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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.


August 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 254 190 216 N/A
Bicarbonate as HCO3, mg/l 310 232 263 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 154 64 88 150*
Calcium Hardness as CaCO3, mg/l 130 54 62 N/A
Magnesium as CaCO3, mg/l 24 10 26 N/A
Calcium as Ca, mg/l 52.0 21.6 24.8 60.0*
Color, C. U. (Color Units) 17 4 11 15*
Silica as SiO2, mg/l 26.7 29.1 28.7 N/A
Conductivity as µS/cm 604 676 658 N/A
Iron, Fe mg/l 0.25 0.06 0.09 0.300*
Potassium, K, mg/l 12.0 11.0 9.5 N/A
Copper, Cu, mg/l < 0.07 < 0.070 < 0.070 1.300^
Manganese, Mn mg/l 0.101 0.036 0.076 N/A
Phosphate as PO4, mg/l 0.49 0.89 1.03 5.00*
Chloride as Cl2, mg/l 83 123 108 250.0*
Fluoride, F, mg/l 0.17 0.93 0.98 2.00*
4.00^
Nitrate as NO3, mg/l 0.08 0.04 0.02 10.00^
Zinc, Zn, mg/l 0.08 0.09 0.10 5.000*
Chlorine (free CL2), mg/l 0.01 1.52 0.21 0.20@
4.00^
Lead, Pb, mg/l < 0.005 < 0.005 < 0.005 0.015^
Corrosiveness 0.1947 -0.3107 -0.3297 N/A
pH 7.7 7.7 7.5 6.5-8.5#
pHs 7.5 8.0 7.8 N/A
Turbidity, NTU 0.57 0.15 0.99 1.0^
Total Suspended Solids, mg/l 0.1 0.3 0.3 N/A
Total Dissolved Solids, mg/l 293 329 320 500*
Sulfate as SO4, mg/l 0 0 0 250.0*
Sodium, Na, mg/l 58.555 117.02 86.011 250.00^
Sulfide as S, mg/l 0 0 0 N/A
Temperature (Deg. F-) 67.0° 68.0°   73.0° N/A
TOC (ppm) 2.75 1.58 1.62 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 August 13, 2010

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