SW1210503_Plansheet - Notes_20210730

1 . CONTRACTOR SHALL CONTACT UNDERGROUND UTILITY LOCATE SERVICES - 81 1- AT LEAST 48 HOURS PRIOR TO
COMMENCEMENT OF CONSTRUCTION. CONTRACTOR SHALL VERIFY LOCATION OF EXISTING UTILITIES PRIOR TO
BEGINNING CONSTRUCTION ON SITE.
GENERAL NOTES:
1 . NO WORK SHALL BEGIN PRIOR TO THE APPROVAL AND SIGNATURE OF THE PERMITTING AGENCY'S ENGINEER.
ALL WORK SHALL BE DONE IN ACCORDANCE WITH THE PERMITTING AGENCY'S APPROVED AND SIGNED PLANS.
2. ALL CONSTRUCTION AND MATERIALS SHALL CONFORM TO THE LATEST EDITION OF THE NCDEQ EROSION AND
SEDIMENT CONTROL PLANNING DESIGN MANUAL, UNLESS SHOWN OTHERWISE AS WELL AS DUKE'S
CONSTRUCTION STORMWATER MANUAL (MAY 2017).
3. A PRE -CONSTRUCTION MEETING WITH THE COUNTY, OTHER AFFILIATED STAFF, MATERIAL TESTING LA)B,
CONSULTANTS, AND DEVELOPER SHALL BE SCHEDULED AT LEAST 2 WORKING DAYS PRIOR TO CONSTRUCTION.
CONTACT THE ASHEVILLE REGIONAL OFFICE OF NCDEQ AT (828) 296 - 4500 FOR A PRE -CONSTRUCTION
CONFERENCE.
4. CONTRACTOR SHALL COORDINATE OPERATIONS WITH ALL REQUIRED MATERIALS TESTING SERVICE PER
MADISON COUNTY REQUIREMENTS.
5. PRIOR TO COMMENCEMENT OF WORK, UTILITY COMPANIES INVOLVED IN THE DEVELOPMENT OF THIS SITE SHALL
BE CONTACTED.
6. ALL UTILITIES TO BE INSTALLED UNDER EXISTING PAVEMENT SHALL BE DIRECTIONALLY BORED.
7. ALL EXISTING SURVEY MONUMENTS AND/OR OTHER SURVEY MARKERS SHALL BE PROTECTED BY THE
CONTRACTOR. MONUMENTS OR MARKERS DAMAGED DURING CONSTRUCTION SHALL BE REPLACED BY A
LICENSED SURVEYOR AT THE CONTRACTOR'S EXPENSE.
8. IF NEEDED, THE CONTRACTOR SHALL SET SURVEY MONUMENTS AT LOCATIONS SPECIFIED BY THE ENGINEER
PRIOR TO THE REQUEST OF COUNTY ACCEPTANCE OF IMPROVEMENTS. MONUMENTS SHALL BEAR THE LICENSE
NUMBER OF THE SURVEYOR.
9. ALL APPLICABLE SAFETY LAWS OF ALL JURISDICTIONAL BODIES SHALL BE ADHERED TO BY THE CONTRACTOR.
ALL TRAFFIC CONTROL, AND ASSOCIATED SAFETY DEVICES ON AND AROUND THE CONSTRUCTION SITE SHALL
BE THE RESPONSIBILITY OF THE CONTRACTOR. ANY TRENCH EXCAVATION GREATER THAN 5 FEET IN DEPTH
SHALL REQUIRE A PERMIT FROM THE NORTH CAROLINA INDUSTRIAL COMMISSION WHICH SHALL BE OBTAINED
BY THE CONTRACTOR.
10. TRAFFIC CONTROL AND PUBLIC SAFETY SHALL BE PROVIDED IN ACCORDANCE WITH THE MANUAL ON UNIFORM
TRAFFIC CONTROL DEVICES (MUTCD) OR AS DIRECTED BY THE COUNTY. LANE CLOSURES, IF NECESSARY,
SHALL BE APPROVED BY THE COUNTY PRIOR TO THE IMPLEMENTATION OF ANY LANE CLOSURES.
11. THE CONTRACTOR SHALL BE REQUIRED TO ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB SITE
CONDITIONS DURING THE COURSE OF CONSTRUCTION IN ACCORDANCE WITH GENERALLY ACCEPTED
CONSTRUCTION PRACTICES. THIS SHALL INCLUDE THE CONTINUOUS SAFETY OF ALL PERSONS AND PROPERTY
AND NOT LIMITED TO NORMAL WORKING HOURS. THE CONTRACTOR SHALL AGREE TO INDEMNIFY AND HOLD THE
TOWN OF HOT SPRINGS AND MADISON COUNTY EMPLOYEES, AGENTS OR ANY OTHER AFFILIATED PERSONNEL
FROM ANY AND ALL LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF THE WORK FOR
THIS PROJECT.
12. 'NO GRADE" AREAS SHALL BE CLEARLY DELINEATED IN THE FIELD PRIOR TO CONSTRUCTION AND IT SHALL BE
THE CONTRACTOR'S RESPONSIBILITY TO ADHERE TO THESE LIMITS WHILE CONDUCTING OPERATIONS.
13. ALL CONSTRUCTION AND MATERIAL DELIVERY VEHICLES SHALL USE DESIGNATED ACCESS AND HAUL ROUTES.
THE ROUTES SHALL BE CONTINUOUSLY MONITORED FOR ANY DAMAGE AND DEBRIS.
14. BASED ON FINAL JURISDICTIONAL STREAM AND WETLAND DELINEATIONS AND ASSOCIATED SETBACK/BUFFER
REQUIREMENTS, DESIGN DOCUMENTS ARE SUBJECT TO CHANGE.
GRADING NOTES:
2.
3.
4.
5.
THE GEOTECHNICAL INVESTIGATION/REPORT SHALL BE CONSIDERED PART OF THESE PLANS IF APPLICABLE
THE RECOMMENDATIONS AND SPECIFICATIONS CONTAINED WITHIN THE GEOTECHNICAL REPORT SHALL BE
ADHERED TO FOR ALL GRADING ACTIVITIES.
THE GEOTECHNICAL ENGINEER SHALL SUPERVISE ALL GRADING ACTIVITIES IF APPLICABLE. FILL AREAS AND THE
PREPARATION OF FILL SHALL BE IN ACCORDANCE WITH THE RECOMMENDED GRADING SPECIFICATIONS AND
SPECIAL PROVISIONS INCLUDED IN THE GEOTECHNICAL INVESTIGATION.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR PLACEMENT, SPREAD, WATER CONTENT, COMPACTION OF FILL
IN ACCORDANCE WITH THE
SPECIFICATIONS OF THE GEOTECHNICAL INVESTIGATION.
