The city Water Treatment Plant provides drinking water to the communities of the Lake Michigan Shoreline Water and Sewage Treatment Authority, which serves Lincoln Charter Township, Royalton Township, St. Joseph Charter Township, and the villages of Shoreham and Stevensville. Wastewater treatment is provided through the Joint Wastewater Treatment Plant, which is jointly owned by the cities of St. Joseph and Benton Harbor, and which also serves the LMSWSTA communities, Benton Charter Township and portions of Sodus Township.
the cItY water trEaTment plant ProvIdes drINKING WATer To thE CommuNitIEs of thE LakE michigAn sHorelInE WaTeR and sEWaGe tREatmeNT authOrity, which sErvES liNCOln chArTer TOwnship, roYALton tOwnshiP, sT. JosEPh Charter towNshIp, And the villagEs of shorEhaM and stevENSVIlle. wastEwaTer treAtmEnt is provided thRoUgh The Joint WasteWateR treaTMent pLAnt, whIch iS joINtly oWnEd bY the citieS of sT. josEpH anD beNTON harBor, aNd whIch alSO sERves the LmswsTA coMmunIties, beNton CharTER tOwNshIp aNd poRtiOns of soDus tOWNship.