20100852 Ver 1_More Info Received_20101202

MUNICIPAL ENGINEERING SERVICES CO., P.A. TRANSMITTAL
Post Office Box 97 Post Office Box 349 Post Office Box 828
Garner, N.C. 27529 Boone, N.C. 28607 Morehead City, NC 28557
[phone] [phone] [phone]
FAX [phone] FAX [phone] FAX [phone]
TO NCDENR
Please find enclosed:
DATE 12/01/10 PROJ.
NO.
ATTENTION Ian McMillan
RE: Copy of water quality letter and plan
for Town of Wilkesboro
COPIES DATE DESCRIPTION
1 12/01/10 Copy of water quality letter and plan for Town of Wilkesboro
TRANSMITTED BY: Ben Clawson, P.E.
1 7-U @ Lz zI
DE v LUiU
wAyFn QUALITY
V&RANDS AND c r0R!l,"fc:4T:R ERANCN
If enclosures are not as noted, kindly notify us at once.
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
CERTIFIED MAIL: 7010 0290 0001 4856 4539
RETURN RECEIPT REQUESTED
Ken Noland, Town Manager
Town of Wilkesboro
203 West Main St.
Wilkesboro, NC 28697
Re: Section 401 Water Quality Certification application
Dear Mr. Noland:
November 18, 2010
DWQ# 10-0852
Wilkes County
On October 18, 2010, the North Carolina Division of Water Quality (Division) received a copy of your application for a
401 General Water Quality Certification to temporarily impact 20 feet of Moravian Creek for the Wilkes Community
College Sewer Replacement Project in Wilkesboro, NC in Wilkes County. Additional information is required in order
that we may determine your project's compliance with 15A NCAC 2H.0500. The Division will require this information
in order to process your application to impact protected wetlands and/or streams on the subject property. Therefore, we
will place this project on hold as incomplete until we receive this additional information, and if we do not receive the
additional information requested below, we will have to move toward denial of your application as required by 15A
NCAC 2H.0506. Please provide the following information so that we may continue to review your project.
Per the requirements of GC 3819, all work must be done "in the dry". Therefore, dewatering methods will be
necessary to temporarily de-water the stream channel during pipe installation. Please provide a construction
sequence that details the method of dewatering to be utilized at the site and the sequence of construction
events to be followed to ensure compliance with this condition.
Please provide a construction sequence and details (plans/drawings) that detail the restoration of the
temporary impact area upon completion of the project.
Please respond in writing within 30 calendar days of the date of this letter by submitting two copies of this information;
one copy should be submitted to Sue Homewood at the address on this letterhead, and one copy to Ian McMillan N. C.
Division of Water Quality, Wetlands/401 Certification Unit, 1650 Mail Service Center, Raleigh, NC 27699-1650. If you
will not be able to provide the requested information within that timeframe, please provide written confirmation that you
intend to provide the requested information, and include a specific timetable delineating when the requested materials will
be provided. If we do not hear from you in 30 calendar days, we will assume that you no longer want to pursue this
project and we will consider the project as returned.
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquafity.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturallff
Ken Noland
DWQ# 10-0852
November 18, 2010
Page 2 of 2
This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected
buffers. Please be aware that any impacts requested within your application are not authorized (at this time) by the
Division. If you have any questions, please contact me at 336-771-4964 or [e-mail].
Sincerely,
c? ? S?
Sue Homewood
DWQ Winston-Salem Regional Office
cc: Monte Matthews, U. S. Anny Corps of Engineers, Raleigh Regulatory Field Office (via email)
Ben Clawson, Municipal Engineering Services Co. PA (via email)
DWQ Winston-Salem Regional Office
DWQ Wetlands/401 Unit
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CONSTRUCTION SEQUENCE:
SILT FENCE / I 1. OBTAIN 401 PERMIT FROM NCDER WATER QUALITY
SECTION. eJ
(TYP) ~ ' I
2. INSTALL CONCRETE "JERSEY°' BARRIERS TO DIVERT
O CREEK FLOW TOAPPROXIMATELY % WIDTH OF EXISTING I'°
CREEK CHANNEL. SEE PLAN AND DETAIL.