TO ENSURE FILL HAS BEEN CONSTRUCTED IN ACCORDANCE WITH THE GEOTECHNICAL SPECIFICATIONS,
OBSERVATION AND COMPACTION TESTS SHALL BE PERFORMED BY THE GEOTECHNICAL ENGINEER WHILE THE
FILLING AND COMPACTION OPERATIONS ARE BEING PERFORMED.
PLANS SHALL BE REVISED PER THE SPECIFICATIONS OF THE GEOTECHNICAL INVESTIGATION. IF ANY CONFLICTS
BETWEEN THE PLANS AND THE GEOTECHNICAL INVESTIGATION SPECIFICATIONS EXIST, THE SPECIFICATIONS
FROM THE GEOTECHNICAL ENGINEER SHALL GOVERN.
6. PERTINENT UTILITY COMPANIES SHALL BE INFORMED OF ALL GRADING OPERATIONS PRIOR TO ANY UTILITY
ADJUSTMENTS REQUIRED BY GRADING ACTIVITIES.
DUST CONTROL:
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2. TRUCKS TRANSPORTING SOILS, SANDS OR OTHER LOOSE MATERIALS SHALL BE EFFECTIVELY COVERED TO
PREVENT DUST POLLUTION.
3. ALL PUBLIC ROAD SHALL BE SWEPT AND MAINTAINED TO REMOVE ANY DUST OR OTHER LITTER CAUSED By
CONSTRUCTION ACTIVITIES DAILY OR AS DEEMED NECESSARY BY THE CLIENT, INSPECTOR OR LOCAL PUBLIC
WORKS.
DEMOLITION NOTES:
1 .
2.
3.
4.
5.
6.
7
8
9
NO DEMOLITION, TREE CLEARING, OR GRUBBING SHALL BE PERMITTED UNTIL EROSION AND SEDIMENT CONTROL
DEVICES HAVE BEEN INSTALLED.
THE REMOVAL OR DISPOSAL OF HAZARDOUS WASTE SHALL BE DONE IN COMPLIANCE WITH THE GENERAL AND
STATE REQUIREMENTS.
BACKFILL SHALL BE DONE PER THE GEOTECHNICAL ENGINEER'S RECOMMENDATIONS.
CONTRACTOR SHALL INSTALL EROSION CONTROL MEASURES PER THE EROSION AND SEDIMENTATION CONTROL
PLAN PRIOR TO BEGINNING DEMOLITION ACTIVITIES.
ALL SAFETY DEVICES SHALL BE MAINTAINED BY THE CONTRACTOR, AND SHALL ADHERE TO ALL LOCAL, STATE,
AND FEDERAL SAFETY AND HEALTH STANDARDS LAWS AND REGULATIONS.
ALL EXISTING FACILITIES AND/OR STRUCTURES TO REMAIN SHALL BE PROTECTED BY THE CONTRACTOR. ANY
DAMAGES CAUSED BY THE CONTRACTOR OR AFFILIATES OR ANY ITEMS REMOVED SHALL BE REPLACED IN
EQUAL OR BETTER CONDITION AS APPROVED BY THE OWNER OR OWNER'S REPRESENTATIVE.
FOR UTILITY SHUT-DOWN/DISCONNECT LOCATIONS, COORDINATE WITH ELECTRICAL, MECHANICAL,
LANDSCAPING, CIVIL, AND ARCHITECTURAL DRAWINGS. CONTRACTOR SHALL COORDINATE SERVICE
INTERRUPTIONS WITH THE CLIENT. ADJACENT OFF -SITE PROPERTY OWNERS SERVICES SHALL NOT BE
INTERRUPTED.
THE INTENT OF THESE PLANS IS TO SHOW THE BOUNDARIES OF THE AREA WHERE WORKWILL BE PERFORMED
EXISTING FEATURES TAKEN FROM A FIELD SURVEY AND AVAILABLE INFORMATION ARE SHOWN ON THIS PLAN.
THIS PLAN IS NOT INTENDED TO BE A COMPLETE DEPICTION OF ALL EXISTING STRUCTURES AND/OR UTILITIES.
THE CONTRACTOR SHALL PERFORM ATHOROUGH FIELD INVESTIGATION AND SITE REVIEWWITHIN THE LIMIT OF
WORK SHOWN IN THIS PLAN SET TO DETERMINE THE QUANTITY, TYPE, AND EXTENT OF ANY AND ALL ITEMS.
DETERMINING THE EXTENT OF EXISTING STRUCTURES AND/OR UTILITIES AND QUANTITIES OF WORK INVOLVED IN
REMOVING THESE ITEMS FOR THE SITE SHALL BE THE SOLE RESPONSIBILITY OF THE CONTRACTOR.
EROSION AND SEDIMENTATION NOTES:
1.
2.
3.
4.
5.
11
A
THE EROSION CONTROL PLAN PROVIDED PARAMETERS ARE ASSUMED TO BE SCHEMATIC MINIMUM
REQUIREMENTS. THE CONTRACTOR SHALL DETERMINE THE FULL EXTENTS REQUIRED. CONTRACTOR SHALL BE
RESPONSIBLE FOR THE EXACT DESIGN AND THE REQUIRED EXTENT OF THE EROSION CONTROL SYSTEMS.
THE CONTRACTOR SHALL INSPECT AND REPAIR EROSION CONTROL FACILITIES AS NECESSARY AT THE END OF
EACH WORK DAY DURING THE RAINY SEASON AND PRIOR TO ANTICIPATED STORMS. NECESSARY REPAIRS
SHALL BE DONE IMMEDIATELY ONCE DISCOVERED.
AT THE END OF EACH STORM, MEASURES BY THE CONTRACTOR SHALL BE TAKEN TO REMOVE ACCUMULATION
OF SILT AND/OR DEBRIS FROM THE EROSION CONTROL DEVICES AND SHALL CLEAR ANY DEBRIS OR BLOCKAGE
FROM OUTLETS.
ALL DEWATERING OPERATIONS MUST BE DISCHARGED INTO ADEQUATE STILLING BASINS TO PREVENT
DISCHARGE OF SEDIMENT AND TO PROTECT WATER QUALITY STANDARDS.
