NC0000361_Issuance of Permit_20040623

• State of North Carolina
Department of Environment Afflricr,,A,and Natural Resources
Division of Water Quality -
Michael F. Easley, Governor NCDENR
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
June 23, 2004
Mr.Jeffrey S.Ferguson
Unimin Corporation
P.O. Box 588
Spruce Pine,NC 28777
Subject: NPDES Permit Issuance
NPDES Permit NC0000361
Unimin Corp-Schoolhouse Quartz Plant
Avery County
Dear Mr. Ferguson:
Division personnel have reviewed and approved your application for renewal of 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.
Environme tai Protection Agency dated May 9, 1994 (or as subsequently amended.)
This permit authorizes Unimin:Corporation to discharge up to 2.16 MGD of treated
wastewater from the Schoolhouse Operation to the North Toe River, a class C Trout water
in the French Broad River Basin. The permit includes discharge limitations and/or
monitoring for flow, total fluoride, total suspended solids (TSS), ammonia, turbidity, pH,
chloride, and chronic toxicity.
The following modification has been included in the final permit:
• An updated description of the Unimin Schoolhouse Operation treatment
system as submitted by the permittee.
• The annual analytical monitoring for fluoride and chloride in Section B
Stormwater Monitoring Requirements, has been deleted, based on information
that fluoride and chloride are only added during the processing of the ore and
will not be found in mining activities.
• The effluent limitation of 0.10 ug/l for lindane has been modified to monthly
monitoring based on a more recent organochlorine pesticide analysis in March
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone]/FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

2004. The result of this scan was a value of below detection for lindane.
Although there was no detection in this sample, with the past hit for lindane
and the permittee's concern for the possibility for a hit in the future, DWQ
recommends influent and effluent monitoring be maintained. After twelve
months of sampling for this parameter, if all reported values are below
detection level, Unimin can submit a written request for re-evaluation of the
inclusion of the lindane monitoring.
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 a demand is made, this permit
shall be final and binding.
Please take notice that this permit is not transferable. The Division may require
modification 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, Coastal Area
Management Act,or any other Federal or Local governmental permits may be required.
If you have any questions or need additional information, please contact Ms.
Jacquelyn Nowell at telephone number(919)733-5083,extension 512.
Sincerely,
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek,P.E.
Attachments
cc: Asheville Regional Office/Water Quality Section
EPA Region IV/Attn.Roosevelt Childress
Aquatic Toxicology
NEVES File
Central Files

Permit NC0000361
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 provisions 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,
Unimin Corporation
is hereby authorized to discharge wastewater from a facility located at the
Schoolhouse Quartz Operation
off US Highway 19E
Avery County
to receiving waters designated as the North Toe River in the French Broad River Basin in
accordance with effluent limitations,monitoring requirements, and other conditions set forth
in Parts I,II, III, and IV hereof.
The permit shall become effective August 1,2004
This permit and the authorization to discharge shall expire at midnight on February 28,2006.
Signed this day June 23,2004
ORIGINAL SIGNED BY
Mark McIntire
Alan W.Klimek,P.E.,Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0000361 •
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility,whether for operation or discharge are hereby revoked,and as
of this issuance,any previously issued permit bearing this number is no longer effective.Therefore,the exclusive
authority to operate and discharge from this facility arises under the permit conditions,requirements,terms,and
provisions included herein.
Unimin Corporation
Schoolhouse Quartz Operation Wastewater Treatment Plant
is hereby authorized to:
1. Continue operation of a wastewater treatment plant for process wastewater from
mineral extraction consisting of:
• Non-fluoride waste sump with 3 influent slurry pumps;
• 80 foot diameter thickener
• Overflow tanks;
• Disk filter;
• Fluoride-bearing waste sump with 2 pumps;
• 60 foot diameter thickener;
• Five dewatering cyclones;
• Pan Filter;
• Recycle pump;
• Two 220 gallon flash mix units;
• Two 1280 gallon flocculation units,
• Two 2500 square foot lamellar flow plate separators;
• Lime,alum,and polymer addition;
• Mixing/reactor tanks;
• Multimedia filters;
• Filter press;
• Emergency pond,
• Recycle system; and
• All associated piping, equipment, and controls
The facility is local at the Schoolhouse Quartz Operation wastewater treatment plant,
off Highway 19 Eastilear Spruce Pine in Avery County.
2. Discharge wastewater through outfall 001 from said treatment works at the location
specified on the attached map into the North Toe River,which is classified C Trout
waters, in the French Broad River Basin.

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Facility Information
Facility
Latitude: 35°56'20" Sub-Basin: 04-03-06
Longitude. 81°59'45" Location
Quad#: Linville Falls (D11SW) A.:(.ii:::-in:,
Stream Class: C Trout
Unimin Corp.-Schoolhouse Quartz Operation
I Receiving Stream: North Toe River
North NC0000361
Permitted Flow: 2.16 MGD

Permit NC0000361 '
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 process wastewater from mineral extraction of ore
from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified
below:
EFFLUENT LIMITATIONS Monitoring Requirements
Parameter Monthly Average Daily Measurement Sam le Sample
Maximum Frequency Type Location'
Flow 2.16 MGD Continuous Recording Influent or Effluent
Total Fluoride 109.0 pounds/day 218.0 pounds/day Daily Composite Effluent,U, D
Total Suspended Solids 450.0 pounds/day 721.0 pounds/day Daily Composite Effluent,U,D
Settleable Solids Daily Grab Effluent
Turbidity2 Daily Grab Effluent,U, D
pH3 Daily Grab Effluent,U,D
Gamma BHC(Lindane) Monthly Grab Influent&Effluent
Chloride, Quarterly Composite Effluent
Chronic Toxicity5 Quarterly Composite Effluent
Notes:
1. U: upstream at the Kaolin Pumphouse. D: downstream at the Franklintown bridge.
Instream samples shall be grab samples collected 3/week.
2. This discharge shall not cause the turbidity of the receiving waters to exceed 10 NTU. If the
turbidity exceeds 10 NTU due to natural conditions,the discharge shall not cause any
increase in turbidity.
3. The pH shall not be less than 6.0 standard units nor greater than 10.0 standard units.
4. Chloride shall be monitored quarterly during the same months as toxicity testing.
5. Chronic Toxicity (Ceriodaphnia) Pass/Fail at 10%: February,May, August and November
[see A. (3)].
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0000361
A. (2) CHRONIC TOXICITY PERMIT LIMIT (Quarterly)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 10%.
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
February, May, August and November. 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: NC DENR / DWQ / 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.

Permit NC0000361 '
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.
A. (3) BIOCIDE CONDITION
There shall be no chromium,zinc or copper added to the treatment system except as pre-approved additives
to biocidal compounds.
The Permittee shall obtain approval from the Division's Aquatic Toxicology Unit prior to the use of any biocide(not
previously approved by the Division) in the effluent discharged under this permit. Approval for use of any biocide
not previously approved should be requested at least 90 days in advance of any planned usage.
Contact the Aquatic Toxicology Unit for detailed instructions on requesting approval of biocides:
NC DENR/DWQ/Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh,North Carolina 27699-1621
A. (4) WASTEWATER DIVERSION
Diversion or bypassing of untreated wastewater from the treatment facility is prohibited.
A. (5) SOLIDS DISPOSAL
Solids removed or resulting from the wastewater treatment process shall be contained and disposed of
in such a manner as to prevent any contamination of the surface waters of the,State.
A. (6) FLUORIDE REOPENER
This permit shall be modified,or revoked and reissued to incorporate new fluoride effluent limitations
in the event that acute or chronic bioassay testing or other studies results in a change in the North
Carolina Water Quality Standard for fluoride.
A. (7) PERMIT MODIFICATIONS
This permit shall be modified,or revoked and reissued to incorporate new limitations in the event that
production changes are requested or should any new fluoride using discharge request to locate on the
North Toe River.

