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Mormon Pasture Mountain Wildlife Habitat Improvement Project Manti-La Sal National Forest Page 14 January 16, 2015 WETLANDS, FLOODPLAINS, MUNICIPAL SUPPLY WATERSHEDS, IMPAIRED WATERS There are no wetlands in the project area. There are wetlands in the project area, but no adverse effects are anticipated. Document rationale, may include involvement in project design, walk-through of project area, BMP’s, SWCP’s, buffer zones, etc. Please see enclosed map; there are a few wetlands where the Rx boundary needs to be moved away from the wetland (i.e., move to the west). Do not burn to the edge of the wetland. Buffer 200-300 feet. There are wetlands in the project area, adverse effects are possible. Document additional field investigation to confirm locations and proximity of wetlands to proposed activities. Document needed modification to proposed activities, additional design criteria, mitigation measures, or other measures. There are no floodplains or flood-prone areas in the project area. There are floodplains or flood-prone areas in the project area, but no adverse effects are anticipated. There are floodplains or flood-prone areas in the project area, adverse effects are possible. Document additional field investigation to confirm locations and proximity of floodplains or flood-prone areas to proposed activities. Document needed modification to proposed activities, additional design criteria, mitigation measures, or other measures. Municipal supply watersheds (FSM 2542) include surface supply watersheds, sole source aquifers, and the protection zones around well and springs. There are no municipal supply watersheds or drinking water source areas in the project area. There are municipal supply watersheds or drinking water source areas in the project area, but no adverse effects are anticipated. Document rationale, may include involvement in project design, walk-through of project area, BMP’s, SWCP’s, buffer zones, etc. There are municipal supply watersheds or drinking water source areas in the project area, adverse effects are possible. Document additional field investigation to confirm locations and proximity of municipal supply watersheds or drinking water source areas to proposed activities. Document needed modification to proposed activities, additional design criteria, mitigation measures, or other measures. Is it likely that the degree of potential effect of the proposed action on wetlands, floodplains, or municipal supply watersheds constitutes an extraordinary circumstance. NO YES Is the project area adjacent to or tributary to a water quality limited stream segment or lake (from current 303(d) list or a TMDL)? NO YES – complete Clean Water Act Worksheet. List any key public contacts that need to be made on page 1 of this document. Attach any additional information pertaining to this proposal. This may include required BMP’s/SWCP’s/mitigation, Clean Water Act Worksheet, maps, etc. The proposal complies with Executive Order 11988 (Floodplain Management). The proposal complies with Executive Order 11990 (Protection of Wetlands). The proposal complies with the Clean Water Act. The proposal complies with the Safe Drinking Water Act. The proposal complies with Forest Plan management direction. Hydrologist: Jan M. Curtis-Tollestrup Date: October 7, 2015

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Page 1: WETLANDS, FLOODPLAINS, MUNICIPAL SUPPLY WATERSHEDS ...a123.g.akamai.net/7/123/11558/abc123/forestservic... · WETLANDS, FLOODPLAINS, MUNICIPAL SUPPLY WATERSHEDS, IMPAIRED WATERS

Mormon Pasture Mountain Wildlife Habitat Improvement Project

Manti-La Sal National Forest Page 14 January 16, 2015

WETLANDS, FLOODPLAINS, MUNICIPAL SUPPLY WATERSHEDS, IMPAIRED WATERS

There are no wetlands in the project area. There are wetlands in the project area, but no adverse effects are anticipated.

Document rationale, may include involvement in project design, walk-through of project area, BMP’s, SWCP’s, buffer zones, etc. Please see enclosed map; there are a few wetlands where the Rx boundary needs to be moved away from the wetland (i.e., move to the west). Do not burn to the edge of the wetland. Buffer 200-300 feet.

There are wetlands in the project area, adverse effects are possible.

Document additional field investigation to confirm locations and proximity of wetlands to proposed activities. Document needed modification to proposed activities, additional design criteria, mitigation measures, or other measures.

