| The source of the PAC/Birch Hill East water supply is eight bedrock wells. Treatment is not rquired. | ||||||||||||
| PAC/BIRCH HILL EAST | ||||||||||||
| EPA # 0512010 | ||||||||||||
| Microbiological Contaminants | Units | MCLG | MCL | Highest monthly # of positive samples | Month | Violation Yes/No | Typical Source of Contaminant | |||||
| Total Coliform Bacteria | Positive/Negative | Negative | > 1 positive per month | 5 | JULY | YES | Naturally present in the environment | |||||
| Health Effects for Total Coliform Bacteria: Coliforms are bacteria which are naturally present in the environment and are used as an indicator that other, potentially-harmful, bacteria may be present. Coliforms were found in more samples than allowed and this was a warning of potential problems. | ||||||||||||
| Inorganic Contaminants | Units | MCLG | MCL | Highest Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | ||||
| Arsenic | ppb | 0 | 10 | 3 | 3 | 2006 | NO | Erosion of natural deposits; runoff from ocrchards; runoff from glass and electronics production wastes. | ||||
| Nitrate as Nitrogen | ppm | 10 | 10 | 0.91 | nd - 0.91 | 2006 | NO | Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits. | ||||
| Fluoride | ppm | 4 | 4 | 4.08 | 1.83 - 4.08 | 2006 | YES | Erosion of natural deposits | ||||
| Fluoride Health Language: Some people who drink water containing fluoride in excess of the MCL over many years could get bone disease, including pain and tenderness of the bones. Fluoride in drinking water at half the MCL of more may cause mottling of children's teeth, usually in children less than nine years old. Mottling, also know as dental fluorosis, may include brown staining and/or pitting of the teeth, and occurs only in developing teeth before they erupt from the gums. | ||||||||||||
| Radiological Contaminants | Units | MCLG | MCL | Highest Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | ||||
| Gross Alpha (Compliance) | pCi/L | 0 | 15 | 27 | nd - 27 | 2006 | NO | Erosion of natural deposits | ||||
| Combined Radium | pCi/L | 0 | 5 | 8.4 | nd - 8.4 | 2006 | NO | Erosion of natural deposits | ||||
| Uranium | ppb | 0 | 30 | 103.5 | nd - 103.5 | 2006 | NO | Erosion of natural deposits | ||||
| Radon | pCi/L | Not Regulated | 22,000 | 160 - 22,000 | 2003 | n/a | Erosion of natural deposits | |||||
| Radon is a radioactive gas that you can't see, taste or smell. It can move up through the ground and into a home through cracks and holes in the foundation. Radon can also get into indoor air when released from tap water from showering, washing dishes, and other household activities. It is a known human carcinogen. Breathing radon can lead to lung cancer. Drinking water containing radon may cause an increased risk of stomach cancer. Presently EPA is reviewing a standard for radon in water. | ||||||||||||
| Synthetic Organic Contaminants | Units | MCLG | MCL | Highest Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | ||||
| Di(2-ethylhexyl) phthalate | ppb | 0 | 6 | 3 | nd - 3.0 | 2006 | NO | Discharge from rubber and chemical factories | ||||
| Volatile Organic Contaminants | Units | MCLG | MCL | Highest Level Detected | Range | Year | Violation Yes/No | Typical Source of Contaminant | ||||
| Toluene | ppb | 1,000 | 1,000 | 75 | nd - 75 | 2006 | NO | Discharge from petroleum factories | ||||
| Methyl-Tertiary-Butyl Ether (MtBE) | ppb | 13 | 13 | 1.6 | nd - 1.6 | 2006 | NO | Gasoline additive | ||||
| Lead and Copper | Units | MCLG | AL | 90th percentile sample value | # sites above AL | Year | Violation Yes/No | Typical Source of Contaminant | ||||
| Lead | ppb | 0 | 15 | 25 | 1 of 5 | 2006 | YES | Corrosion of household plumbing system | ||||
| Infants and young children are typically more vulnerable to lead in drinking water than the general population. It is possible that lead levels at your home may be higher than at other homes in the community as a result of materials used in your home's plumbing. If you are concerned about elevated lead levels in your home's water, you may wish to have your water tested and flush your tap for 30 seconds to two minutes before using tap water. Additional information is available from the Safe Drinking Water Hotline (800-426-4791). Infants and children who drink water containing lead in excess of the action level could experience delays in their physical or mental development. Children could show slight deficits in attention span and learning abilities. Adults who drink this water over may years could develop kidney problems or high blood pressure. | ||||||||||||
| Copper | ppm | 1.3 | 1.3 | 0.073 | 0 of 5 | 2006 | NO | Corrosion of household plumbing system | ||||
| Source Assessment Information | ||||||||||||
| Summary of Susceptibility Factors | Well Locations | |||||||||||
| Source Name | Date | Low | Med | High | Lot 57 N - 10 feet north of Pump House | |||||||
| 001 - Bedrock Well # 2 | 9/20/00 | 9 | 2 | 1 | Lot 57 S - 15 feet north of Pump House | |||||||
| 002 - Bedrock Well # 3 | 9/20/00 | 9 | 2 | 1 | Lot 116 - 5 feet south of Pump House | |||||||
| 003 - Bedrock Well # 4 | 9/20/00 | 10 | 1 | 1 | Lot 126 - 5 feet southwest of Pump House | |||||||
| 004 - Bedrock Well # 5 | 9/20/00 | 9 | 2 | 1 | Lot 1 - 15 feet northwest of Pump House | |||||||
| 005 - Bedrock Well # 6 | 9/20/00 | 9 | 2 | 1 | Lot 38 | |||||||
| 006 - Bedrock Well # 1 | 9/20/00 | 8 | 2 | 2 | 150 feet northwest of Pump House near road | |||||||
| 008 - Bedrock Well # 1 - Birch Hill West | 9/20/00 | 9 | 2 | 1 | 100 feet west of Pump House | |||||||
| 009 - Bedrock Well # 2- Birch Hill West | 9/20/00 | 9 | 2 | 1 | ||||||||
| The complete Assessment Report is available for inspection. For more information visit NH DES's Drinking Water Source Assessment Program web site at www.des.state.nh.us/dwspp | ||||||||||||