Waukegan Water Quality Report - 1999

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This year, as in years past, your tap water met all USEPA and state drinking water health standards. Our system vigilantly safeguards its surface water supply, and we are able to report that the department had no violation of a contaminant level or of any other water quality standard in the previous year. This report summarizes the quality of water that we provided last year, including details about where your water comes from, what it contains, and how it compares to standards set by regulatory agencies. We are committed to providing you with information because informed customers are our best allies.

If you have any questions about this report or concerning your water system, please contact Ken Sheets (Laboratory Supervisor) or Jeff Musinski (Water Director) at 599-2687. We want our valued customers to be informed about their water quality. If you would like to learn more, please feel welcome to schedule a tour of the facility (for tours please contact Sharon Pratt at 599-2687).

Waukegan uses surfacewater provided by Lake Michigan. The Water Treatment Facility utilizes two raw water intakes. Intake #1 is a 48" intake located 6250' into Lake Michigan. Intake #2 is a 24" intake located 2400' into
Lake Michigan, it is only used for emergencies.

The source water assessment for our supply has been not been completed by the Illinois EPA. Information provided by this assessment would indicate our water supply's vulnerability to contamination from industrial companies in the area.

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. USEPA/CDC guidelines on appropriate means to lessen the risk of infection by cryptosporidium and other microbial contaminants are available from the USEPA's Safe Drinking Water Hotline
(1-800-426-4791).

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 USEPA's Safe Drinking Water Hotline
(1-800-426-4791).

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs and wells. As water travels over the surface of the land or through the ground, it can dissolve naturally occurring minerals and radioactive material, and can pick up substances resulting from the presence of animals or from human activity. Possible contaminants consist of:

· 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;

· Organic chemical contaminant, including synthetic and volatile organic
chemicals, which are by-products of industrial processes and petroleum production, and

· Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff and residential uses.

· Radioactive contaminants, which may 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, USEPA prescribes regulations that 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.

In addition to the informational section of the Water Quality Report, we have included for your review several tables. The tables will give you a better picture of the contaminants that were detected in your water and the contaminants that were tested for but not detected.

1998
Water Quality Data

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.

Abbreviations: nd - not detectable at testing limits. n/a - not applicable. ppm - parts per million or milligrams per liter. ppb - parts per billion or micrograms per liter. ppt - parts per trillion, or nanograms per liter. ppq- parts per quadrillion, or picograms per liter. n/a - not applicable. NTU - Nephelometric Turbidity Unit, used to measure cloudiness in drinking water. % < 0.5 NTU -Percent samples less than 0.5 NTU. MFL - Million fibers per liter, used to measure asbestos concentration. mrem/yr. - millirems per year, used to measure radiation absorbed by the body. pCi/l - picocuries per liter, used to measure radioactivity. # pos/mo - number of positive samples per month. % pos/mo - percent positive samples per month.

In most cases, the "Level Found" column represents an average of sample result data collected during the CCR calendar year. The "Range of Detection's" column represents a range of individual sample results, from lowest to highest that were collected during the CCR calendar year. If a date appears in the "Date of Sample" column, the Illinois EPA requires monitoring for this contaminant less than once per year because the concentrations do not frequently change. If no date appears in the column, monitoring for this contaminant was conducted during the CCR calendar year.

Microbial Contaminants

Contaminant (units)

MCLG 

MCL

Level found 

Range of detections 

Violation 

Date of Sample 

 Typical source of contaminant 

 TURBIDITY (%<0.5 NTU)

 n/a

 TT

 100.000

 100.000 - 100.000
   

 Soil runoff

 TURBIDITY (NTU)

 n/a
 TT=5NTUmax

 0.22

 n/a
   

 Soil runoff

Radioactive Contaminants

Contaminant (units)

 MCLG 

 MCL

Level found 

Range of detections 

Violation  

 Date of Sample

 Typical source of contaminant  

BETA/PHOTON EMITTERS (pCi/l)

 0

 50*

 10.000
 10.000 - 10.000    

 Decay of natural & man-madedeposits

ALPHA EMITTERS (pCi/l)

 0

 15

 2.000

 2.000 - 2.000
   

 Erosion of natural deposits. Inorganic Contaminants

Inorganic Contaminants

Contaminant (units)

 MCLG

 MCL

Level found

Range of detections

Violation  

Date of Sample 

Typical source of contaminant 

 BARIUM (ppm)

 2

 2

 0.017

 0.017 - 0.017
   

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

 COPPER (ppm)

 1.3

 AL=1.3

 0.090
 0 exceeding AL    

Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives

 FLUORIDE (ppm)
  4

  4

 1.080

 1.080 - 1.080
   

 Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories

 LEAD (ppb)

 0

 AL=15

 5

 0 exceeding AL
   

Corrosion of household plumbing systems; Erosion of natural deposits

 NITRATE (AS NITROGEN)(ppm)

 10

 10

 1.100

 1.100 - 1.100
   

Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits

 NITRATE & NITRITE (ppm)

 10

 10

 1.100

 1.100 - 1.100
   

Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits

Volatile Organic Contaminants

 Contaminant (units)

MCLG 

  MCL

 Level found 

Range of detections 

 Violation 

Date of Sample 

 Typical source of contaminant 

TTHMs [TOTAL TRIHALOMETHANES] (ppb)

 n/a

100

 16.482

 12.000 - 27.000
   

 By-product of drinking water
chlorination

State Regulated Contaminants

 Contaminant (units)

MCLG 

  MCL

 Level found 

Range of detections 

 Violation 

Date of Sample 

 Typical source of contaminant 

SODIUM (ppm)

 n/a

n/a

 9.100

 9.100 - 9.100
   

 Erosion of naturally occurring deposits; Used as water softener


About the Data

TURBIDITY - Turbidity is a measure of the cloudiness of the water. We monitor it because it is a good indicator of
water quality and the effectiveness of our filtration system and disinfectants.

BETA/PHOTON EMITTERS - The MCL for beta particles is 4 mrem/year. EPA considers 50 pCi/l to be a level of concern for beta particles.

LEAD - 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 communityas 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 (800-426-4791).

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 the level is greater than 20 mg/l, and you are on a sodium-restricted diet, you should consult a physician.

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