Page 1 of 2 Update: 5/2/07
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
PENNICHUCK WATER WORKS - NASHUA, NH
EPA # 1621010
VOLATILE ORGANIC CONTAMINANTS (b) (Units µg/L)
Analyte Result MCL Date Analyte Result MCL Date
1,1,1,2-Tetrachloroethane < 0.5 NR 8/1/06 Diisopropyl Ether (DIPE) < 0.5 NR 8/1/06
1,1,1-Trichloroethane < 0.5 200 8/1/06 Ethyl Tert-Butyl Ether (ETBE) < 0.5 NR 8/1/06
1,1,2,2-Tetrachloroethane < 0.5 NR 8/1/06 Ethylbenzene < 0.5 700 8/1/06
1,1,2-Trichloroethane < 0.5 5 8/1/06 Hexachlorobutadiene < 0.5 NR 8/1/06
1,1-Dichloroethane < 0.5 NR 8/1/06 Isopropylbenzene < 0.5 NR 8/1/06
1,1-Dichloroethane < 0.5 7 8/1/06 m/p - Xylenes < 0.5 NR 8/1/06
1,1-Dichloropropylene < 0.5 NR 8/1/06 Methyl ethyl ketone (MEK) 2-Butanone < 0.5 NR 8/1/06
1,2,3-Trichlorobenzene < 0.5 NR 8/1/06 Methylene chloride < 0.5 5 8/1/06
1,2,3-Trichloropropane < 0.5 NR 8/1/06 Methyl-t-butyl-ether (MtBE) < 0.5 13 8/1/06
1,2,4-Trichlorobenzene < 0.5 70 8/1/06 Napthalene < 0.5 NR 8/1/06
1,2,4-Trimethylbenzene < 0.5 NR 8/1/06 n-Butylbenzene < 0.5 NR 8/1/06
1,2-Dibromo - 3- chloropropane < 0.5 0.2 8/1/06 Nitrobensene < 0.5 NR 8/1/06
1,2-Dibromoethane < 0.5 NR 8/1/06 n-Proplybenzene < 0.5 NR 8/1/06
1,2-Dichlorobenzene < 0.5 600 8/1/06 o-Chlorotoluene < 0.5 NR 8/1/06
1,2-Dichloroethane < 0.5 5 8/1/06 o-Xylene < 0.5 NR 8/1/06
1,2-Dichloropropane < 0.5 5 8/1/06 p-Chlorotoluene < 0.5 NR 8/1/06
1,3,5-Trimethylbenzene < 0.5 NR 8/1/06 sec Butylbenzene < 0.5 NR 8/1/06
1,3-Dichlorobenzene < 0.5 NR 8/1/06 Styrene < 0.5 100 8/1/06
1,3-Dichloropropane < 0.5 NR 8/1/06 Tert-Amyl Methyl Ether (TAME) < 0.5 NR 8/1/06
1,4-Dichlorobenzene < 0.5 75 8/1/06 Tert-Butyl Alcohol (TBA) < 0.5 NR 8/1/06
2,2-Dichloropropane < 0.5 NR 8/1/06 Tert-Butylbenzene < 0.5 NR 8/1/06
2-Hexanone < 0.5 NR 8/1/06 Tetrachloroethylene < 0.5 5 8/1/06
4 Methyl-2-Pentanone (MIBK) < 0.5 NR 8/1/06 Tetrachloromethane < 0.5 NR 8/1/06
4-Isopropyltoluene < 0.5 NR 8/1/06 Tetrahydrofuran < 0.5 NR 8/1/06
Acetone < 0.5 NR 8/1/06 Toluene < 0.5 1000 8/1/06
Benzene < 0.5 5 8/1/06 Total Xylenes < 0.5 10,000 8/1/06
Bromobenzene < 0.5 NR 8/1/06 Trans-1, 2-Dichloroethylene < 0.5 100 8/1/06
Bromochloromethane < 0.5 NR 8/1/06 Trans-1, 3-Dichloropropylene < 0.5 NR 8/1/06
Bromomethane < 0.5 NR 8/1/06 Trichloroethylene < 0.5 5 8/1/06
Carbon Disulfide < 0.5 NR 8/1/06 Trichlorofluromethane < 0.5 NR 8/1/06
Chlorobenzene < 0.5 100 8/1/06 Vinyl chloride < 0.5 2 8/1/06
Chloroethane < 0.5 NR 8/1/06
Chloromethane < 0.5 NR 8/1/06  TRIHALOMETHANES 
cis-1, 2-Dichloroethylene < 0.5 70 8/1/06 Bromodichloromethane  4.4 80 8/1/06
cis-1, 3-Dichloropropylene < 0.5 NR 8/1/06 Bromoform < 0.5 80 8/1/06
Dibromomethane < 0.5 NR 8/1/06 Dibromochloromethane 1.9 80 8/1/06
Dichlorodifluoromethane < 0.5 NR 8/1/06 Chloroform  4.9 80 8/1/06
Diethyl ether < 0.5 NR 8/1/06 Total Trihalomethanes  11.2 80 8/1/06
SYNTHETIC ORGANIC CONTAMINANTS (b) (Units µg/L)
2,4,5-TP (Silvex)  BDL 50 8/1/06 Dinoseb BDL 7 8/1/06
2,4-D BDL 70 8/1/06 Endrin BDL 2 8/1/06
3-Hydorxycarbofuran BDL NR 8/1/06 Ethylene dibromide (EDB) BDL 0.05 8/1/06
Alachlor BDL 2 8/1/06 Fluorene BDL NR 8/1/06
Aldicarb BDL NR 8/1/06 Glyphosate BDL 700 8/1/06
Aldicarb Sulfone BDL NR 8/1/06 Heptachlor BDL 0.4 8/1/06
Aldicarb Sulfoxide BDL NR 8/1/06 Heptachlor Epoxide BDL 0.2 8/1/06
Aldrin BDL NR 8/1/06 Hexachlorobenzene BDL 1 8/1/06
Atrazine BDL 3 8/1/06 Hexachlorocyclopentadiene BDL 50 8/1/06
