| 2007 | |||||||||||||
| The Town of Hudson, through an Operations and Maintenance Agreement with Pennichuck Water Service Corporation, in Nashua, draws it's primary water supply from the Dame, Ducharme, and Weinstein wells, located in Litchfield. A supplementary source of water is the Pennichuck Pond System during peak demand periods. | |||||||||||||
| TOWN OF HUDSON | |||||||||||||
| EPA # 1201010 | |||||||||||||
| Inorganic Contaminants | Units | MCLG | MCL | Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | |||||
| Nitrate as Nitrogen | ppm | 10 | 10 | 1.85 | 0.95 to 1.85 | 2005 | NO | Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits. | |||||
| Barium | ppm | 2 | 2 | 0.011 | n/a | 2005 | NO | Erosion of natural deposits | |||||
| Radiological Contaminants | Units | MCLG | MCL | Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | |||||
| Gross Alpha (Compliance) | pCi/L | 0 | 15 | 1.4 | 1.1 - 1.4 | 2002 | NO | Erosion of natural deposits | |||||
| Radon | pCi/L | Not Regulated | 1029 | 576 - 1029 | 2002 | n/a | Erosion of natural deposits | ||||||
| Presently, the Environmental Protection Agency is reviewing a proposed standard of 300 pCi/L for radon in drinking water . Radon gas that is inhaled has been linked to lung cancer; however, it is not entirely clear at what level radon in your drinking water contributes to this and other possible carcinogenic effects. | |||||||||||||
| Inorganic Contaminants | Units | MCLG | AL | 90th percentile sample value | Year | Violation Yes/No | # sites above AL | Typical Source of Contaminant | |||||
| Lead | ppb | 0 | 15 | 7 | 2003 | NO | 1 of 30 | Corrosion of household plumbing system | |||||
| Copper | ppm | 1.3 | 1.3 | 0.68 | 2003 | NO | 1 of 30 | Corrosion of household plumbing system | |||||
| Organic Contaminants | Units | MCLG | MCL | Average Level Detected | Range | Year | Violation Yes/No | Typical Source of Contamination | |||||
| Total Trihalomethanes (TTHMs) | ppb | 0 | 80 | 10.5 | 6 to 18 | 2005 | NO | By-product of drinking water chlorination | |||||
| Haloacetic Acids (HAA5) | ppb | 0 | 60 | 3.1 | 1.7 to 4.3 | 2005 | NO | By-product of drinking water chlorination | |||||
| Volatile Organic Contaminants | Units | MRDLG | MRDL | Distribution System Average | Range | Year | Violation Yes/No | Typical Source of Contaminant | |||||
| Chlorine | ppm | 4 | 4 | 0.4 | 0.27 to 0.66 | 2005 | NO | Water additive used to control microbes | |||||
| Synthetic Organic Contaminants | Units | MCLG | MCL | Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | |||||
| Pentachlorophenol | ppb | 0 | 1 | 0.1 | nd to 0.1 | 2005 | NO | Discharge from wood preserving factories. | |||||
| Source Assessment Information | |||||||||||||
| Summary of Susceptibility Factors | |||||||||||||
| Source Name | Date | Low | Med | High | |||||||||
| Gravel Pack Well - Weinstein | 12/11/00 | 9 | 2 | 1 | |||||||||
| Gravel Pack Well - Dame | 12/11/00 | 9 | 1 | 2 | |||||||||
| Gravel Pack Well - Ducharme | 12/11/00 | 7 | 3 | 2 | |||||||||
| The complete Assessment Report is available for inspection. For more information call Gary Tetley or visit NH DES's Drinking Water Source Assessment Program web site at www.des.state.nh.us/dwspp | |||||||||||||