QUALITY ON TAP

2006 Annual Water Quality Report

City Light, Gas and Water

Kennett , MO

PWS ID# MO 4010417

This report is intended to provide you with important information about your drinking water and the efforts made to provide safe drinking water.

At City Light, Gas & Water the quality and safety of the water we produce for our customers is a top priority. Specialists in our own lab perform several tests daily to make certain our water is meeting quality standards. In addition to our own tests, we send at least ten samples per month to the State Department of Health Lab for bacteriological evaluation. Other samples are sent less frequently for a myriad of other tests ranging from Alkalinity to Zinc.

Kennett's Water Source

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs and groundwater 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.

Kennett's water supply is taken from four ground water wells that extend 90 to 100 feet below the surface. These wells have a combined yield of over 3,000 gallons per minute.

The water produced by these wells is of naturally high quality and free from harmful levels of chemicals and bacteria. However it does contain levels of iron and dissolved calcium which makes treatment of the water necessary to remove excess levels of these substances. After the water has undergone treatment at the plant, it is pumped to the distribution system for storage into one of six water tanks for consumption by you, our customers. The tanks have a total storage capacity of 2.2 million gallons of water for the City of Kennett .

The Department of Natural Resources conducted an assessment of our source water to determine its susceptibility to contamination. The assessment is a three-step process of identifying an area around our well head(s), inventorying potential sources of contaminants within that area (a one-half mile radius around the wellhead(s)) and a look at the adequacy of well construction. The assessment can be used to develop a wellhead protection program to protect this valuable resource. If you want to know more about the assessment or wish to participate on a watershed protection team to protect this valuable resource, then please call 573-888-5366.

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 Environmental Protection Agency's Safe Drinking Water Hotline (800-426-4791).

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, urban stormwater 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 stormwater 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, the Department of Natural Resources prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. Department of Health regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

The Missouri Department of Natural Resources regulates our water system and requires us to test our water on a regular basis to ensure its safety. Our system has been assigned the identification number MO4010417 for the purposes of tracking our test results. Last year, we tested for a variety of contaminants. The detectable results of these tests are show on the following page. Any violations of state requirements or standards will be further explained later in this report.

Additional Information:

Some people may be more vulnerable to contaminants in drinking water that 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 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 microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791).

If you would like more information about the decision-making process that affect drinking water quality or if you have further questions about your drinking water report, call CLGW at 573-888-5366 to inquire about scheduled meetings or contact persons.

Contaminants Report

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, or 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. 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. – 90 th percentile: For lead and copper testing. 10% of test results are above this level and 90% are below this level. – Level Found: is the average of all test results for a particular contaminant. – Range of Detections : Shows the lowest and highest levels found during a testing period. If only one sample was taken, then this number equals the Level Found. MRLDG: Maximum Residual Disinfectant Level Goal, or the level of a drinking water disinfectant below which there is no known or expected risk to health. MRDL: Maximum Residual Disinfectant Level, or the highest level of a disinfectant allowed in drinking water.

Abbreviations:

PPB: parts per billion or micrograms per liter. ppm: parts per million or milligrams per liter. n/a: not applicable. NTU: Nephelometric Turbidity Unit, used to measure cloudiness in drinking water. MFL: Million fibers per liter, used to measure asbestos concentration. nd: not detectable at testing limits.

The state has reduced monitoring requirements for certain contaminants to less often than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year. Records with a sample year more than one year old are still considered representative.

Regulated Contaminants

During the 2006 calendar year, we had the below noted violation of drinking water regulations. 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. However, no potentially harmful bacteria were found in the water. There are no additional required health effects violation notices. The testing site in which the coliform positive sample was derived is on a gravel road and collected inside a hole in the ground. Dirt or dust particles from the wind are possibilities that could have caused our sample to be positive for coliform. As a result, and after determining the water is safe in this area, the sampling site has been relocated.

Unregulated Contaminants

Unregulated contaminants are those for which the EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist the EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted. Information on all the contaminants that were monitored, whether regulated or unregulated, can be obtained by contacting us at 573-888-5366 or visit our website at www.clgw.net.

City Light, Gas and Water

Kennett , MO

PWS ID# MO 4010417

Optional Monitoring (not required by EPA)

Monitoring is not required for optional contaminants.