| Forest Ridge | EPA # 0802040 | ||||||||
| Microbiological Contaminants | Highest # Positive in a month | MCL | MCLG | Violation Yes/No | Typical Source of Contaminant | ||||
| Total Coliform Bacteria | 2 in September | 1 | 0 | No | Naturally present in the environment | ||||
| Health Effects: 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 | Date(s) Collected | Highest Detect | Range Detected | MCL or MRDL | MCLG or MRDLG | Violation Yes/No | Typical Source of Contaminant | ||
| Barium (ppm) | 7/29/08 | 0.017 | N/A | 2 | 2 | No | Erosion of natural deposits | ||
| Sodium (ppm) | 7/29/08 | 17.7 | 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 | 0.64 Avg | 0.2 - 1.3 | 4 | 4 | No | Water additive used to control microbes | ||
| Total Trihalomethanes (ppb) | 8/31/09 | 9.2 | N/A | 80 | 0 | No | By-product of drinking water chlorination | ||
| Radiological Contaminants | |||||||||
| Radium 226 & 228 (pCi/L) | 2/4/06 5/30/06 | 0.6 | 0.1 - 0.6 | 5 | 0 | No | Erosion of natural deposits | ||
| Uranium (ppb) | 2/4/06 5/30/06 | 0.8 | nd - 0.8 | 30 | 0 | No | Erosion of natural deposits | ||
| Radon (pCi/L) | 4/21/10 | 616 | 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) | 2/12/10 | < 5 | 15 | 0 | 9 | 0 | No | Corrosion of household plumbing system | |
| Copper (ppm) | 2/12/10 | 0.88 | 1.3 | 1.3 | 9 | 1 | No | Corrosion of household plumbing system | |
| What is the source of my drinking water? | |||||||||
| Forest Ridge obtains its water from two wells. Bedrock well # 1 is located 54 feet southwest of the pumphouse and bedrock well # 2 is located 14 feet northwest of the pumphouse. A greensand filter along with chlorine is used to remove iron and manganese from the source water. | |||||||||
| Source Water Assessment Summary | |||||||||
| Summary of Susceptibility Factors | |||||||||
| Source Name | Date | Low | Med | High | |||||
| Bedrock Well # 1 | 11/6/07 | 8 | 4 | 0 | |||||
| Bedrock Well # 2 | 11/6/07 | 8 | 4 | 0 | |||||
| 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 | |||||||||