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Forest Uplands contribute less than 10% of the FSP loading, but more than a quarter of the total phosphorous loading to Lake Tahoe. Select Performance Measures (PMs) are tracked and reported based on the finding that the vast majority of the pollutant loading from undeveloped lands originates from paved and unpaved roads, disturbed areas and public facilities. As precipitation falling on these surfaces runs off, it picks up particles and nutrients. Unmitigated, these pollutants are deposited into nearby surface waters that drain to Lake Tahoe.
TMDL PM that tracks the amount of paved and unpaved roads in the Forest Uplands that are annually inspected, and, if necessary, maintained to minimize impacts to immediate downslope water quality. Field inspection informs resource managers of the need and urgency of maintenance. Maintenance includes repairs and/or improvements to existing stormwater retrofits as needed.
Environmental Improvement Program
TMDL Performance Measure that tracks the number of public facilities in the Forested Uplands that are retrofitted with BMPs to reduce runoff volumes and remove fine sediment particles and nutrients contained therein. Public facilities are administrative and/or recreational facilities such as parking lots, trailheads, and buildings located on lands owned by TMDL Non-urban Implementing Partners. Maintenance includes repairs and/or improvements to existing stormwater retrofits as needed.
TMDL Performance Measure that tracks the number of public facilities in the Forested Uplands that are retrofitted with BMPs to reduce runoff volumes and remove fine sediment particles and nutrients contained therein. Public facilities are administrative and/or recreational facilities such as parking lots, trailheads, and buildings located on lands owned by TMDL Non-urban Implementing Partners. Maintenance includes repairs and/or improvements to existing stormwater retrofits as needed.
TMDL Performance Measure that tracks the total acres of forestlands with compacted soil, disturbed vegetation, and/or impacted hydrology that have been restored, enhanced, or mitigated each year. Disturbed areas are forestlands, other than roads and SEZs, in which soil, hydrologic function, and/or vegetation has been degraded by development, operations undertaken, or natural disturbance. Examples of disturbed areas include areas defined as soft coverage by TRPA, as well as ski runs, staging areas, and landings.
TMDL Performance Measure that tracks the total acres of forestlands with compacted soil, disturbed vegetation, and/or impacted hydrology that have been restored, enhanced, or mitigated each year. Disturbed areas are forestlands, other than roads and SEZs, in which soil, hydrologic function, and/or vegetation has been degraded by development, operations undertaken, or natural disturbance. Examples of disturbed areas include areas defined as soft coverage by TRPA, as well as ski runs, staging areas, and landings.
Environmental Improvement Program
Data displayed currently includes improvements accomplished by TMDL Urban Implementing Partners. TMDL Management Agencies are working on update to display only accomplishments completed on non-urban roads.
TMDL Performance Measure that tracks the amount of forest roads Non Urban Implementing Partners have retrofitted or decommissioned to reduce stormwater runoff pollution impacts. Retrofitting roads includes: (1) implementing source control and/or other BMPs to minimize stormwater runoff volumes and associated sediment and nutrient loading to down gradient surface waters; and/or (2) roadway realignment to protect sensitive environment resources from pollutant loading impacts. Roads are decommissioned when they have been removed from the managed road system, are no longer available for use, and significant elements of the road that unnaturally reroute hillslope drainage or present slope stability and/or erosion and sediment delivery issues have been mitigated.
IMPORTANT: This TMDL PM is a subset of and reported through the EIP PM Miles of Roads Decommissioned or Retrofitted. Operations and maintenance activities of previously retrofitted or decommissioned roads should not be reported under this PM; such activities are reported under the Forest Roads Inspected and Maintained PM.
Environmental Improvement Program
The Miles of Roads Created TMDL PM tracks the miles of permanent paved and unpaved roads, that are created in the Forested Uplands each year. Roads are considered created when they are added to the permanent road network of the road owner, whether for storage or for regular use. The Miles of Roads Created TMDL PM complements the Miles of Roads Treated TMDL PM by providing a full picture of the change in the total miles of forest roads in the Tahoe Basin on an annual basis.
Environmental Improvement Program