Page 1 of 2 Update: 4/9/07
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
SWEET HILL - PLAISTOW, NH
EPA # 1932200
VOLATILE ORGANIC CONTAMINANTS (b) (Units µg/L)
Analyte Result MCL Date Analyte Result MCL Date
1,1,1,2-Tetrachloroethane < 0.5 NR 9/27/06 Diisopropyl Ether (DIPE) < 0.5 NR 9/27/06
1,1,1-Trichloroethane < 0.5 200 9/27/06 Ethyl Tert-Butyl Ether (ETBE) < 0.5 NR 9/27/06
1,1,2,2-Tetrachloroethane < 0.5 NR 9/27/06 Ethylbenzene < 0.5 700 9/27/06
1,1,2-Trichloroethane < 0.5 5 9/27/06 Hexachlorobutadiene < 0.5 NR 9/27/06
1,1-Dichloroethane < 0.5 NR 9/27/06 Isopropylbenzene < 0.5 NR 9/27/06
1,1-Dichloroethane < 0.5 7 9/27/06 m/p - Xylenes < 0.5 NR 9/27/06
1,1-Dichloropropylene < 0.5 NR 9/27/06 Methyl ethyl ketone (MEK) 2-Butanone < 0.5 NR 9/27/06
1,2,3-Trichlorobenzene < 0.5 NR 9/27/06 Methylene chloride < 0.5 5 9/27/06
1,2,3-Trichloropropane < 0.5 NR 9/27/06 Methyl-t-butyl-ether (MtBE) < 0.5 13 9/27/06
1,2,4-Trichlorobenzene < 0.5 70 9/27/06 Napthalene < 0.5 NR 9/27/06
1,2,4-Trimethylbenzene < 0.5 NR 9/27/06 n-Butylbenzene < 0.5 NR 9/27/06
1,2-Dibromo - 3- chloropropane < 0.5 0.2 9/27/06 Nitrobensene < 0.5 NR 9/27/06
1,2-Dibromoethane < 0.5 NR 9/27/06 n-Proplybenzene < 0.5 NR 9/27/06
1,2-Dichlorobenzene < 0.5 600 9/27/06 o-Chlorotoluene < 0.5 NR 9/27/06
1,2-Dichloroethane < 0.5 5 9/27/06 o-Xylene < 0.5 NR 9/27/06
1,2-Dichloropropane < 0.5 5 9/27/06 p-Chlorotoluene < 0.5 NR 9/27/06
1,3,5-Trimethylbenzene < 0.5 NR 9/27/06 sec Butylbenzene < 0.5 NR 9/27/06
1,3-Dichlorobenzene < 0.5 NR 9/27/06 Styrene < 0.5 100 9/27/06
1,3-Dichloropropane < 0.5 NR 9/27/06 Tert-Amyl Methyl Ether (TAME) < 0.5 NR 9/27/06
1,4-Dichlorobenzene < 0.5 75 9/27/06 Tert-Butyl Alcohol (TBA) < 0.5 NR 9/27/06
2,2-Dichloropropane < 0.5 NR 9/27/06 Tert-Butylbenzene < 0.5 NR 9/27/06
2-Hexanone < 0.5 NR 9/27/06 Tetrachloroethylene < 0.5 5 9/27/06
4 Methyl-2-Pentanone (MIBK) < 0.5 NR 9/27/06 Tetrachloromethane < 0.5 NR 9/27/06
4-Isopropyltoluene < 0.5 NR 9/27/06 Tetrahydrofuran < 0.5 NR 9/27/06
Acetone < 0.5 NR 9/27/06 Toluene < 0.5 1000 9/27/06
Benzene < 0.5 5 9/27/06 Total Xylenes < 0.5 10,000 9/27/06
Bromobenzene < 0.5 NR 9/27/06 Trans-1, 2-Dichloroethylene < 0.5 100 9/27/06
Bromochloromethane < 0.5 NR 9/27/06 Trans-1, 3-Dichloropropylene < 0.5 NR 9/27/06
Bromomethane < 0.5 NR 9/27/06 Trichloroethylene < 0.5 5 9/27/06
Carbon Disulfide < 0.5 NR 9/27/06 Trichlorofluromethane < 0.5 NR 9/27/06
Chlorobenzene < 0.5 100 9/27/06 Vinyl chloride < 0.5 2 9/27/06
Chloroethane < 0.5 NR 9/27/06
Chloromethane < 0.5 NR 9/27/06  TRIHALOMETHANES 
cis-1, 2-Dichloroethylene < 0.5 70 9/27/06 Bromodichloromethane  4.3 80 9/27/06
cis-1, 3-Dichloropropylene < 0.5 NR 9/27/06 Bromoform < 0.5 80 9/27/06
Dibromomethane < 0.5 NR 9/27/06 Dibromochloromethane 2.8 80 9/27/06
Dichlorodifluoromethane < 0.5 NR 9/27/06 Chloroform  4.3 80 9/27/06
Diethyl ether < 0.5 NR 9/27/06 Total Trihalomethanes  11 80 9/27/06