There are no floodplains or flood-prone areas in the project area. There are floodplains or flood-prone areas in the project area, but no adverse effects are anticipated.

There are floodplains or flood-prone areas in the project area, adverse effects are possible.

Document additional field investigation to confirm locations and proximity of floodplains or flood-prone areas to proposed activities. Document needed modification to proposed activities, additional design criteria, mitigation measures, or other measures. Municipal supply watersheds (FSM 2542) include surface supply watersheds, sole source aquifers, and the protection zones

around well and springs. There are no municipal supply watersheds or drinking water source areas in the project area. There are municipal supply watersheds or drinking water source areas in the project area, but no adverse effects are

anticipated. Document rationale, may include involvement in project design, walk-through of project area, BMP’s, SWCP’s, buffer zones, etc.

There are municipal supply watersheds or drinking water source areas in the project area, adverse effects are possible. Document additional field investigation to confirm locations and proximity of municipal supply watersheds or drinking water source areas to proposed activities. Document needed modification to proposed activities, additional design criteria, mitigation measures, or other measures. Is it likely that the degree of potential effect of the proposed action on wetlands, floodplains, or municipal supply watersheds constitutes an extraordinary circumstance.

NO YES Is the project area adjacent to or tributary to a water quality limited stream segment or lake (from current 303(d) list or a TMDL)?

NO YES – complete Clean Water Act Worksheet. List any key public contacts that need to be made on page 1 of this document. Attach any additional information pertaining to this proposal. This may include required BMP’s/SWCP’s/mitigation, Clean Water Act Worksheet, maps, etc.

The proposal complies with Executive Order 11988 (Floodplain Management). The proposal complies with Executive Order 11990 (Protection of Wetlands). The proposal complies with the Clean Water Act. The proposal complies with the Safe Drinking Water Act.

The proposal complies with Forest Plan management direction.

Hydrologist: Jan M. Curtis-Tollestrup

Date: October 7, 2015

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Mormon Pasture Mountain Wildlife Habitat Improvement Project

Manti-La Sal National Forest Page 15 January 16, 2015

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Mormon Pasture Mountain Wildlife Habitat Improvement Project

Manti-La Sal National Forest Page 16 January 16, 2015

☒ The BMP’s and SWCP’s included in this project for soil resource management meet the responsibilities of the Forest Service for implementing the nonpoint source water quality provisions of the federal Clean Water Act, the Utah Water Quality Act, and the Utah Nonpoint Source Pollution Management Plan and addendums. The authorities, roles and responsibilities of the Forest Service to meet the above mentioned acts and plans are contained in the Utah Nonpoint Source Memoradum of Understand, Implementing the NonPoint Source Water Quality Program in the State of Utah. National Core BMP’s and R1/R4 SWCP’s that are applicable are listed below. The National Core BMP’s and R1/R4 SWCP’s that are being addressed are shown with a reference table for each specific design criteria and mitigation measure.

1. To ensure long-term soil productivity, any areas were equipment is used that results in soil compaction, will have soil compaction conditions reduced or eliminated and covered with masticated/slash vegetation once vegetative management operations are completed. If seeding is necessary, the use of native species is preferred. Related National Core BMP’s Related R1/R4 SWCP’s Veg 1 Vegetation Management Planning Veg 2 Erosion Prevention and Control Veg 8 Mechanical Site Treatment

13.04 Revegetation of Surface Disturbed Areas 13.06 Soil Moisture Limitations for Tractor Operation 14.13 Special Erosion Prevention Measures on Areas Disturbed by Harvest Activities 14.14 Revegetation of Areas Disturbed by Harvest Activities

2. To reduce the risk of detrimentally burned soils and increased erosion potential, prescribed fire should be applied when soil

conditions provide for minimum burn severity while meeting burn objectives. Related National Core BMP’s Related R1/R4 SWCP’s Fire 1 Wildland Fire Management Planning Fire 2 Use of Prescribed Fire