Benzo (A) pyrene BDL NR 8/1/06 Lindane BDL 0.2 8/1/06
Butachlor BDL NR 8/1/06 Metholachlor BDL NR 8/1/06
Carbaryl BDL NR 8/1/06 Methomyl BDL NR 8/1/06
Carbofuran BDL 40 8/1/06 Methoxychlor BDL 40 8/1/06
Chlordane BDL 2 8/1/06 Metribuzin BDL NR 8/1/06
Di (2-ethylhexyl) adipate BDL NR 8/1/06 Oxamyl (Vydate) BDL 200 8/1/06
Di (2-Ethylhexyl) phthalate BDL 6 8/1/06 Pentachlorophenol BDL 1 8/1/06
Dibromochloropropane (DBCP) BDL NR 8/1/06 Picloram BDL 500 8/1/06
Dicamba BDL NR 8/1/06 Propachlor BDL NR 8/1/06
Dieldrin BDL NR 8/1/06 Simazine BDL 4 8/1/06
Toxaphene BDL 3 8/1/06
Page 2 of 2
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
PENNICHUCK WATER WORKS - NASHUA, NH
EPA # 1621010
INORGANIC CONTAMINANTS (b) SECONDARY CONTAMINANTS (b) - AESTHETIC
Analyte Results MCL Date Analyte Results SMCL Date
Antimony (µg/L) < 2 6 8/1/06 Chloride (mg/L) 69 250 8/1/06
Arsenic (µg/L) <2 10 8/1/06 Color (color units) < 5 15 2005
Barium (mg/L) 0.014 2 8/1/06 Fluoride (mg/L) <0.20 2 8/1/06
Beryllium (µg/L) < 2 4 8/1/06 Iron (mg/L) <0.01 0.3 6/6/07
Cadmium (µg/L) < 2 5 8/1/06 Manganese (mg/L) 0.011 0.05 6/6/07
Chromium (µg/L) < 10 100 8/1/06 pH (Units) 7.08 6.5 – 8.5 2/15/07
Copper (mg/L) 0.054 AL=1.3 6/6/07 Silver (µg/L) < 4 100 8/1/06
Cyanide (µg/L) < 10 200 8/1/06 Sodium (mg/L) 31.6 100-250 6/6/07
Fluoride (mg/L) <0.20 4 8/1/06 Sulfate (mg/L) 7.2 250 8/1/06
Lead (µg/L) < 5 AL=15 8/1/06 Zinc (mg/L) 0.223 5 6/6/07
Mercury (µg/L) < 0.2 2 8/1/06
Nickel (µg/L) < 10 100 8/1/06 RADIOLOGICAL CONTAMINANTS (b)
Nitrate-N (mg/L) 0.23 10 8/1/06 Analyte (Units) Results MCL Date
Nitrite-N (mg/L) < 0.05 1 8/1/05 Adjusted Gross Alpha (pCi/L) <2.5 15 5/2/07
Selenium (µg/L) < 5 50 8/1/06 Radon Gas (pCi/L) < 200 NR 10/31/01
Thallium (µg/L) < 1 2 8/1/06 Uranium (mass) (ug/L) <0.9 30 5/2/07
Turbidity (NTU) 0.2 -0.4 0.5 CM Radium 226 (pCi/L) 0.2 5 5/2/07
Radium 228 (pCi/L) <0.5 5 5/2/07
Microbiological Contaminants (a) Results MCL Date
Total Coliform Absent < 5% Positive per Month 23 Samples per week UNREGULATED CONTAMINANTS (b)
E. coli Absent Absent Analyte (Units) Results Date
Specific Conductance (umhos/cm2) 296 8/1/06
FIRST DRAW LEAD AND COPPER (a) Total Hardness as CaCO3 (mg/L) 25 5/1/07
Analyte Results AL Date Orthophosphate (mg/L) average 1.51 Weekly
Lead (µg/L) 90th percentile sample 8 15 2005 Sulfide (mg/L) 0.8 8/1/06
Copper (mg/L) 90th percentile sample 0.13 1.3 2005 Alkalinity as CaCO3 (mg/L) 27.4 8/1/06
Chlorine Residual (mg/L) average 0.58 CM
Calcium (mg/L) 8.9 6/6/07
Hydrogen Sulfide (mg/L) 0.36 8/1/06
Magnesium (mg/L) 1.6 6/6/07
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. NTU Nephelometric Turbidity Unit µg/L micrograms per Liter or parts per billion. Turbidity Measure of the cloudiness of water. pCi/L picocuries per Liter (measure of radioactivity) CM Continuous Monitoring N/A Not Applicable nd not detected BDL Below Detection Level
KEY TO ABBREVIATIONS
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.
Text Box: Sample Frequency: Volatile Organic Contaminates, Synthetic Organic Contaminates, Radiological Contaminates, Inorganic Contaminates and Secondary Contaminates, and Lead and Copper are tested once every three years. 20 distribution samples per week are tested for Total Coliforms and E. coli, Nitrates are tested once per year. Sample frequency is set by the State of New Hampshire based on Federal regulations.