A NOTICE OF INTENT (NOI) IS REQUIRED PRIOR TO ANY CLEARING, GRADING, OR EXCAVATION. THE
CONTRACTOR SHALL VERIFY THE CLIENT AS SUBMITTED THE NOI TO THE NORTH CAROLINA DEPARTMENT OF
ENVIRONMENTAL QUALITY (NCDEQ). THE CONTRACTOR SHALL MAINTAIN A COPY OF THE NOI ON THE
CONSTRUCTION SITE AT ALL TIMES.
ALL EROSION CONTROL MATERIALS SHALL BE PROVIDED AND INSTALLED BY THE CONTRACTOR UNLESS
OTHERWISE SPECIFIED.
NCGO1 PERMIT:
PART 11 - STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
SECTION A: REQUIRED COMPONENTS OF THE SWPPP
1. LOCATION INFORMATION
1. 1. SEE SHEET PV1.0 FOR PROJECT LOCATION
1.2. NORTH ARROW AND SCALE HAVE BEEN PROVIDED ON ALL PLAN SHEETS.
1.3. THE PROJECT IS LOCATED IN THE FRENCH BROAD RIVER BASIN, RECEIVING WATER IS FRENCH BROAD
RIVER (B/SB).
1.4. LATITUDE AND LONGITUDE IN DECIMAL DEGREES AT THE PROJECT ENTRANCE ON SHEET C2.0.
2. NARRATIVE AND CONSTRUCTION SEQUENCE
2.1. A NARRATIVE FOR DESCRIBING THE NATURE AND PURPOSE OF THE CONSTRUCTION ACTIVITIES IS
LOCATED ON SHEET C2.0 UNDER "PROJECT DESCRIPTION".
2.2. CONSTRUCTION SEQUENCING IS AS FOLLOWS:
2.2.1. OBTAIN NCGO1 PERMIT AND SCHEDULE PRE -CONSTRUCTION MEETING AS APPLICABLE PER THE
LOCAL AHJ.
2.2.2. DEVELOP CONSTRUCTION ACCESS AND INSTALL TEMPORARY CONSTRUCTION ENTRANCE/EXIT.
2.2.3. INSTALL PERIMETER SILT FENCING AND REMOVE VEGETATION AND TREES AS NEEDED TO INSTALL
PERIMETER SILT FENCING.
2.2.4. CONTINUE TO CLEAR VEGETATION AND TREES AS REQUIRED TO INSTALL SEDIMENT BASINS.
2.2.5. INSTALL SEDIMENT BASINS IN ACCORDANCE WITH SHEETS C4.1 AND C5.0.
2.2.6. INSTALL RUNOFF CONTROL BEST MANAGEMENT PRACTICES (TEMPORARY DIVERSIONS,
DIVERSION DIKES).
2.2.7. STABILIZED TEMPORARY DIVERSION, SEDIMENT BASIN/TRAP INLETS AND EMBANKMENTS. INSTALL
STABILIZED OUTLET STRUCTURES AS APPLICABLE.
2.2.8. CLEAR REMAINING AREAS AS REQUIRED TO INSTALL PVARRAYS AND EQUIPMENT.
2.2.9. INSTALL PERIMETER FENCE.
2.2.10. INSTALL PV ARRAYS AND ASSOCIATED EQUIPMENT.
2.2.11. IMMEDIATELY STABILIZED MEDIUM VOLTAGE RUN TRENCHING TO ALLEVIATE NEED FOR
TEMPORARY SEDIMENT CONTROL. USE MULCH, EROSION CONTROL BLANKETS, TEMPORARY, AND
PERMANENT SEEDING. THE CONTRACTOR AND SWPPP DESIGNER SHALL CONSULT TO ENSURE
EFFECTIVE AND REASONABLY CONSTRUCTIBLE METHODS ARE USED AT THE TIME OF TRENCHING
STABILIZATION.
2.2.12. INSTALL AND STABILIZED INTERIOR ROADS FOR EQUIPMENT PAD ACCESS.
2.2.13. INSTALL PERMANENT SEEDING TO ACHIEVE SITE STABILIZATION.
2.2.14. INSTALL PERIMETER SCREENING AS SHOWN ON THE PLANS AND PER THE SPECIFICATIONS ON
SHEET C3.2.
2.2.15. REMOVE AND STABILIZE PERIMETER EROSION AND SEDIMENT CONTROL DEVICES ONCE 80%
STABILIZATION AS BEEN ACHIEVED.
2.2.16. CONVERT THE SEDIMENTATION BASINS PER THE SPECIFICATIONS ON SHEET C3.2.
2.2.17. ONCE THE SITE HAS BEEN PERMANENTLY STABILIZED AND ALL EROSION CONTROL MEASURES
HAVE BEEN REMOVED AND THE AFFECTED AREAS HAVE BEEN PERMANENTLY STABILIZED, SUBMIT
THE ELECTRONIC NOTICE OF TERMINATION (e-NOT) FORM THE END COVERAGE UNDER THE NCGO1
PERMIT.
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3. GENERAL SITE FEATURES
3.1. PROPERTY LINES ARE SHOWN ON ALL PLAN SHEETS.
3.2. EXISTING CONTOURS ARE SHOWN ON SHEET C1.0 AND PROPOSED CONTOURS ARE SHOWN ON SHEETS
C3.1 & C4.0.
3.3. CONTRACTOR SHALL COORDINATE WITH E&SC ENGINEER FOR LOCATION OF STOCKPILE FOR TOPSOIL
AND/OR SUBSOIL IF APPLICABLE.
3.4. LIMITS OF DISTURBANCE FOR CONSTRUCTION ACTIVITIES ARE SHOWN AS FOLLOWS:
3.4.1. LIMITS OF CLEARING AND GRUBBING ARE SHOWN ON SHEET C1.1.
3.4.2. LIMITS OF OVERALL SITE DEVELOPMENT DISTURBANCE IS SHOWN ON SHEETS C1.1 - C3.2.
3.4.3. NO BORROW OR WASTE AREAS WILL BE CREATED.
3.4.4. NO OFFSITE BORROW PITS WILL BE USED.
3.4.5. IF THE SAME PERSON CONDUCTS THE LAND DISTURBING ACTIVITY AND RELATED BORROW OR
WASTE ACTIVITY, THE RELATED BORROW OR WASTE ACTIVITY SHALL CONSTITUTE PART OF THE
LAND DISTURBING ACTIVITY UNLESS THE BORROW OR WASTE IS REGULATED UNDER THE MINING
ACT OF 1971, OR IS LANDFILL REGULATED BY THE DIVISION OF WASTE MANAGEMENT. IF THE LAND
DISTURBING ACTIVITY AND ANY RELATED BORROW OR WASTE ACTIVITY ARE NOT CONDUCTED BY
THE SAME PERSON, THEY SHALL BE CONSIDERED SEPARATE LAND DISTURBING ACTIVITIES AND
MUST BE PERMITTED EITHER THROUGH THE SEDIMENTATION POLLUTION CONTROL ACT AS
ONE -USE BORROW SITE OR THROUGH THE MINING ACT.
