NC0086827_Permit Issuance_20001115

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
November 15, 2000
Mr. Bruce Biehl
em, Inc.
2 2300 ast Pettigrew Street
rham, North Carolina 27702
ern
NCDENR
Subject: Issuance of NPDES Permit NCO086827
Southchem Inc.
Durham County
Dear Mr. Biehl:
Division personnel have reviewed and approved your application for the subject permit. Accordingly, we
are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt
of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh,
North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements
to obtain other permits which may be required by the Division of Water Quality or permits required by the Division
of Land Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may
be required.
If you have any questions concerning this permit, please contact Michael Myers at telephone number (919)
733-5083, extension 508.
Sincerely,
Original Signed By
David A Goodrich
Kerr T. Stevens
cc: Central Files
Raleigh Regional Office/Water Quality Section
NPDES Unit '
Point Source Compliance Enforcement Unit
Technical Assistance & Certification Unit
Aquatic Toxicology Unit
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 10% POSr-CONSUMER PAPER
VISIT US ON THE INTERNET dal http://h2o.enr.state.nc.us/NPDES

Permit Number: NCO086827
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Southchem, Inc.
is hereby authorized to discharge wastewater from a facility located at
Southche nc. Groundwater Remediation System
2309 East Pettigrew Street
2 "urham County
to receiving waters designated as Unnamed Tributary to Third Fork Creek in the Cape Fear River
Basin in accordance with effluent limitations, monitoring requirements, and other conditions set
forth in Parts I, II, III and IV hereof.
This permit shall become effective December 1, 2000.
This permit and authorization to discharge shall expire at midnight on October 30, 2005.
Signed this day November 15, 2000.
Original Signed By
David A. Goodrich
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit Number: NC0086827
SUPPLEMENT TO PERMIT COVER SHEET
Southchem, Inc.
is hereby authorized to:
1. After receiving an Authorization to Construct from the Division of Water Quality,
construct and operate a groundwater remediation treatment system with an ultimate
design capacity of 0.0144 MGD, and
2. Discharge treated groundwater from said treatment works at the location specified on
the attached map through outfall(s) 001, into an unnamed tributary to Third Fork
Creek, which is classified C-NSW waters in the Cape Fear River Basin.

iM
0

Permit NCO086827
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge treated groundwater from outfall(s) 001. Such discharges shall
be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample
Locationl
Flow' .
0.0144 MG
Continuous
Recording
E or I
Total'Sus ended Solids
30.0 m /L
Monthly
Grab
E
Oil and-Grease2
Monthly
Grab
E
Iron
Monthly
Grab
E
Manganese
Monthly
Grab
E
Benzene
71.4 /L
Monthly
Grab
E
Bis (2-ethylhexyl) phthalate L'
�`' {°'"'' ,
�;�)
5.9 L
Monthly
Grab
E
1,1-Dichloroethene
3.2 L
Monthly
Grab
E
Tetrachloroethene
8.85 /L
Monthly
Grab
E
Trichloroethene
81.0 /L
Monthly
Grab
E
Toluene
11.0 L
Monthly
Grab
E
Carbon disulfide3 ��
.4I-A�S
Monthly
Grab
E
ChloroethanO OrIoV-e
-
Monthly
Grab
I E
Chloroform3
Monthly
Grab
E
M-Dichloroethane
Monthly
Grab
E
1,?-Dichloroethane
Monthly
Grab
E
Eth Ibenzene3
Monthly
Grab
E
Isopropyl ether3 r� $��,v
Monthly
Grab
E
Methylene Chloride3 rnove.
Monthly
Grab
E
Methyl isobutyl Ketone3 rV,#j)6tg
Monthly
Grab
E
Na thalenO " k;'-; f,;o k-
Monthly
Grab
E
r �p , o ;
Monthly
Grab
E
Sec-bu Ibenzene3 r eInl6tp,
Monthly
Grab
E
Tert-but Ibenzene3 r e, y1, a n
Monthly
Grab
E
1, 1, 1 -TrichloroethanO ,
Monthly
Grab
E
1,3,5-Trimeth Ibenzene3.rrf����,
Monthly
Grab
E
1,2,4-Trimeth Ibenzene3
Monthly
Grab
E
Vinyl Chloride
Monthly
Grab
E
X lenes jotal
Monthly
Grab
E
EPA Method 624/625 Full Suite
Annually
Grab
E
Total Nitrogen
Monthly
Grab
E
Chronic ToxiCity4
Quarterly
Composite
E
Footnotes:
1. Sample Location: E - Effluent, I - Influent
2. The grab sample for oil and grease should be skimmed from the surface in a quiescent zone, such
as a holding tank, if possible.
3. If after one year of sampling (12 sampling events) this analtye has not been detected above the
quantitation limit, the permittee may request that the Division evaluate removing that parameter
as a condition for the permit.
4. Chronic P/F (Ceriodaphnia) @ 90%, January, April, July, and October.
The discharge shall contain no floating solids or foam visible in other than trace amounts.

