Consumer Confidence Report

 

Water Quality Report – 2017

New London/Springfield Water System Precinct

 

 

What is the source of my drinking water?

The water is provided from six(6) gravel packed wells, drawing from an aquifer beneath Colby Point in the middle of Little Lake Sunapee 

How can I get involved?

The New London/Springfield Water System Precinct is served by an elected Board of Commissioners which meets the Monday of the first full week of each month at 4:00p.m. These meetings, which the public is welcome to attend, are held at the Precinct office on Old Dump Road in New London. The Commissioners can be reached by calling 526-4441

Why are contaminants in my water?

Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of contaminants.  The presence of contaminants does not necessarily indicate that water poses a health risk.  More information about contaminants and potential health effects can be obtained by calling the US Environmental Protection Agency’s Safe Drinking Water Hotline (1-800-426-4791).

Violations and Other information:

The Water Precinct chlorinates, to prevent Total Coliform violations, with a target dose of 0.70 mg/l of chlorine leaving the pump station.

Aqua Cross is a poly/ortho blend of phosphate that is used to control corrosion within the distribution system and to reduce lead and copper leaching in household plumbing. It is added at the dosage rate of 1 part per million.

A 25% caustic solution of Sodium Hydroxide is added to maintain a PH of 7.0

No fluoride is added to the water.

Do I need to take special precautions?

Some people may be more vulnerable to contaminants in drinking water than the general population.  Immunocompromised persons, such as persons with cancer undergoing chemotherapy, persons who have undergone organ trans-plants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections.  These people should seek advice about drinking water from their health care providers.  EPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (1-800-426-4791).

Definitions:

MCLG: Maximum Contaminant Level Goal, or the level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

MCL: Maximum Contaminant Level: The highest level of a contaminant that is allowed in drinking water. They are set as close to the MCLGs as feasible using the best available treatment technology.

AL: Action Level, or the concentration of a contaminant which, when exceeded, triggers treatment or other requirements which a water system must follow.

TT: Treatment Technique, or a required process intended to reduce the level of a contaminant in drinking water.

MRDLG: Maximum residual disinfectant level goal or the level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLG’s do not reflect the benefits of the use of disinfectants to control microbial contaminants (for water systems that use chlorine).

MRDL: Maximum Residual Disinfectant Level or the highest level of a disinfectant allowed in drinking water. There is convincing evidence that the addition of a disinfectant is necessary for control of microbial contaminants (for water systems that use chlorine)...

Abbreviations:

ppm: parts per million    ppb: parts per billion    ppt: parts per trillion    ppq: parts per quadrillion    pCi/L: pico curies per liter   NTU: Nephelometric Turbidy Unit NA – Not applicable    nd: not detectable at testing limits    AL: Action Level    TT: Treatment Technique       

Sample Dates: The results for detected contaminants listed below are from the most recent monitoring done in compliance with regulations ending with the year 2017. Results prior to 2017 will include the date the sample was taken. The State of New Hampshire allows water systems to monitor for some contaminants less than once per year because the concentrations of these contaminants do not change frequently. Thus some of the data present, though representative, may be more than one year old.

Turbidity: is a measure of the cloudiness of the water. It is monitored by surface water systems because it is a good indicator of water quality and thus helps measure the effectiveness of Treatment

System Name: New London-Springfield Water System Precinct  

EPA ID: 1721010

2017

Additional Testing

Additional Tests & Secondary MCLs (SMCL)

 

       Results

   Date

Treatment technique

(if any)

AL (Action Level), SMCL or AGQS (Ambient groundwater quality standard)

Specific contaminant criteria

Radon* (pCi/L)

     590 pCi/L

6/7/2000

     None

     4000 pCi/L

 

* If present, you must include the statement currently in the text portion.

If a drinking water public notice, MCL, Monitoring/Reporting, or treatment technique violation has occurred,

the following table should be used to explain the violation and health effects:

Violations

VIOLATIONS

   Date of          violation

  Explain  violation

Length of  violation

   Action taken to           resolve

     Health Effects  (Env-Dw 811.21)

 

DETECTED WATER QUALITY RESULTS

         

 

Contaminant

(Units)

 

Level

Detected (please list date sampled

if prior to current reporting year)

 

  MCL

 

  MCLG

 

Violation

 YES/NO

   Likely Source of

    Contamination

Health Effects of Contaminant

Microbiological Contaminants

Total

Coliform

Bacteria

     Present

 

  < 36  samples 0 were positive

     0

   Yes

 

Naturally present in the environment

 

Coliforms are bacteria that 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.

