nc0023540_Regional Office Historical File Pre 2018

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NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Mr. Walter P. Rhyne
Belmont Textile Machinery Company
P.O. Box 568
Mount Holly, NC 28120-0568
Dear Mr. Rhyne:
Donald R. van der Vaart
Secretary
April 7, 2015 RECEIVED/NCDENR/I WR
APR 2 2 2015
WQROS
MOORESVILLE REGIONAL. OFFICE
Subject: Issuance of NPDES Permit NCO023540
Belmont Textile Machinery Company WWTP
Gaston County
Class WW-2
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. Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended).
This final permit includes no major changes from the draft permit sent to you on
February 11, 2015.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this
decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain any other Federal, State, or Local governmental permit that may be required. If you
have any questions concerning this permit, please contact Charles Weaver at telephone number (919) 807-
6391.
�Y
Jay Zimmerman, Diret'o
Division of Water Resou ces
cc: Central Files
ooie`sville Regional -Office
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / http:l/pofal.ncdenr.org/web/wq
An Equal Opportunity/Affirmative Action Employer— 501/6 Recycled/101/o Post Consumer Paper

Permit NCO023540
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
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, the
Belmont Textile Machinery Company
is hereby authorized to discharge wastewater from a facility located at the
Belmont Textile Machinery Company WWTP
1744 West Catawba Avenue
north of Belmont
Gaston County
to receiving waters designated as Fites Creek in subbasin 03-08-34 of the Catawba River
Basin in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective May 1, 2015.
This permit and authorization to discharge shall expire at midnight on February 29, 2020.
Signed this day April 7, 2015
S. y Zimmerman, Direct
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 5

Permit NCO023540
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked.
As of this permit 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.
Belmont Textile Machinery Company is hereby authorized to:
1. Continue to operate an existing 0.005 MGD wastewater treatment facility with the
following components:
♦ Bar screen / comminutor
♦ Aeration basin with diffused aeration
♦ Weir tank
♦ Chlorine contact chamber / chlorine disinfection
♦' Sodium sulfite dechlorination
♦ Flow measuring device
♦ Two effluent discharge pumps
This facility is located north of Belmont off West Catawba Avenue at the Belmont
Textile Machinery Company WWTP in Gaston County.
2. Discharge from said treatment works at the location specified on the attached map into
Fites Creek, currently classified WS-IV waters in the Catawba River Basin.
Page 2 of 5

Permit NCO023540
Part I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 15A NCAC 02B.0500 et seq.]
During the period beginning on the effective date of this permit and lasting until
expiration, the Permittee is authorized to discharge from outfall 001. Such discharges
shall be limited and monitored' by the Permittee as specified below:
PARAMETER
LIMITS
MONITORING REQUIREMENTS
[PCS Code]
Monthly Average
Daily Maximum
Measurement
Sample Type
Sample
Frequency
Location
Flow
0.005 MGD
Weekly
Instantaneous
Influent or
[50050]
Effluent
BOD, 5-day (20°C)
to-030] c0310
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
NH3 as N D00 14] Ciceol0
April 1- October 31
9.1 mg/L
35.0 mg/I
Weekly
Grab
Effluent
NH3 as N [DD6't0] Goa(
November 1- March 31
2/Month
Grab
Effluent
Fecal [31616] /
imeanrm
(geometric
200 / 100 ml
400 / 100 ml
Weekly
Grab
Effluent
Total Resid al Chlorine (TRC)2
28
2/Week
[50060
pg/L
Grab
Effluent
Temperature (°C)
00010]
Weekly
Grab
Effluent
pH
[00400]
> 6.0 and < 9.0 standard units
— —
Weekly
Grab
Effluent
Footnotes:
1. No later than 270 days from the effective date of this permit, the permittee shall begin
submitting discharge monitoring reports electronically using the Division's eDMR system [see
A. (2)].
2. The Division shall consider all effluent TRC values reported < 50 µg/L to be in compliance with
the permit. However, the Permittee shall continue to record and submit all values reported by
a North Carolina certified laboratory (including field certified), even if these values fall below
50 µg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. (2) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 143-215.1 (b)]
Proposed federal regulations require electronic submittal of all discharge monitoring reports
(DMRs) and specify that, if a state does not establish a system to receive such submittals, then
permittees must submit DMRs electronically to the Environmental Protection Agency (EPA). The
Division anticipates that these regulations will be adopted and is beginning implementation.
Page 3 of 5

Permit NCO023540
NOTE: This special condition supplements or supersedes the following sections within Part II of
this permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) . Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Roporting [Supersedes Section D. (2.) and Section E. (5.) (a)l
Beginning no later than 270 days from the effective date of this permit, the permittee shall
begin reporting discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month
and submitted electronically using eDMR. The eDMR system allows permitted facilities to
enter monitoring data and submit DMRs electronically using the internet. Until such time
that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting
Regulation (CROMERR), permittees will be required to submit all discharge monitoring data
to the state electronically using eDMR and will be required to complete the eDMR submission
by printing, signing, and submitting one signed original and a copy of the computer -printed
eDMR to the following address:
NC DENR / Division of Water Resources / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, NC 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting
requirements may be granted and discharge monitoring data may be submitted on paper DMR
forms (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies
shall be submitted to the mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the
date the facility would be required under this permit to begin using eDMR. Temporary
waivers shall be valid for twelve (12) months and shall thereupon expire. At such time, DMRs
shall be submitted electronically to the Division unless the permittee re -applies for and is
granted a new temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic
reporting requirements is found on the following web page:
http://Dortal.ncdenr.org/�web/wa/a:dmin/bog/il)u/edmr
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility, on the last day of the
month following the commencement of discharge.
Page 4 of 5

Permit NC0023540
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B.
11. d
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in
Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory
authority for eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR
user account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please
visit the following web page: .
htti)://l)ortal.ncdenr.org/Web/Wg/admin/boa/il)u/edmr'
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and -all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering
the information, the information submitted is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fines and imprisonment for knowing violations."
3. Records Retention 7Supplements Section D. (6.)l
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from
the date of the report. This period may be extended by request of the Director at any time [40
CFR 122.41].,
Page 5 of 5

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Latitude: 35°17'16'
N C O023540
Longitude: 81°02'31"
Belmont Textile
Stream Class: WS-IV
Subbasin:03-08-34
Machinery Company
Y P Y
Receiving Stream: Fites Creek
ua�
Facility
Location
Gaston County
V Map not to scale