Permit NC0000361
STORMWATER MONITORING, CONTROLS AND LIMITATIONS FOR PERMITTED DISCHARGES
SECTION B: FINAL LIMITATIONS AND CONTROLS FOR STORMWATER DISCHARGES
During the period beginning on the effective date of the permit and lasting until expiration,the
Permittee is authorized to discharge wastewater and stormwater associated with industrial activity.
Such discharges shall be controlled, limited and monitored as specified below.
1. Stormwater Pollution Prevention Plans
The Permittee shall develop a Stormwater Pollution Prevention Plan,herein after referred to as the
Plan. The Plan shall be considered public information in accordance with Part II E.10. of this permit.
The Plan shall include, at a minimum, the following items:
a. Site Plan:The site plan shall provide a description of the physical facility and the potential
pollutant sources which may be expected to contribute to contamination of regulated
stormwater discharges. The site plan shall contain the following:
(1) A general location map (USGS quadrangle map,or appropriately drafted equivalent
map),showing the facility's location in relation to transportation routes and surface
waters,and the name of the receiving water(s) to which the stormwater outfall(s)
discharges. If the discharge is to a municipal separate storm sewer system, the name of
the municipality and the ultimate receiving waters, and accurate latitude and longitude
of the point(s)of discharge must be shown.
(2) A narrative description of storage practices, loading and unloading activities, outdoor
process areas, dust or particulate generating or control processes, and waste disposal
practices.
(3) A site map (or series of maps)drawn to scale with the distance legend indicating
location of industrial activities(including storage of materials, disposal areas,process
areas,and loading and unloading areas), drainage structures,drainage areas for each
outfall and activities occurring in the drainage area,building locations and impervious
surfaces,the percentage of each drainage area that is impervious.For each outfall, a
narrative description of the potential pollutants which could be expected to be present in
the regulated stormwater discharge.
(4) A list of significant spills or leaks of pollutants that have occurred at the facility during
the 3 previous years and any corrective actions taken to mitigate spill impacts.
(5) Certification that the stormwater outfalls have been evaluated for the presence of non-
stormwater discharges. The certification statement will be signed in accordance with the
requirements found in Part II B.11.
b. Stormwater Management Plan: The stormwater management plan shall contain a narrative
description of the materials management practices employed which control or minimize the

Permit NC0O00361 '
exposure of significant materials to stormwater, including structural and non-structural
measures. The stormwater management plan, at a minimum, shall incorporate the following:
(1) A study addressing the technical and economic feasibility of changing the methods of
operations and/or storage practices to eliminate or reduce exposure of materials and
processes to stormwater. Wherever practicable the Permittee should consider covering
storage areas,material handling operations, manufacturing or fueling operations to
prevent materials exposure to stormwater. In areas where elimination of exposure is not
practicable, the stormwater management plan shall document the feasibility of diverting
the stormwater runoff away from areas of potential contamination.
(2) A schedule to provide secondary containment for bulk storage of liquid materials,
storage of Section 313 of Title III of the Superfund Amendments and Reauthorization
Act(SARA)water priority chemicals,or storage of hazardous materials to prevent leaks
and spills from contaminating stormwater runoff. If the secondary containment devices
are connected directly to stormwater conveyance systems, the connection shall be
controlled by manually activated valves or other similar devices [which shall be secured
with a locking mechanism] and any stormwater that accumulates in the containment
area shall be at a minimum visually observed prior to release of the accumulated
stormwater. Accumulated stormwater shall be released if found to be uncontaminated.
Records documenting the individual making the observation,the description of the
accumulated stormwater and the date and time of the release shall be kept for a period
of five years.
(3) A narrative description of Best Management Practices(BMPs)to be considered such as,
but not limited to, oil and grease separation, debris control, vegetative filter strips,
infiltration and stormwater detention or retention, where necessary. The need for
structural BMPs shall be based on the assessment of potential of sources contributing
significant quantities of pollutants to stormwater discharges and data collected through
monitoring of stormwater discharges.
(4) Inspection schedules of stormwater conveyances and controls and measures to be taken
to limit or prevent erosion associated with the stormwater systems.
c. Spill Prevention and Response Plan: The Spill Prevention and Response Plan shall incorporate
a risk assessment of potential pollutant sources based on a materials inventory of the facility.
Facility personnel(or team) responsible for implementing the plan shall be identified in the
plan. A responsible person shall be on-site at all times during facility operations that have the
potential to contaminate stormwater runoff through spills or exposure of materials associated
with the facility operations.
d. Preventative Maintenance and Good Housekeeping Program: A preventative maintenance
program shall be developed. The program shall document schedules of inspections and
maintenance activities of stormwater control systems, plant equipment and systems. Inspection

• Permit NC0000361
of material handling areas and regular cleaning schedules of these areas shall be incorporated
into the program.
e. Training schedules shall be developed and training provided at a minimum on an annual basis
on proper spill response and cleanup procedures and preventative maintenance activities for all
personnel involved in any of the facility's operations that have the potential to contaminate
stormwater runoff. Facility personnel(or team)responsible for implementing the training shall
be identified in the plan.
f. The Stormwater Pollution Prevention Plan shall identify a specific position(s)responsible for
the overall coordination, development,implementation, and revision to the Plan.
Responsibilities for all components of the Plan shall be documented and position(s) assignments
provided.
g. Plan Amendment: The Permittee shall amend the Plan whenever there is a change in design,
construction, operation, or maintenance which has a significant effect on the potential for the
discharge of pollutants via a point source to surface waters. The Stormwater Pollution
Prevention Plan shall be reviewed and updated on an annual basis.
The director may notify the Permittee when the Plan does not meet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the Permittee shall submit
a time schedule to the Director for modifying the Plan to meet minimum requirements. The
Permittee shall provide certification in writing(in accordance with Part II,Standard Conditions,
Section B.11.)to the Director that the changes have been made.
h. Facility Inspections: Inspections of the facility and all stormwater systems shall occur at a
minimum on a semiannual schedule,once in the fall (September-November)and once during
the spring(April-June). The inspection and any subsequent maintenance activities performed
shall be documented, recording date and time of inspection,individual(s)making the
inspection and a narrative description of the facility's stormwater control systems, plant
equipment and systems. Records of these inspections shall be incorporated into the Stormwater
Pollution Prevention Plan.
Visual monitoring as required in Part I,Section B.3.b. shall be performed in addition to facility
inspections.
i. Implementation: Implementation of the Plan shall include documentation of all monitoring,
measurements,inspections, maintenance activities and training provided to employees,
including the log of the sampling data.Activities taken to implement BMPs associated with the
industrial activities, including vehicle maintenance activities, must also be recorded. All
required documentation shall be kept on-site for a period of five years and made available to
the Director or his authorized representative immediately upon request.

•
Permit NC0000361
2. Minimum Monitoring and Reporting Requirements
Minimum monitoring and reporting requirements are as follows unless otherwise approved in writing
by the Director of the Division of Water Quality:
a. If a facility has multiple discharge locations with substantially identical stormwater discharges
that are required to be sampled, the Permittee may petition the Director for representative
outfall status. If it is established that the stormwater discharges are substantially identical and
the Permittee is granted representative outfall status, then sampling requirements may be
performed at a reduced number of outfalls.
b. Visual monitoring for color, odor, solids, foam, outfall staining,visible sheens and dry weather
flow shall be performed at all stormwater discharge outfall locations. All visual monitoring
shall be documented and records maintained with the Stormwater Pollution Prevention Plan.
The initial visual monitoring event shall be performed simultaneously with the first analytical
monitoring event and documentation of only this initial visual monitoring event shall be
submitted along with the required analytical monitoring submittal.
c. For purposes of the stormwater sampling required in this permit, all samples shall be collected
from a discharge resulting from a representative storm event(See definitions in Part III,
Standard Conditions). Failure to monitor storm events in accordance with the specified
frequency shall constitute a violation of this permit. If the stormwater runoff is controlled by a
detention pond, the following sampling requirements shall apply:
(1) If the detention pond detains the runoff generated by one inch of rainfall for 24 hours, visual
observations for color,foam, outfall staining,visible sheens and dry weather flow are required,
but analytical sampling shall not be required.
(2) If the detention pond discharges only in response to a storm event exceeding a 25-year,24-hour
storm (See Part II,Standard Conditions,Section A),the pond shall be considered a non-
discharging stormwater control system and not subject to NPDES requirements, unless the
discharge causes a violation of water quality standards.
d. Samples analyzed in accordance with the terms of this permit shall be submitted on forms
approved by the Director no later than January 31 for the previous year in which sampling was
required to be performed.
e. Analytical results from sampling during the final year of the permit term shall be submitted
with the permit renewal application.
f. This permit regulates stormwater discharges associated with industrial activity. Non-
stormwater discharges which shall be allowed in the stormwater conveyance system are:
(1) All other discharges that are authorized by an NPDES permit.