Permit NCO086827
CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriorlaphnia
dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North Carolina
Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will be
performed during the months of January, April, July, and October. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then
multiple -concentration testing shall be performed at a minimum, in each of the two following months as described in "North
Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest concentration
having no detectable impairment of reproduction or survival and the lowest concentration that does have a detectable
impairment of reproduction or survival. The definition of "detectable impairment," collection methods, exposure regimes, and
further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form
(MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B
for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be'filed with the Environmental Sciences Branch no later than 30 days after the
end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response
data, and be certified by laboratory supervisor and ORC or approved designate, signature. Total residual chlorine of the
effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee
will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit
number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the
form. The report shall be submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required
during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Quality
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,
minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will
require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial
monitoring.

�n e/s
291U N 19411 ' 1-101:4040_[111►1
State of North Carolina
County of Durham
Donna B. Minor being duly swom says that she is the
Principal Clerk of The Durham Herald Co., Inc., publishers
of The Herald -Sun, a newspaper published in and of general
circulation in said County, and that a notice of which the
annexed is a true copy, was published in said newspaper one
time on the 24th day of June, 2000.
Principal Clerk
Sworn to and subscribed before me this 27th day of June,
2000.
Not Publ'
My commission expires December 16, 2001.
Durham County, North Carolina
it
Cv�y 4o CS
PUBLIC NOTICE
STATE OF NORTH
CAROLINA
ENVIRONMENTAL
MANAGEMENT
COMMISSION/
NPDES UNIT
1617 MAIL SERVICE
CENTER
RALEIGH NC
27699.1617
NOTIFICATION OF
INTENT TO ISSUE A
NPDES WASTEWATER
i the basis of thorough
If review and opplico-
n of NC General Siat-
• 143.21, Public low 92-
0 and other lawful
mdards and regulations
ie Nonh Carolina Envi.
to t
ered
irgge permit to the
+Isl -listed an the at-
J pages effective 45
rom he publish date
notice.
n comments regard-
ie proposed permit
e accepted until 30
after the publish
of this notice. All
re-
motion on file used to de-
termine conditions pres-
ent in the draft permit are
available upon request
and payment of the costs
of reproductions. Mail
comments and/or re-
Cthec sts for information to
NC Division of Water
Quality at the above ad-
dress or call Ms. Christie
Jackson at (919) 733
5083, extension 538.
Please include the NPDES
permit number (attached)
in any communication. In-
terested Parsons may also
visit the Division of Water
Quality at 512 N. Solis-
burryy Street, Raleigh, NC
27604-1148 between the
hours of 8:00 a.m. and
5:00 p.m. to receive infor-
Inc., 2
Street,
27702
new of
water
s dis.

SOC PRIORITY PROJECT: Yes: No: ✓
If Yes, SOC No.:
NPDES STAFF REPORT AND RECOMMENDATIONS
FOR A GROUNDWATER REMEDIATION SYSTEM
TO SERVE SOUTHCHEM, INC.
April.24, 2000
To: Permits and Engineering Unit
Water Quality Section
Attention: Mike Myers
County: Durham
Permit No.: NCO086827
PART I - GENERAL INFORMATION
1. Facility and Address: Mr. Bruce Biehl
Southchem, Inc.
2000 East Pettigrew Street
Durham, NC 27702
2. Date of Site Visit: 4/19/2000
3. Report Prepared by: Randy Jones
4. Persons Contacted and Telephone Number: Jim Shilliday and Nanjun Shetty
with Arcadis, Geraghty, and Miller (782-5511); performed site visit with Jim
and Nanjun and Bruce Biehl and David Robertson of Southchem.
5. Directions to Site: I-40 west, north on Hwy. 147, take
Briggs Ave. exit to the right, left at stop sign onto
Pettigrew, Southchem is on left approximately 0.2
miles.
6. Discharge Point(s), List for all discharge points:
Latitude: 35 ° 58' 44"
Longitude: 78 ° 52'
NPDES Staff Report (NC0086827)
Page 1
LMAY- 9 2000
G2?R-'!Ji;r, 1. ;!HY
FC!'a

