SW3220202_Plansheet C303 - Other_20221101

DATE
AUG 15 - NOV 1
NOV 1 - MAR 1
MAR 1 -APR 15
APR 15 -JUN 30
JUL 1 - AUG 15
DATE
MAR 1 -JUN 1
MAR 1 -APR 15
MAR 1 - JUN 30
JUN 1 - SEP 1
SEP 1 - MAR 1
NOV 1 - MAR 1
STORM SEWER STRUCTURE & PIPE SCHEDULE
UPSTREAM
STR.
UPSTREAM
RIM EL.
INVERTS) IN
INVERT OUT
DOWNSTREAM
STR.
D.S. PIPE
LENGTH (FT)
D.S. PIPE
DIA (IN)
D.S. PIPE
MATERIAL
D.S. PIPE
SLOPE (FT/FT)
FES 100
506.04
510.00 (18" - OTCB 101)
FES 28
506.42
500.50 (36" - OCS 29)
FES 1
513.46
508.50 (36" - DI 2)
FES 29
521.67
517.50 (36" - MH 30)
DI 2
513.50
508.87 (36" - DI 2A)
508.87
FES 1
65
36
0-RING RCP
0.006
DI 2A
516.50
510.(18" - DI 3)
45
509.45
DI 2
101
36
0-RING RCP
0.006
DI 3
515.04
511.45 (15" - Cl 3A)
511.45
DI 2A
125
18
0-RING RCP
0.006
Cl 3A
518.50
514.55
DI 3
115
15
0-RING RCP
0.027
DI 4
520.50
510.49 (30" - DI 5)
510.49
DI 2A
172
36
0-RING RCP
0.006
DI 5
521.25
511.73 (30" - MH 6)
511.73
DI 4
131
30
0-RING RCP
0.009
MH 6
520.50
512.09 (30" - MH 7)
512.09
DI 5
71
30
0-RING RCP
0.005
MH 7
519.50
512.35 (30" - Cl 8)
512.35
MH 6
35
30
0-RING RCP
0.007
Cl 8
523.40
512.75 (30" - Cl 10)
516.00 (18" - Cl 9)
512.75
MH 7
63
30
0-RING RCP
0.006
Cl 9
520.50
516.30
Cl 8
56
18
RCP
0.005
Cl 10
524.85
517.92 (15" - Cl 12)
518.75 (15" - Cl 11)
512.97 (24" - Cl 17)
512.97
Cl 8
37
30
0-RING RCP
0.006
Cl 11
524.85
519.98 (15" - DI 11.1)
519.98
Cl 10
22
15
RCP
0.055
Cl 11.2
525.12
520.68
DI 11.1
46
15
RCP
0.006
DI 11.1
525.86
520.40 (15" - Cl 11.2)
520.40
Cl 11
69
15
RCP
0.006
Cl 12
528.00
523.57 (15" - DI 13)
523.57
Cl 10
74
15
RCP
0.076
DI 13
533.38
526.66 (15" - DI 14)
526.66
Cl 12
151
15
RCP
0.020
DI 14
532.50
527.50 (15" - DI 15)
527.50
DI 13
167
15
RCP
0.005
DI 15
532.50
527.65 (15" - DI 16)
527.65
DI 14
30
15
RCP
0.005
DI 16
532.50
527.85
DI 15
31
15
RCP
0.006
Cl 17
525.00
517.12 (15" - Cl 18) 517.13 (24" - Cl 20)
513.52
Cl 10
91
24
C-RING RCP
0.006
Cl 18
527.50
522.42
Cl 17
76
15
RCP
0.070
Cl 20
523.50
517.39 (18" - Cl 21)
517.39
Cl 17
52
24
RCP
0.005
Cl 21
524.75
518.12 (15" - Cl 22)
518.37 (15" - MH 23)
518.12
Cl 20
146
18
RCP
0.005
Cl 22
521.65
518.55
Cl 21
87
15
RCP
0.005
MH 23
530.22
525.05 (15" - DI 24)
525.05
Cl 21
113
15
RCP
0.059
DI 24
532.00
527.01 (15" - DI 25)
527.01
MH 23
ill
15
RCP
0.018
DI 25
532.50
527.25 (15" - DI 26)
527.25
DI 24
49
15
RCP
0.005
DI 26
532.00
527.44 (15" - DI 27)
527.44
DI 25
37
15
RCP
0.005
DI 27
532.00
527.65
DI 26
38
15
RCP
0.005
OCS 29
507.75
502.00
FES 28
61
36
0-RING RCP
0.024
MH 30
523.15
517.63 (36" - MH 31)
517.63
FES 29
26
36
CLASS IV RCP
0.005
MH 31
524.00
519.15 (30" - MH 32)
518.65
