NC0005177_Wasteload Allocation_19930908 (2)

NPDES DOCUMENT !MCANNINO COVER SHEET
NPDES Permit:
NC0005177
FMC Lithium
Document Type:
Permit Issuance
Wasteload Allocation,
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Staff Report
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
September 8, 1993
This document in printed on reuse paper - ignore any
content on the rezrerse nide

NFDES WASTE LOAD ALLOCATION
County; Gaston
PERMIT NO.: NC0005177
PERMITTEE NAME: FMC Corporation
FACILITY NAME: Lithium Division
Facility Status: Existing
Permit Status: Renewal with Modification
Major - I -Minor
Pipe No.: 001
Design Capacity: 0.500 MGD
Domestic (% of Flow): 3.2 %
Industrial (% of Flow): 96.8 %
Comments:
Outfall 002 listed under GKPR no longer in use. The company is
trying to reduce the discharge amount and wishes to have limits at 0.1
MGD. 0.3 MGD. 0.4 MGD, 0,5 MGD and 0.615 MGD.
RECEIVING STREAM: an unnamed tributary to Abernethy Creek
Class: C
Sub -Basin: 03-08-37
Reference USGS Quad: F 13 SE (please attach)
Regional Office: Mooresville Regional Office
Previous Exp. Date: 8/31/91 Treatment Plant Class: Class III
Classification changes within three miles:
none
Requested by:
Prepared by:
Reviewed b
i3 s
09)
Randy Kepler
Date: 8/17/92
�9, /°Lite Date: 9 3 93
CLndIA/J,A-ate._ Date: CL'
93
Modeler
Drainage Area (mil) • 7 Avg. Streamflow (cfs): /.7
7Q10 (cfs) o ,.z 7 Winter 7Q10 (cfs) o. '3 30Q2 (cfs) o . sy
Date Rec.
8 Vi `10't s"(6)
Toxicity Limits: IWC_ 7I %—
Instream Monitoring:
Parameters 01-14-;1-g-/
Upstream
Downstream y
Acut hroniC
Location 'Location ca crew.—
Location 6 .. s1 z 1'..4Q
v
Recommended Limits
TSS aay�D)
pH (SU):
Selenium (µg/i):
Dibromochloromethane (µg/1)
Bromodichloromethane (µg/I)
BODS (mg/1):
NH3-N (mg/1):
Dissolved Oxygen (mg/I):
Chlorides (mg/1):
Total Dissolved Solids (mg/1):
Copper (µg/1):
Total Nitrogen (mg/I):
Total Phosphorus (mg/1):
Chromium (µg/1):
Nickel (4/1):
Zinc @g/I):
Bromoform (ug/l)
Chloroform (µg/I)
Monthly Average
0.500
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily Max. WQ or EL
260.82
6-9
6.7 ✓
30
BPT
PT
Q
Q (EPA Criteria)
Q (EPA Criteria)
Comments:

G Dl PT. OF NATURAL
RESOURCES AND
COMMUNITY DEVELOYMEArrr
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:
FACT SHEET FOR WASTELOAD ALLOCATION
Request #
FMC Corporation - Lithium Division
NC0005177
Industrial - 96.8% / Domestic - 3.2%
Existing
Renewal w/ modification
UT Abernethy Creek
C
030837
Gaston
Mooresville'\y
Kepler
8/17/92
F13SE
7.
AUG
0 9 1993
7075(b)
OFFICE
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
ii G:MEN!
1.4
0:26 Z �}
0.43
1.7
0.58
74
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
*THIS WLA WAS HELD PENDING RESULTS OF QUAL2E MODEL FOR CROWDERS
CREEK BASIN. MODEL RESULTS INDICATE THAT RENEWAL OF EXISTING LIMITS
WOULD PROTECT INSTREAM WATER QUALITY.
FMC Corp is requesting limits for the following design flows, 0.1 MGD, 0.3 MGD, 0.4 MGD, -
0.5 MGD, and 0.615 MGD. Existing limits are renewed with additional monitoring requirements:
Special Schedule Requirements and additional comments from Reviewers:
Recommended by: 4,1244)
Date: 8/3/93
Reviewed by
Instream Assessment: OWL& J4LA Date: V-1///--
Regional Supervisor: i '6. / Ar T Date:
Date:
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
SEP 0 3 1993

