20170239 Ver 2_TIP U-3109A Mebane Bypass Inspection Report 20210422_20210604

Sedimentation/Construction Stormwater Inspection Report
North Carolina Department of Environmental Quality
Land Resources: 450 W. Hanes Mill Road, Suite 300,Winston-Salem,NC 27105
[phone]
County: Alamance Project: TIP U-3109A Mebane Bypass River basin: Cape Fear
Person financially responsible:NCDOT Project#: ALANIA-2021-301
Address:As noted in the NOV.
1. Project Location: NC HWY 119,Mebane
Pictures: Yes-Digital
2. Weather and soil conditions: 50's,Clear,Workable Initial inspection: Yes
3. Is site currently under notice of violation? No
4. Is the site in compliance with S.P.C.A.and rules? No If no,check violations below:
5. Violations:
✓ b.Failure to follow approved plan,G.S. 113A-57(5),G.S. 113A-57(5)
✓ e.Insufficient measures to retain sediment on site,G.S. 113A-57(3),G.S. 113A-57(3)
✓ £Failure to take measures to protect property, 15A N.C.A.C.413.0105, 15A NCAC 413.0105
✓ g.Inadequate buffer zone,G.S. 113A-57(1),G.S. 113A-57(1)
✓ j.Failure to install and maintain measures, 15A N.C.A.C.413.0113, 15 NCAC 413.0113
6. Is the site in compliance with NPDES Permit NCGO10000 Construction Stormwater requirements? No
Describe:
7. Has sedimentation damage occurred since last inspection? Yes If Yes,where? (check all that apply)
✓ Lake/Natural watercourse off the tract
✓ Lake/Natural watercourse on the tract
✓ Other Property
Description: Sediment loss at multiple points into jurisdictional stream draining to private pond.
Degree of damage: Slight
8. Contact made with(name): Aaron Harper Title: NCDOT Roadside
Inspection report: Sent Report Date given/sent: With NOV.
9. Corrective action needed:
1. Maintain all basins examined during the inspection (ID 15.5, the breached pond, 15.4, HB 1,
27.4, and 27.3; may not be all inclusive). For all affected basins, the front bays should be
mucked out, baffles installed, re-installed, or replaced. The skimmers shall be checked for
function or sizing as none appeared to be dewatering. The surrounding slopes shall be
stabilized,weir and spillway fabric secured,and dissipation pads installed per plan.
2. Ensure that all temporary diversions flow into retention devices. Construction stormwater is
bypassing HB 1 (currently being used as a sediment basin).

Sedimentation/Construction Stormwater Inspection Report
North Carolina Department of Environmental Quality
Land Resources: 450 W. Hanes Mill Road, Suite 300,Winston-Salem,NC 27105
[phone]
Remove all sediment lost off site and/or to jurisdictional waters. A few areas of sediment loss
3. were observed, most notably in the jurisdictional stream between HB 1 and basin 15.4, and
behind SSCF outlets along Y16RPA, between basin 27.3 and the -L- intersection. These also
lead to the jurisdictional stream. Any areas of loss occurring behind silt fence, SSCF outlets,or
outside LODs in general need to be removed immediately. Any areas previously matted or
seeded/strawed that contain lost sediment need to have lost sediment removed, and the areas
re-stabilized. Removed sediment should be stockpiled or graded onto areas at least 50 feet from
surface waters and stabilized.
4. Review and evaluate the turbidity curtain installed in the private pond. A qualified individual
should evaluate and ensure the type,proper installation, and maintenance of the turbidity curtain
for the private pond.
5. Remove the sediment discharges to the private pond. Permission from the landowner must be
obtained prior to initiating cleanup activities. Additional restoration activities may be required
to restore the pond to a natural stable condition when sediment removal activities have been
completed. Approval of clean up and restoration activities in the pond must also be obtained
from DWR.
6. Provide assurances that erosion control measures are/were based on Design Standards for
Sensitive Watersheds where required throughout the project as this site is in High Quality Waters.
10. Comments: On April 27, 2021,Kimberly Turney and Tyler Pearson of the North Carolina Department of
Environmental Quality Division of Energy,Mineral, and Land Resources (DEMLR)Winston
Salem Regional Office conducted an on-site inspection of NCDOT Project TIP U 3109
(Mebane Bypass), in Alamance County. The site was inspected due to a complaint by the
owner of a private pond in the vicinity of the project between L Sta 160+00 and Sta
165+00. The owner stated his pond has grown increasingly murky since the beginning of the
project. He further stated the turbidity curtain installed in the pond has broken free at least
twice(he allowed the use of his personal boat to assist in its reattachment/reinstallation), and
that no efforts to clean collected sediment or to address the condition of the pond has been
made thus far.
The private pond appeared highly turbid and opaque. The mouth of the pond in front of the
turbidity curtain, with the exception of the visible collected sediment to the left and right of
the pipe, is currently clear. This is consistent with the acknowledged use of polyacrylamide
(PAM) on upstream measures mixing with the suspended solids/aggregates until reaching the
turbidity curtain and settling. Project representatives acknowledged that the turbidity curtain
has broken free twice. It is unknown how much accumulation had occurred at the mouth of
the pond prior to its failure both times, and therefore unknown how much sediment loss has
actually occurred. Turbidity in the pond is significant enough to have caused downstream
deposition of sediment from the riser outlet of the dam into the stream below.
NPDES records maintained by the contractor and ESS reports from NCDOT Roadside
Environmental Unit from approximately November, 2020 to March, 2021 were reviewed;
NPDES records were listed as not reviewed on ESS reports during this time. The closest
rainfall events prior to the inspection occurred on 4/14/2021 in the amount of 1/8", and
3/31/3031 in the amount of 1/2". The NPDES reports documented needed repairs to the
turbidity curtain and sediment loss into jurisdictional streams (JS) in areas upgradient of the
pond,as well as other losses of sediment outside limits of disturbance(LOD).
Losses were not reported as is required to either the Division of Energy,Mineral,and

Sedimentation/Construction Stormwater Inspection Report
North Carolina Department of Environmental Quality
Land Resources: 450 W. Hanes Mill Road, Suite 300,Winston-Salem,NC 27105
[phone]
Land Resources (DEMLR) or the Division of Water Resources (DWR) within 24 hours of
loss. Dave Wanucha with the Division of Water Resources Winston Salem Region Office
visited the site on April 27,2021 and requested turbidity testing of the private pond.
Reported by: Kimberly Turney Others present: Tyler Pearson
Date of inspection: April 22,2021 Time arriving on site: 9:00 AM Time leaving site: 11:30 AM
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