This Consumer Confidence Report outlines water testing results annually. We are pleased to report that the tap water of Northville Township meets or surpasses all federal and state standards for quality and safety. In fact, the Great Lakes Water Authority (GLWA) water system, from which Northville Township gets its water, is ranked among the top 10 water systems in the country for quality and volume. We will update this report annually in July and keep you informed of our water quality.

For more information about your water or the contents of this report, contact Northville Public Works at (248) 348-5819. For more information about safe drinking water, visit the U.S. Environmental Protection Agency website.

• 2023 Consumer Confidence Report - Updated 6/13/24
• 2022 Consumer Confidence Report
• 2021 Consumer Confidence Report
• 2020 Consumer Confidence Report

 FAQs About Lead in Water

Lead is rarely found naturally in water and is NOT found in GLWA's source water or treated water leaving GLWA's five water treatment plants. Lead gets into drinking water primary from corrosion of materials and components associated with lead service lines and/or the plumbing inside homes, schools, churches and businesses. 

There are four primary sources of lead that drinking water comes in contact with:

1. Brass faucets and plumbing fixtures - from 1986 to 2014, brass faucets and fittings sold in the US that were labeled as "lead free" could contain up to 8% lead.
2. Lead goosenecks or pigtails are small connector pipes that were used to connect a galvanized steel service line to the water main.
3. Lead solder was used on copper pipes until 1986.
4. Lead service lines are found in many older communities.

Northville Township does NOT have lead water service lines. 

Steps to take to reduce lead in water: Reducing Potential Lead Exposure from Drinking Water (michigan.gov)

The Water Quality Work Group is now offering Arabic and Spanish translations of frequently asked questions (FAQs) about lead and copper in drinking water. The FAQs answer questions regarding the lead and copper requirements in Michigan:  GLWA FAQs

The Michigan Safe Drinking Act in 2018 was expanded in order to better protect and prioritize the public health of Michiganders.  Our state now has the strongest protections in the United States against lead in drinking water. 

The 2018 lead and copper revision to the Michigan Safe Drinking Water Act, 1976 PA 399, as amended, require the action level for lead in drinking water to be lowered from 15 ppb (parts per billion) to 12 ppb on Jan. 1, 2025. Another requirement of the amended Safe Drinking Water Act, is that the water suppliers develop and maintain a Complete Distribution System Martial Inventory (CDSMI). The purpose of the CDSMI is for water suppliers to inventory the materials within the distribution system, including service line materials. A service line includes any section of pipe from the water main to the building plumbing at the first shut-off valve inside the building, or 18 inches inside the building, whichever is shorter. 

As part of the inventory, Northville Township is required to track and record information found during the physical verification of the sites. Physical verification is performed by curb box service repairs and meter replacements. The purpose of the inventory is to prioritize lead pipes for removal.

As a result of the inventory, Northville Township DPW can report that all of the 8,987 inventoried locations do NOT contain any lead service lines. Click here to view the CDSMI spreadsheet of inventoried properties.  Please note, inventory of the water system is done every year and the spreadsheet will be updated accordingly.

For more information on the Michigan Safe Drinking Act and Lead information, please visit the Michigan Lead Safe website (www.michigan.gov/mileadsafe)

If you have questions about public drinking water quality, please contact the Department of Public Works at (248) 348-5819 or dpw@twp.northville.mi.us.