SW6240705_Plansheet - Notes_20241029

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GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH ONSITE CONCRETE WASHOUT
SANDBAGS
THE NCG01 CONSTRUCTION GENERAL PERMIT STRUCTURE WITH LINER ORSTTAP ESQ)
EQUIPMENT AND VEHICLE MAINTENANCE PLLA MIL
PSTIC LINING COHESIVE&
Implementing the details and specifications on this plan sheet will result in the construction 10 MIL 1:1 SIDE SLOPE LOW COHESIVE
&ION
1. Maintain vehicles and equipment to prevent discharge of fluids. SILT PLASTIG SANDBAGS(TYP.) ANCHOR (TMP> SOIL BERM
SIDE SLOP LINING
FENCE OR STAPES TRENCH FOR
activity being considered compliant with the GroundStabilization an Materials Handling ( 10 MIL
sections of the NCG01 Construction General Permit Sections E and F res ectivel The 2. Provide drip pans under any stored equipment. � ���
( p y) CLEARLY MARKED 3'MIN 2
permittee shall comply with the Erosion and Sediment Control plan approved by the 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the 3'MIN CONCRETEI WgSHOUT SIGNAGE NOTING DEVICE SECTION B-B
rO eCt. (18"X24" MIN.)
delegated authority having jurisdiction. All details and specifications shown on this sheet p SECTION A-A
0•
HIGH may not apply depending on site conditions and the delegated authority having jurisdiction. 4. Collect all spent fluids, store in separate containers and properly dispose as COHESIVEA�ON MIN B D
Y ppY p g g Y gJ A
hazardous waste (recycle when possible). o 0 0 o SOIL BERM 0 o 0 0 T
SANDBAGS (TYP.) it
0 o OR STAPLES
SECTION E: GROUND STABILIZATION 5. Remove leaking vehicles and construction equipment from service until the problem 0 OE
0 -2
has been corrected. 0 0 0 0
Required Ground Stabilization Timeframes o 0 0 0
Stabilize within this 6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products k..B
to a recycling or disposal center that handles these materials. OR"seAPEAGS S�)
Site Area Description many calendar Timeframe variations PLAN PLAN
days after ceasing 1. ACTUAL LOCATION DETERMINED IN FIELD. 1. ACTUAL LOCATION DETERMINED IN FIELD.
land disturbance 2. THE WHEN
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE THE LIQUID AND/OR SOLID REACHES 75% OFCRETE WASHOUT STRUCTURES g THE LL BSTRUCTURES CAPACITY. THE LIQUNED WHEN 2. THE ID AND/OR SOLID REACHESCRETE WASHOUT 75%5% OF THE RES SHALL BSTRUCTURIESDCAPACITY
TO PROVIDE ADEQUATE HOLDING CAPACITY WITH A MINIMUM 12 INCHES
(a) Perimeter dikes, 1. Never bur or burn waste. Place litter and debris in a rOVed Waste containers. ICONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY MARKED WITH OF FREEBOARD.
Y approved SIGNAGE NOTING DEVICE.
swales, ditches, and 7 None 3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY MARKED WITH
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash SIGNAGE NOTING DEVICE.
perimeter slopes receptacle) on site to contain construction and domestic wastes. BELOW GRADE WASHOUT STRUCTURE ABOVE GRADE WASHOUT STRUCTURE
NOT TO SCALE NOT TO SCALE
(b) High Quality Water 7 None 3. Locate waste containers at least 50 feet away from storm drain inlets and surface
(HQW) Zones waters unless no other alternatives are reasonably available. CONCRETE WASHOUTS
(c) Slopes steeper than If slopes are 10' or less in length and are 4. Locate waste containers on areas that do not receive substantial amounts of runoff 1. Do not discharge concrete or cement slurry from the site.
3:1 7 not steeper than 2:1, 14 days are from upland areas and does not drain directly to a storm drain, stream or wetland.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
allowed 5. Cover waste containers at the end of each workday and before storm events or and state solid waste regulations and at an approved facility.
-7 days for slopes greater than 50' in provide secondary containment. Repair or replace damaged waste containers.
length and with slopes steeper than 4:1 6. Anchor all lightweight items in waste containers during times of high winds. 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 C
-7 days for perimeter dikes, swales, 7. Empty waste containers as needed to prevent overflow. Clean up immediately if lot perimeter silt fence.
(d) Slopes 3:1 to 4:1 14 ditches, perimeter slopes and HQW containers overflow.
Zones 4. Install temporary concrete washouts per local requirements, where applicable. If an
8. Dispose waste off-site at an approved disposal facility. alternate method or product is to be used, contact your approval authority for
-10 days for Falls Lake Watershed 9. On business days, clean up and dispose of waste in designated waste containers. review and approval. If local standard details are not available, use one of the two
-7 days for perimeter dikes, swales, types of temporary concrete washouts provided on this detail.