• Permit NC0000361
(2) Foundation drains, air-conditioner condensate without added chemicals,springs, waterline and
fire hydrant, water from footing drains, flows from riparian habits and wetlands, fire-fighting
training and fire system testing.
(3) Discharges resulting from fire-fighting.
If the storm event monitored and reported in accordance with this permit coincides with a non-
stormwater discharge,the Permittee shall separately monitor and report all parameters as
required under the non-stormwater portion of this permit and provide this information with the
stormwater discharge monitoring report.
3. STORMWATER MONITORING REQUIREMENTS
(a). Analytical Monitoring.
During the period beginning on the effective date of the permit and lasting until expiration,
the Permittee is authorized to discharge stormwater from process wastewater areas and
adjoining stormwater collection areas. Process wastewater shall not be discharged from
outfall 002. Stormwater discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT MONITORING REQUIREMENTS
LIMITATIONS
PARAMETER MonthlyDail Measurement Sample Typi Sample
Frequency Location
Average Maximum
Flow ** ** Effluent
Total Rainfall(inches) **
Event Duration(minutes) •
**
Total Suspended Residue(mg/L) Annual Grab Effluent
Settleable Solids(mill) Annual Grab Effluent
Turbidity(NTU) Annual Grab Effluent
pH(SU) Annual Grab Effluent
For each representative storm event the total precipitation, storm duration and total flow must
be monitored. Total flow shall be either; (a) measured continuously, (b) calculated based on
the amount of area draining to the outfall, the amount of built-upon (impervious) area and the
total amount of rainfall, or (c) estimated by the measurement of flow at 20-minute intervals
during the rain event.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0000361 •
(b).Visual Monitoring
Visual monitoring requires a qualitative visual inspection of each stormwater outfall,regardless
of representative outfall status, for the purpose of evaluating the effectiveness of the
Stormwater Pollution Prevention Plan and assessing new sources of stormwater pollution. No
analytical tests are required. Visual monitoring of stormwater outfalls does not need to be
performed during a representative storm event.
Monitoring
Stormwater Discharge Frequency) Type2 Monitoring Location3
Characteristics
Color Semi-annual Visual SDO
Odor Semi-annual Observation SDO
Clarity Semi-annual Visual SDO
Floating Solids Semi-annual Visual SDO
Suspended Solids Semi-annual Visual SDO
Foam Semi-annual Visual SDO
Oil Sheen Semi-annual Visual SDO
Other obvious indicators of Semi-annual Visual SDO
stormwater pollution
1 Frequency:The first visual monitoring event during the term of the permit must be
performed during the initial analytical monitoring event. All subsequent visual monitoring will
be performed twice per year,once in the spring and once in the fall.
2 Monitoring Type: Monitoring requires a qualitative observation of each stormwater outfall.
No analytical testing or sampling is required.
3 Sample Location: Stormwater Discharge Outfall(SDO).
SECTION C: SCHEDULE OF COMPLIANCE
1. The Permittee shall comply with stormwater monitoring requirements and controls specified
for stormwater discharges in accordance with the following schedule:
The Stormwater Pollution Prevention Plan shall be developed and implemented within 12
months of the effective date of this permit and updated thereafter on an annual basis.
Secondary containment shall be accomplished within 12 months of the effective date of this
permit.
2. The Permittee shall at all times provide the operation and maintenance necessary to operate the
permitted stormwater controls at optimum efficiency.

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0000361
Facility Information
Applicant/Facility Name: Unimin Corporation- Schoolhouse Quartz Operation Plant
Applicant Address: P.O. Box 588 Spruce Pine NC 28777
Facility Address: 107 Harris Mining Company Road, Highway 19E Spruce Pine NC 287
Permitted Flow 2.16 MGD
Type of Waste: Industrial
Facility/Permit Status: Renewal
Facility Classification Physical/Chemical Class II
County: Avery
Miscellaneous
Receiving Stream: North Toe River Regional Office: Asheville
Stream Classification: C Trout _ USGS Topo Quad: D11NW
303(d) Listed?: No Permit Writer: _ Jackie Nowell
Subbasin: 04-03-06 Date: 2/16/2004
Drainage Area (mi2): 96.5
Summer 7Q10 (cfs) 30 -.; „,
Winter 7Q10 (cfs): 39 46000
Average Flow (cfs): _ 165
IWC (%): 10% -'
Primary SIC Code: 1499(Mining)
SUMMARY OF FACILITY INFORMATION AND WASTELOAD ALLOCATION
Unimin Corporation is requesting a permit renewal for its Schoolhouse Quartz Operation Plant. The
Schoolhouse Quartz Operation Plant does mining,milling, and separation of Alaskite ore to produce
quartz,feldspar, and mica. The facility is permitted to discharge into the North Toe River,class C-
Trout waters,in French Broad River Basin. Outfall 001 discharges process water. Plant limits flow
to an average of 1500 gpm (2,160,000 MGD)
In January 2003, Unimin Corp. requested that the plant's Stormwater Permit COC NCG020112 be
combined with the NPDES permit NC0000361. Outfall 002 is an intermittent stormwater discharge.
Limits and monitoring requirements will be added to the NPDES discharge permit.
The existing wastewater treatment plant consists of:
• Dewatering cyclones;
• Lime and polymer feed systems;
• thickeners;
• disc filter;
• Alum,lime and polymer addition;
• pH adjustment;
• emergency pond;
• mix/reactor tanks;
• multimedia filter;
• filter press, and
• recycle and flow measurement
The facility adds lime, sulfuric acid, and sodium bicarbonate as needed for pH control. Also adds
alum, anionic and cathodic polymers as needed for flocculation. Other chemicals used in the process
are in HF, HC1, caustic, amine, petroleum sulfunate and fuel oil. Oil and grease are expected in
small amounts from leaks and drips from mobile equipment. HCl is used in the laboratory and
Research and Development facility.
Unirnin Corporation-Schoolhouse Quartz Operation Factsheet
NPDES Renewal
Page I.

The existing limits for the renewal permit are as follows:
Pollutant Mo. Avg. Da. Max.
Flow 2.16 MGD
Total Suspended 450 lbs/day 721 lbs/day
Residue
Total Fluoride 109 lbs/day 218 lbs/day
Settleable Solids Daily
monitoring
Turbidity Daily
monitoring
Chloride Quarterly
monitoring
pH 6-10 SU
Chronic Toxicity 10%
RECEIVING STREAM INFORMATION:
The North Toe River is not listed on North Carolina's 2002 303(d)list.
INSTREAM MONITORING:
Upstream: Upstream at least 50 feet
Downstream: Downstream at least 300 feet.
Parameters: Fluoride,Turbidity,pH
(see attached memo on North Toe Mines)
TOXICITY TEST RESULTS:
Quarterly Chronic P/F, 10%Ceriodaphnia test. FEB MAY AUG NOV
Facility's compliance with toxicity limit has been good overall. In 2001,there were consistent
problems with passing the toxicity test. FAILS were recorded in Feb 2001 and August 2001,however
all quarterly tests have been passed in 2002 and through November 2003.
Recommendation: Renewal of quarterly chronic test @ 10%
PRIORITY POLLUTANT ANALYSIS RESULTS:
The following parameters are noted in the application as present in the effluent.
Sulfate, Chloride,Fluoride,Aluminum,Calcium, Sodium and Oil& Grease
Results of pollutant scan for 001, sampled on 6/19/2001
Barium 0.057 mg/1 NC Std does not apply to C Trout water
Chloride 9 mg/1 NC Action level=230 mg/1;Allowable conc. =2291 mg/1
Fluoride 16 mg/1 NC Std= 1.8 mg/l; Allowable conc. = 17.9 mg/1(17929 ug/l)
Aluminum 2.5 mg/1 No NC Std,EPA Criteria=750 ug/l, Allowable conc.= 7.4 mg/1
(7470 ug/1)
Napthalene 6.4 mg/1 No NC Std;No EPA Criteria
alpha-BHC 0.14 ug/1 No NC Std,EPA Criteria=0.0049 ugh Human Health,Organisms
Allowable cont.=0.25 ug/1
Lindane(gamma-BHC)0.13 ugh NC Std=0.01 ugh; Allowable cont. =0.1 ug/1
The reported values for barium,chloride, aluminum and napthalene do not exceed the allowable
concentrations for those constituents.
Uni min t:'nrporation— Sehttolhouz,e Quartz Operation Factsheet.
NPDES IRene�val
I.,a..e 9

However,the one value for Fluoride is close to the allowable concentration. It should be noted that
the permit already contains a monthly average limit of 109 lbs/day(or 6.1 mg/I)for fluoride. The
daily maximum value is 218 lbs/day or 12 mg/1 and that is the value that was exceeded. There were
no recorded monthly permit violations for fluoride in 2001 for the Schoolhouse plant. The permit
already protects for fluoride exceedances and will be recorded as noncompliant. All Toxicity tests
have been passed since 2001 when the elevated values were recorded.
The one value for lindane slightly exceeds the allowable concentration of 0.1 ug/l. Will recommend
that a limit for lindane at 0.1 ugh be placed in the new permit.
Recommendation:A limit for lindane should be placed in the permit. If after twelve months of
sampling for this parameter,all values are below detection,Unimin can request that DWQ re-
evaluate the inclusion of the lindane limit.
COMPLIANCE REVIEW:
Facility has been in compliance with all permit limits consistently in 2001,2002,and 2003.
PROPOSED CHANGES:
• Recommend that a limit for lindane at 0.1 ug/1 be placed in the new permit based on
the value in the 2001 PPA.
• Recommend that stormwater limits be incorporated into this permit;
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: 03/24/2004
Permit Scheduled to Issue: 05/10/2004
Projected Effective Date of Permit: 06/01/2004
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please contact
Jackie Nowell at(919) 733-5083 ext. 512.
, i
NAM . DATE: /17/0t
I
Unirnin Corporation- Schoolhouse Quartz Operation Factsheet
NPDES Renewal
Page 3

