Loading...
HomeMy WebLinkAbout20240038 Ver 1_USACE Permit_20240308DEPARTMENT OF THE ARMY U.S. ARMY CORPS OF ENGINEERS, WILMINGTON DISTRICT ASHEVILLE REGULATORY FIELD OFFICE 151 PATTON AVENUE, ROOM 208 ASHEVILLE NORTH CAROLINA 28801 March 7, 2024 Regulatory Program/Division Dirk Wilmoth VP/CFO, A-B Tech Asheville Buncombe Technical College 340 Victoria St Asheville, NC 28806 Via Email: dirkwilmoth@abtech.edu Dear Applicant: This letter is in response to the Pre -Construction Notification (PCN) you submitted to the Wilmington District, Asheville Regulatory Field Office on December 22, 2023, for a Department of the Army Nationwide permit (NWP) verification. This project has been assigned the file number SAW-2023-02505 and is known as AB Tech Stream Restoration Project. This file number should be referenced in all correspondence concerning this project. A review of the information provided indicates that the proposed work would include the impact of 1,409 linear feet of streams and 0.014 acre of wetland to conduct restoration activities. The project/review area is located on the campus of Asheville - Buncombe Technical College west of Facilities Way, at 89 Facilities Way, at Latitude 35.572441 and Longitude-82.561255; in Asheville, Buncombe County, North Carolina. We have determined that the proposed work is authorized by Nationwide Permit 27 pursuant to authorities under Section 404 of the Clean Water Act (33 U.S.C. § 1344). The proposed work must be accomplished in strict accordance with the general permit conditions, any regional conditions, the special conditions listed in this letter, the application materials, and the enclosed plans titled AB Tech - Haith Branch and Gulley Restoration, sheets 0.1 through 6.9, dated December 22, 2023. If the extent of the project area and/or nature of the authorized impacts to waters are modified, a revised PCN must be submitted to this office for written approval before work is initiated. Any violation of permit conditions or deviation from your submitted plans may subject the permittee to enforcement action. This verification is valid until March 14, 2026, unless prior to this date the subject NWP(s) is suspended, revoked, or is modified such that the activity no longer complies with the terms and conditions of this NWP. If you commence or are under contract to commence this activity before the date that the relevant NWP is modified or revoked, you will have 12 months from the date of the modification or revocation of the NWP to complete the activity under the present terms and conditions of this NWP. Project Specific Special Conditions: In order to avoid/minimize effects to federally endangered/threatened species, tree clearing activities must be conducted outside the Northern Long Eared Bat summer roosting season. All tree clearing activities shall commence between October 15th and April 1st. This NWP verification does not preclude the necessity to obtain any other Federal, State, or local permits, licenses, and/or certifications, which may be required. If you have any questions related to this verification or have issues accessing documents referenced in this letter, please contact Mitchell Anderson, Regulatory Specialist of the Asheville Regulatory Field Office at 828.271.7980 ext 4231, by mail at the above address, or by email at Mitchell. I.Anderson@USACE.Army.Mil. Please take a moment to complete our customer satisfaction survey located at https://regulatory.ops.usace.army.miI/customer-service-survey/. Sincerely, 0 1, Mitchell Anderson Regulatory Specialist Enclosures Cc (w/enclosures) Jessica Waller, Wildlands Engineering (via jwaller@wildlandseng.com) Compliance Certification Form File Number: SAW-2023-02505 County: Buncombe Permittee: Asheville Buncombe Technical College, Dirk Wilmoth Project Name: AB Tech Stream Restoration Project Date Verification Issued: 3/7/2024 Project Manager: Mitchell Anderson Upon completion of the activity authorized by this permit and any mitigation required by the permit, sign this certification and return it to the following address: US ARMY CORPS OF ENGINEERS Wilmington District Attn: Mitchell Anderson Asheville Regulatory Field Office 151 Patton Avenue, Room 208 Asheville, North Carolina 28801 or Mitchell.I.Anderson@USACE.Army.Mil Please note that your permitted activity is subject to a compliance inspection by a U. S. Army Corps of Engineers representative. Failure to comply with any terms or conditions of this authorization may result in the Corps suspending, modifying or revoking the authorization and/or issuing a Class I administrative penalty, or initiating other appropriate legal action. hereby certify that the work, and mitigation (if applicable), authorized by the above referenced permit has been completed in accordance with the terms and conditions of the said permit including any general or specific conditions. Date Authorized Work Started: Completed: Describe any deviations from permit (attach drawing(s) depicting the deviations): *Note: The description of any deviations on this form does not constitute approval by the Corps. Signature of Permittee Date :. Project Parcels Q Assessment Area ® Wetlands 0 EvD2 - Evard-Cowee complex, 15-30% slopes, moderately eroded 1 0 TaC - Tate loam basin, 8-15% slopes 0 UhE - Udorthents-Urban land complex, 2-50% slopes Stream - Perennial Stream - Intermittent Stream - Ephemeral Non -Project Streams Existing Culverts O Stream Classification Point (SCP#) O Wetland/Upland Data Point (DP#) [K. @ 0 o IRP3 D %Xk*� WILD LAND S ENGINEERING Wetland B � i acres x DPl SCP2 UTi Perennial 69 LF SCPi HaiM Branch Perennial 1669 LE Ilk Figure 4 Soil Map AB Tech - Haith Branch and Gulley Restoration French Broad River Basin 06010105 0 50 100 Feet I I t Buncombe County, NC lips — Project Parcels Limits of Disturbance (4.7 acres) . ® Existing Wetlands 0 Wetland Impact -Permanent Wetland Impact - Temporary Perennial Project Stream Ephemeral Project Stream Stream Impact - Permanent Stream Impact - Temporary Non -Project Streams si: sz: S1: Relocation S2: WILD LAND S ENGINEERING W2: S3: Bank St ' S2: Bank Stabilization Si: Relocation Welt 00,00,11.W1: Stream A MOM, Relocation S2: Bank Stabilization .1 S2: Bank Stabilization S1• Relocation a`�r�tQ` Si: Relocation Figure 5 Aquatic Resource Impact Map AB Tech- Haith Branch and Gulley Restoration French Broad River Basin 06010105 0 50 100 Feet I I I Buncombe County, NC AB Tech - Haith Branch and Gulley Restoration Buncombe County, NC Vicinity Map Not to Scale PERMITTING SET BEFORE YOU DIG! CALL NE-CALLCEN E ISSUED DECEMBER 22 2023 N.C. ONE -CALL CENTER � IT'S THE LAW! Sheet Index Title Sheet 0.1 Project Overview 0.2 Notes and Symbols 0.3 Typical Sections 0.4 Haith Gully - Plan & Profile Sheets 1.0-1.3 Haith Branch - Plan & Profile Sheets 2.0-2.6 Planting Tables 3.1 Planting Sheets 4.0-4.4 Erosion and Sediment Control Sheets 5.0-5.5 Details 6.1-6.9 Project Directory Engineering: Wildlands Engineering, Inc License No. F-0831 167-B Haywood Rd Asheville, NC 28806 Julie Bernstorf, PE, Project Engineer 828-774-5547 Surveying: Wildlands Engineering Lidar Owner: AB Tech (Landowner) RiverLink (Project Owner) Renee Fortner o 0 L��LOR� 0 ® 0 0 0 0 0 , 7-1 _ / I , � I I _ SS S -� � ,ASS •_ SS O� _ COp� \-O �LOD�;LOD— LOD �— LOD - LQD Sf\ SS. MAINTENANCE BLDG man 00 G9 0 MAINTENANCE BLDG LAYDOWN MAINTENANCE AREA BLDG FACILITIES WAY u I N O oAao General Stream, Wetland and Adjacent Construction General Sequencing Protocol 1. Prior to construction within a reach, the Engineer will walk the site with Contractor and flag transplant vegetation material if necessary. Transplant material shall be handled to maximize potential success of reestablishment. Contractor shall review a refined sequence of work with Engineer for reach and shall obtain approval by Engineer. 2. In general, adjacent floodplain and wetland grading should be completed within the work area before stream work within the work area is started. 3. Work shall generally occur from upstream to downstream, taking care not to have active stream construction discharging into completed stream construction reaches. 4. Contractor shall disturb only as much channel bank as can be stabilized with temporary seeding, mulch, and erosion control matting by the end of each work day. 5. All in -stream work should be completed in the dry except work on Jones Creek where a stream diversion may be utilized. Pump around system or diversion shall be installed and functional prior to stream disturbance and execution of tie-ins. The Contractor shall operate and maintain the pump around or stream diversion system continuously until the disturbed in -stream area is stabilized. Pump around and diversion locations have been shown on the erosion control plan sheets, but may be shifted to accommodate the flow of construction with Engineer approval. 6. In -stream work should not be attempted on active streams during high flow events. 7. Where feasible, more than one offline section may be constructed concurrently. Offline sections shall be tied online sequentially from downstream to upstream. Refer to pump around system and stream diversion notes for other tie-in requirements. 