Annual Drinking Water Quality Report

 


INDIAN CREEK HOMEOWNERS AND WATER ASSN.

IL1135250



Annual Water Quality Report for the period of January 1 to
December 31, 2006

This report is intended to provide you with important information about your drinking water and the efforts made by the INDIAN CREEK HOMEOWNERS AND WATER ASSN. water system to provide safe drinking water. The source of drinking water used by INDIAN CREEK HOMEOWNERS AND WATER ASSN. is Ground Water.

For more information regarding this report contact:

Name ááááááááKurt Pattiáááá ááá

Phone ááááááá728-2065

Este informe contiene informaciˇn muy importante sobre el agua que usted bebe. Trad˙zcalo ˇ hable con alguien que lo entienda bien.

 

Source of Drinking Water

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 pickup 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.

 

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 at (800) 426-4791.

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. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

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 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 (800-426-4791).

 

 

 

Source Water Assessment

A Source Water Assessment summary is included below for your convenience.

To determine Indian Creek Homeowner and Water Association's susceptibility to groundwater contamination, a Well Site Survey, published in 1992 by the Illinois EPA, and Source Water Protection Plan were reviewed. Based on the information contained in these documents, no potential sources of groundwater contamination are present that could pose a hazard to groundwater pumped by the Indian Creek Homeowner and Water Association community water supply well. Based upon this information, the Illinois EPA has determined that Indian Creek Homeowner and Water Association Well #1 is not susceptible to IOC, VOC, or SOC contamination. This determination is based on a number of criteria including: monitoring conducted at the well; monitoring conducted at the entry point to the distribution system; and the available hydrogeologic data for the well. In anticipation of the U.S. EPA's proposed Ground Water Rule, the Illinois EPA has determined that Indian Creek Homeowner and Water Association's community water supply well is not vulnerable to viral contamination. This determination is based upon the evaluation of the following criteria during the Vulnerability Waiver Process: the community's well is properly constructed with sound integrity and proper site conditions; there is a hydrogeologic barrier that restricts pathogen movement; all potential routes and sanitary defects have been mitigated such that the source water is adequately protected; monitoring data did not indicate a history of disease outbreak; and the sanitary survey of the water supply did not indicate a viral contamination threat. However, having stated this, the U.S. EPA is proposing to require States to identify systems in karst, gravel and fractured rock aquifer systems as sensitive. Water systems utilizing these aquifer types would be required to perform routine source water monitoring. Because the community's well is constructed in a confined aquifer, which should provide an adequate degree of protection to prevent the movement of pathogens into the well, well hydraulics were not considered to be a significant factor in the vulnerability determination. The Illinois Environmental Protection Act provides minimum protection zones of 200 feet for the Indian Creek Homeowner and Water Association's well. These minimum protection zones are regulated by the Illinois EPA. Because the facility has proceeded with source water protection efforts, the facility has received a monitoring waiver for its well. To further minimize the risk to the facility's groundwater supply, the Illinois EPA recommends that three additional activities be assessed. First, the facility may wish to have a "maximum setback zone" ordinance enacted. These ordinances are authorized by the Illinois Environmental Protection Act and allow county and municipal officials the opportunity to provide additional protection up to a fixed distance, normally 1,000 feet, from their wells. Second, the water supply staff may wish to revisit their contingency planning documents. Contingency planning documents are a primary means to ensure that, through emergency preparedness, a community will minimize their risk of being without safe and adequate water. Finally, the water supply staff is encouraged to review their cross connection control program to ensure that it remains current and viable. Cross connections to either the water treatment plant or in the distribution system may negate all of the source water protection initiatives provided by the community and circumvent the natural protection provided to the aquifer.

 

 

 

2006 Regulated Contaminants Detected

 

 

 

Lead and Copper

Date Sampled: 12/31/2004

Definitions:

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

Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALG's allow for a margin of safety.

