20210256 Ver 1_12-02-22 On-Site Meeting - Follow up Summary_20221221

Baker, Caroline D
From: Andrew Grant <[e-mail]>
Sent: Wednesday, December 21, 2022 11:53 AM
To: Jamie Hopkins; Chad Waldrup
Cc: Brian Collins; Brower, Taylor; Thomas Garrison; joseph.alm; Hoy, Joseph K; Pitner,
Andrew
Subject: [External] RE: Harper Landing 12-02-22 On -Site Meeting - Follow up Summary
Attachments: 2022-1220 - EC Observations - Harper Landing.pdf
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
All,
Good morning. Please see the attached EC plan with markups from the two BGE Site Visits and the additional
erosion control measures installed by JE Jenkins and documented below. If the attached is agreeable to everyone, we
will ensure this gets included in the SWPPP with a copy kept onsite.
Thanks,
Andrew Grant, PE
Director, Land/Site
Associate
Main: 980-220-2322
Cell: 803-322-7510
Serving. Lf,,,�ding. Sviving."
From: Jamie Hopkins <[e-mail]>
Sent: Thursday, December 15, 2022 7:21 AM
To: Chad Waldrup <[e-mail]>
Cc: Brian Collins <[e-mail]>; Brower, Taylor <[e-mail]>; Thomas
Garrison <[e-mail]>; Andrew Grant <[e-mail]>; Joseph D. Alm
<[e-mail]>; [e-mail]; [e-mail]
Subject: Re: Harper Landing 12-02-22 On -Site Meeting - Follow up Summary
Chad just wanted to shoot you some pictures of progress.

2

3

icy - r_ - � _ .'L-t. h'
.�`f i riJ f '� n �f ri Y�IJ77 �F'' _
.:+�t�.a�l� 1. - �:

El

Ord'-
/' -I
6

7

-Olt
Z,. MA

,�ft -%
I
WNW
-9r." Weal"
Prey,

10

L
# i 4
T��y 4L

12

13

14

15

I
Jamie Hopkins
Superintendent
John E. Jenkins Inc.
M— 912-665-5754
iamieh @ie'enkins. com
On Dec 6, 2022, at 3:22 PM, Jamie Hopkins <[e-mail]> wrote:
Chad, just a follow up with you. We got the berm and All done at pond one and a few more diversion
out in. Also most of silt fence repaired. We still have several things to complaint but Mother Nature is
mad at us at the moment.
Jamie Hopkins
Superintendent
16

John E. Jenkins Inc.
M— 912-665-5754
[e-mail]
On Dec 6, 2022, at 3:01 PM, Chad Waldrup <[e-mail]> wrote:
0
This email is a follow up summary of the on -site meeting and site visit held on Friday
December 2nd, 2022. The site is currently under a Notice of Violation (NOV) and remains
under an NOV status. Below is a list of observations made by Gaston County Natural
Resources Staff:
1. Observed additional sedimentation migration past limits of disturbance into a
previously impacted and noted wetland and intermittent stream located
between Basin 1 and Basin 2. The intermittent stream was flowing with no
blockages comprised of sediment; however, pockets of sediment lined the
channel downstream to the confluence with South Stanley Creek. Majority of
the sediment deposition was located on property between Basin 1 and 2. No
sediment deposition was observed at the confluence or in South Stanley Creek
beyond the confluence. However, turbidity was present in South Stanley Creek.
2. Observed sedimentation migration past limits of disturbance along perimeter
measures (mainly at silt fence outlets) along the southside of South Stanley
Creek. No sediment deposition was visible in South Stanley Creek, however
there were pockets of sediment deposition between perimeter measures and
the top of bank.
3. Sediment basins 1, 2, 3, and 7 were all discharging via their respective skimmer
devices. Sediment Basin 7 discharge was crossing an area of disturbed site and
exiting the site via silt fence outlets into South Stanley Creek.
4. Efforts to clean up sediment past limits of disturbance were underway by crews
utilizing shovels and buckets.
5. Efforts to remove accumulated sediment along interior of perimeter measures
were underway.
Summary of discussions and recommendations on moving forward with the project:
1. Design Engineer to submit revisions on additional measures to be utilized in
problem areas of site and verify additional measures already in place.
2. Ensure all diversion ditches are functioning per design and draining to sediment
basins. Utilize temporary pipes to cross diversion ditches.
3. Ensure sediment basins are functioning properly. Basin 7 ensure north -facing
dam is higher than emergency spillway, correct any low spots in top of dam, and
verify skimmer orifice size in skimmer device is per design.
4. Offsite water (i.e. water tower discharges, road runoff) should be diverted to
existing diversion ditches and basins (assuming basins are designed to handle
the additional runoff amounts), or the offsite water should be treated as clean
water and clean water bypass(es) should be submitted as a plan revision.
5. Ensure all perimeter measures are cleaned up, reinforced as needed, and
functioning properly. It may be necessary to utilize j-hooks along perimeter silt
fence and increase size of plunge pools at silt fence outlets.
6. Stabilize or provide ground cover on all disturbed areas (including stockpiles)
that are not currently being worked to aid in minimizing erosion.
17