DIVISION OF WATER QUALITY
Point Source Branch
NPDES Unit
August 22, 2003
MEMORANDUM
To: Madolyn Dominy
Marshall Hyatt
EPA Region IV
Through: Dave GoodrichV� 44From: Jacquelyn M. Nowell
'
Subject: North Toe River Mining Dischargers
French Broad River Basin
Mitchell County,North Carolina
Background
There are six feldspar and quartz mines discharging into the North Toe River in the
French Broad River basin (subbasin 040306). The facilities are listed here in order, from
upstream to downstream:
• Unimin- Schoolhouse Facility (NC0000361) —2.16 MGD
• Feldspar Mines (NC0000353) —3.5 MGD
• Unimin-Crystal Facility (NC0084620) —0.36 MGD
• K-T Feldspar Mines (NC0000400) — 1.73 MGD
• Unimin—Quartz Facility(NC0000175) —3.6 MGD
• Unimin —Red Hill Facility (NC0085839) —0.682 MGD
Please see the attached schematic that represents the mine locations on the North Toe
River. Most of these facilities have been discharging since the early 1980's. The
exception is the Red Hill Facility that started discharging in 1995 and is located
approximately 20 miles downstream of the other mines and is not relevant to this
discussion from the standpoint that no interaction occurs between this plant and any
other. Therefore, this discussion will only include the mines above the confluence of the
South Toe River. It should also be noted that the Unimin — Crystal Facility discharges
effluent into the Feldspar Mines facility. There is the possibility of a separate discharge
in the future; therefore the facility has received a fluoride allocation.
The primary area of concern is the discharge of fluoride from these facilities. The North
Carolina water quality standard for fluoride is 1.8 mg/l. The allowable fluoride loading
for the North Toe River was determined in 1986 and has been allocated to these mines as
a group instead of individual allocations. This approach of allocating the total fluoride
1

Unimin- Unimin-
Quartz School
N3.6 MGD A House
Unimin- ce V Quartz
Red Hill - v� 2.16 MGD
0.682
MGD19
o K-T Feldspar 1.73 MGD
NOrthT° North Toe River
m e Riv r
m
X
Unimin- Feldspar 3.5 MGD
Crystal
0.360 MGD
MINE DISCHARGES ON THE NORTH TOE RIVER

MINE DISCHARGES ON NORTH TOE RIVER
River Mile NPDES Permit number
41.5 X NC0000361- Unimin-Schoolhouse Quartz
33.8 ) . NC0000353- The Feldspar Corp.
NC0084620- Unimin-Crystal
31.4 HWY 19
29.2 X NC0000400- K-T Feldspar
28.6 X NC0000175- Unimin-Quartz
27.5 Ambient monitoring station
21 .6 X South Toe River junction
6.0 X NC0085839- Unimin-Red Hill

•
load to a section of the North Toe River is similar to other methods used by the Division,
including nutrient control strategies in the Neuse and Tar-Pamlico River basins. Similar
to a "bubble permit"(used in the Air Quality program), some discharges may cause
localized impacts. However, the overall goal of the allocation method is to protect water
quality while allowing some flexibility for the dischargers to maintain compliance. The
Division and EPA have approved this approach for 17 years.
The total pounds per day of fluoride allocated are 574. The permitted fluoride
allocations for each of the mines is as follows:
`1uoride Monthly Average Fluaride Daffy iviaximunr
actlitty Name (lbs/daY) (1b0c1ay
Unimin-Schoolhouse 109 218
Feldspar Mines 174 348
Unimin-Crystal 50 100
K-T Feldspar 132 264
Unimin-Quartz 109 436
These allocations for the mines have been assigned upon all past permit renewals. This
fluoride loading of 574 lbs/day is based on:
1) a summer 7Q10 flow of 45 cfs in the North Toe River just below Little Bear Creek,
2) the current water quality standard for fluoride of 1.8 mg/l, and
3) a background fluoride concentration of 0.05 mg/1.
The 1985 wasteflows for three of the quartz processing mines were used to develop the
fluoride loading:
1)Feldspar @ 1985 Qw = 3.50 MGD
2) KT Feldspar @ 1985 Qw = 2.02 MGD
3)Unimin-Quartz @ 1985 Qw = 4.32 MGD
9.84 MGD = 15.25 cfs
Fluoride loading = (45 cfs + 15.25 cfs)(1.8 mg/I)—(45 cfs)(0.05 mg/1)
= (60.25)(1.8)—2.25 cfs.mg/1
= 108.45— 2.25 = 106.2 cfs.mg/1
= 106.2 cfs.mg/1 * 5.39 =572 lbs/day — 574 lbs/day
(Assume the difference is attributable to rounding)
Water Quality Evaluation
There are no federal effluent guidelines for mines that discharge fluoride. The purpose of
this memorandum is to evaluate water quality as it relates to previous permit decisions
and propose a 2003 permit strategy.
•
2

.
The Division uses a weight of evidence approach when assessing water quality. That is,
all available data are reviewed and evaluated to determine the appropriateness of certain
actions. There are three categories of information in this case:
• Instream biological assessments
• Whole-effluent toxicity testing
• Instream chemical data
Instream biological data are the most directly reliable measurements of stream health and
are, therefore, given the greatest consideration. Whole-effluent toxicity testing also is
given a lot of weight during deliberations. It is not a direct measurement of stream
conditions, but it is a direct measurement of the interaction between wastewater and
species that inhabit the stream or river. The Division also considers comparison of
physical or chemical measurements to existing water quality standards. In the presence
of all three categories of information, contraventions of water quality standards, although
considered serious, are given the least amount of weight. The reason for this is that
comparisons to numeric criteria (which are based on whole-effluent toxicity testing) are
indirect measurements of the biota in the stream. All of this information is valuable, but
North Carolina chooses to make a comprehensive critical evaluation of all available data.
Use Support
There are no segments of the North Toe River listed on the North Carolina 2003 303(d)
impaired stream list. There are approximately 556 miles of the North Toe River that are
rated fully supporting designated uses including the river reaches receiving effluent from
these mines.
Instream Biological Assessment
The benthic macroinvertebrate data for the North Toe River below all the quartz mines
demonstrate good water quality. The most recent evaluation was in 1997 at State Road
1162 at Penland, Mitchell County. This is located just 0.5 miles downstream of the
Unimin-Quartz discharge. There has been improvement in the biological rating over the
years from a poor rating in August 1988 to a good-fair rating in 1989 and 1992.
Macroinvertebrate data for the most upstream station above the quartz mines, North Toe
River at US19E at Ingalls, Avery County, indicate a rating of excellent water quality as of
July 1997. The table below indicates North Toe River biological monitoring stations and
their biological ratings during the 10 year period between 1987 and 1997.
Biological Ratings
(allon location 1987 1988 1989_ 1992 1997
North Toe R.,US 19E Good Good Good Good Excellent
at Ingalls
North Toe R., Fair Poor Good Good Good
SRI 162, Penland —Fair -Fair
3

•
Bioclassification Use Support Rating
Excellent Fully Supporting
Good Fully Supporting
Good-Fair Fully Supporting
Fair Partially Supporting
Poor Not Supporting
Whole Effluent Toxicity Testing
All the quartz mines have quarterly whole effluent toxicity tests based on the potential for
toxic effects on the receiving stream. (Please note that Unimin-Crystal has a toxicity
limit, however because it discharges into the Feldspar Mines WWTP, they do not conduct
individual toxicity tests.) Since 1998, there have been 91 tests conducted by the five
quartz mines with a 93% passing rate. There have only been 6 failures of all the tests
conducted in the past four years. The majority of the failures occurred at the same
facility. The Unimin-Schoolhouse plant accounted for four of the six failures. The cause
of this toxicity is unknown. However, it should be noted that Unimin-Schoolhouse been
compliant since August 2001.
Number of Dumber of
Facility Name Toxicity Limit Toxicity Tests Failures
since 199$,
Unimin-Schoolhouse 10% 26 4
Feldspar Mines 11% 24 0
Unimin-Crystal 1.3% - -
K-T Feldspar 6% 19 1
Unimin-Quartz 11% 22 1
Instream Chemical Monitoring by Facilities
All the facilities conduct instream self-monitoring for turbidity, fluoride and pH, both
upstream and downstream of their outfalls. This is to help determine the effect of the
discharges on the water quality in the North Toe River. Instream fluoride data from the
time period of January 1999 to August 2002 were reviewed for the preceding five
facilities. During this time period, the monthly averages for instream fluoride have
shown no exceedances of the water quality standard either upstream or downstream of the
Unimin-Schoolhouse and Feldspar facilities. The average upstream value for the
Schoolhouse facility was 0.15 mg/1 and the average downstream value was 0.26 mg/1.
The average upstream value for the Feldspar facility was 1.29 mg/I and the average
downstream value was 1.2 mg/1.
There were a total of 327 fluoride observations in the stream among these five
dischargers with 30 values >1.8 mg/I. This was 9% of the total monthly observations
with 91% within the standard. Most of the instream fluoride values > 1.8 mg/1 standard
occurred upstream and downstream of the K-T Feldspar discharge. This, more than
likely, occurred as a result of the proximity of the Feldspar Mines discharge which is only
0.6 miles above the K-T Feldspar Mines discharge. The breakdown of instream
observations of values > 1.8 mg/I are:
4

