Springwells Water Treatment Plant KEY TOKey THE to the DETECTED Detected CONTAMINANTS Contaminants Table TABLE 2017 Regulated Detected Contaminants Tables Symbol Abbreviation Definition/Explanation > Greater than A scale of temperature in which water freezes at 0° and boils at °C Celsius 100° under standard conditions. The concentration of a contaminant, which, if exceeded, triggers AL Action Level treatment or other requirements which a water system must follow. HAA5 is the total of bromoacetic, chloroacetic, dibromoacetic, HAA5 Haloacetic Acids dichloroacetic, and trichloroacetic acids. Compliance is based on the total. The average of analytical results for samples at a particular LRAA Locational Running Annual Average monitoring location during the previous four quarters. The highest level of a contaminant that is allowed in drinking MCL Maximum Contaminant Level water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology. The level of contaminant in drinking water below which there is no MCLG Maximum Contaminant Level Goal known or expected risk to health. The highest level of disinfectant allowed in drinking water. There MRDL Maximum Residual Disinfectant Level is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. The level of a drinking water disinfectant below which there is no Maximum Residual Disinfectant Level known or expected risk to health. MRLDG’s do not reflect the MRDLG Goal benefits of the use of disinfectants to control microbial contaminants. n/a not applicable ND Not Detected NTU Nephelometric Turbidity Units Measures the cloudiness of water. pCi/L Picocuries Per Liter A measure of radioactivity The ppb is equivalent to micrograms per liter. ppb Parts Per Billion (one in one billion) A microgram = 1/1000 milligram. The ppm is equivalent to milligrams per liter. ppm Parts Per Million (one in one million) A milligram = 1/1000 gram. The average of analytical results for all samples during the RAA Running Annual Average previous four quarters. A required process intended to reduce the level of a contaminant TT Treatment Technique in drinking water. Total Trihalomethanes is the sum of chloroform, TTHM Total Trihalomethanes bromodichloromethane, dibromoochloromethane and bromoform. Compliance is based on the total. μmhos Micromhos Measure of electrical conductance of water

For questions regarding your water supply, please contact the Department of Public Services at 248-662-0495.

About Contamination Testing The table on page 2 outlines the drinking water contaminants that were detected during the 2017 calendar year. Results from the treatment plants that supply Northville Township are included. Please use the definitions above to help you read these tables.

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and it may be spread through means other than drinking water. drinking than other means through spread be may it and List 1 and List 2 in 2010 were undetected. were 2010 in 2 List and 1 List

Rule 2 (UCMR2.) All the UCMR2 contaminants monitored on on monitored contaminants UCMR2 the All (UCMR2.) 2 Rule infection. Cryptosporidium must be ingested to cause disease, disease, cause to ingested be must Cryptosporidium infection.

contaminants under the Unregulated Contaminant Monitoring Monitoring Contaminant Unregulated the under contaminants their doctor regarding appropriate precautions to take to avoid avoid to take to precautions appropriate regarding doctor their

(DWSD) began monitoring quarterly for unregulated unregulated for quarterly monitoring began (DWSD) Charter Township of Northville Department consult to individuals immuno-compromised encourage We

in July of 2008, the Detroit Water and Sewerage Department Department Sewerage and Water Detroit the 2008, of July in of Public Services 44405 Six Mile Road illness. life-threatening developing of risk greater at are elderly

Northville, MI 48168 Beginning contaminants. those regulate to needs it whether compromised people, infants and small children, and the the and children, small and infants people, compromised

the EPA to determine where certain contaminants occur and and occur contaminants certain where determine to EPA the overcome the disease within a few weeks. However, immuno- However, weeks. few a within disease the overcome

not established drinking water standards. Monitoring helps helps Monitoring standards. water drinking established not diarrhea, and abdominal cramps. Most healthy individuals can can individuals healthy Most cramps. abdominal and diarrhea,

Unregulated contaminants are those for which the EPA has has EPA the which for those are contaminants Unregulated abdominal infection. Symptoms of infection include nausea, nausea, include infection of Symptoms infection. abdominal

Ingestion of Cryptosporidium may cause cryptosporidiosis, an an cryptosporidiosis, cause may Cryptosporidium of Ingestion

Unregulated Contaminant Monitoring Contaminant Unregulated

organisms are dead or if they are capable of causing disease. disease. causing of capable are they if or dead are organisms

water. Current test methods do not allow us to determine if the the if determine to us allow not do methods test Current water.

indicates the presence of these organisms in our source source our in organisms these of presence the indicates

the same protection for public health. public for protection same the

cannot guarantee 100 percent removal. Our monitoring monitoring Our removal. percent 100 guarantee cannot

limits for contaminants in bottled water, which must provide provide must which water, bottled in contaminants for limits

Cryptosporidium, the most commonly used filtration methods methods filtration used commonly most the Cryptosporidium,

The Food and Drug Administration (FDA) regulations establish establish regulations (FDA) Administration Drug and Food The

water throughout the U.S. Although filtration removes removes filtration Although U.S. the throughout water

systems. water public by provided water in contaminants

Cryptosporidium is a microbial pathogen found in surface surface in found pathogen microbial a is Cryptosporidium

prescribes regulations which limit the amount of certain certain of amount the limit which regulations prescribes

In order to ensure that tap water is safe to drink, EPA EPA drink, to safe is water tap that ensure to order In

of Giardia lamblia is removed or inactivated. inactivated. or removed is lamblia Giardia of

water Like GLWA must provide treatment so that 99.9 percent percent 99.9 that so treatment provide must GLWA Like water

and Giardia in the untreated water. Systems using surface surface using Systems water. untreated the in Giardia and systems. year 2017 were absent for the presence of Cryptosporidium Cryptosporidium of presence the for absent were 2017 year

Household Hazardous Waste Days for Northville Township residents septic and runoff water storm urban stations, gas from

contained 1 Giardia cyst. All other samples collected in the the in collected samples other All cyst. Giardia 1 contained

2018 Fall Event at City of Northville DPW (650 Doheny Drive) tentatively Saturday, September 22, 2018, 8 a.m.-2 p.m. come also can and production, petroleum and processes

2017 untreated water sample collected at the Belle Isle intake intake Isle Belle the at collected sample water untreated 2017

2019 Spring Event in the City of Livonia, the date and time TBD, please check the website for details. industrial of by-products are which organics, volatile

protozoans Cryptosporidium and Giardia. The December December The Giardia. and Cryptosporidium protozoans Organic chemical contaminants, including synthetic and synthetic including contaminants, chemical Organic •

2019 Shred It Event the for monitors voluntarily Authority Water Lakes Great

In celebration of Earth Day, this event will be Saturday, May 18, 2019, 9:00 a.m.-11:00 a.m. activities. mining

Visit our website at www.twp.northville.mi.us for more information on these and other events. and production gas and oil of result the be or occurring Cryptosporidium

Radioactive contaminants, which can be naturally be can which contaminants, Radioactive •

water runoff, and residential uses. residential and runoff, water

248-662-0495. Ecorse River, in the U.S. and parts of the Thames River, Little Little River, Thames the of parts and U.S. the in River, Ecorse

variety of sources such as agriculture, urban storm urban agriculture, as such sources of variety

at Services Public of Department the the Lake St. Clair, Clinton River, Detroit River, Rouge River, River, Rouge River, Detroit River, Clinton Clair, St. Lake the

Hotline or at http://www.epa.gov/safewater/lead. at or Hotline

Pesticides and herbicides, which may come from a from come may which herbicides, and Pesticides •

