Water Quality Report
Safe, Clean Drinking Water for Our Campus Community
This report covers drinking water quality for the 2025 calendar year at Glen Oaks Community College.
This report is published in compliance with the Safe Drinking Water Act and State of Michigan Department of Environment, Great Lakes, and Energy (EGLE) regulations. Water Supply Serial Number: 2657
Where Our Water Comes From
Our water comes from three (3) groundwater wells, each more than 208 feet deep.
- No maximum contaminant level violations for groundwater wells
- Well construction meets regulatory standards
- No known contamination sources within the required isolation area
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鈥檚 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. Immuno-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.
Water Quality Data
The table below lists all the drinking water contaminants that we detected during the 2025 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, 2025. 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
- ppb: parts per billion or micrograms per liter
- ppt: parts per trillion or nanograms per liter
- pCi/l: 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
2025 Water Quality Data Summary
| Contaminant | MCL, TT, or MRDL | MCLG or MRDLG | Level Detected | Range | Year Sampled | Violation | Typical Source |
|---|---|---|---|---|---|---|---|
| Arsenic (ppb) | 10 | 0 | 4 | 5-3.3 | 2025 | No | Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes |
| Fluoride (ppm) | 4 | 4 | ND | N/A | 2025 | No | Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories |
| Nitrate (ppm) | 10 | 10 | ND | N/A | 2025 | No | Run off from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. |
| Sodium (ppm)* | Not regulated | N/A | 150 | N/A | 2025 | No | Erosion of natural deposits |
| Total Coliform | TT | N/A | N/A | N/A | 2025 | Yes | Naturally present in the environment |
* Sodium is not a regulated contaminant under federal drinking water standards.
Arsenic Health Effects Statement
While your drinking water meets the U.S. EPA standard for arsenic, it does contain low levels of arsenic. The U.S EPA standard balances the current understanding of arsenic's possible health effects against the costs of removing arsenic from drinking water. The U.S. 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.
PFAS Monitoring Results (2025)
Regulated PFAS Contaminants
| Regulated Contaminant | MCL, TT, or MRDL | MCLG or MRDLG | Level Detected | Range | Year Sampled | Violation | Typical Source |
|---|---|---|---|---|---|---|---|
| Hexafluoropropylene oxide dimer acid (HFPO-DA) ppt | 370 | N/A | <2.0 | N/A | 2025 | No | Industrial discharge utilizing GenX process |
| Perfluorobutane sulfonic acid (PFBS) ppt | 420 | N/A | <2.0 | N/A | 2025 | No | Industrial discharge; stain-resistant treatments |
| Perfluorohexane sulfonic acid (PFHxS) ppt | 51 | N/A | <2.0 | N/A | 2025 | No | Firefighting foam; industrial discharge |
| Perfluorohexanoic acid (PFHxA) ppt | 400,000 | N/A | <2.0 | N/A | 2025 | No | Firefighting foam; industrial discharge |
| Perfluorononanoic acid (PFNA)ppt | 6 | N/A | <2.0 | N/A | 2025 | No | Industrial discharge; breakdown of precursor compounds |
| Perfluorooctane sulfonic acid (PFOS) ppt | 16 | N/A | <2.0 | N/A | 2025 | No | Firefighting foam; electroplating discharge |
| Perfluorooctanoic acid (PFOA) ppt | 8 | N/A | <2.0 | N/A | 2025 | No | Industrial discharge; stain-resistant treatments |
Notes: 鈥淣/A鈥� means not applicable. 鈥�<2.0鈥� indicates results were below the laboratory reporting limit.
Inorganic Contaminants Subject to Action Levels (AL)
| Contaminant | Action Level | MCLG | Your Water* | Range of Results | Year Sampled | Number of Samples Above AL | Typical Source |
|---|---|---|---|---|---|---|---|
| Lead (ppb) | 12 | 0 | 1 ppb | 0鈥�2 ppb | 2024 | 0 | Lead service lines, corrosion of household plumbing including fittings and fixtures; Erosion of natural deposits |
| Copper (ppm) | 1.3 | 1.3 | 0.0 ppm | 0鈥�0.1 ppm | 2024 | 0 | Corrosion of household plumbing systems; Erosion of natural deposits |
*Ninety (90) percent of samples collected were at or below the levels reported above.
Information about lead: Information about lead: Lead can cause serious health effects in people of all ages, especially pregnant people, infants (both formula-fed and breastfed), and young children. Lead in drinking water is primarily from materials and parts used in service lines and in home plumbing. 糖心Vlog is responsible for providing high quality drinking water and removing lead pipes but cannot control the variety of materials used in the plumbing in your home. Because lead levels may vary over time, lead exposure is possible even when your tap sampling results do not detect lead at one point in time. You can help protect yourself and your family by identifying and removing lead materials within your home plumbing and taking steps to reduce your family's risk. Using a filter, certified by an American National Standards Institute accredited certifier to reduce lead, is effective in reducing lead exposures. Follow the instructions provided with the filter to ensure the filter is used properly. Use only cold water for drinking, cooking, and making baby formula. Boiling water does not remove lead from water. Before using tap water for drinking, cooking, or making baby formula, flush your pipes for several minutes. You can do this by running your tap, taking a shower, doing laundry or a load of dishes. If you have a lead service line or galvanized requiring replacement service line, you may need to flush your pipes 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 and wish to have your water tested, contact Glen Oaks Community College, Larry Diekman (269)294-4312 for available resources. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available at .
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 2025.
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 MI. 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 .