Attach a USGS map extract and indicate treatment facility site and discharge point
on map.
U.S.G.S. Quad No.: D23NW U.S.G.S. Quad Name: Southwest Durham
7. Site size and expansion area consistent with application? Yes: ✓
No: If No, explain:
8. Topography (relationship to flood plain included): Site is relatively flat and is
not located in a flood plain.
9. Location of nearest dwelling: Greater than 400 feet
10. Receiving stream or affected surface waters: UT to Third Fork Creek
a. Classification: C NSW
b. River Basin and Subbasin No.: 03 06 05
C. Describe receiving stream features and pertinent
downstream uses: End of pipe is proposed into stormwater ditch
at corner of property. Culvert goes under Hwy.147.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitt#dl: 14,400 GPD
b. What is the current permitted capacity of the Waste Water Treatment facility?
Not yet permitted
C. Actual treatment capacity of the current facility (current design capacity)?
NIA
d. Date(s) and construction activities allowed by previous Authorization to
Construct issued in the previous two years: NIA
e. Please provide a description of existing or substantially constructed
wastewater treatment facilities: NIA
f. Please provide a description of proposed wastewater treatment facilities: The
submittal refers to recovery wells, a low profile air stripper, carbon
vessels, to discharge; however, detailed design information must be
submitted, aong with a request for an A to C.
g. Possible toxic impacts to surface waters: Chlorinated and non -chlorinated
organic solvents
NPDES Staff Report (NC0086827)
Page 2

h. Pretreatment Program (POTWs only):
in development: approved:
should be required: not needed: ✓
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM permit no.:
Residual Contractor:
Telephone No.:
b. Residuals stabilization: N/A PSRP:
PFRP: Other:
C. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet): Physical/chemical
Grade I
4. SIC Code(s): 5169
Wastewater Code(s) of actual wastewater, not particular facilities i.e.., non -contact
cooling water discharge from a metal plating company would be 14, not 56.
Primary: 66, 84, 85
Main Treatment Unit Code: 560-0
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals
only)? Not that I am aware of.
2. Special monitoring or limitations (including toxicity) requests: Typical for
groundwater remediation involving chlorinated and non -chlorinated solvents.
3. Important SOC, JOC or Compliance Schedule dates: (Please indicate)
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
NPDES Staff Report (NC0086827)
Page 3

4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge
options available? Please provide regional perspective for each option evaluated.
Spray Irrigation: Not enough room
Connection to Regional Sewer System: Durham will not accept remediated
groundwater on a permanent basis.
Subsurface: Soils/site not suitable
Other disposal options:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
The WQ RRO has reviewed the submitted information and performed a site visit of the
proposed groundwater remediation site. The proposal is to construct a groundwater
remediation system and discharge the remediated groundwater into a storm drain on the
back side of the property. At the end of pipe (at least based upon where the consultant
and Southchem folks indicated that the discharge would be located during the site visit)
the stormwater ditch is approximately three feet wide and reaches a maximum depth of
approximately sixteen inches.
Upon satisfactory review by the NPDES Unit, the WQ RRO has no objection to the
issuance of the permit.
Signature
ao
Date
Water Quality Regional Supervisor
file: h:\gwremedi\nc86827.sr
NPDES Staff Report (NC0086827)
Page 4

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO086827
Facility Information
Applicant/Facility Name:
SouthChem, Inca
Applicant Address:
2000 East Pettigrew Street, Durham, NC 27702
Facility Address:
2000 East Pettigrew Street, Durham, NC
Permitted Flow
0.0144 MGD
Type of Waste:
Remediated Groundwater
Facility/Permit Status:
New
County:
Durham
Miscellaneous
Receiving Stream:
UT to Third Fork
Creek
Regional Office:
Raleigh
Stream Classification:
C NSW
USGS Topo Quad:
D 23 NW — SW Durham
303(d) Listed?:
No
Permit Writer:
Michael Myers
Subbasin:
03-06-05
Date:
June 13, 2000
Drainage Area (mi2):
<0.1 mi2
Y
Summer 7Q10 (cfs)
0.0
Winter 7Q10 (cfs):
0.0�
Average Flow (cfs):
<0.1
IWC (%):
100%
Primary SIC Code:
5196
SUMMARY
SouthChem, Inc. has applied for an NPDES permit to discharge remediated groundwater into a storm drain
located in Durham County. The only viable option, other than discharge to surface water, is to discharge to
the City of Durham. However, the City of Durham is unwilling to accept the remediated groundwater.
Leaving the only other economically viable option as discharge to surface water.
The facility is requesting a permitted flow of 0.0144MGD. Groundwater sampling events from 1996 to
present have detected the following compounds including chlorinated solvents:
-Isopropyl ether
Benzene
Carbon disulfide
'Chloroethane'
Chloroform
1,1-Dichloroethane
1,1-Dichloroethene
1,2-Dichloroethane(total)
'1,3,5-Trimethylbenzene
iert-butylbenzene
3,2,4-Trimethlybenzene
sec-butylbenzene
•ethylbenzene
`Methlyene chloride
Tetrachloroethene
Toluene
'1,1,1-Trichlorethane
Trichloroethene
Vinyl chloride
Xylenes(total)
Bis(2ethylhexyl) phthalate
Pact Shoat
NPDES Rcncaal
P,11"C 1