MH 30
202
36
CLASS IV RCP
0.005
MH 32
533.85
526.70 (30" - OTCB 33)
526.50
MH 31
257
30
CLASS IV RCP
0.029
OTCB 33
533.00
528.00
MH 32
53
30
RCP
0.024
OTCB 101
518.44
510.56 (15" - DI 103)
510.31
FES 100
52
18
CLASS IV RCP
0.006
DI 103
524.41
520.19
OTCB 101
141
15
CLASS IV RCP
0.068
SLOPES (3:1 TO 2:1)
TYPE
TALL FESCUE
TALL FESCUE & ABRUZZI
RYE
TALL FESCUE
HULLED COMMON BERMUDA
GRASS
TALL FESCUE AND
***BROWNTOP MILLET
*** OR SORGHUM-SUDAN
HYBRIDS
SLOPES (3:1 TO 2:1)
TYPE
SERICEA LESPEDEZA
(SCARIFIED) AND
ADD TALL FESCUE
OR ADD HULLED COMMON
BERMUDA GRASS
***TALL FESCUE AND
***BROWNTOP MILLET ***OR
SORGHUM-SUDAN HYBRIDS
SERICEA LESPEDEZA
(UNHULLED- UNSCARIFIED)
AND TALL FESCUE
ADD ABRUZZI RYE
PERMANENT SEEDING SPECIFICATIONS
PLANTING RATE
300 LBS/ACRE
300 LBS/ACRE
25 LBS/ACRE
300 LBS/ACRE
25 LBS/ACRE
120 LBS/ACRE
35 LBS/ACRE
30 LBS/ACRE
PLANTING RATE
50 LBS/ACRE
120 LBS/ACRE
25 LBS/ACRE
120 LBS/ACRE
35 LBS/ACRE
30 LBS/ACRE
70 LBS/ACRE
120 LBS/ACRE
25 LBS/ACRE
SELF INSPECTION REQUIREMENTS
1. SELF -INSPECTIONS WILL BE PERFORMED IN ACCORDANCE WITH THE NPDES GENERAL PERMIT
FOR CONSTRUCTION ACTIVITIES NCG010000.
2. ALL TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES, INCLUDING
SEDIMENTATION CONTROL BASINS, SEDIMENTATION TRAPS, SEDIMENTATION PONDS, ROCK
DAMS, TEMPORARY DIVERSIONS, TEMPORARY SLOPE DRAINS, ROCK CHECK DAMS, SEDIMENT
FENCE OR BARRIERS, ALL FORMS OF INLET PROTECTION, STORM DRAINAGE FACILITIES,
ENERGY DISSIPATERS, STABILIZATION METHODS OF OPEN CHANNELS, AND GROUND COVER
SHALL BE INSPECTED BY THE GENERAL CONTRACTOR.
3. THE DIMENSIONS OF THE BASINS SHALL BE CHECKED AND COMPARED TO THE DIMENSIONS
ON THE APPROVED SEDIMENTATION AND EROSION CONTROL PLAN. NOTIFY BENESCH IF THE
DIMENSIONS OF ANY OF THE EROSION CONTROL MEASURES DEVIATE FROM THE PLANS.
4. A "SELF -INSPECTION REPORT FORM FOR LAND DISTURBING ACTIVITY" (AS REQUIRED BY NCGS
113A-54.1) IS AVAILABLE ON THE NCDEQ WEBSITE OR PROVIDED WITHIN THE PROJECT
MANUAL. ALTERNATIVELY THE OWNER OR DESIGNATED REPRESENTATIVE COMPLETING THE
INSPECTIONS MAY MAKE NOTATIONS ON THE COPY OF THE APPROVED EROSION AND
SEDIMENTATION CONTROL PLAN THAT IS KEPT ON THE PROJECT SITE. DOCUMENTATION
SHALL BE ACCOMPLISHED BY INITIALING AND DATING EACH MEASURE OR PRACTICE SHOWN
ON A COPY OF THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN OR BY
COMPLETING DATING AND SIGNING AN INSPECTION REPORT THAT LISTS EACH MEASURE
PRACTICE OR DEVICE SHOWN ON THE APPROVED EROSION AND SEDIMENTATION CONTROL
PLAN. ALL DOCUMENTATION AND/OR REPORTS OF INSPECTIONS MUST BE MADE AVAILABLE
ON THE SITE.
5. THE SELF -INSPECTION REPORT IS TO BE COMPLETED AFTER EACH PHASE OF THE APPROVED
EROSION AND SEDIMENTATION CONTROL PLAN IS COMPLETE. THESE PHASES APPLY FOR THIS
PROJECT:
5.1. INSTALLATION OF PERIMETER EROSION AND SEDIMENT CONTROL MEASURES;
5.2. CLEARING AND GRUBBING OF EXISTING GROUND COVER;
5.3. COMPLETION OF ANY PHASE OF GRADING OF SLOPES OR FILLS;
5.4. INSTALLATION OF STORM DRAINAGE FACILITIES;
5.5. COMPLETION OF CONSTRUCTION OR DEVELOPMENT;
5.6. ESTABLISHMENT OF PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION.
CONSULT CONSERVATION ENGINEER OR SOIL CONSERVATION SERVICE FOR ADDITIONAL INFORMATION CONCERNING OTHER ALTERNATIVES FOR VEGETATION OF
DENUDED AREAS. THE VEGETATION RATES ARE THOSE WHICH DO WELL UNDER LOCAL CONDITIONS; OTHER SEEDING RATE COMBINATIONS ARE POSSIBLE.
***TEMPORARY - RESEED ACCORDING TO OPTIMUM SEASON FOR DESIRED PERMANENT VEGETATION. DO NOT ALLOW TEMPORARY COVER TO GROW OVER 12" IN
HEIGHT BEFORE MOWING, OTHERWISE FESCUE MAY BE SHADED OUT.
SOW SEED USING A SPREADER OR SEEDING MACHINE. DO NOT SEED WHEN WIND VELOCITY EXCEEDS 5 MPH. DISTRIBUTE SEED EVENLY OVER ENTIRE AREA BY
SOWING EQUAL QUANTITY IN 2 DIRECTIONS AT RIGHT ANGLES TO EACH OTHER.
SOW NOT LESS THAN THE QUANTITY OF SEED SPECIFIED OR SCHEDULED.
RAKE SEED LIGHTLY INTO TOP 1/8" OF SOIL, ROLL LIGHTLY, AND WATER WITH A FINE SPRAY.
PROTECT SEEDED SLOPES OF GREATER THAN 3:1 AGAINST EROSION WITH EROSION NETTING OR OTHER METHODS ACCEPTABLE TO THE LANDSCAPE ARCHITECT.
PROTECT SEEDED AREAS AGAINST EROSION BY SPREADING SPECIFIED LAWN MULCH AFTER COMPLETION OF SEEDING OPERATIONS. SPREAD UNIFORMLY TO FORM
A CONTINUOUS BLANKET NOT LESS THAN 1 1/2" LOOSE MEASUREMENT OVER SEEDED AREAS.
ANCHOR MULCH BY SPRAYING WITH ASPHALT EMULSION AT THE RATE OF 10-13 GALLONS PER 1,000 S.F. TAKE PRECAUTIONS TO PREVENT DAMAGE OR STAINING
OF CONSTRUCTION OR OTHER PLANTINGS ADJACENT TO MULCHED AREAS.
SEEDBED PREPARATION
1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP OVER ADVERSE SOIL CONDITIONS, IF AVAILABLE.
2. RIP THE ENTIRE AREA TO 6 INCHES DEPTH.
3. REMOVE ALL LOOSE ROCK, ROOTS, AND OTHER OBSTRUCTIONS LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM.
4. APPLY AGRICULTURAL LIME, FERTILIZER, AND SUPERPHOSPHATE UNIFORMLY AND MIX WITH SOIL (SEE BELOW*).
5. CONTINUE TILLAGE UNTIL A WELL -PULVERIZED, FIRM, REASONABLY UNIFORM SEEDBED IS PREPARED 4-6" DEEP.
6. SEED ON A FRESHLY PREPARED SEEDBED AND COVER SEED LIGHTLY WITH SEEDING EQUIPMENT OR CULTIPACK AFTER SEEDING.
7. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH.
8. INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIR OR RESEEDINGS WITHIN THE PLANTING SEASON, IF POSSIBLE. IF STAND SHOULD BE OVER 60%
DAMAGED, REESTABLISH FOLLOWING ORIGINAL LIME, FERTILIZER AND SEEDING RATES.
9. CONSULT CONSERVATION INSPECTOR ON MAINTENANCE TREATMENT AND FERTILIZATION AFTER PERMANENT COVER IS ESTABLISHED.
* APPLY: AGRICULTURAL LIMESTONE - 2 TONS/ACRE
FERTILIZER - 1000 LBS/ACRE 10-10-10
SUPERPHOSPHATE - 500 LBS/ACRE 20%
MULCH - 2 TONS/ACRE -SMALL GRAIN STRAW
ANCHOR -ASPHALT EMULSION
EROSION CONTROL NOTES:
1. SOIL STABILIZATION SHALL BE ACHIEVED ON ANY AREA OF A SITE WHERE LAND -DISTURBING
ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY CEASED
ACCORDING TO THE FOLLOWING SCHEDULE:
1A. ALL PERIMETER DIKES, SWALES, PERIMETER SLOPES AND ALL SLOPES STEEPER THAN 3
HORIZONTAL TO 1 VERTICAL (3:1) SHALL BE PROVIDED TEMPORARY OR PERMANENT STABILIZATION
WITH GROUND COVER AS SOON AS PRACTICABLE BUT IN ANY EVENT WITHIN 7 CALENDAR DAYS FROM
THE LAST LAND -DISTURBING ACTIVITY.
1 B. ALL OTHER DISTURBED AREAS SHALL BE PROVIDED TEMPORARY OR PERMANENT
STABILIZATION WITH GROUND COVER AS SOON AS PRACTICABLE BUT IN ANY EVENT WITHIN 14
CALENDAR DAYS FROM THE LAST LAND -DISTURBING ACTIVITY.
1C. CONDITIONS - IN MEETING THE STABILIZATION REQUIREMENTS ABOVE, THE FOLLOWING
CONDITIONS OR EXEMPTIONS SHALL APPLY:
1 D. EXTENSIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY BASED ON
WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE COMPLIANCE IMPRACTICABLE.
1 E. ALL SLOPES 50' IN LENGTH OR GREATER SHALL APPLY THE GROUND COVER WITHIN 7 DAYS
EXCEPT WHEN THE SLOPE IS FLATTER THAN 4:1. SLOPES LESS THAN 50, SHALL APPLY GROUND COVER
WITHIN 14 DAYS EXCEPT WHEN SLOPES ARE STEEPER THAN 3:1, THE 7 DAY REQUIREMENT APPLIES.
1 F. ANY SLOPED AREA FLATTER THAN 4:1 SHALL BE EXEMPT FROM THE 7 DAY GROUND COVER
REQUIREMENT.
1G. SLOPES Ill LESS IN LENGTH SHALL BE EXEMPT FROM THE 7 DAY GROUND COVER
REQUIREMENT EXCEPT WHEN THE SLOPE IS STEEPER THAN 2:1.
1 H. ALTHOUGH STABILIZATION IS USUALLY SPECIFIED AS GROUND COVER, OTHER METHODS,
SUCH AS CHEMICAL STABILIZATION, MAYBE ALLOWED ON A CASE -BY -CASE BASIS.
11. FOR PORTIONS OF PROJECTS WITHIN THE SEDIMENT CONTROL
COMMISSION -DEFINED HIGH QUALITY WATER ZONE (15A NCAC 04A. 0105), STABILIZATION WITH GROUND
COVER SHALL BE ACHIEVED AS SOON AS PRACTICABLE BUT IN ANY EVENT ON ALL AREAS OF THE SITE
WITHIN 7 CALENDAR DAYS FROM THE LAST LAND -DISTURBING ACT.
1J. ADDITIONAL MEASURES TO CONTROL EROSION AND SEDIMENT MAY BE REQUIRED BY A
REPRESENTATIVE OF NCDEQ STAFF. ANY LAND -DISTURBING ACTIVITY >1 ACRE REQUIRES COMPLIANCE
WITH ALL CONDITIONS OF THE GENERAL PERMIT TO DISCHARGE STORM WATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (PERMIT NO.NCG010000). ANY PERMIT
NONCOMPLIANCE IS A VIOLATION OF THE CLEAN WATER ACT AND MAY REQUIRE ENFORCEMENT
ACTION BY NCDEQ.
2. DISTURBED AREAS DRAINING GREATER THAN ONE ACRE MUST HAVE AN EROSION CONTROL
MEASURE THAT DRAINS FROM THE WATER SURFACE ELEVATION.
3. REQUIRED ARMY CORPS 404 PERMIT AND WATER QUALITY 401 CERTIFICATION MUST BE OBTAINED
FOR STREAM DISTURBANCES OVER 150 LINEAR FEET.
4. ANY BORROW OR WASTE MATERIAL SHALL BE TAKENIPLACED ON A SITE THAT HAS AN ACTIVE
APPROVED GRADING PERMIT. IF THIS IS NOT OBTAINABLE, THEN CONTRACTOR MAY SUBMIT PLAN
FOR APPROVAL TO NCDEQ PRIOR TO ANY OFF -SITE BORROWIWASTE AREAS BEING DENUDED AND
ANY GRADING OPERATIONS STARTING ON THIS SITE.
5. ANY GRADING BEYOND THE DENUDED LIMITS SHOWN ON THE PLAN IS A VIOLATION OF THE NCDEQ
EROSION CONTROL ORDINANCE AND IS SUBJECT TO A FINE.
6. GRADING MORE THAN ONE ACRE WITHOUT AN APPROVED EROSION CONTROL PLAN IS A VIOLATION
OF THE NCDEQ EROSION CONTROL ORDINANCE AND IS SUBJECT TO A FINE.
7. ANY AND ALL SITE FINES IMPOSED BY NCDEQ OR ANY OTHER GOVERNING AGENCY SHALL BE PAID BY
THE GRADING CONTRACTOR.
8. SLOPES SHALL BE GRADED NO STEEPER THAN 2:1. FILL SLOPES GREATER THAN 10, REQUIRE
ADEQUATE TERRACING.
9. TOTAL DENUDED AREA: 9.89 ACRES
10. SOIL TYPES: TARRUS GRAVELLY SILTY CLAY LOAM TbB2 TbC2 SECREST-CID COMPLEX ScA
11. RECEIVING STREAM: TWELVE MILE CREEK (CLASSIFICATION C)
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. Any time 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 (anc 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 (SDCs)
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
_
f
sheen floating or suspended solids or discoloration
g P
24 hours
5. indication of visible sediment leaving the site, e,
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 w to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible Increased turbidity from the construction
or offsite
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
q D
24 hours
After each phase
Regional Office per Part III, Section C, Item (2)(a) of this permr
- ---
1. The phase of grading (installation of perimeter E&SC
(6) Ground
stabilization
of grading
measures, clearing and grubbing, installation of storm
measures
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.
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 Il 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 Il
plan or complete, date and sign an inspection
P Ian.
report to Indicate compliance with
P P 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 11, 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
• Within 24 hours, an oral or electronic notification.
(a) Visible sediment
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 for a 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 cr 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
e Within 7calendardays, a report that includes an evaluation of the
122.41(m)(3))
quality and effect ofthe bypass.
(e) Noncompliance
- --- --- - -- -
• Within 24 hours, an oral or electronic notification.
with the conditions
e 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(I)(7))
prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCG01 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
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.
SECTION E: GROUND STABILIZATION
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
(HOW) 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 HQW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HQW 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
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
• 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 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.
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.
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 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.
?�r, ., !' NORTH CAROLINA
(.�I � I: 'Environmental Quality
NCGO1 GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19
f..
`r `�'' NORTH CAROLINA
( +i )}
i �. Environmental Quality
EFFECTIVE: 04/01 A 9
ONSITE CONCRETE WASHOUT
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BELOW GRADE *gFIT STRUCTURE ABOVE GRADE WASMUT 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.
CONSTRUCTION SEQUENCE:
IAZARDOUS 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
A. CONTACT NCDEQ EROSION CONTROL INSPECTOR TO INFORM HIM THAT CONSTRUCTION IS READY TO BEGIN.
B. CONDUCT A PRE CONSTRUCTION ONSITE MEETING WITH THE OWNER, CONTRACTOR, AND EROSION CONTROL INSPECTOR.
C. CLEARING ONLY AS NECESSARY, INSTALL CONSTRUCTION ENTRANCE, TEMPORARY DIVERSION SWALES, SKIMMER BASINS AND EROSION CONTROL DEVICES AS SHOWN ON SHEET
C300 FOR THE PRE -EROSION CONTROL PHASE. COMPLETE A SELF INSPECTION REPORT FOR THIS PHASE OF CONSTRUCTION (SEE SELF INSPECTION REQUIREMENTS, THIS SHEET).
D. TEMP. SEED ALL NEW DENUDED AREAS FROM THE INSTALLATION OF ANY NEWLY INSTALLED EROSION CONTROL MEASURES.
E. CLEAR REMAINING VEGETATION WITHIN PROJECT LIMITS IF NEEDED.
F. BEGIN BRINGING SITE UP TO GRADE. INSTALL TEMPORARY INLET PROTECTION, EROSION CONTROL DEVICES & TEMPORARY DIVERSION SWALES AS SHOWN ON SHEET C300 AS SITE
IS CONSTRUCTED TO FINAL GRADE. INSTALL ADDITIONAL INLET PROTECTION AS NEEDED WHEN SITE IS BEING BROUGHT UP TO GRADE AND STORM DRAINAGE IS INSTALLED.
G. COMPLETE SELF INSPECTION REPORT ONCE MEASURES ON C300 HAVE BEEN INSTALLED.
H. CONSTRUCT ALL HARDSCAPING.
G. SEE SEEDING SCHEDULE FOR SEED TYPE, DATES, AND RATES.
H. COMPLETE ALL CONSTRUCTION WITHIN THE DENUDED LIMITS.
I. EROSION CONTROL BASINS DIRECTLY AFFECTED BY THIS CONTRACT SHALL BE MAINTAIN EDIREMOVED UNDER THIS CONTRACT. DEVICES SHALL BE MAINTAINED TO MAX. 50%
CAPACITY UNTIL AREAS THEY SERVE ARE FULLY STABILIZED. MAINTAIN REMAINDER OF MEASURES AS INDICATED ON THE RESPECTIVE DETAILS.
J. PROVIDE PERMANENT GRASSING FOR ALL DISTURBED AREAS.
K. CONTACT NCDEQ FOR PERMISSION TO REMOVE EROSION CONTROL DEVICES.
L. REMOVE ALL EROSION CONTROL DEVICES. SPREAD AND SEED ACCUMULATED SEDIMENT.
M. CONSTRUCT ALL HARDSCAPING NOT INSTALLED WHILE THE EROSION CONTROL DEVICES WERE INPLACE.
N. ALL EROSION CONTROL MEASURES SHALL BE IN ACCORDANCE WITH THE N.C. EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL, U.S. DEPT. OF AGRICULTURE,
AND THE SCS EROSION CONTROL ORDINANCE.
O. THE CONTRACTOR SHALL DILIGENTLY AND CONTINUOUSLY MAINTAIN ALL EROSION CONTROL DEVICES AND STRUCTURES TO MINIMIZE EROSION. THE CONTRACTOR SHALL MAINTAIN
CLOSE CONTACT WITH THE NCDEQ SO THAT PERIODIC INSPECTIONS CAN BE CONDUCTED AT APPROPRIATE STAGES OF CONSTRUCTION.
P. SEE SHEET C505 & C506 REGARDING CONVERSION OF TEMPORARY SEDIMENT BASINS TO PERMANENT STORMWATER CONTROL MEASURES.
Q. ESTIMATED TIME BEFORE FINAL STABILIZATION IS 18 MONTHS.
•
adw
environments life
architecture planning interiors
six coliseum Centre
2815 coliseum Centre drive
suite 500
charlotte, north Carolina 28217
t] 704 379 1919
f] 704 379 1920
www.adwarchitects.com
benesch
Alfred Benesch & Company
2359 Perimeter Pointe Parkway, Suite 350
Charlotte, NC 28208
www.benesch.com
704.521.9880
Corp. NC License: F-1320
Project #17.000405
WAXHAW
TOWN
CAMPUS
4220
WAXHAW MARVI N RD.
WAXHAW, NC 28173
CONSTRUCTION
DOCUMENTS
EROSION CONTROL
NOTES
DATE
PROJECT NO
REVISIONS
NO DATE DESCRIPTION:
1.7.2022
20051
THIS DRAWING IS THE PROPERTY OF ADW ARCHITECTS, PA. AND
SHALL NOT BE REPRODUCED OR COPIED IN WHOLE OR IN PART. IT
SHALL NOT BE USED ON ANY OTHER PROJECT OR GIVEN TO ANY
OTHER COMPANY OR AGENCY WITHOUT THE CONSENT OF ADW
ARCHITECTS, PA.
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SHEET NUMBER C303