Number of
Monitoring Locations Number of Obs. values> 1.8 mg/I %
Above Unimin Schoolhouse 43 0 0
Franklintown Bridge 43 0 0
Above Feldspar 37 0 0
Below Feldspar 38 0 0
Above K-T Feldspar 41 7 17%
Below K-T Feldspar 42 15 36%
Above Unimin-Quartz 42 5 12%
SR 1162 at Penland Bridge 42 3 7%
327 30 9%
Ambient Monitoring Data
The Division conducts ambient monitoring in the North Toe River at two sites. The first
station is at US Highway 19E near Ingalls, NC nearly 1 mile above the Unimin-
Schoolhouse Quartz mine. The second station is at State Road 1162 at Penland
approximately 0.8 miles below the Unimin-Quartz outfall. These stations are above the
most upstream mine and below the most downstream mine. Since January 1999, there
have been 30 samples of fluoride taken. There have been only 3 values > 1.8 mg/1 and
these occurred in February 2000, February 2001 and June 2001. This indicates that 90%
of the ambient samples in the past 4 years have been < 1.8 mg/1.
Discussion of Water Quality Information
An overall view of water quality in this segment of the North Toe River indicates that the
biological assessment shows improving water quality conditions. The toxicity data
indicates that the discharges are not toxic or causing toxicity instream. There is greater
than 90% compliance with the toxicity limits. Self monitoring instream data conducted
by the discharges does demonstrate that some instream fluoride standard exceedances
occur. The majority are below K-T Feldspar, and it is concluded that these occur because
the two dischargers are in such close proximity and North Carolina (with EPA approval)
has used a"bubble"permitting approach, which allows some localized impacts by design.
However, the average instream fluoride values collected between January 1999 and
August 2002 show that upstream and downstream of all the dischargers, the instream
fluoride average is below the standard of 1.8 mg/I.
DWO Recommendation
The Division recommends that the allocations for the North Toe River dischargers remain
the same. Water quality data show that there is no impairment in the stream, there have
been minimal toxicity problems, and the numeric water quality standard is being
protected>90% of the time. It recommended that all the feldspar and quartz mines have
their permits reissued at the existing fluoride allocations.
Attachments
cc: Forrest Westall
Mike Parker
Matt Matthews
NPDES Files: NC0000175 NC0000353 NC0000361
NC0000400 NC0084620 NC0085839
5

NC draftrationaleforfluoridemines
.
Subject: NC draft rationale for fluoride mines
Date: Thu, 25 Sep 2003 11:32:29 -0400
From: [e-mail]
To:[e-mail], [e-mail]
CC: [e-mail],[e-mail]
sorry for the delay in getting back to you. Chris Decker and I looked
at it. Based on the data provided and rationale, we can agree with your
conclusion that there is no need to change permit limits at this time.
1 of 1 12/10/03 5:29 PM

Ja\ZEo
A UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Yw REGION 4
o Q ATLANTA FEDERAL CENTER
61 FORSYTH STREET
+T,<PROZ�G� ATLANTA, GEORGIA 30303-8960
APR 0 1 2004
Ms. Jackie Nowell
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJ: Draft NPDES Permit
Unimin - Schoolhouse Quartz Plant, Permit No. NC0000361
Dear Ms. Nowell:
In accordance with the EPA/NCDENR NPDES MOA, we have completed review of the draft
permit specified above and we have no comments or objections to its conditions. We request that we
be afforded an additional review opportunity only if significant changes are made to the draft permit
prior to issuance or if significant comments objecting to the draft permit are received. Otherwise,
please send us one copy of the final permit when issued.
If you have any questions,please call me at [phone].
Sincerely,
Marshall Hyatt,Environmental Scientist
Permits, Grants, and Technical Assistance Branch
Water Management Division
APR 6 2003
Internet Address(URL)• http://www.epa.gov
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FROM UNIMIN (THU)MAY 20 2004 13 :48/ST. 13 :47/No. 6804295449 P 1
Unimin Corporation
Crystal Facility U N I M I N 1.11111
Tel:[phone]
Fax: [phone]
Fax
To: Jackie Nowell From: Jeffrey S. Ferguson
Fax: [phone] Pages: 1
Phones Date: 5120/04
Ra: Schoolhouse Facility Waste Treatment CC:
❑ Urgent 0 Po,Review O Please Comment ❑ Please Reply 0 Please Recycle
As per our telephone conversation yesterday, please note the following proposal for the description of
the wastewater treatment plant located at Unirnin Corporation's Schoolhouse Quartz Facility.
Non-fluoride waste sump with 3 influent slurry pumps;
80 foot diameter thickener;
overflow tanks;
disk filter;
Fluoride-bearing waste sump with 2 pumps;
60 foot diameter thickener;
five dewatenng cyclones;
pan filter;
two 220 gallon flash mix units;
two 1280 gallon flocculation units;
two 2500 square foot lamellar-flow plate separators;
lime,alum,and polymer additions;
mixing/reactor tanks;
multimedia filters;
filter press;
emergency pond;
recycle system;and
all associated pumps,holding tanks,piping,etc.
It appears that the additional thickener we were discussing was actually an identical flash mix unit,
flocculation unit,and lamellar flow plate separator that were installed in 2001. Please note there are
numerous pumps,surge tanks,mixing tanks,etc.located in the wastewater treatment plant. I hope this
helps clarify the description of the treatment plant.

I ' Environmental Affairs Department
Unimin Corporation
136 Crystal Drive•Spruce Pine,NC 28777
(PHONE)828/766-6081•(FAX)828/765-4755 --- — - - l
O
[1,-1)1 April 20,2004
u APR 2 1 2004
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Ms.Jackie Nowell
NCDENR- Division of Water Quality
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
Subject: Draft NPDES Permit NC0000361
Unimin Corporation's Schoolhouse Quartz Facility
Dear Ms. Nowell:
As per our recent telephone conversations, please note the following comments for
the Draft NPDES Permit issued to Unimin Corporation's Schoolhouse Quartz Facility dated
March 17, 2004.
First, the permit contains a requirement to sample lindane twice monthly due to hits
shown on the Priority Pollutant Analysis (PPA) performed June 19, 2001. Per your request,
Unimin personnel ran two Organo Chlorine Pesticides Analyses on the effluent water as well
as the intake water from the North Toe River (copies attached). The results showed none
detected at either location, however there was no rainfall in the area for two days prior to the
sample collection date of March 23, 2004. Unimin's Quartz/Feldspar Facility, a few miles
downstream, showed hits for few pesticides on a PPA performed February 19, 2004 while
there was rainfall in the area for both days prior to the sample collection date. We believe
that the pesticides are due to stormwater runoff from the numerous Christmas tree farms
located upstream in both Avery& Mitchell counties. In addition, I have personally reviewed
all MSDS sheets at both facilities and found only two types of wasp & hornet killer that
contain pesticides which are rarely used. The pesticides listed in these two MSDS sheets
include Piperonyl butoxide, Tetramethrin, and d-phenolthrin, all of which are non-
hazardous. This further concurs that the pesticides found in the process water are coming
from the intake in the North Toe River. Upon contacting Progress Energy (previously
CP&L), only herbicides are sprayed on Unimin property. Furthermore, my research has
shown that in 1999, lindane accounted for 22% of all pesticides used on Christmas tree
farms in North Carolina. Lindane was taken off the market in 1999, however some tree
farmers continued using this pesticide. Lindane is not contained in any pesticide except the
label "lindane". According to one tree farmer I have spoken with, he stated that when
previously using lindane he only had to spray every three years and now he must spray every
year. Therefore, these pesticides must have a long life in the environment and can easily be
contained in the stormwater reporting to the North Toe River. Per my discussion with you

