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WATER QUALITY REPORT
This report is intended to provide you with important information about your drinking water and the efforts made by the NORTH PARK PWD water system to provide safe drinking water. The source of drinking water used by NORTH PARK PWD is Ground.
For more information regarding this report, contact:
John Donahue, (815) 633-5461
Este informe contiene informacion muy importante sobre el aqua que usted bebe. Traduzcalo o hable con alguien que lo entienda bien.
Source of Drinking Water
The sources of drinking water (both tap 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.
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.
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 live stock 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.
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 Hotline (800-426-4791).
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2007 Source Water Assessment Availability
A Source Water Assessment summary is included below for your convenience.
To determine North Park Public Water District's susceptibility to groundwater contamination, a Well Site Survey, published in 1989 by the Illinois EPA, and a Wellhead Protection Management Plan were reviewed. Based on the information obtained in these documents, several potential sources of contamination are present that could pose a hazard to groundwater utilized by the North Park Public Water District community water supply wells.
The community's source water is susceptible to VOC contamination although detection of any quantifiable levels in the water has not occurred. NPPWD's source water is not susceptible to SOC contamination. This determination is based on the location of potential sources of contamination and the land use within the recharge areas of the wells (see the Potential Sources of Contamination section in the Source Water Assessment Program Fact Sheet). However, as a result of monitoring at the wells and entry point to the distribution system, the land use activities, and source water protection initiatives by the NPPWD (refer to the following section of this report), the NPPWD's source water is not susceptible to IOC contamination.
Furthermore, in anticipation of the U.S. EPA's proposed Groundwater Water Rule, the Illinois EPA has determined that NPPWD's community water supply wells are not susceptible to viral contamination. This determination is based upon the completed evaluation of the following criteria used in the Vulnerability Waiver Process: the community's wells are properly constructed with sound integrity and proper site conditions; 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. 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 and these systems must perform routine source water monitoring." Because a portion of the community's wells are open to unconfined sand and gravel aquifer, the Illinois EPA evaluated the well hydraulics associated with NPPWD's well field. Well #2 has approximately 140 feet of overburden; wells #3, #4, and #5 have approximately 80 feet of overburden; and wells #6 and #6A have approximately 550 feet of overburden (well #2 is about 190 feet deep with the last 50 feet open to the aquifer; wells #3, #4, and #5 are approximately 240 feet deep with the last 160 feet open to the aquifer; and wells #6 and #6A are about 780 feet deep with the last 230 feet open to the aquifer) above the portion of the aquifer contributing a significant quality of groundwater to the screened interval. This should provide an adequate degree of filtration to prevent the movement of pathogens into the wells. The Illinois Environmental Protection Act provides minimum protection zones of 200 and 400 feet for North Park Public Water District's wells. These minimum protection zones are regulated by the Illinois EPA. To further reduce to the source water, NPPWD has implemented a wellhead protection management plan that includes source water protection management strategies and contingency planning. This effort resulted in a reduced risk of SOC and VOC contamination to the community water supply. Hence, the community water supply received a special exception permit from the Illinois EPA which allows a reduction in SOC and VOC monitoring. The outcome of this monitoring reduction has saved the District considerable laboratory costs.
As authorized by the Illinois Environmental Protection Act, NPPWD enacted a "maximum setback zone" ordinance for wells #2, #3, #4, and #5 that allows county and municipal officials the opportunity to provide additional potential source prohibitions up to 1,000 feet from their wells. NPPWD also developed a recharge area management program in order to further protect the community's source water from potential contamination sources for which it is susceptible. The management program covers the recharge areas for NPPWD wells #2, #3, #4, and #5.
To further minimize the risk to NPPWD's groundwater supply, the Illinois EPA recommends that four additional activities be considered. First, the water supply staff should consider petitioning North Park's village board to enact a maximum setback zone ordinance for wells #6 and #6A. Second, the Illinois EPA recommends that NPPWD continue to evaluate additional source water protection management options to address the land use activities within the community wells' recharge areas. Specifically, these management options should include potential effects from non-point sources related to agricultural land uses. If these additional source water protection management options are not addressed, NPPWD may risk revocation of their Safe Drinking Water Act Monitoring Waiver for SOC's and VOC's.
Community Safety Note: During 2006 the NPPWD eliminated the use of chlorine gas as a disinfectant. Liquid sodium hypochlorite is now the disinfectant being utilized at all District wells which eliminates the possibility for accidental release of gaseous chlorine to surrounding neighborhoods.
IMPORTANT NOTICE
If you notice any suspicious activities at or near any of the North Park Public Water facilities, please call the District Office at (815) 633-5461.
IT IS A FEDERAL OFFENSE TO TAMPER WITH ANY NPPWD FACILITY (US CODE TITLE 42, SECTION300i-1)
Nitrates- Nitratein drinking water at levels above 10 ppm is a heath risk for infants of less than six months of age. High nitrate levels in drinking water can cause blue baby syndrome. Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant, you should ask for advice from your health care proivider.
