| Daniels Lake | EPA # 2452010 | ||||||||
| Inorganic Contaminants | Date(s) Collected | Highest Detect | Range Detected | MCL or MRDL | MCLG or MRDLG | Violation Yes/No | Typical Source of Contaminant | ||
| Sodium (ppm) | 4/28/10 | 25.8 | 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 | 0.47 Avg | 0.3 - 0.7 | 4 | 4 | No | Water additive used to control microbes | ||
| Total Trihalomethanes (ppb) | 4/28/10 | 9.4 | N/A | 80 | 0 | No | By-product of drinking water chlorination | ||
| Radiological Contaminants | |||||||||
| Compliance Gross Alpha (pCi/L) | 1/8/07 5/3/07 7/11/07 11/15/07 | 2.2 | nd - 2.2 | 15 | 0 | No | Erosion of natural deposits | ||
| Radium 226 & 228 (pCi/L) | 1/8/07 5/3/07 7/11/07 11/15/07 | 0.5 | nd - 0.5 | 5 | 0 | No | Erosion of natural deposits | ||
| Date Collected | 90th Percentile | Action Level | MCLG | # of Sites Sampled | # Sites Above Action Level | Violation Yes/No | Typical Source of Contaminant | ||
| Lead (ppb) | 6/16/09 | < 5 | 15 | 0 | 6 | 0 | No | Corrosion of household plumbing system | |
| Copper (ppm) | 6/16/09 | 0.327 | 1.3 | 1.3 | 6 | 0 | No | Corrosion of household plumbing system | |
| What is the source of my drinking water? | |||||||||
| The source of the Daniels Lake water supply is one bedrock well. Gravel Well # 1 is located within the pump house and has a depth of 33 feet and a yield of 40 gallons per minute. Treatment consists of the addition of sodium hydroxide for pH adjustment to control corrosion, continuous chlorination, zinc orthophosphate to control corrosion, and filtration to remove iron and manganese. | |||||||||
| Source Water Assessment Summary | |||||||||
| Summary of Susceptibility Factors | |||||||||
| Source Name | Date | Low | Med | High | |||||
| Gravel Well # 1 | 10/28/02 | 7 | 4 | 1 | |||||
| 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 | |||||||||