3.5. PLANNED AND EXISTING BUILDING LOCATIONS ARE NOT APPLICABLE. EQUIPMENT PADS, INVERTER
PADS, AND PV ARRAYS WILL BE INSTALLED PER SHEET C2.0.
3.6. PLANNED AND EXISTING ROAD LOCATIONS ARE SHOWN ON SHEET C2.0. MINIMAL EARTHWORK WILL BE
INVOLVED FOR PLANNED ROADS. CLEARING OF TOPSOIL, COMPACTION OF SOIL, AND INSTALLATION OF
GEOTEXTILE FABRIC AND COMPACTED ROAD BASE PER DETAIL 02/C5.0.
3.7. PROFILES OF STREETS, UTILITIES, AND PERMANENT DITCH LINES ARE NOT APPLICABLE. ACCESS
ROADS WILL FOLLOW THE EXISTING TOPOGRAPHY.
3.8. LOT LINES AND/OR BUILDING NUMBERS ARE NOT APPLICABLE. THE PROPOSED DEVELOPMENT WILL
NOT REQUIRE SUBDIVIDING OF THE PARCEL.
3.9. EASEMENTS AND DRAINAGE WAYS WILL NOT AFFECT OFFSITE AREAS.
3.10. LOCATION AND DETAILS ASSOCIATED WITH ONSITE STONE CRUSHING OR OTHER PROCESSING OF
MATERIALS EXCAVATED IS NOT APPLICABLE.
4. SITE DRAINAGE FEATURES
4.1. EXISTING DRAINAGE PATTERNS SHALL REMAIN AND ARE SHOWN ON SHEET C1.0.
4.2. DRAINAGE AREA MAP, SEE SHEET C3.1.
4.3. THERE ARE NO WETLANDS, STREAMS, LAKES, OR PONDS ON OR NEAR THE PROJECT SITE.
4.4. DRAINAGE AREAS ARE SHOWN ON SHEET C3.1.
4.5. NO CULVERTS ARE PROPOSED. SITE ACCESS WILL USE EXISTING DRIVEWAY WHERE DITCH CULVERTS
EXIST.
4.6. SOIL INFORMATION IS PROVIDED ON SHEET C1.0.
4.7. RECEIVING WATER IS FRENCH BROAD RIVER AT 600 FEET AWAY FROM PROJECT OUTFALLS AND THE
ASSOCIATED CLASSIFICATION IS B.
5. PLANS SHOWING EROSION AND SEDIMENT CONTROL MEASURES
5.1. LEGEND SHOWN ON ALL PLAN SHEETS.
5.2. LOCATION OF TEMPORARY AND PERMANENT E&SC MEASURES SHOWN ON SHEETS C3.0 - C3.2.
5.3. LOCATION OF STRUCTURAL PERMANENT STORMWATER QUALITY AND QUANTITY CONTROL MEASURES
IS NOT APPLICABLE. IN ACCORDANCE WITH NCDEQ ORDINANCE E-6 "SOLAR FARMS", PV ARRAYS ARE
CONSIDERED PERVIOUS. THE USE OF VEGETATIVE STABILIZATION USING SEEDING AND FERTILIZATION
AS REQUIRED.
5.4. CONSTRUCTION DRAWINGS AND DETAILS FOR TEMPORARY BMP MEASUREMENTS ARE SHOWN ON
SHEETS C5.0 - C5.1.
5.5. SPECIFICATIONS FOR GROUND STABILIZATION ARE SHOWN ON SHEET C3.1.
5.6. MAINTENANCE REQUIREMENTS FOR BMP MEASURES ARE SHOWN ON SHEETS C5.0 - C5.1.
5.7. CONTACT PERSON FOR MAINTENANCE IS JONATHAN NICOLOSI, PROJECT MANAGER JONATHAN
NICOLOSI. EMAIL: [e-mail]. PHONE: [phone]
5.8. PARAMETERS FOR MATERIAL HANDLING PROCEDURES FOR THE ITEMS REQUIRED IN PART 11, SECTION F
ARE SHOWN ON SHEET COA UNDER SECTION F.
5.9. STANDARD DETAILS FOR STRUCTURAL BMPS TO BE INSTALLED TO MANAGE THE ANTICIPATED
MATERIALS LISTED IN PART 11, SECTION F ARE SHOWN ON SHEETS C5.0 - C5.1.
6. CALCULATIONS
6.1. ALL DESIGN CALCULATIONS PERTAINING TO THIS SECTION ARE SHOWN ON SHEET C4.0.
7. VEGETATIVE STABILIZATION SHOWN ON PLANS
7.1. AREA AND ACREAGE TO BE STABILIZED WITH VEGETATION SHOWN ON SHEET C3.2.
7.2. METHOD OF SOIL PREPARATION IS SHOWN ON SHEET C3.2.
7.3. SEED TYPES AND RATES ARE SHOWN ON SHEET C3.2.
7.4. FERTILIZER TYPES AND RATES ARE SHOWN ON SHEET C3.2.
7.5. MULCH TYPE AND RATES ARE SHOWN ON SHEET C3.2.
8. DOCUMENTATION
8.1. COMPLETED, SIGNED AND NOTARIZED FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SHALL BE
PROVIDED BY THE OWNER/DEVELOPER.
8.2. CERTIFICATE OF ASSUMED NAME, IF THE OWNER IS A PARTNERSHIP SHALL BE PROVIDED BY THE
OWNER(S)/DEVELOPER.
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCGO1
CONSTRUCTION GENERAL PERMIT
IMPLEMENTING THE DETAILS AND SPECIFICATIONS ON THIS PLAN SHEET WILL RESULT IN THE CONSTRUCTION
ACTIVITY BEING CONSIDERED COMPLIANT WITH THE GROUND STABIL17-ATION AND MATERIALS HANDLING
SECTIONS OF THE NCGO1 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.
