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Dare County Water Department 

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SKYCO WATER PLANT
RAW, FINISHED,& DISTRIBUTED ANALYSIS

Raw Water: Well water before any treatment
Finished Water: Treated water stored in the ground reservoir prior to delivery to customers.
Distributed Water: Product water after it has left our 2 MG storage tank.


January 2010
CHEMICAL WELL WATER
RAW
WELL WATER FINISHED DISTRIBUTED WATER QUALITY MCL
P - Alkalinity as CaCO3, mg/l 0 0 0 N/A
Total Alkalinity CaCO3, mg/l 260 140 190 N/A
Bicarbonate as HCO3, mg/l 317 171 232 N/A
Carbonate as CO3, mg/l 0 0 0 N/A
Hydroxide as OH, mg/l 0 0 0 N/A
Total Hardness as CaCO3, mg/l 160 40 40 150*
Calcium Hardness as CaCO3, mg/l 110 30 30 N/A
Magnesium as CaCO3, mg/l 50 10 10 N/A
Calcium as Ca, mg/l 44 12 12 60.0*
Color, C. U. (Color Units) 22 13 13 15*
Silica as SiO2, mg/l 30.0 31.4 26.9 N/A
Conductivity as µS/cm 648 761 643 N/A
Iron, Fe mg/l 0.19 0.09 0.05 0.300*
Potassium, K, mg/l 19.7 3.8 3.3 N/A
Copper, Cu, mg/l < 0.07 < 0.070 < 0.070 1.300^
Manganese, Mn mg/l 0.100 0.019 0.026 N/A
Phosphate as PO4, mg/l 0.31 1.27 1.37 5.00*
Chloride as Cl2, mg/l 86 175 104 250.0*
Fluoride, F, mg/l 0.12 1.18 1.20 2.00*
4.00^
Nitrate as NO3, mg/l 0.8 0.9 1.1 10.00^
Zinc, Zn, mg/l 0.03 0.05 0.05 5.000*
Chlorine (free CL2), mg/l 0.01 2.34 0.89 0.20@
4.00^
Lead, Pb, mg/l < 0.005 < 0.005 < 0.005 0.015^
Corrosiveness 0.16 -0.684 -0.877 N/A
pH 7.8 7.8 75.0 6.5-8.5#
pHs 7.6 3.5 8.4 N/A
Turbidity, NTU 0.77 0.41 55.00 1.0^
Total Suspended Solids, mg/l 0.3 0.0 0 N/A
Total Dissolved Solids, mg/l 314 370 311 500*
Sulfate as SO4, mg/l 0 0 0 250.0*
Sodium, Na, mg/l 30.27 142.97 120.26 250.00^
Sulfide as S, mg/l 0 0 0 N/A
Temperature (Deg. F-) 62.0° 60.0° 59.9° N/A
TOC (ppm) 3.19 1.25 1.14 N/A

MCL - Maximum Contaminant Level    mg/L - Milligrams Per Liter   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 on January 28, 2010

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