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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 2012
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 252 202 218 N/A
Bicarbonate as HCO3, mg/l 307 246 266 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 148 36 42 150*
Calcium Hardness as CaCO3, mg/l 116 28 36 N/A
Magnesium as CaCO3, mg/l 32 8 10 N/A
Calcium as Ca, mg/l 46.4 11.2 12.8 60.0*
Color, C. U. (Color Units) 9 10 7 15*
Silica as SiO2, mg/l 25.6 26.2 26.0 N/A
Conductivity as µS/cm 587 646 649 N/A
Iron, Fe mg/l 0.25 0.08 0.06 0.300*
Potassium, K, mg/l 6.1 5.9 5.6 N/A
Copper, Cu, mg/l < 0.07 < 0.070 < 0.070 1.300^
Manganese, Mn mg/l 0.08 0.02 0.03 N/A
Phosphate as PO4, mg/l 0.47 1.14 1.21 5.00*
Chloride as Cl2, mg/l 72 137 111 250.0*
Fluoride, F, mg/l 0.11 0.9 0.93 2.00*
4.00^
Nitrate as NO3, mg/l 0.8 0.6 0.5 10.00^
Zinc, Zn, mg/l 0.01 0.05 0.04 5.000*
Chlorine (free CL2), mg/l 0.01 2.11 0.76 0.20@
4.00^
Lead, Pb, mg/l < 0.005 < 0.005 < 0.005 0.015^
Corrosiveness 0.088 -0.086 -0.706 N/A
pH 7.7 7.5 7.6 6.5-8.5#
pHs 7.6 8.4 8.3 N/A
Turbidity, NTU 0.45 0.15 0.47 1.0^
Total Suspended Solids, mg/l 0.3 0.3 0.3 N/A
Total Dissolved Solids, mg/l 284 313 314 500*
Sulfate as SO4, mg/l 0 0 0 250.0*
Sodium, Na, mg/l 45.126 150.082 135.344 250.00^
Sulfide as S, mg/l 0 00 0 N/A
Temperature (Deg. F-) 62.6° 60.8° 57.9° N/A
TOC (ppm) 2.87 1.69 1.67 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 9, 2012

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