2
TOXICS/METALS/CONVENTIONAL PARAMETERS
Type of Tokicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
Existing Limits
Wasteflow (MGD)
TSS (lbs/day):
pH (SU):
Selenium (µg/1):
BOD5 (m ):
NH3-N (m ):
Chlorides ( g/1):
Total Disso ved Solids (mg/I):
Copper (µg/1):
Total Nitrogen (mg/1):
Total Phosphorus (mg/1):
Recommended Limits
Wasteflow GD)
TSS (lbs/day):
pH (SU)
Selenium (µg/1):
Dibromochloromethane (µg/1)
Bromodichl romethane (µg/1)
BOD5 (mg/1):
NH3-N (mg/1):
Dissolved OCygen (mg/1):
Chlorides (mg/1):
Total Dissolved Solids (mg/1):
Copper (µg4):
Total Nitrog' n (mg/1):
Total Phosphorus (mg/1):
Chromium (g/1):
Nickel (µg/l :
Zinc (14/1):
Bromoform (ug/1)
Chloroform (µg/1)
Chronic Ceriodaphnia P/F
82.65%
74%
JAN APR JUL OCT
Monthly Average Daily Max.
0.615
88.8 266.3
6-9 6-9
12
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Monthly Average
0.500
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Limits Changes Due To:
Change in 7910 data
Change in stream classification
Relocation off discharge
Change in wasteflow
New pretreatment information
Other (onsittoxicity study, interaction, etc.)
Daily Max. WQ or EL
260.82
6-9
6.7
30
BPT
BPT
WQ
WQ (EPA Criteria)
WQ (EPA Criteria)
EgomvigisLAUT cad
Se
BOD5, DO,
Dibromochloromethane,
Bromodichloromenthane
X_ P eter(s) are water quality limited. For some parameters, the available load capacity of the immediate
receiving wader will be consumed. This may affect future water quality based effluent limitations for additional
dischargers githin this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: @ convenient upstream location
Downstream Location: immediately downstream of outfall
Parametes: Chloride, Conductivity, Total Dissolved Solids, DO
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
fE ' T
Has the f . cility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, them attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumption's that were made, and description of how it fits into basinwide plan)
Additional Tnformation attached? (Y or N) If yes, explain with attachments.

to
.1
Facility Name FMC CORP.-LITHIUM DIVISION Permit # NC0005177_ Pipe # 001
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is _74% (defined as treatment two in the North Carolina procedure document). The permit holder shall
perform quarterly monitoring using this procedure to establish compliance with the permit condition. The first
test will be performed after thirty days from the effective date of this permit during the months of_
_JAN APR JUL OCT_. Effluent sampling for this testing shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
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 TGP3B.
Additionally, DEM Form AT-1 (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 corriplete 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 this monitoring requirement 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 0.27 cfs
Permitted Flow 0.500 MGD
IWC 74 %
Basin & Sub -basin CTB37
Receiving Stream UT Abernethy Creed
County Gaston
QCL PtF Version 9191

