NC0078000_Permit Modification_20020920

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan V'V. Klimek, P.E., Director
September 20, 2002
A7A
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Mr. Bruce D. Biehl, Director of Engineering/ Regulatory Affairs
Brenntag Southeast, Inc.
P.O. Box 1491
Durham, North Carolina 27702
Subject:NPDES Permit Modification
Permit NC0078000
Greensboro Groundwater
Remediation
Guilford County
Dear Mr. Biehl:
An error was discovered, by your consultant, in the NPDES permit issued November
13, 2001. The pH monitoring was inadvertently required on a daily basis in that permit.
The pH monitoring has been changed back to monthly monitoring with this modification.
Please find enclosed the revised permit page. The revised page should be inserted
into your permit. The old page may then be discarded. All other terms. and conditions
contained in the original permit remain unchanged and in full effect. This permit
modification is issued under -the requirements of North Carolina General Statutes 143-215.1
and the Memorandum of Agreement between North Carolina and the U. S. Environmental
Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in this
permit modification 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 a written petition conforming to/Chapter 150B of the North Carolina General
Statutes, 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.
If you have any questions concerning this permit modification, please contact Susan
Wilson at [phone], extension 510.
Sincerely,
an W. Klimek, P.E.
cc: Winston - Salem Regional Office, Water Quality Section
NPDES Unit
Central Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal opportunity Affirmative Action Employer
Telephone [phone] FAX [phone]
Visa' us ON THE INTERNET @ http:/%h2o.enr.state.nc.us/NPDES

A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge 0.216 MGD of remediated groundwater from outfall 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
Location1
Flow
0.216 MGD
Continuous
Recording
Influent or
Effluent
Toluene'
Quarterly
Grab
Effluent
Benzene'
Quarterly
Grab
Effluent
Trans 1,2 dichloroethene'
Quarterly
Grab
Effluent
Trichloroethene'
Quarterly
Grab
Effluent
Chronic Toxicity2
pH
6-9
Monthly
Grab
Effluent
Organic Sampling shall be performed in conjunction with toxicity testing.
2 Chronic Toxicity (Ceriodaphnia dubia) P/F at 22%: January, April, July, and October [see Special
Condition A.(2)].
There shall be no discharge of floating solids or visible foam in other than trace amounts.
NPDES No. NC0078000

Michael F. Easley
Governor
o G
7 William G. Ross, Jr., Secretary
7 North Carolina Department of Environment and Natural Resources
Alan W. Klimek, Director
Division of Water Quality
Water Quality Section/ NPDES Unit
FAX: [phone]
6/14/02
FAX TO: W1tot1e11eSmitt eo PS---1Cfk uc tc- 63
FAX NUMBER: 782-5905
Re.: Brenntag Southeast (Worth)
FROM: Susan A. Wilson, P.E.
PHONE: [phone], ext. 510
NO. OF PAGES INCLUDING THIS SHEET: 7
Chuck:
Here's the permit pages minus the boiler plate (and minus the map). Call me if you need a hardcopy.
Susan
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