18.02 Formulation of Fire Prescriptions 18.03 Protection of Soil and Water from Prescribed Burning Effects

3. To reduce the extent of bare soil and erosional losses following fire, burning treatments will be planned to have less than

5% high burn severity and less than 60% total ground surface area burned on north, east, and west slopes greater than 55%. Related National Core BMP’s Related R1/R4 SWCP’s Fire 2 Use of Prescribed Fire 18.02 Formulation of Fire Prescriptions

18.03 Protection of Soil and Water from Prescribed Burning Effects

4. Due to the susceptibility of soil loss following fire, prescribed fire use will be limited to low severity burns and less than 60%

total ground surface areas burned on south facing slopes greater than 55%. Low burn severity with unburned patches will be designed for these areas. Related National Core BMP’s Related R1/R4 SWCP’s Fire 2 Use of Prescribed Fire 18.02 Formulation of Fire Prescriptions

18.03 Protection of Soil and Water from Prescribed Burning Effects

5. Monitor detrimental soil disturbance (compaction, hydrophobicity, soil displacement, puddling) during treatment operations

to determine when and how much mitigation must be applied to protect or rehabilitate soil resources. Related National Core BMP’s Related R1/R4 SWCP’s Veg 8 Mechanical Site Treatment 11.02 Soil and Water Resource Monitoring and

Evaluation

6. Monitor soil conditions during fire recovery in the prescribed fire activity areas. If ground cover, soil loss, or other soil

indicators show recovery is not meeting plan direction, implement soil improvement practices to protect soil resources. This may include seeding, mulching or erosion control structures at specific locations within the project area. Related National Core BMP’s Related R1/R4 SWCP’s Fire 2 Use of Prescribed Fire 11.02 Soil and Water Resource Monitoring and

Evaluation

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Mormon Pasture Mountain Wildlife Habitat Improvement Project

Manti-La Sal National Forest Page 17 January 16, 2015

18.02 Formulation of Fire Prescriptions 18.03 Protection of Soil and Water from Prescribed Burning Effects

7. Soils with depths of less than 10 inches will be avoided for any ground based equipment use.

Related National Core BMP’s Related R1/R4 SWCP’s Veg 1 Vegetation Management Planning 14.02 Timber Harvest Unit Design

14.07 Determining Tractor Loggable Ground

8. Forest Plan Direction for Logging or wood product removal requirements to assure controlling soil erosion within acceptable levels: On slopes less than 20 percent allow conventional logging systems and equipment where soil surveys or soil data are unavailable. On slopes less than 40 percent allow conventional logging systems and equipment where soil surveys or soil data are available to design erosion mitigation needs. Utilize high floatation equipment on slopes up to 60 percent or cable or aerial systems on any slope. Related National Core BMP’s Related R1/R4 SWCP’s Veg 8 Mechanical Site Treatment 13.02 Slope Limitations for Tractor Operation

14.02 Timber Harvest Unit Design 14.07 Determining Tractor Loggable Ground

9. Forest Plan Direction for Management Prescription Areas RPN Un-mapped Riparian Areas: Minimize significant soil

compaction and disturbance in riparian ecosystems. Allow use of heavy construction equipment during period when the soil is less susceptible to compaction or rutting. Treat disturbed sites resulting from resource development or use activities, to reduce sediment yields to the natural erosion rates in the shortest possible time. Related National Core BMP’s Related R1/R4 SWCP’s Veg 3 Aquatic Management Zones 13.03 Tractor Operation Excluded from Wetlands,

Bogs, and Wet Meadows 14.06 Meadow Protection During Timber Harvesting

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Mormon Pasture Mountain Wildlife Habitat Improvement Project