8. Prepare floodplain for seeding by applying stockpiled topsoil to any areas of floodplain that have been cut below the topsoil horizon between bankfull (top of bank) and the top of terrace or grading limits, ripping, and raking/smoothing and following other plan and specification instructions. Seed with specified temporary and permanent seed mix and mulch. Any areas within the conservation easement that have not been graded with topsoil shall be treated according to the planting plan. 9. Backfill from upstream to downstream when possible; never backfill existing channels out of sequence or while they contain active flow. All non-native, invasive species shall be treated and/or removed from the old channel prior to backfilling. Backfill abandoned channel sections with stockpiled soil. Seed and mulch any backfill sections before proceeding to next phase. All backfilling must be completed as indicated in the plans or as directed by the Designer. Critical backfill areas should have material placed in 12 inch lifts and compacted with available machinery. Always remove invasive vegetation from channel area before backfilling. 10. Perform any necessary clearing and grubbing in phases as work progresses. Note that clearing and grubbing should only proceed a distance ahead of in -stream work that can be stabilized by the end of the workday. In cases where clearing and grubbing may result in erosion and sedimentation to the stream channel, a pump around or stream diversion system is required to be in place until all cleared and grubbed areas are stabilized. Remove or restabilize all fine material that may be washed downstream prior to returning flow to channels. Bank vegetation and vegetation immediately adjacent to live channels shall be left undisturbed as long as possible. 11. As work progresses, remove and stockpile topsoil, approximately the top three (3) inches of soil, from the active grading area. Stockpiled topsoil shall be kept separate for onsite replacement prior to floodplain seeding. No topsoil and/or cut shall be stored outside the limits of disturbance. 12. All haul roads and active work areas shall be monitored for sediment loss daily. In the event of anticipated sediment loss, divert water off haul roads into grassed strips, install silt fence or other acceptable sediment and erosion control practices to reduce velocities and trap sediment. In area where temporary diversions or barriers are necessary when roads are not in use, wattles may be used. Channel and Structure Construction 1. Construct stream reaches according to the typical sections and profiles in the planset or as directed by the Designer. 2. Transfer coarse material from abandoned channel riffles to new channel riffles. Various types of constructed riffles are specified on the plans. Contractor shall build the specific types of constructed riffles and cascades at locations shown on the Plans. Changes in constructed riffle type must be approved by the Designer. 3. Install structures and in -bank bioengineering after channel grading is completed. 4. Apply seed (with appropriate seed mix), soil amendments as directed by the Engineer, and straw mulch to areas where the coir fiber matting is to be installed. Install coir fiber matting. 5. Seed and/or sod, mat, and mulch floodplain areas according to plans and details. 6. Once disturbed areas and exposed streambank are stabilized, remove pump -around system, if used, and progress to the next phase. 7. Plant live stakes (dormant season) and herbaceous plugs (growing season) on stream banks according to planting details and specifications. Plant bare roots (dormant season) in the floodplain according to the planting plans. Existing Features - -TB - - Parcel Boundaries Existing Top of Bank Existing Thalweg - - - - - - - - - - - - - - - - - - Existing Major Contour ------------------ Existing Minor Contour 0 Existing Wetlands Existing Sewer Pipe Existing Pipe Existing Tree Existing MSD Road Proposed Features NUMBERS 011111111112 AMINES 0 Proposed Rock Drop See Detail 3, Sheet 6.2 Proposed Log Sill See Detail 4, Sheet 6.2 Proposed Cascading Riffle See Detail 3, Sheet 6.1 Proposed Constructed Riffle See Detail 1, Sheet 6.1 Proposed Chunky Riffle See Detail 4, Sheet 6.1 Proposed Woody Riffle See Detail 2, Sheet 6.2 Proposed Rock Toe Protection See Detail 2, Sheet 6.3 Proposed Brush Toe See Detail 3, Sheet 6.3 Proposed Features Erosion Control Features Proposed Tree Save See Detail 1, Sheet 6.3 Proposed Stockpile See Detail 3, Sheet 6.6 ® Proposed Remove Tree Proposed Haul Road 10+00 See Detail 2, Sheet 6.5 - - Proposed Stream Alignment - - - Proposed Bankfull Proposed Safety Fence SAF SAF SAF See Detail 2, Sheet 6.7 o Proposed Major Contour Proposed Silt Fence Proposed Minor Contour [X] [X] [X] See Detail 2, Sheet 6.6 Proposed Temporary Stream Crossing - �� Timber Mat -See Detail 1, Sheet 6.7 I Proposed Construction Entrance See Detail 4, Sheet 6.7 z O U O U M E 0 o o 4�q 0 e e k0 p �G o' ' FRS—OOI—OOI—OOI— col —CIO] —CIO] OI— _`�� `ttOl — OOl aol oRo Q� ��� 0' 20' 40' II w $ u r 4 n w (HORIZONTAL) a w 33 S.'Z . v Z � � N N a= �w �Q�a 2030 100 7 � AF �V 007� RF LL q Oy O24+ j { 50 l - A 20�g - -IE3';AF ti `o zoso -� _ _ 1. o �o LOD- �LOD�L 2pF �� 2025 ' n G- 3pd� r 0 Od S O .LC��)-11— LOD� PFLOD-��F ® S F A Oj O - p CLOD } y !p . j 20 r� 2 �0�2015 �� 201 C� �SAF T 5 r i; S �-,Z�AF 2 eo Ol—OOl-001--pOl=COI--001--OOI—�OOI-- ;' r�h� O i ��p1S F p4-4 (L^UI LOD—LOD—LOD—LCD—LOG—LOD—COD LOD—LOD �o SHEET. 1.1 100 j "I / oo/ � z 10571-, 00_ r ,ram, _ 1P -I- \ \106 � � 2010 SAS OOI _ - V Qo r r 00 i I � j 19g5 r _ sw ss > tl 1995 I ASS Q ,0� �qil 1995 � / pp"�yfr� ti , L D LOD p01 TF Ste" c f�j F 000- ) - _ `-200- - - 2000_ 5 i _2010_vo i /DOS - VOIDe r of /�00 0.�°.acb 2050 2045 2040 2035 2030 2025 2020 2015 2. PROFILE VIEW ELEV = 2022.83 0 u� xCd W 2050 2045 2040 2035 2030 2025 2020 2015 5 1 '9 azw€ 6=acb 2035 2030 2025 2020 2015 2010 2005 3- PLAN VIEW PROFILE VIEW 2035 2030 2025 2020 2015 2010 2005 0 0 u� xCd W 2025 2020 2015 2010 2005 2000 1995 1990 PROPOSED BAN7KFDULL�p AST= ' : • • 1 • 1STA -- ----- -- 5+80 6+00 6+50 7+00 PROFILE VIEW 2025 2020 7+62 = 1993.21 2015 2010 2005 2000 1995 ENDGULLEY 1990 RESTORATION 7+50 7+70 STA.7+62 GULLEY GRADING SUMMARY: CUT: 535 YD^3 FILL: 774 YD^3 NET CUT/FILL: 239 YD^3 OF FILL z 0 u� xcd W 0' 60' 120' 180' (HORIZONTAL) 2 t M 0, u �k D Gi 0 r � �4 Oj:h • .Ct '�l y � =� R "0' 'SHEET 2.6 / 1 A tp / / dog CD N ------------- �?'s - - ------------ _ ._� __ ---------------- --- ----- _ -" - -- --' -- .......... - .. _ ;,_ - - ---- -" -- -- ---- ---- _ ,_ -' `-- ` _ _2045 . ----- " - = . , - ---- - -'-----, - ------ ---- = - --�----- - ---- --- -_ -� PLAN VIEW —AREA --------- 1 � ., � - 00 O M a 0+0 `ti O n cy Ol N 01 ...I c-I Ol .'H Ilf O V V O m N N c-I N O N Ol m ^ 0101 �+ .-H V1 N N � _. , M + lD M 00 + + N + N + M V M + .4 N M + '-I + .H + O + M VI M N M + O m M I+ M I j O + Ol N N + n N N N 00 Ij CO 00 eM-I + 00 VO I p N I O I O a ry ry II O Q ry I O I O 11 O Q N Q N Q N I O II Q ry O I O N ry I ry Q II O I O I O Q N Q N N ry II O Q ry Q Q Q �W PROPOSE BANKFULL START RESTORATION AREA 1 PROPOSED] GRADE UPSTREAM OF HEADCUT STA:4+78 2035 _ -5.5% -3.5% 2030 EXISTING 2025 GROUND 4+70 5+00 STA = 4+80 STA = 4+93 STA = 5+13 ELEV = 2032.11 ELEV = 2031.46 ELEV = 2030.41 STA = 4+83 STA = 4+95 STA = 5+18 ELEV = 2032.11 ELEV = 2031.45 ELEV = 2030.40 2045 2040 2035 2030 2025 0+00 XSC-1 STA.5+14 2045 2045 2040 2040 2035 2035 2030 2030 2025 2025 0+40 0+00 END RESTORATION AREA 1 STA:5+85 n_30 25 5+50 75+25STA STA = 5+80 STA = 5+40 STA = 5+59ELEV = 2027.98 ELEV = 2029.87 ELEV = 2029.44 ELEV = 2028.18 = 5+36 STA = 5+53 STA = 5+72 ELEV = 2030.17 ELEV = 2029.88 ELEV = 2029.44 ELEV = 2028.15 PROFILE — AREA 1 2040 2045 2040 2035 2035 2030 2030 2025 2025 2020 0+40 0+10 XSC-2 XSC-3 STA.5+22 STA.5+57 SECTION VIEWS 0' 10, 20' 30' (HORIZONTAL) CUT: 76 YD^3 FILL: 25 YD^3 NET CUT/FILL: 51 YD^3 OF CUT 2040 2035 2030 PROPOSED GRADE 2025 ----- EXISTING GROUND 2020 0+50 0+10 XSC-4 0+50 STA.5+65 2040 2040 2035 2035 2030 2030 2025 2025 2020 2020 r O ...q I 004 001 � o ADD RIFFLE MATERIAL TO STABILIZE KNICK POINT AT APPROXIMATELY STATION 6+30 TO 6+45 / ---- QO N O II a Q N � II h II � II H II N W W J W J W W W RESTORATION AREA 2 STA:6+89 F 2030 2025 2020 6+80 STA = ELEV = 20, 2035 2035 2030 2030 2025 2025 2020 2020 2015 2015 0+40 0+00 T. 70 7+00 GROUND STA = 7+16 ELEV = 2023.38 _STA = 6+97 ELEV = 2023.68 PLAN VIEW - AREA 2 v M n VI I, O r O n rl O ^ n O + N N l0 m m y N Q N N II N O II O W J W W J W W W END RESTORATION AREA 2 STA:7+66 2030 2025 .9% 2020 7+50 7+70 STA = 7+22 ELEV = 2023.37 STA = 7+56 ELEV = 2021.22 STA = 7+35 STA = 7+40 STA = 7+52 ELEV = 2022.59 ELEV = 2022.58 ELEV = 2021.23 PROFILE - AREA 2 2035 2030 2025 2020 2015 XSC-2 0+40 STA.7+18 SECTION VIEWS 2035 2030 2025 2020 2015 2035 2030 2025 2020 2015 0+00 0' 10' 20' 30' (HORIZONTAL) -- ; --i— — " �94 qB �, ' ------ I CUT: 30 YD^3 FILL: 27 YD^3 NET CUT/FILL: 3 YD^3 OF CUT - O -- 41 n� O cn Q) 7 o U �JL z IIIO��II U x u Q) H PROPOSED GRADE I o EXISTING GROUND ad N : It 0 fcd M i-I W cd xW C1� 2025 2020 2015 2010 2005 0+00 XSC-1 STA. 9+59 PLAN VIEW - AREA 3 a T O aN II H N V .�-I II Ol V�1 Mc O n Vmf O10 N Q O N START RESTORATION AREA 3 > STA:9+20 W W V~ N V~ N N N F N v II w w EXISTING W GROUND w PROPOSED w 10' 10' 20' 30' (HORIZONTAL) O m �m + m + O .