AFFILIATED RESEARCHERS provided staff and equipment to support sediment transport and water quality investigations related to the installation of a pipeline crossing at Licking River, Kentucky. These services are important to project engineers and scientist for measuring potential effects of project related sediment disturbances on a population of endangered mussels.

AFFILIATED RESEARCHERS was tasked to conduct:

• RTK-GPS surveying;
• sediment deposition measurements using sediment traps;
• sediment deposition measurements using repeated bathymetric surveys; and,
• water sampling to enable laboratory measurement of suspended sediments.

Local survey control points were established by AFFILIATED RESEARCHERS at the project site (at 0.05’ accuracy) using RTK-GPS survey equipment and recognized National Geodetic Survey “OPUS” methods. These locally established survey controls were utilized by AFFILIATED RESEARCHERS for the project RTK-GPS base station and for survey equipment QAQC.

To assure real-time survey accuracy and reliability, highly-accurate RTK-GPS corrections were transmitted from the base station to the RTK-GPS survey equipment onboard the survey vessel.

AFFILIATED RESEARCHERS has developed a simple and effective method for measuring sediment deposition using sediment traps constructed of 18” in diameter, low-profile, plastic tubs capable of collecting approximately 1 ft3 of sediment. The sediment traps include an attachable pull-down lid to prevent collected sediments from being lost during recover. Sediment traps were placed by AFFILIATED RESEARCHERS’ staff at designated locations upstream of the project to provide a “control” of non-project related sediments; and downstream of the project to collect any project-related sediments.

AFFILIATED RESEARCHERS’ staff followed written procedures developed by the project scientists for the recovery, initial processing, and measurement of the collected sediments. Due to the limited access to the river, AFFILIATED RESEARCHERS’ 14’ aluminum boat and an electric powered “crab-pot puller” were used to recover the sediment traps.

To provide additional data, and a more robust sampling plan, AFFILIATED RESEARCHERS conducted repeated single-beam bathymetry surveys within the project area, utilizing hydrographic and RTK-GPS survey equipment. The bathymetric surveys were conducted utilizing a Knudsen Chirp dual-frequency single-beam echo-sounder system, Trimble RTK-GPS survey equipment, HYPACK hydrographic software in accordance with the US Army Corps of Engineers hydrographic survey manual.

Utilizing a Van Dorn type water sampler, AFFILIATED RESEARCHERS collected water samples upstream of the project to provide a “control” of non-project related suspended sediments, and downstream of the project provide comparable data of any project-related suspended sediments. Water samples were sent to a certified laboratory for analysis.

Since 1990, AFFILIATED RESEARCHERS has become a recognized leader in providing high quality environmental and technical services for municipalities, public utilities, energy companies, environmental-engineering firms, attorneys, Fortune 500 companies, as well as State and Federal agencies to include the DOD, NOAA, USACE, USCG, USEPA, and USFS.

Please contact AFFILIATED RESEARCHERS to discuss how our services can be useful on your project.