SECTION E: GROUND STABILIZATION
REQUIRED GROUND STABILIZATION TIMEFRAMES
STABILIZE WITHIN THIS
SITE AREA
MANY CALENDAR DAYS
TIMEFRAME VARIATIONS
DESCRIPTION
AFTER CEASING LAND
DISTURBANCE
PERIMETER DIKES
SWALES, DITCHES, &
7
NONE
PERIMETER SLOPES
HIGH QUALITY
WATER (HQW)
7
NONE
ZONES
SLOPES STEEPER
IF SLOPES ARE 10'OR LESS IN LENGTH AND ARE NOT
THAN 3:1
14
STEEPER THAN 2:1,14 DAYS ARE ALLOWED
-7 DAYS FOR SLOPES GREATER THAN 50'LENGTH AND
WITH SLOPES STEEPER THAN 4:1
SLOPES 3:1 TO 4:1
14
-7 DAYS FOR PERIMETER DIKES, SWALES, DITCHES,
PERIMETER SLOPES AND HQW ZONES
-10 DAYS FOR FALLS LAKE WATERSHED
-7 DAYS FOR PERIMETER DIKE, SWALES, DITCHES,
AREAS WITH SLOPES
PERIMETER SLOPES AND HQW ZONES
14
FLATTER THAN 4:1
-10 DAYS FOR FALLS LAKE WATERSHED UNLESS THERE
IS A 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 SURFACE STABLE AGAINST ACCELERATED
EROSION UNTIL PERMANENT GROUND STABILIZATION IS ACHIEVED.
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
0 TEMPORARY GRASS SEED COVER WITH
0 PERMANENT GRASS SEED COVERED WITH
STRAW OR OTHER MULCHES AND TACKIFIERS
STRAW OR OTHER MULCHES AND TACKIFIERS
0 HYDROSEEDING
0 GEOTEXTILE FABRICS SUCH AS PERMANENT
0 ROLLED EROSION CONTROL PRODUCTS WITH
SOIL REINFORCEMENT MATTING
OR WITHOUT TEMPORARY GRASS SEED
0 HYDROSEEDING
0 APPROPRIATELY APPLIED STRAW OR OTHER
0 SHRUBS OR OTHER PERMANENT PLANTINGS
MULCH
COVERED WITH MULCH
0 PLASTIC SHEETING
0 UNIFORM AND EVENLY DISTRIBUTED GROUND
COVER SUFFICIENT TO RESTRAIN EROSION
0 STRUCTURAL METHODS SUCH AS CONCRETE,
ASPHALT OR RETAINING WALLS
0 ROLLED EROSION CONTROL PRODUCTS WITH
I
I GRASS SEED. I
SECTION F. MATERIALS HANDLING
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.
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1 . SELECT FLOCCULANTS THAT ARE APPROPRIATE FOR THE SOILS BEING EXPOSED DURING
CONSTRUCTION, SELECTING FROM THE NC DWR LIST OF APPROVED PAMS/FLOCCULANTS
2. APPLY FLOCCULANTS AT OR BEFORE THE INLETS TO EROSION AND SEDIMENT CONTROL MEASURES.
3. APPLY FLOCCULANTS AT THE CONCENTRATIONS SPECIFIED IN THE NC DWR LIST OF APPROVED
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.
LITTER, 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 OF 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.
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
SURFACEWATER. IFA 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 UNDERCOVER ORIN SECONDARY CONTAINMENT.
3. DO NOT STORE HAZARDOUS CHEMICALS, DRUMS OR BAGGED MATERIALS DIRECTLY ON THE
GROUND.
EARTHEN STOCKPILE MANAGEMENT
1 . LOCATE EARTH EN -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. WHEN SURROUNDING STOCKPILES WITH SEDIMENT FENCE, LEAVE AN OPENING FOR
INGRESS/EGRESS.
4. STOCKPILES IDLE FOR MORE THAN 14 DAYS SHALL BE STABILIZED. STOCKPILES SHALL NOT
EXCEED 25 FEET IN HEIGHT. 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.
CONCRETE WASHOUTS
1 . INSTALL CONCRETE WASHOUT PER DETAIL TWO (2) SHEET C5.1.
2. DO NOT DISCHARGE CONCRETE OR CEMENT SLURRY FROM THE SITE.
3. DISPOSE OF, OR RECYCLE SETTLED, HARDENED CONCRETE RESIDUE IN ACCORDANCE WITH LOCAL
AND STATE SOLID WASTE REGULATIONS AND AT AN APPROVED FACILITY.
4. 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.
5. 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.
6. 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. LIQUIDWASTEMUST
BE PUMPED OUT AND REMOVED FROM PROJECT.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
OPERATION AND MAINTENANCE
1 . MODIFICATIONS TO THE E&SC
PLAN MODIFICATIONS TO THE APPROVED E&SC PLAN THAT REQUIRE CHANGES TO THE
DESIGNS OR THE APPROVED DRAINAGE AREAS OR DISTURBED AREAS DRAINING TO E&SC
MEASURES SHALL BE APPROVED BY THE E&SC PLAN AUTHORITY. DEVIATIONS FROM THE
APPROVED E&SC PLAN, OR APPROVED REVISED E&SC PLAN, SHALL
CONSTITUTE A VIOLATION OF THIS PERMIT UNLESS THE DEVIATION IS TO CORRECT AN EMERGENCY
SITUATION WHERE SEDIMENT IS BEING DISCHARGED OFF THE SITE. THE E&SC PLAN AUTHORITY MAY
ALLOW DEVIATIONS FROM THE E&SC PLAN ON A CASE -BY -CASE BASIS IF THE DEVIATIONS ARE MINOR
ADJUSTMENTS TO ADDRESS MINOR DEFICIENCIES.
2. OPERATION AND MAINTENANCE
THE PERMITTEE SHALL INSTALL AND MAINTAIN ALL TEMPORARY AND PERMANENT E&SC MEASURES
AS REQUIRED BY THIS PERMIT AND THE APPROVED E&SC PLAN. (15A NCAC 0413.01 13)
3. CORRECTIVE ACTIONS
IF SELF -INSPECTIONS REQUIRED BY THIS PERMIT IDENTIFY A NEED FOR MAINTENANCE OF CONTROL
MEASURES, MODIFICATIONS OR ADDITIONS TO CONTROL MEASURES, OR CORRECTIVE ACTIONS TO
CONTROL SEDIMENT OR OTHER POLLUTANTS, THESE ACTIONS SHALL BE PERFORMED AS SOON AS
POSSIBLE CONSIDERING ADVERSE WEATHER AND SITE CONDITIONS.
4. MAINTENANCE OF 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. IF IT IS NOT PRACTICABLE TO
WITHDRAW WATER FROM THE SURFACE TO PERFORM MAINTENANCE, THEN WATER MAY BE PUMPED
FROM THE LOWER PART OF THESE BASINS PROVIDED THAT ALL OF THE FOLLOWING CRITERIA ARE
MET:
4.1. THE E&SC PLAN AUTHORITY HAS BEEN INFORMED AND HAS APPROVED THE NON -SURFACE
WITHDRAWAL.
