NC0004961_Email Limit updates 2/27/2017_20170224

Sledge, Bob
From:
Sent:
Cc:
Subject:
Moore, Tom
Friday, February 24, 2017 4:04 PM
Sledge, Bob
Scruggs, Don
Re- Riverbend eDMR
I know you had addressed some issues with some other Duke facilities. It appears there are some permit limit updates
that may be needed in BIMs.
Please take a look at this and follow up on any changes needed.
Please let me know if you have any questions.
Thomas F. Moore
IT Business Systems Analyst II, DEQ/Division of Water Resources
North Carolina Department of Information Technology
[phone] (office)
tom.f [e-mail]
Wilmington Regional Office
127 Cardinal Drive Extensio
Wilmington, NC 28405
it.nc.gov
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.
On Feb 24, 2017, at 3:34 PM, Scruggs, Don <[e-mail]> wrote:
Tom, can you address these issues? Or point me in the right direction....
Thanks,
Deg scww
Environmental Field Support
Carolinas West
704 829-2423 Office
704 400-3005 Cell
1

From: Massey, Richard Scott
Sent: Thursday, February 23, 2017 10:18 AM
To: Scruggs, Don
Cc: Tuchbaum, Erika B; Loveland, Brad P
Subject: Riverbend eDMR
Don,
As you know, we transitioned from "free water" to "interstitial water" at Outfall 002 on February
1St. Unfortunately, the eDMR template was set up for just "free water" parameters and benchmarks.
The discrepancies are listed below. Not sure if you can contact NCDEQ to make the revisions required to
reflect "interstitial water".
1. Wrong limits for: Total Arsenic, Nitrate/Nitrite as N, Total Selenium
2. Remove unnecessary parameters- Cadmium, Chromium, TDS
3. Add new parameter: Aluminum (I am adding this parameter at this time)
Thanks,
Rick Massey
Environmental Specialist
Riverbend Steam Station
704 877-5677 (cell)
PJ

dw
r.A
Permit NC0004961
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
002 -dewatering phase) [15A NCAC 02B.0400 et seq., 0213 .0500 et seq.]
During the period beginning on the commencement date of the dewatering operations and lasting
until expiration, the Permittee is authorized to discharge from outfall 002 - Ash Pond Discharge
(Dewatering -removing the interstitial water). Such discharges shall be limited and monitored7 by
the Permittee as specked below;
EFFLUENT
CHARACTERISTICS
Monthly
Average
LIMITS
Daily
Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequency
Flow
x
145 MGD
Weekly
Pump logs or
estimate
Influent or Effluent
Jotal Suspended Solids'
23 0 m /L
75.0 m /L
Weekly
Grab
Effluent
aOil and Grease
110 mg/L
15.0 mg/L
Weekly
Grab
Effluent
Total Co ere
1.0 m /L
10 m /L
Weekly
Grab
Effluent
tal Iron2
1.0 mg/L
1,0 mg/L
Weekly
Grab
Effluent
iTotal Arsenic
10.5 Ng/L
14.5 g/L
Weekly
Grab
Effluent
Total Selenium
13.6 /L
25.5 /L
Weekly
Grab
Effluent
otal Aluminum
3.18 m /L
3.18 m /L
Weekly
Grab
Effluent
I"fotal Mercury
47.0 ng/L6
47.0 n IL6
Weekly
Grab
Effluent
Nitrate/nitrate as N
0.13 m /L
0.17 m /L
Weekly
Grab
Effluent
*Total Phosphorus, mg/L
Weekly
Grab
Effluent
al Nitrogen (NO2 + NOa+ TKN),
m /L
Weekly
Grab
Effluent
, H3
Weekly
Grab
Effluent
onic Toxicit 4
Weekly
Grab
Effluent
rbidit 5, NTU
Weekly
Grab
Effluent
Notes.
1. The facility shall continuously monitor TSS concentration and the dewatering pump shall be
shutoff automatically when the limits are exceeded.
2. The limits for total copper and total iron only apply when chemical metal cleaning
wastewaters are being discharged.
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 Whole Effluent Toxicity shall be monitored by chronic toxicity (Ceriodaphnia) P/F at 2.7%.
Tests shall be conducted in January, April, July and October (see Part A.(6.) for details).
5. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50
NTU. If the instream turbidity exceeds 50 NTU due to natural background conditions, the
discharge cannot cause turbidity to increase in the receiving stream.
NTU - Nephelometric Turbidity Unit
6. The facility shall use EPA method 1631E.
7. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See
Special Condition A. (18.).
The metal cleaning waste, coal pile runoff, ash transport water, domestic wastewater,
and low volume waste shall be discharged into the ash settling pond.
No chemicals, cleaners, or other additives may be present in the vehicle wash water
to be discharged from this outfall. There shall be no discharge of floating solids or
visible foam in other than trace amounts.
The level of water in the pond should not be lowered more than 1 ft/week unless
approved by the DEQ Dam Safety Program.
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