ABOUT ECSI
ECSI combines field work, laboratory precision, and regulatory understanding
to help clients meet environmental monitoring and compliance needs.
+ Established in 1984
+ Headquartered in Middletown, Delaware
+ Serving the mid-Atlantic coast, Great Lakes region,
and Ohio + River drainage
+ Environmental impact monitoring specialists
+ Field teams, research vessels, and laboratory expertise
+ Supporting permitting, monitoring, compliance, and ecological assessment needs

Environmental Consulting Services, Inc. is a Delaware-based environmental consulting company headquartered in Middletown and serving clients across the mid-Atlantic coast, Great Lakes region, and Ohio River drainage.
Founded in 1984, ECSI supports environmental permitting, monitoring, compliance, and ecological assessment needs through field-tested expertise, specialized equipment, experienced personnel, and defensible data.
ECSI was built on expert knowledge of environmental impact monitoring, including work mandated by cooling water intake regulations under Section 316(b) of the Clean Water Act.
ECSI’s scientists and technicians support a wide range of environmental monitoring and ecological assessment services, including wetland delineation, bottom trawling, beach seining, taxonomy, entrainment and impingement studies, environmental site assessments, and permitting support.
ECSI supports projects throughout the mid-Atlantic coast, Great Lakes region, and Ohio River drainage, with field teams and laboratory services suited to marine, estuarine, freshwater, and terrestrial environments.
FLEET & FIELD CAPABILITIES
Conveniently stored on trailers at ECSI headquarters, our five research vessels are ready
for deployment wherever and whenever field work requires them. The fleet supports work across varied
sampling environments, including bottom trawling, beach seining, crab trap and gill netting,
water and sediment sample collection, and electrofishing.

1992 Parker Sport Cabin
Twin 150 HP Yamaha Outboard motors
25 feet long

2006 Privateer Skimmer
Honda EFI135 motor
23 feet long
beach seine, crab traps, gill netting, water sample collection

1996 Carolina Skiff DLX
Honda 50 HP motor
21 feet long
beach seine, crab traps, gill netting, water sample collection

1988 Parker Sport Cabin one 250 Mercury Optimax motor and one 9.9 Mercury 4-stroke motor
25 feet long
Email us to discuss your environmental monitoring, permitting, compliance,
laboratory, field, or industrial operations needs.
Environmental Consulting Services, Inc.
100 South Cass Street, Middletown, Delaware 19709, United States
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