�-I + .M-I O + O 0000 00 00 u J I I N w w u> � CUT: 76 YD^3 w FILL:33 YD^3 NET CUT/FILL: 43 YD^3 OF CUT 2020 BANKFULL I i I i i 1 2020 END RESTORATION ARE 2015 2010 PROPOSED 2005 STA:10+30 - 015 - 2010 GRADE - J - STA =9+74 r 2005 STA I I ELEV = 2013.11 9+50 I 10+tSTA � 10+35 J L JI ELEV = 2012.01 STA = 9+25 STA - 9+30 STA = 9+71STA = 10+18 ELEV =2014.11 ELEV= 2014.11 ELEV = 2012.02 STA = 0.31 = 10+01 STA = 10+14 ELEV = 2008.99 ELEV = 2010.31 ELEV = 2010.30 ELEV = 2009.00 PROFILE - AREA 3 2025 LVL7 2020 2020 2015 2015 2010 2010 2005 2005 �a�l����ffffffffffffffffffff��nffffff����fff�i�a�r��-'• a ffffffffff�ffffff�ffffffffffffff�i�fffffffffffffffff�fff�� ������������ LVLZI ....�.. 2020 2015 2015 2010 2010 2005 ?nns 2000 zuzu 2015 2015 2010 2010 2005 2005 2000 2000 0+50 0+60 0+00 XSC-2 0+50 0+60 0+00 XSC-3 0+50 0+00 STA.9+73 STA.10+04 SECTION VIEWS PROPOSED GRADE EXISTING GROUND z 0 R e tawz�z a Z Q F a � w 55� I S� qF ti�p`S � z I z �ti 0� 404`�O 2020 2015 2010 2005 2000 XSC-4 0+50 STA.10+17 O •.j n� O UO Q) I E - o—0Ol-0Ol-0Ol-00l 001—OOI—OOl OOI—OO1-001—OOl_-_ OOl _ ----------- START _ - - _ IN -STREAM WORK AREA 4,STA .12+06 ��__ 0¢1-- "pOl - '-,'� --- APPLYUPPERHAITHBRANCHTYPICALSUNTIL _- _ _- OOfi OI—�CfOI—OOI—F}p 01:4©jT STA. 15+33 (PROPOSED CONFLUENCE), SHT 0.4 _ - __ '""------- XS p' 3tlS - " ---'" ----- -- _2010-'_.'\ - XSC-2 Z010' o a_= - ' "" C o - ----'--- = - - _ - - XSC 3 , -- ' -= _ i _------" i 4 + O �C _ Q' 0 --- '-- a- o, - 20 XSC-1 ' HAITH BRANCH 05 - TB v� -_ 2+ -- - -- ---- _ -- - - - ��� 20 0 6 - _ +30 `\ � , -�f = 2004 ram, 2+U0 v _ - - _ _ v, _ SO- 20 3 = _ w.� 2005 +_ 11�40. 1x90 11+30 •' 11+60 -- 1 ' zp03 11+70 _ _'--i--�-,- TB�` o `�-----' -- - - z004 i - _ �--- zoo - -- zoos 7 - --- -.-. _ zoos \ ----` _ :_ -'' _; ' - o , _-2p., moo ssMy�VS ASS sss5,' ssss sss5-,— _\ s ssJ ss�s QSs��=lssTss�SSl-bt�SS—'gS oSS`r—ss "77,1 j � 2 = — --- PLAN VIEW - AREA 4A 2015 2010 2005 2000 1995 0+00 START RESTORATION AREA STA:12+06 XSC-1 STA.11+46 0 00 00 m M N c-I T + W + N N N+o 'oro� + N N N c + II N I I N I I N II F II F u F H F W W 2005 2000 1995 1990 1985 12+00 STA = ELEV = 21 2015 2015 2010 2010 2005 2005 2000 2000 1995 1995 0+25 0+10 d N N N + O + Oj '-I O M IAA m m 1>1 m w EXISTING, W W GROUND \ f I BANKFPROPOULLD STA =12+33 ELEV = 2000.81 STA =12+57 STA = 12+92 STA = 12+29 ELEV = 2000.18 ELEV = 1999.27 STA =13+27 ELEV = 2000,81 PROPOSED ELEV = 1997 STA = 12+49 STA = 12+78 GRADE ELEV = 2000.18 ELEV = 1999.27 STA =13+17 ELEV = 1997.97 STA = STA = 12+22 12+50 13+00 ELEV = 1 ELEV = 2001.09 PROFILE VIEW - AREA 4A XSC-2 STA.12+51 2015 2015 2010 2010 2005 2005 2000 2000 1995 1995 0+50 0+10 XSC-3 STA.12+69 LU17 2015 2010 2010 2005 2005 2000 2000 1995 1995 0+50 0+10 SECTION VIEWS 0' 10, 20' 30' -- (HORIZONTAL) - .XSC-5 _ Q :------" $ _ Zz 4o p5 Qrc��d -007 __�003 OOl-�7 7:OU -- 00I- v ; '' - �s -------------------- �W z �{ 1997 - T$- ---- _- 1998 yW v 2002 4A I +' ` Y 1C_---SSS—SS-TSS_- `---- -- ----------- O - -------' ---_- -- - N.____ _'-- _ _________ _______ ' ___ , ' ``'- _ -_ — —----------- _ ----_ N O + m a N ,O1y ti co m^ oo m a^ v m m y U N m 0�1 ,m-I ,m-I � em+-I 00i• 100) T T V W u� u� a °'-I' a °'-I' ,SJ� J W W N W LAN LA W LAO W W W W W W W 1 u � u '+ 2005 -- -- -42% -2.9J -2.Sra 2000 STA =13+77 STA =13+93 ELEV = 1995.71 ELEV = 1995.49 STA =14+22 1990 FQ -_STA = 13+48 STA = 13+63 ELEV - 1996.33 STA =ELEV STA = 13+89 ELEV = 1995.20 ELEV = 1996.98 = 99199 5.71 ELEV = 1995.50 1985 13+50 STA = 14+00 STA = 14+05 14+30 99 ELEV = 1996.34 ELEV = 199995.23 — -Al 2010 2010 2005 2005 2000 2000 1995 1995 XSC-4 0+50 0+55 0+15 STA.13+10 XSC-5 STA.13+61 CUT: 284 YD^3 FILL: 175 YD^3 AREA 4A & 4B NET CUT/FILL: 109 YD^3 CUT 2015 2010 2005 2000 1995 0+50 PROPOSED GRADE EXISTING GROUND I 0 cd u ro cd W - XSC-6 _ E ��-001-�001-OOI -»-SS S5_SS-SS - `-----------=-�� _`__` --_ _ -- --- --- --- _--- i 0. -- ---- ------ XSC-] (HORIZONTAL) --- O > I - - - -_ -- ---- - - _ ^ _Z o -�_ � \ ' � � XSC- ____. -_' __-____-'" po 1995_ i1iA 1995 .1995 I\ / (ham(_ i / 1995-'----- - --------- (/ l0 (` EXISTING UTl (BACKFILL) EXISTING UT2 (BACKFILL) Col I W ------------- XS 0 Q¢ 1y jtl5 o Cl S1 00 Is - dtl CONFLUENCE BEGIN-`: `' \ \;`'`.. OOI - - (JpSS �IXI USING LOWER HAITH - _ ♦\� - - X BRANCH TYPICALS I END WORK ---" __ = A. 1 +11 EA 4B \ _ ---- dy �� I � 1 STAR 11 - O --. --- Ar Ig \ s -- --- _ - _ ------ --- ; ----_ -- S -- ---_ -` _ . --_ 1{I--- ----------\ -YOD --'- ---- __ -- - ---- -- - - ad '�--- lOII�l� LODE - -- `-- - ----- � _- __ `---- '- .------ `- `---- - _ --- _ ' 1' S dtl5 `- `l I � \`,,� � l--I w =_ \ L00 -- T- LOD - - 99a,_ �o O LQD D L -' - - _ _ L OD _ n _ _ LODt-LO Q LOUD -I n - d DDT- --� _ P �_ ---- -_ �------- LAN VIEW -AREA 4B MNVRF-I-II I NN.-II I NV'FI-I I O.VW-IlII I NeaHV-lI V.WII VraHVIl 00>JI0I1 OVeVaH1l O'>IOI rHal >II 'aH-I OWIIl eaNH O>IlI II OWHl cMa~I-I I Or>ll aMa-II I O'w-lI eNIyI Oe>wHl 'v~-iI CO 0ev~0 1p VYi OW0 NrVH1 J N.O'Wl.II Y HMW rNH 'WII II cw-I V1 O>IlI ^aHVI 0\W>OI0I Fp > + Ol + +I } O +} } N +Nl}l V C+ } } lO+ ++ } lP M N } 10 ¢+�O>IDI aII c�IyI } +Ol + e+a, Ol Ol II co rl 00 10 00 ^O^y OML^p�DO Na ~a a II a H a,> a a IIH > I>I H> > W l ,Fy+VcC�d Fcd��^B'++I �J > VI W V~I W V~I W U w w W w x 200s w , 20C + PROPOSED ti 2000 BANKFULL 20( -1.5% _-3.1% �- 1995 -- -- -- --- --- 3.1% _ - 3.9% _ _ -3.9% -3.5% 19� 1990 ELEV = 19916 19l GRADE CJ STA = 15+43 . 1980 STA =15+10 STA =16+20 19! ELEV = 1992.82 STA - 199 STA =16+03 EXISTING STA 1 16+87 87.14 14+30 14+5 15+00 15+50 ELEV = 1991.21 16+0 ELEV = 1990.35 ELEV = 1989.84 16+50 GROUND ELEV = 1987.14 17+0 1 +13 �4 STA =14+63 STA = 15+03 STA = 15+40 STA =15+68 STA =15+97 STA = 16+13 STA = 16+68 ELEV = 1994.60 ELEV = 1991.97 ELEV = 1991.22 ELEV = 1990.36 ELEV = 1989.85 STA =16+91 STA = 14+36 ELEV = 1992.82 ELEV = 1987.75 ELEV = 1987.13 ELEV = 1995.18 STA = 199 STA =14+91 STA =15+57 ELEV = 1994.62 STA =15+86 STA = 16+75 STA = 16+98 STA =14+41 ELEV = 1993.37 ELEV = 1991.56 ELEV = 1990.77 ELEV = 1995.17 81 STA = 15+53 STA = 16+39 ELEV = 1987.74 ELEV = 1986.72 END STA =14+STA - 15 82 ELEV = 1993.38 STA =15+28 STA =15+31 ELEV = 1992.13 ELEV = 1992.12 2010 2005 2000 1995 1990 0+00 + ELEV = 1988.90 STA =17+03 RESTORATION ELEV = 1991.57 ELEV = 1990.78 AREA 4 STA = 16+46 ELEV = 1986.72 ELEV = 1988.88 STA:17+11 PROFILE VIEW - AREA 4B CUT: 284 YD^3 PROPOSED GRADE FILL: 175 YD^3 EXISTING GROUND AREA 4A&4BNET CUT/FILL:109YD^3CUT ----- 2000 1995 1990 3 , 1985 �(^ ') 1980 0+50 0+00 0+50 0+00 XSC-8 0+50 0+00 0+50 0+60 m z w xsc-6 xsc-7 xsc-9 STA.15+7oSTA.14+30 STA.15+00 SECTION VIEWS s ^ a o & STA.16+59 2000 1995 20&5 2000 2000 1995 1995 1990 1990 1985 1985 2005 2000 2000 1995 1995 1990 1990 1985 1985 1980 1995 1990 1985 1980 1975 + m n START RESTORATION AREA 5 m STA.17+32 a II 1995 1990 1985 1980 1975 -, 001 �= 00 -- -- ----- -- ---- 1 � GOI —�-� 001 Odle XSC-3 XSC-4 -- EF 2.6 ;- -- 0 vI 6 a II a II > N w w it ---- --- _. 0' 10' 20' 30' (HORIZONTAL) V] -- _ 2 z 0 m 301-- __ O�\ 11 '✓ o" _ I WORK AREA 5 1 .18+93 _ -- PLAN VIEW - AREA 5 0 00 0 .-I N m �^ m y 'n .H n m ui + + + r + o Lq ^ ti a •o0-I m ,a0, °.-I° m °w oo END RESTORATION AREA 5 u .O1-I a .�-I II `� II a r°1-I ° 'H II H STA. 18+93 a v~i > w w w PROPOSED, w w BANKFULLI 17+25 / 17+ STA =17+55 J/ STAA = 17+65 J ELEV = 1985.46 ELEV = 1985.45 1995 1995 1990 1990 1985 1985 1980 1980 1975 1975 0+00 0+50 0+10 XSC-1 XSC-2 STA.17+82 STA.17+98 18+00 ELEV = 1983.88 STA = 17+81 [STA = 17+89 ELEV = 1984.81 ELEV = 1984.80 0+50 0+60 0+10 SECTION VIEWS 1995 1990 1985 1980 r 1975 18+50 STA = 18+75 19+00 ELEV = 1982.27 STA = 18+66 ELEV = 1982.29 0+50 XSC-3 STA.18+19 1995 1995 1990 1990 1985 1985 1980 1980 1975 1975 0+70 0+10 CUT: 63 YD^3 FILL: 43 YD^3 AREA 5 NET CUT/FILL: 20 YD^3 CUT PROPOSED GRADE ----- EXISTING GROUND 0+50 XSC-4 STA.18+26 1995 1990 1985 1980 1975 0+70 I I O I i E I o ZONE 1 - STREAMBANK PLANTING: LIVESTAKES, PLUGS, & RIPARIAN SEED \ \ \ \ ZONE 2 - FLOODPLAIN PLANTING: CONTAINER PLANTS, I \ \ \ BARE ROOTS, & RIPARIAN SEED l 000ZONES-WETLANDPLA TING:TEMPORARY INUNDATION 000000O WO O O O LAND AND PLANTING \ 00� INVASIVE SPECIES REMOVALI(\REA / O LIVESTAKES - SEE DETAIL 2, SHEET 6.4 \ PLUGS - SEE DETAIL 2, SHEET 6.4 CONTAINER PLANTS - SEE DETAIL 3, SHEET 6.4 FT _ _ I ✓/ I \� i I � I I � —7 BARE ROOTS - SEE DETAIL 1, SHEET 6.4 \\ 00 - /v00 cp O� 10 SHEET 4.2 y SHEET 4.3 MAINTENANCE BLDG s '• _-�\--: /: ��, ■//'I laSi Tom` I, -� 9� �11.i dGi iil b �eleiieeec: Gii GGiiii ®� i fiJ i�.G i- • /' e� it �reee�r a �leee �, . s"�155 ° rl.. SO r!l�5rrrrr •rr.� Al 1* r. � ^ an � - iiGGsl TdGGi'dllll■'�. /J�Pi -l!i ! s .• < ••-G!!!e!? 1 le!lllr.� • a G!I l9D 6�+r �: � ,� 'L. �� ■l6111555i•. 1 l555rI� •� r�G5 q5r •p. 11■■ll!'ii GC it 11 isliii' GGii b . • ` — ' I •l1\'l■■11.5551 r5`'1 Illi �' . . • Ii ,3- "'�i *` 0 l7llliGiiiiiGii fiat ■lsllluee!!le�.�.lnl '�` •a r �� r�•�� "� �*`;� ?� � � ■i\\ilia iGe / YGGi � � i +�� • � .�, '+�` .• � r \lall!!!leli elel� • ••^��i r �je •# Ge iIt IaS,.' r.►v5i5 qel `� ��, r 1lClii i AA IJII •• ���rv..