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2000 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	0	Present/Absent	0	Presence of Coliform in 5% of monthly samples	Naturally present in environment
Fecal Coliform & Excherichia Coli	N	0	Present/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	CWS Level Detected	Unit Measurement	MCLG	MCL	Likely Contamination Source
Turbidity	N	0.24	Highest yearly sample result NTU	n/a	TU(NTU)	Soil runoff
		100%	Lowest monthly % of samples meeting the Turbidity limit

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
Flouride	N	.20	Highest Monthly Average ppm	4	4	Erosion of natural deposits; water which promotes strong teeth; discharge from fertilizer and aluminum factories.
Flouride	N	0 to 20	Range in ppm	4	4
Nitrate (as Nitrogen)	N	.20	ppm	10	10	Runoff from fertilizer use; 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	34.0	Highest Monthly Average ug/l	60 ug/L		By-product of drinking water disinfection
		22.8 to 34.0	Range in ug/L
TTHM (Total trihalomethanes	N	37.2	Highest annual average ppm	0	100	By-product of drinking water chlorination
		17.9 to 45	Range in ppm

Lead and Copper Tap Monitoring

Contaminant	Violation Y/N	CWS Level Detected	Unit Measurement	MCLG	MCL	Likely Contamination Source
Lead	0	0.008	0.008	mg/L	0.015	Corrosion from household plumbing systems, erosion of natural deposits
Copper	0	0.16	0.17	mg/L	1.3	Corrosion from household plumbing systems, erosion of natural deposits. Leaching from wood preservatives
Community Water System in on a reduced or initial monitoring schedule as required to sample once every 3 years for lead and copper at the customer's tap. Our last monitoring period was in 1999. Our next required monitoring period is in the year 2002.

Total Organic Compounds - Investigative Testing Results (Derived primarily from decaying organic matter in runoff)

Source of Sample	Level of Detection	Unit of Measurement	Not regulated	Source
Raw Water (Lake)	5.21 mg/L	Highest Monthly mg/L	Not regulated	N/A
Raw Water (Lake)	1.19 to 5.21 mg/L	Range in mg/L	Not regulated	N/A
Entry Point to distribution piping (treated water)	2.04 mg/L	Highest Monthly mg/L	Not regulated	N/A
	1.13 to 2.04 mg/L	Range in mg/L

Unregulated Conaminants

Contaminant	Not Regulated	Level of Detection	Unit of Measurement	Source
Bromodichloromethane	Not regulated	2.6	ug/L	By-products of disinfection Components of Trihalomethanes
Chloroform	Not regulated	10.0	ug/L	By-products of disinfection Components of Trihalomethanes
Dibromochloromethane	Not regulated	.45	ug/L	By-products of disinfection Components of Trihalomethanes
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

COMMUNITY WATER SYSTEM did not have any violations in 2000 of the "Safe Drinking Water Act" reporting or monitoring regulations

To better understand the Water Monitoring Tables, listed below are abbreviations and definitions:
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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 one 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 one penny in $10,000,000.

Nephelometric Turbidity Unit (NTU)…Measures 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 a water system must follow.

Treatment Technique (TT)…A required process intended to reduce the contaminant level in drinking water.

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

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

Maximum Elevation Served (MSL)Million Gallons per Day (mgd)
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MCLs 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.