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• Watershed not tributary to the Cache la Poudre where local life and safety or property <br />are at risk . <br />Generally, these treatment polygons are located where dense to moderately dense stands of <br />conifers were burned and where soil burn severity was mapped as high or moderate due to <br />consumption of most, if not all, of the litter /duff forest floor. Due to removal of ground cover <br />and heat impacts on the soil, these once stable hill - slopes are now highly susceptible to <br />erosion. Generally, the precipitation events of highest concern are high intensity summer <br />thundershowers. Erosion control materials that would meet treatment objectives include <br />certified weed free agricultural straw and /or other effective erosion control materials such as <br />wood shreds. The recommended application rate for straw mulch is 1 ton /acre. The <br />recommended application rate for wood shreds is 6 tonstacre. Based on recent monitoring of <br />aerial application of mulch on another local fire (Fourmile Fire in Boulder County), treatments <br />are likely to be effective in this geographic location. As shown in the Soil Scientist's Specialist <br />Report, ERMiT runs for typical treatment areas show significant reduction in probability of hill - <br />slope erosion if mulching treatments are applied. <br />A map of potential mulching zones is included at the end of the report. <br />Noxious Weed Detection and Treatment <br />Treatment Description: (to be implemented partially with Forest Service personnel and <br />partially with Larimer County crews through a Participating Agreement on NFS lands) <br />Conduct weed detection surveys. Prioritize areas where heavy fire suppression activity <br />occurred, such as bulldozer lines, helispots /heliports, spike camps, equipment cleaning <br />sites, and staging areas. Also, areas of moderate to high soil burn severity, particularly <br />those areas proximal to known infestations and heavy suppression activity. The entire <br />burn area should be monitored for possible introduction of invasive species inadvertently <br />brought in on fire suppression equipment and vehicles from outside Larimer County. <br />Despite the awareness and active efforts to prevent weed spread by introduction of seed <br />or vegetative propagules, the problem is often documented in areas following wildfire. <br />Monitoring needs to occur following the first precipitation event, and continue throughout <br />the subsequent growing season. <br />• Treat newly found infestations from detection surreys. Focus on three priority species: <br />leafy spurge (Euphorbia esula), diffuse knapweed (Centaurea diffusa), and spotted <br />knapweed (Centaurea macuiosa); and any new high priority species brought in from <br />outside of Larimer County. <br />CHANNEL TREATMENTS <br />Public Lands <br />No channel treatments are proposed on USFS lands. <br />Private Lands <br />Purpose <br />The purpose of channel treatments is to help convey runoff through the drainage system and <br />remove debris that may plug channels and culverts resulting in water being diverted and causing <br />damage outside of the stream channel itself. Implementation along the areas proximate to the <br />mainline County roads will be conducted by either County crews or contractors. On private lands, <br />the County will conduct public outreach, asking residents to remove debris and keep drainage <br />ways clear. <br />High Park Fire Emergency Stabilization Pian Page 20 <br />