BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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4.5.1.2 CONSTRUCTION BOUNDARY FENCINGAlternative Names: Construction Footprint ManagementDESCRIPTIONConstruction boundary fencing is used temporarily on construction sites tomark the limits of clearing and grading and to define areas which must beprotected. Construction boundary fencing contains and minimizes disturbedareas, protects trees and vegetation, and prevents encroachment into SEZ orother sensitive areas. Construction boundary fencing is not property boundaryfencing, but marks the perimeter of the construction disturbance area.APPLICABILITY• Suitable for all construction sites where clearing and excavating can result insignificant soil disturbance.• Especially important in the presence of SEZ and steep sites.Advantages• Contains and minimizes the amount of land disturbed by constructionactivities.• Prevents damage to adjacent properties.• Protects vegetation and soil, which avoids or minimizes costs formitigation and/or restoration.BMP DESIGN APPROACHPollutant SourceControlHydrologic SourceControlStormwater TreatmentSCALE OF APPLICATIONAll SFR and MFR < 1acreMFR 1-5 Acre andCICU < 5 acresMFR and CICU > 5acres and all WQIPsTYPE OF APPLICATIONTemporaryPermanentDisadvantages• May create physical obstructions to construction activity.DESIGN CONSIDERATIONS• An on-site pre-construction meeting with inspectors and constructionpersonnel is necessary to clearly determine the boundaries of theconstruction area.• Generally confine construction project areas to within 12 feet of thefootprint of structures. However, additional area may be approved by thepermitting agency.• Ensure that construction boundary fencing clearly demarcates areas ofconstruction activity, construction traffic and parking, and stock and/orspoil piles.• Protect and mark trees and other vegetation that are not designated andapproved for removal. (Refer to Section 4.5.1.5, Vegetation Protection). Thismay include vegetation or tree pockets within the construction boundaryfencing.• Place construction boundary fencing to exclude and prevent disturbance inSEZs, backshores, and other sensitive areas.TRPA BMP HandbookChapter 4: BMP Toolkit2012 4.5.1.2-Construction Boundary FencingPage 1
• Make maximum use of natural barriers, such as rock outcrops.• Use the network of driveways and parking areas in the plans forconstruction traffic. Treat with gravel or stone mulch if currently unpaved.• Locate stock piles where they will not cause obstruction and can remain inplace until required.INSTALLATION• Ensure that construction boundary fencing is at least 48 inches high. Useplastic orange fencing or metal mesh and attach firmly to metal posts.• Do not nail, staple, wire, or wrap construction boundary fences around treesor vegetation.• Do not place or stockpile materials or drive vehicles in those areas protectedby the construction boundary fencing.• Remove the boundary fencing once all construction activity has beencompleted.INSPECTION AND MAINTENANCE• Inspect and maintain boundary fencing daily, especially during clearing andgrading operations.• On construction sites where construction boundary fencing consistentlyfails to be effective, install a more resilient fence (e.g. high gauge metalfencing), or as required by the permitting and inspection agency.• Maintaining a functional construction boundary fence requires theunderstanding and cooperation of all construction personnel and inspectors.• Construction boundary fencing may need extra maintenance due to snowloading compaction.Chapter 4: BMP ToolkitTRPA BMP Handbook4.5.1.2-Construction Boundary Fencing 2012Page 2
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PREFACEThe Tahoe Regional Planning
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TABLE OF CONTENTSPREFACE...........
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3.5.5 Stormwater Treatment ........
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6.3 Projects 1 to 5 Acres and all C
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8.10.5 Maintenance ................
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Table 8-4: Federal, State and Regio
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Figure 4.3-i: Vegetated Swale .....