4.2. AN AUXILIARY TREATMENT METHOD, SUCH AS A PROPERLY SIZED AND MAINTAINED SILT BAG, IS
PROVIDED TO REDUCE SEDIMENT DISCHARGE TO THE RECEIVING CONVEYANCE,
4.3. THE WATER IS DISCHARGED IN A NON -EROSIVE MANNER, AND
4.4. IF PRACTICAL, WATER IS ALLOWED TO FLOW OVER A STABILIZED GROUND COVER FOR
ADDITIONAL FILTRATION.
5. BYPASS OF E&SC MEASURES
DIVERSIONS OF STORMWATER FROM E&SC MEASURES WHEN THE DESIGN STORM HAS NOT BEEN
EXCEEDED ARE NOT ALLOWED. BYPASSES OF E&SC MEASURES SHALL BE REPORTED IN
ACCORDANCE WITH PART 111, SECTION C,ITEM (2)(C) AND (D) OF THIS PERMIT.
6. UNAVOIDABLE BYPASS FOR PUBLIC SAFETY A BYPASS MAY BE ALLOWED BY THE DIRECTOR IF THE
DIRECTOR DETERMINES THAT ALL OF THE FOLLOWING CONDITIONS WERE MET:
6.1. THE BYPASS IS UNAVOIDABLE TO PREVENT LOSS OF LIFE, PERSONAL INJURY OR SEVERE
PROPERTY DAMAGE,
6.2. THERE WERE NO FEASIBLE ALTERNATIVES TO THE BYPASS, SUCH AS THE USE OF AUXILIARY
CONTROL FACILITIES, RETENTION OF STORMWATER OR MAINTENANCE DURING NORMAL
PERIODS OF EQUIPMENT DOWNTIME OR DRY WEATHER. THIS CONDITION IS NOT SATISFIED IF
ADEQUATE BACKUP CONTROLS SHOULD HAVE BEEN INSTALLED IN THE EXERCISE OF
REASONABLE ENGINEERING JUDGEMENT TO PREVENT A BYPASS WHICH OCCURRED DURING
NORMAL PERIODS OF EQUIPMENT DOWNTIME OR PREVENTATIVE MAINTENANCE, AND
6.3. THE PERMITTEE SUBMITTED A NOTICE OF THE BYPASS PER THE RECORD -KEEPING
REQUIREMENTS IN PART 111, SECTION C, ITEM (2)(C) AND (D) OF THIS PERMIT.
7. UPSET OF E&SC MEASURES
DIVERSIONS OF STORMWATER FROM E&SC MEASURES MAY BE CONSIDERED AS AN UPSET IF THE
PERMITTEE CAN DEMONSTRATE THAT ALL OF THE FOLLOWING CONDITIONS HAVE BEEN MET. INANY
ENFORCEMENT PROCEEDING, THE PERMITTEE SEEKING TO ESTABLISH THE OCCURRENCE OF AN
UPSET HAS THE BURDEN OF PROOF.
7.1. THE PERMITTEE SUBMITTED NOTICE OF THE UPSET AS REQUIRED IN THIS GENERAL PERMIT AND
IDENTIFIES THE CAUSE(S) OF THE UPSET.
7.2. THE PERMITTEE DEMONSTRATES THAT THE UPSET WAS NOT CAUSED BY OPERATIONAL ERROR,
IMPROPERLY DESIGNED TREATMENT OR CONTROL FACILITIES, LACK OF PREVENTIVE
MAINTENANCE, OR CARELESS ORIMPROPER OPERATION.
7.3. THE PERMITTEE AGREES TO TAKE REMEDIAL MEASURES IF NECESSARY.
PART III - SELF INSPECTION, RECORDKEEPING AND REPORTING SHEET CO.0 FOR PROJECT LOCATION
SECTION A: SELF -INSPECTIONS
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 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. ANY
TIME WHEN INSPECTIONS WERE DELAYED SHALL BE NOTED IN THE INSPECTION RECORD.
FREQUENCY (DURING
INSPECTION
NORMAL BUSINESS
INSPECTION RECORDS MUST INCLUDE [40 CFR 122.41]:
HOURS)
(1) RAIN GAUGE
DAI LY
DAILY RAINFALL AMOUNTS.
MAINTAINED IN
IF NO DAILY RAIN GAUGE OBSERVATIONS ARE MADE
GOODWORKING
DURING WEEKEND OR HOLIDAY PERIODS, AND NO
ORDER
INDIVIDUAL -DAY RAINFALL INFORMATION IS AVAILABLE,
RECORD THE CUMULATIVE RAIN MEASUREMENT FOR
THOSE UNATTENDED 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,
7 CALENDAR DAYS
2. DATE AND TIME OF THE INSPECTION,
AND WITHIN 24
3. NAME OF THE PERSON PERFORMING THE
HOURS OF A RAIN
INSPECTION,
EVENT > 1.0 INCH
4. INDICATION OF WHETHER THE MEASURES WERE
IN 24 HOURS
OPERATING PROPERLY,
5. DESCRIPTION OF MAINTENANCE NEEDS FOR THE
MEASURE,
6. CORRECTIVE ACTIONS TAKEN, AND
7. DATE OF ACTIONS TAKEN
(3) STORMWATER
AT LEAST ONCE PER
1. IDENTIFICATION OF THE DISCHARGE OUTFALL
DISCHARGE
7 CALENDAR DAYS
INSPECTED,
OUTFALLS (SDOS)
AND WITHIN 24
2. DATE AND TIME OF THE INSPECTION,
HOURS OF A RAIN
3. NAME OF THE PERSON PERFORMING THE
EVENT > 1.0 INCH
INSPECTION,
IN 24 HOURS
4. EVIDENCE OF INDICATORS OF STORMWATER
POLLUTION SUCH AS OISHEEN, FLOATING OR
SUSPENDED SOLIDS OR DISCOLORATION,
5. INDICATION OF VISIBLE SEDIMENT LEAVING THE SITE,
6. ACTIONS TAKEN TO CORRECT/PREVENT
SEDIMENTATION, AND
7. DATE OF ACTIONS TAKEN.
(4) PERIMETER OF
AT LEAST ONCE PER
IF VISIBLE SEDIMENTATION IS FOUND OUTSIDE SITE
SITE
7 CALENDAR DAYS
LIMITS, THEN A RECORD OF THE FOLLOWING SHALL BE
AND WITHIN 24
MADE:
HOURS OF A RAIN
1. ACTIONS TAKEN TO CLEAN UP OR STABILIZE THE
EVENT > 1.0 INCH
SEDIMENT THAT HAS LEFT THE SITE LIMITS,
IN 24 HOURS
2. DATE OF ACTIONS TAKEN, AND
3. AN EXPLANATION AS TO THE ACTIONS TAKEN TO
CONTROL FUTURE RELEASES.
