Operations & Maintenance


EST has qualified and experienced Massachusetts Licensed Wastewater Treatment Operators on staff to perform operations and maintenance services at industrial and municipal facilities throughout the region.  From routine monthly maintenance of small pH neutralization systems to the startup and maintenance of complex fuel oil remediation systems, EST has the personnel and resources necessary to keep our clients in compliance with their regulatory requirements.

Our O&M technicians (Grade II-VII) perform routine inspections of groundwater, wastewater, and sewerage treatment systems and schedule services for our clients according to their specific needs.  These services often involve daily, monthly or quarterly visits to clean and calibrate pH probes and flow meters, check acid and caustic levels, inspection of tanks, gauges, acid/caustic levels, testing of alarms/relays, and routine housekeeping.  Services are provided with an emphasis on preventative maintenance and achieving compliance with industrial discharge limitations.

EST also provides qualified contract licensed operators to our clients on an as needed basis (daily, weekly, monthly, etc.) to assist our clients with special projects or to fill employee absences or emergencies.

Contact us today to request a quotation or learn more about EST’s Operations & Maintenance division.


Wastewater Treatment Systems


Groundwater Treatment Systems


Contract/Part-Time Wastewater Operators

New England Office

124 Crescent Road, Needham, MA 02494

Mid-Atlantic Office

127-G Gaither Drive, Mount Laurel, NJ 08054