Page 1 of 2 Update: 4/26/07
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
PINEHAVEN WATER TRUST - LONDONDERRY, NH
EPA # 1392040
VOLATILE ORGANIC CONTAMINANTS (b) (Units µg/L)
Analyte Result MCL Date Analyte Result MCL Date
1,1,1,2-Tetrachloroethane < 0.5 NR 2/1/07 Diisopropyl Ether (DIPE) < 0.5 NR 2/1/07
1,1,1-Trichloroethane < 0.5 200 2/1/07 Ethyl Tert-Butyl Ether (ETBE) < 0.5 NR 2/1/07
1,1,2,2-Tetrachloroethane < 0.5 NR 2/1/07 Ethylbenzene < 0.5 700 2/1/07
1,1,2-Trichloroethane < 0.5 5 2/1/07 Hexachlorobutadiene < 0.5 NR 2/1/07
1,1-Dichloroethane < 0.5 NR 2/1/07 Isopropylbenzene < 0.5 NR 2/1/07
1,1-Dichloroethane < 0.5 7 2/1/07 m/p - Xylenes < 0.5 NR 2/1/07
1,1-Dichloropropylene < 0.5 NR 2/1/07 Methyl ethyl ketone (MEK) 2-Butanone < 0.5 NR 2/1/07
1,2,3-Trichlorobenzene < 0.5 NR 2/1/07 Methylene chloride < 0.5 5 2/1/07
1,2,3-Trichloropropane < 0.5 NR 2/1/07 Methyl-t-butyl-ether (MtBE) 0.5 13 4/26/07
1,2,4-Trichlorobenzene < 0.5 70 2/1/07 Napthalene < 0.5 NR 2/1/07
1,2,4-Trimethylbenzene < 0.5 NR 2/1/07 n-Butylbenzene < 0.5 NR 2/1/07
1,2-Dibromo - 3- chloropropane < 0.5 0.2 2/1/07 Nitrobensene < 0.5 NR 2/1/07
1,2-Dibromoethane < 0.5 NR 2/1/07 n-Proplybenzene < 0.5 NR 2/1/07
1,2-Dichlorobenzene < 0.5 600 2/1/07 o-Chlorotoluene < 0.5 NR 2/1/07
1,2-Dichloroethane < 0.5 5 2/1/07 o-Xylene < 0.5 NR 2/1/07
1,2-Dichloropropane < 0.5 5 2/1/07 p-Chlorotoluene < 0.5 NR 2/1/07
1,3,5-Trimethylbenzene < 0.5 NR 2/1/07 sec Butylbenzene < 0.5 NR 2/1/07
1,3-Dichlorobenzene < 0.5 NR 2/1/07 Styrene < 0.5 100 2/1/07
1,3-Dichloropropane < 0.5 NR 2/1/07 Tert-Amyl Methyl Ether (TAME) < 0.5 NR 2/1/07
1,4-Dichlorobenzene < 0.5 75 2/1/07 Tert-Butyl Alcohol (TBA) < 0.5 NR 2/1/07
2,2-Dichloropropane < 0.5 NR 2/1/07 Tert-Butylbenzene < 0.5 NR 2/1/07
2-Hexanone < 0.5 NR 2/1/07 Tetrachloroethylene < 0.5 5 2/1/07
4 Methyl-2-Pentanone (MIBK) < 0.5 NR 2/1/07 Tetrachloromethane < 0.5 NR 2/1/07
4-Isopropyltoluene < 0.5 NR 2/1/07 Tetrahydrofuran < 0.5 NR 2/1/07
Acetone <10 NR 2/1/07 Toluene < 0.5 1000 2/1/07
Benzene < 0.5 5 2/1/07 Total Xylenes < 0.5 10,000 2/1/07
Bromobenzene < 0.5 NR 2/1/07 Trans-1, 2-Dichloroethylene < 0.5 100 2/1/07
Bromochloromethane < 0.5 NR 2/1/07 Trans-1, 3-Dichloropropylene < 0.5 NR 2/1/07
Bromomethane < 0.5 NR 2/1/07 Trichloroethylene < 0.5 5 2/1/07
Carbon Disulfide < 0.5 NR 2/1/07 Trichlorofluromethane < 0.5 NR 2/1/07
Chlorobenzene < 0.5 100 2/1/07 Vinyl chloride < 0.5 2 2/1/07
Chloroethane < 0.5 NR 2/1/07
Chloromethane < 0.5 NR 2/1/07  TRIHALOMETHANES 
cis-1, 2-Dichloroethylene < 0.5 70 2/1/07 Bromodichloromethane <0.5 80 2/1/07
cis-1, 3-Dichloropropylene < 0.5 NR 2/1/07 Bromoform < 0.5 80 2/1/07
Dibromomethane < 0.5 NR 2/1/07 Dibromochloromethane  0.6 80 2/1/07
Dichlorodifluoromethane < 0.5 NR 2/1/07 Chloroform  < 0.5 80 2/1/07
Diethyl ether < 0.5 NR 1/9/07 Total Trihalomethanes  0.6 80 2/1/07
SYNTHETIC ORGANIC CONTAMINANTS (b) (Units µg/L)
2,4,5-TP (Silvex)  BDL 50 10/27/05 Dinoseb BDL 7 10/27/05
2,4-D BDL 70 10/27/05 Endrin BDL 2 10/27/05
3-Hydorxycarbofuran BDL NR 10/27/05 Ethylene dibromide (EDB) BDL 0.05 10/27/05
