NCG030504 DMR SW (3)

FLOWSERVE
December 2, 2014
Mr. Bradley Bennett, PE
NCDENR, Division of Energy, Minerals, & Land Resources
1612 Mail Service Center
Raleigh, NC 27699-1612
RE: NPDES General Permit No. NCG030000
COC No. NCG030504
Dear Mr. Bennett:
Flow Control Operations
Anchor/Darling Valves
BW/IP Valves
Edward Valves
Valtek Control Products
Worcester Valves
In accordance with our Stormwater General Permit No. NCG030000, this letter is to inform you
that after four measurements, we have exceeded our Tier 2 Requirements and are in Tier 3 of
our permit.
We have performed upstream (Alternate; FL -ALT) and downstream monitoring (SDO-001 &
SDO-002) to characterize the impact on our receiving waters. SDO-001 -was chosen as it
minimizes the number of outfall points at our facility and an" early first flush sample would not
typically include the off-site flow. Data collected in our third party (Jim Frei of Stormwater
Services Group) sampling events support we are receiving stormwater from South Saunders
Street (FL -ALT) that exceeds the benchmarks set forth by NCDENR/DEMLR.
We have also taken Best Management Steps that include sweeping the parking lot; removing
trash & debris, installing basin inserts in our storage, receiving & shipping areas to filter metals.
We have also installed drain tags that say "No Dumping — Drains to River". With all of these
BMPs in place, we are seeing Copper and Zinc measurements lower in our discharges than in
the off-site runoff flowing into our outfalls. Copper BMV is extremely low and may never be
achievable in an urban environment with several off-site sources of Copper contributing to run-
off.
I am asking for a waiver from the monthly monitoring to allow us to continue to operate. We will
continue to have our Copper, Lead, Zinc, Oil & Grease, and TSS measured twice per year. I
will also continue to send you copies of our reports twice per year.
Sincerely,
Sharon L. Owens
Safety, Health, Environmental Affairs Manager
Flowserve, Inc.
1900 S. Saunders St.
Raleigh, NC 27603
[e-mail]
Flowserve U S Inc
Flow Control Operations
Raleigh Operations
PO Box 1961
1900 South Saunders Street
Raleigh, NC 27603
Toll Free: 1-800-225-6989
Phone: [phone]
Facsimile: 1-919-831-3376
www.flowserve.com

Stormwater Sampling Analysis
12/23/2013
mg/L
Copper
Lead
Zinc
Solids
Oil &
Grease
Collection
24 Hr. Rain
Benchmark
0.007
0.03
0.067
100
15
6/6/2013
Outfall -001
0.012
<0.0050
0.088
7.9
<5.0
0.54"
Outfall -002
.0.0067
<0.0050'1
0.13
12.2
<5.0
12/23/2013
Outfall -001
<0.0050
<0.0050
0.015
11.2
<5.0
1.45"
Outfall -002
0.012
<0.0050
0.068
12.3
<5.0
4/7/2014
Outfall -001
0.01
<0.0050
0.058
<5.0
5.3 .
0.92"
Outfall -002
0.01
<0.0050
0.19
12.5
3.2
5/15/2014
Outfall -002
0.0094
<0.0050
0.1
8.2
<5.0
4.23"
Alternate
0.009
N/D
0.1
7.9
<5.0
6/11/2014 Outfall -002 0.075 0.0071 0.31 66.8 95.1
1.26"
7/15/2014
Outfall -001
0.018
0.026
0.096
94.9
<5.0
2.88"
Outfall -002
0.0074
N/D
0.075
7.9
<5.0
Alternate
0.02
0.034
0.091
204
17.1
9/24/2014
Outfall -001
0.015
0.014
0.13
109
5.2
1.14"
Outfall -002
<0.0050
.<0.0050
0.17
4.5
<0.0050
Alternate
0.027
0.051
0.07
204
17.1
11/17/2014
Outfall -001
0.053
0.014
0.7
109
5.2
Outfall -002
<0.0050
.<0.0050
0.22
4.5
<0.0050
Alternate
0.058
0.051
0.38
204
17.1
Alternate (FL -ALT): Receiving stormwater from South Saunders Street
Outfall -001, Outfall -002: Discharge waters
Enclosure; Discharge Monitoring Report
cc: Danny Smith, Raleigh Regional Office
Flowserve U S Inc
Flow Control Division
Page 2 of 2
Raleigh Operations
PO Box 1961
1900 South Saunders Street
Raleigh, NC 27603
Toll Free: 1-800-225-6989
Phone: [phone]
Facsimile: 1-919-831-3369
www.flowserve.com