| LOCKE LAKE WATER SYSTEM |
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EPA # 0142010 |
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Peacham Road Pump Station |
Air Strip Pump Station |
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| Inorganic
Contaminants |
Units |
MCLG |
MCL |
Average Level
Detected |
Range |
Year |
Violation Yes/No |
Average Level Detected |
Range |
Year |
Violation Yes/No |
Typical Source of
Contaminant |
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| Arsenic |
ppb |
n/a |
10 |
6 |
3 - 8 |
2010 |
NO |
5 |
nd - 13 |
2010 |
NO |
Erosion of
natural deposits; runoff from orchards; runoff from glass and electronics
production wastes. |
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| Arsenic: While your
drinking water meets EPA’s standard for arsenic, it does contain low levels
of arsenic. EPA’s standard balances the current understanding of arsenic’s
possible health effects against the cost of removing arsenic from drinking
water. EPA continues to research the health effects of low levels of arsenic
which is a mineral know to cause cancer in humans at high concentrations and
is linked to other health effects such as skin damage and circulatory
problems. |
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| Barium |
ppm |
2 |
2 |
0.0085 |
nd - 0.017 |
2008 |
NO |
0.024 |
n/a |
2008 |
NO |
Discharge of
drilling wastes; discharge from metal refineries; erosion of natural
deposits. |
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| Sodium |
ppm |
Not Regulated |
15.9 |
14.7 - 17.1 |
2008 |
NO |
18.1 |
n/a |
2008 |
NO |
Natural
sources; runoff from use as salt on roadways. |
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| Fluoride |
ppm |
4 |
4 |
0.36 |
0.25 - 0.47 |
2008 |
NO |
0.84 |
n/a |
2008 |
NO |
Erosion of natural deposits |
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| Radiological Contaminants |
Units |
MCLG |
MCL |
Average Level
Detected |
Range |
Year |
Violation Yes/No |
Average Level Detected |
Range |
Year |
Violation Yes/No |
Typical
Source of Contaminant |
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| Gross
Alpha (Compliance) |
pCi/L |
0 |
15 |
nd |
n/a |
2009 |
NO |
5 |
n/a |
2002 |
NO |
Erosion of
natural deposits |
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| Combined
Radium |
pCi/L |
0 |
5 |
0.5 |
n/a |
2009 |
NO |
nd |
n/a |
2005 |
NO |
Erosion of
natural deposits |
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| Uranium |
ppb |
0 |
30 |
1 |
n/a |
2009 |
NO |
n/a |
n/a |
n/a |
n/a |
Erosion of
natural deposits |
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| Radon |
pCi/L |
Not Regulated |
2,110 |
2,110 |
2008 |
n/a |
4,730 |
n/a |
2008 |
NO |
Erosion of
natural deposits |
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| Volatile
Organic Contaminants |
Units |
MRDLG |
MRDL |
Average
Level Detected |
Range |
Year |
Violation
Yes/No |
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Typical
Source of Contaminant |
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| Chlorine |
ppm |
4 |
4 |
0.35 |
0.15 - 0.75 |
2010 |
NO |
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Water additive used to control microbes |
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| Total Trihalomethanes |
ppb |
0 |
80 |
0.5 |
n/a |
2010 |
NO |
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By-product of drinking water chlorination |
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| Lead
and Copper |
Units |
MCLG |
AL |
90th percentile
sample value |
# sites
above AL |
Year |
Violation
Yes/No |
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Typical
Source of Contaminant |
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| Copper |
ppm |
1.3 |
1.3 |
0.32 |
0 of 11 |
2009 |
NO |
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Corrosion of household plumbing system |
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| What is the
source of my drinking water? |
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| The source of the PAC/Locke Lake Water System is seven
wells. Treatment currently consists of
arsenic removal at the Airstrip pump station.
The Peacham Road pump station currently has arsenic removal and
chlorine to kill bacteria. |
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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 |
WELL LOCATION |
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| 003 - Bed
Rock Well # 3 |
1/15/03 |
9 |
1 |
2 |
195 feet
southeast of pump station 1 Golf Course |
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| 009 - Bed
Rock Well # 9 |
1/15/03 |
9 |
1 |
2 |
295 feet south of pump station 1 Golf Course |
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| 010 - Bed
Rock Well # 10 |
1/15/03 |
8 |
1 |
3 |
2500
feet northnorthwest of pump station 2 Airstrip |
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| 011 - Bed
Rock Well # 11 |
1/15/03 |
9 |
1 |
2 |
475 feet southsouthwest of pump station 1 Golf Course |
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| 016 - Bed
Rock Well # 13 |
1/15/03 |
9 |
2 |
1 |
121 feet
east of Peacham Rd |
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| 017 - Bed
Rock Well # 14 |
1/15/03 |
9 |
2 |
1 |
300 feet
south of Peacham Rd |
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| 018 - Bed
Rock Well # 15 |
No Information available at
this time |
565 feet
south west of Peacham Rd. Pump House |
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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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