�m - • - ��— ualaa2�51� : # � �.r) iF. • llllcu■ • * _ C ! •a • io.ur•• a � •1 �' � •1 ^F •e � i i 0 0 0 i LOD—LOD— 01 LOD � LO I I I I , I , I , I I 0' 50' 100' 150' (HORIZONTAL) P� ZONE 1- STREAMBANK PLANTING: LIVESTAKES, PLUGS, & RIPARIAN SEED ZONE 2 - FLOODPLAIN PLANTING: CONTAINER PLANTS, BARE ROOTS, & RIPARIAN SEED 0-0-0 O O ZONE 3- WETLAND PLANTING: TEMPORARY INUNDATION 000000 000 AND SHALLOW/DEEP WETLAND PLANTING INVASIVE SPECIES REMOVAL AREA PLANTING NOTES - 1. THE MSD ROAD WILL REMAIN OPERATIONAL, BUT THE TEMPORARY HAUL ROAD FROM THE MAINTENANCE BUILDING ALONG THE GULLEY AND CROSSING HAITH BRANCH WILL BE DECOMMISSIONED AND PLANTED ACCORDING TO HATCHES 2. ALL IMPACTED AREAS SHALL HAVE RIPARIAN SEED AND TEMPORARY SEED AND STRAW SPREAD -A HATCH IS NOT DRAWN TO INDICATE THIS LIVESTAKES - SEE DETAIL 2, SHEET 6.4 PLUGS - SEE DETAIL 2, SHEET 6.4 CONTAINER PLANTS - SEE DETAIL 3, SHEET 6.4 BARE ROOTS - SEE DETAIL 1, SHEET 6.4 0' 20' 40' 60' (HORIZONTAL) r. m ZONE 1- STREAMBANK PLANTING: LIVESTAKES, PLUGS, & RIPARIAN SEED ZONE 2 - FLOODPLAIN PLANTING: CONTAINER PLANTS, BARE ROOTS, & RIPARIAN SEED 000000000 ZONE -WETLAND PLANTING: TEMPORARY INUNDATION O O O O O AND SHALLOW/DEEP WETLAND PLANTING INVASIVE SPECIES REMOVAL AREA LIVESTAKES - SEE DETAIL 2, SHEET 6.4 PLUGS - SEE DETAIL 2, SHEET 6.4 CONTAINER PLANTS - SEE DETAIL 3, SHEET 6.4 BARE ROOTS - SEE DETAIL 1, SHEET 6.4 PLANTING NOTES - 1. THE MSD ROAD WILL REMAIN OPERATIONAL, BUT THE TEMPORARY HAUL ROAD FROM THE MAINTENANCE BUILDING ALONG THE GULLEY AND CROSSING HAITH BRANCH WILL BE DECOMMISSIONED AND PLANTED ACCORDING TO HATCHES 2. ALL IMPACTED AREAS SHALL HAVE RIPARIAN SEED AND TEMPORARY SEED AND STRAW SPREAD -A HATCH IS NOT DRAWN TO INDICATE THIS I 0' 20' 40' 60' (HORIZONTAL) O ...q n� 0 cn Q) ZONE 1- STREAMBANK PLANTING: LIVESTAKES, PLUGS, & RIPARIAN SEED \ ZONE 2 - FLOODPLAIN PLANTING: CONTAINER PLANTS, BARE ROOTS, & RIPARIAN SEED 0-0-0 O O ZONE 3- WETLAND PLANTING: TEMPORARY INUNDATION 000000000 AND SHALLOW/DEEP WETLAND PLANTING INVASIVE SPECIES REMOVAL AREA PLANTING NOTES - 1. THE MSD ROAD WILL REMAIN OPERATIONAL, BUT THE TEMPORARY HAUL ROAD FROM THE MAINTENANCE BUILDING ALONG THE GULLEY AND CROSSING HAITH BRANCH WILL BE DECOMMISSIONED AND PLANTED ACCORDING TO HATCHES 2. ALL IMPACTED AREAS SHALL HAVE RIPARIAN SEED AND TEMPORARY SEED AND STRAW SPREAD -A HATCH IS NOT DRAWN TO INDICATE THIS LIVESTAKES - SEE DETAIL 2, SHEET 6.4 PLUGS - SEE DETAIL 2, SHEET 6.4 CONTAINER PLANTS - SEE DETAIL 3, SHEET 6.4 BARE ROOTS - SEE DETAIL 1, SHEET 6.4 N 0' 20' 40' 60' (HORIZONTAL) O ...q n� O UO Q) I P. wwp- i,, r1'l 51110.13 IvNS . ZONE 1- STREAMBANK PLANTING: LIVESTAKES, PLUGS, & RIPARIAN SEED ZONE 2 - FLOODPLAIN PLANTING: CONTAINER PLANTS, BARE ROOTS, & RIPARIAN SEED 000000000 0o0o0o00ZONE 3 - WETLAND PLANTING: TEMPORARY INUNDATION o0 0 0 nnr%r-�0� AND SHALLOW/DEEP WETLAND PLANTING 666M INVASIVE SPECIES REMOVAL AREA zzo co 000 Q) U 75 u u Q) z u ;J u Q) PLANTING NOTES - 1. THE MSD ROAD WILL REMAIN OPERATIONAL, BUT THE TEMPORARY HAUL ROAD FROM THE MAINTENANCE BUILDING LIVESTAKES - SEE DETAIL 2, SHEET 6.4 ALONG THE GULLEY AND CROSSING HAITH BRANCH WILL BE DECOMMISSIONED AND PLANTED ACCORDING TO HATCHES 2. ALL IMPACTED AREAS SHALL HAVE RIPARIAN SEED AND TEMPORARY SEED AND STRAW SPREAD - A HATCH IS NOT DRAWN PLUGS -SEE DETAIL 2, SHEET 6.4 TO INDICATE THIS CONTAINER PLANTS - SEE DETAIL 3, SHEET 6.4 BARE ROOTS - SEE DETAIL 1, SHEET 6.4 • 20' 40' 60' (HORIZONTAL) I N 1 I I 1 \ 0' 60' 120' 180' \ (HORIZONTAL) o D (301 LOD = 5.6 ACRES Temporary Seeding (2.2 ACRES) Pure Live Seed Approved Dates Species Name Common Name Stratum Density (lbs/acre) Aug 15 - May 1 Seca/e cerea/e Rye Grain Herb 80 May 1 -Aug 15 Setanaita/ica German Millet Herb 50 -'- --LJ -- SEE GENERAL NOTES AND SYMBOLS (SHEET 0.3) FOR OTHER SYMBOLS NOT IN THIS LEGEND PROPOSED CONSTRUCTION ENTRANCE SEE DETAIL4, SHEET 6.7 PROPOSED SILT FENCE SEE DETAIL 2, SHEET 6.6 PROPOSED TEMPORARY CROSSING SEE DETAIL 1, SHEET 6.7 PROPOSED ACCESS PATH L —J SEE DETAIL 2, SHEET 6.5 PROPOSED STOCKPILE/STAGING AREA SEE DETAIL 3, SHEET 6.6 EXISTING MSD ROAD LOD LOD PROPOSED LIMITS OF DISTURBANCE SAF SAF PROPOSED TREE & WETLAND PROTECTION FENCING SEE DETAIL 1, SHEET 6.3 AND DETAIL 2, SHEET 6.7 3 18 c It 0 i O ' u J Q z� �e z x�N tooel� �W 0' 20' 40' 60' (HORIZONTAL) Q idol( N FH w I (HORIZONTAL) II' \ 30„RCA 0 ..r 0 UO Q) I I GO 55 -- 55 I _SS 55 0' 20' 40' 60' (HORIZONTAL) N y / azw � y 3 ° a G W �zz ¢Sl ¢ w I O ...q O cn Q) F4 Y"rk GO I 0' 20' 40' 60' 0 (HORIZONTAL) W o aW 7.6 zoo Aa�z �sa ------ ----= ---- w W I G Lc SEE PROFILE FOR LENGTH OF RIFFLE B TOP OF BANK T P 3" TO 6" DIAMETER WOODY DEBRIS WORKED INTO RIFFLE SUBSTRATE MICRO POOL HABITAT BEHIND LARGER WOODY DEBRIS TOE OF SLOPE (TYP) HEAD OF RIFFLE ELEVATION POINT PER PROFILE RIFFLE BOTTOM A A' WIDTH PER TYPICAL SECTIONS RIFFLE MATERIAL FLOW SEE PROFILE Section A -A' FOR LENGTH OF RIFFLE TAIL OF RIFFLE ELEVATION POINT PER PROFILE EXTEND RIFFLE B MATERIAL ON J 3" TO 6" BRUSHY MATERIAL SIDE SLOPES Plan View B, A A' TOP OF BANK (TYP) WORKED INTO ROCKY SUBSTRATE RIFFLE TYPICAL MIX SHALL BE OF TYPE V� TOE OF SLOPE(TYP) SPECIFIED ON RSC OR STREAM ij SEQUENCE DETAIL TYPICAL MIX SHALL BE OF TYPE RI WIDTH PEFFLE R FLOW %( SPECIFIED ON RSC OR STREAM TYPICAL SECTIONS �� 0 0 0 SEQUENCE DETAIL LOG EXPOSED 1" TO 3" ABOVE RIFFLE MATERIAL FINISHED RIFFLE ELEVATION 12" MIN. RIFFLE INVERT PER PROFILE TOE OF SLOPE (TYP) Section B-B' i�/i /��� TOP OF BANK (TYP) EXTEND RIFFLE �i TOP OF BANK (TYP) B' MICRO POOL HABITAT NOTES: �^C:�.N.�.N.�.CC� BEHIND LARGER MATERIAL ON WOODY DEBRIS 1. USE SMALLER DIAMETER Profile A -A' SIDE SLOPES Section B-B' WOOD FOR SMALLER CHANNELS. Plan View 2. WOOD SHALL COMPRISE 20 To 50 % OF THE RIFFLE SURFACE AREA. Constructed Riffle r2-\Woody 2-WoodyRiffle 5.1 Not to Scale CR-CR CR-w 6.1 Not to Scale ADD BRUSH OR WOODY REVETMENTS AS DIRECTED FOR VISUAL INTEREST CR-CH LENGTH VARIES PER PLAN AND DIVERSITY CR-CA SELECT RIFFLE GRADE CONTROL MIX B MATERIAL CHUNKY MATERIAL: TOP OF BANK (TYP) CLASS 1 STONE OR SALVAGED RIFFLE ONSITE BOULDERS TOE OF SLOPE ( P) MATERIAL MIN 0.5'x1'x1.5' SEE PLAN/PROFILE FOR LENGTH TAIL OF RIFFLE CHUNKY MATERIAL: ELEVATION POINT 3" MAX PLACE TO MAINTAIN y.� FLOW THALWEG WITHIN PER PROFILE CENTRAL OF CHANNEL RIFFLETHICKNESS TOP OF BANK (TYP) B' HIGH DENSITY GRADE CONTROL ��i���j�i�;i�;ij��jjj;���� FROM TABLE MATERIAL AT HEAD AND TAIL OF HEAD OF RIFFLE RIFFLE (IN GLIDE AND RUN) TOE OF SLOPE (TYP) ELEVATION POINT Profile A -A' PER PROFILE HEAD OF RIFFLE TAIL OF RIFFLE ELEVATION POINT ELEVATION POII MICROPOOLS FLOW PER PROFILE PER PROFILE B, NOTES: TOE OF INTERMITTENTLY WORK GRADE • CONTRACTOR SHOULD INCORPORATE MICRO POOLS SLOPE A q' Plan View CONTROL SIZE MATERIAL INTO BANKS AND OTHER POOLS AS FEASIBLE FOR SLOPE AND RIFFLE ELEVATION UTILITY CONFLICTS PER PROFILE • DESIGNER TO DIRECT AND OVERSEE • WHERE NECESSARY INCORPORATE ROCK DROPS PER DETAIL INTO CASCADING RIFFLE TOP OF BANK g • GRADE CONTROL MATERIAL CONSISTS OF SELECT RIFFLE MIX BOULDERS, SEE SPECS. \ Plan View GRADE CONTROL 18" AVG THICKNESS MATERIAL, MAX RIFFLE INVERT PER PROFILE ADJUSTTO AVOID UTILITY CONFLICTS PROTRUSION PER SPECS Section B-B' OR DESIGNER TOP OF BANK (TYP) NOTES: 1. CHUNKY MATERIAL ELEVATION Section A -A' SHALL BE 0" TO 3" ABOVE Section B-B' RIFFLE MATERIAL BASED ON ENGINEER'S DISCRETION. �ascading Riffle 4 Chunk Riffle 6.1 Not to Scale 6'1 Not to Scale Q z� e 29[o �w aW 0 �z�a z A x�N O a Z Q F a �W z O 0� i-a O 4, m U m EXISTING FLOODPLAIN DITCH TOP OF BANK EXISTING DITCH PLANT LIVESTAKES, HERBACEOUS PLUGS, AND AVAILABLE TRANSPLANTS IN BACKFILLED DITCH AREA. BACKFILL EXISTING DITCH TO ADJACENT CONSTRUCTED FLOODPLAIN ELEVATION. GRADE AT LOW SLOPE (0.2%) TO MAINTAIN POSITIVE DRAINAGE TOWARD STREAM CHANNEL. �gA1lT_l R� APPLY WETLAND SEED M IX AN D EROSION CONTROL MATTING TO BACKFILLED DITCH AREA. TIE TOP OF DITCH TO FLOODPLAIN GRADING AS SHOWN IN PLANS OR AS DIRECTED CONSTRUCTED STREAM AND FLOODPLAIN GRADE CONSTRUCTED STREAM TOP OF BANK CONSTRUCTED STREAM TOP OF BANK CONSTRUCTED FLOODPLAIN-------\y CONSTRUCTED FLOODPLAIN 000 00 UNDISTURBED AND EXTEND EROSION CONTROL MATTING VEGETATED AREAS OF DITCH \ AS INDICATED ON PLANS OR AS DIRECTED \ DO NOT REQUIRE STABILIZATION IF ALTERNATIVE OUTLET IS INDICATED IN PLANS ADD NATIVE MATERIAL COBBLE AT CONFLUENCE WITH PROJECT STREAM TO CREATE BACKWATER EXTEND EROSION CONTROL MATTING SLOUGH HABITAT AS DIRECTED. AS INDICATED ON PLANS OR AS DIRECTED BACKFILL Ei MIX FROM CONSTRUCTED RIFFLE 1 Outlet Stabilization 6.2 Not to Scale ARCHED BOTTOM WIDTH (TYPICAL SECTIONS) NONWOVEN ANCHOR BOULDERS INTO FILTER FABRIC 2-4" BANK PER RSC OR STREAM SEQUENCE DETAIL BOULDER SIZE PER RSC OR THALWEG TO BE 2-4" STREAM SEQUENCE DETAIL LOWER THAN ADJACENT AREAS OF ROCK STEP Section A -A' BOULDER, SPLASH ROCK BASE FLOW FILTER FABRIC Profile View Plan View with A, :.:.ORMI: WAVA AM MAVAMAVAVA �OF ass FLOW ELEVATION POINT VARIES BY STEP ARRANGEMENT SEE PROFILE FOR ELEVATION Arched BEGINNIN( 10° -15° ANGLE SILL ELEVATION PER PROFILE (TYP) FLOW BACKFILL,""'*" WATER STon MATERIAL Angled A Plan View eNGLEITHIS G ON UPSTREAM 1/3 OF STEP NOTES: DOWNSTREAM AND HIGHER • DROP TYPE MAY BE VARIED IN THE FIELD BY DESIGNER. IN GENERAL, VARY DROP TYPE OFTEN WITH ROUGHLY EQUAL NUMBERS OF EACH DROP TYPE WITHIN A REACH. y, Irregular • DETAILTO BE APPLIED IN CONJUNCTION WITH RSC AND STREAM SEQUENCE • SECTION VIEWS REPRESENT ARCHED ROCK DROP VARIATION. MODIFY SECTIONS AS NEEDED TO DOUBLE THALWEG OR ACCOMMODATE OTHER VARIATIONS. VARIABLE THALWEG PLACEMENT n Rock Drop 6.2 Not to Scale Types of Step Configurations nPlunge Pool 6.2 Not to Scale ADD ROOT WAD, BRUSH TOE, OR TRANSPLANTS AS DIRECTED BY ENGINNER 12" - 16" DIAMETER FLOW NONWOVEN