(e) Areas with slopes ditches, perimeter slopes and HQW Zones PAINT AND OTHER LIQUID WASTE 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
flatter than 4:1 14 -10 days for Falls Lake Watershed unless 1. Do not dump paint and other liquid waste into storm drains, streams or wetlands. sections. Stormwater accumulated within the washout may not be pumped into or
there is zero slope 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface discharged to the storm drain system or receiving surface waters. Liquid waste must
Note: After the permanent cessation of construction activities, any areas with temporary waters unless no other alternatives are reasonably available. be pumped out and removed from project.
ground stabilization shall be converted to permanent ground stabilization as soon as 3. Contain liquid wastes in a controlled area. 6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
practicable but in no case longer than 90 calendar days after the last land disturbing 4. Containment must be labeled, sized and placed appropriately for the needs of site. can be shown that no other alternatives are reasonably available. At a minimum,
activity. Temporary ground stabilization shall be maintained in a manner to render the 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from install protection of storm drain inlet(s) closest to the washout which could receive
ills or overflow.
surface stable against accelerated erosion until permanent ground stabilization is achieved. construction sites. spills
7. Locate washouts in an easily accessible area, on level ground and install a stone
GROUND STABILIZATION SPECIFICATION PORTABLE TOILETS entrance pad in front of the washout. Additional controls may be required by the
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the in the table below: approving authority.
techniques1. 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 8. Install at least one sign directing concrete trucks to the washout within the project
Temporary Stabilization Permanent Stabilization offset is not attainable, provide relocation of portable toilet behind silt fence or place limits. Post signage on the washout itself to identify this location.
• Temporary grass seed covered with straw or • Permanent grass seed covered with straw or on a gravel pad and surround with sand bags. 9. Remove leavings from the washout when at approximately 75% Capacity to limit B
other mulches and tackifiers other mulches and tackifiers 2. Provide staking or anchoring of portable toilets during periods of high winds or in high overflow events. Replace the tarp, sand bags or other temporary structural
• Hydroseeding • Geotextile fabrics such as permanent soil foot traffic areas. components when no longer functional. When utilizing alternative or proprietary
• Rolled erosion control products with or reinforcement matting products, follow manufacturer's instructions.
without temporary grass seed • H droseedin 3. Monitor portable toilets for leaking and properly dispose of any leaked material.
y g 10. At the completion of the concrete work, remove remaining leavings and dispose of
• Appropriately a lied straw or other mulch • Shrubs or other permanent plantings covered Utilize a licensed sanitary waste hauler t0 remove leaking portable toilets and replace
pp p p g with properly operating unit. in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
• Plastic sheeting with mulch caused by removal of washout.
• Uniform and evenly distributed ground cover
sufficient to restrain erosion EARTHEN STOCKPILE MANAGEMENT
• Structural methods such as concrete, asphalt or 1. Show stockpile locations on plans. Locate earthen-material stockpile areas at least HERBICIDES, PESTICIDES AND RODENTICIDES
retaining walls 1. Store and apply herbicides pesticides and rodenticides in accordance with label
• Rolled erosion control products with grass seed 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls pp Y �
p g and surface waters unless it can be shown no other alternatives are reasonably restrictions.
available. 2. Store herbicides, pesticides and rodenticides in their original containers with the
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of label, which lists directions for use, ingredients and first aid steps in case of
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS five feet from the toe of stockpile. accidental poisoning.
1. Select flocculants that are appropriate for the soils being exposed during 3. Provide stable stone access point when feasible. 3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
construction, selecting from the NC DWR List of Approved PAMS/Flocculants. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance possible or where they may spill or leak into wells, stormwater drains, ground water
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. with the approved plan and any additional requirements. Soil stabilization is defined or surface water. If a spill occurs, clean area immediately.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved as vegetative, physical or chemical coverage techniques that will restrain accelerated 4. Do not stockpile these materials onsite.
PAMS/Flocculants and in accordance with the manufacturer's instructions. erosion on disturbed soils for temporary or permanent control needs. A
4. Provide ponding area for containment of treated Stormwater before discharging HAZARDOUS AND TOXIC WASTE
offsite. 1. Create designated hazardous waste collection areas on-site.
5. Store flocculants in leak-proof containers that are kept under storm-resistant cover 2. Place hazardous waste containers under cover or in secondary containment.
or surrounded by secondary containment structures. 3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
NCGO I GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE : 04/01 / 19
PROJECT MANAGER J. MURRAY, PE �ylt1111itd/ Harnett NCG01 GROUND STABILIZATION
PROJECT ENGINEER A. MCGREW, PE +� ti`" ,. z C> �/'
C o u N r Y AND MATERIALS HANDLING
HDR Engineering, Inc. of the Carolinas e, ` '�i
DRAWN BY A. MCGREW, PE
NORTH C.AROLINA
N.C.B.E.L.S. License Number: F-0116 (�
�V`(l :- strong rats • new growth
555 Fayetteville Street, Suite 900
D 05/2024 ISSUED FOR STORMWATER PERMIT APPLICATION HARN ETT COUNTY
. . �.. ;
F)lC 05/2024 ISSUED FOR BIDDING `' �,I ��
Raleigh, NC 27601 ;' :'' :;,<.° SHEET
919.232.6600 B 01/2023 REVISED BASED ON REVIEWER COMMENTS /��ij�':�` .1,-,\,', NORTHWEST CONVENIENCE CENTER 0 1" 2,, FILENAME OOG-03.dwg
A 10/2022 ISSUED FOR PERMITTING
ISSUE DATE DESCRIPTION PROJECT NUMBER 10354679 1 0'7�1) I Zq SCALE - 00G-03
HARNETT COUNTY NORTH CAROLINA