Page 1 of 2 Update: 4/10/07
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
DREW WOODS - DERRY, NH
EPA # 0612150
VOLATILE ORGANIC CONTAMINANTS (b) (Units µg/L)
Analyte Result MCL Date Analyte Result MCL Date
1,1,1,2-Tetrachloroethane BDL NR 9/27/06 1,1,2-Trichloroethane BDL 5 9/27/06
1,1,2,2-Tetrachloroethane BDL NR 9/27/06 1,1-Dichloroethane BDL 7 9/27/06
1,1-Dichloroethane BDL NR 9/27/06 1,2,3-Trichlorobenzene BDL NR 9/27/06
1,1-Dichloropropene BDL NR 9/27/06 1,2,4-Trichlorobenzene BDL 70 9/27/06
1,2,3-Trichloropropane BDL NR 9/27/06 1,2-Dibromo - 3- chloropropane BDL 0.2 9/27/06
1,2,4-Trimethylbenzene BDL NR 9/27/06 1,2-Dichlorobenzene BDL 600 9/27/06
1,2-Dibromoethane BDL NR 9/27/06 1,2-Dichloropropane BDL 5 9/27/06
1,2-Dichloroethane BDL 5 9/27/06 1,3-Dichlorobenzene BDL NR 9/27/06
1,3,5-Trimethylbenzene BDL NR 9/27/06 1,4-Dichlorobenzene BDL 75 9/27/06
1,3-Dichloropropane BDL NR 9/27/06 2-Hexanone BDL NR 9/27/06
2,2-Dichloropropane BDL NR 9/27/06 Benzene BDL 5 9/27/06
Acetone BDL NR 9/27/06 Bromochloromethane BDL NR 9/27/06
Bromobenzene BDL NR 9/27/06 Carbon Disulfide BDL NR 9/27/06
Bromomethane BDL NR 9/27/06 Dibromomethane BDL NR 9/27/06
Chlorobenzene BDL 100 9/27/06 Diethyl ether BDL NR 9/27/06
Chloroethane BDL NR 9/27/06 Hexachlorobutadiene BDL NR 9/27/06
Chloromethane BDL NR 9/27/06 MIBK BDL NR 9/27/06
Dichlorodifluoromethane BDL NR 9/27/06 Methyl-t-butyl-ether BDL 13 9/27/06
Ethylbenzene BDL 700 9/27/06 Napthalene BDL NR 9/27/06
Isopropylbenzene BDL NR 9/27/06 Tetrachloroethene BDL 5 9/27/06
Methyl ethyl ketone BDL NR 9/27/06 Tetrahydrofuran BDL NR 9/27/06
Methylene chloride BDL 5 9/27/06 Trichloroethene BDL 5 9/27/06
Styrene BDL 100 9/27/06 Vinyl chloride BDL 2 9/27/06
Tetrachloromethane BDL NR 9/27/06 cis-1, 3-Dichloropropene BDL NR 9/27/06
Toluene BDL 1000 9/27/06 n-Butylbenzene BDL NR 9/27/06
Trichlorofluromethane BDL NR 9/27/06 o-Chlorotoluene BDL NR 9/27/06
cis-1, 2-Dichloroethene BDL 70 9/27/06 p-Chlorotoluene BDL NR 9/27/06
m/p - Xylenes BDL NR 9/27/06 sec Butylbenzene BDL NR 9/27/06
n-Proplybenzene BDL NR 9/27/06 trans-1, 2-Dichloroethene BDL 100 9/27/06
o-Xylene BDL NR 9/27/06  TRIHALOMETHANES 
p-Isopropyltoluene BDL NR 9/27/06 Bromodichloromethane 2.2 80 9/27/06
tert-Butylbenzene BDL NR 9/27/06 Bromoform 1.1 80 9/27/06
trans-1, 3-Dichloropropene BDL NR 9/27/06 Dibromochloromethane  2.8 80 9/27/06
1,1,1-Trichloroethane BDL 200 9/27/06 Chloroform  1 80 9/27/06
Total Trihalomethanes  7.1 80 9/27/06
SYNTHETIC ORGANIC CONTAMINANTS (b) (Units µg/L)
2,4-D BDL 70 7/29/02 3-Hydorxycarbofuran BDL NR 7/29/02
Acenaphthylene BDL NR 7/29/02 Alachlor BDL 2 7/29/02
Aldicarb BDL NR 7/29/02 Aldicarb Sulfone BDL NR 7/29/02
Aldicarb Sulfoxide BDL NR 7/29/02 Aldrin BDL NR 7/29/02
Anthracene BDL NR 7/29/02 Atrazine BDL 3 7/29/02
Benzo (A) anthracene BDL NR 7/29/02 Benzo (A) pyrene BDL NR 7/29/02
Benzo (B) fluoranthene BDL NR 7/29/02 Benzo (G,H,I) perylene BDL NR 7/29/02
Benzo (K) fluoranthene BDL NR 7/29/02 Butachlor BDL NR 7/29/02