Continue clean up efforts and working toward addressing corrective actions in the
current Notice of Violation which was issued on 11-21-22. Staff will be on site to
perform a follow up inspection on the compliance date of 12-21-22. Please call or email
with any questions or concerns. Thanks,
<i mage001.j pg>
Chad Waldrup
Conservationist III
CESSWI, CPESC
Natural Resources Department
Gaston SWCD
704.922.2153
1303 Dallas Cherryville Hwy.
Dallas, NC 28034
www.gastongov.com
This message may contain confidential information and is intended only for the
individual named. If you are not the named addressee you should not disseminate,
distribute or copy this email. Please notify the sender immediately by email if you have
received this email by mistake and delete it from your system. Emails that do not
contain confidential medical information are subject to North Carolina General Statute,
Chapter 132 and may be considered a matter of public record.
18

,
2 . •
A.. tr: :VC
."•••
.74 %
4.'"V.
• " • nt
•
iitk era./
.4jett
r'
.

7. • -
_
•• •

` %." • +vq^ ,�a.
r.,!

: •
fr
•;:•,•(, ;•"..
b•T ' • 7".
• •
4.
" .; • 4:: '..;•
"

Attl
)' l

0
o100
Qo
J • 0
M ,. IZ
0 I—
J
0
ti
Moy
O9
GENERAL EROSION CONTROL CONSTRUCTION SEQUENCE
THE FOLLOWING CONSTRUCTION SEQUENCE IS FURNISHED AS A GENERAL GUIDE FOR PREPARATION OF
A SEQUENCE OF CONSTRUCTION EVENTS. ADDITIONS, DELETIONS, AND MODIFICATIONS SHOULD BE
COORDINATED WITH THE ENGINEER AND GASTON COUNTY INSPECTOR.
PHASE 1:
PHASE 2:
1. OBTAIN GRADING/ EROSION CONTROL PLAN APPROVAL FROM THE TOWN OF STANLEY AND GASTON 11.
COUNTY NATURAL RESOURCES DEPARTMENT.
2. THE CONTRACTOR SHALL SET UP AN ON -SITE PRE -CONSTRUCTION CONFERENCE WITH COUNTY EROSION
CONTROL INSPECTOR TO DISCUSS EROSION CONTROL MEASURES. FAILURE TO SCHEDULE SUCH
CONFERENCE 48 HOURS PRIOR TO ANY LAND DISTURBING ACTIVITY IS A VIOLATION AND IS SUBJECT TO 12.
FINE.
3. INSTALL SWPPP SIGN AND TEMPORARY CONSTRUCTION ENTRANCE.
4. CONTRACTOR TO INSTALL CONSTRUCTION ENTRANCE, SILT FENCE WITH SILT FENCE CONCENTRATION
OUTLETS, SKIMMER SEDIMENT BASINS AND SEDIMENT BASINS WITH INFILL AREAS AND TEMPORARY
DIVERSION DITCHES WITH CHECK DAMS AS SHOWN ON PLANS, CLEARING AND GRUBBING ONLY AS
NECESSARY TO INSTALL THESE DEVICES. (MASS GRUBBING NOT TO HAPPEN UNTIL AFTER EROSION
CONTROL MEASURES ARE FULLY INSTALLED AND INSPECTED BY GASTON COUNTY INSPECTOR)
BEGIN EARTHWORK/GRADING ACTIVITIES. MAINTAIN AND VERTICALLY ADJUST ALL INLET PROTECTION
DEVICES, DITCHES, AND SILT FENCE THROUGHOUT GRADING ACTIVITIES TO MAINTAIN DRAINAGE
PATTERNS. CONTRACTOR TO ENSURE ALL EROSION CONTROL MEASURES DO NOT ADVERSELY AFFECT
CONSTRUCTABILITY OF PROJECT.
CONTRACTOR TO ENSURE TEMPORARY DITCHES ARE STABILIZED AFTER VERTICALLY ADJUSTING AND ALL
CHECK DAMS ARE MAINTAINED.