NPDES Permit Standard Conditions
Page 1 of 18
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be
representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days. These samples shall be representative of
the wastewater discharged during the sample period.
Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et.
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system, which is
not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The
Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval
between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite
samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period
of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with
the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow
measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the
preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
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NPDES Permit Standard Conditions
Page 2 of 18
(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a
constant time interval. Use of this method requires prior approval by the Director. This method may only be
used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply:
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
➢ Influent samples shall not be collected more than once per hour.
➢ Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period.
➢ Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling
period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be
monitored continually except for the infrequent times when there may be no flow or. for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge".is calculated as
the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the
"daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also
"Composite Sample," above.)
Daily Maximum
The highest "daily discharge" during the calendar month.
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the
permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations
prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that
requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWR or "the Division"
The Division of Water Resources, Department of Environment and Natural Resources.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point source
whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this
permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N = the number of individual values. For purposes of
calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1.
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be
collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream
samples).
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NPDES Permit Standard Conditions
Page 3 of 18
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA.
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result in
that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges:
Permit Issuing Authority
The Director of the Division of Water Resources.
Quarterly Average (concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe property damage
Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or
substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a)(1) of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
Weekly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of
the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or
modification; or denial of a permit renewal application [40 CFR 122.41].
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or
standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the
requirement.
b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or
any permit condition or limitation implementing any such sections in a permit issued under section 402, or any
requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is
subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR
122.41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of
the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402
of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or
402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
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NPDES Permit Standard Conditions
Page 4 of 18
imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent
violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by
imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)]
d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal
penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the
case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both.
[33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and
who knows at that time that he thereby places another person in imminent danger of death or serious bodily
injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than
15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a
person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or
both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating
the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)]
f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of this Act. Administrative penalties for Class I violations are not to
exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed
$37,500. Penalties for Class H violations are not to exceed $16,000 per day for each day during which the
violation continues, with the maximum amount of any Class H penalty not to exceed $177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)]
2. Duty to Mitigate
The Permittee shall take all, reasonable steps to minimize or prevent any discharge or- sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41(d)].
3. Civil and Criminal Liability
Except as provided in permit conditions on "Bypassing" (Part II.C.4), "Upsets" (Part II.C.S) and "Power Failures"
(Part H.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities,
or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC
1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the
responsibility for effective compliance may be temporarily suspended.
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
5. Property Rights
The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive
privileges, nor does it authorize any injury to' private property or any invasion of personal rights, nor any
infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
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NPDES Permit Standard Conditions
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7. Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the
remainder of this permit, shall not be affected thereby [NCGS 15013-23].
8. Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit
Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)].
9. Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Permittee must apply for and obtain a new permit [40 CFR 122.41(b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to
discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required
by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director. (The Director shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not
requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to
enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40
CFR 122.41(k)].
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge
of a principal business function, or any other person who performs similar policy or decision making
functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating
facilities, provided, the manager is authorized to make management decisions which govern the operation
of the regulated facility including having the explicit or implicit duty of making major capital investment
recommendations, and initiating and directing other comprehensive measures to assure long term
environmental compliance with environmental laws and regulations; the manager can ensure that the
necessary systems are established or actions taken to gather complete and accurate information for permit
application requirements; and where authority to sign documents has been assigned or delegated to the
manager in accordance with corporate procedures .
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person. A
person is a duly authorized representative only if-
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall operation
of the regulated facility or activity, such as the position of plant manager, operator of a well or well field,
superintendent, a position of equivalent responsibility, or an individual or position having overall
responsibility for environmental matters for the company. (A duly authorized representative may thus be
either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22]
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c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because
a different individual or position has responsibility for the overall operation of the facility, a new authorization
satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports, information, or applications to be signed by an authorized representative [40 CFR
122.22]
d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following
certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
7 certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are sign fcantpenalties for
submitting false information, including the possibility offines and imprisonment for knowing violations. "
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the
Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes
or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)].
13. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al.
14. Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Owners of classified water pollution control systems must designate operators, certified by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the
system, and, for each classification must [T15A NCAC 08G .0201]:
a. designate one Operator In Responsible Charge (ORC) who possesses a valid certificate of the type and grade at
least equivalent to the type and grade of the system;
b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system, with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year; and
c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission
(or to the local health department for owners of subsurface systems) countersigned by the designated certified
operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible
Charge (Back-up ORC):
(1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or
(2) within 120 calendar days following:
➢ receiving notification of a change in the classification of the system requiring the designation of a new
Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC)
of the proper type and grade; or
➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in
Responsible Charge (Back-up ORC).
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(3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating
at least one of the responsibilities.
The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least weekly
➢ Comply with all other conditions of 15A NCAC 08G .0204.
The ORC of each Class II, III and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least five days per week, excluding holidays
➢ Properly manage and document daily operation and maintenance of the facility
➢ Comply with all other conditions of 15A NCAC 08G .0204.
Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions
of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality
assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only
when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance
of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a
member of the Permittee's staff.
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)].
4. Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the
provisions of Paragraphs b. and c. of this section.
b. Notice [40 CFR 122.41(m)(3)]
(1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice,
if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality
and effect of the bypass.
(2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system -wide collection system
permit associated with the treatment facility.
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(3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c.
(1) of this section.
5. Upsets
a. Effect of an upset [40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of
this condition are met. No determination made during administrative review of claims that noncompliance was
caused by upset, and before an action for noncompliance, is final administrative action subject to judicial
review.
b. Conditions necessary for demonstration of upset: Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant
evidence that:
(1) An upset occurred and that the Permittee can identify the cause(s) of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part II.E.6.(b) of this permit.
(4) The Permittee complied with any remedial measures required under Part II.B.2. of this permit.
c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding.
6. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States except as permitted
by the Commission. The Permittee shall comply with all applicable state and Federal regulations governing the
disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR
Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To
Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to
prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources, standby generators or retention of inadequately treated effluent.
Section D. Monitoring and Records
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge.
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this
permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of
water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority [40 CFR 122.410)].
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (MR 1, 1. 1, 2, 3) or alternative forms approved by the
Director, postmarked no later than the last calendar day of the month following the completed reporting period.
The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new
facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of these,
and all other reports required herein, shall be submitted to the following address:
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NC DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall. be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of
this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4. Test Procedures
Laboratories used for sample analysis must be certified.by the Division. Permittees should contact the Division's
Laboratory Certification Section (919 733-3908 or http://portal.ncdenr,.org/web/wq/lab/cert) for information
regarding laboratory certifications.
Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field
parameter laboratory certifications.
Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS
143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section
304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal,
approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been
specified in this permit [40 CFR 122.41].
To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported down
to the minimum detection or lower reporting level of the procedure. If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most
sensitive (method with the lowest possible detection and reporting level) approved method must be used.
Penalties for Tampering
The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring
device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not
more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years,
or both [40 CFR 122.41].
6. Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR
503), the Permittee shall retain records of all monitoring information, including:
➢ all calibration and maintenance records
➢ all original strip chart recordings for continuous monitoring instrumentation
➢ copies of all reports required by this permit
➢ copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time [40 CFR
122.41].
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7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the
following information [40 CFR 122.411:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements-,
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as
a representative of the Director), upon the presentation of credentials and other documents as may be required by
law, to;
a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the CWA, any substances or parameters at any location [40 CFR 122.41(i)].
Section E Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of
any pollutant identified in this pen -nit more frequently than or at a level in excess of that authorized shall constitute
a violation of the permit.
2. Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility [40 CFR 122.41(1)]. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to
notification requirements under 40 CFR 122.42(a)(1); or
c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and
such alteration, addition or change may justify the application of permit conditions that are different from or
absent in the existing permit, including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit [40 CFR 122.41(l)(2)].
4. Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in
particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit, or
a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary
under the CWA [40 CFR 122.41(1)(3), 122.61] or state statute.
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5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)].
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge, the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment. Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances. A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission
shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact
dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to
continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40
CFR 122.41(1)(6)].
b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral
report has been received within 24 hours. -
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone], [phone] or [phone].
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the
time monitoring reports are submitted. The reports shall contain the information listed in Part II.E.6. of this permit
[40 CFR 122.41(1)(7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted
incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or
information [40 CFR 122.41(1)(8)].
9. Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division
as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first
knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all
or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215.1(b)(2) or in Section 309 of the Federal Act.
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11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement, representation, or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than
$25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41].
12. Annual Performance Reports
Permittees who own or operate facilities that primarily collect or treat municipal or domestic wastewater and have
an average annual flow greater than 200,000 gallons per day shall provide an annual report to the Permit Issuing
Authority and to the users/customers served by the Permittee (NCGS 143-215.1C). The report shall summarize the
performance of the collection or treatment system, as well as the extent to which the facility was compliant with
applicable Federal or State laws, regulations and rules pertaining to water quality. The report shall be provided no
later than sixty days after the end of the calendar or fiscal year, depending upon which annual period is used for
evaluation.
The report shall be sent to:
NC DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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PART III
OTHER REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment
capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an
Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements
under Item b. of this Section.
b. In accordance with NCGS 143-215.1(a5) [SL 2011-394], no permit shall be required to enter into a contract for the
construction, installation, or alteration of any treatment work or disposal system or to construct, install, or alter any
treatment works or disposal system within the State when the system's or work's principle function is to conduct,
treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and
the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the
industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the
discharge may be modified if required by federal regulation.
c. Issuance of an AtC will not occur until Final Plans and Specifications for theproposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of
any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following
"notification levels";
(1) One hundred micrograms per liter (100 µg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter
(500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for
antimony;
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent
basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification levels";
(1) Five hundred micrograms per liter (500 µg/L);
(2) One milligram per liter (1 mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered
by this permit. The Division may require specific measures during deactivation of the system to prevent adverse
impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the
permitted facility.
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PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Definitions
In addition to the definitions in Part H of this permit, the following definitions apply to municipal facilities:
Indirect Discharge or Industrial User
Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section
307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and 0) and 15A NCAC 02H .0903(b)(11)]
Interference
Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which
causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the
Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in
compliance with specified applicable State and Federal statutes, regulations, or permits. [15A NCAC 02H
.0903(b)(14)]
Pass Through
A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with
discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of
the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge
permit. [15A NCAC 02H .0903(b)(23)]
Publicly Owned Treatment Works (POTW)
A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization.
This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal
sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T
.0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government
organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges
to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW
treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of
POTW may be referred to as a "satellite POTW organization." [15A NCAC 02H .0903(b)(26)]
"Sijznificant Industrial User" or "SIU"
An Industrial User that discharges wastewater into a publicly owned treatment works and that [15A NCAC 02H
.0903(b)(33)]:
1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary,
noncontact cooling and boiler blowdown wastewaters); or
2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted
flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS
and ammonia; or
3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or
4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely
affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent
limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options;
5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraphs 1 or 2 of this defmition above has no reasonable potential for adversely affecting the
POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and
conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a
Significant Industrial User (SIU); or
6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a
non -significant categorical Industrial User.
Section B. Publicly Owned Treatment Works (POTWs)
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All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]:
1. Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of
transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants;
and
2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as
influent to that POTW at the time of issuance of the permit.
3. For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of effluent
introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW.
Section C. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users
discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information
becomes available to establish limitations for such pollutants, this permit may be. revised to specify effluent
limitations for any or all of such other pollutants in accordance with best practicable technology or water quality
standards.
2. Prohibited Discharges
a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the
introduction of pollutants or discharges into the waste treatment system or waste collection system which
cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40
CFR 403.5(a)(1)]
b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the
introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]:
(1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to,
wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade
using the test methods specified in 40 CFR 261.21;
(2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower
than 5.0, unless the works is specifically designed to accommodate such discharges;
(3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in
Interference;
(4) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate
and/or pollutant concentration which will cause Interference with the POTW;
(5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no
case heat in such quantities that the temperature at the POTW. Treatment Plant exceeds 40°C (104°F)
unless the Division, upon request of the POTW, approves alternate temperature limits;
(6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
(7) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that
may cause acute worker health and safety problems; or
(8) Any trucked or hauled pollutants, except at discharge points designated by the POTW.
c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other
unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or
the operation of the POTW.
The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office.
Any information shall be provided orally within 24 hours from the time the Permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes
aware of the circumstances. The written submission shall contain a description of the discharge; the
investigation into possible sources; the period of the discharge, including exact dates and times; if the
discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate, and prevent reoccurrence of the noncompliance,
Version 111,0912011.1