• I.
Ms.Jackie Nowell
April 20,2004
Page 2
on April 13, 2004 we are performing another Organo Chlorine Pesticide Analysis at both
facilities' intake and effluent water after rainfall has occurred for the previous two days. I
will forward the results of the analyses to you once received. Hopefully the results will show
hits for the pesticides in question and will further concur that the pesticides are contained in
the river and pulled into our process. Thus for the reasons above we do not feel that
sampling Lindane or any other pesticides are warranted.
Secondly, there is a new requirement to sample Fluoride and Chloride from
Stormwater Outfall 002. This is a new requirement that Unimin feels is unnecessary due to
the fact that Chlorides and Fluorides are only added during the processing of the ore and
will not be found in mining activities. We request this requirement be removed unless it is to
be a standard requirement for all mining activities in North Carolina.
Third, Stormwater Outfall 002 is the only Outfall listed in the permit. Please note
that there are numerous Stormwater Outfalls located at this facility as well as mine
dewatering.
Finally, the waste treatment plant description contained in item 1 in the Supplement
to Permit Cover Sheet does not contain many aspects of the waste treatment plant
Thank you for your help with this matter. If you have any questions or require
further information,please do not hesitate to contact me at [phone].
Sincerely,
4W/9/77,".
Jeffrey S. Ferguson,P. E.
Environmental Engineer
UNIMIN CORPORATION
c: EA Files;Carl Horvat Steve Taylor

NC00Q0361
Subject: NC0000361
Date: Mon, 30 Dec 2002 14:40:44 -0600
From: Kevin Bowden<[e-mail]>
To: Jackie Nowell<[e-mail]>
Hey Jackie,
Got your voice mail message concerning IInimin, School House Mine
I looked through my notes and I couldn't find any information why
the facility failed 4 of it's last 26 toxicity tests. Likewise, I
have no information on any actions taken to address the tox
violations.
Hope your Holidays were safe and enjoyable. kevin.
1 of 1 1/6/03 11:14 AM

PUBLIC NOTICE f
,
STATE OF ` r I !b 'lr� �i !f 1�t !� 1
NORTH CAROLINA f t . . .. f
ENVIRONMENTAL !I ; , .� i
MANAGEMENT
COMMISSION/
NPDES UNIT
AFFIDAVIT OF PUBLICA N 2004
1617 MAIL
SERVICE CENTER
RALEIGH NC 27699-1617
NOTIFICATION OF
INTENT TO ISSUE A
NPDES WASTEWATER
PERMIT
On the basis of thorough BUNCOMBE COUNTY
staff review and applica-
tion of NC General Statute SS.
143.21, Public taw 92-500
and mer lawfulstone NORTH CAROLINA
dards,,and regulations,the
North Carolina Environ-
mental Management
Commission proposes tC
Dischargeissua Nationalemi Pollutant Before the undersigned, a NotaryPublic of said
limination g
System (NPDES) waste-
water discharge permit to County and State, duly commissioned, qualified and
the person(s) listed below
effective 45 days from the authorized by law to administer oaths, personally
Publish date of this notice.
Written comments regard- appeared Darryl Rhymes, who, being first duly
Ing the proposed permit
will be accepted until 30 sworn, deposes and says: that he is the Legal
ay °se il"teof motAiaBilling Clerk of The Asheville Citizen-Times,
ments received prior to
that date are considered in
The final determinations engaged in publication of a newspaper known as
regarding
permit. The the Director The Asheville Citizen-Times, published, issued,
the NC Division of Water
Qualitymay decide to hold and entered as second class mail in the City of
a public meeting for the
proposed permit should Asheville, in said County and State; that he is
the Division receive a sig-
nificant degree of public
interest. authorized to make this affidavit and sworn
Copies of the draft permit statement; that the notice or other legal
and other supporting in-
formation on file used to advertisement, a true copy of which is attached
determine conditions pre-
sent in draft permitarehereto, was published in The Asheville Citizen-
andavailable upon request
payment of the costs
of reproduction. Mail Times on the following date: March 25, 2004. And
comments=liar requests
for information to the NC that the said newspaper in which said notice, paper,
Division of Water Quality
call . Vat adores document or legal advertisement were published
call nits. votary Stephens
at(919)733.6083,extension
520. Please include the were, at the time of each and every publication, a
NPDES permit number
(attached) in any come newspaper meeting all of the requirements and
munication Interested
persons may also visit the
Division of Water Qualify qualifications of Section 1-597 of the General
Raleigh,51
N
f Salisbury604143street.- Statues of North Carolina and was a qualified
tween NC 276041148 be-
tt �in-
and 5:00mo reof view newspaper within the meaning of Section 1-597 of
formation on file.
NPDES Permit Number the General Statues of North Carolina.
NC000036L Unimin Corpo-
ration - Schoolhouse
Quartz Plant, Avery
County has applied for re Signed this 29th day of Marc 2004
newel of its permit dis-
charging to the North Toe i(jeliec7
River in the French Broad /
River Basin. Currently
fluoride is water quality
limited. This discharge JJ
May affect future duped- (3ignature of person i ,king affidavit)
lions in this portion of the
receiving stream.`
Progress Energy Caroli-
nas, Incorporated, Sworn to and subscribed before me the 29th day of
Ple Steam EDrtrk
ive March 2004
Plant 200 CP&L Drive,
Arden, NC 28704, has ap-
plied for a modification of
its NPDES permit
(N00000396) discharging
Treated industrial Waste +++++p�n�pr�r
water toin the French Broad _ +p+ 30YE. yi
River in the French Broad n __�++
River Basin.The NPDES t Pr�I \�{t` 1,_
Permit is being modified to i �� J, .
include the discharge of /'�%�ar.. �'� J Q • • -�/ '55 TI s
treated flue gas desulfun-
zation wastewater. Mer- if (Notary 'ubfic)
it,d. TIs wades discharge
tial My Commission expires the 3rd day of§- • ei * E—
f This discharge mtay r�:'
future discharges in
th s portion of the river ba 2008. �G PUBLIC I
sin. a
fiedairr ,, • %CMr 'Q Cb
't to

•
- L
SOC PRIORITY PROJECT: Yes No XX
IF YES, SOC NUMBER
TO: PERMITS AND ENGINEERING UNIT a '�
WATER QUALITY SECTION
ATTENTION: Charles Weaver N
DATE: August 13, 2001 11
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Avery
PERMIT NUMBER NC0000361
PART I - GENERAL INFORMATION
1 . Facility and Address: Unimin Corporation-Schoolhouse Quartz
Operation
Mailing: Post Office Box 588
Spruce Pine, North Carolina 28777
2 . Date of Investigation: May 10, 2001
3. Report Prepared By: Michael R. Parker
Environmental Chemist
4 . Persons Contacted and Telephone Number: Steve Taylor
828-765-4251
5. Directions to Site: From the intersection of U. S.
Highway 19E and North Carolina Secondary Road 1189,
travel east on NCSR 1189 0. 1 mile to the Unimin
Corporation property. The wastewater treatment
facility is located to the right of the manufacturing
plant.
6. Discharge Point(s) , List for all discharge points:
Latitude: 35° 56 ' 22" Longitude: 81° 59 ' 45"
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
U.S.G.S. Quad No. D11NW U.S.G.S. Quad Name Linville Falls, N. C.

7 . Site size and expansion area consistent with application?
X Yes No If No, explain:
8. Topography (relationship to flood plain included) : Treatment plant
not subject to flooding.
9. Location of nearest dwelling: Greater than 500 feet.
10 . Receiving stream or affected surface waters: North Toe River
a. Classification: C-trout
b. River Basin and Subbasin No. :040306
c. Describe receiving stream features and pertinent downstream
uses: fishing, wading, canoeing, industrial water supply,
irrigation.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . a. Volume of wastewater to be permitted 2 . 16 MGD (Ultimate
Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? 2 . 16 MGD
c. Actual treatment capacity of the current facility (current
design capacity 2 . 16 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
March 23, 2001 .
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Non-fluoride
waste sump with 3 influent slurry pumps (1750 gpm) each; lime
addition; 80 ft . diameter thickener (0 . 78 gpm/ft2) polymer
addition; overflow tank; overflow pump (3400 gpm) to non-
fluoride recycle tank (450, 000 gallons) ; effluent from non-
fluoride waste stream to be routed to in-plant uses,
emergency pond, or to final effluent pond; disc filter;
fluoride bearing wastewater, sump with 2 (2330 gpm) ; 5
dewatering cyclones; and recycle pump also, a new 220 gallon
flash mix unit a 1280 gallon flocculation unit and 2, 500 sq.
ft. lamellar flow plate separator and associated piping,
equipment and controls .

f. Please provide a description of proposed wastewater treatment
facilities: NA
g. Possible toxic impacts to surface waters: None anticipated.
h. Pretreatment Program (POTWs only) :NA
in development approved
should be required not needed
2 . Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DWQ
Permit Number
Residuals Contractor
Telephone Number
b. Residuals stabilization: PSRP PFRP OTHER
C. Landfill: Tailings will be disposed of on site in old mined
areas .
d. Other disposal/utilization scheme (Specify) :
3 . Treatment plant classification (attach completed rating sheet) :
Physical/Chemical Class II
4. SIC Codes (s) : 3952
Primary 41 Secondary
Main Treatment Unit Code: 51102
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only) ? NA
2 . Special monitoring or limitations (including toxicity) requests:
3. Important SOC, JOC, or Compliance Schedule dates: (Please
indicate)
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4 . Alternative Analysis Evaluation: Has the facility evaluated all
of the non-discharge options available. Please provide regional

perspective for each option evaluated. No other treatment options
are known at this time.
Spray Irrigation:
Connection to Regional Sewer System:
Subsurface:
Other disposal options:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS -
Unimin Corporation has requested renewal of NPDES
Permit NO. NC0000361 for the continued discharge of
industrial process wastewater from the production of
quartz at their Avery County plant .
There are no effluent guidelines for this industry and
the effluent limits were developed using production and
process information and the North Carolina Water
Quality Standard for fluoride of 1 . 8 mg/i . It has been
determined that there is a maximum assimilative
capacity of 574 LBS/day of fluoride in the North Toe
River at the mouth of Little Bear Creek, which is the
most downstream point in the North Toe River that
fluoride is being discharged. The 574 LBS/day of
fluoride is divided between four other companies,
Unimin Corporation-Crystal , K-T Feldspar Corporation,
The Feldspar Corporation and Unimin Corporation-Quartz
which have similar industrial processes and wastewater
characteristics . Each company discharges or proposes
to discharge fluorides to the North Toe River. All of
the permits for these companies are interdependent on
each other because the total assimilative capacity of
the fluoride is allocated between these five industries
and all of the permits should be issued at the same
time .
Based on monitoring data the facility is operating in
compliance with NPDES Permit limits . It is recommended
that the permit be issued for five years with the
existing limits and monitoring requirements. Stormwater
requirements should also be included in the permit.
71- 412-E-1°-
.ture of Repo Preparer
."ter si Reg.:nal Supervisor
D
Dat-

TOXICANT ANALYSIS
Facility Name Unimin-Schoolhouse am(
NPDES# NC0000361 fano
Qw(MGD) 2.16
7Q10s(cfs) 30
!WC(%) 10.04
Rec'ving Stream North Toe River
Stream Class C Trout
FINAL RESULTS
Chloride
Max. Pred Cw 9000 ug/I
Allowable Cw 2290931.9 ug/I
Max.Value 9000
Fluoride
Max. Pred Cw 16000 ug/I
Allowable Cw 17929.0 ug/I
Max.Value 16000
alpha BHC
Max. Pred Cw 0.14 ug/I 702 /65-d L I : - „,
Allowable Cw L�•Z5 ug/I t���•�I It/ `
Max.Value 0.14
Aluminum
Max. Pred Cw 2500 ug/1
Allowable Cw 7470.4 ugh
Max.Value 2500
Barium
Max. Pred Cw 57 ug/I
Allowable Cw 9960.6 ugh
Max.Value 57
Lindane
Max. Pred Cw 0.13 ugh
Allowable Cw 0.1 ug/I
Max.Value 0.13
2/6/2004

Whole Effluent Toxicity Testing Self-Monitoring Summary November 17,2003
FACILITY REQUIREMENT YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC •
Tyson Foods Inc-Ilarmony Division chr lin:1.8% 1999 5 1 — — >7 2 — — >7.2 — — >7.2 — —
NC0005 126/00 1 Begin10/1/1999 Frequency Q Jan Apr Jul Oct + NonComp:Single 2000 Pass — — Pass — — Pass — — NR/Pass — —
County,lredell Region:MRO Subbasin:YADO6 2001 Pass — — Pass — — Pass — — Pass — —
PF: 0.5 Special 2002 Pass — — Pass — — Pass — — Pass — —
7Q10:43 IWC(%)1.8 2003 Pass — — Pass — — Pass — —
UNC-Chapel Hill Power Plant 24hr ac monit epic fthd(grab) 1999 Pass — — Pass — — Pass — — Fail 56 1 56 1
N00025305/001 Begin:9/1/2001 Frequency 50WD/A NonComp: 2000 Fail >100 >100 NR/Fall 74.8 56.1,5610 Pass — — Pass — —
County:Orange Region:RRO Subbasin:CPF06 2001 Fail <15 >90 H H H H H H H H H
PF: 0.048 Special 2002 H H H H H — H H H H H H
7Q1U:0.0 IWC(%)100 2003 H H H H H H — H H
llnimia Corp-Mica Operations(Dal) chr Iim:10% 1999 — Pass — — Late Pass — Pass — — Pass —
NCOW0361/(101 Begin:3/1/1997 Frequency Q P/F + Feb May Aug Nov + NonComp:Single 2000 — Pass — — Pass — — Pass — — Pass —
County.Avery Region:ARO Subbasin:FRB06 2001 — Fad >2015) 12.25 Pass — — Fail >20 >20 Pass —
PF. 2.16 Special 2002 — late Pass — Pass — — Pass — — Pass —
7Q10:30 IWC(%)!p 2003 — Pass — — Pass — — Pass —
Unimin Corp. chr hm:11% 9 1999 Pass — — Pass — — Pass — — Pass — —
NC0000175/001 Begin:3/1/1997 Frequency Q P/F + Jan Apr Jul Oct + NonComp:Single 2000 Fad 26 3 >40 Pass — — NR/Pass — — Pass — —
County:Mitchell Region:ARO Subbasin:FRB06 2001 Pass — — Pass — — Pass — — Pass — —
PF: 3.61 Special 2002 Pass — — Pass — — Pass — — Fail 044 >44
7Q10:45.0 IWC(%)J I 2003 Pass — — Fail <5 5 <5.5,6.6.>44 Pass — —
Unimin Corp.Red Hill Plant chr lint:1.2% 1999 Pass — — Pass — — Pass — — Pass — —
NCl/0E5839/001 Begin:2/1/1997 Frequency Q P/F + Jan Apr Jul Oct NonComp:Single 2000 Pass — — Pass — — Pass — — Pass — —
County:Mitchell Region:ARO Subbasin:FRB06 2001 Pass — — Pass — — Pass — — NR/Pass — —
PF:0.682 Special 2002 Pass — — Pass — — Pass — — Pass — —
7Q10:90.7 IWC(%)J.2 2003 Pass — — Pass — — Pass — — Pass
Unimin Corp.-Crystal Operation chr lint:1.3% 1999 N — — N — — N — — N — —
NC0084620/001 Begin:5/1/1997 Frequency Q P/F + Jan Apr Jul Oct * NonComp:Single 2000 N — — N — — N — — N — —
County:Mitchell Region:ARO Subbasin:FRB06 2001 N — — N — — N — — N — —
PF: 0.36 Special 2002 N — — N — — N — — N — —
7Q10.41 IWC(%11.3 2003 N — — N — — N — —
Union County WWTP#2 chr Iim:90% 1999 — Pass — — Pass — — Pass — — Pass —
NC0069841/00t Begin:4/1/2000 Frequency Q Fcb May Aug Nov + NonComp:Singk 2000 — Pass — — NR/Pass — — Pass — — Pass —
County'Union Region:MRO Subbasin:YAD14 2001 — Pass — — Pass — — Pass — — Pass —
PF: 1.9 Special 2002 — Pass — — Pass — — Pass — — Pass —
7Q10:0.0 IWC(%)100 2003 — Pass — — Pass — — Pass —
Union County-Six Mile Creek chr Iim:90% 1999 — Pass — — Pass — — H — — H —
NC0066559/WI Begin:12/1/1996 Frequency Q P/F + Feb May Aug Nov NonComp:Single 2000 — H — — H — — H — — H —
County:Union Region:MRO Subbasin:CTB38 2001 — H — — H — — H — — H —
PF: I.0 Special 2002 — H — — H — — H — — H —
7010:0.0 IWC(%)J00 2003 — H — — H — — H —
Union County-Twelve Mile Creek WWTP chr Iim:90% 1999 — Pass — — Pass — — Pass — — Pass —
NC0085359/00I Begin:I/1/2003 Frequency Q Feb May Aug Nov + NonComp.Single 2000 — Pass — — NR/Pass — — Pass — — Pass —
County:Union Region:MRO Subbasin:CTB38 2001 — Pass — — Pass — — Pass — — Pass —
PF: 2.5 Special 2002 — Fail 671 >100 Pass — — Pass — — Pass —
7Q10:0.0 IWC(%)100 2003 — Pass — — Pass — — Pass —
United Cheml-Con chr lint:0.75% 1999 Pass — — Pass — — NR/Pass — — Pass — —
NC0U00019/001 Begin:4/1/2001 Frequency Q Jan Apr Jul Oct + NonComp:Single 2000 Pass — — Pass — — Pass — — Pass — —
County:Ashe Region:WSRO Subbasin:NEWU2 2001 Pass — — Pass — — Pass — — Pass — —
PF:0.2 Special 2002 Pass — — Pass — — Pass — — Pass — —
7Q10:41.0 IWC(%)0.75 2003 Pass — — Pass — — Pass — —
Unocal Corp-Rhom and Huts Facility chr lint:90% 1999 Pass — — Pass — — Pass — — Pass — —
NC0085057/0(lI Begin:l1/1/2002 Frequency Q Jan Apr Jul Oct + NonComp:Single 2000 Pass — — Pass — — Pass — — Pass — —
County:Mecklenburg Region:MRO Subbasin:CTB34 2001 Pass — — Fail <45 97 5 Pass — — Pass — —
PF: 0.0432 Special 2002 Fail >100 >100 Pass — — Pass — — Pass — —
7Q10.0.0 IWC(%)100 2003 Pass — — Pass — — Pass — —
V Pre 1999 Data Available
LEGEND:
PERM=Permit Requirement LET=Administrative Letter•Target Frequency=Monitoring frequency:Q-Quarterly;M-Monthly;BM-Bimonthly;SA-Semiannually;A-Annually:OW D-Only when discharging;D•Discontinued monitoring requirement
Begin=Fast month required 7010=Receiving stream low flow criterion(cfs +=quarterly monitoring increases to monthly upon failure or N Months that testing must occur•es.Jan,Apr,Jul,Oct NonComp=Current Compliance Requirement
PF-Permitted flow(MGD) IWC%=1nstream waste concentrati P/F=Pass/Fail test AC=Acute CHR=Chronic
Data Notation:f-Fathead Minnow;•-Ceriodaphnia sp.;my-Mysid shrimp;ChV•Chronic value;P-Mortality of stated percentage al highest concentration;at•Performed by DWQ Aquatic Ton Unit;bt-Bad test
?galling Natation;•••=Data eel requited;NR-Not repute Facility Activity Status:I•Inactive,N•Newly lssued(To construct);H•Active but not discharging;t•More data available for month in question;• =ORC signature needed
44

