Property:NEPA Resource Imposed Mitigation

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Property Name NEPA Resource Imposed Mitigation
Property Type Text
Description Agency imposed mitigation plan to minimize the risk of a potential negative impact to a NEPA resource with a geothermal development effort.


Pages using the property "NEPA Resource Imposed Mitigation"

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A

Antelope Valley Neset +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Wildlife_Resources +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Access_and_Transportation +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Wastes_Hazardous_or_Solid +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Air_Quality +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Water_Quality +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Cultural_Resources +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Invasive,_Nonnative_Species +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Paleontological_Resources +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.
Antelope Valley Neset#NEPAImpact_with_Vegetation +See [http://ww2.wapa.gov/sites/western/business/selling/Documents/2013%20Construction%20Standards.pdf Westerns Construction Standards] (Standard 13-Environmental Quality Protection) for applicable mitigation measures.

B

BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Water_Quality +*The quality of selected ground water wells would continue to be monitored to determine if the injection of geothermal fluids may be impacting the levels of geothermal fluid components in the produced waters. Ground water wells to be monitored would include some of those within the unit area with high total dissolved solids, as well as other existing or new ground water wells close to the geothermal operations area. Final design and implementation of the ground water quality monitoring program would occur before the commencement of geothermal production and injection operations. *In the case negative affects (increasing levels of geothermal fluid components) are recorded by the monitoring program, NGP would work with the BLM, NDOM, NDEP and the Nevada State Water Engineer to adjust geothermal fluid production or injection to remove or minimize negative affects to ground water wells or the geothermal resource. *NGP would also monitor produced geothermal fluids, and within 30 days of NGP’s receipt of produced water analytical laboratory result(s), the BLM would be provided with a copy of the laboratory result(s). A map or written description of the sample collection point(s) would accompany the result(s).
BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Visual_Resources +*All drill rig and well test facility lights would be limited to those required to safely conduct the operations, and would be shielded and/or directed in a manner which focuses direct light to the immediate work area. *Permanent project facilities within the geothermal operations area would be limited to those required to safely conduct the operations, and would be shielded and/or directed in a manner which focuses direct light to the immediate work area. *Permanent project facilities within the geothermal operations area would be painted a color, subject to approval by the authorized officer, which would blend with the landscape. Prior to painting, NGP would contact the Winnemucca Field Office project lead. *The average spacing of 300-660 feet between transmission line pole structures would be increased to the maximum extent possible where the transmission lines cross the visually sensitive trails/roads. *The switching station at the south end of the ROW would be painted a color, subject to approval by the authorized officer, which would blend with the landscape. Prior to painting, NGP would contact the Winnemucca Field Office project lead.
BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Migratory_Birds +Initial ground disturbing activities would not be conducted during the migratory bird nesting season (March through July) unless necessary, and then only after inventories for migratory birds and nests were conducted by a qualified biologist acceptable to the BLM. This survey would be conducted to identify either breeding adult birds or nest sites within the specific areas to be disturbed. If active nests are present within these areas to be disturbed, NGP would coordinate with the authorized officer to develop appropriate protection measures for these sites, which may include avoidance, construction constraints, and/or the establishment of buffers.
BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Water_Quantity +The depth to ground water in selected ground water wells would continue to be monitored to determine if the shallow ground water production program may be lowering the groundwater table. Ground water wells to be monitored would include existing or new ground water wells both close to and farther away from the geothermal operations area. Final design and implementation of the ground water level monitoring program would occur before the commencement of geothermal production and injection operations.
BLM-NV-WN-ES-08-01-1310, NV-020-08-01 +Initial ground disturbing activities would not be conducted during the migratory bird nesting season (March through July) unless necessary, and then only after inventories for migratory birds and nests were conducted by a qualified biologist acceptable to the BLM. This survey would be conducted to identify either breeding adult birds or nest sites within the specific areas to be disturbed. If active nests are present within these areas to be disturbed, NGP would coordinate with the authorized officer to develop appropriate protection measures for these sites, which may include avoidance, construction constraints, and/or the establishment of buffers., Unoccupied disturbed areas shall be seeded by the applicant as directed by the BLM Winnemucca Field Office using the following native seed mixture and application rate. Any variance in the mix would be coordinated first with the BLM Winnemucca Field Office., The depth to ground water in selected ground water wells would continue to be monitored to determine if the shallow ground water production program may be lowering the groundwater table. Ground water wells to be monitored would include existing or new ground water wells both close to and farther away from the geothermal operations area. Final design and implementation of the ground water level monitoring program would occur before the commencement of geothermal production and injection operations.,
BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Invasive,_Nonnative_Species +*For a period of three years following the commencement of construction, project sites shall be inventoried by the lessee for the presence of invasive, nonnative species. Inventory data shall be reported to the BLM WFO project Lead within one week of receipt by the lessee. The area shall be treated with BLM certified pesticides following BLM approval of a pesticide use proposal if species are present. *Following the three year period, periodic inventory for the presence of invasive nonnative species would be performed at project sites, with treatment occurring as necessary. The periodic inventory and treatment would occur for as long as the lessee is present at the site. *All trucks (excluding pick-up trucks) and construction equipment should be washed to remove soil and plant parts. A central washing facility would be provided for this purpose at a location either in Winnemucca or at a facility approved by the authorized officer. The washing station should not be placed within 150 feet of any body of water or ditch line, nor where the wash water can flow downslope.
BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Wastes_Hazardous_or_Solid +*Absorbent pads or sheets would be placed under likely spill sources. *The hazardous material spill and disposal contingency plan will be submitted to and approved by BLM and made readily available onsite before operations begin. *The length of time which geothermal fluid, storm water runoff or other liquids are temporarily stored in any reserve pit would be minimized. Use of reserve pits is limited to the active drilling and testing operations. Fluids from flow testing would only be produced in accordance with permits and plans. The larger reserve pit constructed adjacent to well 26A-14 would be treated with bentonite to minimize the infiltration of geothermal fluids into the shallow ground water aquifer. The fluid level in the larger reserve pit would be monitored daily during initial testing to verify the treatment. The results of the monitoring would be reported to the BLM.
BLM-NV-WN-ES-08-01-1310, NV-020-08-01#NEPAImpact_with_Vegetation +Unoccupied disturbed areas shall be seeded by the applicant as directed by the BLM Winnemucca Field Office using the following native seed mixture and application rate. Any variance in the mix would be coordinated first with the BLM Winnemucca Field Office.
Barren Ridge Renewable Transmission#NEPAImpact_with_Water_Quality +Stormwater Pollution Prevention Plan. A project-specific Construction Stormwater Pollution Prevention Plan (SWPPP) will be prepared and implemented prior to the start of construction. The SWPPP will utilize Best Management Practices (BMPs) to address the storage and handling of hazardous materials and sediment runoff during construction activities. Spill Prevention, Countermeasure, and Control Plan. LADWP will prepare or update existing Spill Prevention, Countermeasure, and Control Plan (SPCC Plan) for proposed and/or expanded switching stations if necessary or required by EPA guidelines. The plans will include engineered and operational methods for preventing, containing, and controlling potential fluid releases, and provisions for quick and safe cleanup. All vehicles and equipment operating within 100 feet of an active stream will be inspected daily to ensure they are free of any leaks of fuel, cooling, or lubricating fluids. Refueling, or addition or changing of oil and other fluids for equipment and heavy machinery shall be performed only at approved staging and construction yards. Staging and construction yards will be located on upland sites and spill containment measures will be used to minimize risk of spill or drainage into waterways. Oil and other fluids will be disposed of as required by California law. Emergency refueling, or emergency addition or changing of oil or other fluids shall not be performed within 500 feet of natural stream channels or wetlands. Use of heavy equipment within a flowing channel will be avoided if possible; however, should it be necessary, the Environmental Monitor will be notified prior to initiation of construction activities to allow adequate time for site visits and surveys, if necessary. Asphalt or cement equipment will not be rinsed in, nor excess products deposited into any stream or other waterway. Asphalt or concrete effluent will not be allowed to enter into stream or RCA. Effluent will be removed from standing water and prevented from entering a waterway. Fill material, including brush, loose soils, and other similar debris will not be deposited within a stream channel or on a stream bank.
Barren Ridge Renewable Transmission#NEPAImpact_with_Soils +Soil Management Plan. A Soil Management Plan will be developed and implemented for construction of the proposed Project. The objective of the Soil Management Plan is to provide guidance for the proper handling, onsite management, and disposal of impacted soil that might be encountered during construction activities. The plan will include practices that are consistent with California Title 8, Occupational Safety and Health Administration (Cal-OSHA) regulations, as well as appropriate remediation standards that are protective of the planned use. The Plan will provide guidelines for identification of impacted soil, assessing impacted soil, soil excavation, impacted soil storage, verification sampling, and impacted soil characterization and disposal. In the event that potentially contaminated soils are encountered within the footprint of construction, soils will be tested and stockpiled. The appropriate Certified Unified Program Agency (CUPA) will determine whether further assessment is warranted.
Barren Ridge Renewable Transmission +Prior to the start of construction, LADWP shall submit a Traffic Control Plan (TCP) to agencies with jurisdiction over public roads that would be directly affected by construction activities (where road closures or encroachments would be necessary). The Plan shall define the locations of all roads that would need to be temporarily closed due to construction activities, and also define the use of flag persons, warning signs, lights, barricades, cones, etc. for each construction closure. The plan shall include measures to avoid disruptions or delays in access for emergency service vehicles and to keep emergency service agencies informed of road closures, detours, and delays. Police departments, fire departments, ambulance services, and paramedic services shall be notified in advance of each closure by LADWP. The Plan shall also include contact information for those agencies, assign responsibility for notifying the service providers, and specify coordination procedures. Copies of the Plan shall be provided to all affected police departments, fire departments, ambulance and paramedic services. The alignment of any new access roads or overland routes shall follow the designated area’s landform contours where possible, providing that such alignment does not additionally impact resource values. To the extent practical, any re-grading of access roads shall be the minimum necessary to provide safe access of construction equipment, and erosion control measures. Construction vehicles shall use paved roads to access the construction site when available. The design and use of roadways or access trails within the ANF shall be coordinated with the District and Forest Supervisor’s office. The ANF may specify conditions under which use of the Forest system roads and lands shall be permitted. These conditions may include restoring or blocking access at some service trails and repairing any roadway damage or erosion damage caused by construction activities or traffic. Any project-related damage to existing Forest system roads shall be repaired at LADWP’s cost. Any construction or installation work requiring the crossing of a roadway or railway right-of-way would incorporate the use of guard poles, netting, or similar means to protect moving traffic and structures from the activity. If necessary on state highways, continuous traffic breaks would be planned and provided. To minimize traffic congestion and delays during construction to the extent feasible, LADWP shall restrict all necessary lane closures or obstructions on major roadways associated with Project construction activities to off-peak periods, as feasible. Lane closures should be avoided during the 6:00 a.m. to 9:00 a.m. timeframe and the 3:30 p.m. to 6:30 p.m. timeframe, or as otherwise defined within the TCPs. Where Project construction and/or maintenance access could close one or multiple lanes, and where significant degradations in roadway operations could result, roadway diversions should be provided to restore the travel lanes through temporary roadway restriping. Where Project construction and/or maintenance access could close bicycle lanes or trails, temporary diversions should be provided where feasible to provide continued access around the construction or maintenance area. Where Project construction and/or maintenance access could cut-off access to nearby recreation areas, and where no alternate route exists to the recreation areas, measures should be used to provide a minimum of one lane reversible access (with flagmen) through the construction/maintenance area, or work should only be conducted during off-peak hours or evening hours only. Any damage to local paved roadways caused by Project construction and/or maintenance shall be repaired and the roadways shall be restored to their previous condition. In areas where soils and vegetation are particularly sensitive to disturbance, existing access roads would be repaired only in areas where they are otherwise impassable or unsafe. Construction activities shall be limited to the designated right-of-way and approved access and work areas as identified in the ROD and POD. Any deviations from the approved areas must be cleared with the jurisdictional agency and/or landowner. Grading areas shall be clearly marked and no equipment or vehicles shall disturb slopes or drainages outside of the grading area. No paint or permanent discoloring agents will be applied to rocks or vegetation to indicate survey or construction activity limits. In construction areas (e.g., marshalling yards, tower sites, spur roads from existing access roads) where ground disturbance is significant or where recontouring is required, surface restoration shall occur as required by the landowner or land management agency. The method of restoration will normally consist of returning disturbed areas back to their natural contour, reseeding, installing cross drains for erosion control as necessary, placing water bars in the road as necessary, and filling ditches. Soil excavated from construction activities shall not be left at work areas where the slopes exceed 10 percent or where the work area is within 100 feet of a natural stream or waterbody (receiving water). In these situations, loose soil shall be used elsewhere within the immediate area or stockpiled at the staging area. Stockpiled soil shall be managed as required by the SWPPP. No stockpiling or spreading of soil or other materials shall occur within stream channels. During grading or excavation work for the Project, the contractor shall observe the exposed soil for visual evidence of contamination. If visual contamination indicators are observed during construction, the contractor shall stop work until the material is properly characterized and appropriate measures are taken to protect human health and the environment. The contractor shall document the exact location of the contamination and shall immediately notify a designated Environmental Monitor and propose actions for addressing the contamination in accordance with the Soil Management Plan. Existing watering facilities (e.g., tanks, developed springs, water lines, wells, etc.) will be repaired or replaced, if they are damaged or destroyed by construction activities, to their pre-disturbed condition as required by the landowner or land management agency. Construction activities shall be designed to minimize work on or use of local streets. In the event that local streets must be used for more than normal traffic purposes, an encroachment permit or similar authorization shall be obtained from the County (or other agency, as applicable). Any work requiring an encroachment permit shall include preparation of a traffic control plan or other management plan to minimize effects on local streets. Any damage to local streets will be repaired, and the street system will be restored. Local emergency service providers shall be coordinated with to ensure that construction activity and any associated lane closures or traffic impacts will not significantly affect emergency response vehicles., Hazardous Materials/Waste Management Plan. A project-specific hazardous materials management and hazardous waste management program will be developed prior to initiation of the project. The program will outline proper hazardous materials use, storage and disposal requirements as well as hazardous waste management procedures. The program will identify types of hazardous materials to be used during the project and the types of wastes that will be generated. All project personnel will be provided with project- specific training. This program will be developed to ensure that all hazardous materials and wastes were handled in a safe and environmentally sound manner. Hazardous wastes will be handled and disposed of according to applicable rules and regulations. Employees handling wastes will receive hazardous materials training and shall be trained in hazardous waste procedures, spill contingencies, waste minimization procedures and Treatment, Storage and Disposal Facility (TSDF) training in accordance with OSHA Hazard Communication Standard and 22 CCR. If degraded soil or groundwater is encountered during excavation (e.g., there is an obvious sheen, odor, or unnatural color to the soil or groundwater), it shall be excavated, tested, and disposed of in accordance with state hazardous waste disposal requirements. The Plan shall also include procedures detailing emergency responses to releases of hazardous materials. It will prescribe hazardous materials handling procedures for reducing the potential for a spill during construction, and will include an emergency response program to ensure quick and safe cleanup of accidental spills. All hazardous materials spills or threatened release, including petroleum products such as gasoline, diesel, and hydraulic fluid, regardless of the quantity spilled, will be immediately reported to the appropriate agency as outlined in the Plan if the spill has entered a navigable water, stream, lake, wetland, or storm drain, if the spill impacted any sensitive area including conservation areas and wildlife preserves, or if the spill caused injury to a person or threatens injury to public health. All construction personnel, including environmental monitors, will be aware of state and federal emergency response reporting guidelines. Health and Safety Plan. A Health and Safety Plan shall be prepared and implemented. The Plan shall address emergency medical services available on-site and within the project area. The Plan shall also address specific emergency response and evacuation measures. All construction vehicles shall maintain a hazardous materials spill kit, which shall include absorbent materials, tarps, small storage containers or waterproof bags, and latex gloves. Field personnel shall be made aware of these kits and instructed on how to use them. Helicopters utilized for construction will be refueled at helicopter staging areas or local airports. Procedures will include the use of drop cloths made of plastic and drip pans and trays to be placed under refilling areas to ensure that chemicals do not come into contact with the ground. Refueling areas will be located in designated areas where absorbent pads and trays are available. LADWP shall contact Angeles National Forest (ANF) dispatch seven days prior to helicopter use and shall provide ANF with radio frequencies being used by the aircraft, aircraft identifiers, the number of helicopters that will be used while working on National Forest System (NFS) lands at any given time, and the flight pattern of helicopters used on NFS lands. If a wildfire occurs in the Project area, upon contact from the Forest Aviation Officer, helicopters in use by LADWP shall immediately cease construction activities and not restart aerial operations until the Forest Aviation Officer provides clearance. The Applicant shall clear brush and dead and decaying vegetation that would pose a fire hazard from the work area prior to starting construction and/or maintenance work. The work area includes areas of construction (e.g., tower sites, switching station site) within the transmission ROW, construction laydown areas, pull sites, access roads, parking pads, and any other sites adjacent to the ROW where personnel are active or where equipment is in use or stored. Cleared vegetation shall either be removed or chipped and spread onsite in piles no higher than six inches. This will be determined in consultation with individual appropriate land management agencies., Stormwater Pollution Prevention Plan. A project-specific Construction Stormwater Pollution Prevention Plan (SWPPP) will be prepared and implemented prior to the start of construction. The SWPPP will utilize Best Management Practices (BMPs) to address the storage and handling of hazardous materials and sediment runoff during construction activities. Spill Prevention, Countermeasure, and Control Plan. LADWP will prepare or update existing Spill Prevention, Countermeasure, and Control Plan (SPCC Plan) for proposed and/or expanded switching stations if necessary or required by EPA guidelines. The plans will include engineered and operational