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INTRODUCTIONPURPOSE AND USERS OF TH
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Lake Tahoe’s world renowned blue
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Urbanization in the Lake Tahoe wate
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50 percent of the light scattering
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Figure I-c: Impervious Cover versus
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Disconnected impervious areasdrain
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POLLUTANT EFFECT URBAN SOURCES ASSO
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BEST MANAGEMENT PRACTICESHistorical
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Table I-2: Differences in BMP Retro
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CHAPTER 1: URBAN HYDROLOGY1.1 PURPO
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Figure 1-a: Runoff ProcessesTRPA BM
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Although many urbanized areas face
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watersheds to make the necessary es
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Pollutant load estimates are typica
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differ from the following recommend
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Figure 1-b: Hydrologic Processes an
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1.3.3.2 NRCS BMP CALCULATION SPREAD
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1.3.3.3 RATIONAL METHODMODEL SUMMAR
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1.3.3.4 LOAD REDUCTION PLANNING TOO
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in HMS may be event-based or contin
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1.3.3.6 POLLUTANT LOAD REDUCTION MO
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AVAILABILITY AND SUPPORTING DOCUMEN
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TYPICAL LEVEL OF EFFORTHSPF and LSP
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few days to a week of time to revie
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USACE studies recommended use of th
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during the initial site visit, or c
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Figure 2-a: Soil Horizons• Depth
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Evidence of compacted and disturbed
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UNMAPPED ROCK OUTCROPS, STEEP SLOPE
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The primary pollutants of concern o
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On the map use an arrow to delineat
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2.2.3 ADDITIONAL DATA GATHERINGAfte
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and allowable uses. Baseline Land C
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topographic survey will be required
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Table 2-3: Basis of Capability Clas
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Keep your property lean, clean,and
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treatment. This will reduce the mai
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ponds, wetlands, lakes, manmade cha
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2.3.3.2 SOILS HYDROLOGIC REPORTThe
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CHAPTER 3: PERMANENT BMP PLANNINGAN
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STORMWATER TREATMENTRepresents BMPs
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Table 3-1: Waste Management and Mat
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D. STABILIZE STEEP DISTURBED SLOPES
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This infiltration trench collects s
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3.5 PROJECTS 1 TO 5 ACRES AND ALL C
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This Page Blank.TRPA BMP HandbookCH
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unnecessary turf areas and replace
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Table 3-5: Waste Management and Mat
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3.5.2.3 SOIL STABILIZATIONA. RESTOR
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Left: Dripline erosion below a deck
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Pervious concrete parking pad locat
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3.5.5 STORMWATER TREATMENT3.5.5.1 M
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3.6.1.1 JURISDICTIONThese projects
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to perform required inspection and
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3.8.2.4 SHARED ACCESS AND EASEMENTS
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3.8.2.8 STREAM ENVIRONMENT ZONES (S
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Sediment versus erosion:Suspended s
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CONTENTSCHAPTER 4: BMP TOOLKIT ....
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CHAPTER 4: BMP TOOLKIT4.1 HYDROLOGI
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4.1.1.1 PERVIOUS PAVEMENTAlternativ
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• Tree canopy overhead can decrea
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ate determined at the time of insta
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Figure 4.1-a: Pervious ConcreteTRPA
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4.1.1.2 INFILTRATION BASINAlternati
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groundwater, depths to restrictive
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Very few performance monitoring stu
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INSPECTION AND MAINTENANCE ACTIVITI
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4.1.1.3 INFILTRATION TRENCHAlternat
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• Consult the NRCS Tahoe Basin So
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• Alternative Method: Excavate th
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Figure 4.1-c: Infiltration TrenchTR
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Figure 4.1-e: Roof Dripline Planter
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4.1.1.4 SUBSURFACE INFILTRATION SYS
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percent void space compared to 40 p
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• Ensure the surrounding surface
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4.1.1.5 RAIN BARREL AND CISTERNAlte
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• Position the rain barrel or cis
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4.1.1.6 RAIN GARDENAlternative Name