FILTER FABRIC BANK Qo xe ?moo U w w �aW �z�a z x�N �V INSTALLED �Q �W E LL ELEVATION PER (OFILE POOL LENGTH PER PROFILE r' POOL DEPTH PER PROFILE EXTEND FILTER FABRIC 5' MIN. UPSTREAM i 0 . , -q 4, i-a 0 4, m U m Y�7k 05�'��G cn Q V +�— CHANNEL BOTTOM WIDTH y� 0.2' ✓. �. iti�F . � � ,tea Y� EMBED LOG SILL ELEVATION 12" - 16" DIAMETER LOG 4' (MIN.) PER PROFILE (TYP) N 0. ,3 N Section A - A' 4 Lo Sill zd r r aw� 6.2 € s � a Not to Scale ° i a ° & REMOV DEBRIS FROM Sarhi— Via ' �m Tree Protection 6.3 Not to Scale 3' a _ ELEV. OF ,;" 12" MAX DOWNSTREAM j RIFFLE INVERT 1 FLO' MIX IN BED/BANK MATERIALTHAT CAN SUPPORT HERBACEOUS VEGETATION Plan Via.. CONFORM TO NATURAL CHANNEL/BANK CONTOi NORMAL NORMAL BASEFLOW TOP OF BANK LLL BE APPLY JUNCUS SEED AND JOINT PLANT HERBACEOUS PLUGS EVERY 1' ARE WITHIN Vegetation FURBED. PLUG PLANTING MAY REQUIRE SELECTED SURFICIAL STONE REMOVAL, ADDITION OF SOIL AND REPLACEMENT OF STONE WIDTH PER TYPICAL SECTIONS BACKFILL IN 6" MIN. LIFTS EROSION CONTROL MATTING FILTER FABRIC \\�� DENSELY PACKED BRUSH, WOODY DEBRIS AND SOIL TOE OF SLOPE ELEV. 6" BELOW J NATIVE SOIL POOL DEPTH Sam+inn A -A' O DENSELY PACKED WOODY DEBRIS Plan View Brush Toe 6.3 Not to Scale EROSION CONTROL MATTING BRUSH MATERIAL TO BE INSTALLED FLUSH WITH BANK COIR MATTING / (PINCHED UNDER STONE) 3-6" TOP OF BANK q—tinn R-R' APPLY AND COMPACT SOIL ON EXISTING ERODED BANKS; WHERE APPLICABLE USE TOE STAKES TO STAKE IN MATTING APPLY TO SURFACE AS AN 8-14" THICK LAYER OF CLASS B/1 MATERIAL NOTES: 1. STONE SHALL BE SIMILAR TO RIFFLE STONE AND A HIGH PERCENTAGE OF EXISTING NATURAL OR NATURALIZED STONE IS PREFERRED FOR AESTHETICS 2. JOINT PLANTING WILL REQUIRE SOME REMOVAL OF SURFICIAL STONE, INSERTING HERBACEOUS PLUGS WITHIN THE RESULTING GAPS/JOINTS, BACKFILLING WITH 2-4 INCHES OF SOIL AND FINALLY REPLACING THE REMOVED STONE BACK IN PLACE, Rock Toe Protection 6.3 Not to Scale NOTES: 1. OVEREXCAVATE 3' OUTSIDE OF TOP OF BANK (BANKFULL). 2. INSTALL A DENSE LAYER OF BRUSH/WOODY DEBRIS, WHICH SHALL CONSIST OF SMALL BRANCHES AND ROOTS COLLECTED ON -SITE AND SOIL TO FILL ANY VOID SPACE. LIGHTLY COMPACT BRUSH/WOODY DEBRIS LAYER. 3. TOP LIFT CAN BE SUBSTITUTED FOR SOD MAT 4. BRUSH SHOULD BE ALIGNED SO STEMS ARE ROUGHLY PARALLEL AND IS INSTALLED POINTING SLIGHTLY UPSTREAM. 5. INSTALL FILTER FABRIC OVER BRUSH/WOODY DEBRIS. 6. INSTALL EARTH BACKFILL OVER BRUSH/WOODY LAYER ACCORDING TO TYPICAL SECTION DIMENSIONS. 7. SEED, MULCH AND INSTALL EROSION CONTROL MATTING AND BANK STABILIZATION PER PLANS. 40 z M bNN� ��aW z viz �'M� F NI INSERTTHE DIBBLE, OR SHOVEL, STRAIGHT DOWN INTO THE SOIL TO THE FULL DEPTH OF THE BLADE AND PULL BACK ON THE HANDLE TO OPEN THE PLANTING HOLE. (DO NOT ROCK THE SHOVEL BACK AND FORTH AS THIS CAUSES SOIL IN THE PLANTING HOLE TO BE COMPACTED, INHIBITING ROOT GROWTH. BUFFER WIDTH VARIES BAN KFU LL PLANTING PLAN RESTORED CHANNEL O 3 REMOVE THE DIBBLE, OR SHOVEL, AND PUSH THE SEEDLING ROOTS DEEP INTO THE PLANTING HOLE. PULL THE SEEDLING BACKUP TO THE CORRECT PLANTING DEPTH (THE ROOT COLLAR SHOULD BE 1 TO 3 INCHES BELOW THE SOIL SURFACE). GENTLY SHAKE THE SEEDLING TO ALLOW THE ROOTS TO STRAIGHTEN OUT. DONOTTWISTOR SPIN THE SEEDLING OR LEAVE THE ROOTS 1-ROOTED. NOTES: 1. 90 TREES AND 35 SHRUBS ARE TO BE PL. APPROXIMATELY A 10'X10' GRID SPACII THROUGHOUT ALL GRADED/IMPACTE: 2. SEE TABLES ON PLAN SHEET 3.0 FOR SP 1.5x C( D INSERT THE DIBBLE, OR SHOVEL, SEVERAL INCHES IN FRONT OF THE SEEDLING AND PUSH THE BLADE HALFWAY INTO THE SOIL. TWIST AND PUSH THE HANDLE FORWARD TO CLOSE THE TOP OF THE SLIT TO HOLD THE SEEDLING IN PLACE. DIBBLE BAR PLANTING BAR SHALL HAVE A BLADE WITH A TRIANGULAR CROSS-SECTION, AND SHALL INCHES WIDE AND 1 INCH THICK AT CENTER. ROOTING PRUNING 7 ALL ROOTS SHALL BE PRUNED TO AN APPORIATE LENGTH TO PREVENT J-ROOTING. PUSH THE DIBBLE, OR SHOVEL, DOWN TO THE FULL DEPTH OF THE BLADE. vJ PULL BACK ON THE HANDLE TO CLOSE THE BOTTOM OF THE PLANTING HOLD. THEN PUSH FORWARD TO CLOSE THE TOP, ELIMINATING AIR POCKETS AROUND THE ROOT. n REMOVE THE DIBBLE, OR SHOVEL, AND CLOSE AND FIRM UP THE OPENING WITH YOUR HEEL. BE CAREFULTO AVOID DAMAGING THE SEEDLING. NOTES: 1. ALL SOILS WITHIN THE BUFFER PLANTING AREA SHALL BE DISKED, AS REQUIRED, PRIOR TO PLANTING. 2. ALL PLANTS SHALL BE PROPERLY HANDLED PRIOR TO INSTALLATION TO INSURE SURVIVAL. 1 Bare Root Planting 6.4 Not to Scale 2x CONTAINER WIDTH Container Planting 6.4 Not to Scale TOP OF BANK SPACING FOR PLUGS TO BE DETERMINED IN THE FIELD 3SPACING FOR LIVE STAKES PLUG (TYP) RIFFLE TOE OF SLOPE MATERIAL 1/7" TO 2" 0 2' TO Y LIVE STAKE DIAMETER TAPEREDATBOTTOM T ;. 0"Il Tlot�;l EROSION CONTROL LIVE STAKE (TYP) MATTING SEE PLAN VIEW (SEE DETAIL) FOR SPACING TOP OF BANK Section View NOTE: 1. LIVE STAKES TO BE PLANTED IN AREAS AS SHOWN ON DETAIL AND DIRECTED BY THE ENGINEER. z Streambank Livestake & Plug Planting 6A Not to Scale TRANSPLANTED VEGETATION AND ROOTMASS TOP OF BANK EROSION CONTROL \ MATTING (TYP.) • CUT AND PATCH COIR MATTING • PROVIDE 6" ECOSTAKES Section View D:cn,. 1-1..11..1:— NOTES: 1. BANK TO BE STABILIZED THAT WILL ACCOMMODATE THE SIZE OF TRANSPLANT TO BE PLACED. 2. EXCAVATE TRANSPLANT. EXCAVATE THE ENTIRE ROOT MASS AND AS MUCH ADDITIONAL SOIL MATERIAL AS POSSIBLE. IF ENTIRE ROOT MASS CANNOT BE EXCAVATED IN ONE BUCKET LOAD, THE TRANSPLANT IS TOO LARGE AND ANOTHER SHOULD BE SELECTED. 3. PLACE TRANSPLANT IN THE BANK TO BE STABILIZED SO THAT VEGETATION IS ORIENTATED VERTICALLY. 4. FILL IN ANY HOLES AROUND THE TRANSPLANT AND COMPACT. 5. ANY LOOSE SOIL LEFT IN THE STREAM SHOULD BE REMOVED. 6. PLACE MULTIPLE TRANSPLANTS CLOSE TOGETHER SUCH THAT THEY TOUCH. Transplanted Vegetation 6.4 Not to Scale TRANSPLANTED VEGETATION OFBANK OF SLOPE IF44BI D:cn TRANSPLANTED VEGETATION TOP OF BANK AND ROOTMASS EROSION CONTROL MATTING (TYP.) ROOT WAD Section View Pool Installation w/ Root Wads Q� z ae �o ��aWz�z z x�N �z �QHa �W i m az�€ y IMPERVIOUS DIKE (SEE INSET "B") HIGH STRENGTH DOUBLE STITCHED "J" TYPE SEAMS. NOTES: 1. DEWATER SILT -LADEN WATER IN WORK AREA TO REMOVE VISUAL TURBIDITY. DEWATERING INTO GRASS IS ACCEPTABLE IF TURBIDITY CAN BE REMOVED USING THIS METHOD. ALL DISCHARGE MUST BE RETURNED TO THE STREAM ALONG A STABILIZED, NON -EROSIVE OUTLET. 2. PUMP -AROUND SYSTEM AND PHYSICAL FLOW DIVERSIONS SHALL NOT BE LEFT UNATTENDED WHILE SYSTEMS ARE IN-PLACE/OPERATING. 3. IN -STREAM DIVERSIONS AND PUMP -AROUND EQUIPMENT SHALL BE REMOVED FROM THE STREAM AND WETLAND IN ANTICIPATION OF OR DURING BANKFULL PRECIPITATION EVENTS. IN -STREAM GRADING AND STRUCTURE CONSTRUCTION WILL NOT BE ALLOWED DURING BANKFULL FLOW EVENTS. 4. THE CONTRACTOR SHALL TAKE PRECAUTION TO PROTECT AGAINST EROSION AND SEDIMENTATION WHEN TURNING WATER BACK INTO NEWLY CONSTRUCTED CHANNEL AND WETLAND. PUMPING, STONE, AND SANDBAGS SHOULD BE USED AS NECESSARYTO DIRECT FLOW IN A NON -EROSIVE WAY. CHANNELS MUST BE FULLY STABILIZED WITH MATTING AND PERMANENT OR TEMPORARY BED STABILIZATION MATERIAL/STRUCTURES PRIOR TO RELEASING WATER INTO THESE AREAS. NOTES: 1. IF HAUL ROADS ARE A SOURCE OF EROSION, ONE OR MORE OF SILT FENCE, DIVERSIONS, TEMPORARY STABILIZATION (STRAW) OR OTHER MEASURES SHALL BE APPLIED TO PREVENT SEDIMENTATION TO STREAM. 2. ONCE THE PROPOSED HAUL ROAD FROM THE LAYDOWN AREA IS NO LONGER NEEDED TO CONDUCT PROJECT ACTIVITIES, RENATURALIZE HAUL ROADS AND CONDUCT RIPPING, DISCING OR PULVERIZING, THEN SEED AND APPLY MULCH. RETURN EXISTING MSD ROAD TO EXISTING CONDITIONS OR BETTER. ZINTAKE HOSE PUMP ---,/ ACTIVE WORK AREA INTAKE HOSE WATERING PUMP DISCHARGE HOSE' DEWATERING BAG (SEE INSET "A") PROPOSED WORK AREAS THROUGHOUT HAITH BRANCH ITYP) BAG PLACED ON SEWN IN SPOUT AGGREGATED OR STRAW. HIGH STRENGTH STRAPPING FOR HOLDING HOSE DEWATERING IN PLACE. DISCHARGE HOSE 10 BAG WATER FLOW FROM PUMP 15' \ FLEXIBLE DISCHARGE HOSE EXISTING HAITH BRANCH EXISTING MSD ROAD TO BE USED AS HAUL ROAD ALONG HAITH BRANCH PROPOSED HAUL ROAD FROM LAYDOWN AREA TO BE DECOMMISSIONED AND NATURALIZED IMMEDIATELY AFTER USE IS NO LONGER REQUIRED \ / LAYDOWN AREAAND CONSTRUCTION i ENTRANCE v EXISTING \ HAITH GULLEY \ PROPOSED HAITH GULLEY (RSC) nHaul Roads 6.5 Not to Scale IMPERVIOUS DIKE (SEE INSET "B") 10' X 5' STABILIZED OUTLET USING CLASS B RIPRAP AND NCDOT TYPE 2 FILTER FABRIC. (SEE INSET "C") Pump Around System 6.5 Not to Scale WOODEN STAKE (TYP) 3' MAX. SPACING EROSION CONTROL MATTING (TYP) Inset"A" Dewatering Bag EXISTING TERRAIN DEWATERING BAG LTER FABRIC — 15' to 20' NOTE: 1. PROVIDE STABILIZED OUTLET TO STREAMBED. SAND BAG (24" X 12" X 6") OR STONE. IMPERVIOUS SHEETING F�SZW Inset "B" Impervious Dike 10' MIN. FABRIC Inset"C" Stabilized Outlet STREAM BED STABILIZED OUTLET USING CLASS B RIPRAP TRENCHED INTO EXISTING GROUND A MINIMUM OF 6". SIZE AND LOCATION TO BE DETERMINED IN THE FIELD BY THE ENGINEER. FLEXIBLE DISCHARGE HOSE FROM PUMP AROUND PUMP HELD IN PLACE WITH SAND BAGS AS NEEDED. 6" MIN. OVERLAP IN DIMENSIONS MAY VARY DOWNSTREAM DIRECTION BY MANUFACTURER BUT AT MAT ENDS SHALL BE SUBJECT TO 4" DESIGNER APPROVAL. SHALL RESIST BREAKAGE PER SPEC. TOP OF BANK 0.4' 18" 11" STAKE TOE OF SLOPE Plan View �2„ 0.6" TOP OF BANK Toe Stake Wooden Stake SECURE MATTING IN _ f 6" DEEP TRENCH IN SANDY SOILS Qo z bNN� ��aW >,vrz az �Q�"3 F O • -Fj m i-a O DO 0) WOODEN STAKE (TYP)���� SPECIAL SEEDING NOTE�� i TOE OF SLOPE INSTALLATION NOTES: 1. USE 700 g/m2 DENSITY COIR MATTING. 