(5) STREAMS OR
AT LEAST ONCE PER
IF THE STREAM OR WETLAND HAS INCREASED VISIBLE
WETLANDS ONSITE
7 CALENDAR DAYS
SEDIMENTATION ORA STREAM HAS VISIBLE INCREASED
OR OFFSITE
AND WITHIN 24
TURBIDITY FROM THE CONSTRUCTION ACTIVITY, THEN
(WHERE
HOURS OF A RAIN
A RECORD OF THE FOLLOWING SHALL BE MADE:
ACCESSIBLE)
EVENT > 1.0 INCH
1. EVIDENCE AND ACTIONS TAKEN TO REDUCE
IN 24 HOURS
SEDIMENT CONTRIBUTIONS, AND
2. RECORDS OF THE REQUIRED REPORTS TO THE
APPROPRIATE DIVISION REGIONAL OFFICE PER PART 111,
SECTION C, ITEM (2)(A) OF THIS PERMIT
OF THIS PERMIT.
6) GROUND
AFTER EACH PHASE
1. THE PHASE OF GRADING (INSTALLATION OF
STABILIZATION
OF GRADING
PERIMETER E&SC MEASURES, CLEARING AND
GRUBBING, INSTALLATION OF STORM DRAINAGE
FACILITIES, COMPLETION OF ALL 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.
SECTION B: RECORD KEEPING
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 DOCUMENTED IN THE MANNER
DESCRIBED:
REPORTING TIMEFRAMES (AFTER DISCOVERY) AND OTHER
REQUIREMENTS
(A) VISIBLE SEDIMENT
0 WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
DEPOSITION IN A
0 WITHIN 7 CALENDAR DAYS, A REPORT THAT CONTAINS A
STREAM OR WETLAND
DESCRIPTION OF THESEDIMENT AND ACTIONS TAKEN TO
ADDRESS THE CAUSE OF THE DEPOSITION. DIVISION STAFF MAY
WAIVE THE REQUIREMENT FOR AWRITTEN REPORT ON A CASE
BY -CASE BASIS.
0 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
0 WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION. THE
RELEASE OF HAZARDOUS
NOTIFICATION SHALL INCLUDE INFORMATION ABOUT THE DATE,
SUBSTANCES PER ITEM
TIME, NATURE, VOLUME AND LOCATION OF THE SPILL OR
1 (B)-(C) ABOVE
RELEASE.
(C) ANTICIPATED
0 A REPORT AT LEAST TEN DAYS BEFORE THE DATE OF THE
BYPASSES [40 CFR122.41 (M)(3)]
BYPASS, IF POSSIBLE. THEREPORT SHALL INCLUDE AN
EVALUATION OF THE ANTICIPATED QUALITY AND EFFECT OF THE
BYPASS.
(D) UNANTICIPATED
0 WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
BYPASSES [40 CFR
0 WITHIN 7 CALENDAR DAYS, A REPORT THAT INCLUDES AN
122.41 (M) (3)
EVALUATION OF THE QUALITY AND EFFECT OF THE BYPASS.
0 WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
WHICH MAY ENDANGER
0 WITHIN 7 CALENDAR DAYS, A REPORT THAT CONTAINS A
HEALTH OR THE
DESCRIPTION OF THE NONCOMPLIANCE, AND ITS CAUSES; THE
ENVIRONMENT[40 CFR
PERIOD OF NONCOMPLIANCE, INCLUDING EXACT DATES AND
122.41 (L)
TIMES, AND IF THE NONCOMPLIANCE HAS NOT BEEN CORRECTED,
THE ANTICIPATED TIME NONCOMPLIANCE IS EXPECTED TO
CONTINUE; AND STEPS TAKEN OR PLANNED TO REDUCE,
ELIMINATE, AND PREVENT REOCCURRENCE OF THE
NONCOMPLIANCE. [40 CFR 122.41 (L)(6).
0 DIVISION STAFF MAY WAIVE THE REQUIREMENT FOR A WRITTEN
REPORT ON A CASEBY-CASEBASIS.
ABBREVIATIONS
ABC AGGREGATE BASE COURSE
APPROX APPROXIMATE
AVG
BMP BEST MANAGEMENT PRACTICE
BSL BUILDING SETBACK LINE
C/L
CMP CORRUGATED METAL PIPE
CONC CONCRETE
CID CONTROL POINT
DB DEED BOOK
DIA DIAMETER
DWG DRAWING
ECM EXISTING CONCRETE MONUMENT
EG EXISTING GRADE
EOP EDGE OF PAVEMENT
EL ELEVATION
ELEC ELECTRIC
ESMT
ETW EDGE OF TRAVEL WAY
(E) EXISTING
FCIM FOUND CAST IRON MONUMENT
FIPM FOUND IRON PIPE MONUMENT
FG FINISHED GRADE
FIP FOUND IRON PIPE
FL FLOW LINE
FT FEET
HWQ HIGH QUALITY WATER
LAT LATITUDE
LONG LONGITUDE
LF LINEAR FEET
LP LIGHT POLE
MAX MAXIMUM
MIN MINIMUM
NCDEQ NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
NCDOT NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
O/H
(P)
P/L PROPERTY LINE
PG PAGE
PID POWER POLE
RD ROAD
ROW RIGHT-OF-WAY
SD STORM DRAIN
SF SILT/SEDIMENT FENCE
STD
SS SANITARY SEWER
SWPPP STORMWATER POLLUTION PREVENTION PLAN
TYP TYPICAL
STORMWATER NARRATIVE:
E-1 LOW DENSITY PROJECTS:
THE HOT SPRINGS MICROGRID SOLAR SITE IS LOCATED IN A OUTSTANDING RESOURCE WATER (OR\N) AND
THE OVERALL BUILT -UPON AREA (BUA) IS 0.18% WHICH IS LESS THAN THE 12% THRESHOLD STATED IN
TABLE 1 OF E-1 (SEE SHEET C4.0 FOR SUPPORTING CALCULATIONS). PER A-4 BUILT -UPON AREA, THE
GRAVEL ROAD AND EQUIPMENT AREA GRAVEL WERE EXCLUDED FROM THE BUA CALCULATIONS SINCE
THESE AREAS WILL SEE "INFREQUENT VEHICULAR TRAFFIC" AFTER CONSTRUCTION (SIGNIFICANTLY LESS
THAN THE A-4 STATED TWICE A MONTH). THIS PROJECT WILL USE LOW -DENSITY DISPERSED FLOW AND
MEADOW CONDITIONS TO PROVIDE STORMWATER TREATMENT.