Soils Specialist Report

Soils – Sustaining Soil Quality and Productivity☒ The proposal complies with the 1986 Manti La Sal National Forest Land and Resource Management Plan for Soil Resource Management direction to minimize adverse, man-caused impacts to the soil resource including accelerated erosion, compaction, contamination, and displacement:

☒ Maintain soil erosion losses at or below soil loss tolerance values as defined by the Soil Conservation Service as modified by the Forest Service ☒ Add mulch, fertilizer, and other soil amendments as necessary to reduce soil erosion and increase vegetative growth. ☐ Design continuing mitigation or rest rotation practices and follow-up maintenance activities to insure that vegetative ground cover exceeds 80 percent of adjacent similar undisturbed sites. ☐ Use appropriate design guides for sediment controlling structures. ☐ Protect or conserve topsoil when conducting surface disturbing activities. ☐ Provide adequate drainage and revegetation on areas capable of supporting vegetation disturbed during construction or other surfaced disturbing activities to stabilize the area and control soil erosion. ☐ Stabilize and/or close and rehabilitate non-system roads where significant resource damage is occurring. ☐ Use soils and materials data for road and trail design. ☐ Control livestock and big-game grazing so plant cover is not reduced to less than the amount needed for soil and watershed protection.

☒ The proposal complies with the Region-4 Supplement 2500-2011-1, R4 FSM 2500 – Watershed and Air Management, Chapter 2550 – Soil Management. Please Select from the R4 Soil Quality Guidelines and/or other Soil Quality Standard(s):

☐R4 Soil Quality Guidelines for maintaining or improving soil properties that affect soil quality and hydrologic function, and watershed condition class. This is neither an inclusive nor a required list. Please select those appropriate to the project: • Detrimental Soil Disturbance Guideline (Soil Displacement, Compaction, Puddling):

☒ Existing detrimental soil disturbance are equal to or below 15 percent of the area, managementactivities should leave the area in a condition of 15 percent or less detrimental soil disturbance followingcompletion of the management activities and foreseeable future activities.☐ In an activity area where existing conditions of detrimental soil disturbance exceed 15 percent of thearea, management activities should include mitigation and restoration so that detrimental soil disturbancelevels are less than pre management activities and moved back toward 15 percent or less followingcompletion of the management activities.

• Effective Ground Cover Guideline:☒ The minimum effective ground cover, following the cessation of disturbance in an activity area, shouldbe sufficient to prevent detrimental erosion.

• Above-ground Organic Matter Guideline:☐ Litter – local guidelines for litter retention based on soil and vegetation types.☐ Coarse Woody Debris – minimum amount of large woody debris based on ecological type.

☒ The BMP’s and SWCP’s included in this project for soil resource management meet the responsibilities of the Forest Service for implementing the nonpoint source water quality provisions of the federal Clean Water Act, the Utah Water Quality Act, and the Utah Nonpoint Source Pollution Management Plan and addendums. The authorities, roles and responsibilities of the Forest Service to meet the above mentioned acts and plans are contained in the Utah Nonpoint Source Memoradum of Understand, Implementing the NonPoint Source Water Quality Program in the State of Utah.

National Core BMP’s and R1/R4 SWCP’s that are applicable are listed below. The National Core BMP’s and R1/R4 SWCP’s that are being addressed are shown with a reference table for each specific design criteria and mitigation measure.

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1. To ensure long-term soil productivity, any areas were equipment is used that results in soil compaction, will have soil compaction conditions reduced or eliminated and covered with masticated/slash vegetation once vegetative management operations are completed. If seeding is necessary, the use of native species is preferred.

Related National Core BMP’s Related R1/R4 SWCP’s

Veg 1 Vegetation Management Planning

Veg 2 Erosion Prevention and Control

Veg 8 Mechanical Site Treatment

13.04 Revegetation of Surface Disturbed Areas

13.06 Soil Moisture Limitations for Tractor Operation

14.13 Special Erosion Prevention Measures on Areas Disturbed by Harvest Activities 14.14 Revegetation of Areas Disturbed by Harvest Activities

2. To reduce the risk of detrimentally burned soils and increased erosion potential, prescribed fire should be applied when soil conditions provide for minimum burn severity while meeting burn objectives.

