East Lansing Meridian Water & Sewer Authority

East Lansing Meridian Water Sewer Authority BuildingThe East Lansing - Meridian Water and Sewer Authority (ELMWSA) owns and operates the water production facilities for East Lansing and Meridian Township. Each community has its own water distribution system and provides drinking water and fire protection services for its citizens. ELMWSA pumps and treats the drinking water and provides it to the community water towers and distribution systems.

ELMWSA's Mission: to protect public health and safety and promote the economic well-being of the City of East Lansing and Meridian Township through the provision of a safe, sufficient, reliable, pleasing and economical public water supply.

Notice of Public Comment (2/8/22)

A Notice of Public Comment (PDF) has been issued by the Michigan Department of Environment, Great Lakes & Energy (EGLE), the purpose of which is to seek public input and comment on a preliminary decision by EGLE that an Environmental Impact Statement (EIS) is not required to implement recommendations discussed in the Environmental Assessment (attached to the linked public comment notice above) of a water supply project plan submitted by the East Lansing-Meridian Water & Sewer Authority. 

Public Act 202 Reports

FY2018 OPEB Report (PDF)
FY2018 Pension Report (PDF)
FY2019 OPEB Report (PDF)
FY2019 Pension Report (PDF)
FY2020 OPEB Report (PDF)
FY2020 Pension Report (PDF)
FY2021 OPEB Report (PDF)
FY2021 Pension Report (PDF)

Public Act 530 Reports

ELMWSA participates in the City of East Lansing's retirement system as a division.
East Lansing 2016 OPEB Summary Annual Report (PDF)
East Lansing 2017 Retirement System Summary Annual Report (PDF)

Recent News


As part of a new statewide initiative to test drinking water from all schools, the Michigan Department of Environmental Quality recently tested the East Lansing – Meridian Water system for a group of manmade chemicals called per-and polyfluoroalkyl substances (PFAS). The results show that no detectable levels of PFAS were found in the water. Learn more.

Quick Facts


  • The facility has the capacity to produce 15 million gallons per day (presently producing up to of 11.5 million gallons per day)
  • ELMWSA is staffed 24 hours per day, 7 days per week.
  • All plant operators and supervisors certified as Waterworks System Operators by the State of Michigan.
  • The service area includes East Lansing and Meridian Charter Township.
  • The plant feature state-of-the-art controls and instrumentation (upgraded in 2013).