NPDES Permit Standard Conditions
Page 16 of 18
3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to
supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by
the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding
some or all of the industries discharging to the municipal system.
4. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment
Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and
specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from
any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new
Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as
required under section D below as well as 15A NCAC 02H .0907(a) and (b). [40 CFR 122.440)(2)]
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW
Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program
as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the
approved State pretreatment program, as appropriate.
Section D. Pretreatment Programs
Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403,
North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance
with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment
program submittal are an enforceable part of this permit. [40 CFR 122.440)(2)]
The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40
CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained. in
its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is
not limited to the implementation of the following conditions and requirements. Terms not defined in Part II or Part IV
of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3.
I. Sewer Use Ordinance (SUO)
The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A
NCAC 02H .0903(b)(32), .0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)]
2. Industrial Waste Survey (IWS)
The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or
treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.440)(1)],
including identification of all Industrial Users that may have an impact on the POTW and the character and amount
of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users
meeting the defmition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs, the
IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those
satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The
Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as
required by the Division. The IWS submission shall include a summary of any investigations conducted under
paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(f)(2) and 403.91
3. Monitoring Plan
The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to
be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment
local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts II.D and II.E.5.). [15A
NCAC 02H .0903(b)(16), .0906(b)(3) and .0905]
4. Headworks Analysis (HWA) and Local Limits
The Permittee shall obtain Division approval of a HWA at least once every five years, and as. required by the
Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the
Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an
updated HWA or documentation of why one is not needed) [40 CFR 122.44]. The Permittee shall develop, in
accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions
listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are
Version 1110912011.1

NPDES Permit Standard Conditions
Page 17 of 18
enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and
.0906(b)(4)]
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for
operation of pretreatment equipment and discharge to the Permittee's collection system or, treatment works. These
permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special
conditions, and compliance schedules as necessary for the installation of treatment and control technologies to
assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The
Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the HWA and the limits
from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii);
NCGS 143 215.67(a)]
6. Authorization to Construct (AtQ
The Permittee shall ensure that an Authorization to Construct permit (AtC) is issued to all applicable Industrial
Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the
proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all
Industrial User Pretreatment Permit (IUP) limitations. [15A NCAC 02H .0906(b)(7) and .0905; NCGS 143-
215.1(a)(8)]
7. POTW Inspection & Monitoring of their lUs
The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division
approved pretreatment program in order to determine, independent of information supplied by Industrial Users,
compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The
Permittee must:
a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year;
b. Sample all Significant Industrial Users (SIUs) at least once per calendar year for all SIU permit -limited
parameters including flow except as allowed under 15A NCAC .0908(e); and
c. At least once per year, document an evaluation of any non -significant categorical Industrial User for
compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non-
significant.
8. IU Self Monitoring; and Reporting
The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting
requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit, or in 1.5A
NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR
122.440)(2) and 40 CFR 403.12]
9. Enforcement Response Plan (ERP)
The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards
promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards
as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations, and other pretreatment
requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response
Plan (ERP) approved by the Division. [15A NCAC 02H .0903(b)(7), .0906(b)(8) and .0905; 40 CFR 403.8(f)(5)]
10. Pretreatment Annual Reports (PAR)
The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual
reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a
partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment
requirements and other pretreatment implementation issues.
For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report
(PAR) describing its pretreatment activities over the previous calendar year to the Division at the following
address:
Version 1110912011.1

NPDES Permit Standard Conditions T `�
Page 1.8 of 18
NC DENR / Division of Water Resources / Water Quality Permitting Section
Pretreatment, Emergency Response, and Collection Systems (PERCS) Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
These reports shall be submitted by March I of each year and shall contain the following:
a. Narrative
A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non-
compliance and to ensure compliance with pretreatment requirements;
b. Pretreatment Program Summary (PPS)
A pretreatment program summary (PPS) on forms or in a format provided by the Division;
c. Significant Non -Compliance Report (SNCR)
A list of Industrial Users (IUs) in significant noncompliance (SNC) with pretreatment requirements, and the
nature of the violations on forms or in a format provided by the Division;
d. Industrial Data Summary Forms (IDSF)
Monitoring data from samples collected by both the POTW and the Significant Industrial Users (SIUs). These
analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format
provided by the Division;
e. Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of
IUs in SNC, a summary of data or other information related to significant noncompliance determinations for
IUs that are not considered SIUs, and any other information, upon request, which in the opinion of the Director
is needed to determine compliance with the pretreatment implementation requirements of this permit;
11. Public Notice
The Permittee shall publish annually a list of Industrial Users (IUs) that were in significant noncompliance (SNC)
as defined in the Permittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements
and standards during the previous twelve month period. This list shall be published within four months of the
applicable. twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(b)(5) and .0905 and 40 CFR
403.8(f)(2)(viii)]
12. Record Keening
The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with
support information including general records, water quality records, and records of industrial impact on the
POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [15A
NCAC 02H .0908(f); 40 CFR 403.12(o)]
13. Pretreatment Program Resources
The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved
pretreatment program. and retain a written description of those current levels of inspection. [15A NCAC 02H
.0906(b)(9) and (10) and .0905; 40 CFR 403.8(f)(3), 403.9(b)(3)]
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW
monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a
permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907.
Version 1110912011.1

__ -. UiL,atIviichael F. Easley, Governor
twill' m G. Ross Jr., Secretary
North Carolina Department ofEn iror�m X.d Natural Resources
IAlan W. Klimek, P.E. Director
Division of Water Quality
May 31, 2007 JUN 0 42007
Mr. Steve Chandler
Barringer Sand, LLC
2319 Crescent Avenue
Charlotte, NC 28207-1501
Subject: General Permit No. NCG520000
Modified Certificate of Coverage NCG520088
Barringer Sand, LLC
Gaston County
Dear Mr. Chandler:
In accordance with your application for modification of NPDES COC NCG52088, the Division of Water Quality
has agreed to your request to extend operations to the East side of Dutchmans Creek as shown on submitted
Engineering drawings "General Mine Map" revised 12/28/2006, and "Mine Details" revised 12/28/2006. The
subject Certificate of Coverage to discharge under the subject state-NPDES general permit will not be reissued;
this letter serves as your authorization to continue to operate in Dutchmans-Creek.
Please note that General Permit NCG52000 expires on July 31, 2007. As soon as the revised General Permit is
approved, you will be issued a renewed Certificate of Coverage. You do not need to submit an application for
renewal. Until the renewed COC is issued, please continue to operate under the terms and conditions of your
existing COC.
Please take notice that the Certificate of Coverage is not transferable except after notice to the Division of Water
Quality. The Division of Water Quality may require modification or revocation and reissuance of the certificate
of coverage. 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 permit that may be required.
If you have any questions concerning this permit, please contact Jim McKay at telephone number 919/733-5083,
extension 595.
Sincerely,
Alan W. Klimek,VP._E.
cc: Central Files
NPDES General Permit Files_
Moor esvillekegional-Office,-Surface Water -Protection
N""o,h�Carolina
Naturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwateMualitv.org Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]