Naphthalene
Phenol
In addition to solvent contamination groundwater samples indicate contamination from petroleum sources,
therefore the conditions of the general permit for groundwater remediation systems have been incorporated
into this permit. The general permit assumes zero dilution in developing the permit limits and monitoring
requirements. Assuming zero dilution is appropriate for this site since discharge is to a zero flow stream.
A vacuum -enhanced recovery system will be used to pump groundwater from 10 extraction wells at a
maximum rate of 10 gpm per well. This equates to 0.0144 MGD.
The discharge will be to an unnamed tributary to Third Fork Creek. Though the unnamed tributary is not
listed as impaired, according to the state's 303(d) list, Third Fork Creek is listed as impaired. The cause of
impairment is uncertain but urbanization is suspected.
TOXICITY TESTING:
Recommended Requirement: Chronic Toxicity (Ceriodaphnia) P/F at 90%
INSTREAM MONITORING:
None.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: June 28, 2000
Permit Scheduled to Issue: August 14, 2000
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please contact Michael
Myers at (991199))J733--5038 ext. 5088..'
TTw wwTw. /i'/ w,/I_ �//H'.._ llwmr.. �• Z [ /��
NPDES SUPERVISOR:
NAME: DATE:
Fact sheet
NPDES Rencwal
Page 2

REGIONAL OFFICE COMMENT:
NAME: DATE:
Fact Sic: c t
NP1 T S Renewal

I
DIVISION OF ENVIRONMENTAL MANAGEMENT
July 31, 1998
M E M O R A N D U M
To: Steve Tedder
Coleen Sullins
From: Steve Mitchell
Subject: Stormwater Discharge
Designation Letter
SouthChem Incorporated
2000 East Pettigrew St
P.O. Box 1491
Durham, N.C. 27702
On November 8, 1994 Messrs. Ted Cashion and Steve Mitchell visited
the subject facility. Although the Standard Industrial
Classification does not apply for stormwater permitting (there is
no actual manufacturing that takes place) this facility repackages
chemicals for resale. SouthChem is a regional distributor of
industrial chemicals. This facility manages high volumes of
chemicals which include caustic soda, soda ash, sodium sulfate,
muriatic acid, acetone, trichloroethane, xylene, methyl ethyl
ketone, and toluene. This repackaging transpires from railroad car
or tanker, to forty pound sack or five gallon carboy, etc.
The stormwater generated at this site is collected in two separate
aeration basins, mixed and neutralized as necessary, and
discharged. There is proper containment around the bulk holding
tanks and I am sure that all of the safety procedures are followed.
But accidents and spills do occur when transferring from train cars
to distribution areas to fifty-five gallon drums and so forth.
This facility recently released 200 gallons of water (August 22,
1994) from the containment basin with a pH of 10.2 and at that time
the treatment works were determined to be a treatment works. In
response, the company indicated that they would remove the aeration
and mixing and thereby create a stormwater containment basin and
not be in violation of General Statutes for operation of a
treatment works without a permit.
If this is not sufficient information for designation, please
inform me.

