Less than Significant Impact Clause Examples

Less than Significant Impact. No Impact Mitigation Measures: None Discussion:

Less than Significant Impact. The proposed project would likely not introduce additional sources of polluted runoff or generate other impairments of water quality. Implementation of the SWPPP and BMPs, as described in (b), above, would ensure that the proposed project does not contribute additional sources of polluted runoff.

Less than Significant Impact. During construction, the movement of crews, and equipment would result in temporary increases in traffic on the surrounding roadways. The equipment needed for the construction would make one trip to the property and one trip leaving the site once construction is complete. Approximately six to twelve construction employees would need to access the site daily during construction, over approximately 101 days (Phase 1) and

Less than Significant Impact. The project includes the construction of upland mound areas that could impede or redirect floodflows in the Yolo Bypass. However, as noted above in the discussion in Section (d), the hydrology report, and the County’s peer review of it, concluded that only minor local changes in the water surface elevation or water velocities during the most probable 100-year flood would occur due to the project.

Less than Significant Impact. The project could be affected by climate change impacts, specifically sea level rise. The project is located in the Yolo Bypass area and portions of the project site are currently flooded on a regular basis. Projections of the sea level rise caused by global warming and climate change have been prepared by the USGS, and are included in the Final EIR of the 2030 Yolo Countywide General Plan (Yolo County, 2009b). The USGS projections show that areas within the one meter average daily tidal range will be inundated by sea level rise by 2100. These inundated areas include large portions of the southern portion of Yolo County including the project site.

Less than Significant Impact. The proposed project will require the short-term use of construction equipment for grading, and the storage of fuel and oil for the equipment. Construction equipment used on the site would include excavators, backhoes, scrapers, dump trucks, and water trucks. or the environment. a. All construction staging activities will occur within a designated staging area. The staging area will be marked in the field and on the construction plans. All refueling and maintenance activities will occur within the staging area. b. Any hazardous materials spill will be cleaned up immediately, in accordance with all federal, state, and local regulations. The contractor will be required to develop and implement a toxic materials control and spill response plan to regulate the use of hazardous materials associated with construction. The contractor will be required to: (1) prevent oil or other petroleum products, or any other substances that could be hazardous to aquatic life from contaminating the soil or entering watercourses; (2) establish a spill-prevention and countermeasure plan before construction that includes strict on-site handling rules to keep construction and maintenance materials out of drainages and waterways; (3) clean up all spills immediately according to the spill prevention and countermeasure plan, and notify DFG immediately of any spills and cleanup activities; (4) develop a spill prevention plan that includes the following information: i. A list of immediate containment response actions and extended response actions if necessary; ii. A list of responsible agencies to contact in the event of a spill emergency within 24 hours; iii. A list of spill containment equipment held on site as well as the location of the equipment on site; iv. Identify a contact and location of a professional clean up company; and v. Designate an onsite incident commander in the event of an emergency. This person will immediately inform DFG-OSPR in the event of an emergency. The incident commander will have complete control of construction and cleanup activities throughout the emergency and the eventual containment. c. Provide areas located outside the sensitive wetland areas and ditches for staging and storing equipment, materials, fuels, lubricants, solvents, and other possible contaminants; and d. Remove vehicles from near sensitive wetland areas and ditches before refueling and lubricating.

Less than Significant Impact. A Phase I Environmental Site Assessment was not been conducted for the project site. However, the site is undeveloped with any structures except for a recent barn and has been intensively cultivated in rice. There is no evidence of environmental impairment of the property from off site sources and no nearby contamination.

Less than Significant Impact. The proposed project would be constructed using diesel- powered heavy equipment. Diesel exhaust from construction activities may generate temporary odors while project construction is under way. However, there are no sensitive receptors of substantial numbers of people within the vicinity of the project. IV.

Less than Significant Impact. The project requires the issuance of a flood permit by Yolo County. According to Section 8-3.401 of the Yolo County Code, a Flood Hazard Development Permit shall be obtained before any construction or other development begins within any area of special flood hazards. According to Section 8-3.403(a) of the County Code, the Floodplain Administrator shall review all Flood Hazard Development Permits to determine that: (1) the permit requirements of the chapter have been satisfied; (2) all other required state and federal permits have been obtained; (3) the site is reasonably safe from flooding; and (4) the proposed development does not adversely affect the carrying capacity of areas where base flood elevations have been determined but a floodway has not been designated. For purposes of this chapter, “adversely affects” means that the cumulative effect of the proposed development when combined with all other existing and anticipated development will increase the water surface elevation of the base flood more than one foot at any point. In addition, Section 8-3.403(c) of the County Code requires the Floodplain Administrator, whenever a watercourse is to be altered or relocated, to “assure that the flood carrying capacity of the altered or relocated portion of said watercourse is maintained.” The engineering firm CBEC, Inc. prepared a hydraulic analysis for the proposed project (CBEC, Inc., 2010). The following is a summary of the report. The project includes the construction of upland mound area that could impede or redirect floodflows in the Yolo Bypass. However, the hydrology report concludes that development of the Capital Conservation Bank project will affect minor local changes in the water surface elevation and water velocity during the most probable 100-year flood but will only impact the water surface elevations or water velocities at the edge (banks) of Yolo Bypass if project vegetation is allowed to grow without annual grazing and then only by 0.01-foot. Yolo County Planning and Public Works Department retained a third party engineering consultant to peer review the EBEC hydraulics analysis. The county consultant, Pacific Hydrologic Incorporated (PHI), reviewed the applicant’s study and prepared a brief report documenting the conclusion that the methodology and modeling results of the applicant hydrology study were adequate to ensure that the project grading will not significantly increase flood risks (PHI, 2011). The PHI peer review states that “Provi...