Michael F. Easley, Governor: William G. Ross, Jr., Secretary
Alan W:. Klimek, P.E., Director
January 1.1, 2007
Steve Chandler
Barringer Sand, LLC
2319. Crescent Avenue
Charlotte, NC 28207-1501
Subject: Renewal Notice % General •Permit NCG520000
Certificate of Coverage NCG520089
Gaston County
Dear Permittee:
You are receiving this notice because your company currently operates a dredging operation covered under the
subject General Permit for the discharge of sand -dredging runoff. NCG520000 will. expire on July 31, 2007, Federal.(40 CFR
122.41) and North Carolina (15A. NCAC-2H 0105(e)) regulations require that permit renewal applicationsbe filed at least.180 -
days prior to expiration of the current permit. To satisfy this requirement, the Division most receive a renewal. request
postmarked no later than February 1, 2007.
The Certificate of Coverage (CoC).specific to your. operation was last issued on, August 21, 2006. The Division needs.
information from you to determine if coverage under NCG520000 is still necessary.
➢ If your property still has,a wastewater system like the ones described in the enclosed Technical Bulletin, you must renew the
:subject CoC. Complete the enclosed form and submit it to'the address on the form.
➢ If you are not sure what.type of system your property has, contact Wes Bell in.the NC DENR Mooresville Regional Office at
(704) 663-.1699: That person [or other staff members] can help you determine if you should renew your CoC.
➢ If this site has beenshut down and no further dredging will occur, contact meat the address or phone number listed .below to
request rescissionof the CoC:
Please verify that the provided information. is correct, or make. corrections on the attached form. Complete the
additional questions, then sign and date the form., The completed form should be submitted to the address listed below the
signature block.
If you have any questions. concerning this matter, please contact me at'the telephone number or.e-mail address listed
below..�f a,
:..Sincerely,
�7
Charles H. Weaver, Jr. JAN i i
NPDES Unit
cc: Central Files .
' ooresville ReaIonaI'Office /Wes Bel.
NPDES file . �F S
1617 Mail Service Center, Raleigh, North:Carolina -27699 1617 Ones 1
11
512 North Salisbury. Street, Raleigh,,North Carolina 27604 NO11C.O1111a
Phone: [phone], extension 511 / FAX [phone] % charles.weaver@ ncmai1.net
a o ;Vaturally,
An- Equal Opportunity/Affirmative Action Employer— 50 /o Recycled/10 /o Post Consumer Paper,

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DEC FR Michael F. Easley, Governor
. OCR pG
li T1VAIam'��mi
ecre
North Carolina Dep "t of� conmen% asources �uvB��r_ I?tC�i�t , FFICE
p r 'Alga W? Klimel� P.E. Director
1"sion• ofWater Quality
August 21, 2006
AUG 28 2006
Mr. Steve Chandler, manager.
Barringer Sand, LLC
2319- Crescent Avenue
Charlotte, NC 28207-1501 ALI' CTIM'G .
Subject: General Permit No. NCG520000 -
Certificate of Coverage NC65N089
Barringer Sand, LLC.
W. Gaston County
Dear Mr. Chandler: ,
In accordance with your application for discharge, the Division is forwarding herewith the subject
Certificate of Coverage to discharge under the subject state-NPDES general permit. This permit is issued
pursuant to the requirements of North Carolina General Statue 143-215 .1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection agency dated May 9; 1994 (or as subsequently.
amended).
The following information is included with your permit package:
■ A copy of the Certificate of Coverage for your treatment facility -
■ A copy of General Wastewater Discharge Permit NCG520000
■ A copy of a Technical Bulletin for General Wastewater Discharge Permit NCG52000
If any parts,'measurement frequencies or sampling requirements contained in this.general permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand. is made, the certificate of coverage shall be -final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the Division
of Water Quality. The Division of Water Quality may require modification or revocation and reissuance of the
certificate of coverage. 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 permit that may be required.
If you have any questions concerning this permit, please contact Agyeman Adu-Poku-at telephone
number 919/733-5083, -extension 508.
Sincerely,
V� Alan W. Klimek, P.E.
cc: Central Files
NPDES General Permit Files
j Mooresville Regional Office/Surface Water Protection _
io Carolina
..
iurahlr�
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.newaterguality.org Location: 512 N. Salisbury St. Raleigh, NC 27604 . Fax [phone] . 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer-50% Recycled/10% Post Consumer Paper

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Barringer Sand LLC
State Grid/Ouad:
F 14 SE I Mt Holly, NC
Latitude:
35' 18' 10" N
Receiving Stream:
Dutchman's Creek
Drainage Basin:
Catawba River Basin
Permitted Flow:
0.624 MGD
Longitude:
81' 01' 04!'W
Sub -Basin:
03-08-36
Stream Class:
WS IV
Facility
Location
not to scale
No rt7hl NPDES Permit No. NCG520089
Gaston County

6&u
SOC PRIORITY PROJECT: Yes No x
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section -
Attention: Agyeman Adu-Poku
Date: August 9, 2006
NPDES STAFF REPORT AND RECOMMENDATION
County: Gaston
MRO No.: 06-06
Permit No. NCG520089
PART I - GENERAL INFORMATION
1. Facility and address: Barringer Sand, LLC
Johnson Mine No.2
2319 Crescent Avenue
Cherryville, N.C. 28207-1501
2. Date of investigation: August 9, 2006
3. Report prepared by: Samar Bou-Ghazale, Env. Engineer I
4. Persons contacted and telephone number. Mr. Jeff Howe, Owner, tel# [phone]
5. Directions to site: From the intersection of I-85 and Hwy 273 in Belmont, travel north on
Hwy 273 to the intersection with Hwy 27 in Mount Holly. Turn left on Hwy 27 and
travel approximately 4000 feet to the intersection with North Hawthorn Street. Turn right
on North Hawthorn Street and travel approximately 2000 feet to the intersection with
Woodlawn Avenue. Turn right on Woodlawn Avenue and travel approximately 1000 feet
to site located on left.
6. Discharge point(s). List for all discharge points:
Latitude: 3 5 ° 14 ' 20" Longitude: 81 ° 34' 47"
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on
map.
U.S.G.S. Quad No.: F 14 SE U.S.G.S: Name: Mt. Holly, N.C.

11 a- a
7. Site size and expansion are consistent with application? Yes x No_ If No, explain:
8. Topography (relationship to flood plain included): Gently rolling, 2-4% slopes. The site
is not located in a flood plain.
9. Location of nearest dwelling: The nearest dwelling is approximately 300 feet from the
site.
10. Receiving stream or affected surface waters: Dutchmans Creek
a. Classification: WS IV, CA
b. River Basin and Subbasin No.: Catawba 030836
c. Describe receiving stream features and pertinent downstream uses: The receiving
stream is approximately 70 feet wide with a sandy bottom. Downstream uses are
typical for class C waters.
PAIN II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 0.624 MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the wastewater treatment facility? 0.624
MGD
C. Actual treatment capacity of the current facility (current design capacity)? 0.624
MGD
d. Date(s) and construction activities allowed by previous Authorizations to
Construct issued in the previous two years: N/A
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: The proposed treatment facility consists of a settling pond for'the
sand dredging operation.
f. Please provide a description of proposed wastewater treatment facilities: see above
g. Possible toxic impacts to surface waters: N/A
h. Pretreatment Program (POTWs only): N/A
2. Residuals handling and utilization/disposal scheme: N/A
3. Treatment plant classification (attach completed rating sheet): N/A
4. SIC Code(s): 1442

PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction_ Grant Funds or are any public monies
involved (municipals only)? N/A
2. Special monitoring or limitations (including toxicity) requests: N/A
3. Important SOC, JOC or Compliance Schedule dates: N/A
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge
options available. Please provide regional perspective for each option evaluated. N/A
5. Air Quality and/or- Groundwater concerns or hazardous materials utilized at this facility
that may impact water quality, air quality, or groundwater: No AQ or GW concerns, nor
are hazardous materials utilized at this facility.
PART IV - EVALUATION AND RECOIVIM9NDA'TIONS
Barringer Sand, LLC is applying for an NPDES permit to discharge water fiom a settling.
basin used in a sand dredging operation. The basin design is still under review by the Land
Quality section for settling capacity. and trapping efficiency.
It is recommended that the pen -nit be issued once the mining permit. application is
approved by the Land Quality Section.
Signature of Report i'reparer
Surface WWer Protection Regional Supervisor
,0G
Da e
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of WArFR -
Mr. Steve Chandler, Manager
Barringer Sand, LLC
2319 Crescent Avenue
.Charlotte, NC 28207-1501
%r Michael F. Easley, Governor
Q William,G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
June 29, 2006
Subject: Application No. NCG520089
Barringer Sand, LLC
Gaston County
Dear Mr. Chandler:
This is to, acknowledge receipt of the following documents on June 26, 2006:
X Completed Notice of Intent (Application form),
Engineering Proposal (for proposed control facilities),
Request for certificate of coverage
X Application processing fee of $80.00.
X Engineering Economics Alternatives Analysis,
X Engineering Plans, and Specifications
X Local Government Signoff,
Source Reduction and Recycling,
Interbasin Transfer,
The items checked below are needed before review can begin:
_ Completed.Notice of Intent (Application Form),
Engineering proposal (see attachment),
Application Processing Fee of $50.00,
Delegation of Authority,
_ Biocide Sheet (see attached),
Engineering Economics Alternatives Analysis,
Engineering Plans and Specifications
Local -Government Signoff,
Source Reduction and Recycling;
_ Interbasin Transfer,
Other:
ARID NATURAL RESOURCES
M®0RESVILLE REGIONAL OFFICE
AL 0 3 200'
WAR
Q TIC
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC'27699,4617 Phone [phone]
Internet: ww%%,.ncwaterquali .or Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper
NAacRl C�a
t�ura11Y -
Customer Service
1-877-623-6748

