Page 1 of 2 Update: 4/2/07
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
HARVEST VILLAGE - LONDONDERRY, NH
EPA # 1392290
VOLATILE ORGANIC CONTAMINANTS (b) (Units µg/L)
Analyte Result MCL Date Analyte Result MCL Date
1,1,1,2-Tetrachloroethane < 0.5 NR 7/18/05 Diisopropyl Ether (DIPE) < 0.5 NR 7/18/05
1,1,1-Trichloroethane < 0.5 200 7/18/05 Ethyl Tert-Butyl Ether (ETBE) < 0.5 NR 7/18/05
1,1,2,2-Tetrachloroethane < 0.5 NR 7/18/05 Ethylbenzene < 0.5 700 7/18/05
1,1,2-Trichloroethane < 0.5 5 7/18/05 Hexachlorobutadiene < 0.5 NR 7/18/05
1,1-Dichloroethane < 0.5 NR 7/18/05 Isopropylbenzene < 0.5 NR 7/18/05
1,1-Dichloroethane < 0.5 7 7/18/05 m/p - Xylenes < 0.5 NR 7/18/05
1,1-Dichloropropylene < 0.5 NR 7/18/05 Methyl ethyl ketone (MEK) 2-Butanone < 0.5 NR 7/18/05
1,2,3-Trichlorobenzene < 0.5 NR 7/18/05 Methylene chloride < 0.5 5 7/18/05
1,2,3-Trichloropropane < 0.5 NR 7/18/05 Methyl-t-butyl-ether (MtBE) < 0.5 13 7/18/05
1,2,4-Trichlorobenzene < 0.5 70 7/18/05 Napthalene < 0.5 NR 7/18/05
1,2,4-Trimethylbenzene < 0.5 NR 7/18/05 n-Butylbenzene < 0.5 NR 7/18/05
1,2-Dibromo - 3- chloropropane < 0.5 0.2 7/18/05 Nitrobensene < 0.5 NR 7/18/05
1,2-Dibromoethane < 0.5 NR 7/18/05 n-Proplybenzene < 0.5 NR 7/18/05
1,2-Dichlorobenzene < 0.5 600 7/18/05 o-Chlorotoluene < 0.5 NR 7/18/05
1,2-Dichloroethane < 0.5 5 7/18/05 o-Xylene < 0.5 NR 7/18/05
1,2-Dichloropropane < 0.5 5 7/18/05 p-Chlorotoluene < 0.5 NR 7/18/05
1,3,5-Trimethylbenzene < 0.5 NR 7/18/05 sec Butylbenzene < 0.5 NR 7/18/05
1,3-Dichlorobenzene < 0.5 NR 7/18/05 Styrene < 0.5 100 7/18/05
1,3-Dichloropropane < 0.5 NR 7/18/05 Tert-Amyl Methyl Ether (TAME) < 0.5 NR 7/18/05
1,4-Dichlorobenzene < 0.5 75 7/18/05 Tert-Butyl Alcohol (TBA) < 0.5 NR 7/18/05
2,2-Dichloropropane < 0.5 NR 7/18/05 Tert-Butylbenzene < 0.5 NR 7/18/05
2-Hexanone < 0.5 NR 7/18/05 Tetrachloroethylene < 0.5 5 7/18/05
4 Methyl-2-Pentanone (MIBK) < 0.5 NR 7/18/05 Tetrachloromethane < 0.5 NR 7/18/05
4-Isopropyltoluene < 0.5 NR 7/18/05 Tetrahydrofuran < 0.5 NR 7/18/05
Acetone < 0.5 NR 7/18/05 Toluene < 0.5 1000 7/18/05
Benzene < 0.5 5 7/18/05 Total Xylenes < 0.5 10,000 7/18/05
Bromobenzene < 0.5 NR 7/18/05 Trans-1, 2-Dichloroethylene < 0.5 100 7/18/05
Bromochloromethane < 0.5 NR 7/18/05 Trans-1, 3-Dichloropropylene < 0.5 NR 7/18/05
Bromomethane < 0.5 NR 7/18/05 Trichloroethylene < 0.5 5 7/18/05
Carbon Disulfide < 0.5 NR 7/18/05 Trichlorofluromethane < 0.5 NR 7/18/05
Chlorobenzene < 0.5 100 7/18/05 Vinyl chloride < 0.5 2 7/18/05
Chloroethane < 0.5 NR 7/18/05
Chloromethane < 0.5 NR 7/18/05  TRIHALOMETHANES 
cis-1, 2-Dichloroethylene < 0.5 70 7/18/05 Bromodichloromethane  1.7 80 8/15/06
cis-1, 3-Dichloropropylene < 0.5 NR 7/18/05 Bromoform <0.5 80 8/15/06
Dibromomethane < 0.5 NR 7/18/05 Dibromochloromethane 1.3 80 8/15/06
Dichlorodifluoromethane < 0.5 NR 7/18/05 Chloroform  1.6 80 8/15/06
Diethyl ether < 0.5 NR 7/18/05 Total Trihalomethanes  4.6 80 8/15/06
SYNTHETIC ORGANIC CONTAMINANTS (b) (Units µg/L)
2,4,5-TP (Silvex)  BDL 50 8/10/05 Dinoseb BDL 7 8/10/05