Radioactive Contaminants

Combined

Radium 226 + 228 (pCi/L)          

       

        <1.0

   10/10/2007

 

 

     5

     0 

    NO

Erosion of natural deposits

Some people who drink water containing radium 226 or 228 in excess of the MCL over many years may have an increased risk of getting cancer.

Inorganic Contaminants

Barium

(ppb)

     

       0.005

    5/20/2013

     2

     2 

 

     NO

 

Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits.

Some people who drink water containing barium well in excess of the maximum contaminant level (MCL) for many years could experience an increase in their blood pressure.

Chlorine

(ppm)

         0.11      (12 Month Avg)

       0.26                  (Max)

  MRDL        4

 MRDLG       4

     NO

 

Water additive used to control microbes

 

Some people who use water containing chlorine well in excess of the MRDL could experience irritating effects to their eyes and nose. Some people who drink water containing  chlorine well in excess of the MRDL could experience stomach discomfort.

 

Copper

(ppm)

        .387

   None of the    sampling sites exceeded the AL.

     7/9/2013

   AL         1.3

 

    1.3

 

    NO

Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives

Copper is an essential nutrient, but some people who drink water containing copper in excess of the action level over a relatively short amount of time could experience gastrointestinal distress. Some people who drink water containing copper in excess of the action level over many years could suffer liver or kidney damage. People with Wilson’s Disease should consult their personal doctor.

Lead

(ppb)

      .0439

   One of the  sampling sites exceeded the AL.

    7/9/2013

 

 

    AL

  0.015

 

     0

     NO

Corrosion of household plumbing systems, erosion of natural deposits

(15 ppb in more than 5%) Infants and young children are typically more vulnerable to lead in drinking water than the general population. It is possible that lead levels at your home may be higher than at other homes in the community as a result of materials used in your home’s plumbing. If you are concerned about elevated lead levels in your home’s water, you may wish to have your water tested and flush your tap for 30 seconds to 2 minutes before using tap water. Additional information is available from the Safe Drinking Water Hotline (800-426-4791).

(above 15 ppb) Infants and children who drink water containing lead in excess of the action level could experience delays in their physical or mental development. Children could show slight deficits in attention span and learning abilities. Adults who drink this water over many years could develop kidney problems or high blood pressure.

Volatile Organic Contaminants

Haloacetic Acids (HAA)

(ppb)

        ND

   8/16/2012

 

  0.060

 

    NA

 

     NO

By-product of drinking water disinfection

Some people who drink water containing haloacetic acids in excess of the MCL over many years may have an increased risk of getting cancer.

Total Trihalomethanes

(TTHM)

(Bromodichloro-methane

Bromoform

Dibromomethane

Chloroform)

(ppb)

       0.026     8/16/2012

  0.080

   N/A

     NO

By-product of drinking water chlorination

Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.

Unregulated Contaminants

Sodium    10mg/l 5mg/l N/A      NO

Naturally occuring

in ground water

For individuals on a very low sodium diet (500 mg/day), EPA recommends thatdrinking-water sodium not exceed 20 mg/L. In order to avoid adverse effects on taste, EPA recommends that sodium concentrations in drinking water not exceed 30 to 60 mg/L, a threshold for taste-sensitive segments of the population

Description of Drinking Water Contaminants:

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally-occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity. Contaminants that may be present in source water include:

Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.

Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm water runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming

Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban storm water runoff, and residential uses.

Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can, also, come from gas stations, urban storm water runoff, and septic systems.

Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas production and mining activities.

In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. The United States Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

Radon: Radon is a radioactive gas that you can’t see, taste or smell. It can move up through the ground and into a home through cracks and holes in the foundation. Radon can also get into indoor air when released from tap water from showering, washing dishes, and other household activities. It is a known human carcinogen. Breathing radon can lead to lung cancer. Drinking water containing radon may cause an increased risk of stomach cancer. Presently the EPA is reviewing a standard for radon in water.

Lead: If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. This water system is responsible for high quality drinking water, but can not control the variety of materials used in your plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing cold water your tap for at least 30 seconds before using water for drinking or cooking. Do not use hot water for drinking and cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead. 

Source Water Assessment Summary:

The NH Department of Environmental Services has prepared a Source Water Assessment Report for the source(s) serving this community water system, assessing the sources’ vulnerability to contamination. The results of the assessment, prepared in 2001, are as follows:

(GPW2,3,4,5,6,&7) received (0) high susceptibility ratings, (0) medium susceptibility ratings, and (12) low susceptibility ratings.

The complete Assessment Report is available for review at  NLSWSP, 73 Old Dump Road  in New London. For more information call (Rob @ 526-4441or rob.nlswp@tds.net ) or visit NH Department of Environmental Services Drinking Water and Groundwater Bureau web site at http://des.nh.gov/organization/divisions/water/dwgb/index.htm