This application has been assigned to Agyeman Adu-Poke (919/733-5083) ext.. 508 of the NPDES Unit
for review. You will be advised of any comments, recommendations, questions or other information
necessary for the review of the application.
I am, by copy of this letter, requesting that our Regional Office Supervisor prepare a staff report and.
recommendations regarding this discharge. If you have any questions regarding this application, please
contact the review person listed above.
Sincerely, _
Agyeman Adu-Poke
Environmental Engineer
NPDES Western Unit
J
cc: oo� es�iarle RegionaF -rJ LSur ace �. a er Pro ton
Permit Application File
Andresen & Associates/Edwina W. Eubanks

1
Division of. Water Quality / Water Quality Section
NCDENR National. Pollutant Discharge Elimination System
NDRTH CA cum Depmrm RT OP
FR_RONM&NTMD NauRu R6SOUROES
NCG520000
FOR AGENCY USE ONLY
Date Received
Year
Month
I Da
Certificate of Covera e
Check *
I Amount
P rmit Assigned to
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG520000: In -stream sand mining wastewater, associated stormwater and similar wastewaters
(Please print or type)
1) Mailin.g address of owner/operator:
Company Name: Pay P" v15ev' �j Gs VWj
Contact Person: ,Steve Ciwne iey
Street Address: 2 3/9 CvwSe-en f" , ve .
City:
Telephone No.: —7014
2) Location of facility producing discharge:
Facility Name: J6111josen A4"'1e /Ua•
Contact Person:
jyeve
Street Address:
y®
City:
�u
County:
Gayf
Telephone No.:
Stater ` VG: _>ZIRCode:
Fax: 7al-t 7-77 A
r IC/" V
3) Permit Contact (complete this section if permit contact is different from facility contact)
Contact Person:
Street Address:
City:
County:
Telephone No.:
State: ZIP Code:
Fax:
4) Physical location information:
A copy of an USGS'quad map or county map with the facility clearly located on the map IS REQUIRED to
be submitted with this application.
Please,,provide a narrative description of how to get to the facility (use street names, state road numbers,
and distance and direction from a roadway intersection): From I- —lake //wy Z 79.A/, to At H,//X,
_mon ON 11w417�Ck'-,/0/fedve), 6o e+td. a* 40,00? a Fft/ ;4. I,*?r %s ke rh A,: ir+ww7`tiv�N !f Go a6Wy�
�a61ef f p va ffurH /rFf on 4ve. aM gr'F&O yvav f, Ogcr" eF IS or r s htLS�v d+�.rcl/Fvn /!Yc J
5) This NPDES permit application applies to which of the following :
1 New or Proposed ❑ Modification
Please describe the modification:
❑ Renewal
Please specify existing permit number and original issue date:
Page 1 ' of 4
SWU-214-080102

NCG520000 N.O.I.
6) Does this facility have any other NPDES permits, including stormwater general permits?
No ❑ Yes
If yes, list the permit numbers for this facility:
7) Description of Discharge:
a) Will stormwater also be discharged? Yes ❑ No
If yes, does stormwater drain to a settling pond prior to discharge? IX Yes ❑ No
b) . Is the sand washed or rinsed on the bank after removal from the stream? ❑ Yes No
c) Is the discharge directly to the receiving water? ❑ Yes No
If no, submit a site map with the pathway to the potential receiving waters clearly marked. This
includes -tracing the pathway.of the storm sewer to the discharge ;point, if the storm sewer is the only
viable means of discharge.
d) Number of discharge points (ditches, pipes, channels, etc. that convey wastewater from the property):
one 5e�+�t�dsr yN
e) Volume of dischar a per each discharge point (in GPD):
#1: 6o �j ew #2: #3: #4
f) Please describe the type of process the sand dredging wastewater is being discharged from, be
specific. 7 e wo*vs eo!y fv'dµt 7W .,faod -d,.;Ft latiSe ,0/ 7%edv_PA�
f�iF� 6us*cQ#rw-.0 rhS will oce tav ay` 7`he 5if G
g) Is there any treatment being applied to the wastewater before discharge (check the type of treatment
in use).
OK Settling pond ❑ Lagoon ❑Other ❑None
(Please describe "Other")
h) . How much of the volume discharged is treated (state in percent)? /005�p
i) If any box in item (e) above, other than none, was checked, please include design specifics (i.e.*,
design volume, retention time, surface area, etc.) with submittal package. Existing treatment facilities
should be described in detail. Design criteria and/ operational data (including calculations) should be
provided to ensure that the facility can comply with the requirements of the General Permit. The
treatment shall be sufficient to meet with the limits set by the general permits. The trapping efficiency
should be greater than 75%. The surface area should be as large as possible to insure sedimentation
occurs. To secure optimum efficiency the flow length of the basin to the basin width should have a
ratio of 2:1
Note: Construction of any wastewater treatment facilities requires submission of three (3) sets of
plans and specifications along with the application.' Design of treatment facilities must comply
with requirements of 1.5A NCAC 2H .0138. If construction applies to this discharge, include
the three sets of plans and specifications with this application.
8) Discharge Frequency:
a) The discharge is: ❑ Continuous ❑ Intermittent 19 Seasonal
i) If the discharge is intermittent, describe when the discharge will occur:
ii) If seasonal check the month(s) the discharge occurs: M Jan. ICI Feb. ❑ Mar. ❑ Apr.
❑ May ❑ Jun. 99 Jul. 19 Aug. W Sept. 99 Oct. k Nov. WDec.
Page 2 of 4
SWU-214-080102

NCG520000 N.O.I.
b) Please check the days discharge occurs:
O Sat. X Sun. ( Mon. N'Tue. IV Wed. VOThu. QKFri.
9) Receiving waters:
a) What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility
wastewater discharges end up in? If the site wastewater discharges to a separate storm sewer
system (4S), name the operator of the 4S (e.g. City of Raleigh). 0uQ&Mxf
b) Stream Classification (WS-IV, C, etc.): WS-ZV C
10) Alternatives to Direct Discharge:
Address the feasibility of implementing each of the following non -discharge alternatives
a) Connection to a Regional Sewer Collection System
b) Subsurface disposal (including nitrification field, infiltration gallery, injection wells, etc.)
c) Spray irrigation
The alternatives to discharge analysis should include boring logs and/or other information indicating that a
subsurface system is neither feasible nor practical as well as written confirmation indicating that
connection to a POTW is not an option. It should also include a present value of costs analysis as outlined
in the Division's "Guidance For the Evaluation of Wastewater Disposal Alternatives".
11) Additional Application Requirements:
For new or proposed discharges, the following information must be included in triplicate with this
application or it will be returned as incomplete.
a) 7.5 minute series USGS topographic map (or a photocopied portion thereof) with discharge location
clearly indicated.
b) Site map, if the discharge is not directly to a stream, the pathway to the receiving stream must be
clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point.
c) If this application is being submitted by a consulting engineer (or engineering firm), include
documentation from the applicant showing that the engineer (Or firm) submitting the application has
been designated an authorized Representative of the applicant.
d) Final plans for the treatment system (if applicable). The plans must be signed and sealed by a North
Carolina registered Professional Engineer and stamped -"Final Design -Not released for construction".
e) Final specifications for all major treatment components (if applicable). The specifications must be
signed and sealed by a North Carolina registered Professional Engineer and shall include a narrative
description of the treatment system to be constructed.
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.
Printed Name of Person Signing: ��e �e G 1�uHc�lPv
Title: /ylcsYl�gCv'
,�c`c. �i' ii s-,�� err �•t�� � c.� / � � d � o G
(Signature of Applicant)
(Date Signed)
Page 3 of 4
swu-214-080102

NCG520000 N.O.I.
North Carolina General Statute 143-215.6 b (i) provides that:
Any person who knowingly makes any false statement, representation, or. certification in any application,
record, report, plan or other document filed or required to be maintained under Article 21 or regulations of
the Environmental Management Commission implementing that Article, or who falsifies, tampers with or
knowingly renders inaccurate any recording or monitoring device or method required to be operated or
maintained under Article 21 or regulations of the Environmental Management Commission implementing
that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $10,000, or by
imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a
fine of not more than $10,000 or imprisonment not more than 5 years.,. or both, for a similar offense.)
Notice of Intent must be accompanied by a check or money order for $80..00 made payable to:
NCDENR
Mail three (3) copies of the entire package to:
Stormwater and General Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina '27699-1617
Final Checklist
This application will be returned as incomplete unless all of the following items have been
included:
❑ Check for $80 made payable to NCDENR
❑ 3 copies of county map or USGS quad sheet with location of facility clearly marked on map
113 copies of this completed application and all supporting documents
❑ 3 sets of plans and specifications signed and sealed by a North Carolina P.E. (if applicable)
❑ Alternatives analysis including present value of costs for all alternatives
Note
The submission of this document does not guarantee the issuance of an NPDES permit
Page 4 of 4
SWU-214-080102

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62-S
ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY
3008 ANDERSON DRIVE, SUITE 102
RALEIGH, NC 27609
[phone]
June 8, 2006
Mr. Steve Chandler
Barringer Sand, LLC
2319 Crescent Ave.
Charlotte, NC 28207-1501
RE: Treatment System Design
And Engineering Alternatives Analysis
Johnson Mine No. 2
520 Woodlawn Ave.
Mount Holly, NC
Dear Mr. Chandler:
Engineering & Environmental Science Company (E2S) has completed the Treatment
System Design and the Engineering Alternatives Analysis for the above referenced site.
Following is a discussion of the project information and our evaluations.
GENERAL PROJECT INFORMATION
The Johnson Mine No. 2 will consist of dredging about 750 linear feet of Dutchmans
Creek in Mount Holly, North Carolina (See Figure 1, Attachment A). The proposed mine
limits consists of 11.89 acres of land with up to 4.0 acres to be disturbed (includes stream
dredge limits and stockpile area).
The treatment process will be a sediment basin that will also be used for Erosion Control
Collection for the stockpile area (see separately submitted mine maps). No processing of
the sand on -site will be conducted except screening the wood from the sand. This will be
conducted as the material is discharged from the dredge. Alternatively, the may be dry
screened to remove the wood. The water transported with the sand during dredging will
be the only process water generated.. Approximately 1,300gallons,of water per minute
could be discharged during the dredging operation. Eight (8) hours of operation per day
would result in 624,000 gallons per day of dredge generated water.

Page 2
Johnson Mine No. 2
STREAM LOW FLOW CONDITIONS
The discharge from the basin will eventually discharge back to the stream, and no net
depletion of stream water will occur. Furthermore, due to the agitation of the water
during dredging, the oxygen level in the stream will be increased by these activities.
Therefore, the 7Q10 and 30Q2 flow statistics were not verified for this project.
BASIN SETTLEMENT TREATMENT EFFICIENCY
The predominantly sandy stream bed has at least 95% of the material retained on the No.
200 sieve (74 micron particle size). The basin has been- designed (to include
consideration of the basin shape) to target the 10 — 12 micron size. Therefore, the basin
collection efficiency is at least 95% and more likely in the range of 99% (clays and fine
silts will not be collected by the basin (See Attachment B for calculations).
ALTERNATIVE ANALYSIS
From a technical standpoint, allowing the dredge water to be discharged back to the
stream is the most appropriate alternative. No net water loss would occur for the stream
and the oxygen content would also be increased in the stream.
Non -discharge of the water was evaluated as an alternative for this project. The water
would be discharged as a spray irrigation system. A subsurface disposal system was not
considered as this type of system would cost more than the surface spray irrigation
system. Disposal to the local sewer system would not be allowed, because 624,000
gallons of water per day is the equivalent to 1300 — four bedroom homes. Due to tax
based considerations, it is unlikely that the local utility would allow the dreged water to
be discharged into their sewer system.
Attachment C contains the economic analysis for the spray irrigation system. Due to
erosion control and collection 'considerations, the basin is required even with the spray
irrigation system: Therefore, the basin is considered at no alternative cost for this
evaluation. For the land costs only, the initial costs would be $318,000.00 for the spray
irrigation system. Therefore, the sediment basin with discharge back to the stream is the
most economical alternative.
e2,

Page 3
Johnson Mine No. 2
CLOSURE
We appreciate serving Barringer Sand on this project. Please contact us if you have any
questions.
ice l
Patrick S ngto E.
President
Attachment A: Vicinity Map
Attachment B: Sediment Basin Design
Attachment C: Engineering Alternatives Analysis
M
e2S

Attachment A:
Vicinity Map
M-

Attachment B:
Sediment Basin Design
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RUNOFF CURVE NUMBER COMPUTATION Version 2.10
Project johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked:. Date:
Subtitle: basin
Subarea : 1
-------------------------------------------------------------------------------
Hydrologic Soil Group
COVER DESCRIPTION A B C D
Acres (CN)
-------------------------------------------------------------------------------
FULLY DEVELOPED URBAN AREAS (Veg Estab.)
Impervious Areas
Paved parking lots, roofs, driveways - - - 3.24(98)
Total Area (by Hydrologic Soil Group) 3.24
-------------------------------------------------------------------------------
SUBAREA: 1 TOTAL DRAINAGE AREA: 3.24 Acres WEIGHTED CURVE NUMBER: 98
-------------------------------------------------------------------------------
TIME OF CONCENTRATION AND TRAVEL TIME Version 2.10
Project johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked: Date:
Subtitle: basin
Subarea #1 - 1
Flow Type 2 year Length Slope Surface n . Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec) (hr)
------------------------------------------------------ ------------------------
Sheet 3.5 300 0.04 b 0.118
- Time of Concentration = 0_12*
--- Sheet Flow Surface Codes ---
A Smooth Surface F Grass, Dense
B Fallow (No Res.) G Grass, Burmuda
C Cultivated < 20 % Res. H Woods, Light
D Cultivated > 20 % Res. I Woods, Dense
E Grass -Range, Short J Range, Natural
* - Generated for use by TABULAR method
--- Shallow Concentrated ---
--- Surface Codes ---
P Paved
U Unpaved

TABULAR HYDROGRAPH METHOD
Version 2.10
Project johson 2
User:
tps Date: 05-01-2006
County gaston
State: nc Checked:
Date:
Subtitle: basin
Total watershed area:
0.005 sq mi Rainfall type: II
Frequency: 10 years
--------------------------
Subareas ------------------------
1
Area(sq mi)
0.01*
Rainfall(in)
5.0
Curve number
Runoff(in)
98*
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t1n (53-a): j,2gGee�-f�
Tc (hrs)
0.12*
✓✓
(Used)
0.10
TimeToOutlet
0.00
Ia/P
0.01
(Used)
0.10
Time Total -------------
Subarea Contribution to Total
Flow (cfs)------------
(hr) Flow
1
11.0 1
1
11.3 1
1
11.6 1
1
11.9 8
8
12.0 16
16
12.1 24P
24P
12.2 15
15
12.3 5
5
12.4 4
4
12.5 3
3
12.6 3
3
12.7 2
2
12.8 2
2
13.0 2
2
13.2 1
1
13.4 1
1
13.6 1
1
13.8 1
1
14.0 1
1
14.3 1
1
14.6 1
1
15.0 1
1
15.5 1
1
16.0 1
1
16.5 1
1
17.0 0
0
17.5 0
0
18.0 0
0
19.0 0
0
20.0 0
0
22.0 0
0
26.0 0
0
P - Peak Flow
*
- value(s) provided from TR-55 system
routines

TABULAR HYDROGRAPH METHOD Version 2.10
Project johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked: Date:
Subtitle: basin
Total watershed area: 0.005 sq mi Rainfall type: II
-------------------------- Subareas ------
1
Area(sq mi) 0.01*
Rainfall(in) 5.5
Curve number 98*
Runoff(in) 5.26
Tc (hrs) 0.12*
(Used) 0.10
TimeToOutlet 0.00
Ia/P 0.01
(Used) 0.10
Frequency: 25 years
------------------
Time Total ------------- Subarea Contribution to Total Flow (cfs) ---
(hr) Flow 1
11.0 1 1
11.3 1 1
11.6 1 1
11.9 9 9
12.0 17 17
12.1 27P 27P
12.2 17 17
12.3 6 6
12.4 4 4
12.5 3 3
12.6 3 3
12.7 2 2
12.8 2 2
13.0 2 2
13.2 2 2
13.4 1 1
13.6 1 1
13.8 1 1
14.0 1 1
14.3 1 1
14.6 1 1
15.0 1 1
15.5 1 1
16.0 1 1
16.5 1 1
17.0 1 1
17.5 1 1
18.0 0 0
19.0 0 0
20.0 0 0
22.0 0 0
26.0 0 0
P - Peak Flow * - value(s) provided from TR-55 system routines

STORAGE
VOLUME FOR DETENTION BASINS
Version 2.10
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625
Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3-inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.30
Peak Outflow:
19 cfs
STORAGE
VOLUME FOR DETENTION BASINS
Version 2.10
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625
Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3
inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.40
Peak Outflow:
13 cfs
STORAGE
VOLUME FOR DETENTION BASINS
Version 2.10
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625
Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3
inches'
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.50
Peak Outflow:
9 cfs
STORAGE
VOLUME FOR DETENTION BASINS
Version 2.10
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area: .0050625 , Sq miles
Rainfall -Type: II
Runoff: 5.3 inches
Peak Inflow: 27.00 cfs
Detention Basin Storage Volume:
Rainfall Frequency: 25 years
0.60 Peak Outflow: 6 cfs

