| Hardwood |
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EPA # 2542060 |
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| Inorganic
Contaminants |
Date(s)
Collected |
Highest Detect |
Range Detected |
MCL or MRDL |
MCLG or MRDLG |
Violation
Yes/No |
Typical Source of Contaminant |
| Barium
(ppm) |
10/19/09 |
0.020 |
N/A |
2 |
2 |
No |
Erosion of natural deposits |
| Fluoride
(ppm) |
10/19/09 |
0.30 |
N/A |
4 |
4 |
No |
Erosion of natural deposits |
| Sodium (ppm) |
10/19/09 |
17.3 |
N/A |
Not Regulated |
N/A |
Natural sources; runoff from use as salt on
roadways; by-product of treatment process |
| Volatile Organic
Contaminants |
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| Chlorine (ppm) |
2010 |
0.35 Avg |
0.1 - 0.7 |
4 |
4 |
No |
Water additive used to control microbes |
| Total
Trihalomethanes (ppb) |
8/9/10 11/3/10 |
42 |
21 - 42 |
80 |
0 |
No |
By-product of drinking water chlorination |
| Haloacetic
Acids (ppb) |
8/9/10 |
3.4 |
N/A |
60 |
0 |
No |
By-product of drinking water chlorination |
| Radiological
Contaminants |
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| Compliance Gross Alpha
(pCi/L) |
2005 |
2.9 |
N/A |
15 |
0 |
No |
Erosion of natural deposits |
| Radium 226
& 228 (pCi/L) |
2005 |
0.3 |
N/A |
5 |
0 |
No |
Erosion of natural deposits |
| Uranium
(ppb) |
2005 |
0.9 |
N/A |
30 |
0 |
No |
Erosion of natural deposits |
| Radon
(pCi/L) |
4/19/10 |
1,530 |
N/A |
Not Regulated |
N/A |
Erosion of natural deposits |
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Date(s)
Collected |
90th
Percentile |
Action Level |
MCLG |
# of Sites
Sampled |
# Sites Above
Action Level |
Violation
Yes/No |
Typical Source of Contaminant |
| Lead (ppb) |
3/13/09 |
< 5 |
15 |
0 |
8 |
0 |
No |
Corrosion of household plumbing system |
| Copper
(ppm) |
3/13/09 |
0.167 |
1.3 |
1.3 |
8 |
0 |
No |
Corrosion of household plumbing system |
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| What is the
source of my drinking water? |
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| The
sources of the Hardwood water supply are three wells located off Hickory Lane
in Windham, NH. Bedrock Well # 3 is located 300 feet southwest of the pump
house. Bedrock Well #4 is located 330
feet southwest of the pump house.
Bedrock Well #5 is located 345 feet south of the pump house. Treatment consists of chlorine for
disinfection, greensand filters to remove iron and manganese, softeners to
remove hardness, sodium hydroxide addition to increase pH in order to
optimize the treatment process and aid corrosion control, and phosphate addition for
additional corrosion control. |
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| Source Water
Assessment Summary |
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Summary of Susceptibility Factors |
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| Source
Name |
Date |
Low |
Med |
High |
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| Bedrock
Well # 3 |
6/10/05 |
8 |
1 |
3 |
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| Bedrock
Well # 4 |
6/10/05 |
8 |
1 |
3 |
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| Bedrock
Well # 5 |
6/10/05 |
8 |
1 |
3 |
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| 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 |
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