skip to main content
Derry Township Logo
H. A. Stewart Reservoir

  • LMA Office
  • New LMA Service Truck
  • Filtration Building
  • Inside The Filtration Building
  • H. A. Stewart (Latrobe) Reservoir
  • H. A. Stewart Reservoir Built 1919 Expanded 1959
  • Wastewater Treatment Plant
1 2 3 4 5 6 7

Latrobe Municipal Authority

Welcome to the official web site for the Latrobe Municipal Authority in Latrobe, Pennsylvania. Since its inception in 1942, the Authority currently provides water and wastewater services to the Greater Latrobe area in Westmoreland County.


The water treatment system has a filtration capacity of 6.0 million gallons per day and the wastewater plant is rated to treat 6.2 million gallons per day.


The water comes from the H. A. Stewart Reservoir near Ligonier. The reservoir was constructed in 1919 and expanded in 1959.


NEW! Pay Online and View Account Information

System Alerts
St. Mary's Tank Painting Project Please be advised that Latrobe Municipal Authority contractors have initiated work related to the St. Mary's Tank painting project. As a result of the project, the tank must be drained and will remain out-of-service for the next several months. Water customers are likely to experience service disruptions throughout the duration of the project including water pressure changes and dirty water due to directional changes in water flow to the area. We apologize for the inconvenience and appreciate your patience as we continue to proceed with this necessary maintenance project.
Updated Tuesday, July 16, 2019


Next Meeting
Tuesday, August 20, 2019 at 5:30 pm at the LMA building, 104 Guerrier Rd., Latrobe, PA 15650
See all meetings

Office Hours
The LMA office hours are Monday thru Friday from 8:00 am to 4:30 pm.

Water Quality Report
Consumer Confidence Report PDF 2018 and 2017
(Get Free Adobe PDF Reader Here)

Sewer Projects
 Water Projects


News and Alerts

St. Mary's Tank Painting Project - Donohoe Road

Sewage Rate Increase Set to Take Effect

Water Conservation Tips

Westmoreland County Integrated Water Resources Plan

Latrobe Municipal Authority Notification System


See all Alerts and News