STORAGE VOLUME FOR DETENTION BASINS
Version 2.10
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625 Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3-inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.70
Peak Outflow:
4 cfs
STORAGE VOLUME FOR DETENTION BASINS
Version 2.10
Project : johson 2
User: tps
Date: 05-01-2006
County : gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625 Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3
inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.75
Peak Outflow:
3 cfs

Attachment C:
Engineering Alternatives Analysis

.74
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Subject: Johnson Mine #2.
From: Charles Gerstell <[e-mail]>
Date: Mon, 19 Jun 2006 12:37:15 -0400
To: zahid Khan <[e-mail]>
Zahid,.
I have performed a review of the additional information submitted for Johnson Mine
#2 in response to the routing form received by the. Central Office for the new mine
permit. The new mine map proposed only dredging the entire width of Dutchman's
Creek at those areas where the Johnson Property extends completely across the
creek. This seems to satisfy the comments addressed in the letter dated February
10, 2006 from the Central Office. However, actual dimensions for the proposed
sediment basin have not been provided. It also does not appear that settling
efficiency calculations were provided for the aforementioned basin. The engineer
states that the basin will have a weir length of 12 feet, but I could see no
calculations for the weir section. Another item of concern involves the proposed
disturbed area. On the mine map received by the Central Office on 12-14-05, a
permitted acreage of 11.89 acres and a disturbed area of 3.9 acres was proposed.
This map also proposed stockpile and haul roads on the east and west sides of
Dutchman's Creek. The new mine map eliminated the haul roads and stockpiles on the
east side of the creek, but the proposed disturbed area increased to 4.0 acres.
Judy calculated the reclamation bond as $4,600.00 which is shown on the letter
issued to Joe Carter from the Central Office on 9-16-05. The bond calculation
worksheet submitted with the new additional information calculates the reclamation
bond at $12,100.00. Due to the,increase, the change in disturbed area may not be of
great importance, but I feel we need to make sure the proposed disturbed area is
accurate to ensure proper evaluation in the field. Please let me know if you have
any questions regarding this matter.
Thanks,
C.T.
Charles Gerstell - [e-mail]
North Carolina Dept. of Environment & Natural Resources
Div. of Land Resources - Land Quality Section
610 E. Center Ave., Suite 301
Mooresville, NC 28115
Ph: [phone] Fax: [phone]
of 1 6/22/2006 11:14 AM

62,
ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY
3008 ANDERSON DRIVE, SUITE 102
RALEIGH, NC 27609
[phone]
June 8, 2006
Mr. Steve Chandler
Barringer Sand, LLC
2319 Crescent Ave.
Charlotte, NC 28207-1501
RE: Treatment System Design
And Engineering Alternatives Analysis
Johnson Mine No. 1
520 Woodlawn Ave.
Mount Holly, NC
Dear Mr. Chandler:
Engineering & Environmental Science Company (E2S) has completed the Treatment
System Design and the Engineering Alternatives Analysis for the above referenced site.
Following is a discussion of the project information and our evaluations.
GENERAL PROJECT INFORMATION
The Johnson Mine No. 1 will consist of dredging about 2250 linear feet of Dutchmans
Creek in Mount Holly, North Carolina (See Figure 1, Attachment A). The proposed mine
limits consists of 14.95 acres of land with up to 5.0 acres to be disturbed (includes stream
dredge limits and stockpile area).
The treatment process will be two sediment basins that will also be used for Erosion
Control Collection for the stockpile area (see separately submitted mine maps). No
processing of the sand on -site will be conducted except screening the wood from the
sand. This will be conducted as the material is discharged from the dredge. Alternatively,
the may be dry screened to remove the wood. The water transported with the sand during
dredging will be the only process water generated.. Approximately 1,300gallons of water
per minute could be discharged during the dredging operation. (Only one basin will be
operated at any given time.) Eight (8) hours of operation per day would result in 624,000
gallons per day of dredge generated water.

Page 2
Johnson Mine No. I
STREAM LOW FLOW CONDITIONS
The discharge from the basin will eventually discharge back to the stream, and no net
depletion of stream water will occur. Furthermore, due to the agitation of the water
during dredging, the oxygen level in the stream will be increased by these activities.
Therefore, the 7Q10 and 30Q2 flow statistics were not verified for this project.
BASIN SETTLEMENT TREATMENT EFFICIENCY
The predominantly sandy stream bed has at least 95% of the material retained on the No.
200 sieve (74 micron particle size). The basin has been designed (to include
consideration of the basin shape) to target the 30 micron size. Therefore, the basin
collection efficiency is at least 95% and more likely in the range of 99% (clays and fine
silts will not be collected by the basin (See Attachment B for calculations).
ALTERNATIVE ANALYSIS
From a technical standpoint, allowing the dredge water to be discharged back to the
stream is the most appropriate' alternative. No net water loss would occur for the stream
and the oxygen content would also be increased in the stream.
Non -discharge of the water was evaluated as an alternative for this project. The water
would be discharged as a spray irrigation system. A subsurface disposal system was not
considered as this type of system would cost more than the surface spray irrigation
system. Disposal to the local sewer system would not be allowed, because 624,000
gallons of water per day is the equivalent to 1300 — four bedroom homes. Due to tax
based considerations, it is unlikely that the local utility would allow the dredge water to
be discharged into their sewer system.
Attachment C contains the economic analysis for the spray irrigation system. Due to
erosion control and collection considerations, the basin is required even with the spray
irrigation system. Therefore, the basin is considered at no alternative cost for this
evaluation. For the land costs only, the initial costs would be $318,000.00 for the spray
irrigation system. Therefore, the sediment basin with discharge back to the stream is the
most economical alternative.
�2IS

Page 3
Johnson Mine No. 1
CLOSURE
We appreciate serving Barringer Sand on this project. Please contact us if you have any
questions.
_mac el6�y,;
atrick Singto .
President
Attachment A: Vicinity Map
Attachment B: Sediment Basin Design
Attachment C: Engineering Alternatives Analysis
�2�

Attachment A:
Vicinity Map
2S

Attachment B:
Sediment Basin Design
E21

. �' � � 4• mot' � L '�;� ,;�-,�'
2
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r•.
on
7�-� ../ ( 5�✓ JCS � + ✓t 0�' .':. �dlc.OJ'' %% ls'(.� � ,�
Ile
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- :�<,�� lri(+�I� � �1►�?fI� �I .r/lJ.,il� ��. �(.o •$aYl��•n.�d'� .'t! 7,�;wh
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Ot
%% A%ij d NwA p 7
d r // -A s 10---rVO-4

1 - .
E -
Fr
&A,
--•------
' `✓` /J4'$r� J u +—i'r.� — li[Y(�G1 ,�i �(i' / 'Q' y" � � �!?� —
74
:: �C/vG1 1, .�_ v�L.lW&V
Fall velocity, m/sec
6 8 10- � 2 3 4 6 8 10-1
Fall velocity. ft:sec
10 2 3 4 5 100
10:
;t
10'
1L
10-5
3 4 6 8 10-s 2 3 4 6 810-4 2 3 4 6 8
.00029
Fall velocity, m/see
Fig. 8.12 Particle settling velocity curves. (7)
See inset
t s 4 6 810-1 2 3

Appendices
20
15
10
8
=3 6
0
L
(nn 4
a� •
L
U
C
T 2
W
I
08
=° 0.6
Cz
04
•:
•
�■lll
1mm■�W■ENNE■1E'l
NMI
1■■■■,��.,,.,■■.
Uti■■■t�l�t�t�♦♦Ir•-t�t�t�t�t�t�t�t�t�
�►��
�■t�t+_�tit+•tit+_■t+_ta■t+•t�t+•�t+■t+_t+•
Emil
n
�MQ
\
5 10 20 40 60 2 . 3 4 6 8 12 18 24
Minutes Hours
Duration
Figure 8.03f Rainfall intensity duration curves —Asheville.
rry
L 4
rn
L
U
C
2
T
En
C
08
C ' 0.6
c
U 04
Cr
0.2
0.1
�I�l�v�■�1Y���■1Y
•
��■Nv���l������
\`wwt��
��N�■���\����NEW
Ell
mill
Kqq�
E
• 20 40 .•
Minutes Hours
Duration
Figure 8.03g Rainfall intensity duration curves —Charlotte.
8.03.7

