2016 Water Quality Report for Charter Township of Genesee

 

2016 Water Quality Report  for  Charter Township of Genesee


This report provides a snapshot of the drinking water quality for Charter Township of Genesee for the calendar year 2016. The Great Lakes Water Authority (GLWA) are committed to meeting the state and federal water quality standards including the Lead and Copper Rule.  With the Great Lakes as our water source and proven treatment technologies, the GLWA consistently delivers safe drinking water to our community.  Included are details about where our water comes from, what it contains, and how it compares to Environmental Protection Agency (EPA) and state standards.

 

About our system:

Your source water comes from the lower Lake Huron watershed. The watershed includes numerous short, seasonal streams that drain to Lake Huron. The Michigan Department of Environmental Quality in partnership with the Detroit Water and Sewerage Department and several other governmental agencies  performed a source water assessment in 2004 to determine the susceptibility or relative potential of contamination. The susceptibility rating is on a seven-tiered scale ranging from “very low” to “very high” based primarily on geologic sensitivity, water chemistry and contamination sources. The Lake Huron source water intake is categorized as having a moderately low susceptibility to potential contaminant sources. The Lake Huron water treatment plant has historically provided satisfactory treatment of this source water to meet drinking water standards. GLWA voluntarily developed and received approval in 2016 for a source water protection program (SWIPP) for the Lake Huron Water Treatment Plant intake.  The program includes seven elements that include the following: roles and duties of government units and water supply agencies, delineation of a source water protection area, identification of potential of source water protection area, management approaches for protection, contingency plans, siting of new sources and public participation and education.  If you would like to know more information about the Source Water Assessment or SWIPP, please contact the Public Works at (810) 640-2000.

 

Special information available:

 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.  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.

 

Health and safety information:

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 (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 livestock 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 and residential uses.
  • Radioactive contaminants, which are 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 storm water runoff, and septic systems.

 

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. 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 2016 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 – December 31, 2016.  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.

 

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.
  • Maximum Residual Disinfectant Level (MRDL): means the highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
  • Maximum Residual Disinfectant Level Goal (MRDLG): 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.
  • N/A: Not applicable   ND: not detectable at testing limit ppb: parts per billion or micrograms per liter ppm: parts per million or milligrams per liter pCi/l: picocuries per liter (a measure of radioactivity).
  • Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.

Regulated Contaminant

Allowed Level

MCL

Health Goal

MCLG

Highest Level

Detected

Range
Sample Date Violation Yes / No Typical Source of Contaminant
Fluoride (ppm) 4 4 0.50 n/a 5/10/2016 NO Erosion of natural deposits. Discharge from fertilizer and aluminum factories.
Nitrate (ppm) 10 10 0.46 n/a 5/10/2016 NO Water additive used to control microbes
Disinfection By-Products – Stage 2 Quarterly Monitoring in Distribution System
Haloacetic Acid 60 n/a 18 n/a 2016 NO By-product of drinking water disinfection
Trihalomethanes 80 n/a 62 n/a 2016 NO By-product of drinking water chlorination
Disinfectant Residuals Monitoring in Distribution System
Total Chlorine Residual 4 4 .87 .67-.87 Jan-Dec 2016 NO Water additive used to control microbes

Contaminant Subject to AL

Action Level

HealthGoal MCLG

 

90% of Samples < This Level Sample Date Number of Samples Above AL Typical Source of Contaminant
Lead 15 (ppb) 15 0 2.5 ppb 2014 0 Corrosion of household plumbing systems; Erosion of natural deposits
Copper 1.3 (ppm) 1.3 1.3 0.035 ppm 2014 0 Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives

*       EPA considers 50 pCi/l to be the level of concern for beta particles.

**     Unregulated contaminants are those for which EPA has not established drinking water standards. Monitoring helps EPA to determine where certain contaminants occur and whether it needs to regulate those contaminants.

 

     Contaminant          MCLG              MCL   Level Detected Source of Contamination
  Sodium (ppm)          n/a          n/a            4.00 Erosion of natural deposits

Microbial Contaminants

MCL

MCLG

Number

Detected

Violation Yes / No

Typical Source of Contaminant

Total Coliform Bacteria >1 positive monthly sample (>5% of monthly samples positive) 0 NONE NO Naturally present in the environment
Fecal Coliform and E. coli Routine and repeat sample total coliform positive, and one is also fecal or E. coli positive 0 NONE NO Human and animal fecal waste

2016 Turbidity – Monitored every 4 hours at Plant Finished Water

Highest Single Measurement

Cannot exceed 1 NTU

Lowest Monthly % of Samples Meeting

Turbidity Limit of 0.3 NTU (Minimum 95%)

Violation Yes / No

Major Sources In Drinking Water

0.28 NTU

100%

No

Soil Runoff

Turbidity is a measure of the cloudiness of water. We monitor it because it is a good indicator of the effectiveness of our filtration system.

 

Information about lead:

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. The water that GLWA delivers to our community does not contain lead.  Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. The Charter Township of Genesee 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 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 (800-426-47910 or at http://www.epa.gov/safewater/lead.

Symbol                Abbreviation for                                             Definition/Explanation

MCLG                  Maximum Contaminant Level Goal              The level of contaminant in drinking water below which there is no know or expected risk to health.

MCL                     Maximum Contaminant Level                       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.

MRDLG               Maximum Residual Disinfectant level goal  The level of a drinking water disinfectant below which there is no know or expected risk to health.  MRLDG’s do not reflect the benefits of the use of disinfectants to control microbial contaminants.

MRDL                  Maximum Residual Disinfectant Level          The highest level of disinfectant allowed in drinking water.  There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.

ppb                      Parts per billion (one in one billion)               The ppb is equivalent to micrograms per liter.  A microgram – 1/1000 milligram.

ppm                     Parts per million (one in one million)             The ppm is equivalent to milligrams per liter.  A milligram – 1/1000 gram.

NTU                     Nephelometric Turbitidity Units                       Measures the cloudiness of water

ND                       Not detected

TT                        Treatment Technique                                        A required process intended to reduce the level of a contaminant in drinking water.

AL                        Action Level                                                      The concentration of a contaminant, which, if exceeded, triggers treatment or other requirements which a water system must follow.

HAA5                  Haloacetic acids                                                 HAA5 is the total of bromoacetic, chloroacetic, dibromoacetic, dichoroacetic, and trichloroacetic acids.  Compliance is based on the total.

TTHM                  Total Trihalomethances                                    Total Trihalomethances is the sum of chloroform, bromodichloromethane, dibromoochloromethane and bromoform.  Compliance is based on total.

pCi/l                    picocuries per liter                                             a measure of radioactivity

n/a                      not applicable

>                         Greater than

Genesee Township and the Great Lakes Water Authority are committed to safeguarding our water supply and delivering the highest quality drinking water to protect public health. 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 Township Hall, G-7244 N. Genesee Rd.  We invite public participation in decisions that affect drinking water quality.  For more information about your water, or the contents of this report, contact Public Works at (810) 640-2000 ext. #5.  For more information about safe drinking water visit the U.S. Environmental Protection Agency at www.epa.goc/safewater/.