Alachlor BDL 2 10/27/05 Fluorene BDL NR 10/27/05
Aldicarb BDL NR 10/27/05 Glyphosate BDL 700 10/27/05
Aldicarb Sulfone BDL NR 10/27/05 Heptachlor BDL 0.4 10/27/05
Aldicarb Sulfoxide BDL NR 10/27/05 Heptachlor Epoxide BDL 0.2 10/27/05
Aldrin BDL NR 10/27/05 Hexachlorobenzene BDL 1 10/27/05
Atrazine BDL 3 10/27/05 Hexachlorocyclopentadiene BDL 50 10/27/05
Benzo (A) pyrene BDL NR 10/27/05 Lindane BDL 0.2 10/27/05
Butachlor BDL NR 10/27/05 Metholachlor BDL NR 10/27/05
Carbaryl BDL NR 10/27/05 Methomyl BDL NR 10/27/05
Carbofuran BDL 40 10/27/05 Methoxychlor BDL 40 10/27/05
Chlordane BDL 2 10/27/05 Metribuzin BDL NR 10/27/05
Di (2-ethylhexyl) adipate BDL NR 10/27/05 Oxamyl (Vydate) BDL 200 10/27/05
Di (2-Ethylhexyl) phthalate BDL 6 10/27/05 Pentachlorophenol BDL 1 10/27/05
Dibromochloropropane (DBCP) BDL NR 10/27/05 Picloram BDL 500 10/27/05
Dicamba BDL NR 10/27/05 Propachlor BDL NR 10/27/05
Dieldrin BDL NR 10/27/05 Simazine BDL 4 10/27/05
Toxaphene BDL 3 10/27/05
Page 2 of 2
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
PINEHAVEN WATER TRUST - LONDONDERRY, NH
EPA # 1392040
INORGANIC CONTAMINANTS (b) SECONDARY CONTAMINANTS (b) - AESTHETIC
Analyte Results MCL Date Analyte Results SMCL Date
Antimony (µg/L) < 2 6 10/27/05 Chloride (mg/L) 86 250 10/27/05
Arsenic (µg/L) <2 10 10/27/05 Fluoride (mg/L) < 0.2 2 10/27/05
Barium (mg/L) 0.023 2 10/27/05 Iron (µg/L) 11 300 10/27/05
Beryllium (µg/L) < 2 4 10/27/05 Manganese (µg/L) <0.01 50 10/27/05
Cadmium (µg/L) < 2 5 10/27/05 pH (Units)                  average 7.19 6.5 – 8.5 2007
Chromium (µg/L) < 10 100 10/27/05 chloride (mg/L) < 4 100 10/27/05
Copper (mg/L) 0.051 1.3-AL 10/27/05 Sodium (mg/L) 37.1 100-250 10/27/05
Cyanide (µg/L) < 10 200 10/27/05 Sulfate (mg/L) 13 250 10/27/05
Fluoride (mg/L) < 0.2 4 10/27/05 Zinc (mg/L) 0.03 5 10/27/05
Lead (µg/L)  < 5 15-AL 10/27/05
Mercury (µg/L) <0.2 2 10/27/05 RADIOLOGICAL CONTAMINANTS (b)
Nickel (µg/L) <10 100 10/27/05 Analyte (Units) Results MCL Date
Nitrate-N (mg/L) 5.32 10 4/26/07 Adjusted Gross Alpha (pCi/L) <2.5 15 4/26/07
Nitrite-N (mg/L) < 0.05 1 10/21/04 Radon Gas (pCi/L) 268 None 4/9/07
Selenium (µg/L) <5 50 10/27/05 Radium 226 (pCi/L) 0.3 5 4/26/07
Thallium (µg/L) <1 2 12/13/05 Radium 228 (pCi/L) <0.6 5 4/26/07
Uranium (ug/L) <0.9 30 4/26/07
FIRST DRAW LEAD AND COPPER (a)
Analyte Results AL Date
Lead (µg/L) 90th percentile sample < 5 15 3/7/05 UNREGULATED CONTAMINANTS (b)
Copper (mg/L) 90th percentile sample 0.09 1.3 3/7/05 Analyte (Units) Results Date
Alkalinity as CaCO3 (mg/L) 38.9 10/27/05
Microbiological Contaminants (a) Results MCL Date Calcium (mg/L) 26 10/27/05
Total Coliform Absent < 1/month Monthly Hydrogen Sulfide (mg/L) < 0.02 10/27/05
E. coli Absent Absent Monthly Magnesium (mg/L) 3.6 10/27/05
Chlorine Residual (mg/L) 0.3-0.65 <4.0 Weekly Specific Conductance (umhos/cm2) 457 10/27/05
Total Hardness as CaCO3 (mg/L) 79.7 10/27/05
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 1-603-882-5191 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.