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Glen Oaks

2022 Water Quality Report for Glen Oaks Community College Dorms

Water Supply Serial Number: 2657

This report covers the drinking water quality for Glen Oaks Community College Dorms for the 2022 calendar year. This information is a snapshot of the quality of the water that we provided to you in 2022. Included are details about where your water comes from, what it contains, and how it compares to United States Environmental Protection Agency (U.S. EPA) and state standards.

Your water comes from 2 groundwater wells, each over 138 ft deep.

There is no significant source of contamination in our water supply. We are making efforts to protect our sources by 1) Glen Oaks groundwater wells have no maximum contaminate level violation, 2) the well construction meets standards, 3) there are no potential contamination sources within the standard isolation area.

If you would like to know more about this report, please contact: Larry Diekman (269) 294-4312

Contaminants and their presence in 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 U.S. EPA’s Safe Drinking Water Hotline (800-426-4791).

Vulnerability of sub-populations: Some people may be more vulnerable to contaminants in drinking water than the general population. lmmuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune systems 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. U.S. EPA/Center for Disease Control 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).

Sources of drinking water: The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. Our water comes from 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.

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 stormwater 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 and residential uses.
  • Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities.
  • 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 stormwater runoff, and septic systems.

In order to ensure that tap water is safe to drink, the U.S. EPA prescribes regulations that limit the levels of certain contaminants in water provided by public water systems. Federal Food and Drug Administration regulations establish limits for contaminants in bottled water which provide the same protection for public health.

Water Quality Data

The table below lists all the drinking water contaminants that we detected during the 2022 calendar year. The presence of these contaminants in the water does not necessarily indicate that the water poses a health risk. Unless otherwise noted, the data presented in this table is from testing done January 1 through December 31, 2022. 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 the data is representative of the water quality, but some are more than one year old.

Terms and abbreviations used below:

  • Maximum Contaminant Level Goal (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.
  • Maximum Contaminant Level (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.
  • N/A: Not applicable
  • ND: not detectable at testing limit
  • ppm: parts per million or milligrams per liter
  • ppb: parts per billion or micrograms per liter
  • ppt: parts per trillion or nanograms per liter
  • pCi/I: picocuries per liter (a measure of radioactivity)
  • Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.
  • Level 1 Assessment: A study of the water supply to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.
  • Level 2 Assessment: A very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.

Regulated ContaminantMCL, TT, or MRDLMCLG or MRDLGLevel DetectedRangeYear SampledViolation Yes/NoTypical Source of Contaminant
Nitrate (ppm)10107.71.4-142022NORunoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits
Fluoride (ppm)44.15ND-.152022NOErosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories
Sodium1 (ppm)N/AN/A1608-1602022NOErosion of natural deposits
Alpha emitters (pCi/L)1502.2+1.9N/A2017NOErosion of natural deposits
Combined radium (pCi/L)50.80+.54N/A2017NOErosion of natural deposits
Total ColiformTTN/AN/AN/A2022YESNaturally present in the environment
1 Nitrate in drinking water at levels above 10 ppm is a health 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 provider.

Sodium is not a regulated contaminant.

Per-and polyfluoroalkyl substances (PFAS)

Regulated ContaminantMCL, TT, or MRDLMCLG or MRDLGLevel DetectedRangeYear SampledViolation Yes/NoTypical Source of Contaminant
Hexafluoropropylene oxide dimer acid (HFPO-DA) (ppt)370N/A<2.0N/A2022NODischarge and waste from industrial facilities utilizing the Gen X chemical process
Perfluorobutane sulfonic acid (PFBS) (ppt)420N/A<2.0N/A2022NODischarge and waste from industrial facilities; stain-resistant treatments
Perfluorohexane sulfonic acid (PFHxS) (ppt)51N/A<2.0N/A2022NOFirefighting foam; discharge and waste from industrial facilities
Perfluorohexanoic acid (PFHxA) (ppt)4000,000N/A<2.0N/A2022NOFirefighting foam; discharge and waste from industrial facilities
Perfluorononanoic acid (PFNA) (ppt)6N/A<2.0N/A2022NODischarge and waste from industrial facilities; breakdown of precursor compounds
Perfluorooctane sulfonic acid (PFOS) (ppt)16N/A<2.0N/A2022NOFirefighting foam; discharge from electroplating facilities; discharge and waste from industrial facilities
Perfluorooctanoic acid (PFOA) (ppt)8N/A<2.0N/A2022NODischarge and waste from industrial facilities; stain-resistant treatments
Inorganic Contaminant Subject to Action Levels (AL)Action LevelMCLGYour Water2Range of ResultsYear SampledNumber of Samples Above ALTypical Source of Contaminant
Lead (ppb)15000-020220Lead service lines, corrosion of household plumbing including fittings and fixtures; Erosion of natural deposits
Copper (ppm) of household plumbing systems; Erosion of natural deposits
2 Ninety (90) percent of the samples collected were at or below the level reported for our water.

Information about lead: 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. Glen Oaks Community College Dorm 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 30 seconds to 2 minutes before using water for drinking or cooking. If you have a lead service line it is recommended that you run your water for at least 5 minutes to flush water from both your home plumbing and the lead service line. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at

Copper is an essential nutrient, but some people who drink water containing copper in excess of the action level over a relatively short amount of time could experience gastrointestinal distress. Some people who drink water containing copper in excess of the action level over many years could suffer liver or kidney damage. People with Wilson’s Disease should consult their personal doctor.

During the past year we were required to conduct 1 Level 1 Assessment(s). 1 Level 1 Assessment(s) were completed. In addition, we were required to take 1 corrective action and we completed 1 of these actions.

During the past year 1 Level 2 Assessments were required to be completed for our water supply. 1 Level 2 Assessments were completed. In addition, we were required to take 2 corrective actions and we completed of these actions.

Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other, potentially harmful, waterborne pathogens may be present or that a potential pathway exists through which contamination may enter the drinking water distribution system. We found coliforms, indicating the need to look for potential problems in water treatment or distribution. When this occurs, we are required to conduct assessment(s) to identify problems and to correct the problems that were found during these assessments.

On the 2021 Consumer Confident Report there was missing verbiage regarding nitrate level above 5 ppm but below 10 ppm. A revised version was submitted.

Monitoring and Reporting to the Department of Environment, Great Lakes, and Energy (EGLE) Requirements: The State of Michigan and the U.S. EPA require us to test our water on a regular basis to ensure its safety. We met all the monitoring and reporting requirements for 2022.

We will update this report annually and will keep you informed of any problems that may occur throughout the year, as they happen. Copies are available at the building and grounds office located at 62237 Shimmel Rd. Centreville Ml. This report will not be sent to you.

We invite public participation in decisions that affect drinking water quality. For more information about your water, or the contents of this report, contact Larry Diekman, Director of Buildings and Grounds (269) 294-4312. For more information about safe drinking water, visit the U.S. EPA at