Page 1 of 2 Update: 4/17/07
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
HUBBARD HILL - DERRY, NH
EPA # 0612090
VOLATILE ORGANIC CONTAMINANTS (b) (Units µg/L)
Analyte Result MCL Date Analyte Result MCL Date
1,1,1,2-Tetrachloroethane BDL NR 12/21/06 1,1,2-Trichloroethane BDL 5 12/21/06
1,1,2,2-Tetrachloroethane BDL NR 12/21/06 1,1-Dichloroethane BDL 7 12/21/06
1,1-Dichloroethane BDL NR 12/21/06 1,2,3-Trichlorobenzene BDL NR 12/21/06
1,1-Dichloropropene BDL NR 12/21/06 1,2,4-Trichlorobenzene BDL 70 12/21/06
1,2,3-Trichloropropane BDL NR 12/21/06 1,2-Dibromo - 3- chloropropane BDL 0.2 12/21/06
1,2,4-Trimethylbenzene BDL NR 12/21/06 1,2-Dichlorobenzene BDL 600 12/21/06
1,2-Dibromoethane BDL NR 12/21/06 1,2-Dichloropropane BDL 5 12/21/06
1,2-Dichloroethane BDL 5 12/21/06 1,3-Dichlorobenzene BDL NR 12/21/06
1,3,5-Trimethylbenzene BDL NR 12/21/06 1,4-Dichlorobenzene BDL 75 12/21/06
1,3-Dichloropropane BDL NR 12/21/06 2-Hexanone BDL NR 12/21/06
2,2-Dichloropropane BDL NR 12/21/06 Benzene BDL 5 12/21/06
Acetone BDL NR 12/21/06 Bromochloromethane BDL NR 12/21/06
Bromobenzene BDL NR 12/21/06 Carbon Disulfide BDL NR 12/21/06
Bromomethane BDL NR 12/21/06 Dibromomethane BDL NR 12/21/06
Chlorobenzene BDL 100 12/21/06 Diethyl ether BDL NR 12/21/06
Chloroethane BDL NR 12/21/06 Hexachlorobutadiene BDL NR 12/21/06
Chloromethane BDL NR 12/21/06 MIBK BDL NR 12/21/06
Dichlorodifluoromethane BDL NR 12/21/06 Methyl-t-butyl-ether BDL 13 12/21/06
Ethylbenzene BDL 700 12/21/06 Napthalene BDL NR 12/21/06
Isopropylbenzene BDL NR 12/21/06 Tetrachloroethene BDL 5 12/21/06
Methyl ethyl ketone BDL NR 12/21/06 Tetrahydrofuran BDL NR 12/21/06
Methylene chloride BDL 5 12/21/06 Trichloroethene BDL 5 12/21/06
Styrene BDL 100 12/21/06 Vinyl chloride BDL 2 12/21/06
Tetrachloromethane BDL NR 12/21/06 cis-1, 3-Dichloropropene BDL NR 12/21/06
Toluene BDL 1000 12/21/06 n-Butylbenzene BDL NR 12/21/06
Trichlorofluromethane BDL NR 12/21/06 o-Chlorotoluene BDL NR 12/21/06
cis-1, 2-Dichloroethene BDL 70 12/21/06 p-Chlorotoluene BDL NR 12/21/06
m/p - Xylenes BDL NR 12/21/06 sec Butylbenzene BDL NR 12/21/06
n-Proplybenzene BDL NR 12/21/06 trans-1, 2-Dichloroethene BDL 100 12/21/06
o-Xylene BDL NR 12/21/06  TRIHALOMETHANES 
p-Isopropyltoluene BDL NR 12/21/06 Bromodichloromethane 1.7 80 12/21/06
tert-Butylbenzene BDL NR 12/21/06 Bromoform <0.5 80 12/21/06
trans-1, 3-Dichloropropene BDL NR 12/21/06 Dibromochloromethane  1.5 80 12/21/06
1,1,1-Trichloroethane BDL 200 12/21/06 Chloroform  1 80 12/21/06
Total Trihalomethanes  4.2 80 12/21/06
SYNTHETIC ORGANIC CONTAMINANTS (b) (Units µg/L)
2,4,5-TP (Silvex)  BDL 50 10/20/05 Dinoseb BDL 7 10/20/05
2,4-D BDL 70 10/20/05 Endrin BDL 2 10/20/05
3-Hydorxycarbofuran BDL NR 10/20/05 Ethylene dibromide (EDB) BDL 0.05 10/20/05
Alachlor BDL 2 10/20/05 Fluorene BDL NR 10/20/05
Aldicarb BDL NR 10/20/05 Glyphosate BDL 700 10/20/05
Aldicarb Sulfone BDL NR 10/20/05 Heptachlor BDL 0.4 10/20/05
Aldicarb Sulfoxide BDL NR 10/20/05 Heptachlor Epoxide BDL 0.2 10/20/05
Aldrin BDL NR 10/20/05 Hexachlorobenzene BDL 1 10/20/05
Atrazine BDL 3 10/20/05 Hexachlorocyclopentadiene BDL 50 10/20/05
Benzo (A) pyrene BDL NR 10/20/05 Lindane BDL 0.2 10/20/05
Butachlor BDL NR 10/20/05 Metholachlor BDL NR 10/20/05
Carbaryl BDL NR 10/20/05 Methomyl BDL NR 10/20/05
Carbofuran BDL 40 10/20/05 Methoxychlor BDL 40 10/20/05
