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2002 Water Monitoring Charts

Microbiological Contaminants (Potentially harmful microorganisms that may be occuring or introduced by humans.)

Contaminant	Violation Y/N	CWS Level Detected	Unit Measurement	MCLG	MCL	Likely Contamination Source
Total Coliform Bacteria	N	1	Present	0	> 1 positive monthly sample	Naturally present in environment
Fecal Coliform & Excherichia Coli	N	0	Absent	0	A routine sample and repeat sample are total Coliform positive, and one is also fecal Coliform or E. Coli positive	Human and animal fecal waste

Clarity (The amount of suspended solids in water, when in access, can impede the chlorine disinfection process.) Turbidity is the measure of water cloudiness. We monitor it because it is a good indicator of the effectiveness of our filtration system.

Contaminant	Violation Y/N	Level Detected	Unit Measurement	MCLG	MCL	Likely Contamination Source
Turbidity	N	0.28	NTU	n/a	TT(NTU)	Soil runoff
Turbidity is a measure of the cloudiness of the water. We monitor it because it is a good indicator of the effectiveness of our filtration system	Lowest monthly % of samples meeting turbidity limit: 100%				> .3NTU in >5% of samples or any 1 sample >5 NTU

Inorganic Contaminents (Chemicals primarily introduced from groundwater through natural geologic formations or by human activity.)

Contaminant	Violation Y/N	CWS Level Detected	Unit Measurement	MCLG	MCL	Likely Contamination Source
Nitrate (as Nitrogen)	N	.26	ppm	10	10	Runoff from fertilizer user; leaching from septic tanks, sewage; erosion of natural deposits

Volitile Organic Contaminents (Contaminents such as pesticides produced from agricultural and industrial activities)

Contaminant	Violation Y/N	CWS Level Detected	Unit Measurement	MCLG	MCL	Likely Contamination Source
HAA5'S (Haloacetic Acids)	N	39.8	ppb	0	60	By-product of drinking water disinfection
		26.6 to 55.7
TTHM (Total trihalomethanes	N	52.1	ppb	NA	80
		26.7 to 111.6

On January 1st, 2002 monitoring for Haloacetic Acids (HAA5) changed from investigative status to compliance status. The average stated above reflects monitoring results from quarterly HAA5 sampling in 2002 only, and is not a running annual average. Next year our water quality report will indicate a running annual average for HAA5

Lead and Copper Tap Monitoring

Contaminant	Number of Sites Over Action Level	90th Percentile Result	95th Percentile Result	Unit of Measurement	Action Level	Likely Contamination Source
Lead	10	0.042	0.044	ppm	0.015	Corrosion from household plumbing systems, erosion of natural deposits
Copper	0	0.31	0.32	ppm	1.3
Community Water System in on a reduced or initial monitoring schedule and required to sample once every year for lead and copper at the customer's tap. Our last monitoring period was in 2002. Our next required monitoring period is in the year 2003. Infants and children who drink water containing lead in axcess 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. 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 (1-800-426-4791).

Unregulated Conaminants

Contaminant	Level Detected	Unit of Measurement	Major Source in Drinking Water
Bromodichloromethane	22	ppb	By-products of disinfection Components of Trihalomethanes
Chloroform	2.6
Dibromochloromethane	0.15
Methyl tertiary butyl ether [MTBE]	1.1	ppb	Octane enhancer in unleaded gasoline
Unregulated contaminents 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 occurance of unregulated contaminents in drinking water and deciding whether further regulation is warranted. MCL's (Maximum Contaminent Levels) and MCLGs (Maximum Contaminant Level Goals) have not been established for unregulated contaminants.

COMMUNITY WATER SYSTEM did not have any violations in 2002 of the "Safe Drinking Water Act" reporting or monitoring regulations

In this table you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms we've provided the following definitions:

Non-Detects (ND) - Laboratory analysis indicates that the constituent is not present.

Parts per million (ppm) or Milligrams per liter (mg/l) - One part per million corresponds to one minute in two years or a single penny in $10,000.

Parts per billion (ppb) or Micrograms per liter (ug/l) - One part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.

Nephelometric Turbidity Unit (NTU) - Nephelometric turbidity unit is a measure of the clarity of water. Turbidity in excess of 5 NTU is just noticeable to the average person.

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

Treatment Technique (TT) - (mandatory language) A treatment technique is a required process intended to reduce the level of a contaminant in drinking water.

Maximum Contaminant Level - The “Maximum Allowed” (MCL) is 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.

Maximum Contaminant Level Goal - The “Goal”(MCLG) is 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’s are set at very stringent levels. To understand the possible health effects described for many regulated constituents, a person would have to drink 2 liters of water every day at the MCL level for a lifetime to have a one-in-a-million chance of having the described health effect.