2,4-D BDL 70 8/10/05 Endrin BDL 2 8/10/05
3-Hydorxycarbofuran BDL NR 8/10/05 Ethylene dibromide (EDB) BDL 0.05 8/10/05
Alachlor BDL 2 8/10/05 Fluorene BDL NR 8/10/05
Aldicarb BDL NR 8/10/05 Glyphosate BDL 700 8/10/05
Aldicarb Sulfone BDL NR 8/10/05 Heptachlor BDL 0.4 8/10/05
Aldicarb Sulfoxide BDL NR 8/10/05 Heptachlor Epoxide BDL 0.2 8/10/05
Aldrin BDL NR 8/10/05 Hexachlorobenzene BDL 1 8/10/05
Atrazine BDL 3 8/10/05 Hexachlorocyclopentadiene BDL 50 8/10/05
Benzo (A) pyrene BDL NR 8/10/05 Lindane BDL 0.2 8/10/05
Butachlor BDL NR 8/10/05 Metholachlor BDL NR 8/10/05
Carbaryl BDL NR 8/10/05 Methomyl BDL NR 8/10/05
Carbofuran BDL 40 8/10/05 Methoxychlor BDL 40 8/10/05
Chlordane BDL 2 8/10/05 Metribuzin BDL NR 8/10/05
Di (2-ethylhexyl) adipate BDL NR 8/10/05 Oxamyl (Vydate) BDL 200 8/10/05
Di (2-Ethylhexyl) phthalate BDL 6 8/10/05 Pentachlorophenol BDL 1 8/10/05
Dibromochloropropane (DBCP) BDL NR 8/10/05 Picloram BDL 500 8/10/05
Dicamba BDL NR 8/10/05 Propachlor BDL NR 8/10/05
Dieldrin BDL NR 8/10/05 Simazine BDL 4 8/10/05
          Toxaphene BDL 3 8/10/05
Page 2 of 2
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
HARVEST VILLAGE - LONDONDERRY, NH
EPA # 1392290
INORGANIC CONTAMINANTS (b) SECONDARY CONTAMINANTS (b) - AESTHETIC
Analyte Results MCL Date Analyte Results SMCL Date
Antimony (µg/L) <2 6 7/28/04 Chloride (mg/L) 40 250 7/28/04
Arsenic (µg/L) <4 10 7/28/04 Fluoride (mg/L) 0.38 2 7/28/04
Barium (mg/L) <0.01 2 7/28/04 Iron (µg/L) < 10 300 7/28/04
Beryllium (µg/L) < 2 4 7/28/04 Manganese (µg/L) < 10 50 7/28/04
Cadmium (µg/L) <2 5 7/28/04 pH (Units) 7.1 6.5 – 8.5 7/28/04
Chlorine Rersidual (mg/L) 0.2 - 0.6 4 n/a Silver (µg/L) <4 100 7/28/04
Copper (mg/L) < 0.01 1.3-AL 7/28/04 Sodium (mg/L) 10.6 100-250 7/28/04
Chromium (µg/L) <10 100 7/28/04 Sulfate (mg/L) 34.7 250 7.28/04
Cyanide (µg/L) nd 200 7/28/04 Zinc (mg/L) 0.03 5 7/28/04
Fluoride (mg/L) 0.38 4 7/28/04
Lead (µg/L) < 5 15-AL 7/28/04 RADIOLOGICAL CONTAMINANTS (b)
Mercury (µg/L) nd 2 7/28/04 Analyte (Units) Results MCL Date
Nickel (µg/L) <10 100 7/28/04 Adjusted Gross Alpha (pCi/L) <2.9 15 11/16/06
Nitrate-N (mg/L) 1.06 10 9/27/06 Radon Gas (pCi/L) 2560 None 4/2/07
Nitrite-N (mg/L) < 0.05 1 9/26/06 Radium-226 (pCi/L) <0.05 5 11/16/06
Selenium (µg/L) <5 50 7/28/04 Radium-228 (pCi/L) <0.5 5 11/16/06
Thallium (µg/L) < 1 2 7/28/04 Uranium (µg/L) 1.9 30 11/16/06
FIRST DRAW LEAD AND COPPER (a)
Analyte Results AL Date UNREGULATED CONTAMINANTS (b)
Lead (µg/L) 90th percentile sample < 5 15 5/12/05 Analyte (Units) Results Date
Copper (mg/L) 90th percentile sample 0.20 1.3 5/12/05 Alkalinity as CaCO3 (mg/L) 106 7/28/04
Calcium (mg/L) 64.6 7/28/04
Microbiological Contaminants (a) Results MCL Date Hydrogen Sulfide (mg/L) <0.02 7/28/04
Total Coliform Absent < 1/month Monthly Magnesium (mg/L) 2.6 7/28/04
E. coli Absent Absent Monthly Specific Conductance (umhos/cm2) 409 7/28/04
Chlorine Residual (mg/L) 0.15-0.4 <4.0 Weekly Total Hardness as CaCO3 (mg/L) 172 7/28/04
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.