NC0084395_Wasteload Allocation_19950620

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
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FACT SHEET FOR WASTELOAD ALLOCATION " `5
Request # - 24_X�E -" U'
QrE
ABC Cleaners-Superfund
Site/WESTON Project
NCO084395
Industrial - 100%
Proposed
New
Northeast Creek
SC NSW HQW
030502
Fee
Onslow
Stream Characteristic:
WiRO
USGS #
S. Wilson
Date:
(submitted )
Drainage Area (mi2):
61.6
I29NE
Summer 7Q10 (cfs):
0 (tidal)
Winter 7Q10 (cfs):
0
Average Flow (cfs):
88
30Q2 (cfs):
0
IWC (%):
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
ABC Cleaners is a dry cleaning facility in Jacksonville, NC. Dry cleaning fluids contaminated the
groundwater which included wells at Camp Lejeune. The site was declared a Superfund site. The
main contaminants include tetrachloroethene, trichloroethene, 1,2 dichloroethene and vinyl
chloride. Some metals appeared in elevated concentrations and will be limited or monitored.
Discharge is to HQW. Dilution ratio for this area is predicted to be 2:1, so WQ standards will be
given for limited parameters (except human health criteria, because the allowable is calculated using
average flow). This is based on .020 1 (d)(1)(B)(vii) which specifies 1/2 standard for HQW.
Facility investigated nondischarge alternative, but site constraints and soils prevent this option.
Special Schedule Requirements and additional comments from Reviewers:
pjL
n
Recommended by: Date: 3
Reviewed by
Instream Assessment:
'94 qs
Regional Supervisor: !` 4 ( l (— Date: !�L� - 4 -�
Permits & Engineering: Date:
v
RETURN TO TECHNICAL SERVICES BY:
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2
TOXICS/CONVENTIONAL PARAMETERS
Type of Toxicity Test: 24 Hr Fthd - No Significant Mortality
Existing Limit:
Recommended Limit: Quarterly PAP at 90%
Monitoring Schedule: March, June, September, December
** Aquatic Survey and Toxicology Unit will review tox testing requirement and may recommend
additional test for HQW.
Recommended Limits
Flow:
TSS (mg/1):
Tetrachloroethene (µg/1):
Trichloroethene (µg/1):
Vinyl chloride (µg/1):
Lead (µg/1):
Nickel (µg/1):
Arsenic (µg/1):
Chromium (µg/1):
Copper (µg/1):
Zinc (µg/1):
1,2-Dichloroethene (µg/1):
pH
Mon. Avg. Daily Max.
Frequency
WQ/EL
0.216 MGD
continuous
10.0 20.0
2/month
5_
monthly
wq
monitor
monthly
wq
monitor
monthly
wq
25
monthly
wq
8.3
monthly
wq
50
monthly
20
monthly
monitor
monthly
monitor
monthly
monitor
monthly
6.8-8.5
2/month
wq
All samples shall be grab samples.
_X_ Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Special Instructions or Conditions
All volumes of wastewater leaving the facility shall be monitored. If continuous flow monitoring
is not feasible, then the discharger shall record the approximate time that discharge began and
ended, along with the instantaneous flow at the time of effluent sampling.
Samples for organic compounds should be collected at the same time as whole effluent toxicity.
Explain exact pathway of discharge ( i.e. storm sewer to tributary, etc.)
Additional Information attached? _� (Y or N) If yes, explain with attachments. Spreadsheet
and Toxicity testing attached.

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i
ABC Cleaners
Northeast Creek ABP
Cie
ners Tox Wo
she
t
NCO084395 SC NSW HQW
Flow MGD
0.216
Oav cfs)
88
7Q 10s
0
Maximum
Allowable
Allowable
Parameter
:)bserved Con5
State Stdrd
Fedl. Criteria
for HH w/ Qavg
based on 7Q10
/I
/I
/I
/I
/I
Requirement
Acetone
4800
Aluminum
17000
Arsenic c Cov-- a5r, 7010
28
50
36
50
LIMIT
Barium
200
enzene (c)
18
71.4 HH
71 HH
18838
Bromochloromethane
0.2
Bromoform c
3
360 HH
94984
Calcium
76000
Chlorobenzene
5
21,000 HH
5540713
Chloroform c)
3
470 HH
124006
Chromium
57
20
20
LIMIT
Cobalt
431
Copper 89 3 actl 2.9
MONITOR
- Dibromochloromethane c 7- 34 HH
8971
1,2-Dichloroetheng 1200
MONITOR t
ok. 1,1-Dichloroethene c 6 3.2 HH
844
Eth (benzene 28 29000 HH
7651461
Iron 24000
Lead 10 25 8.51
2 51
Magnesium 3500
Manganese 41
tUMIT
Nickel 77 8.3 8.3
8.3
Potassium 15000
Sodium 100,000
Tetrachloroethene (PCE)(c) 5400 -8..85 HH
2335
LIMIT
Toluene 25 200000 HH
52768698
1,1,1-Trichloroethane 0.6
1,1,2-Trichloroethane c 2 42 HH
11081
Trichloroethene TCE) c 705 92.4 HH 81 HH
24379
MONITOR t
Vanadium 45
Vinyl Chloride c 110 525 HH 525 HH
138518
MONITOR
X lene 3
Zinc 390 86 actl
MONITOR
c =carcinogen
HH =Human Health criteria for fish consumption)
act. level =action level -monitor only
If maximum observed concentration is <1/100th of the allowable -no requirement is given.
If maximum observed concentration is greater than allowable or >1/10 allowable -
parameter will be limited.
If maximum concentration is between 1/10th and 1/100th the parameter will be monitored.
t These parameters will be monitored due to their being a primary contaminant.
This is conservative due to discharge to HQW and su ertund status.
Allowable values for HH criteria are based on Qavg flow.
HQW requires 1/2 allowable as limit for toxicants -no freshwater inflow -
assume 2:1 dilution ratio for this area , so WQ limit is recommended.

uiiitu i+fame C Permit # N C Gn84- >15 pipe #
ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The permittee shall conduct acute toxicity tests on a awrierly basis using protocols defined in the North Carolina
Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent
Concentration." The monitoring shall be performed as a Fathead Minnow OMQhWjjpMnXjW 24 hour static
test, using effluent collected as a 24 hour composite. The effluent concentration at which there may be at no time
significant acute mortality is 90% (defined as treatment two in the North Carolina procedure document). Effluent
samples for self -monitoring purposes must be obtained during representative effluent discharge below all waste
treatment. The first test will be performed Ater thirty days from the effective date of this permit during the
months of AAA tyunc-,: . 5ZA-F 66 - � BerL-
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C.
Additionally, DEM Form AT-2 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should any test data from either these monitoring requirements or tests performed by the North Carolina Division
of Environmental Management indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an invalid test and will require immediate
retesting(within 30 days of initial monitoring event). Failure.to submit suitable test results will constitute
noncompliance with monitoring requirements.
7Q10
Permitted Flow
IWC
Basin & Sub -basin
Receiving Stream
/4 cfs
0, Z ,, MGD
9�
rn o�o�
6�
County ©;.
QAL P/F Fathead 24 Version 9191
Recommended by:
Date

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