13. AS EARTHWORK ALLOWS, BEGIN INSTALLING STORM DRAINAGE STRUCTURES AND UTILITIES. AS STORM
DRAINAGE IS INSTALLED, CONTRACTOR SHALL PLACE INLET PROTECTION ON ALL STORM STRUCTURES.
NO PIPES SHALL BE LEFT EXPOSED AT THE CLOSE OF BUSINESS EACH DAY.
14. INSTALLATION OF SOUTH STANLEY CREEK CULVERT AND SEWER PIPE CROSSINGS SHALL BE AVOIDED
UNTIL CONTRACTOR IS PREPARED TO INSTALL PERMANENT INFRASTRUCTURE. ALL WORK IN CREEKS AND
WETLANDS SHALL BE IN ACCORDANCE WITH USACE AND NCDEQ PERMITS.
5. PRIOR TO DRAW INFILL NEXT TO SKIMMER SEDIMENT BASIN SB7, DOGHOUSE MANHOLES DH-MH#1 AND 15.
DH-MH#2 ALONG WITH 240.00 LF OF TEMPORARY SEWER PIPE NEED TO BE INSTALLED TO REMOVE
EXISTING SEWER ALIGNMENT FROM FUTURE PROPOSED RIGHT OF WAY. (SEE SHEET C2-4) INSTALL
PROPOSED TEMPORARY FORCEMAIN REALIGNMENT TO PARALLEL TEMPORARY GRAVITY SEWER.
EXISTING FOREMAIN AND GRAVITY SEWER PIPE AND STRUCTURES BEING BYPASSED BY TEMPORARY PIPE 16.
ARE TO BE REMOVED PRIOR TO BACK FILL.
6. DURING BACK FILL PROCESS OF INFILL AREA NEXT TO SKIMMER SEDIMENT BASIN SB7 INSTALL
TEMPORARY 240.00 LF OF 24" HDPE PIPE TO DISCHARGE NATURAL DRAW TO BASIN SB7.
7. ALL INFILL AREA SLOPES TO BE STABILIZED AS SHOWN ON PLANS AS SOON AS POSSIBLE BUT NO LATER
THAN 7 DAYS.
8. WITH INFILL AREAS COMPLETE, THE REMAINING TEMPORARY DITCHES WITH CHECK DAMS CAN BE
INSTALLED AS SHOWN ON PLANS TO DIRECT STORMWATER RUNOFF TO THE DETENTION BASINS.
9. SCHEDULE AN ON -SITE INSPECTION BY COUNTY INSPECTOR. WHEN APPROVED, INSPECTOR ISSUES THE
GRADING PERMIT AND CLEARING AND GRUBBING OF REMAINDER OF SITE MAY BEGIN.
co�cn —10.
0 C
W
W(
CONTRACTOR INSTALLED ENHANCED
SF OUTLET AND REPAIRED BUFFER
CONTRACTOR INSTALLED ENHANCED
SF OUTLET WITH STORAGE
-1
r _ ^ TEMPORARY PIPE
THE CONTRACTOR SHALL DILIGENTLY AND CONTINUOUSLY MAINTAIN ALL EROSION CONTROL DEVICES
AND STRUCTURES.
Jt 200.0 LF 24" HDPE
INV. UP: 772.00
INV. DOWN: 771.00
s, SLOPE: 0.50%
CONTRACTOR TO VERIFY BERM
ELEVATION AND CONSISTENCY
\tic\
Ali
NO CONSTRUCTION TRAFFIC SHALL ENTER ,
OR EXIT SITE UTILIZING RIDGE DRIVE
UPON COMPLETION OF STORM SEWER SYSTEM CONVEYING STORMWATER TO SB-3 OR SB-4, SKIMMER
SEDIMENT BASINS SB5, SB6, AND SB7 TO BE FILLED AND ALL TEMPORARY STRUCTURES AND
APPURTENANCES TO BE REMOVED AFTER INSPECTOR APPROVAL.
UPON THE COMPLETION OF OFFSITE SEWER AND PROPOSED PUMPSTATION AND FORCEMAIN ARE ACTIVE,
ALL EXISTING SEWER LOCATED IN FUTURE PROPOSED RIGHT OR WAY OR UNDER PROPOSED PERMANENT
STRUCTURES IS TO BE REMOVED. REMAINING EXISTING SEWER TO BE FILLED WITH FLOWABLE FILL AND
ABANDONED IN PLACE.
17. DILIGENTLY AND CONTINUOUSLY MAINTAIN ALL EROSION CONTROL DEVICES AND STRUCTURES TO
MINIMIZE EROSION. THE CONTRACTOR SHALL MAINTAIN CLOSE CONTACT WITH THE COUNTY INSPECTOR
SO THAT PERIODIC INSPECTIONS CAN BE PERFORMED AT APPROPRIATE STAGES OF CONSTRUCTION.