2. SEED AND MULCH SLOPES PRIOR TO MATTING INSTALLATION. Section View 3. TOE STAKES TO BE USED AT TOP AND TOE. 12" WOODEN STAKES e MAY BE USED ON SLOPE FACES.; a" SPECIAL SEEDING NOTE: MAINTENANCE NOTES: TOE STAKE (TYP) APPLY EXTRA JUNCUS SEED ALONG BANK 1. ALL EROSION CONTROL MATTING SHOULD BE INSPECTED AT LEAST a SLOPE THROUGHOUT PROJECT AREA PRIOR TO APPLYING MATTING. ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 N 3 HOURS. L J 2. ANY MATTING FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. 3. TENTING (EROSION OCCURRING UNDERNEATH INSTALLED Coir Matting MATTING) WILL REQUIRE PEELING BACK MATTING, REPAIRING ANY n 6.5 RILLS, AND REAPPLYING THE MATTING. g r m Not to Scale z € y o =. a WOOD STAKE (TYP) L TOP OF EROSION SLOPE SURFACE CONTROL MATTING TRENCH ? �L SLOPE SURFACE INSTALLATION A INSTALLATION B STAKE DETAIL ON BARE SOIL STAKE DETAIL ON EROSION CONTROL MATTING 12' DIA. STRAW OR COIR WATTLE Profile View COMPACTED SOIL ALONG FRONT AND BACK (TYP) DITCH OR SLOPE TRENCH IN WATTLE GRADE ON BARE SOIL WOODEN STAKE WITH WATTLE ANCHORED TO THE TOP MAINTENANCE NOTES: 1. ALL WATTLES/LOGS SHOULD BE INSPECTED AT aw - vow LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2. WATTLES/LOGS COLLAPSING, TEARING, WATER BYPASSING THE WATTLES/LOGS, OR OTHER FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. Section View - Ditch 3. SEDIMENT TRAPPED BEHIND ROCK SILT CHECK Application DAMS SHOULD BE CAREFULLY REMOVED ONCE DEPTH REACHES 6". Straw or Coir Wattles 1 6.6 of to ca e NOTES: 1. STOCKPILES STAGING AREAS SHALL ONLY BE PLACED IN AREAS DESIGNATED ON THE PLANS. 2. SILT FENCE SHALL BE PLACED ON STREAM SIDE OF ALL STOCKPILES. 3. STOCKPILES SHALL BE LOCATED A MINIMUM OF 50 FEET FROM STORMWATER DRAINS OR INLETS. MAINTENANCE NOTES: 1. ALL STOCKPILE AREAS AND SILT FENCES SHALL BE INSPECTED AT LEAST ONCE PER WEEK OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2. SILT FENCE SHOULD BE INSPECTED FOR TEARS, UNTRENCHED AREAS, OR OTHER FAILURES AND REPAIRED WITHIN 24 HOURS 3. SEDIMENT SHALL BE REMOVED FROM BEHIND THE SILT FENCE ONCE DEPTH REACHES 6" 4. ANY SOIL STOCKPILES LEFT IN PLACE FOR LONGER THAN 7 DAYS SHALL BE SEEDED AND MULCHED OR OTHERWISE STABILIZED. 2 MIN. SILT FENCE MAIL STANDARD TEMPOR AR r SILT FENCE (5EE STO, DEruE > m7 HORIZONTAL BRACE WIRE CP PLASTIC TIES (s NIN) aLR4U=1=pcu-l:°u`Liii=' uumSTEEL T POSTII� s III S�I�f STE - _�.T POST FRp NOTES. 1. SET FABRIC HEIGHT AT 1 TT MAXIMUM BETWEEN SUPPORT POSTS SPACED NO MORE MAN 4 FT APART. 2, SET OUTLET ELVATIOIN SC GNAT WATER DEPM CANNOT LXCFF6 L5 IT AT THE LOWEST POINT ALONG THE FENCELINE. 3INSTALL A HORIZONTAL BRACE BETWEEN THE SUPPORT POSTS TO SERVE AS AN OVERFLOW WEIR AND TO SUPPORT TOP OF FARRIG 4. PROVIDE A RIPRAP SPLASH PAD AS SHOWN ABOVE EXCAVATE FOUNOAIiCN FOR THE SPLASH PAD A VINIMUM 5 FL WIDE. 1FT PEEP. AND 5 F1 LOI ON LEVEL GRACE- THE FINISHED SURFACE OF THE RIPRAP SHOULD BLEND WM SURF IXI NDING AREA, ALLOWING NO OVERALL THE AREA AROUND THE PAD MUST BE STABLE. 5. DIG A v-TRENCH IN ME LINE OF THE FENCE AS 5HDMN ABOVE_ B. AVOID JOINTS, PARTICULARLY AT LOW POINTS IN THE FENCE LINE. WHERE JOINTS ARE NECESSARY. FASTEN FABRIC SECURELY TO SUPPORT PG5T5 AND OVENLAP LU IHE NEXT POST. 7, TO REDUCE MAINTENANCE, EXCAVATE A SHALLOW SEDIMENT STORAGE AREA ON UPSLOPE SIDE OF FENCE WHERE SEDIMENTATION IS EXPECTED. PROVIDE GOOD ACCESS TO DEPOSITI9N AREAS FOR CLEANOUT AND MAINTENANCE. SILT FENCE FABRIC (3B MIN 7/rRIPRAP SPLASH J PAD SIDE VIEW City RfARh,,v&., NC �vlavna STO. NO. STANDARD TEMPORARY SILT FENCE WITH DATE DESCkiPTION and DerailR Manuak S dSpeciRcrtiona REINFORCED STABILIZED OUTLET I 7.01A MAINTENANCE NOTES: 1. ALL SILT FENCE SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2. TEARS IN THE FENCE, UNTRENCHED AREAS, OR OTHER FENCE FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. 3. SEDIMENT TRAPPED BEHIND SILT FENCE SHOULD BE CAREFULLY REMOVED ONCE DEPTH REACHES 6". nTemporary Silt Fence 6.6 Not to Scale 3 NO. 57 STONE OR EQUAL SIZE ONSITE STONE 1 0� CLASS B v a SIZE INSTALL AND MAINTAIN TWO TO THREE RIPRAP OR EQUAL� -- CHECK DAMS LOCATED AT (RIFFLE MATERIAL MAY BE USED) DOWNSTREAM LIMITS OF PROJECT. Plan View 2' MIN. SPILLWAY CREST NO. 57 STONE (OR EQUAL) 4 INCHES —4 (— WIDE ON UPSTREAM FACE FLOW CLASS B RIPRAP (OR ----VARIES WORK MAY t MAY �I 5' MIN. AREA FLOW VARY VARY Section A -A' NOTE: �i i i i �i i �i i i�� i i i i i i�i i i TOP OF BANK STREAM 1. INSTALL AS DIRECTED g'� WIDTH BELOW ACTIVE WORK 1 AREA TO CAPTURE CONTRACTOR SHALL REMOVE SEDIMENT. Profile View SEDIMENT WHEN DEPTH REACHES 9". MAINTENANCE NOTES: CLASS B RIPRAP (OR EQUAL) VARIES 20' 20' Plan View Cn Q Z z z vDz I-yz z 2mmm�S 1. ALL ROCK SILT CHECK DAMS SHOULD BE INSPECTED AT Section B-B' LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION TOE OF SLOPE WITHIN 24 HOURS. 3 Stockpiles and La down Area 2. ROCK SILT CHECK DAMS COLLAPSING, WATER BYPASSING ,1 THE DAMS, OR OTHER DAM FAILURES SHOULD BE 6.6 Not t0 Scale REPAIRED WITHIN 24 HOURS. Temporary Rock Silt Check Dams 3. SEDIMENT TRAPPED BEHIND ROCK SILT CHECK DAMS 4 g � r r SHOULD BE CAREFULLY REMOVED ONCE DEPTH REACHES 6.6 s 9„ Not to Scale o a o b WOODEN BRIDGE MAT(S) OPTIONAL SUPPORT LOG 12" 0 MIN. INSTALLATION NOTES: NOTES: 1. ALL EQUIPMENT MUST CROSS SEWER EASEMENTS AT LOCATIONS DESIGNATED IN THE EROSION AND SEDIMENT CONTROL PLAN WITH SEWER PROTECTION STONE IN PLACE. 2. REVISE/AUGMENT DETAIL AT DIRECTION OF MSD. 3. INSPECT DAILY AND MAINTAIN SECURE AND TO DIMENSIONS SPECIFIED. 4. ALTERNATIVES MUST BE APPROVED IN WRITING BY MSD. WATER DIVERSION CHANNEL �-� 5' (TYP) .TER FABRIC B STONE 1. CONSTRUCT STREAM CROSSING WHEN FLOW IS AT OR BELOW NORMAL BASEFLOW. 2. BRIDGE MATS SHALL BE PLACED FROM ABOVE RATHER THAN DRAGGED INTO PLACE. 3. MINIMIZE CLEARING AND EXCAVATION OF STREAMBANKS. DO NOT EXCAVATE CHANNEL BOTTOM. 4. INSTALL STREAM CROSSING PERPENDICULAR TO THE FLOW. 5. MAINTAIN CROSSING SO THAT RUNOFF IN THE CONSTRUCTION ROAD DOES NOT ENTER CHANNEL. SMALL DIVERSION CHANNELS, ADDITIONAL ROCK, OR STRAW/COIR WATTLES MAY BE REQUIRED. INSTALL AS DIRECTED. 6. STABILIZE AN ACCESS RAMP OF CLASS B STONE TO THE EDGE OF THE MUD MAT. 7. CONTRACTOR SHALL DETERMINE APPROPRIATE RAMP ANGLE ACCORDING TO EQUIPMENT USED. 8. PLUG GAPS BETWEEN MATS WITH FILTER FABRIC TO PREVENT LOSS OF SOIL THROUGH GAPS. 9. ADDRESS STEEP TRANSITIONS TO THE CROSSING THAT PRESENT AN EROSION OR SEDIMENTATION RISK WITH APPROPRIATE COUNTERMEASURES SUCH AS STONE OR END OF DAY COVER OR SEDIMENT BARRIER APPLICATIONS. MAINTENANCE NOTES: 1. ALL TEMPORARY STREAM CROSSINGS SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2. IF EXCESSIVE SEDIMENT IS BEING TRACKED ON TOP OF MATS THEN REMOVE WITH SHOVEL AND DISPOSE OF PROPERLY. 3. TERRACE SLOPES ENTERING AND EXITING FROM CROSSINGS MUST BE WELL MAINTAINED. DIVERT SURFACE RUNOFF AWAY FROM CROSSINGS, APPLY WATTLES ATTHE END OF EACH DAY WHEN RAIN IS ANTICIPATED, APPLY SURFACE STONE AS NECESSARY. n Temporary Stream Crossing - Bridge Mat 6-7 Not to Scale TRACK IN. +2' R SIDE n1-- v;,..., BALLAST STONE, WITH 12" MINIMUM DEPTH AT CENTER LINE OF EASEMENT (9" AVG) Z vI w Profile View Utility Crossing Protection 6,7IN of to Scale R PIPE TYPE 2 NON WOVEN FABRIC SECURED TO GROUND I MATERIAL SPECIFICATIONS PHYSICAL PROPERTY TESTS REQUIREMENTS MATERIAL N/A POLYETHYLENE RECOMENDED COLOR N/A "INTERNATIONAL ORANGE" TENSILE YIELD ASTM D638 AVE. 2000 LBS. PER 4' WIDE ULTIMATE TENSILE STRENGTH ASTM D638 AVE. 2900 LBS. PER 4' WIDE ELONGATION AT BREAK I%) ASTM D638 GREATER THAN 1000% CHEMICAL RESISTANCE N/A INERT TO MOST CHEMICALS AND ACIDS 6' MAX. WITH WIRE ATTACH SAFETY FENCE TO METAL POSTS USING METAL WIRE TIES ORANGE SAFETY n FENCE F- "T" OR "U" POST DRIVEN MINIMUM OF 18" INTO GROUND NOTES: 1. THIS ENTRANCE APPLIES ONLY TO ENTRANCES FOR COMMERCIAL SITES. 2. FIRST 5' mI DRAIN AWAY FROM THE STREET (MIN Y4' PER 1' FALL) J. FLOW FROM PRGJECT SHALL NOT ENTER THE PUBLIC STREET_ 4. FABRIC MAY BE ADDED UNDER T11F STONE WHICH WOULD ADD TOTAL LIFE TO THE CONSTRVCTICN ENTRANCE. MAINTENANCE NOTES: 1. ALL CONSTRUCTION ENTRANCES SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2. EXCESSIVE AMOUNTS OF SEDIMENT SHOULD BE REMOVED FROM THE CONSTRUCTION ENTRANCE IMMEDIATELY. 3. ANY SEDIMENT TRACKED ONTO PUBLIC ROADS SHOULD BE CLEANED IMMEDIATELY AND THE SOURCE OF THE SEDIMENT ADDRESSED. EXISTING ROADWAY—\ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ z Safe Fence 6.7 Not to Scale MAY VARY 4' MIN. 18" MIN. l iw ii �w 4.