SYNTHETIC ORGANIC CONTAMINANTS (b) (Units µg/L)
2,4,5-TP (Silvex)  BDL 50 8/2/05 Dinoseb BDL 7 8/2/05
2,4-D BDL 70 8/2/05 Endrin BDL 2 8/2/05
3-Hydorxycarbofuran BDL NR 8/2/05 Ethylene dibromide (EDB) BDL 0.05 8/2/05
Alachlor BDL 2 8/2/05 Fluorene BDL NR  
Aldicarb BDL NR 8/2/05 Glyphosate BDL 700 8/2/05
Aldicarb Sulfone BDL NR 8/2/05 Heptachlor BDL 0.4 8/2/05
Aldicarb Sulfoxide BDL NR 8/2/05 Heptachlor Epoxide BDL 0.2 8/2/05
Aldrin BDL NR 8/2/05 Hexachlorobenzene BDL 1 8/2/05
Atrazine BDL 3 8/2/05 Hexachlorocyclopentadiene BDL 50 8/2/05
Benzo (A) pyrene BDL NR 8/2/05 Lindane BDL 0.2 8/2/05
Butachlor BDL NR 8/2/05 Metholachlor BDL NR 8/2/05
Carbaryl BDL NR 8/2/05 Methomyl BDL NR 8/2/05
Carbofuran BDL 40 8/2/05 Methoxychlor BDL 40 8/2/05
Chlordane BDL 2 8/2/05 Metribuzin BDL NR 8/2/05
Di (2-ethylhexyl) adipate BDL NR 8/2/05 Oxamyl (Vydate) BDL 200 8/2/05
Di (2-Ethylhexyl) phthalate BDL 6 8/2/05 Pentachlorophenol BDL 1 8/2/05
Dibromochloropropane (DBCP) BDL NR 8/2/05 Picloram BDL 500 8/2/05
Dicamba BDL NR 8/2/05 Propachlor BDL NR 8/2/05
Dieldrin BDL NR 8/2/05 Simazine BDL 4 8/2/05
Toxaphene BDL 3 8/2/05
Page 2 of 2
PENNICHUCK WATER WORKS
WATER QUALITY REPORT
SWEET HILL - PLAISTOW, NH
EPA # 1932200
INORGANIC CONTAMINANTS (b) SECONDARY CONTAMINANTS (b) - AESTHETIC
Analyte Results MCL Date Analyte Results SMCL Date
Antimony (µg/L) < 2 6 7/29/04 Chloride (mg/L) 9 250 7/29/04
Arsenic (µg/L) <4 10 7/29/04 Fluoride (mg/L) 0.29 2 7/29/04
Barium (mg/L) 0.038 2 7/29/04 Iron (µg/L) 22 300 7/29/04
Beryllium (µg/L) < 2 4 7/29/04 Manganese (µg/L) <10 50 7/29/04
Cadmium (µg/L) <2 5 7/29/04 pH (Units) 8.06 6.5 – 8.5 7/29/04
Chromium (µg/L) <10 100 7/29/04 Silver (µg/L) <4 100 7/29/04
Cyanide (µg/L) nd 200 7/29/04 Sodium (mg/L) 33.2 100-250 7/29/04
Fluoride (mg/L) 0.29 4 7/29/04 Sulfate (mg/L) 19.6 250 7/29/04
Mercury (µg/L) nd 2 7/29/04 Zinc (mg/L) 0.032 5 7/29/04
Nickel (µg/L) <10 100 7/29/04
Nitrate-N (mg/L) < 0.2 10 9/27/06 RADIOLOGICAL CONTAMINANTS (b)
Nitrite-N (mg/L) < 0.05 1 9/27/06 Analyte (Units) Results MCL Date
Selenium (µg/L) < 5 50 7/29/04 Adjusted Gross Alpha (pCi/L) <2.5 15 11/8/06
Thallium (µg/L) < 1 2 7/29/04 Radon Gas (pCi/L) 554 None 4/9/07
Radium 226 (pCi/L) <0.3 5 11/8/06
FIRST DRAW LEAD AND COPPER (a) Radium 228 (pCi/L) 0.7 5 11/8/06
Analyte Results AL Date Uranium (ug/L) <0.9 30 11/8/06
Lead (µg/L) 90th percentile sample < 5 15 5/20/05 UNREGULATED CONTAMINANTS (b)
Copper (mg/L) 90th percentile sample 0.10 1.3 5/20/05 Analyte (Units) Results Date
Alkalinity as CaCO3 (mg/L) 126 7/29/04
Microbiological Contaminants (a) Results MCL Date Specific Conductance (umhos/cm2) 325 7/29/04
Total Coliform Absent < 1/month Monthly Total Hardness as CaCO3 (mg/L) 90.9 7/29/04
E. coli Absent Absent Monthly
Chlorine Residual (mg/L) 0.28-0.7 <4.0 Weekly
  
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.