URhtflIR Environmental Affairs Department
Unimin Corporation
136 Crystal Drive • Spruce Pine,NC 28777
(PHONE)828/766-6081•(FAX)828/765-4755
June 26 2001
CERTIFIED MAIL a iv o F3D flOS ,a���a
RETURN RECEIPT REQUESTED
• 101)7
Ms. Valery Stephens
NCDENR - Division of Water Quality
Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: NPDES Renewal Requests for Unimin Corporation - Crystal,
Quartz/Feldspar, Red Hill, and Schoolhouse Quartz Facilities
NPDES Permit Nos. NC0084620, NC0000175, NC0085839, and
NC0000361
Dear Ms. Stephens:
Please accept this letter as a request for renewal of the following NPDES Permits:
Unimin Corporation - Crystal Facility NPDES Permit No. NC0084620
Unimin Corporation - Quartz/Feldspar Facility NPDES No. NC0000175
Unimin Corporation - Red Hill Facility NPDES No. NC0085839, and
Unimin Corporation - Schoolhouse Quartz Facility NPDES No. NC0000361
Enclosed please find one signed original and two copies of the Standard Form C for
each facility. It is my understanding that there are no fees associated with the renewal
requests.
Please note that portions of the applications have been stamped Confidential.
Unimin Corporation is requesting that this information be treated as confidential and
thereby protected from public disclosure.
Unimin believes that such information if made public, would divulge technology,
methods and processes entitled to protection as trade secrets of Unimin Corporation.
Accordingly, we are requesting confidentiality of this information under State Statute 143-
215.3.

Ms. Valery Stephens
June 26, 2001
Page 2
In support of this request, Unimin Corporation herein avers:
A. The production of high purity quartz is a highly competitive industry in which
market position is very much dependent on possession of the latest technology and
process development.
B. The processes and technology associated with Unimin's production of high purity
quartz have been consistently treated by Unimin in its operating policies,
procedures and practices as proprietary and confidential trade secrets.
C. Unimin believes that such processes and technology are in its sole possession and
are not generally available to Unimin's competitors or the public.
D. Such confidential processes and technology which have been developed at great
time and expense to Unimin are the property of Unimin and represent a great value
and competitive advantage to its market position and are an integral part of
Unimin's continuous quartz production operation.
E. The unprotected divulgence of such confidential information would result in an
irreparable harm to the competitive position of Unimin Corporation in this
market.
If you have any questions regarding this matter or require further information,
please do not hesitate to contact me at [phone].
Sincerely,
Jeffrey S. Fe on
Environmental Engineer
UNIMIN CORPORATION
c: Karl Kuchta,Carl Horvat,Bruce Perkins,Sandy Phillips,Bill Shaker,Mitch Snyderman,C.F.Stover
(cover letter), Steve Taylor, Steve Westmoreland

NPDES Application Form - Standard Form C
Major Manufacturing or Commercial Facilities
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
SECTION I. APPLICATION AND FACILITY DESCRIPTION
Unless otherwise specified on this form all gems are to be completed. If an it is not appicable indicate NA'.
1. Applicant and facility producing discharge
This applies to the person,agency,firm,municipality,or any other entity that owns or is responsible for the permitted facility. This may or may
not be the same name as the facility or activity producing the discharge. Enter the name of the applicant as it is officially or legally referred to;
do not use colloquial names as a substitute for the official name.
Name Unimin Corporation—Schoolhouse Facility
Mailing address of applicant:
Street address Post Office Box 588
City Spruce Pine County Mitchell
State NC Zip Code 28777
Telephone Number (828) 765-4283 Fax Number [phone]
e-mail address
2. Mailing address of applicant's Authorized Agent/ Representative:
Complete this section if an outside consulting limit engineering firm will act on behalf of the applicant/permittee
Street address
City County
State Zip Code
Telephone Number ( ) Fax Number ( )
e-mail address
3. Facility Location:
Street address 107 Hams Mining Company Road. Hwy 19E
City Spruce Pine County Avery
State NC Zip Code 28777
Telephone Number ( 828 ) 765-4251 Fax Number (828) 765-6648
4. Nature of Business: Mining.milling and separation of Alaskite ore to produce quartz.feldspar and mica.
State the nature of the business conducted at the plant or operating facility
I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such
information is true,complete,and accurate.
Andrew G.Bradley VP-Environmental Affairs
Printed Name of Person Signing The
626 0 (
Signature of Appicant or Autfarized Agent Dale Appicat on Signed
North Carofna General Statue 143-215.6(bX2)provides that Any person who knowigiy makes any take statement nation,or certrratian in any appication,record,report,glen,or other
document fibs or required b be maintained under Article 21 or regula ons of the Environmental Management Commission implementing that Article,or wire(akifies,tampers with,or knowing
renders inaccurate any recording or monitoring device or method required b be operated or maintained under Article 21 or regulons of the Environmental Management Commission implementing
that Article,shall be gully of a misdemeanor punishable by a fine not to exceed$10,000,or by imprisonment not to exceed sir months,or by both. (18 U.S.C.Section 1001 provides a punishment
by a fine or not more than$10,000 or imprisonment not more than 5 yews,or both,for a simiar offense.)
1,41

•
NPDES Application Form - Standard Form C
Major Manufacturing or Commercial Facilities
SECTION II. BASIC DISCHARGE DESCRIPTION
Complete this section for each discharge from the facility to surface waters.
SEPARATE DESCRIPTIONS OF EACH DISCHARGE ARE REQUIRED EVEN IF SEVERAL DISCHARGES ORIGINATE IN THE SAME FACILITY.
All values for an existing discharge should be representative of the twelve previous months of operation. If this is a proposed discharge,values should
reflect best en jneering estimates.
1. Outfall Number 001 and Type process water
Give the nature of the discharge(process water,non-contact coding water,etc.)
2. Discharge To End Date: n/a
If the discharge is scheduled to be discontinued within the next 5 years,give the date(or best estimate)the discharge will end.
3. Discharge Receiving Stream Name: North Toe River,tributary to the Nolichuckv
Give the name of the waterway(at the point of discharge)by which it is usually designated on published maps of the area. If the discharge is
to an unnamed tributary,so state and give the name of the first body of water fed by that tributary which is named on the map,e.g.,UT to
McIntire Creek, where McIntire Creek is the first water way that is named on the map and is reached by the discharge.
4. Discharge Type and Occurrence
a. Check whether the discharge is continuous or intemxttent. If the discharge is Intermittent,describe the frequency of discharge
ig Continuous fl Intermittent Frequency
b. Enter the average number of days per week(during periods of discharge)this discharge occurs.
7 days per week
5. Water Treatment Additives
Complete the table below if this outfall:
• discharges coding and/or steam water generation
• water treatment additives are used(any conditioner,inhibitor,or algicide)
• does not have whole-effluent toxicity testing required
Additive Manufacturer Quantity Chemical Composition
(pounds added per million (active ingredient(s))
gallons of water treated)