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Water Quality Report - 2010

Hillsdale Board of Public Utilities

City of Hillsdale 2010 Annual Consumer Report on the Quality of Tap Water

The State allows us to monitor for certain contaminants less than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year. All of the data is representative of the water quality, but some are more than one year old.

Dear Customer:

We are pleased to present a summary of the quality of the water provided to you during the past year.  The Safe Drinking Water Act (SDWA) requires that utilities issue an annual “Consumer Confidence” report to customers in addition to other notices that may be required by law.  This report details where our water comes from, what it contains, and the risks our water testing and treatment are designed to prevent.  Hillsdale Board of Public Utilities is committed to providing you with the safest and most reliable water supply.  Informed consumers are our best allies in maintaining safe drinking water.

El informe contiene informacion importante spbre la calidad del agua en su comunidad.  Traduzcalo o hable con alguien que lo entienda bien.

Hillsdale Board of Public Utilities’ drinking water meets or surpasses all federal and state drinking water standards.

Call us for information about the next opportunity for public participation in decisions about our drinking water.  The Hillsdale Board of Public Utilities meets the second Tuesday of every month at 7:00 PM at 45 Monroe Street. Public comment is welcome.

Water Source

The City of Hillsdale is supplied by groundwater pumped from six wells located in or near Hillsdale.

During 1996, a hydrogeologic study and wellhead protection area delineation was completed and in 2001 a study to determine potential origins of contamination within the delineated area was completed for the Hillsdale Board of Public Utilities.  The source of the water was determined to be a northwest flowing glacial aquifer with the primary sources of the groundwater flow being the Beebe Creek and the Bean Creek drainage basins. These basins are estimated at 42 square miles and six square miles respectively.  Most of the well field production area appears to be rural / agricultural with no current contamination specified.

To better serve our customers, the Hillsdale board of Public Utilities has constructed a new water treatment plant, which began operating on December 14, 2001.  The 2.4 million-dollar state of the art facility oxidizes and filters iron and manganese from the water as well as removes compounds responsible for causing objectionable (although harmless) odors from the drinking water. The addition of all treatment additives are centralized and optimized at the new facility.

Source Water Assessment Report:

Your water comes from six groundwater wells, each over sixty-eight feet deep, drawing from the Beebe and Bean Creek watershed.  The State performed an assessment of our source water in 2003 to determine the susceptibility or the relative potential of contamination.  The susceptibility rating is on a six-tiered scale from “very–low” to “high” based primarily on geologic sensitivity, water chemistry and contaminant sources.  The susceptibility of our source is moderately high.

Sources of potential contamination include standard sources such as septic tanks, sewer lines and storm drains.  There is a known plume of groundwater effluence from a petroleum spill north of the well field, however it is moving away from the wells.

If you would like to learn more about this report please contact Ben Anspaugh at the Hillsdale Board of Public Utilities at (517) 437 6418.

How to Read This Table

The table shows the results of our water-quality analyses.  Every regulated contaminant that we detected in the water, even in the minutest traces, is listed here.  The table contains the name of each substance, the highest level allowed by regulation (MCL), the ideal goals for public health (MCLG), the amount detected, the usual sources of such contamination, footnotes explaining our findings, and a key to units of measurement.  Definitions of MCL and MCLG are important.

Maximum Contaminant Level or MCL: 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 or MCLG: 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.

Action Level (AL): The concentration of a contaminant, which, if exceeded, triggers treatment, or other requirement that a water system must follow.  The data presented in this report is from the most recent resting done in accordance with regulations.

Key to Table:

AL = Action Level MRDL,MRGLG – See footnote 5
MCL= Maximum Contaminant Level ppm = parts per million, or milligrams per liter
MCLG = Maximum Contaminant Level Goal  ppb = parts per billion, or micrograms per liter (ug/l)
NA = Not applicable  


Contaminant Date Tested Units MCL MCLG Range Tested Level Major Sources Violation
Lead 1 9/17/08 ppb AL=15 0 0 of 20 2 Corrosion of household plumbing systems; Erosions of natural deposits NO
Copper 2 9/17/08 ppb AL=1300 AL=1300 2 of 20 770 Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives NO
Fluoride 3 9/15/10 ppm 4 4 NA 0.53 Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories NO
Sodium 9/15/10 ppm N/A N/A NA 20 Erosion of natural deposits NO
Chlorine residual4 2010 ppm MDRL 4 MDRLG 4 .31-.89 0.76 Disinfectant used to control microbes No
TTHM 5 9/14/10 ppb 80 80 15-30 23 By-product of drinking water chlorination NO
HAA5 5 9/14/10 ppb 60 60 1-1 1 By-product of drinking water chlorination NO
Barium 9/29/08 ppm 2 2 NA 0.12 Erosion of natural deposits NO

Water-quality Table Footnotes:

  1. Lead - The 90th percentile of the 20 samples collected is reported.   Of the 20 samples collected, no site was above the action level.

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. Hillsdale BPU is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for up to two minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on methods of testing for lead and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at Http//

  1. Copper - The 90th percentile of the 20 samples collected is reported.   Of the 20 samples collected, two sites were above the action level measuring1630 and 1420 parts per billion
  2. Fluoride - The natural level of fluoride in our water is 0.14 mg/l or parts per million.  Monthly averages of daily fluoride analysis of finished water ranged from 0.88 mg/l to 1.07 mg/l. The average fluoride analysis was 0.93 mg/l.
  3. The MCL for chlorine is equal to the MRDL or Maximum Residual Disinfectant Level - which means the highest level of disinfectant allowed in drinking water. The MCLG for chlorine is equal to the MRDLG or The Maximum Residual Disinfectant Level Goal – which means the level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants. The detected level of chlorine is equal to the highest three month running average total residual n 2010.

    5.    The running annual average is reported for Stage I monitoring (one annually), Range includes IDSE detections.(two quarterly)

Required Additional Health Information:

To ensure that tap water is safe to drink, EPA prescribes limits on the amount of certain contaminants in water provided by public water systems.  FDA regulations establish limits for contaminants in bottled water.

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 environmental Protection Agency’s Safe Drinking Water Hotline (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.  Contaminants that may be present in source water include: 

  1. Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
  2. Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming.
  3. Pesticides and herbicides, which may come from a variety of sources such as agricultural, storm water runoff, and residential uses.
  4. Organic chemical contaminants, including synthetic and volatile organics, which are by-products of industrial processes and petroleum production, and can, also come from gas stations, urban stormwater runoff and septic systems.
  5. 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 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.

Some people may be more vulnerable to contaminants in drinking water than is the general population.  Immuno-comprised 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)

National Primary Drinking Water Regulation Compliance:

For more information, call the Hillsdale Board of Public Utilities (517) 437-3648 or visit our web site at 
El informe contiene informacion importante spbre la calidad del agua en su comunidad.  Traduzcalo o hable con alguien que lo entienda bien.