 0.000 0 No./100ml
Coliform 54 54 54 100.00 0.000


Colonies 2 Day 37 C YEA 18 18 18 100.00 0.000 0.000 0.000 50 No./ml


Colonies 3 Days 22 C YEA 18 18 18 100.00 0.000 1.111 14.000 300 No./ml


Colour Filtered 18 18 18 100.00 < 0.880 < 0.905 < 1.000 20 mg/l Pt/Co scal


Conductivity 20 Deg. C 18 18 18 100.00 160.000 204.444 260.000 1500 uS/cm


Copper Total 4 4 4 100.00 0.002 0.012 0.032 2 mg/l


Cypermethrin 17 4 4 100.00 0.008 0.009 0.016 0.1 ug/l


0.1 ug/l
Diazinon Total 17 4 4 100.00 0.005 0.005 0.005


Notes : '*' no PCV for these parameters 'R' indicates relaxation in place
'F' indicates non-compliance % compliance after relaxations applied
Samples required are the annual requirement

--------------------------------------------------------------------------------

sched4_zon.rdf

Period : 01-JAN-10 to 30-JUN-10


Water Supply Zone : T105 MIDDLESBROUGH CENTRAL

Population for this zone : 43548


Samples Required %Compliance
with PCV
Concentration or Value (all samples) PCV Units
Parameter
--------------------------------------------------------------------------------

Total Legal Min. Mean. Max.

Dieldrin Total 17 4 4 100.00 0.002 0.002 0.002 0.03 ug/l


Diuron 17 12 12 100.00 0.004 0.004 0.004 0.1 ug/l


E.Coli 54 54 54 100.00 0.000 0.000 0.000 0 No./100ml


0.000 0 No./100ml
Enterococci 4 4 4 100.00 0.000 0.000


Fenpropimorph 17 4 4 100.00 0.006 0.006 0.006 0.1 ug/l


Fluoride Dissolved 4 4 4 100.00 0.061 0.081 0.120 1.5 mg/l


Glyphosate 17 12 12 100.00 0.010 0.010 0.010 0.1 ug/l


Heptachlor Epoxide Total 17 4 4 100.00 0.000 0.000 0.000 0.03 ug/l


Heptachlor Total 17 4 4 100.00 0.002 0.002 0.002 0.03 ug/l


Hydrogen ion 18 18 18 100.00 7.300 7.583 7.900 9.5 pH Value


200 ug/l
Iron Total 18 18 18 100.00 6.800 21.733 72.000


Isoproturon 17 12 12 100.00 0.005 0.005 0.005 0.1 ug/l


Lead Total 4 4 4 100.00 < 0.025 < 1.518 4.200 25 ug/l


0.004 0.008 0.1 ug/l
MCPA 17 4 4 100.00 0.004


MCPB 17 4 4 100.00 0.004 0.004 0.004 0.1 ug/l


Malathion Total 17 4 4 100.00 0.004 0.004 0.005 0.1 ug/l


Manganese Total 18 18 18 100.00 0.820 1.623 2.300 50 ug/l


Mecoprop 17 4 4 100.00 0.006 0.006 0.006 0.1 ug/l


Metaldehyde 17 12 12 100.00 0.006 0.009 0.022 0.1 ug/l


Nickel Total 4 4 4 100.00 1.400 1.750 2.000 20 ug/l


50 mg/l as NO3
Nitrate 4 4 4 100.00 2.900 3.725 4.200


Nitrate / Nitrite formula 4 4 4 100.00 < 0.057 < 0.074 < 0.084 1 mg/l


Nitrite 4 4 4 100.00 < 0.001 < 0.001 < 0.001 0.1 mg/l as NO2


< 0.012 < 0.012 0.5 mg/l as NH4
Nitrogen Ammoniacal 18 18 18 100.00 < 0.012


Odour Quantitative 9 9 9 100.00 0.000 0.000 0.000 1 Dil. No.


Pendimethalin 17 4 4 100.00 0.006 0.006 0.006 0.1 ug/l


Notes : '*' no PCV for these parameters 'R' indicates relaxation in place
'F' indicates non-compliance % compliance after relaxations applied
Samples required are the annual requirement

--------------------------------------------------------------------------------

sched4_zon.rdf

Period : 01-JAN-10 to 30-JUN-10


Water Supply Zone : T105 MIDDLESBROUGH CENTRAL

Population for this zone : 43548


Samples Required %Compliance
with PCV
Concentration or Value (all samples) PCV Units
Parameter
--------------------------------------------------------------------------------

Total Legal Min. Mean. Max.

Pesticides - Total 13 12 12 100.00 0.000 0.014 0.024 0.5 ug/l


Polynuclear Aromatic Hydrocarbon Total
4 4 4 100.00 0.000 0.000 0.000 0.1 ug/l


Propetamphos 17 4 4 100.00 0.004 0.004 0.004 0.1 ug/l


Propyzamide 17 4 4 100.00 0.004 0.004 0.008 0.1 ug/l


Selenium Total 4 4 4 100.00 < 0.310 < 0.310 < 0.310 10 ug/l


0.1 ug/l
Simazine 17 12 12 100.00 0.006 0.006 0.007


Sodium Total 4 4 4 100.00 5.800 9.475 15.000 150 mg/l


Sulphate Dissolved 4 4 4 100.00 45.000 52.250 57.000 250 mg/l


0.000 0.000 1 Dil. No.
Taste Quantitative 9 9 9 100.00 0.000


Triclopyr 17 4 4 100.00 0.005 0.005 0.005 0.1 ug/l


Trifluralin 17 12 12 100.00 0.008 0.008 0.008 0.1 ug/l


Trihalomethanes 4 4 4 100.00 22.400 31.900 45.900 100 ug/l


Turbidity 18 18 18 100.00 < 0.080 < 0.105 0.190 4 NTU
 
Hi all,
Water seems all right, the conductivity is relatively low, - min. 160 microS. mean 204, max. 260, nitrate levels are very low. The pH is quite high, but almost certainly from the chemicals added for control of "Plumbosolvency". http://openlearn.open.ac.uk/mod/oucontent/view.php?id=399252&section=1.4.11>. My suspicion would be that this is water from the Cow Green or similar reservoir in Upper Teesdale, and before treatment would have been very soft, clean water. Not bad at all for tap water, but almost certainly with very low natural magnesium levels.

cheers Darrel
 
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