18. GRADED SLOPES AND FILLS ARE TO BE PLANTED OR PROVIDED WITH PROTECTIVE COVER SUFFICIENT TO
RESTRAIN EROSION WITHIN 7 CALENDAR DAYS AFTER THE COMPLETION OF ANY PHASE OF GRADING. ALL
AREAS UPON WHICH NO FURTHER LAND DISTURBING ACTIVITY WILL BE UNDERTAKEN ARE TO BE PLANTED
OR PROVIDED WITH PROTECTIVE COVER WITHIN 14 CALENDAR DAYS.
19. ALL EROSION CONTROL MEASURES SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE N.C. EROSION
AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL, U.S. DEPT. OF AGRICULTURE, GASTON COUNTY
SOIL EROSION AND SEDIMENTATION CONTROL ORDINANCE,
20. AS AREAS ARE BROUGHT TO FINISHED GRADE, CONTRACTOR TO INSTALL FINAL GRASSING AND STABILIZE
ALL SLOPES PER THE EROSION CONTROL NOTES AND DETAILS AND LANDSCAPE PLAN AND DETAILS.
ji _ _ �� 21. CONTRACTOR SHALL COORDINATE WITH THE EROSION CONTROL INSPECTOR PRIOR TO REMOVAL OF
f j� = ��\ �\_ EROSION CONTROL MEASURES.
s,. �\\ t5 )l; /
\=:_...,-:-.-\\>t \
FILL, STABILIZE AND
FINALIZE SB-3
CONSTRUCTION
DIVERT AS MUCH WATER
TO SB-2 AS PRACTICAL
e
W
CONTRACTOR HAND REMOVING
SEDIMENT BEYOND THE SILT FENCE
CONTRACTOR HAS
i\ MATTED SLOPE
OA
\� 1
•-
ENSURE DIVERSION IS
INSTALLED INCLUDING
CHECK DAMS
T
EROSION CONTROL LEGEND
p N T T T 7 Z
600
— — —601— — — — —
600
601
DA#
±X.X AC J
H:V X.X%
100.XX � °i 100.XX
watztztgi
PF
4'
SF PF
CF
HZ
PROPERTY LINE
EXISTING MAJOR CONTOUR
EXISTING MINOR CONTOUR
PROPOSED MAJOR CONTOUR
PROPOSED MINOR CONTOUR
DRAINAGE AREA
DRAINAGE AREA LABEL
SOIL TYPE
DIRECTION OF OVERLAND FLOW
DIRECTION OF OVERLAND FLOW
RIP RAP APRON
CONSTRUCTION EXIT
EROSION CONTROL MATTING
(NAG S75)
LIMITS OF DISTURBANCE
TEMPORARY JUTE NETTING BAFFLES (700
G/M2 COIR FABRIC OR HEAVIER)
TEMPORARY DIVERSION DITCH OR BERM
TEMP SILT FENCE WITH OUTLET
TEMP TREE PROTECTION FENCE
TEMP SILT / TREE PROTECTION FENCE
TEMP CONSTRUCTION FENCE
TEMPORARY HIGH HAZARD FENCE
SILT SOCK / WATTLE CHECK
DAM
SEDIMENTATION CHAMBER BERM
SLOPE DRAIN WITH RIP -RAP APRON
TEMPORARY RISER SKIMMER SEDIMENT
BASIN
STONE FILTER RING
HARDWARE CLOTH AND GRAVEL INLET
PROTECTION
CATCH BASIN INLET PROTECTION
CONCRETE WASHOUT
CONTRACTOR TO DIVERT WATER TOWER
DISCHARGE AROUND DISTURBED AREA
BGE NOTES:
- 9/14/2022 OBSERVATIONS AND RECOMMENDATIONS
- 12/2/2022 OBSERVATIONS AND RECOMMENDATIONS
- CONTRACTOR INSTALLED ADDITIONAL EC MEASURES
REVISED PER SEWER
REVISED PER STANLEY 2ND ROUND COMMENTS
REVISED PER STANLEY 1ST ROUND COMMENTS
REVISED PER GASTON COUNTY COMMENTS
DESCRIPTION
03/01 /2022
08/13/2021
06/09/2021
04/20/2021
DESIGNED BY: LK / AB
DRAWN BY:
REVIEWED BY:
AG
Lo
LIJ
tolit?
n :
o
er
LIJ
0 IN
00
cN
rrj
MERITAGE HOMES
SUITE 300
CHARLOTTE / NC /28277
0
_1 Lij
03
cN
CD c7[
o
Lu
o
Lu
Lu
TOTAL DISTURBED AREA
Know what's below.
Call before you dig.
044291
FILE NUMBER:
6835-00
DATE: 03/19/2021