Chlordane BDL 2 10/20/05 Metribuzin BDL NR 10/20/05
Di (2-ethylhexyl) adipate BDL NR 10/20/05 Oxamyl (Vydate) BDL 200 10/20/05
Di (2-Ethylhexyl) phthalate BDL 6 10/20/05 Pentachlorophenol BDL 1 10/20/05
Dibromochloropropane (DBCP) BDL NR 10/20/05 Picloram BDL 500 10/20/05
Dicamba BDL NR 10/20/05 Propachlor BDL NR 10/20/05
Dieldrin BDL NR 10/20/05 Simazine BDL 4 10/20/05
Toxaphene BDL 3 10/20/05
Page 2 of 2
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
HUBBARD HILL - DERRY, NH
EPA # 0612090
INORGANIC CONTAMINANTS (b) SECONDARY CONTAMINANTS (b) - AESTHETIC
Analyte Results MCL Date Analyte Results SMCL Date
Antimony (µg/L) < 2 6 10/20/05 Chloride (mg/L) 23 250 10/20/05
Arsenic (µg/L) <2 10 10/20/05 Fluoride (mg/L) 0.97 2 10/20/05
Barium (mg/L) < 0.01 2 10/20/05 Iron (µg/L) 53 300 10/20/05
Beryllium (µg/L) < 2 4 10/20/05 Manganese (µg/L) 13 50 10/20/05
Cadmium (µg/L) < 2 5 10/20/05 pH (Units) 7.11 6.5 – 8.5 10/20/05
Chromium (µg/L) < 10 100 10/20/05 Silver (µg/L) < 4 100 10/20/05
Cyanide (µg/L) <10 200 10/20/05 Sodium (mg/L) 27 100-250 10/20/05
Fluoride (mg/L) 0.97 4 10/20/05 Sulfate (mg/L) 13.1 250 10/20/05
Mercury (µg/L) < 0.2 2 10/20/05 Zinc (mg/L) 0.05 5 10/20/05
Nickel (µg/L) < 10 100 10/20/05
Nitrate-N (mg/L) <0.2 10 12/4/06 RADIOLOGICAL CONTAMINANTS (b)
Nitrite-N (mg/L) < 0.05 1 10/20/05 Analyte (Units) Results MCL Date
Selenium (µg/L) < 5 50 10/20/05 Adjusted Gross Alpha (pCi/L) <2.9 15 12/4/06
Thallium (µg/L) < 1 2 10/20/05 Radon Gas (pCi/L) 2430 None 4/19/07
Uranium (ug/L) 2.9 30 12/4/06
Radium 226 <0.2 5 12/4/06
Radium 228  <0.5 5 12/4/06
FIRST DRAW LEAD AND COPPER (a)
Analyte Results AL Date
Lead (µg/L) 90th percentile sample <5 15 2/13/07 UNREGULATED CONTAMINANTS (b)
Copper (mg/L) 90th percentile sample 0.3 1.3 2/13/07 Analyte (Units) Results Date
Alkalinity as CaCO3 (mg/L) 50.7 10/20/05
Microbiological Contaminants (a) Results MCL Date Calcium (mg/L) 12.3 10/20/05
Total Coliform Absent < 1/month Monthly Hydrogen Sulfide (mg/L) 0.09 10/20/05
E. coli Absent Absent Monthly Magnesium (mg/L) < 1 10/20/05
Chlorine Residual (mg/L) 0.1-0.6 <4.0 Weekly Specific Conductance (umhos/cm2) 213 10/20/05
Total Hardness as CaCO3 (mg/L) 30.7 10/20/05
KEY TO ABBREVIATIONS
Text Box: AL Action Level - The concentration of a contaminant which, if exceeded triggers treatment of or other requirements which a water system must follow. MCL Maximum Contaminant Level - The highest level of a contaminant that is allowed in drinking water. SMCL Secondary Maximum Contaminant Level - The highest level of a contaminant that affects the aesthetic characteristics ( taste, odor, or color) of drinking water. NR Not Regulated - Contaminants test for but not regulated by the State or EPA. (a) samples taken from the distribution system. (b) samples taken from the distribution entry point. mg/L milligrams per Liter or parts per million. µg/L micrograms per Liter or parts per billion. pCi/L picocuries per Liter (measure of radioactivity) N/A Not Applicable nd not detected BDL Below Detection Level
Text Box: If you have any questions about this report, or about your water quality, please call Gary Tetley, Water Quality Manager, at 1-603-913-2378 or 1-800-553-5191. Additional information about contaminants and their potential health effects can be obtained by calling the Environmental Protection Agency's Safe Drinking Water Hotline 1-800-426-4791.