NC0080853_Authorization to Construct_19940602

State of North Carolina
Department of Environment,
)OON Health and Natural Resources
Division of Environmental Management
James.B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard,-Jr.—P.E:;-Director
June 2, 1994
Mr. Henry L. Cambell
AT&T Network Systems
3300 Lexington Road, S.E.
Winston-Salem, NC 27102
095A
�EHNR
Subject: Permit No. AC0080853
Authorization to Construct
AT&T Lexington Road Facility
Wastewater Treatment Facility
Forsyth County
Dear Mr. Cambell:
A letter of request for an Authorization to Construct was received December 16, 1993 and was
issued by the Division on March 29, 1994. This letter serves as an amendment to this authorization to
construct. Authorization is hereby granted for the construction of a 0.302 MGD wastewater treatment
facility to treat contaminated groundwater with the following additions to the March 29th approval; an In
Situ Bio-remediation system consisting of phosphate and nitrogen addition to recycled effluent, infiltration
galleries, a bio-venting system and necessary piping and pumps for proper operation. Approval is also
granted for the optional use of skimmer pumps should it turn out no free product occurs at this site.
Should any amount of free product be found on site in accordance with the groundwater remediation
occurring, the skimmer pumps shall be installed for removal of the free product. PLEASE NOTE: The
approval of the In -Situ Bio-remediation system is conditional on receipt of approval of design yy the Solid
and Hazardous Waste Division of the Department of Environment, Health and Natural Resources. Should
the approval of the In -Situ Bio-remediation system be denied by Solid and Hazardous waste then Permits
and Engineering's approval shall be automatically revoked.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES
Permit No. NCO080853 issued March 18, 1994, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0080853.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Environmental Management.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Petmittee shall take immediate corrective action, including those as may be required by this
Division, such as the construction of additional or replacement wastewater treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number 910-896-7007, shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10 % post -consumer paper

Permit No. NC0080853
Authorization to Construct
PO, AT&T Company
June 2, 1994
Page 2
Upon completion of construction and prior to operation -of this permitted facility, a certification-- -
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment
facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the
classification assigned to the wastewater treatment facilities by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with
the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays, and
must properly manage and document daily operation and maintenance of the facility and must comply with
all other conditions of Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must
submit a letter to the Certification Commission which designates the operator in responsible charge within
thirty days after the wastewater treatment facilities are 50% complete.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
,o•t, life of the facility.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Environmental Management in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other govemment
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Mr. Randy Kepler, telephone number 919/733-
5083.
Sincerely,
Pre o Jr., P.E.
cc: Forsyth County Health Department
Winston-Salem Regional Office, Water Quality
John A. Balchan, P.E., ENSR C&E
Training and Certification Unit
Permits and Engineering
r Central Files

' State of North Carolina IFA
t Department of Environment,
Health and Natural Resources •
Division of Environmental Management FA
James B. Hunt, Jr., Governor 111116
Jonathan B. Howes, Secretary p E H N FZI
A. Preston Howard, Jr., P.E., Director
March 29, 1994
Mr. Henry L. Cambell
AT&T Network Systems
3300 Lexington Road, S.E.
Winston-Salem, NC 27102
Subject: Permit No. AC0080853
Authorization to Construct
AT&T Lexington Road Facility
Wastewater Treatment Facility
Forsyth County
Dear Mr. C�mbell: I
A letter of request for an Authorization to Construct was received December 16, 1993 by the
Division and final plans and specifications for the subject project have been reviewed and found to be
satisfactory. Authorization is hereby granted for the construction of a .302 MGD wastewater treatment
facility to treat contaminated groundwater. This facility includes four systems: System A includes six (6)
groundwater wells, a feedwater tank with the addition of caustic and permanganate, oxidizing filter and a
100 gpm packed tower air stripper; System B includes five (5) groundwater wells, a feedwater tank with
caustic and permanganate addition, an oxidizing filter, a 125 gpm packed tower air stripper with a duct
heater and post heat exchanger, an optional 125 gpm shallow tray air stripper with a duct heater and the
identical heat exchanger from the first air stripper; System C includes four (4) groundwater wells, an
adsorption media filter, and connects into the feedwater tank of System A; System D includes a
settlinglineutralization tank with polymer flocculant addition and connects into the feedwater tank of System
B. System A and B connect prior to the last stage which is a 209 gpm granular activated carbon tank with
6500 pounds of GAC. The total system ends with a treated water holding tank with discharge of treated
wastewater into an unnamed tributary of Salem Creek. This authorization to construct approval includes
all that is listed above and including all piping, valves, electrical fixtures and appurtenances needed for
proper operations of the treatment facility.
This Authorization to Construct is issued. in accordance with Part III, Paragraph A of NPDES
Permit No. NCO080853 issued March 18, 1994, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0080853.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Environmental Management.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be required by this
n Division, such as the construction of additional or replacement wastewater treatment or disposal facilities.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post consumer paper

