| Harvest Village | EPA # 1392290 | ||||||||
| Inorganic Contaminants | Date(s) Collected | Highest Detect | Range Detected | MCL or MRDL | MCLG or MRDLG | Violation Yes/No | Typical Source of Contaminant | ||
| Arsenic (ppb) | 7/7/10 | 3 | N/A | 10 | N/A | No | Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes. | ||
| Fluoride (ppm) | 7/7/10 | 0.30 | N/A | 4 | 4 | No | Erosion of natural deposits | ||
| Nitrate as Nitrogen (ppm | 7/7/10 | 0.8 | N/A | 10 | 10 | No | Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits. | ||
| Sodium (ppm) | 8/1/07 | 10.6 | N/A | Not Regulated | N/A | Natural sources; runoff from use as salt on roadways; by-product of treatment process | |||
| Volatile Organic Contaminants | |||||||||
| Chlorine (ppm) | 2010 | 0.3 Avg | 0.2 - 0.4 | 4 | 4 | No | Water additive used to control microbes | ||
| Total Trihalomethanes (ppb) | 8/4/10 | 3.5 | N/A | 80 | 0 | No | By-product of drinking water chlorination | ||
| Radiological Contaminants | |||||||||
| Radium 226 & 228 (pCi/L) | 2006 | 0.1 | nd - 0.1 | 5 | 0 | No | Erosion of natural deposits | ||
| Uranium (ppb) | 2006 | 1.9 | nd - 1.9 | 30 | 0 | No | Erosion of natural deposits | ||
| Radon (pCi/L) | 4/27/10 | 1,200 | N/A | Not Regulated | N/A | Erosion of natural deposits | |||
| Date(s) Collected | 90th Percentile | Action Level | MCLG | # of Sites Sampled | # Sites Above Action Level | Violation Yes/No | Typical Source of Contaminant | ||
| Lead (ppb) | 4/17/08 | < 5 | 15 | 0 | 6 | 0 | No | Corrosion of household plumbing system | |
| Copper (ppm) | 4/17/08 | 0.254 | 1.3 | 1.3 | 6 | 0 | No | Corrosion of household plumbing system | |
| What is the source of my drinking water? | |||||||||
| The sources of the Harvest Village water supply are two wells located between Elwood Road and Dan Hill Road in Londonderry, NH. Bedrock Well # 2 is located 220 feet southeast of the pump house. Bedrock Well # 3 is located 215 feet east of the pump house. Treatment consists of chlorination to disinfect the water and softening to reduce hardness. | |||||||||
| Source Water Assessment Summary | |||||||||
| Summary of Susceptibility Factors | |||||||||
| Source Name | Date | Low | Med | High | |||||
| Bedrock Well # 2 | 10/25/01 | 9 | 2 | 1 | |||||
| Bedrock Well # 3 | 10/25/01 | 8 | 2 | 2 | |||||
| The complete Assessment Report is available for review. For more information call Gary Tetley at 800-553-5191 ext. 2378 or visit NH Department of Environmental Services Drinking Water and Groundwater Bureau web site at http://www.des.nh.gov/organization/divisions/water/dwgb/dwspp/reports/index.htm | |||||||||