Water Assessment or SWIPP, contact contact SWIPP, or Assessment Water Your source water comes from the Detroit River, situated within within situated River, Detroit the from comes water source Your

minimize exposure is available from the Safe Drinking Water Water Drinking Safe the from available is exposure minimize

to know more information about the Source Source the about information more know to discharges, oil and gas production, mining or farming. or mining production, gas and oil discharges,

in drinking water, testing methods, and steps you can take to to take can you steps and methods, testing water, drinking in

Where does our Water Come From? Come Water our does Where participation and education. If you would like like would you If education. and participation

storm water runoff, industrial or domestic wastewater domestic or industrial runoff, water storm

you may wish to have your water tested. Information on lead lead on Information tested. water your have to wish may you

public and sources new of siting plans,

which can be naturally occurring or result from urban from result or occurring naturally be can which

or cooking. If you are concerned about lead in your water, water, your in lead about concerned are you If cooking. or

ment approaches for protection, contingency contingency protection, for approaches ment water.

Inorganic contaminants, such as salts and metals, and salts as such contaminants, Inorganic •

for 30 seconds to 2 minutes before using water for drinking drinking for water using before minutes 2 to seconds 30 for of potential source water protection area, manage- area, protection water source potential of Please contact us with any questions or concerns about your your about concerns or questions any with us contact Please

identification area, protection water source a of systems, agricultural livestock operations, and wildlife. and operations, livestock agricultural systems, minimize the potential for lead exposure by flushing your tap tap your flushing by exposure lead for potential the minimize the highest quality drinking water to protect public health. health. public protect to water drinking quality highest the

of government units and water supply agencies, delineation delineation agencies, supply water and units government of

committed to safeguarding our water supply and delivering delivering and supply water our safeguarding to committed which may come from sewage treatment plants, septic plants, treatment sewage from come may which When your water has been sitting for several hours, you can can you hours, several for sitting been has water your When

seven elements that include the following: roles and duties duties and roles following: the include that elements seven Northville Township and the Great Lakes Water Authority are are Authority Water Lakes Great the and Township Northville Microbial contaminants, such as viruses and bacteria, and viruses as such contaminants, Microbial • the variety of materials used in plumbing components. components. plumbing in used materials of variety the

program for the Detroit River intakes. The programs include include programs The intakes. River Detroit the for program

providing high quality drinking water, but cannot control control cannot but water, drinking quality high providing

Environmental Quality to develop a source water protection protection water source a develop to Quality Environmental public about our drinking water. drinking our about public

Contaminants that may be present in source water include: water source in present be may that Contaminants and home plumbing. Northville Township is responsible for for responsible is Township Northville plumbing. home and

GLWA received a grant from the Michigan Department of of Department Michigan the from grant a received GLWA

public health and maintaining open communication with the the with communication open maintaining and health public

from materials and components associated with service lines lines service with associated components and materials from

and has an emergency response management plan. In 2015, 2015, In plan. management response emergency an has and drinking water. Together, we remain committed to protecting protecting to committed remain we Together, water. drinking

women and young children. Lead in drinking water is primarily primarily is water drinking in Lead children. young and women activity. human from or animals of presence the from resulting

Discharge Elimination System permit discharge program program discharge permit System Elimination Discharge water professionals in delivering some of the nation’s best best nation’s the of some delivering in professionals water

can cause serious health problems, especially for pregnant pregnant for especially problems, health serious cause can substances up pick can and material radioactive cases, some reduction program. GLWA participates in a National Pollutant Pollutant National a in participates GLWA program. reduction highlights the performance of GLWA and Northville Townships Townships Northville and GLWA of performance the highlights

Hotline (800) 426-4791. If present, elevated levels of lead lead of levels elevated present, If 426-4791. (800) Hotline in and, minerals naturally-occurring dissolves it ground, the chemical containment, spill response, and a mercury mercury a and response, spill containment, chemical your home’s service line. This year’s Water Quality Report Report Quality Water year’s This line. service home’s your

initiated source-water protection activities that include include that activities protection source-water initiated operates the system of water mains that carry this water to to water this carry that mains water of system the operates contaminants are available from the Safe Drinking Water Water Drinking Safe the from available are contaminants through or land the of surface the over travels water As wells.