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• To manage high flows, design a
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4.1.1.7 FILTER STRIPAlternative Nam
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• The top of the vegetated filter
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INSPECTION AND MAINTENANCE ACTIVITI
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Figure 4.1-i: Vegetated Filter Stri
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LIST OF FIGURESFigure 4.2-a: Slope
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Chapter 4: BMP ToolkitTRPA BMP Hand
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• Obtain and use a road abrasive
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• Mechanical broom sweepers may a
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EFFECTIVENESS CONSIDERATIONSA signi
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for dry basins or infiltration basi
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• For unpaved snow storage areas
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Figure 4.2-a: Slope Stabilization A
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Disadvantages• Not always success
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• Bind together long live branch
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Brush Layering and MattingBrush lay
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Advantages• Reduces the erosion p
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Table 4.2-1: Terracing Inspection a
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Disadvantages• Can be complicated
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• Revegetate the backfilled bench
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Figure 4.2-d: Timber Retaining Wall
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Advantages• Versatile and applica
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Table 4.2-3: Riprap Inspection and
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educe the concentration of runoff,
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Figure 4.2-g: Slope Bottom BenchFig
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• Contour Furrows - relatively de
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APPLICABILITYAll roads, driveways,
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Stormwater runoff from a paved park
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Figure 4.2-k: Grading for Sheet Flo
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INORGANIC MULCH:• Areas where org
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• Stockpile and use existing orga
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The surface under the raised decksh
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Figure 4.2-l: Rock Armor - Elevated
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Clustered boulders used for parking
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• Helps to protect wildlife.• H
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EFFECTIVENESS CONSIDERATIONSA prope
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Improper storage of hazardous mater
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• Try to use the entire product b
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facilities must be equipped with ap
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• Dispose of it properly• Be a
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Disadvantages• Additional resourc
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• All hay, cubed hay, straw, mulc
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• Sanitary sewer regulations gene
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APPLICABILITYAll vehicles, includin
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• Do not perform other vehicle or
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LIST OF FIGURESFigure 4.3-a: Curb B
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APPLICABILITY• Culverts are appli
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deterioration. The inspection crew
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APPLICABILITY• Curb and gutters a
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INSTALLATION CONSIDERATIONS• Inst
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Figure 4.3-b: Rolled CurbChapter 4:
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Advantages• Prevents the discharg
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Table 4.3-2: Storm Drain Inspection
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Advantages• Prevents scour that m
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Figure 4.3-c: Outlet ProtectionChap
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• The structure can be designed t
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INSTALLATION CONSIDERATIONS• Disc
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Advantages• Assists in the contro
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Figure 4.3-e: Slotted Channel Drain
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Advantages• May be less expensive
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Table 4.3-5: A/C Swale Inspection a
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• Prevents property damage, slope
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Figure 4.3-g: Subsurface DrainChapt
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abrasives applied during the winter
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Table 4.3-7: Rock Lined and Vegetat
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Figure 4.3-i: Vegetated SwaleChapte
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Check dams installed in water sprea
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• Design check dams perpendicular
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CONTENTS4.4 Stormwater Treatment ..
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4.4 STORMWATER TREATMENTThe primary
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4.4.1.1 WET BASINAlternative Names:
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• Surcharge storage above the wet
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Table 4.4-1: Wet Basin Inspection a
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Figure 4.4-a: Wet Basin (Concept Dr
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4.4.1.2 BIOSWALEAlternative Names:
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Page 368 and 369: Figure 4.4-b: Bioswale (Linear Basi
Page 370 and 371: 4.4.1.3 DRY BASINAlternative Names:
Page 372 and 373: • Drainage design standards for t
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Page 376 and 377: Figure 4.4-c: Detention BasinTRPA B
Page 378 and 379: 4.4.2 FLOW THROUGH TREATMENTFlow-th