• ''� w s •i � +•• 'i w` 4 Y PROTECT CURB WITH ASPHALT AND REPAIR ANY DAMAGE PLAN NEW CONSTRUCTION — 6" µIN. CROSS SECTION City of Asheviue, NC COMMERCIAL sTq. NC :.Landard5peci6cations and I)eisils Manual CONSTRUCTION ENTRANCE 7.03 a Construction Entrance 6-7 Not to Scale Cn Q z O Z M Z z viz az F GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCG01 CONSTRUCTION GENERAL PERMIT Implementing the details and specifications on this Ian sheet will result in the construction p g p p activity being considered compliant with the Ground Stabilization and Materials Handling sections of the NCG01 Construction General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment Control plan approved by the delegated authority having jurisdiction. All details and specifications shown on this sheet may not apply depending on site conditions and the delegated authority having jurisdiction. Required Ground Stabilization Timeframes Stabilize within this Site Area Description many calendar Timeframe variations days after ceasing land disturbance (a) Perimeter dikes, swales, ditches, and 7 None perimeter slopes (b) High Quality Water 7 None (HQW) Zones (c) Slopes steeper than If slopes are 10' or less in length and are 3:1 7 not steeper than 2:1, 14 days are allowed -7 days for slopes greater than 50' in length and with slopes steeper than 4:1 -7 days for perimeter dikes, swales, (d) Slopes 3:1 to 4:1 14 ditches, perimeter slopes and HOW Zones -10 days for Falls Lake Watershed -7 days for perimeter dikes, swales, (e) Areas with slopes ditches, perimeter slopes and HOW Zones flatter than 4:1 14 -10 days for Falls Lake Watershed unless there is zero slope Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall be converted to permanent ground stabilization as soon as practicable but in no case longer than 90 calendar days after the last land disturbing activity. Temporary ground stabilization shall be maintained in a manner to render the GROUND STABILIZATION SPECIFICATION Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the techniques in the table below: Temporary Stabilization Permanent Stabilization • Temporary grass seed covered with straw or • Permanent grass seed covered with straw or other mulches and tackifiers other mulches and tackifiers • Hydroseeding • Geotextile fabrics such as permanent soil • Rolled erosion control products with or reinforcement matting without temporary grass seed • Hydroseeding • Appropriately applied straw or other mulch • Shrubs or other permanent plantings covered • Plastic sheeting with mulch • Uniform and evenly distributed ground cover sufficient to restrain erosion • Structural methods such as concrete, asphalt or retaining walls • Rolled erosion control products with grass seed POLYACRYLAMIDES (PAMS) AND FLOCCULANTS 1. Select flocculants that are appropriate for the soils being exposed during construction, selecting from the NCDWRList ofApproved PAMS/F/occu/ants. 2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. 3. Apply flocculants at the concentrations specified in the NCDWRList ofApproved PAMS/Flocculants and in accordance with the manufacturer's instructions. 4. Provide ponding area for containment of treated Stormwater before discharging offsite. 5. Store flocculants in leak -proof containers that are kept under storm -resistant cover or surrounded by secondary containment structures. EQUIPMENT AND VEHICLE MAINTENANCE 1. Maintain vehicles and equipment to prevent discharge of fluids. 2. Provide drip pans under any stored equipment. 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project. 4. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle when possible). 5. Remove leaking vehicles and construction equipment from service until the problem has been corrected. 6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products to a recycling or disposal center that handles these materials. BUILDING MATERIAL AND LAND CLEARING WASTE 1. Never bury or burn waste. Place litter and debris in approved waste containers. 2. Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to contain construction and domestic wastes. 3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 4. Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and does not drain directly to a storm drain, stream or wetland. 5. Cover waste containers at the end of each workday and before storm events or provide secondary containment. Repair or replace damaged waste containers. 6. Anchor all lightweight items in waste containers during times of high winds. 7. Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow. 8. Dispose waste off -site at an approved disposal facility. 9. On business days, clean up and dispose of waste in designated waste containers. PAINT AND OTHER LIQUID WASTE 1. Do not dump paint and other liquid waste into storm drains, streams or wetlands. 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 3. Contain liquid wastes in a controlled area. 4. Containment must be labeled, sized and placed appropriately for the needs of site 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites. PORTABLE TOILETS 1. Install portable toilets on level ground, at least 50 feet away from storm drains, streams or wetlands unless there is no alternative reasonably available. If 50 foot offset is not attainable, provide relocation of portable toilet behind silt fence or place on a gravel pad and surround with sand bags. 2. Provide staking or anchoring of portable toilets during periods of high winds or in high foot traffic areas. 3. Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace with properly operating unit. EARTHEN STOCKPILE MANAGEMENT 1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls and surface waters unless it can be shown no other alternatives are reasonably available. 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe of stockpile. 3. Provide stable stone access point when feasible. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance with the approved plan and any additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage techniques that will restrain accelerated erosion on disturbed soils for temporary or permanent control needs. ONSITE CONCRETE WASHOUT STRUCTURF WITH LINER A 0PWNWo � J.0 VC 0 �IM 1 1 xomo oM4 �t 'itsa wJ SEC -A A -A PLAN x,,.<m xxx„� xonx6 0 0 �o � 0 o 0 0 s 0 0 0 0 � s[cnou a-e B c wa xu� aAn�x of AN x -INN.) =`NTax xo =J W7 ,z ABOVE GRADE mASHOUT STRUCTURE CONCRETE WASHOUTS 1. Do not discharge concrete or cement slurry from the site. 2. Dispose of, or recycle settled, hardened concrete residue in accordance with local and state solid waste regulations and at an approved facility. 3. Manage washout from mortar mixers in accordance with the above item and in addition place the mixer and associated materials on impervious barrier and within lot perimeter silt fence. 4. Install temporary concrete washouts per local requirements, where applicable. If an alternate method or product is to be used, contact your approval authority for review and approval. If local standard details are not available, use one of the two types of temporary concrete washouts provided on this detail. 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk sections. Stormwater accumulated within the washout may not be pumped into or discharged to the storm drain system or receiving surface waters. Liquid waste must be pumped out and removed from project. 6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it can be shown that no other alternatives are reasonably available. At a minimum, install protection of storm drain inlet(s) closest to the washout which could receive spills or overflow. 7. Locate washouts in an easily accessible area, on level ground and install a stone entrance pad in front of the washout. Additional controls may be required by the approving authority. 8. Install at least one sign directing concrete trucks to the washout within the project limits. Post signage on the washout itself to identify this location. 9. Remove leavings from the washout when at approximately 75% capacity to limit overflow events. Replace the tarp, sand bags or other temporary structural components when no longer functional. When utilizing alternative or proprietary products, follow manufacturer's instructions. 10. At the completion of the concrete work, remove remaining leavings and dispose of in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance caused by removal of washout. HERBICIDES, PESTICIDES AND RODENTICIDES 1. Store and apply herbicides, pesticides and rodenticides in accordance with label restrictions. 2. Store herbicides, pesticides and rodenticides in their original containers with the label, which lists directions for use, ingredients and first aid steps in case of accidental poisoning. 3. Do not store herbicides, pesticides and rodenticides in areas where flooding is possible or where they may spill or leak into wells, stormwater drains, ground water or surface water. If a spill occurs, clean area immediately. 4. Do not stockpile these materials onsite. HAZARDOUS AND TOXIC WASTE 1. Create designated hazardous waste collection areas on -site. 2. Place hazardous waste containers under cover or in secondary containment. 