Lead MCLG

Lead Action Level (AL)

Lead 90th Percentile

# Sites Over Lead AL

Copper MCLG

Copper Action Level (AL)

Copper 90th Percentile

# Sites Over Copper AL

Likely Source of Contamination

 

0

15 ppb

<5 ppb

0

1.3 ppm

1.3 ppm

<0.100 ppm

0

Corrosion of household plumbing systems; Erosion of natural deposits

Edit

 

Water Quality Test Results

Definitions: The following tables contain scientific terms and measures, some of which may require explanation.Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in drinking water. MCL's are set as close to the Maxium Contaminant Level Goal as feasible using the best available treatment technology.Maximum Contaminant Level Goal (MCLG): The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLG's allow for a margin of safety.mg/l: milligrams per litre or parts per million - or one ounce in 7,350 gallons of water.ug/l: micrograms per litre or parts per billion - or one ounce in 7,350,000 gallons of water.na: not applicable.Avg: Regulatory compliance with some MCLs are based on running annual average of monthly samples.Maximum Residual Disinfectant Level (MRDL): The highest level of disinfectant allowed in drinking water.Maximum Residual Disinfectant Level Goal (MRDLG): The level of disinfectant in drinking water below which there is no known or expected risk to health. MRDLG's allow for a margin of safety.

 

Regulated Contaminants

Disinfectants & Disinfection By-Products

Collection Date

Highest Level Detected

Range of Levels Detected

MCLG

MCL

Units

Violation

Likely Source Of Contaminant

 

TTHMs [Total Trihalomethanes]

7/11/2006

0

Not Applicable

N/A

80

ppb

No

By-product of drinking water chlorination

Edit

Total Haloacetic Acids (HAA5)

7/11/2006

1.1

Not Applicable

N/A

60

ppb

No

By-product of drinking water chlorination

Edit

Chlorine

12/31/2006

1.1334

0.8363 - 1.1334

MRDLG=4

MRDL=4

ppm

 

Water additive used to control microbes

Edit

 

Inorganic Contaminants

Collection Date

Highest Level Detected

Range of Levels Detected

MCLG

MCL

Units

Violation

Likely Source Of Contaminant

 

Arsenic
While your drinking water meets EPA"s standard for arsenic, it does contain low levels of arsenic. EPA"s standard balances the current understanding of arsenic"s possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels of arsenic which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.

10/3/2006

7

Not Applicable

0

10

ppb

No

Erosion of natural deposits; Runoff from orchards; Runoff from electronics production wastes

Edit

Barium

10/3/2006

0.26

Not Applicable

2

2

ppm

No

Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits

Edit

Fluoride

10/3/2006

0.58

Not Applicable

4

4

ppm

No

Erosion of natural deposits; Water additive which promotes strong teeth; Fertilizer discharge

Edit

 

State Regulated Contaminants

Collection Date

Highest Level Detected

Range of Levels Detected

MCLG

MCL

Units

Violation

Likely Source Of Contaminant

 

Sodium
There is not a state or federal MCL for sodium. Monitoring is required to provide information to consumers and health officials that are concerned about sodium intake due to dietary precautions. If you are on a sodium-restricted diet, you should consult a physician about this level of sodium in the water.

10/3/2006

96

Not Applicable

N/A

N/A

ppm

No

Erosion of naturally occuring deposits; used in water softener regeneration

Edit

Iron
This contaminant is not currently regulated by USEPA. However, the state has set an MCL for this contaminant for supplies serving a population of 1000 or more.

10/3/2006

2900

Not Applicable

N/A

1000

ppb

No

Erosion from naturally occurring deposits

Edit

Manganese
This contaminant is not currently regulated by USEPA. However, the state has set an MCL for this contaminant for supplies serving a population of 1000 or more.

10/3/2006

29

Not Applicable

N/A

150

ppb

No

Erosion of naturally occurring deposits

Edit

Note: The state requires monitoring of certain contaminants less than once per year because the concentrations of these contaminants do not change frequently. Therefore, some of this data may be more than one year old.

 

 

 

 

EPA has reviewed the drinking water standard for arsenic because of special concerns that it may not be stringent enough. Arsenic is a naturally-occurring mineral known to cause cancer in humans at high concentrations.