HEAD OF NECK RD

2003 Supplemental Report (Calendar Year 2002) Page 1
HEAD OF NECK RD
Radiological Compounds
Component Low Value High Value Avg. Value Number of Tests
Gross Alpha Activity pci/l NA NA NA 0
Gross Beta Activity pci/l NA NA NA 0
Cesium-137 pci/l NA NA NA 0
Lead-210 pci/l NA NA NA 0
Radon ND ND ND 4
Inorganic Compounds
Component Low Value High Value Avg. Value Number of Tests
Alkalinity, Total mg/l 14.0 36.0 27.4 6
Aluminum mg/l ND 0.02 ND 16
Ammonia, Free mg/l ND 0.06 0.03 11
Arsenic ug/l ND ND ND 8
Asbestos MFL NA NA NA 0
Barium mg/l ND 0.03 ND 8
Boron mg/l ND ND ND 8
Bromide mg/l ND ND ND 6
CO2, Calculated mg/l 8.2 25.9 13.3 6
Cadmium ug/l ND ND ND 8
Calcium mg/l 7.7 10.7 8.6 8
Chloride mg/l 4.5 19.5 10.4 6
Chromium ug/l ND ND ND 8
Cobalt-59 ug/l ND 0.5 ND 8
Color units ND ND ND 6
Copper mg/l ND 0.07 ND 16
Dissolved Solids, Total mg/l 45 85 61 6
Fluoride mg/l ND ND ND 6
Hardness, Total mg/l 30.9 39.0 33.3 8
Iron ug/l ND 271 168 16
Lead ug/l ND 5.1 1.2 16
Lithium ug/l ND 2.9 1.7 8
Magnesium mg/l 2.64 3.14 2.90 8
Manganese ug/l ND 55 18 16
Nickel ug/l ND 1.2 0.6 16
Nitrate mg/l ND 3.22 1.09 6
Perchlorate ug/l ND ND ND 6
Phosphate, Ortho mg/l ND 0.29 0.20 6
Phosphate, Total mg/l ND 0.61 0.29 16
pH units 6.1 6.9 6.6 6
Potassium mg/l 0.79 1.52 1.16 8
Silicon mg/l 5.4 7.3 6.3 8
Sodium mg/l 3.0 13.3 8.4 8
Specific Conductance umho/cm 90 154 116 12
Strontium-89 mg/l 0.04 0.07 0.06 8
Sulfate mg/l 5.0 14.2 9.0 6
Surfactants mg/l ND ND ND 6
Tin ug/l ND 2.2 0.5 8
Titanium ug/l ND ND ND 8
Turbidity NT units ND 0.64 ND 6
Vanadium ug/l ND ND ND 8
Zinc mg/l ND 0.04 ND 16
2003 Supplemental Report (Calendar Year 2002) Page 2
HEAD OF NECK RD
Synthetic Organic Compounds including Pesticides and Herbicides (may include data collected over last 2 years)
Component Low Value High Value Avg. Value Number of Tests
Alachlor ug/l ND ND ND 11
Aldicarb Sulfone ug/l ND ND ND 8
Aldicarb Sulfoxide ug/l ND ND ND 8
Atrazine ug/l ND ND ND 11
1, 2-Dibromoethane (EDB) ng/l ND ND ND 8
Dinoseb ug/l ND ND ND 6
Metalaxyl ug/l ND ND ND 11
Metolachlor ug/l ND ND ND 11
Metribuzin ug/l ND ND ND 11
Simazine ug/l ND ND ND 11
Tetrachloroterephthalic Acid (TCPA) ug/l ND ND ND 6
Volatile Organic Compounds
Component Low Value High Value Avg. Value Number of Tests
Bromodichloromethane ug/l ND ND ND 14
Bromoform ug/l ND ND ND 14
Dibromochloromethane ug/l ND ND ND 14
Chloroform ug/l ND 0.6 ND 14
Carbon Tetrachloride ug/l ND ND ND 14
Cis-1, 2-Dichloroethene ug/l ND ND ND 14
Dichlorodifluoromethane ug/l ND ND ND 14
1, 1-Dichloroethane ug/l ND ND ND 14
1, 2-Dichloroethane ug/l ND ND ND 14
1, 1-Dichloroethene ug/l ND ND ND 14
1, 2-Dichloropropane ug/l ND ND ND 14
Methyl-Tert-Butyl-Ether (MTBE) ug/l ND 1.6 0.6 14
Tetrachloroethene ug/l ND ND ND 14
Trans-1, 2-Dichloroethene ug/l ND ND ND 14
1, 1, 1-Trichloroethane ug/l ND ND ND 14
Trichloroethene ug/l ND ND ND 14
Trichlorofluoromethane (Freon 112) ug/l ND ND ND 14
1, 2, 3-Trichloropropane ug/l ND ND ND 14
1, 1, 2-Trichlorotrifluoroethane ug/l ND ND ND 14
Vinyl Chloride ug/l ND ND ND 14