NCG030711_ROS Tier Relief_20210518

DocuSign Envelope ID: FOFF3DBA-9AA3 410A-A58E-03CDD81FQ2v
ROY COOPER
Governor
DIONNE DELLI-GATTI
Secretary
BRIAN WRENN
atrector
Rob%rt Bosch, LLC
Attention: Kasey Wattley
1980 Indian Creek Road
Lincolnton, North Carolina 28092
NORTH CAROLINA
Ertv1ron0wnW QuaW
May 18, 2021
Subject: NPDES Stormwater Permit
Stormwater Permit Certificate of Coverage No. NCG030711
Representative Outfall Status / Tier Monitoring Relief
Robert Bosch, LLC
Lincoln County
Dear Ms. Wattley:
The Mooresville Regional Office staff have reviewed your request dated May 11, 2021 for a determination that
stormwater discharge outfall (SDO) 002 be granted representative outfall status for stormwater outfalls 001, 003 and
004. Based on past site inspections and the monitoring data, maps and the TTS abatement plan provided, we are
approving this request and also the request for Tier monitoring relief for copper and zinc, The Tier relief is granted for
the current permit term and one renewal period. In accordance with 40 CFR§122.21(g)(7), you are authorized to
sample outfall number 002 as a representative outfall for the site. This approval is effective with the next sampling
event. We also want to remind you that the permit still requires Qualitative Monitoring be performed at all SDOs,
regardless of representative status.
Please remember that any actions you initiate in response to future benchmark exceedances as directed in the tiered
response provisions of your permit must address all drainage areas represented by SDO 002, where appropriate.
Please append this letter to your Stormwater Pollution Prevention Plan (SPPP) or permit to document that
representative outfall status and Tier relief has been approved. If changes in drainage areas, structures, processes,
storage practices, or other activities occur that significantly alter the basis of this approval, representative outfall
status and / or Tier relief may no longer be valid. You should either resume sampling at all SDOs, or reapply to this
office for representative outfall status based on updated information. If you have any questions or comments
concerning this letter, please contact James Moore at [phone].
Sincerely,
�DAocu'Signed�by:
A'A
42CFABFC588C459-
Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
Mooresville Regional Office
cc: Laserfiche Stormwater
North Carolina Department of Environmental QualityI Division of Energy, Mineral and Land Resources
z��D.EQ Mooresville Regional Office ! 610 East Center Avenue, Suite 301 1 Mooresville, North Carolina 29115
% L IQ )
i%T 704.663.1699

FIGURE NUMBER: 2 1 SITE MAP
REFERENCE: Lincoln County GIS, 2019 Aerial
PROJECT NUMBER: ENMO190155.00
SCALE: Approximate 1 inch = 400 feet
Robert Bosch Tool Corporation
1980 Indian Creek Road
Lincolnton, NC 28092
D 11

Division of Energy, Mineral & Land Resources
Stormwater Program
National Pollutant Discharge Elimination System
Environmental fL!n11ti! REPRESENTATIVE OUTFALL STATUS (ROS)
MMM
FOR AGENCY USE ONLY
Date Received
Year
Month
Da
If a facility is required to sample multiple discharge locations with very similar stormwater discharges, the
permittee may petition the Director for Representative Outfall Status (ROS). DEQ may grant Representative
Outfall Status if stormwater discharges from a single outfoll are representative of discharges from multiple
outfalls. Approved ROS will reduce the number of outfalls where analytical sampling requirements apply.
If Representative Outfall Status is granted, ALL outfalls are still subject to the qualitative monitoring
requirements of the facility's permit —unless otherwise allowed by the permit (such as NCG020000) and DEQ
approval. The approval letter from DEQ must be kept on site with the facility's Stormwater Pollution
Prevention Plan. The facility must notify DEQ in writing if any changes affect representative status.
For questions, please contact the DEQ Regional Office for your area (see page 3).
(Please print or type)
1) Enter the permit number to which this ROS request applies:
Individual Permit (or) Certificate of Coverage
2) Facility Information:
Owner/Facility Name R 01`_� el lf+ 6 0sch i ®0 �c�Y t�o�e�'� I ®� � tYtC� 1✓t � C�t�l
Facility Contact V)CAS e.\/ WGJA t l e-�l
Street Address aed , fin"') c $ e\4
City I.'v\C!2w1 6f) State A) C ZIP Code
County (_ V) CO ") _ E-mail Address
Telephone No. ' 1 Ott (k CA i — (D Fax: JQJ I A
3) List the representative outfail(s) information (attach additional sheets if necessary):
Outfall(s) 7 is representative of Outfall(s) ) r S , -Z( L-A
Outfalls' drainage areas have the same or similar activities?
R-Y—es—
❑ No
Outfalls' drainage areas contain the same or similar materials?
e-Y—es
❑ No
Outfalls have similar monitoring results?
ErY—ei
❑ No ❑ No data*
Outfall(s) is representative of Outfall(s)
Outfalls' drainage areas have the same or similar activities?
❑ Yes
❑ No
Outfalls' drainage areas contain the same or similar materials?
❑ Yes
❑ No
Outfalls have similar monitoring results?
❑ Yes
❑ No ❑ No data*
Outfall(s) is representative of Outfall(s)
Outfalls' drainage areas have the same or similar activities?
❑ Yes
❑ No
Outfalls' drainage areas contain the same or similar materials?
❑ Yes
❑ No
Outfalls have similar monitoring results?
❑ Yes
❑ No ❑ No data*
*iVon-compliance with analytical monitoring prior to this request may prevent ROS approval. Specific
circumstances will be considered by the Regional Office responsible for review.
Page 1 of 3
SWU-ROS-2009 last revised 12/30/2009