NPDES WASTE LOAD ALLOCATION
9
PERMIT NO.: NC0005177
PERMTITEE NAME: FMC Corporation
FACILITY NAME: Lithium Division
Facility Status: Existing
Permit Status: Renewal with Modification
Major Minor
Pipe No.: 001
Design Capacity: 0.goo MGD
Domestic (% of Flow): 3.2 %
Industrial (% of Flow): 96.8 %
Modeler I Date Rec. #
3),AP I a l`I 4 Plo' sT,-)
Drainage Area (mil) 1• 11 Avg. Streamflow (cfs • 7 7
7Q10 (cfs) Z. a 7 Winter 7Q10 (cfs)
o.
Toxicity Limits: IWC %Q % A
Comments:
Outfall 002 listed under GKPR no longer in use. The company is
trying to reduce the discharge amount and wishes to have limits at 0.1
MGD. 0.3 MGD. 0.4 MGD. 0.5 MGD and 0.615 MGD.
RECEIVING STREAM: an unnamed tributary to Abernethy Creek
Class: C
Sub -Basin: 03-08-37
Reference USGS Quad: F 13 SE (please attach)
County: Gaston
Regional Office: Mooresville Regional Office
Previous Exp. Date: 8/31/91 Treatment Plant Class: Class III
Classification changes within three miles:
none
Requested by: Randy Kepler Date: 8/17/92
Prepared by: �/�l. ��`�i Date: 0/9 3
Reviewed : Date: `) / )je7_3
/s
oktet 93
Instc am Monitoring:
Parameters JtifL4i:&$1
Upstream Y
Downstream
Recommended Limits
Y
!Wasteflow (MGD)
TSS (lbs/day):
pH (SU):
Selenium (µgA):
Dibromochloromethane (µg/1)
Bromodichloromethane (µg/I)
BODS (mg/1):
NH3-N (mg/1):
Dissolved Oxygen (mg/1);
Chlorides (mg/1):
Total Dissolved Solids (mg/1):
Copper (µg/1):
Total Nitrogen (mg/1):
otal Phosphorus (mg/1):
hromium (µg/1):
ickel (µg/1):
inc (4/1):
Bromoform (ug/1)
Chloroform (4/1)
30Q2 (cfs)
0..57
,7L'O/idim,atZb/
Location
Location
Monthly Average
0.400
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily )WQOrEL
260.82
6-9
7.2 '1
49 ✓.
32I
BPT
BPT
WQ
WQ (EPA Criteria
WQ (EPA Criteria)
Comments:

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
S ubbasin:
County:
Regional Office:
Requestor:
Date of Request:
Togo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
!�. C. DEPT. OF NATURAL
¢¢FS AND
OOMMUNNIT AEVEL0PMENT
Request #
FMC Corporation - Lithium Division
NC0005177
Industrial - 96.8% / Domestic - 3.2%
Existing
Renewal w/ modification
UT Abernethy Creek
C
030837
Gaston
Mooresville I� (
Kepler
8/17/92
F13SE
AUG 0 9 1993
DIVISION OF ENVIRONMENTAL MANAGEMENT
MOORESVILLE REGIONAL OFFICE
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2): 1.4
Summer 7Q10 (cfs): -0 6(
Winter 7Q10 (cfs): 0.43
Average Flow (cfs): 1.7
30Q2 (cfs): 0.58
IWC (%): 70
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
*THIS WLA WAS HELD PENDING RESULTS OF QUAL2E MODEL FOR CROWDERS
CREEK BASIN. MODEL RESULTS INDICATE THAT RENEWAL OF EXISTING LIMITS
WOULD PROTECT INSTREAM WATER QUALITY.
FMC Corp is requesting limits for the following design flows, 0.1 MGD, 0.3 MGD, 0.4 MGD,
0.5 MGD, and 0.615 MGD. Existing limits are renewed with additional monitoring requirements.:
Special Schedule Requirements and additional comments from Reviewers:
Recommended by;
Reviewed by
Instream Assessment:
Regional Supervisor: %)?6
Permits & Engineering: (
Date: 8/3/93
f
, 4/ACt & -&- ') Q'n Date: qz/b._3
1 / Arc Date: 4' Z1%-r
Date:_______
7
RETURN TO TECHNICAL SERVICES BY: SEP 0 3 1993