Page 380 and 381: 4.4.2.1 DROP INLET INSERTAlternativ
Page 382 and 383: INSTALLATION CONSIDERATIONS• Refe
Page 384 and 385: 4.4.2.2 TRASH RACKAlternate Names:
Page 386 and 387: 4.4.2.3 BAFFLED VAULTAlternative Na
Page 388 and 389: • Ensure that site conditions all
Page 390 and 391: 4.4.2.4 HYDRODYNAMIC SEPARATORAlter
Page 392 and 393: • Most units are designed to be c
Page 394 and 395: 4.4.2.5 MEDIA FILTERAlternate Names
Page 396 and 397: Cartridge Filter• Cartridge filte
Page 398 and 399: • Vent the system as for undergro
Page 400 and 401: 4.4.2.6 SEDIMENT TRAPAlternative Na
Page 402 and 403: INSPECTION AND MAINTENANCE• Regul
Page 404 and 405: Figure 4.4-e: Sediment TrapTRPA BMP
Page 406 and 407: CONTENTS4.5 Temporary BMPs for Cons
Page 408 and 409: 4.5 TEMPORARY BMPS FOR CONSTRUCTION
Page 410 and 411: concrete washouts and stockpiles sh
Page 412 and 413: 4.5.1.1 CONSTRUCTION PLANNING AND S
Page 414 and 415: • Measures to minimize the potent
Page 418 and 419: Figure 4.5-a: Construction Boundary
Page 420 and 421: 4.5.1.3 DEWATERINGDESCRIPTIONDewate
Page 422 and 423: Figure 4.5-b: DewateringTRPA BMP Ha
Page 424 and 425: • Use this settled water to fill
Page 426 and 427: 4.5.1.4 CLEAN WATER DIVERSIONAltern
Page 428 and 429: • Avoid disturbing aquatic specie
Page 430 and 431: • Pipe slope drain: A rigid pipe,
Page 432 and 433: Stream Isolation Techniques:• Tur
Page 434 and 435: Figure 4.5-f: Water DiversionTRPA B
Page 436 and 437: 4.5.1.5 VEGETATION PROTECTIONAltern
Page 438 and 439: • Growing Space: Provide spacing
Page 440 and 441: Figure 4.5-g: Vegetation Protection
Page 442 and 443: 4.5.1.6 TEMPORARY SANITATION FACILI
Page 444 and 445: 4.5.1.7 DUST CONTROLAlternate Names
Page 446 and 447: • Blanket with geotextiles or veg
Page 448 and 449: 4.5.1.8 VEHICLE INGRESS EGRESS MANA
Page 450 and 451: • If possible, re-use swept or va
Page 452 and 453: 4.5.1.9 WINTERIZATIONDESCRIPTIONBet
Page 454 and 455: INSPECTION AND MAINTENANCEEnsure th
Page 456 and 457: 4.5.1.10 CONSTRUCTION STAGINGAltern
Page 458 and 459: 4.5.1.11 MATERIAL HANDLING STORAGE
Page 460 and 461: • Ensure that current Material Sa
Page 462 and 463: 4.5.1.12 TOPSOIL SALVAGEAlternative
Page 464 and 465: • If topsoil will not be used for
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4.5.1.13 CONCRETE/BENTONITE MANAGEM
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Figure 4.5-i: Concrete Washout Stat
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4.5.1.14 STOCKPILE MANAGEMENTAltern
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Figure 4.5-j: Stockpile ManagementT
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4.5.2 EROSION AND SEDIMENT CONTROLR
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4.5.2.1 SWEEPINGDESCRIPTIONDuring c
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4.5.2.2 DRAIN INLET PROTECTIONAlter
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inches. Take care to ensure that no
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Figure 4.5-k: Drain Inlet Protectio
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4.5.2.3 FIBER ROLLAlternative Names
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• Adjust spacing of fiber rolls a
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Figure 4.5-l: Fiber RollsTRPA BMP H
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4.5.2.4 SILT FENCEAlternative Names
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• Turn the fabric uphill at the e
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Figure 4.5-m: Silt FenceTRPA BMP Ha
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4.5.2.5 EROSION CONTROL BLANKET SYS
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structures mark the boundaries of t
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Figure 4.5-p: Anchoring Geotextiles
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4.5.2.6 HYDROMULCH, TACKIFIER, AND
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INSPECTION AND MAINTENANCE• Hydro
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5.2 SOILSoil is a complex living sy
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Tilling green wood chips intothe so
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areas such as SEZs and in shorezone
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Large boulders provide permanent ve
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To address this TRPA’s Regional P
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to apply ½ inch of water. Water yo
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Pesticides can be degraded by sunli
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5.3.2.5 FIRE DEFENSIBLE SPACEFire d
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etween them. For example, shrubs wi
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5.4 PROJECT SCALE REQUIREMENTSSoil
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5.4.1.5 PROJECT INSTALLATIONA. CONT
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percent vegetative cover, soil surf
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TRPA Revegetation Plan TemplateSoil
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(c) GRADING AND SLOPE SHAPINGDescri
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TRPA Revegetation Plan ExampleSoil
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• All machinery must be clean bef
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Common NameScientific NameScotchbro
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during dry weather. All debris, roo
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substantially different that the pe
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TRPA BMP HandbookCHAPTER 5: Soil an
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Fertilizer Management PlanProject N
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IV. MONITORINGSurface and groundwat
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I. PROJECT AND SITE DESCRIPTIONGold
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Table 5-1: Description of Revegetat
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SITE TYPE RECOMMENDED SPECIES LISTS
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SITE TYPE RECOMMENDED SPECIES LISTW
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CHAPTER 5: Soil and Vegetation Mana
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TRPA APPROVED PLANT SPECIES ATTRIBU
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TRPA APPROVED PLANT SPECIES ATTRIBU
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CHAPTER 5: Soil and Vegetation Mana
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• Section 6.2 describes methods f
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equirements. At a minimum, training
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Vactor equipment removes sediment a
