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Vantage to Pomona Heights Chapter 2 230 kV Transmission Line Project FEIS Proposed Action and Alternatives PAGE 2-58 SGW-9: Pacific Power will provide spill prevention kits at designated locations on the Project site and at the hazardous material storage areas. SGW-10: Pacific Power will stabilize cut and fill slopes. SGW-11: Pacific Power will minimize erosion by applying and maintaining standard erosion and sediment control methods. These may include using certified weed-free straw wattles and bale barriers and silt fencing which would be placed at construction boundaries and where soil would be disturbed near a wetland or waterbody. Specific erosion and sediment control measures and locations will be specified in a SWPPP as part of the Project’s POD. SGW-12: Construction operations will avoid, to the extent feasible, the disturbance of soil during the wet season. Construction crews will reduce the amount of soil compaction by working when the ground is not wet, using equipment with more tires and wider tires to distribute the weight of the vehicle, and tilling the severely compacted areas after construction is completed or using ground mats when the ground is wet. SGW-13: To the extent possible, topsoil will be placed separately from sub-soils/bedrock during excavation and not comingled. Pacific Power will replace soil in reverse order. SGW-14: Pacific Power’s horizontal directional drilling process will incorporate erosion and sediment control and frac-out contingency practices that protect water and soil resources and ensure proper detection and response to frac-out events. Should horizontal directional drilling be employed as an NNR Alternative - Underground Design Option construction technique, a Frac-Out Contingency Plan will be developed and implemented by the Pacific Power. 2.3.10 Public Health and Safety PHS-1: Pacific Power will respond to complaints of radio or television interference generated by the proposed transmission line project by investigating the complaints and implementing appropriate mitigation measures. The new transmission line will be patrolled on a regular basis so that damaged insulators or other transmission line equipment that could cause interference, are repaired or replaced. PHS-2: To eliminate induced currents and voltages onto conductive objects sharing a ROW (should they occur), mitigation will be applied, as needed, to the mutual satisfaction of the parties involved. PHS-3: Hazardous materials will not be drained onto the ground or into streams or drainage areas. All construction waste including trash and litter, garbage, other solid waste, petroleum products and other potentially hazardous materials will be removed to a disposal facility authorized to accept such materials weekly. PHS-4: Appropriate safety guidelines will be followed as required by federal regulations (29 CFR Parts 1910.109) and state regulations (WAC 296-52) relating to blasting operations, should blasting be necessary. Pacific Power’s contractors will coordinate with WSDOT prior to blasting within 1,320 feet of I-82 or SR-243. PHS-5: Appropriate traffic control measures will be utilized by Pacific Power to ensure public safety during construction and as detailed in a WSDOT approved Traffic Management Plan. Pacific Power’s contractor(s) will coordinate with WSDOT in advance of any traffic delays or road blockages, especially prior to holidays. PHS-6: Towers and/or ground wire will be marked with highly visible devices where required by governmental agencies (e.g., FAA).