3. Do not store hazardous chemicals, drums or bagged materials directly on the ground. NCGOI GROUND STABILIZATION AND MATERIALS HANDLING I EFFECTIVE: 04/01/191 Le U z O U Q) O IJ U0 m a) v o Q PC 0 PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION A: SELF -INSPECTION Self -inspections are required during normal business hours in accordance with the table below. When adverse weather or site conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. In addition, when a storm event of equal to or greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be performed upon the commencement of the next business day. Anytime when inspections were delayed shall be noted in the Inspection Record. Frequency Inspect (during normal Inspection records must include: business hours) (1) Rain gauge Daily Daily rainfall amounts. maintained in If no daily rain gauge observations are made during weekend or good working holiday periods, and no individual -day rainfall information is order available, record the cumulative rain measurement for those un- attended days (and this will determine if a site inspection is needed). Days on which no rainfall occurred shall be recorded as "zero." The permittee may use another rain -monitoring device approved by the Division. (2) E&SC At least once per 1. Identification of the measures inspected, Measures 7 calendar days 2. Date and time of the inspection, and within 24 3. Name of the person performing the inspection, hours of a rain 4. Indication of whether the measures were operating event> 1.0 inch in properly, 24 hours 5. Description of maintenance needs for the measure, 6. Description, evidence, and date of corrective actions taken. (3) Stormwater At least once per 1. Identification of the discharge outfalls inspected, discharge 7 calendar days 2. Date and time of the inspection, outfalls (SDOs) and within 24 3. Name of the person performing the inspection, hours of a rain 4. Evidence of indicators of stormwater pollution such as oil event> 1.0 inch in sheen, floating or suspended solids or discoloration, 24 hours 5. Indication of visible sediment leaving the site, 6. Description, evidence, and date of corrective actions taken. (4) Perimeter of At least once per If visible sedimentation is found outside site limits, then a record site 7 calendar days of the following shall be made: and within 24 1. Actions taken to cleanup or stabilize the sediment that has left hours of a rain the site limits, event> 1.0 inch in 2. Description, evidence, and date of corrective actions taken, and 24 hours 3. An explanation as to the actions taken to control future releases. (5) Streams or At least once per lithe stream or wetland has increased visible sedimentation or a wetlands onsite 7 calendar days stream has visible increased turbidity from the construction or offs ite and within 24 activity, then a record of the following shall be made: (where hours of a rain 1. Description, evidence and date of corrective actions taken, and accessible) event > 1.0 inch in 2. Records of the required reports to the appropriate Division 24 hours Regional Office per Part III, Section C, Item (2)(a) ofthis permit. (6) Ground After each phase 1. The phase of grading (installation of perimeter E&SC stabilization of grading measures, clearing and grubbing, installation of storm measures drainage facilities, completion ofall land -disturbing activity, construction or redevelopment, permanent ground cover). 2. Documentation that the required ground stabilization measures have been provided within the required timeframe or an assurance that they will be provided as soon as possible. NOTE: The rain inspection resets the required 7 calendar day inspection requirement. PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION B: RECORDKEEPING 1. E&SC Plan Documentation The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The following items pertaining to the E&SC plan shall be kept on site and available for inspection at all times during normal business hours. Item to Document Documentation Requirements (a) Each E&SC measure has been installed Initial and date each E&SC measure on a copy and does not significantly deviate from the of the approved E&SC plan or complete, date locations, dimensions and relative elevations and sign an inspection report that lists each shown on the approved E&SC plan. E&SC measure shown on the approved E&SC plan. This documentation is required upon the initial installation of the E&SC measures or if the E&SC measures are modified after initial installation. (b) A phase of grading has been completed. Initial and date a copy of the approved E&SC plan or complete, date and sign an inspection report to indicate completion of the construction phase. (c) Ground cover is located and installed Initial and date a copy of the approved E&SC in accordance with the approved E&SC plan or complete, date and sign an inspection plan- report to indicate compliance with approved ground cover specifications. (d) The maintenance and repair Complete, date and sign an inspection report. requirements for all E&SC measures have been performed. (e) Corrective actions have been taken Initial and date a copy of the approved E&SC to E&SC measures. plan or complete, date and sign an inspection report to indicate the completion of the corrective action. 2. Additional Documentation to be Kept on Site In addition to the E&SC plan documents above, the following items shall be kept on the site and available for inspectors at all times during normal business hours, unless the Division provides a site -specific exemption based on unique site conditions that make this requirement not practical: (a) This General Permit as well as the Certificate of Coverage, after it is received. (b) Records of inspections made during the previous twelve months. The permittee shall record the required observations on the Inspection Record Form provided by the Division or a similar inspection form that includes all the required elements. Use of electronically -available records in lieu of the required paper copies will be allowed if shown to provide equal access and utility as the hard -copy records. 3. Documentation to be Retained for Three Years All data used to complete the a-NOI and all inspection records shall be maintained for a period of three years after project completion and made available upon request. [40 CFR 122.41] PART II, SECTION G, ITEM (4) DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather). Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met: (a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal shall not commence until the E&SC plan authority has approved these items, (b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit, (c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems, (d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above, (e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and (f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States. PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION C: REPORTING 1. Occurrences that Must be Reported Permittees shall report the following occurrences: (a) Visible sediment deposition in a stream or wetland. (b) Oil spills if: • They are 25 gallons or more, • They are less than 25 gallons but cannot be cleaned up within 24 hours, • They cause sheen on surface waters (regardless of volume), or • They are within 100 feet of surface waters (regardless of volume). (c) Releases of hazardous substances in excess of reportable quantities under Section 311 of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref: 40 CFR 302.4) or G.S. 143-215.85. (d) Anticipated bypasses and unanticipated bypasses. (e) Noncompliance with the conditions of this permit that may endanger health or the environment. 2. Reporting Timeframes and Other Requirements After a permittee becomes aware of an occurrence that must be reported, he shall contact the appropriate Division regional office within the timeframes and in accordance with the other requirements listed below. Occurrences outside normal business hours may also be reported to the Department's Environmental Emergency Center personnel at (800) 858-0368. Occurrence Reporting Timeframes (After Discovery) and Other Requirements (a) Visible sediment • Within 24 hours, an oral or electronic notification. deposition in a . Within 7 calendar days, a report that contains a description of the stream or wetland sediment and actions taken to address the cause of the deposition. Division staff may waive the requirement fora written report on a case -by -case basis. • If the stream is named on the NC 303(d) list as impaired for sediment - related causes, the permittee may be required to perform additional monitoring, inspections or apply more stringent practices if staff determine that additional requirements are needed to assure compliance with the federal or state impaired -waters conditions. (b) Oil spills and • Within 24 hours, an oral or electronic notification. The notification release of shall include information about the date, time, nature, volume and hazardous location of the spill or release. substances per Item 1(b)-(c) above (c) Anticipated • A report at least ten days before the date of the bypass, if possible. bypasses [40 CFR The report shall include an evaluation of the anticipated quality and 122.41(m)(3)] effect of the bypass. (d) Unanticipated • Within 24 hours, an oral or electronic notification. bypasses [40 CFR • Within 7 calendar days, a report that includes an evaluation of the 122.41(m)(3)] quality and effect of the bypass. (e) Noncompliance • Within 24 hours, an oral or electronic notification. with the conditions • Within 7 calendar days, a report that contains a description of the of this permit that noncompliance, and its causes; the period of noncompliance, may endanger including exact dates and times, and if the noncompliance has not health or the been corrected, the anticipated time noncompliance is expected to environment[40 continue; and steps taken or planned to reduce, eliminate, and CFR 122.41(1)(7)] prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6). • Division staff may waive the requirement fora written report on a case -by -case basis. NCGO 1 SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19 1 U z O U Q) O U