Related National Core BMP’s Related R1/R4 SWCP’s

Fire 1 Wildland Fire Management Planning

Fire 2 Use of Prescribed Fire

18.02 Formulation of Fire Prescriptions

18.03 Protection of Soil and Water from Prescribed Burning Effects

3. To reduce the extent of bare soil and erosional losses following fire, burning treatments will be planned to have less than 5% high burn severity and less than 60% total ground surface area burned on north, east, and west slopes greater than 55%.

Related National Core BMP’s Related R1/R4 SWCP’s

Fire 2 Use of Prescribed Fire 18.02 Formulation of Fire Prescriptions

18.03 Protection of Soil and Water from Prescribed Burning Effects

4. Due to the susceptibility of soil loss following fire, prescribed fire use will be limited to low severity burns and less than 60% total ground surface areas burned on south facing slopes greater than 55%. Low burn severity with unburned patches will be designed for these areas.

Related National Core BMP’s Related R1/R4 SWCP’s

Fire 2 Use of Prescribed Fire 18.02 Formulation of Fire Prescriptions

18.03 Protection of Soil and Water from Prescribed Burning Effects

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5. Monitor detrimental soil disturbance (compaction, hydrophobicity, soil displacement, puddling) during treatment operations to determine when and how much mitigation must be applied to protect or rehabilitate soil resources.

Related National Core BMP’s Related R1/R4 SWCP’s

Veg 8 Mechanical Site Treatment 11.02 Soil and Water Resource Monitoring and Evaluation

6. Monitor soil conditions during fire recovery in the prescribed fire activity areas. If ground cover, soil loss, or other soil indicators show recovery is not meeting plan direction, implement soil improvement practices to protect soil resources. This may include seeding, mulching or erosion control structures at specific locations within the project area.

Related National Core BMP’s Related R1/R4 SWCP’s

Fire 2 Use of Prescribed Fire 11.02 Soil and Water Resource Monitoring and Evaluation

18.02 Formulation of Fire Prescriptions

18.03 Protection of Soil and Water from Prescribed Burning Effects

7. Soils with depths of less than 10 inches will be avoided for any ground based equipment use. Related National Core BMP’s Related R1/R4 SWCP’s

Veg 1 Vegetation Management Planning 14.02 Timber Harvest Unit Design

14.07 Determining Tractor Loggable Ground

8. Forest Plan Direction for Logging or wood product removal requirements to assure controlling soil erosion within acceptable levels: On slopes less than 20 percent allow conventional logging systems and equipment where soil surveys or soil data are unavailable. On slopes less than 40 percent allow conventional logging systems and equipment where soil surveys or soil data are available to design erosion mitigation needs. Utilize high floatation equipment on slopes up to 60 percent or cable or aerial systems on any slope.

Related National Core BMP’s Related R1/R4 SWCP’s

Veg 8 Mechanical Site Treatment 13.02 Slope Limitations for Tractor Operation

14.02 Timber Harvest Unit Design

14.07 Determining Tractor Loggable Ground

9. Forest Plan Direction for Management Prescription Areas RPN Un-mapped Riparian Areas: Minimize significant soil compaction and disturbance in riparian ecosystems. Allow use of heavy construction equipment during period when

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the soil is less susceptible to compaction or rutting. Treat disturbed sites resulting from resource development or use activities, to reduce sediment yields to the natural erosion rates in the shortest possible time.

Related National Core BMP’s Related R1/R4 SWCP’s

Veg 3 Aquatic Management Zones 13.03 Tractor Operation Excluded from Wetlands, Bogs, and Wet Meadows

14.06 Meadow Protection During Timber Harvesting

Soil Scientist:

Date: