HomeMy WebLinkAbout2015-12-15 - DKE-15090CONTRACTOR SHALL NOTIFY "NC811" (811) OR (1-800-632-4949) AT
LEAST 3 FULL BUSINESS DAYS PRIOR TO BEGINNING CONSTRUCTION
OR EXCAVATION TO HAVE EXISTING UTILITIES LOCATED.
CONTRACTOR SHALL CONTACT ANY LOCAL UTILITIES THAT PROVIDE
THEIR OWN LOCATOR SERVICES INDEPENDENT OF "NC811".
REPORT ANY DISCREPANCIES TO THE ENGINEER IMMEDIATELY.
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Self Inspection and Reporting Requirements
Minimum self-inspection and reporting requirements are as follows unless otherwise approved in writing by the Division of
Water Quality.
a) A rain gauge shall be maintained in good working order on the site unless another rain-monitoring device has been
approved by the Division of Water Quality.
b) A written record of the daily rainfall amounts shall be retained and all records shall be made available to Division of
Water Quality or authorized agent upon request. If no daily rain gauge observations are made during weekend or holiday
periods, and no individual-day rainfall information is available, the cumulative rain measurement for those un-attended
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c) Erosion and sedimentation control measures shall be inspected to ensure that they are operating correctly. Inspection
records must be maintained for each inspection event and for each measure. At a minimum, inspection of measures must
occur at the frequency indicated below:
i)All erosion and sedimentation control measures must be inspected by or under the direction of the permittee at least
once every seven calendar days, and
ii)All erosion and sediment control measures must be inspected by or under the direction of the permittee within 24
hours after any storm event or greater than 0.50 inches of rain per 24 hour period.
d) Once land disturbance has begun on the site, stormwater runoff discharge outfalls shall be inspected by observation for
erosion, sedimentation and other stormwater discharge characteristics such as clarity, floating solids and oil sheens.
Inspections of the outfalls shall be made at least once every seven calendar days and within 24 hours after any storm event
of greater than 0.50 inches of rain per 24 hour period.
e) Inspections are only required to be made during normal business hours. When adverse weather conditions would cause
the safety of the inspection personnel to be in jeopardy, the inspection can be delayed until it is deemed safe to perform
these duties. (Times when inspection were delayed because of safety issues should be noted in the Inspection Record). If
the inspection cannot be done on that day, it must be completed on the following business day.
f) Twenty-four House Reporting for visible sediment deposition
i) The permittee shall report to the Division of Water Quality central office or the appropriate regional office any visible
sediment being deposited in any stream or wetland or any noncompliance which may endanger health or the
environment. (See Section VIII of this permit for contract information.) Any Information shall be provided orally or
electronically within 24 hours from the time the permittee became aware of the circumstances.
ii)A written submission shall be provided to the appropriate regional office of the Division of Water Quality within 5 days
of the time the permittee becomes aware of the circumstances. The written submission shall contain a description of
the sediment deposition and actions taken to address the cause of the deposition. The Division of Water Quality staff
may waive the requirement for a written report on a case-by-case basis.
g) Records of inspections made during the previous 30 days shall remain on the site and available for agency inspectors at all
times during normal working hours, unless the Division of Water Quality provides a site-specific exemption based on unique
site conditions that make this requirement not practical. Older records must be maintained for a period of three years after
project completion and made available upon request. The records must provide the details of each inspection including
observations, and actions taken in accordance with this permit. The permittee shall record the required rainfall and
monitoring observations on the Inspection Record form provided by the Division or a similar inspection form that is inclusive
of all of the elements contained in the Division's form. Use of electronically-available records, in lieu of the required paper
copies for inspection will be allowed if shown to provide equal access and ut8ility as the hard-copy records.
h) Inspection records must include, at a minimum, the following:
i)Control Measure Inspections: Inspection records must include at a minimum: 1) identification of the measures
inspected, 2) date and time of the inspection, 3) name of the person performing the inspection, 4) indication of
whether the measures were operating properly, 5) description of maintenance needs for the measure, 6) corrective
actions taken (7) date of actions taken, as well as the date and amounts of rainfall received.
ii)Stormwater Discharge Inspections: Inspection records must include at a minimum: 1) identification of the discharge
outfall inspected, 2) date and time of the inspection, 3) name of the person performing the inspection, 4) evidence of
indicators of stormwater pollution such as oil sheen, 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.
iii)Visible Sedimentation Found Outside the Site Limits: Inspection records must include: 1) an explanation as to the
actions taken to control future releases, 2) actions taken to clean up or stabilize the sediment that has left the site
limits and 3) the date of actions taken.
iv)Visible Sedimentation Found in Streams or Wetlands: All inspection should include evaluation of streams or wetlands
onsite or offsite (where accessible) to determine if visible sedimentation has occurred.
i) Visible Stream Turbidity - If the discharge form a site results in an increase in visible stream turbidity, inspection records
must record that evidence and actions taken to reduce sediment contribution. Sites discharging to streams named on the
state's 303(d) list as impaired for sediment-related causes may be required to perform additional monitoring, inspections or
application of more-stringent management practices if it is determined that the additional requirements are needed to assure
compliance with the federal or state impaired-waters conditions. If a discharge covered by this permit enters a stream
segment that is listed on the Impaired Stream List for sediment-related causes, and a Total Maximum Daily Load (TMDL) has
been prepared for those pollutants, the permittee must implement measures to ensure that the discharge of pollutants from
the site is consistent with the assumptions and meets the requirements of the approved TMDL. The Division of Water Quality
303(d) list can be found at: http://h2o.enr.state.nc.us/tmdl/General_303d.htm/
TYPICAL STOCKPILE DETAIL (NTS)
SKIMMER DETAIL
POROUS BAFFLE INSTALLATION DETAIL
STANDARD TEMPORARY SKIMMER BASIN
STANDARD TEMPORARY SKIMMER BASIN
TEMPORARY DIVERSION DITCH
TYPICAL DRAINAGE DITCH DETAIL
MAXIMUM DRIVEWAY TURNOUT GRADES
SUBSTATION GATE ENTRANCE DETAIL
OUTLET PROTECTION DETAIL
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WALL DESIGN
BEAR BRANCH SUBSTATION
BROADWAY, NORTH CAROLINA
Plan Sheet Index
R1............................Title Sheet & Notes
R2............................Wall 1 Plan and Face Elevation
R3............................Wall 1 (Cont) Wall Face Elevation
R4............................Wall 2 Plan and Face Elevation
R5............................Wall 2 (Cont) Wall Face Elevation
R6...........................Typical MSE Wall Section & Details
R7...........................MSE Wall Specifications
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