Permit No. NC0080853
Authorization to Construct
AT&T Company
March 29, 1994
Page 2
The Winston-Salem Regional Office, telephone number 910-896-7007, shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a certification
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment
facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the
classification assigned to the wastewater treatment facilities by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with
the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class H, III, and IV facility at least daily, excluding weekends and holidays, and
must properly manage and document daily operation and maintenance of the facility and ust comply with
all other conditions of Title 15A, Chapter 8A, .0202. Once the facility is classified, thPermittee must
submit a letter to the Certification Commission which designates the operator in responsible charge within
i..{ thirty days after the wastewater treatment facilities are 50% complete.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Environmental Management in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Mr. Randy Kepler, telephone number 919/733-
5083.
5Sinc I
r qn azd, Jr., P.E.
cc: Forsyth County Health Department
Winston-Salem Regional Office, Water Quality
John A. Balchan, P.E., ENSR C&E
Training and Certification Unit
Permits and Engineering
Central Files

cci-;-4';Q
cc: Permits and Engineering
Technical Support Branch
County Health Department
Central Files
WSRO
1:'4 FFR i n Pti j: ,^,
SOC PRIORITY PROJECT: YES _ NO X
IF Yes, SOC No.:
To: Permits and Engineering Unit
Water Quality Section
Attention: (Randy Kepler)
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT REPORT AND RECOMMENDATIONS
Date: February 8, 1994
County: Forsyth
Permit No. NC0080853
PART I GENERAL INFORMATION
1. Facility Name and Current Address: AT&T
3300 Lexington Rd., SE
Winston-Salem, NC 27102
2. Date of most recent NPDES Staff Report: February 24, 1993
3. Changes since previous action on NPDES Permit: None known,
however, see Memo from this office dated Jan. 10, 1994.
4. Verify Discharge Point(s) on plans with current NPDES Permit.
List for all discharge points.
Latitude: 36003'18" Longitude: 80°13'51"
Attached is a USGS map extract with discharge point on map.
U.S.G.S. Quad No. C-18SW U.S.G.S. Name W-S East
5. Treatment plant classification: Class II (see attached rating
sheet) Note, this is a much more complex than usual GWR
system.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Existing treatment facility:
a. What is the current permitted capacity of the facility?
301,000 gpd; 295,300 gpd proposed in last permit
application.

b. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
(2) years: None known.
c: What is the actual treatment capacity of the current
facility (design volume)? Not built.
d. Please provide a description of existing or substantially
constructed wastewater treatment facilities: N/A
2. Please provide a description of proposed wastewater treatment
facilities: Three remediation processes and one byproduct
process:
System "A" - VOC groundwater wells; feedwater tank; oxidizing
filter; packed tower air stripper; carbon
treatment; treated water tank from which recycle to
systems "A" & "B" will occur along with discharge
to outfall structure.
System "B" - VOC groundwater wells with Acetone; feedwater
tank; oxidizing filter; packed tower air stripper;
heat exchanger; gas fired boiler; shallow tray air
stripper; heat exchanger; with discharge into
system "A" just before carbon treatment.
System "C" - TPH groundwater wells; adsorption media filter;
with discharge into system "A" feedwater tank.
System "D" - Backwashes, blowdowns, and carbon liquids;
settling/neutralization tank; with solids to
filter press and 55-gallon drums; with liquids
discharged into system "B" feedwater tank.
3. Residuals handling and utilization/disposal scheme: Solids to
be removed via a filter press and stored in 55-gallon drums
per treatment schematic. Unsure of final disposal plans.
4. Important SOC, JOC or Compliance Schedule dates: N/A
PART III - EVALUATION AND RECOMMENDATIONS
This office does not object to the issuance of an A/C for this
project, provided that any Groundwater Section concerns are
addre sed.
2-
'§ignature of report preparer Date
2-- !Lf±
Water Quality Supervisor Date

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North Carolina Works
AT&T
Network Systems,
3300 Lexington Rd., S.E.
Winston-Salem, NC 27102
919 784-1110
December 15, 1993
Ms. Coleen Sullins, Supervisor ,
NPDES Permits Group
Division of Environmental Management = -
Department of Environmental, Health & -Natural Resources
P.O. Box 29535
Raleigh, North Carolina 27626-0535 -�
NPVD
Dear Ms. Sullins: )2-t6-S3.
62t,K
Re: NPDES Permit NC0080853 Renewal - Comments on DRAFT Permit
This letter responds to Mr. Steve W. Tedder's letter November 22, 1993, which
provided a "Draft" copy of Permit No. NC0080853 and notification of the comment period
which ends on December 31, 1993.
Section "A" of the draft permit establishes a 90% Pass/Fail Chronic Toxicity effluent
limitation. In agreement with our telephone conversations of December 13, 1993 regarding
the removal of the Chronic Toxicity limitation, we request the removal of this limitation.
Our request is based on your advice that normal policy, for your office, does not
requiring Chronic Toxicity Testing of groundwater treatment effluents which receive
carbon treatment prior to discharge. I have been advised by Mr. Lee Spencer with the
Winston-Salem Regional Office of DEM that his report to your office, regarding the renewal
of this permit, supports the removal of this permit condition.
We have reservations about a pass/fail testing requirement which is subject to a
wide range of variabilities in normal groundwater parameters and in sample collection and
analysis. AT&T requests that the permit effluent limitations be restricted to the organic and
inorganic effluent characteristics identified in the permit
Western Electric® products

� r
If you require addition information on this matter, please contact me (Phone
919-784-2352).
Sincerely,
H.L. Campbell
Senior Plant Engineer
Enclosure: -
Copy to:
Mr. D.L. Payne