2007 WATER QUALITY REPORT

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2007 Water Quality Report for

CITY OF CRYSTAL FALLS

This report covers the drinking water quality for the City of Crystal Falls, for the calendar year 2007. Included are details about where your water comes from, what it contains, and how it compares to Environmental Protection Agency (EPA) and state standards.

 

In 2007 we transitioned, for water quality purposes, to purchasing water from Crystal Falls Township. An additional well, with our help, was drilled at their Lind site for added capacity.

 

We no longer need to treat the water for iron removal. Our well #1 has been retained as a standby well.

 

For more information, contact the clerk’s office at 401 Superior Avenue, Crystal Falls, MI 49920. Call 906-875-3212.

 

Contaminants and their presence in water: Drinking Water, including bottled water, may reasonably be expected to contain at least small amounts of some 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 EPA’s Safe Drinking Water Hotline (800-426-4791).

 

Vulnerability of sub-populations: Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune systems 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 (800-426-4791).

 

Sources of drinking water: The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. Our water comes from 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 stormwater 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 and residential uses.

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

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 stormwater runoff, and septic systems.

 

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

Water Quality Data

The table below lists all the drinking water contaminants that we detected during the 2007 calendar year. The presence of these contaminants in the water does not necessarily indicate that the water poses a health risk. Unless otherwise noted, the data presented in this table is from testing done January 1 – December 31, 2007. The State allows us to monitor for certain contaminants less than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year. All of the data is representative of the water quality, but some are more than one year old.

Terms and abbreviations used below:

Maximum Contaminant Level Goal (MCLG): 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.

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

N/A: Not applicable ND: not detectable at testing limit ppb: parts per billion or micrograms per liter ppm: parts per million or milligrams per liter pCi/l: picocuries per liter (a measure of radioactivity).

Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.

.

Regulated
Contaminant

MCL

MCLG

Level Detected

Sampled

Violation
Yes / No

Typical Source of Contaminant

Fluoride (ppm)

4

4

ND

8/07

No

Erosion of natural deposits

Barium (ppb)

2000

2000

10

4/03

No

Erosion of natural deposits

             
             

 

 

 

 

 

 

 

             
             
             

Unregulated Contaminant*

       

Sodium (ppm)

ND

8/07

No

Erosion of natural deposits.

Contaminant Subject to AL

Action Level

90% of Samples
< This Level

Sampled

   

Lead (ppb)

15

4

9/06

No

Distribution piping and fixtures.

Copper (ppb)

1300

812

9/06

No

Distribution piping and fixtures.

* Unregulated contaminants are those for which EPA has not established drinking water standards.

Mircobial Contaminants

MCL

 

Number of Detections

Violation

Source

Total Coliform Bacteria

1 positive monthly sample (Positive in > 5% of samples)

 

1*

No

Naturally present in the environment.

           

*We had one routine sample from the water system come back as positive for coliform bacteria in November. We collected the required three repeat samples – they were all negative for coliform. The extra samples in December were also negative for coliform.

For more information, contact the clerk’s office at 401 Superior Avenue, Crystal Falls, MI 49920. Call 906-875-3212.

 

For more information about safe drinking water, visit the U.S. Environmental Protection Agency at www.epa.gov/safewater/.