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CAPE HATTERAS WATER PLANT
RAW, FINISHED & DISTRIBUTED TESTING

July 2008

  Anion
Well Water Raw

RO
Well Water Raw

Finished Water Quality Distributed
Water
Quality
MCL
P -  Alkalinity as CaCO3, mg/l 0 0 0 0 N/A
Total Alkalinity CaCO3, mg/l 320 280 60 60 N/A
Bicarbonate as HCO3, mg/l 150 300 74 76 N/A
Carbonate as CO3, mg/l 0 0 0 0 N/A
Hydroxide as OH, mg/l 0 0 0 0 N/A
Total Hardness as CaCO3, mg/l 280 2,540 62 64 150*
Calcium Hardness as CaCO3, mg/l 80 60 10 10 N/A
Magnesium as CaCO3, mg/l 180 2,540 30 30 N/A
Calcium as Ca, mg/l 50 340 30 30 60.0*
Color, C.U. (Color Units) 48 0 0 0 15*
Silica as SiO2, mg/l 8.01 22.00 0.012 0.013 N/A
Conductivity as µS/cm 725 17,770 512 514 N/A
Iron, Fe mg/l 0.360 0.029 0.010 0.011 0.300*
Potassium K, mg/l 7.88 8.70 1.00 1.01 N/A
Copper, Cu, mg/l < 0.070 < 0.070 < 0.070 < 0.070 1.300^
Manganese, Mn mg/l 0.048 0.150 0.008 0.007 0.050*
Phosphate as PO4, mg/l 0.24 0.23 1.22 1.15 5.00*
Chloride as Cl2, mg/l 70 5,465 110 110 250.0*
Fluoride, F, mg/l 0.35 0.28 1.02 1.01 2.00*
4.00^
Nitrate as NO3, mg/l 0 0 0 0 10.00^
Zinc, Zn, mg/l 0.722 0.220 0.110 0.110 5.000*
Chlorine (free CL2), mg/l 0.00 0.00 1.11 0.68 0.20@
4.00^
Lead as Pb, mg/l < 0.005 < 0.005 < 0.005 < 0.005 0.015^
Corrosiveness 0.22 0.35 1.48 1.29 N/A
pH 7.20 7.20 7.20 7.28 6.5-8.5#
pHs 7.42 7.48 8.55 8.32 N/A
Turbidity, NTU 0.11 0.23 0.10 0.10 1.0^
Total Suspended Solids, mg/l ----- ----- ----- ----- N/A
Total Dissolved Solids, mg/l 435 11,190 307 308 500.00*
Sulfate as SO4, mg/l 0.64 200.00 2.20 1.30 250.0*
Sodium as Na, mg/l (est.) 188 3,140 54 52 250.00^
Sulfide as S, mg/l 0 0 0 0 N/A

MCL - Maximum Contaminant Level     mg/L = parts per million (ppm)      N/A - Not Available; No Limit

* Recommended Maximum   @ Mandatory Minimum    ^ Mandatory Maximum     # Mandatory Range

Click Here For An Explanation For Each Of These Chemical Tests

Page last updated July 22, 2008

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