1
2
TOXICS/NIETALS/CONVENTIONAL PARAMETERS
Type of Toxicity Test
Existing Limit:
Recommended Limit
Monitoring Schedule:
Existing Liipits
Wasteflow (MGD)
TSS (lbs/day):
pH (SU):
Selenium (1.g/1):
BOD5 (m :
NH3-N (m ):
Chlorides (mg/1):
Total Dissolved Solids (mg/1):
Copper (4/1):
Total Nitrogen (mg/1):
Total Phosphorus (mg/1):
Recommended Limits
Wasteflow (MGD)
TSS (lbs/day):
pH (SU):
Selenium (µg/1):
Dibromochk romethane (µg/l)
Bromodichloromethane (4/1)
GODS (mg/1
NH3-N (mg/1):
Dissolved Oxygen (mg/1);
Chlorides (41):
Total Dissolved Solids (mg/1):
Copper (j.tg/1:
Total Nitrogen (mg/1):
Total Phosphorus (mg/1):
Chromium (µg/1):
Nickel (1.1g/1):
Zinc (4/1):
Bromoform (ug/1)
Chloroform 1.tg/1)
Chronic Ceriodaphnia P/F
82.65%
70%
JAN APR JUL OCT
Monthly Average
0.615
88.8
6-9
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Monthly Average
0.400
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily Max.
266.3
6-9
12
Daily Max. WQ or EL
260.82
6-9
7.2
49
32,/
BPT
BPT
WQ
WQ (EPA Criteria)
WQ (EPA Criteria)
Limits Chan es Due To: Parameter(s) Affected
Change in 7(110 dataSe
Change in s classification
Relocation tin
Change in w teflow
New pretreatment information
Other (onsite toxicity study, interaction, etc.)
BOD5, DO,
Dibromochloromethane,
Bromodichloromenthane
X Paraaieter(s) are water quality limited. For some parameters, the available load capacity of the immediate
receiving wa r will be consumed. This may affect future water quality based effluent limitations for additional
dischargers thin this portion of the watershed.
OR
No eters are water quality limited, but this discharge may affect future allocations.

ti
3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: @ convenient upstream location
Downstream Location: immediately downstream of outfall
Parameters: . Chloride, Conductivity, Total Dissolved Solids, DO
Special upstream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
WQuld a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Special Instructions or Conditions
Wasteload dent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional information attached? (Y or N) If yes, explain with attachments.

Facility Name FMC CORP.-LITHIUM DIVISION Permit # NC0005177_ Pipe # 001
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is _70_% (defined as treatment two in the North Carolina procedure document). The permit holder shall
perform quarterly monitoring using this procedure to establish compliance with the permit condition. The first
test will be performed after thirty days from the effective date of this permit during the months of_
_JAN APR JUL OCT__. Effluent sampling for this testing shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
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 TGP3B.
Additionally, DEM Form AT-1 (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 todcity 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 this monitoring requirement 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 0.27 cfs
Permitted Flow 0.400 _ MGD
IWC 70
Basin & Sub -basin CTB37
Receiving Stream UT Abernethy Creed
County Gaston
Recommended by:
Date 7/22/93
QCL PIF Version 9/91

NPDES WASTE LOAD ALLOCATION
County; Gaston
PERMIT NO.: NC0005177
PERMITTEE NAME:
FACILITY NAME:
FMC Corporation
Lithium Division
Facility Status: Existing
Permit Status: Renewal with Modification
Major Minor
Pipe No.: 001
Design Capacity: 0.300 MGD
Domestic (% of Flow): 3.2 %
Industrial (% of Flow): 96.8 %
Comments:
Outfall 002 listed under GKPR no longer in use. The company is
trying to reduce the discharge amount and wishes to have limits at 0.1
MGD, 0.3 MGD, 0.4 MGD, 0.5 MGD and 0.615 MGD.
RECEIVING STREAM: an unnamed tributary to Abernethy Creek
Class: C
Sub -Basin: 03-08-37
Reference USGS Quad: F 13 SE (please attach)
Regional Office: Mooresville Regional Office
Previous Exp. Date: 8/31/91 Treatment Plant Class: Class III
Classification changes within three miles:
none
Requested by:
Prepared by:
Modeler I Date Rec. I #
S,. ,.) 9 l-1g rlo't s @)
Drainage Area (mil) 1. It Avg. Streamflow (cfs): / 7
7Q10 (cfs) o. 27 Winter 7Q10 (cfs) o, 30Q2 (cfs) o•.�
Toxicity Limits: IWC L03 %
Instream Monitoring:
Parameters
Upstream r
Downstream i
Recommended Limits
Acute4-4;
t1,40;),44,Lor-ket2i
L ocation�_,E'--
Location dn. ,.¢.t
Wasteflow (MGD)
TSS (lbs/day):
pH (SU):
Selenium (µg/1):
Dibromochloromethane (41)
Bromodichlommethane (µg/1)
BOD5 (mg/1):
NH3-N (mg/1):
Dissolved Oxygen (mg/1):
Chlorides (mg/1):
Total Dissolved Solids (mg/1):
Copper (µg/1):
Total Nitrogen (mg/1):
Total Phosphorus (mg/1):
Chromium (4/1):
Nickel (14/1):
Zinc (µg/1):
Bromoform (ug/1)
Chloroform 4tg/1)
Monthly Average
0.300
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily Max. WQ or EL
260.82
6-9
7.9 ✓
35 ✓
BPT
BPT
WWQ (EPA Criteria)
WQ (EPA Criteria)
Comments:

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
S ubbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION p G 0 9 19 "3
towai
Booko4(I ES`1iLtty REGIatt
Request #
FMC Corporation - Lithium Division
NC0005177
Industrial - 96.8% / Domestic - 3.2%
Existing
Renewal w/ modification
UT Abernethy Creek
C
030837
Gaston
Mooresville`A
Kepler
8/17/92
F13SE
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
1.4
0.43
1.7
0.58
63
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
*THIS WLA WAS HELD PENDING RESULTS OF QUAL2E MODEL FOR CROWDERS
CREEK BASIN. MODEL RESULTS INDICATE THAT RENEWAL OF EXISTING LIMITS
WOULD PROTECT INSTREAM WATER QUALITY.
FMC Corp is requesting limits for the following design flows, 0.1 MGD, 0.3 MGD, 0.4 MGD,
0.5 MGD, and 0.615 MGD. Existing limits are renewed with additional monitoring requirements::
Special Schedule Requirements and additional comments from Reviewers:
Recommended by:
Reviewed by
Instream Assessment:
4
i ail LA c ,UthA / ►�
Regional Supervisor: /')P- GT-�1 � iirLJ
Permits & Engineering:
Date: 8/3/93
Date:
Date:
Date:
S E P 0 3 1993
RETURN TO TECHNICAL SERVICES BY:

2
TOXICS/METALS/CONVENTIONAL PARAMETERS
Type of Toxicity Test:
Existing Li nit
Recommended Limit
Monitoring Schedule:
Existing Lijnits
Wasteflow (MGD)
TSS (lbs/da. ):
pH (SU):
Selenium g/1):
BOD5 (m ):
NH3-N (m ):
Chlorides (, g/1):
Total Disso ved Solids (mg/1):
Copper 041):
Total Nitrogen (mg/1):
Total Phosphorus (mg/1):
Recommended Limits
Wasteflow GD)
TS S (lbs/da):
pH (SU):
Selenium (4/1):
Dibromochloromethane (µg/1)
Bromodichl romethane (l.ig/1)
BOD5 (mg/1 :
NH3-N (mg/1):
Dissolved Oxygen (mg/1):
Chlorides (mg/1):
Total Dissolved Solids (mg/1):
Copper (nil):
Total Nitrogen (mg/1):
Total Phosp orus (mg/1):
Chromium (xg/1):
Nickel (4/1):
Zinc (.tg/1):
Bromoform ug/1)
Chloroform (µg/1)
Limits Changes Due To:
Change in 7Q10 data
Change in s classification
Relocation o discharge
Change in w teflow
New pretreatment information
Other (onsite toxicity study, interaction, etc.)
Chronic Ceriodaphnia P/F
82.65%
63%
JAN APR JUL OCT
Monthly Average Daily Max.
0.615
88.8 266.3
6-9 6-9
12
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Monthly Average
0.300
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily Max.
260.82
6-9
7.9
54
WQ or EL
BPT
BPT
WQ
WQ (EPA Criteria)
WQ (EPA Criteria)
Parameter(s) Affected
Se
BOD5, DO,
Dibromochloromethane,
Bromodichloromenthane
X_ P eter(s) are water quality limited. For some parameters, the available load capacity of the immediate
receiving wa will be consumed. This may affect future water quality based effluent limitations for additional
dischargers 'thin this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

