Close this search box.

ECORP Provides Hydroacoustic Services for Monitoring Underwater Noise

ECORP Provides Hydroacoustic Services for Monitoring Underwater Noise: Man Clicking Photo at Construction Site

In-water construction projects are subject to numerous regulatory permit conditions to protect aquatic life, particularly special-status fishes and marine mammal species. Construction activities that generate underwater noise, such as pile-driving with diesel impact hammers, may produce levels that are harmful or even lethal to fish and marine mammals. As such, the underwater noise levels associated with these projects are typically subject to limitations established by the National Marine Fisheries Service (NMFS).

In-water construction site


Monitoring noise levels is routinely required in permits and authorizations provided by NMFS, the U.S. Fish and Wildlife Service (USFWS), and the California Department of Fish and Wildlife (CDFW) and requires the expertise of biologists or acousticians trained in hydroacoustics (i.e., underwater sound). 

Underwater noise monitoring devices


ECORP’s aquatic biologists are trained and experienced in all aspects of underwater noise monitoring, including working with NMFS, USFWS, and CDFW to delineate action areas for monitoring, preparing hydroacoustic monitoring plans, implementing underwater noise monitoring for permit compliance, and working with our clients to minimize underwater noise levels. Our staff are equipped with state-of-the-art underwater noise monitoring equipment for boat-based operations in inland, estuarine, and coastal waters. ECORP provides a full range of hydroacoustic monitoring services, from project planning and permitting assistance through implementation, data analyses, and reporting. 

ECORP’s key underwater noise monitoring projects include:

  • San Joaquin Area Flood Control Agency’s Smith Canal Gate Project
  • Central Lathrop Stormwater Outfall Construction Project
  • White Slough Stormwater Outfall Construction Project
  • City of West Sacramento’s Raley’s Dock Construction Project
  • San Diego Unified Port District’s Shelter Island Boat Launch Facility Improvements Project

 If you would like to discuss your project’s underwater noise monitoring needs, please contact Dave ThomasTom Scofield, or Jeff Tupen at (916) 782-9100, or Brian Zitt at (714) 648-0630.

See our Careers page for more Environmental Consulting Careers at ECORP.

Sign up for the ECORP Newsletter

Sign up for the ECORP Newsletter to receive updates related to development, environmental regulations, compliance and more.

By submitting this form, you are consenting to receive marketing emails from: . You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact