Current Projects

The laboratory’s experienced and highly qualified staff is involved in a wide range of projects notsimply limited to laboratory analyses. Some highlights of current laboratory activities are described below:

Compliance Monitoring:
IEC staff conduct inspections with sampling at industrial facilities and municipal wastewater treatment plants year-round. These inspections, which are planned in coordination with state and federal authorities, include sampling and an inspection of processes, equipment, and plant records. Samples collected at these facilities are analyzed in the Commission’s laboratory to determine compliance with the IEC’s Water Quality Regulations and with each facility’s specific NPDES and SPDES permits, where applicable. Parameters typically analyzed include pH, temperature, residual chlorine, fecal coliform, BOD,metals, nutrients, oil and grease, TSS, chlorides, turbidity, and settleable solids.

The Commission reports results of inspections to the facility, the appropriate state
environmental department, and the US EPA and enters findings into the EPA developed database, ICIS (

IEC Current Projects
Inspecting a clarifier at an Exide Group
 remediation project in Fairfield, CT

IEC Current Projects

Ambient water quality monitoring
on Long Island Sound

Long Island Sound Surveys:

Since 1991, the Commission has conducted water quality sampling surveys throughout the summer in support of the Long Island Sound Study. The purpose of these surveys is to monitor dissolved oxygen in the western portion of Long Island Sound, its embayments, and the upper East River.

Over the years, the Commission has expanded the scope of the surveys, adding additional stations and parameters to meet the needs and goals of Long Island Sound stakeholders. Currently, the Commission samples 22 stations over a 12 week period from late June through mid-September. During each survey, in situ measurements are made for pH, temperature, salinity, dissolved oxygen and Secchi disk depth. Surface samples are also collected at each station for the analysis of chlorophyll-a, TSS, BOD and nutrients.

The Commission uses these data sets to assess the quality of its District waters and makes them publicly available through STORET, EPA’s national data depository (

Pump Station Inspections:

IEC began a pump inspection program in the Summer of 2010. Pump station inspections consist of a tour of the facility and an evaluation of pumps, pump logs, power supply, backup power supply, testing schedules, and alarm systems.

Inspections are performed in accordance with an EPA approved checklist and QAPP. Information pertaining to station capacity, wet weather and dry weather flows, bypass capability, overflow history and infiltration and inflow issues is obtained as well. Preventive maintenance records are reviewed.

All findings and recommendations are included in an inspection report, which is distributed to the appropriate regional offices of the state environmental agencies and the EPA.

IEC Current Projects
Pump station in Suffolk County, NY
Short-Notice Sampling and Investigations:

IEC has the capability to perform short-notice inspections, sampling and analyses in response to regional environmental emergencies, concerns, or natural disasters. In the past, IEC has assisted local environmental agencies with microbiological analyses to determine environmental impacts after Hurricane Irene and a fire at the North River Water Pollution Control Facility in New York City, and to investigate persistent high pathogen
concentrations in Sparkill Creek, a bi-state waterway that flows through Rockland County, NY and Bergen County, NJ before entering the Hudson River.

IEC’s ability to mobilize and perform sampling quickly at the request of local agencies makes IEC a valuable resource in times of need. In 2014, IEC formalized the process by which such short-notice work is performed by drafting a QAPP outlining short-notice sampling procedures, which has been approved by the EPA.
IEC Current Projects
IEC Current Projects   CSO & MS4 Inspections:

Stormwater has become a primary water quality issue throughout the region. IEC performs inspections of Combined Sewer Overflow (CSO) and Municipal Separate Storm Sewer System (MS4) outfalls throughout its District to detect illicit discharges and work toward their elimination.

IEC coordinates with its member states and the EPA to identify priority watersheds to include under its Outfall Reconnaissance Inventory and Dry Weather Outfall Survey Inspections, which are performed according to an EPA-approved QAPP.

Additional Monitoring for NYSDEC:

As part of NYSDEC’s Rotating Integrated Basin Studies (RIBS), staff began a pilot program in 2015 in conjunction with with NYSDEC’s Bureau of Water Assessment and Monitoring to expand this study to include sampling and analyses at an additional station in western Long Island Sound.
This will expand the NYSDEC routine RIBs monitoring network, currently 19 stations, to include a station south of Poughkeepsie, NY.
  IEC Current Projects

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