Trihalomethanes - Some people who drink water containing Trihalomethanes in excess of the MCL over many years may expereience problems with their livers, kidneys, or central nervous systme, and may have incresed risk of getting cancer.
2007 Water Quality Data:
Regulated Contaminants Detected in 2007 (collected in 2007 unless noted)
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Lead and Copper Date Sampled June and July 2005
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.
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Lead Lead Action Lead 90th
MCLG Level (AL) Percentile
0 15ppb <5 ppb
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# Sites Over Copper
Lead AL MCLG
1 1.3 ppm
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Copper Action
Level (AL)
1.3 ppm
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Copper 90th Percentile
0.518 ppm
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# Sites Over
Copper AL
2
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Likely Source of Contamination
Corrosion of household plumbing systems; Erosion of natural deposits
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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. MCLs are set as close to the Maximum 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 heath. MCLG's allow for a margin of safety. mg / l or ppm: milligrams per liter or parts per million or one ounce in 7,350 gallons of water. ug / l or ppb: micrograms per liter or parts per billion or one onunce in 7, 350,000 gallons of water. pCi / l: picoCuries per liter (measurement of radioactivity). na: not applicable. ND: Not Detected (i.e. below the detection limit of EPA approved analytical methods). 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 the drinking water. Maximum Residual Disinfectant Level Goal
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Regulated Contaminants
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Collection Date
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Highest Level
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Range of Levels
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MCLG
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MCL
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Units
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Violation?
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Likely Source of Contaminant
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Disinfectants & Disinfection By-Products
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TTHMs (Total Trihalomethanes)
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8/27/2007
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15.1
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N/A
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N/A
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80
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ppb
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No
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By-product of drinking water chlorination
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Total Haloacetic Acids (HAA 5)
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8/27/2007
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3.4
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N/A
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N/A
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60
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ppb
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No
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By-product of drinking water chlorination
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Chlorine
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2007
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0.79
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0.57-0.79
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MRDLG=4
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MRDL=4
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ppm
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No
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Water additive used to control microbes
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Inorganic Contaminants (IOCs)
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Arsenic
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4/24/2006
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1.9
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0.73 - 1.9
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0
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10
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ppb
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No
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Erosion of natural deposits; Runoff from orchards; Runoff from electronics production wastes
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Barium
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4/24/2006
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0.12
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0.072- 0.12
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2
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2
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ppm
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No
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Discharge of drilling wastes; Discharge from metal refineries' Erosion of natural deposits
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Fluoride
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4/24/2006
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1.18
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0.08-1.18
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4
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4
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ppm
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No
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Erosion of natural deposits; Water additive which promotes strong teeth; Fertilizer discharge
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Nitrate-Nitrite
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1/23/2007
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6.09
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0.21-6.09
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10
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10
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ppm
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No
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Runoff From fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits
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Nitrate (as N)
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1/23/2007
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6.09
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0.21-6.09
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10
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10
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ppm
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No
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Runoff From fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits
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Radioactive Contaminants
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Combined Radium
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10/5/2004
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2.5
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0.1-2.5
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0
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5
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pCi/l
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No
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Erosion of natural deposits
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Volatile Organic Contaminants
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Tetrachloroethylene
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3/7/2006
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0
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N/A
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0
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5
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ppb
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No
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Discharge from factories and dry cleaners
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State Regulated Contaminants
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Collection Date
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Highest Level
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Range of Levels
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MCLG
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MCL
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Units
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Violation?
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Likely Source of Contaminant
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Iron
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4/24/2006
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680
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84-680
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N/A
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1000
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ppb
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No
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Erosion from naturally occurring deposits
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This contaminant is not currently regulated by USEPA. However, the state has set an MCL for this contaminant for supplies serving a population of 1,000 or more
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Sodium
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4/24/2006
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26
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11-26
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N/A
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N/A
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ppm
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No
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Erosion of naturally occurring deposits; used in water softener regeneration
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There is not a state or federal MCL for sodium. Monitoring is required to provide information to consumers and health officials who 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.
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Manganese
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4/24/2006
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77
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N/A
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N/A
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150
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ppb
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No
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Erosion from naturally occurring deposits
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This contaminant is not currently regulated by USEPA. However, the state has set an MCL for this contaminant for supplies serving a population of 1,000 or more.
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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.
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.
Our water system was required to monitor for the contaminants required under the Unregulated Contaminant Monitoring Rule (UCMR). Results may be obtained by calling the contact listed on the first page of this report.
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Additional information pertaining to public participation regarding decisions that may affect the quality of water may be obtained by calling the North Park Public Water District at (815) 633-5461 or by attending regularly scheduled board meetings. Meetings are conducted at the District Office, 1350 Turret Drive, Machesney Park, Illinois. You may call the District Office for the time and date of the next meeting.
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