SWA000145_Construction Sequence_20220503

BCSC
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BATEMAN CIVIL SURVEY COMPANY
2524 Reliance Avenue
Phone: [phone]
Apex, North Carolina 27539
[e-mail]
DATE: March 21, 2022
PROJECT: Middleton Farms- Construction Sequence
PHASE I CONSTRUCTION SEQUENCE:
1. EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC)
MUST BE OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR.
2. OWNER/DEVELOPER/CONTRACTOR SHALL OBTAIN A COPY OF THE APPROVED EROSION
CONTROL PLAN AND MAINTAIN A COPY OF THE PLAN ON SITE THROUGHOUT DURATION OF
CONSTRUCTION.
3. OWNER/CONTRACTOR SHALL NOTIFY AND REQUEST BY COR AND NCDEQ DEMLR AT
PERM ITPORTAL.RALEIGHNC.GOV FOR A PRE -CONSTRUCTION MEETING PRIOR TO BEGINNING
ANY LAND DISTURBANCE ACTIVITIES.
4. CONTRACTOR TO DIG A TEST PIT WITHIN THE LIMITS OF THE BOTTOM OF THE STORMWATER
CONTROL MEASURE. CONTRACTOR TO HAVE A LICENSED SOIL SCIENTIST PERFORM AN
INFILTRATION TEST AT THE BOTTOM ELEVATION OF THE SCM AND IMMEDIATELY REPORT THE
INFILTRATION RATE TO THE ENGINEER.
5. OWNER/CONTRACTOR SHALL NOTIFY NCDEQ DEMLR AT PERM ITPORTAL.RALEIGHNC.GOV A
MINIMUM OF 72 HOURS BEFORE START OF CONSTRUCTION ON EACH PHASE.
6. ONLY CLEAR/GRADE ENOUGH TO INSTALL SEDIMENT CONTROL DEVICES AS SHOWN IN PHASE I.
7. INSTALL CONSTRUCTION ENTRANCE, CLEAN WATER DIVERSION DITCH AND TEMPORARY PIPE
AS INDICATED ON PLAN. INSTALL SILT FENCE, SILT FENCE OUTLETS AROUND THE PERIMETER
OF THE SITE. DISTURB ONLY THE AREAS NECESSARY FOR INSTALLATION. ALL DITCHES WILL BE
LINED TO TOP OF BANK.
B. CONTRACTOR SHALL IMMEDIATELY SEED, MULCH AND TACK ANY BARE SOILS BETWEEN THE
DOWNSTREAM TOE OF BASIN OR DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
9. INSTALL SILT BAG INLET PROTECTION AS SHOWN ON PLANS, SILT BAG INLETS SHALL BE
CONTINUOUSLY MONITORED DURING OPERATION.
10. ADJUST EROSION AND SEDIMENT CONTROL MEASURES AS NECESSARY FOR PROPER
OPERATION. INSTALL ADDITIONAL EROSION CONTROL MEASURES IF DETERMINED NECESSARY
BY INSPECTOR.
11. INSPECT ALL EROSION CONTROL DEVICES AFTER EVERY RAINFALL EVENT AND AT LEAST ONCE
PER WEEK. REPAIR AND CLEAN OUT AS REQUIRED.
12. NOTIFY NCDEQ DEMLR AT PERM ITPORTAL.RALEIGHNC.GOV FOR AN INSPECTION AFTER THIS IS
COMPLETED.
13. PROCEED TO PHASE 2 OF THE EROSION CONTROL SEQUENCE WHEN PHASE 1 MEASURES HAVE
BEEN COMPLETED, INSPECTED, AND APPROVED. ALL SEDIMENT BASINS AND RELEVANT
DIVERSIONS WILL BE MAINTAINED UNTIL PROJECT BUILD OUT.
14. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO CLOSE OUT
THE E&SC PLAN.
15. THE PERIMETER SILT FENCING SHALL BE MAINTAINED UNTIL ALL CONSTRUCTION IS
COMPLETED AND PERMANENT GROUND COVERAGE IS ESTABLISHED.
16. PER NPDES REQUIREMENTS, A RAIN GAUGE, SELF -INSPECTION RECORDS, PERMIT,
CERTIFICATE OF COVERAGE, AND S&E PLAN ARE REQUIRED TO BE MAINTAINED ON SITE AND
ACCESSIBLE DURING INSPECTION. IT IS RECOMMENDED THAT THESE ITEMS BE PLACE IN A
PERMITS BOX AT THE BEGINNING OR ENTRANCE OF PROJECT.

Bateman Civil Survey Company, PC
Page 2
PHASE II EROSION CONTROL CONSTRUCTION SEQUENCE:
1. MAINTAIN ALL EXISTING EROSION CONTROL FEATURES PREVIOUSLY CONSTRUCTED AND
ASSOCIATED WITH PHASE 2 EROSION CONTROL.
2. CONTINUE BRINGING FILL INTO THE SITE. IMPORTED MATERIAL WILL REQUIRE A PERMITTED
SITE APPROVAL BEFORE THIS PROCESS BEGINS. ALL FILL SHALL BE BROUGHT INTO THE SITE
AND EVENLY SPREAD OUT THROUGH THE SITE AS SHOWN IN LIFTS OF NO MORE THAT 1.0' AT A
TIME. FILL SHALL BE ROLL COMPACTED BY A DOZER OR EQUIVALENT AS IT IS PLACED.
3. BEGIN INSTALLATION OF THE STORM PIPE SYSTEM FROM JB201 TO OCS204.ONCE THIS RUN IS
COMPLETE, INSTALL SKIMMER SEDIMENT BASIN.
4. AFTER THE SEDIMENT BASIN IS CONSTRUCTED, CONTINUE INSTALLING STORM DRAINAGE
SYSTEM FROM OUTLET POINT (LOW END) AND WORK UPSTREAM. PIPE INLET PROTECTION
SHALL BE UTILIZED AT THE END OF EACH WORKDAY TO ASSURE PIPE NETWORK IS NOT
INUNDATED WITH SEDIMENT.
5. INSTALL SILT BAG INLET PROTECTION AS SHOWN ON PLANS, SILT BAG INLETS SHALL BE
CONTINUOUSLY MONITORED DURING OPERATION.
6. INSTALL SITE IMPROVEMENTS, STORMWATER DRAINAGE SYSTEM, UTILITY SERVICES,
SIDEWALKS AND DRIVES AS SHOWN ON THE APPROVED PLANS. ALL OPEN TRENCHES FOR
UTILITY AND STORMWATER INSTALLATION SHALL BE PROTECTED FROM SEDIMENTATION BY
PILING EXCAVATED MATERIAL ON THE UPHILL SIDE OF EXCAVATION.
7. INSTALL ADEQUATE EROSION AND SEDIMENT CONTROL MEASURES AND/OR INCREASE
MAINTENANCE FREQUENCY WHERE APPROVED MEASURES FAIL TO PREVENT ACCELERATED
EROSION, OFF -SITE SEDIMENTATION, OR REPETITIVE NON-COMPLIANCE ISSUES. ALL
MEASURES MUST BE INSTALLED PER PLAN DETAIL. ENSURE CONSTRUCTION TRAFFIC IS
LIMITED TO THE CONSTRUCTION ENTRANCE ONLY.
8. GROUND COVER SHALL BE PROVIDED AS FOLLOWS:
FOR ALL AREAS OF MODERATE AND/OR STEEP SLOPES, PROVIDE TEMPORARY GROUND
COVER OF THE SLOPE HAS NOT BEEN DISTURBED FOR A PERIOD OF FOURTEEN DAYS.
SLOPES GREATED THAN 3:1 REQUIRE GROUND COVER IN 7 DAYS.
PROVIDE GROUND COVER SUFFICIENT TO RESTRAINEROSION ON ANY PORTION OF THE
SITE UPON WHICH FURTHER LAND -DISTURBING ACTIVITY IS NOT BEING UNDERTAKEN
WITHIN FOURTEEN (14) CALENDAR DAYS OF TEMPORARILY OR PERMANENTLY
SUSPENDING LAND DISTURBING ACTIVITY.
ESTABLISH PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EORSION WITHIN
FOURTEEN (14) CALENDAR DAYS FOLLOWING COMPLETION OF CONSTRUCTION OR
DEVELOPMENT AND/OR PRIOR TO FINAL INSPECTION.
INSTALL SURB & GUTTER AND GRAVEL BASE.
10. MODIFICATIONS TO THE APPROVED AND PERMITTED PLANS SHALL BE APPROVED BY EROSION
CONTROL INSPECTIONS PRIOR TO REMOVAL OR INSTALLATION. CONTACT THE EROSION
CONTROL INSPECTOR TO OBTAIN SIGN -OFF ON THE PLANS.
11. MAINTAIN ALL EROSION AND SEDIMENT CONTROL MEASURES IN GOOD WORKING ORDER. SILT
FENCE, INLET PROTECTION, AND OTHER SIMILAR MEASURES MUST BE CLEANED OUT BEFORE
THEY ARE HALF FULL. CLOGGED STONE FILTERS MUST BE REFRESHED/REPLACED. SILT FENCE
CAN NOT HAVE HOLES OR TEARS.
12. IF THE SEDIMENT BASIN IS DRAINED FOR MAINTENANCE OR REMOVAL PURPOSES, IT SHOULD
BE FILTERED THROUGH A SILT BAG THAT IS CONTINUOUSLY MONITORED DURING OPERATION.
13. ONCE GRADING IS COMPLETE, ALL UTILITIES, AND ALL STORM SYSTEMS ARE INSTALLED AND
ALL AREAS UPGRADIENT FROM THE SEDIMENT BASIN AND THE SITE IS COMPLETELY AND
PERMANENTLY STABILIZED PER THE NPDES PLAN AND ABOVE, BEFORE BASIN IS REMOVED.
REMOVAL OF THE SEDIMENT BASIN OR CONVERSION TO PERMANENT SCM, PROCEED AS
FOLLOWS:
CONSULT WITH THE EROSION AND SEDIMENT CONTROL INSPECTOR PRIOR TO
BEGINNING REMOCAL OR CONVERSION OF SEDIMENT BASIN.

Bateman Civil Survey Company, PC
Page 3
PUMP DOWN BASIN- USE APPROVED DEWATERING MEASURES. EFFLUENT MUST BE
FILTERED.
REMOVE ACCUMULATED SEDIMENT, SEDIMENT MUST BE DISPOSED OF IN AN
APPROVED AREA.
REMOVE TEMPORARY SKIMMER AND BAFFLES.
REMOVE TEMPORARY ORFICE PLUGS FROM RISER AND CLOSE RISER DRAIN.
14. ADJUST EROSION AND SEDIMENT CONTROL MEASURES AS NECESSARY FOR PROPER
OPERATION. INSTALL ADDITIONAL EROSION CONTROL MEASURES IF DETERMINED NECESSARY
BY INSPECTOR.
15. INSPECT ALL EROSION CONTROL DEVICES AFTER EVERY RAINFALL EVENT AND AT LEAST ONCE
PER WEEK. REPAIR AND CLEAN OUT AS REQUIRED.
16. NOTIFY NCDEQ DEMLR AT PERM ITPORTAL.RALEIGHNC.GOV FOR AN INSPECTION AFTER THIS IS
COMPLETED.
17. EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC)
MUST BE OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR.
18. PROCEED TO PHASE 3 OF THE EROSION CONTROL SEQUENCE WHEN PHASE 2 MEASURES HAVE
BEEN COMPLETED, INSPECTED, AND APPROVED.
19. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO CLOSE OUT
THE E&SC PLAN.
20. THE PERIMETER SILT FENCING SHALL BE MAINTAINED UNTIL ALL CONSTRUCTION IS
COMPLETED AND PERMANENT GROUND COVERAGE IS ESTABLISHED.