Town of Stratford, CT
Flow Monitoring Services
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Retail Petroleum Sites – Water Quality Sampling, Multiple Sites in New Jersey, Massachusetts, and New Hampshire
EST has been contracted to collect groundwater samples from multiple Exxon/Mobile, and Shell Oil retail petroleum sites located in New Jersey, Massachusetts, and New Hampshire. During the course of these contracts, EST collected hundreds of samples from groundwater wells located on seventy-eight (78) sites.
Waste Management, Inc. – Environmental Monitoring, Wheelabrator Shrewsbury Ash Landfill, Shrewsbury, MA
The Wheelabrator Shrewsbury ash monofill is a commercial facility that provides ash disposal to the Wheelabrator Millbury facility and several other waste-to-energy plants in the region. EST provided water quality monitoring and related field services including groundwater sampling, surface water sampling, and leachate monitoring. EST measured static water level, pH, temperature, conductivity, oxidation reduction potential (ORP) and dissolved oxygen prior to sample collection.
Town of Braintree, MA – Continuous Flow Monitoring
EST performed flow monitoring at eleven (11) locations throughout the town of Braintree, MA. These systems were equipped with wireless telemetry to facilitate real time data acquisition by means of a password protected website.
New Hampshire Department of Environmental Services (NHDES), Winnipesaukee River Basin Flow Monitoring Program (WRBP)
The Winnipesaukee River Basin Program (WRBP) is a state-owned system in the Lakes Region of the state that includes fourteen (14) wastewater pumping stations, approximately fifty-five (55) miles of large diameter interceptor sewers and a wastewater treatment facility (WWTF) in Franklin, NH treating an average of five (5) million gallons of wastewater per day. EST was contracted to perform flow monitoring at locations though the collection system.
Town of Needham, MA – Flow Monitoring and I/I Related Inspection Services
EST was contracted by the Town’s engineering consultant to identify potential Inflow and Infiltration sources within the Town’s collection system. Services included: continuous flow monitoring at multiple locations throughout the Town and CCTV inspections of more than one-hundred and fifty thousand (150,000) linear feet of sewer line.
What is the difference between low flow groundwater sampling and standard groundwater protocol?
The primary purpose of low flow sampling is to purge and sample wells at rates comparable to ambient groundwater flow so that drawdown of the water level is minimized and mixing of stagnant water within the well casing is reduced.
City of Melrose, MA – Flow Monitoring Services
Melrose operates and maintains two (2) water pump stations, eighty (80) miles of water, and seventy-eight (78) miles of sewer line. During a City-wide flow monitoring program in the spring of 2016, EST installed and maintained thirty (30) meters, five (5) groundwater gauges and a rain gauge for ten (10) weeks.
Casella Waste Systems – Water Quality Monitoring, Massachusetts Landfill Sites
Casella Waste Systems is a Rutland, VT-based company that owns or operates fourteen (14) landfills in the Northeastern United States. EST performed water quality monitoring at Casella landfill sites in Worcester, MA Southbridge, MA and Hardwick, MA.