methods for preventing, containing, and controlling potential fluid releases, and provisions for quick and safe cleanup. All vehicles and equipment operating within 100 feet of an active stream will be inspected daily to ensure they are free of any leaks of fuel, cooling, or lubricating fluids. Refueling, or addition or changing of oil and other fluids for equipment and heavy machinery shall be performed only at approved staging and construction yards. Staging and construction yards will be located on upland sites and spill containment measures will be used to minimize risk of spill or drainage into waterways. Oil and other fluids will be disposed of as required by California law. Emergency refueling, or emergency addition or changing of oil or other fluids shall not be performed within 500 feet of natural stream channels or wetlands. Use of heavy equipment within a flowing channel will be avoided if possible; however, should it be necessary, the Environmental Monitor will be notified prior to initiation of construction activities to allow adequate time for site visits and surveys, if necessary. Asphalt or cement equipment will not be rinsed in, nor excess products deposited into any stream or other waterway. Asphalt or concrete effluent will not be allowed to enter into stream or RCA. Effluent will be removed from standing water and prevented from entering a waterway. Fill material, including brush, loose soils, and other similar debris will not be deposited within a stream channel or on a stream bank.,
Barren Ridge Renewable Transmission#NEPAImpact_with_Vegetation +Allow natural vegetation to reoccur on temporarily disturbed areas following the completion of construction. Weed control measures on non-federal lands shall be implemented as determined in consultation with CDFG and the Counties of Los Angeles and Kern Agricultural Commissions. Every effort will be made to minimize vegetation removal and permanent loss at construction sites. Native vegetation will be flagged for protection or stockpiled for recontouring use at the discretion of the Biological Monitor and the Construction Supervisor. In construction areas where recontouring is not required, vegetation will be left in place wherever possible and the original contour will be maintained to avoid excessive root damage and allow for resprouting. Disturbance will be limited to overland driving where feasible to minimize changes in the original contours. LADWP would obtain appropriate Tree Removal Permits when necessary from the appropriate government agencies. In accordance with the obtained permits, LADWP shall avoid or minimize impacts to protected trees.
Barren Ridge Renewable Transmission#NEPAImpact_with_Visual_Resources +A “dulled” metal finish shall be used on new towers or rebuilt portions of existing towers to reduce visual impacts except where otherwise dictated by visual mitigation measures. Nonspecular conductors shall be used to reduce visual impacts. Project features will be placed so as to avoid sensitive features including, but not limited to, riparian areas, water courses, and cultural sites, and/or to allow conductors to clearly span the features, within limits of standard tower design. This will minimize the amount of sensitive features disturbed and/or reduce visual contrast. Drainage control features will be installed, as appropriate, to minimize the amount of stormwater flow from areas of active construction. Details would be described in the SWPPP.
Barren Ridge Renewable Transmission#NEPAImpact_with_Wildlife_Resources +Biological Monitor. For areas identified as environmentally sensitive, such as streams, wetlands, riparian areas, and other environmentally sensitive areas, a biological monitor shall be present during ground disturbing construction activities. The qualified biologist shall conduct monitoring for any area subject to disturbance from construction activities that may impact biological resources. The biological monitor’s duties include minimizing impacts to special-status species, native vegetation, wildlife habitat, and unique resources, as well as to identify potential issues or impacts to biological resources and report those to the authorized biologist. Where appropriate, the monitor will flag the boundaries of biologically sensitive areas and monitor any construction activities in these areas to ensure that ground disturbance activities and impacts occur within designated limits. Worker Environmental Awareness Program. A Worker Environmental Awareness Program (WEAP) will be implemented to educate all construction personnel of the area’s environmental conditions and the environmental protection measures that must be adhered to. An environmental training program will be established to communicate environmental concerns and appropriate work practices, including spill prevention, emergency response measures, protection of biological and cultural resources, and proper Best Management Practice (BMP) implementation, to all construction and maintenance personnel. Construction crews will avoid impacting the streambeds and banks of any streams along the route to the extent feasible. When construction or maintenance work affects the bed, bank or margins of a stream under CDFG jurisdiction, LADWP will notify CDFG as required under Fish and Game Code Section 1602, which may include securing a Streambed Alteration Agreement.
Barren Ridge Renewable Transmission#NEPAImpact_with_Air_Quality +Only clean-burning on-road and off-road diesel engines shall be used. Where feasible, heavy-duty diesel powered construction equipment manufactured after 1996 (with federally mandated “clean” diesel engines) shall be used. Construction workers shall carpool to and from the construction site when possible. All trucks hauling soils or other loose materials shall be covered, or maintain at least two feet of freeboard (distance between the material and the top of the truck). Where visible soil material is carried onto adjacent public streets, the affected streets shall be cleaned daily with water sweepers.
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