AW, GERAGHTY
MILLER, INC.
y 'Environmental Services
A Heidemij company
June 12, 1995
Mr. Ted Cashion, Groundwater
Raleigh Regional Office
Division of Environmental Management
Department of Environment, Health and Natural Resources
3 800 Barrett Drive
Raleigh, NC 27604
Re: NPDES Permit Application for Southchem, Inc.,
Dear Mr. Cashion:
This letter is to confirm our telephone conversation on May 16, 1995, regarding the NPDES
permit application submittal for the Southchem, Inc. facility located at 2000 E. Pettigrew Street,
Durham, North Carolina.
On March 3, 1995, prior to the deadline for submitting the NPDES permit application, we
talked with Mr. Steve Ulmer, Division of Environmental Management, regarding the potential delay in
submitting the NPDES permit application for the above -referenced facility due to sampling problems
associated with the weather. Most of the significant storm events occurred at night or within 72 hours
of the previous storm event. As a result we were not able to collect the storm water samples from the
facility outfalls. Mr. Ulmer indicated that the 90-day deadline was informal and a formal extension was
not required. He also indicated that he would update you on the status of the Southchem permit
application based on our conversation.
As I informed you on May 16, 1995, use are currently waiting for a significant storm event for
sampling. Upon collection/analysis of the storm water samples, a NPDES permit application will be
submitted as soon as practicable to the Division of Environmental Management
Thank you for your cooperation. If you have any questions please contact myself or Najun
Shetty at (919) 5 71-1662.
T'eC(
Sincerely,
Ic
CWL/smp
w
a.
g:\userslnanjun\southchelted-!i
CrossPeinte Q, 284( a . !^ 40
"z.
AirJ.�G� � w 1 A

J
Ethyl Hexanoic Acid C8-1-116-02 140 ug/I
1,1-Dichloroethene C2-H4-Cl2 3.4 ug/I
1,1-Dichloroethane C2-1-14-Cl2 0.42ug/I
cis-1,2-Dichloroethene C2-H4-Cl2 0.74ug/I
GENERAL
Toxic by ingestion, inhalation, and through skin absorption.
Strong irritant to eyes and skin.
Carcinogenic.
Flammable, dangerous risk of fire. Explosive in air at 6 to 16%.
TLV: 10 ppm in air.
Chloroform CHCI3 1.4 ug/1
aka Trichloromethane
Toxic by inhalation. Prolonged inhalation or ingestion may be fatal.
Carcinogenic.
TLV: 10 ppm in air. OSHA PEL: 50 ppm for 10 minutes.
1, 1, 1 -Trichloroethane C2-H3-CI3 1.5 ug/I
CH3CC13
aka Methyl Chloroform
Irritant to eyes, mucous membranes, and skin.
Trichloroethene C2-H3-CI3 1.5 ug/I
CHCI:CCl2
Toxic by inhalation.
TVL: 50 ppm in air.
1,2-Dichloropropane C3-H6-Cl2
CH3CHCICH2CI
aka Propylene Dichloride
Flammable, dangerous risk of fire, explosive limits in air 3.4 to 14.5%.
Toxic by ingestion or inhalation.
TLV: 75 ppm in air.
Has caused liver and kidney necrosis in experimental animals.
Tetrachloroethene C2-H2-C14 4.9 ug/I
C12C:CCI2
aka Perchloroethylene
Irritant to eyes and skin.
TLV: 50 ppm in air.

State of North Carurrna
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Htant,' ': r., Gov6rnor
Jonathan B. Howes;, Secretary
A. Preston How' �{,�,ts.;.�E., Director
t
November 30, 1994
Bruce Biehl
2000 East Pettigrew Street
Post Office Box 1491
Durham, N.C. 27702
Subject: NPDES Stormwater Permit Application
SouthChem Inc.
Durham County
Dear Mr. Biehl:
F***,*.J F1
Based upon an evaluation made by Mr. Steve Mitchell and Mr. Ted Cashion of the Raleigh Regional Office
concerning the stormwater discharge from SouthChem, our Water Quality Section has determined that
this facility is a contributor of pollutants to the waters of the B.E. Jordan Watershed. I have determined that
this discharge of stormwater must be covered by an NPDES Permit to be issued by this Division.
Therefore, in accordance with the provisions of Title 40 Code of Federal Regulations (CFR) Part
122.26(a)(1)(v), I am hereby designating this stormwater discharge as subject to permitting under the
NPDES program.
A NPDES permit application shall be submitted within 90 days of the receipt of this letter. The attached
application forms (Form 1 and Form 2F) must be completed and properly signed and the permit application
filing fee ($400.00) must accompany the application forms. Please note that these applications require
the sampling and analyses of a stormwater sample from a representative storm event and the submission
of the data in the Form 2F.
If you should have any questions or require additional information, please contact Mr. Mitchell of our
Raleigh Regional Office at 919-571-4700.
Sincerely,
A. Preston Howard, Jr., P.E.
v`
cc: Permits and Engineering
City of Durham
Durham County Health Department
RRO
attch (Form 1 and Form 2F)
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Actic:)n Emr;fryer 50% recvr:lea/ 10% oost,ccnsurner n000r