Butylbenzylphthalate BDL NR 7/29/02 Carbaryl BDL NR 7/29/02
Carbofuran BDL 40 7/29/02 Chlordane BDL 2 7/29/02
Chrysene BDL NR 7/29/02 Di-n-butylphthalate BDL NR 7/29/02
Dibenz (A,H) anthracene BDL NR 7/29/02 Dibromochloropropane BDL NR 7/29/02
Dicamba BDL NR 7/29/02 Dieldrin BDL NR 7/29/02
Diethylphthalate BDL NR 7/29/02 Dimethylphthalate BDL NR 7/29/02
Dinoseb BDL 7 7/29/02 Endrin BDL 2 7/29/02
Ethylene dibromide BDL 0.05 7/29/02 Fluorene BDL NR 7/29/02
Glyphosate BDL 700 7/29/02 Heptachlor BDL 0.4 7/29/02
Heptachlor Epoxide BDL 0.2 7/29/02 Hexachlorobenzene BDL 1 7/29/02
Hexachlorocyclopentadiene BDL 50 7/29/02 Indeno (1,2,3-CD) pyrene BDL NR 7/29/02
Isophorone BDL NR 7/29/02 Lindane BDL 0.2 7/29/02
Methomyl BDL NR 7/29/02 Methoxychlor BDL 40 7/29/02
Metholachlor BDL NR 7/29/02 Metribuzin BDL NR 7/29/02
Oxamyl BDL 200 7/29/02 Pentachlorophenol BDL 1 7/29/02
Phenanthrene BDL NR 7/29/02 Picloram BDL 500 7/29/02
Propachlor BDL NR 7/29/02 Pyrene BDL NR 7/29/02
Silvex BDL 50 7/29/02 Simazine BDL 4 7/29/02
Toxaphene BDL 3 7/29/02 bis (2-ethylhexyl) adipate BDL NR 7/29/02
bis (2-Ethylhexyl) phthalate BDL 6 7/29/02
Page 2 of 2
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
DREW WOODS - DERRY, NH
EPA # 0612150
INORGANIC CONTAMINANTS (b) SECONDARY CONTAMINANTS (b) - AESTHETIC
Analyte Results MCL Date Analyte Results SMCL Date
Antimony (µg/L) < 2 6 7/26/05 Chloride (mg/L) 45 250 7/26/05
Arsenic (µg/L) 4 10 5/1/07 Copper (mg/L)  <0.01 AL=1.3 7/26/05
Barium (mg/L) 0.016 2 7/26/05 Fluoride (mg/L) <0.20 2 7/26/05
Beryllium (µg/L) <2 4 7/26/05 Iron (mg/L) 0.019 0.3 7/26/05
Cadmium (µg/L) <2 5 7/26/05 Manganese (mg/L) 0.088 0.05 7/26/05
Chromium (µg/L) <10 100 7/26/05 pH (Units) 8.06 6.5 – 8.5 7/26/05
Cyanide (µg/L) nd 200 7/26/05 Silver (µg/L) <4 100 7/26/05
Fluoride (mg/L) <0.20 4 7/26/05 Sodium (mg/L) 21.2 100-250 7/26/05
Lead (µg/L) <5 AL=15 7/26/05 Sulfate (mg/L) 21.5 250 7/26/05
Mercury (µg/L) nd 2 7/26/05 Zinc (mg/L) 0.028 5 7/26/05
Nickel (µg/L) <10 100 7/26/05
Nitrate-N (mg/L) < 0.2 10 9/27/06 RADIOLOGICAL CONTAMINANTS (b)
Nitrite-N (mg/L) < 0.05 1 7/26/05 Analyte (Units) Results MCL Date
Selenium (µg/L) < 5 50 7/26/05 Adjusted Gross Alpha (pCi/L) 2.3 15 10/7/04
Thallium (µg/L) < 1 2 7/26/05 Radon Gas (pCi/L) <200 None 4/10/07
Radium 226 (pCi/L) 1.1 5 10/7/04
FIRST DRAW LEAD AND COPPER (a) Radium 228 (pCi/L) 0.2 5 10/7/04
Analyte Results AL Date Uranium (ug/L) 3.7 30 10/7/04
Lead (µg/L) 90th percentile sample < 5 15 7/14/06
Copper (mg/L) 90th percentile sample 0.143 1.3 7/14/06 UNREGULATED CONTAMINANTS (b)
Analyte (Units) Results Date
Microbiological Contaminants (a) Results MCL Date Alkalinity as CaCO3 (mg/L) 95.2 7/26/05
Total Coliform Absent < 1/month Monthly Specific Conductance (umhos/cm2) 389 7/26/05
E. coli Absent Absent Monthly Total Hardness as CaCO3 (mg/L) 136 7/26/05
Chlorine Residual (mg/L) 0.2-1.4 <4.0 Weekly Orthophosphate (mg/L) average 1.55 Monthly
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.