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Industrial Properties, Marinas, and
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• Rinse the rock with hose water
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EXAMPLE INSPECTION AND MAINTENANCE
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MONITORING PLAN TEMPLATE1. TITLE PA
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MONITORING, INSPECTION, ANDMAINTENA
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Sample Site123 Main StreetSouth Lak
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3. MONITORINGIn 2011, South Lake Ta
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ATTACHMENT BWATER QUALITY DATA
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ATTACHMENT DINSPECTION AND MAINTENC
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• Discharge of stormwater from in
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PAVING SINGLE FAMILY RESIDENTIAL PR
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TRPA Shorezone permit (www.trpa.org
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CHAPTER 8: SHOREZONE PROTECTIVESTRU
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technical guidance on structural an
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Pope has developed a shorezone miti
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ADVANTAGES• Protect parcel develo
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Table 8-3: Categorical Classificati
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generate observable changes in the
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Table 8-5: The General Geomorphic C
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8.1.8.2 TOLERANCE DISTRICT AND BACK
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Figure 8-e: Option 2—Backshore De
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Scenic Resources and project compli
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8.2 BULKHEADS AND LAKE WALLS8.2.1 O
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oth the beach immediately fronting
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Like all BMPs, bulkheads and lake w
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For a bulkhead located such that th
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Figure 8-i: Typical Lake Wall (Grav
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Table 8-9: Advantages and Disadvant
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maintains its position under wave s
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8.3.4 INSTALLATIONAs with bulkheads
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Table 8-11: Advantages and Disadvan
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V t ≥ 5R c2(Equation 4.1)Where:Vt
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8.5 BEACH NOURISHMENT AND REPLENISH
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of not being able to protect the ba
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• The material must be washed to
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nourishment will be determined by m
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8.7 BREAKWATERS8.7.1 OVERVIEWBreakw
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The procedure for determining armor
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8.8 SHOREZONE VEGETATION8.8.1 OVERV
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vegetation. Protecting a tree from
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Overall, dredging can be either a p
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The Pneuma pump is a piece of dredg
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nature of the project and the poten
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8.10 TURBIDITY CURTAINS8.10.1 OVERV
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weights or connected firmly to sand
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Figure 8-o: Turbidity Curtain Desig
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Aquatic invasive species (AIS) also
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tanks into a sewage retention and/o
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• A common problem with recreatio
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8.12 BOAT RAMP CONSTRUCTION AND VEH
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amp at the change of grade. A V-gro
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Figure 8-p: Boat Ramp DesignTRPA BM
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Table 8-22: Overview of Geotechnica
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8.14 SHOREZONE PROTECTIVE STRUCTURE
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8.14.2 ADDITIONAL CONSIDERATIONS FO
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some designated boundary or sphere
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spawning grounds and juvenile nurse
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Marine Science, School of Geoscienc
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Osborne, R.H., et. Al. (1985). Sedi
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8.16 APPENDICES8.16.1 DESIGN CALCUL
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Figure 8-r defines the primary wave
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8.16.1.2 WAVE RUN-UP FORMULA FOR BA
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• Use Equation 16.10 to calculate
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Figure 8-u: Design Wave CasesTRPA B
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Figure 8-v: Wave Setup and Run-Up f
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Alternative methods of wave calcula
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GLOSSARYAccretionMay be either a na
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eaches have no berm, others have se
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DensityMass (in kg) per unit of vol
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Fire Defensible SpaceRefers to the
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Common terms related to land covera
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PermeabilityThe property of a bulk
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ScourRemoval of underwater material
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SlopeThe degree of inclination to t
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Technical Advisory Committee (TAC)C
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ACRONYMSACES - Automated Coastal En
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NPS - Nonpoint SourceNRCS - Natural
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BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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