of this source water to meet drinking water standards. GLWA GLWA standards. water drinking meet to water source this of safe drinking water to our community. Northville Township Township Northville community. our to water drinking safe risk of infection by Cryptosporidium and other microbial microbial other and Cryptosporidium by infection of risk and springs reservoirs, ponds, streams, lakes, rivers, include

Detroit River have historically provided satisfactory treatment treatment satisfactory provided historically have River Detroit

treatment technologies, the GLWA consistently delivers delivers consistently GLWA the technologies, treatment EPA/CDC guidelines on appropriate means to lessen the the lessen to means appropriate on guidelines EPA/CDC water) bottled and tap (both water drinking of sources The

four Detroit water treatment plants that use source water from from water source use that plants treatment water Detroit four Rule. With the Great Lakes as our water source and proven proven and source water our as Lakes Great the With Rule.

advice about drinking water from their health care providers. providers. care health their from water drinking about advice

be highly susceptible to potential contamination. However, all all However, contamination. potential to susceptible highly be water quality standards including the Lead and Copper Copper and Lead the including standards quality water

particularly at risk from infections. These people should seek seek should people These infections. from risk at particularly 426-4791. (800) at Hotline Water Drinking Safe Agency’s

of our Detroit River source water intakes were determined to to determined were intakes water source River Detroit our of

Authority (GLWA) are committed to meeting state and federal federal and state meeting to committed are (GLWA) Authority

system disorders, some elderly, and infants can be be can infants and elderly, some disorders, system Protection Environmental the calling by obtained be can

water chemistry, and contaminant sources. The susceptibility susceptibility The sources. contaminant and chemistry, water the region, Northville Township and the Great Lakes Water Water Lakes Great the and Township Northville region, the

organ transplants, people with HIV/AIDS or other immune immune other or HIV/AIDS with people transplants, organ effects health potential and contaminants about information

low” to “very high” based primarily on geologic sensitivity, sensitivity, geologic on primarily based high” “very to low” Drinking water quality is important to our community and and community our to important is quality water Drinking

undergoing chemotherapy, persons who have undergone undergone have who persons chemotherapy, undergoing More risk. health a poses water that indicate necessarily The susceptibility rating is on a seven-tiered scale from “very “very from scale seven-tiered a on is rating susceptibility The year to over 12,300 households with 160 miles of water main. main. water of miles 160 with households 12,300 over to year

compromised persons such as persons with cancer cancer with persons as such persons compromised not does contaminants of presence The contaminants. to determine the susceptibility of potential contamination. contamination. potential of susceptibility the determine to distributes approximately 1.0 billion gallons of water every every water of gallons billion 1.0 approximately distributes

Health Institute performed a source water assessment in 2004 2004 in assessment water source a performed Institute Health The Northville Township Water and Sewer Department Department Sewer and Water Township Northville The in drinking water than the general population. Immuno- population. general the than water drinking in some of amounts small least at contain to expected be

and Sewerage Department (DWSD), and the Michigan Public Public Michigan the and (DWSD), Department Sewerage and Some people may be more vulnerable to contaminants contaminants to vulnerable more be may people Some reasonably may water, bottled including water, Drinking

partnership with the U.S. Geological Survey, the Detroit Water Water Detroit the Survey, Geological U.S. the with partnership Ann lity Q ater W n O port e R ual ua

The Michigan Department of Environmental Quality in in Quality Environmental of Department Michigan The

2017 Charter Township of Northville Northville of Township Charter For Those with Special Health Concerns Health Special with Those For Water? In Found Be Can What Consumer Consumer River, Turkey Creek and Sydenham watersheds in Canada. Canada. in watersheds Sydenham and Creek Turkey River,