Waters of the United States Delineation. IES will provide professional services to delineate all waters of the United States, including wetlands, within the project site. IES wetland ecologist will delineate the jurisdictional limits of the streams based on 33 Code of Federal Regulations (CFR) 328.3[e] and delineate the jurisdictional limits of any wetlands based on the 1987 USACE Wetland Delineation Manual and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region (Version 2.0), and any current Regulatory Guidance Letters. The boundaries of all of these water features identified in the field will be recorded with a Global Positioning System (GPS) that is capable of sub-meter accuracy. After the delineation is completed, IES will digitize these waters of the United States for use by the client for planning, impact calculation, and illustration purposes. This delineation will be provided to the engineer/client for inclusion in their engineering plans to avoid and minimize impacts to waters of the United States (if any are present on the site). The deliverable for this task is a delineation report that includes methods, results, and conclusions, along with the necessary data forms, photographs, maps, and a delineation map. The conclusion of this report will detail why any water features on the site are or are not considered waters of the United States.
Waters of the United States Delineation. NSR will conduct a delineation of waters of the United States and prepare a report that can be submitted to the U.S. Army Corps of Engineers (Corps) for verification in support of Clean Water Act permitting, if determined to be necessary. The delineation will entail a review of aerial imagery, topographic maps, and available wetlands data for the study area; a field survey to delineate the boundaries of federal jurisdictional waters, including wetlands, within the BSA, using methods prescribed by the Corps; and preparation of a report. Maps will be prepared, utilizing geographic information systems technology, on base topographic maps of the study area or aerial imagery provided by the County or DHA. Results of the delineation will be provided in a report, which will be provided to the County for review and approval. The delineation report will contain background information, data sheets, and a delineation map (minimum scale of 1”=200’). Following incorporation of comments provided by the County, NSR will submit the wetland delineation report to Caltrans District 1 Local Assistance for review and approval. Following approval by Caltrans, NSR will submit a copy of the wetland delineation report to the ACOE (San Francisco District) with a written request for verification for approval on behalf of the County.