Representative Outfail Status Hoquest
4) Detailed explanation about why the outfalis above should be granted Representative Status:
(Or, attach a letter or narrative to discuss this information.) For example, describe how activities and/or
materials arI�j similar.`'
SQ.$ c'-\A (And& _Bz)S(J1 i. lv-_Cvltn+ov)
5) Certification:
North Carolina General Statute 143-215.6 a(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record,
report, plan, or other document filed or required to be maintained under this Article or a rule implementing this
Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case
under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device
or method required to be operated or maintained under this Article or rules of the (Environmental Management]
Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed
ten thousand dollars ($10,000).
I hereby request Representative Outfali Status for my NPDES Permit. I understand that ALL outfalis are still
subject to the qualitative monitoring requirements of the permit, unless otherwise allowed by the permit
and regional office approval. I must notify D Q in writing if any changes to the facility or its operations
take place after ROS is granted that may affect this status. If ROS no longer applies, I understand I must
resume monitoring of all outfalis as specified in my NPDES permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing:
Title: Vke(A iIr , , SC,4-P•-l)
(Sign atu a of Applicant) (Date Signed)
Please note: This application for Representative Outfall Status is subject to
approval by the NCDEQ Regional Office. The Regional Office may inspect your
facility for compliance with the conditions of the permit prior to that approval.
Final Checklist for ROS Request
This application should include the following items:
tall'This completed form.
Letter or narrative elaborating on the reasons why specified outfalis should be granted representative
,status, unless all information can be included in Question 4.
2-"r Two (2) copies of a site map of the facility with the location of all outfalls clearly marked, including the
drainage areas, industrial activities, and raw materials/finished products within each drainage area.
Summary of results from monitoring conducted at the outfalis listed in Question 3.
❑ Any other supporting documentation.
Page 2of3
SWU-ROS-2009 Last revised 12/30/2009

Representative Outfall Status Request
Mail the entire package to:
NCDEQ DEMLR at the appropriate Regional Office (See map and
addresses below)
Notes
The submission of this document does not guarantee Representative ®utfall Status (ROS) will be granted as
requested. Analytical monitoring as per your current permit must be continued, at all outfalis, until written
approval of this request is granted by DEQ. Non-compliance with analytical monitoring prior to this request
may prevent ROS approval. Specific circumstances will be considered by the Regional Office responsible for
review.
EFor questions, please contact the DEQ Regional Office for your area.
Asheville Regional Office
2090 U.S. Highway 70
Swannanoa, NC 28778
Phone [phone]
FAX [phone]
Fayetteville Regional Office
Systel Building,
225 Green St., Suite 714
Fayetteville, NC 28301-5094
Phone [phone]
FAX [phone]
Mooresville Regional Office
610 East Center Ave.
Mooresville, NC 28115
Phone [phone]
FAX [phone]
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628
Phone [phone]
FAX [phone]
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Phone [phone]
FAX [phone]
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Phone [phone]
FAX [phone]
Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
Phone [phone]
Water Quality Main FAX [phone]
Central Office
1612 Mail Service Center
Raleigh, NC 27699-1612
Phone [phone]
FAX [phone]
Page 3 of 3
SWU-ROS-2009 Last revised 12/30/2009