INSTREAM MONITORING REQUIREMENTS
Upstream ..ovation: @ convenient upstream location
Downstream Location: immediately downstream of outfall
Parameter: Chloride, Conductivity, Total Dissolved Solids
Special instream monitoring locations or monitoring frequencies:
Ad
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
f Exi tin Trea en
Has the f . ' ty demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
tion
Wasteload ent to EPA? (Major) (Y or N)
(If yes, the attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

Facility Name FMC CORP.-LITHIUM DIVISION Permit # NC0005177_ Pipe # 001
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is _63 % (defined as treatment two in the North Carolina procedure document). The permit holder shall
perform quarterly monitoring using this procedure to establish compliance with the permit condition. The first
test will be performed after thirty days from the effective date of this permit during the months of_
JAN APR JUL OCT_. Effluent sampling for this testing shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
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 TGP3B.
Additionally, DEM Form AT-1 (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 this monitoring requirement 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 0.27 cfs
Permitted Flow 0.300 _ MGD
IWC 63
Basin & Sub -basin CTB37
Receiving Stream UT Abernethy Creek_ / /
County Gaston ( /Date 7/22/93
Rec • mmended by:
QCL PIF Version 9191

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0005177
pERmrnEE NAME: FMC Corporation
FACILITY NAME: Lithium Division
Facility Status: Existing
Permit Status: Renewal with Modification
Major _ or
Pipe No.: 001
Design Capacity: 0. too MGD
Domestic (% of Flow): 3.2 %
Industrial (% of Flow): 96.8 %
Comments:
Outfall 002 listed under GKPR no longer in use. The company is
trying to reduce the discharge amount and wishes to have limits at 0.1
MGD. 0.3 MGD. 0.4 MGD, 0.5 MGD and 0.615 MGD.
RECEIVING STREAM: an unnamed tributary to Abernethy Creek
Class: C
Sub -Basin: 03-08-37
Reference USGS Quad: F 13 SE (please attach)
County; Gaston
Regional Office: Mooresville Regional Office
Previous Exp. Date: 8/31/91 Treatment Plant Class: Class III
Classification changes within three miles:
none,
Requested by: ,1 Randy Kepler Ceek
Prepared by:
Reviewed
`Sa b., 13 S
wa, `^lq
Date: 8/17/92
Date: 'It? 9 3
D
3
c
kg
1 Modeler
1 Date Rec.
#
SMt
e tljg
'io-ts-(I)
Drainage Area (mi`) ' 1.' Avg. Streamflow (cfs): 7
7Q10 (cfs) 0.27 Winter 7Q10 (cfs) o• Y3 30Q2 (cfs) '.S '
Toxicity Limits: IWC 3(.40 % Acute hronic�
Instream Monitoring:
Parameters CC/
Upstream Y Location
Downstream Y Location ►M-1 �.-r►,.- .e,(
Recommended Limits
Wasteflow (MGD)
TSS abs/day):
pH (SU):
Selenium (14/1):
Dibromochloromethane (µg/1)
Bromodichloromethane (µg/I)
BODS (mg/I):
NH3-N (mg/1):
Dissolved Oxygen (mg/1):
Chlorides (mg/1):
Total Dissolved Solids (mg/I):
Copper (µg/I):
Total Nitrogen (mg/I):
Total Phosphorus (mg/1):
Chromium (µg/1):
Nickel (µg/I):
Zinc @g/1):
Bromoform (ug/1)
Chloroform (µg/1)
Monthly Average
0.100
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily Max. WQ or EL
260.82
6-9
13.7V
93
60 ✓
BPT
BPT
WQ
WQ (EPA Criteria)
WQ (EPA Criteria)
Comments:

lief. morn.o
RISOtrECES
MAtviuMry DEVELOP:WS{W
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:
FACT SHEET FOR WAS1'ELOAD ALLOCATION
Request #
FMC Corporation - Lithium Division
NC0005177
Industrial - 96.8% / Domestic - 3.2%
Existing
Renewal w/ modification
UT Abernethy Creek
C
030837
Gaston , {�
Mooresvilla' I
Kepler
8/17/92
F13SE
Stream Characteristic:
USGS #
Date:
Drainage Area (nii2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
AUG 0 9 1993
i1141. 'WANAGEMER
R1b1BKAL OffHBE
1.4
$i6- (3 2
0.43
1.7
0.58
36
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
*THIS WLA WAS HELD PENDING RESULTS OF QUAL2E MODEL FOR CROWDERS
CREEK BASIN. MODEL RESULTS INDICATE THAT RENEWAL OF EXISTING LIMITS
WOULD PROTECT INSTREAM WATER QUALITY.
FMC Corp is requesting limits for the following design flows, 0.1 MGD, 0.3 MGD, 0.4 MGD,
0.5 MGD, and 0.615 MGD. Existing limits are renewed with additional monitoring requirements.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by:
Reviewed by
Instream Assessment: .LVt
Regional Supervisor: i?'
Permits & Engineerin
Date: 8/3/93
41/210Lehafry ) 4�L Date: /16,3
Date:
Date: e7A-M3
SEP 0 3 1993
RETURN TO TECHNICAL SERVICES BY:

2
TOXICS/1VIETALS/CONVENTIONAL PARAMETERS
Type of Toxicity Test:
Existing Li it:
Recommen&d Limit
Monitoring Schedule:
Existing Li its
Wasteflow (MGD)
TSS (Ibs/day):
pH (SU):
Selenium (µ ):
BOD5 (mg/1:
NH3-N (m ):
Chlorides (mg/1):
Total Dissolved Solids (mg/I):
Copper (14/1):
Total Nitrogen (mg/1):
Total Phosphorus (mg/1):
Recommend
Limits
Wasteflow (MGD)
TSS (lbs/day):
pH (SU):
Selenium (14/1):
Dibromochl000methane (4/1)
Bromodichl000methane (µg/1)
BOD5 (mg/1):
NH3-N (mg/1
Dissolved O ygen (mg/1):
Chlorides (mg/I):
Total Dissolved Solids (mg/1):
Copper (µgip:
Total Nitroggn (mg/1):
Total Phosphorus (mg/1):
Chromium (g/1):
Nickel (j4/1).
Zinc (µg/1):
Bromoform (og/1)
Chloroform (µg/1)
Limits Changes Due To:
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Other (onsite toxicity study, interaction, etc.)
Chronic Ceriodaphnia P/F
82.65%
36%
JAN APR JUL OCT
Monthly Average
0.615
88.8
6-9
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Monthly Average
0.100
86.94
6-9
30
monitor
5
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
Qrtrly monitoring
Qrtrly monitoring
Daily Max.
266.3
6-9
12
Daily Max. WQ or EL
260.82
6-9
13.7
93 ✓
60
BPT
BPT
WQ
WQ (EPA Criteria)
WQ (EPA Criteria)
Parameterfs AAffected
Se
BOD5, DO,
Dibromochloromethane,
Bromodichloromenthane
X_ Parameter(s) are water quality limited. For some parameters, the available load capacity of the immediate
receiving wa r will be consumed. This may affect future water quality based effluent limitations for additional
dischargers 'thin this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: @ convenient upstream location
Downstream Location: immediately downstream of outfall
Parameters. Chloride, Conductivity, Total Dissolved Solids, DO
Special instream monitoring locations or monitoring frequencies:
Adequacy
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
f Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? 'es No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

Facility Name FMC CORP.-LITHIUM DIVISION Permit # NC0005177 _ Pipe # 001 _
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is _36_% (defined as treatment two in the North Carolina procedure document). The permit holder shall
perform quarterly monitoring using this procedure to establish compliance with the permit condition. The first
test will be performed after thirty days from the effective date of this permit during the months of _
_JAN APR JUL OCT_. Effluent sampling for this testing shall be performed at the NPDES permitted fmal
effluent discharge below all treatment processes.
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 TGP3B.
Additionally, DEM Form AT-1 (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 this monitoring requirement 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 dayss of initial monitoring event). Failure to submit suitable test results will constitute
noncompliance with monitoring requirements.
7Q10 0.27 cfs
Permitted Flow 0.100 _ MGD
IWC 36 %
Basin & Sub -basin CTB37
Receiving Stream UT Abernethy Creek_
County Gaston
QCL Pip Version 9/91