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USE .SA r{ ,,gym ~+C.p_ ~y~ , a a ~Ar.~w~+ ®,.a~p. ~ _ . 1D~e4. i~ T® ii G„YiL S.f. ~ A~i.. +,~e .-i~.. n*.T a7 3~~ ~i:^rf~.f11EY'a
STILLING BASIN / ~ ~ ~ ~ ~ WALLS.
WITH OUTLET ~ o> 4. DIG SUMP HOLE FOR SUMP PUMP(S) FOR THE PURPOSE
OF DE-WATERING THE WORK AREA. MATERIAL EXCAVATED
PIPE ~ i ' FOR SUMP SHALL BE PLACED OUT OF THE CREEK CHANNEL
AND AWAY FROM EDGE OF BANK.
a
M 5. PLACE SUMP PUMP(S) IN SUMP AND DISCHARGE TO
PERMEABLE STILLING BASIN UPON BANK. SEE PLAN & DETAIL.
M STONE DRAIN
o ex. edge 6. DE-WATER WORI(AREA.
of creek
0 8„ 7. CHECK STILLING BASIN TO ENSURE IT IS OF SUFFICIENT MAX. FOR SIZE TO TREAT SUMP PUMP DISCHARGE. ENLARGE AS
SPACER
EARTH DIKE NECESSARY.
8. INSTALL SANITARY SEWER I IN LIMITS OF DRY WORK
AREA ~ PLUG END OF MAIN.
NTS I
0 9. BACKFILL NEW SANITARY S R MAIN IN CREEKBED
~ o WITH SUITA~LE'BACKFILL MATERIAL IN ACCORDANCE WITH
o 8" PIPE FOR THE PROJECT SPECIFICATIONS. 4'•0"
OVERDRAW 10. PERFORM THE STREAMBANK REPAIR PER DETAIL. ALL
° CLASS "B" RIP-RAP ex. ground surface .1 COMPACTED EARTH AREAS OF STREAMBANK REPAIR SHALL BE LINED WITH tTH PERMEABLE MIIFI 500-X STABILIZATION FABRIC OR APPROVED EQUAL.
IAL STONE DRAIN ~
(MIN. IH~~ THICK) MATERIAL
IL I VIEW 11. PLACE LARGE RIP-RAP (NCDOT CLASS 1 S 2) AT BASE ~ ~
AND 5 UP STREAMBANK, 30 THICK, REMAINDER OF ~ CL
a STREAMBANK SHALL BE LINED WITH CDOT CLASS B o
3 . CLASS "1&2" RIP-RAP MIX RIP-RAP MINIMUM 18'° THICK. ALL RIP-RAP SHALL BE Z
COMPACTED WITH THE BUCKET OF A TRACK HOE UNTIL ~
N COMPACTED ~ (MIN. 30" THICK) ~J; G~ BACKFILL. l ~ ' ~ SOLID. HAND PLACEMENT MAY NECESSARY iN SOME
NTS AREAS.
12. REMOVE ANY SOIL STOCKPILES, FILL STILLING BASIN ~
ex. stream bed AND SEED AND MULCH ALL DISTURBED AREAS ACCORDING
\~~~~iisddd~~, TO PROJECT SPECIFICATIONS.
MIRIFI 500-X STABILIZATION FABRIC OR i~ ~ ,
APPROVED EQ~IAL ~ 5~ ° o~ ~ 13. OVE ALL EQUIPMENT T THE SIDE OF CREEK. m
~ ~ ~ ° ~ SEAL 9~ : ~ (WEST) ~1~
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° ~ 14. REPEAT STEPS 1.13 IN ORDER T COMPLETE THE
~`~%~~~d~~°~ °~,~.P~~` INSTALLATION OF THE SANITARY ER MAIN CROSSING, Q
~ ~ TEMPORARY PLUG UNT g 18" HDPE J FROM WEST END ~~1dddlll~I~L~~~'`V
SCALE. NTS
DATE. 11-30-2010
v %`Rib MAIN DRWN. BY.
CHKD. BY: a. CLANSON
® ~zTREAM BANF7 f is 7i' o IL
IFINAL DRAWING PROJECT NUMBER
TS FOR REGULATORY REVIEW ONLY G10134, 0
DRAWING NO. SHEET NO.
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