E-6 SOLAR FARMS:
RECOMMENDATION 1: AVOID COMPACTION OF SUBSOIL
SUBSOIL COMPACTION SHOULD BE MINIMIZED DURING AND AFTER INSTALLATION OF SOLAR ARRAYS TO
ALLOW THE MAXIMUM AMOUNT OF NATURAL INFILTRATION. IF COMPACTION OCCURS DURING
CONSTRUCTION, SUBSOIL SHOULD BE TILLED AND AMENDED TO RETURN THE SOIL TO ITS
PRE -COMPACTION CONDITION.
NECT RUNOFF FROM SOLAR PANEL ARRAYS
SOLAR ARRAYS SHOULD BE DESIGNED AND INSTALLED TO ALLOW GROWTH OF VEGETATION UNDER AND
BETWEEN THE SOLAR ARRAYS. ROWS OF PANELS SHOULD BE INSTALLED WITH SUFFICIENT DISTANCE
BETWEEN ROWS TO ALLOW FOR CAPTURE OF RAINFALL FROM AT LEAST 1.0 INCH OF RAIN. WHERE
INSTALLED ON SLOPES GREATER THAN 8%, CONSIDER OPTIONS FOR MAINTAINING SHEET FLOWAND
DISSIPATING ENERGY AT THE DRIP EDGE OF EACH ROW OF PANELS. THE PANEL WIDTH IS APPROXIMATELY
12 FEET AND THE DISCONNECTION LENGTH IS APPROXIMATELY 20 FEET (SEE SHEET C2.0 FOR
DIMENSIONS).
RECOMMENDATION 3: AVOID CONCENTRATION OF STORMWATER
PANELS SHOULD BE POSITIONED TO ALLOW STORMWATER TO RUN OFF THEIR SURFACES; HOWEVER,
COLLECTION AND CONCENTRATION OF STORMWATER FLOW IS TO BE AVOIDED. ARRAYS SHOULD BE
INSTALLED ON A UNIFORM PLANE SUCH THAT STORMWATER WILL SHEET FLOW OFF THE PANELS AND
REMAIN UNCONCENTRATED. WHEN CONSIDERING A POTENTIAL BUILD SITE, IT'S A GOOD IDEA TO
CONSIDER THE SLOPE OF THE LAND IN THE AREAS OF THE SITE WHERE THE SOLAR ARRAYS ARE MOST
LIKELY TO BE INSTALLED. AREAS WITH STEEP SLOPES MAY NOT BE SUITABLE OR MAY REQUIRE
CONSIDERABLE GRADING. THE ARRAY AREA SLOPES RANGE FROM APPROXIMATELY 4% TO 20% HOWEVER
THE SITE GENERALLY SHEET FLOWS AND VEGETATED MEADOW CONDITIONS WILL BE IMPLEMENTED TO
REDUCE DRIP IMPACT AND STORMWATER VELOCITIES. PER THE O&M AGREEMENT THESE CONDITIONS
WILL BE VERIFIED AND CORRECTED AS NEEDED.
RECOMMENDATION 4: MINIMIZE USE OF HERBICIDES AND FERTILIZERS
WEED CONTROL AND VEGETATION MANAGEMENT IS PARTICULARLY IMPORTANT FOR GROUND -MOUNTED
SOLAR SYSTEMS. OVERUSE OF HERBICIDES AND FERTILIZERS CAN CONTRIBUTE TO DEGRADED WATER
QUALITY. LIMIT THE USE OF FERTILIZERS TO THAT NECESSARY TO MAINTAIN VEGETATION. USE MOWING
FOR VEGETATION CONTROL INSTEAD OF HERBICIDES.
RECOMMENDATION 5: PLANT MIX OF WARM- & COOL -SEASON GRASSES
LARGE SOLAR ARRAYS CAN HAVE THE EFFECT OF CREATING MICROCLIMATES UNDER THE PANELS. TO
HELP ACCOUNT FOR THIS, PLANT A MIXTURE OF WARM -SEASON AND COOL -SEASON GRASSES TO
ACCOUNT FOR DIFFERENCES IN TEMPERATURE AND SHADING CREATED FROM THE INSTALLATION OF
LARGE SOLAR ARRAYS. IN ADDITION, USE LOW -GROWING, LOW -MAINTENANCE GRASS MIXTURES. PLANTING
MIXTURES CAN ALSO INCLUDE LOW -GROWING WILDFLOWERS SUCH AS WHITE CLOVER AND OTHER TYPES
OF VEGETATION THAT CAN BE ATTRACTIVE TO POLLINATORS. A WIN -WIN FOR THE GRASS AND THE BEES!
SEE SHEET C3.2 FOR SEED MIX.
RECOMMENDATION 6: LIMIT VERTICAL CLEARANCE TO!� 10 FEET
STORMWATER RUNOFF FALLING FROM SOLAR PANELS CAN CAUSE SCOURING AND EROSION AT THE
DRIPLINES. LIMITING THE LOWEST VERTICAL CLEARANCE TO NO GREATER THAN 10 FEET WILL HELP
PREVENT EROSION AND SCOURING ALONG THE DRIPLINE. THE VERTICAL CLEARANCE FOR THE PANELS IS
SPECIFIED AT 30 INCHES. PLEASE SEE SHEET PV8.0.
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39845 MATHEWS LANE
PAONIA, CO 81428
[e-mail]
970.527.3920
ENGINEER
EPC CONTRACTOR
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WARTSILA
WARTSILA NORTH AMERICA, INC
11 71 0 N. GESSNER ROAD, SUITE A
HOUSTON, TX 77064
[phone]
DUKE PROJECT NUMBER
446-14
DUKE SHEET NUMBER
HSPOO-EN-C-CV-01
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PHASE
IFC REV3
DATE
2/10/21
DRAWING SCALE
N.T.S
NOTE: If this drawing is not 24x36" it has been
revised from its original size the scales noted on
drawing/details are no longer applicable.
DRAWN BY DRAWN BY
REB I
DRAWING NAME
CIVIL NOTES
co - 1