0
Table 8.03a
Value of Runoff Coefficient
(C) for Rational Formula
Land Use
Business:
Downtown areas
Neighborhood areas
Residential:
Single-family areas
Multi units, detached
Multi units, attached
Suburban
Industrial:
Light areas
Heavy areas
Parks, cemeteries
Playgrounds
Railroad yard areas
Unimproved areas
Streets:
Asphalt
Concrete
Brick
Drives and walks
Roofs
C«
0.70-0.95
0.50-0.70
0.30-0.50
0.40-0.60
0.60-0.75
0.25-0.40
0.50-0.80
0.60-0.90
0.10-0.25
0.20-0.35
0.20-0.40
0.10-0.30
0.70-0.95
0.80-0.95
0.70-0.85
0.75-0.85
0.75-0.85
Land Use
C
Lawns:
Sandy soil, flat, 2%
0.05-0.10
Sandy soil, ave., 2-7%
0.10-0.15
Sandy soil, steep, 7%
0.15-0.20
Heavy soil, flat, 2% '
0.13-0.17
Heavy soil, ave., 2-7%
0.18-0.22
Heavy soil, steep, 7%
0.25-0.35
Agricultural land:
Bare packed soil
Smooth
0.30-0.60
Rough
0.20-0.50
Cultivated rows
Heavy soil no crop
0.30-0.60
Heavy soil with crop
0.20-0.50
Sandy soil no crop
0.20-0.40
Sandy soil with crop
0.10-0.25
Pasture
Heavy soil
0.15-0.45
Sandy soil
0.05-0.25
Woodlands
0.05-0.25
NOTE: The designer must use judgment to select the appropriate C value
within the range for the appropriate land use. Generally, larger areas'with
permeable soils, flat slopes, and dense vegetation should have lowest C
Values. Smaller areas with slowly permeable soils, steep slopes, and
sparse vegetation should be assigned highest C values.
Source: American Society of Civil Engineers
The overland flow portion of flow time may be determined from Figure 8.03a.
The flow time (in minutes) in the channel can be estimated by calculating the
average velocity in feet per minute and dividing the length (in feet) by the
average velocity.
Step 4. Determine the rainfall intensity, frcqucncy, and duration (Figures 8.03b
through 8.03g—source: North Carolina State Highway Commission; Jan.
1973). Select the chart for the locality closest to your location. Enter the
"duration" axis of the chart with the calculated time of concentration, TC. Move
vertically until you intersect the curve of the appropriate design storm, then
move horizontally to read the rainfall intensity factor, i, in inches per hour.
Step 5. Determine peak discharge, Q (ft3/sec), by multiplying the previously
determined factors using the rational formula (Sample Problem 8.03a).
8.03.2

Attachment C:
Engineering Alternatives Analysis
�2�

i
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if
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- !/1��/ �J�n Gjll% � .:, � J ,rl�"!�/ Ella � i1d..

ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY
3008 ANDERSON DRIVE, SUITE 102
RALEIGH, NC 27609
[phone]
June 8, 2006
Mr. Steve Chandler
Barringer Sand, LLC
2319 Crescent Ave.
Charlotte, NC 28207-1501
RE: Treatment System Design
And Engineering Alternatives Analysis
Johnson Mine No. 2
520 Woodlawn Ave.
Mount Holly, NC
Dear Mr. Chandler:
Engineering & Environmental Science Company (E2S) has completed the Treatment
System Design and the Engineering Alternatives Analysis for the above referenced site.
Following is a discussion of the project information and our evaluations.
GENERAL PROJECT INFORMATION
The Johnson Mine No. 2 will consist of dredging about 750 linear feet of Dutchmans
Creek in Mount Holly, North Carolina (See Figure 1, Attachment A). The proposed mine
limits consists of 11.89 acres of land with up to 4.0 acres to be disturbed (includes stream
dredge limits and stockpile area).
The treatment process will be a sediment basin that will also be used for Erosion Control
Collection for the stockpile area (see separately submitted mine maps). No processing of
the sand on -site will be conducted except screening the wood from the sand. This will be
conducted as the material is discharged from the dredge. Alternatively, the may be dry
screened to remove the wood. The water transported with the sand during dredging will
be the only process water generated.. Approximately 1,300gallons of water per minute
could be discharged during the dredging operation. Eight (8) hours of operation per day
would result in 624,000 gallons per day of dredge generated water.

ti
Page 2
Johnson Mine No. 2
STREAM LOW FLOW CONDITIONS
The discharge from the basin will eventually discharge back to the stream, and no net
depletion of stream water will occur. Furthermore, due to the agitation of the water
during dredging, the oxygen level in the stream will be increased by these activities.
Therefore, the 7Q10 and 30Q2 flow statistics were not verified for this project.
BASIN SETTLEMENT TREATMENT EFFICIENCY
The predominantly sandy stream bed has at least 95% of the material retained on the No.
200 sieve (74 micron particle size). The basin has been designed (to include
consideration of the basin shape) to target the 10 — 12 micron size. Therefore, the basin
collection efficiency is at least 95% and more likely in the range of 99% (clays and fine
silts will not be collected by the basin (See Attachment B for calculations).
ALTERNATIVE ANALYSIS
From a technical standpoint, allowing the dredge water to be discharged. back to the
stream is the most appropriate alternative. No net water loss would occur for the stream
and the oxygen content would also be increased in the stream.
Non -discharge of the water was evaluated as an alternative for this project. The water
would be discharged as a spray irrigation system. A subsurface disposal system was not
considered as this type of system would cost more than the surface spray irrigation
system. .Disposal to the local sewer system would not be allowed, because 624,000
gallons of water per day is the equivalent to 1300 — four bedroom homes. Due to tax
based considerations, it is unlikely that the local utility would allow the dreged water to
be discharged into their sewer system.
Attachment C contains the economic analysis for the spray irrigation system. Due to
erosion control and collection considerations, the basin is required even with the spray
irrigation system. Therefore, the basin is considered at no alternative cost for this
evaluation. For the land costs only, the initial costs would be $318,000.00 for the spray
irrigation system. Therefore, the sediment basin with discharge back to the stream is the
most economical alternative.
e2,

Page 3
Johnson Mine No. 2
CLOSURE
We appreciate serving Barringer Sand on this project. Please contact us if you have any
questions.
Since ely� t
atnck Shillm on E.
President
Attachment A: Vicinity Map
Attachment B: Sediment Basin Design
Attachment C: Engineering Alternatives Analysis
�23

Attachment A:
Vicinity Map
�2S

Attachment B:
Sediment Basin Design
�23

..............
(4 41,e W I a
... ... ----------- ...... .. - --------
...... ...... ------------
7
.... ..........
........ . .
..... . . ......
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rov e
........... I A —�Yk —I
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it ,4
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oe

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..........
.. ... .... ........ . . ......
a v
..........
Ole
.. ....... ..
Fall velocity, m/sec
6 8 10-' 2 3 4 6 810-2
Fall velocity. ft!sec See inset ..... ......
10' ' 2 3 4 5 100
10; - j 100
101
a
100
1 0-1
I-E
0.02
0-2
10-5 10 4 10-3 — 10-3
L 009 10-1 10-1 100
"e)31)all v 'docity, fl/sec
3 4
6 8 10-5 2 3 4 6 810- . 4 2 3 4 6 8 10-3 2 3 4 6 8 10-2 2 3 4 6 810-1 2 3
00029
Fall velocity, misec
Fig. 8.12 Particle settlins, vol„ ;t- --- f"i

OD T
p lG
W �
H LD
A 00
6
w
X
N
(n
D)
CD
n.
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0
n
V
25-year 1 day precipitation (inches)
Sale In MII„
0 25 .50 75 100
RAINFALL DATA MAP
6
5 5.5 6 5.5 6 6.S T
I 1AAA
GATES
5 r". ` $TOKFS� OCNINGNA 5WELL, ON.
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10-year 1 day precipitation (inches)
Scale In Mlles
0 25 So 75 100
RAINFALL DATA MAP
4.6 4.8
5 5.2 SA 5.6 5.8
— -- — I -- — -- —
\lf C-. SIOKES EHTIUR '
GATES
.SHE '^ SURR ROCKING, NIC.SWELLIPERSO r ram, WARP
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RAINFALL DATA MAP
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RUNOFF
CURVE NUMBER COMPUTATION
Version 2.10
Project
johson 2
User: tps
Date: 05-01-2006
County
gaston
State: nc Checked:
Date:
Subtitle:
basin
Subarea :
-------------------------------------------------------------------------------
1
Hydrologic
Soil Group
COVER DESCRIPTION
A B
C D
-------------------------------------------------------------------------------
Acres
(CN)
FULLY DEVELOPED URBAN AREAS (Veg Estab.)
Impervious Areas
Paved parking lots, roofs, driveways
Total Area (by Hydrologic Soil Group)
3.24(98)
3.24
------------------------------------------------------------------------------
SUBAREA: 1 TOTAL DRAINAGE AREA: 3.24 Acres WEIGHTED CURVE NUMBER: 98
TIME OF CONCENTRATION AND TRAVEL TIME Version 2.10
Project johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked: Date:
Subtitle: basin
Subarea #1 - 1
Flow Type 2 year Length Slope Surface n Area Wp Velocity "Time
rain (ft) (ft/ft) 'code (sq/ft) (ft) (ft/sec) (hr)
- -----------------------------------------------------------------------------
Sheet 3.5 300 0.04 b 0.118
Time of Concentration = 0.12*
--- Sheet Flow Surface Codes ---
A Smooth Surface F Grass, Dense
B Fallow (No Res.) G Grass, Burmuda
C Cultivated < 20 % Res. H Woods, Light
D Cultivated > 20 % Res. I Woods, Dense
E Grass -Range, Short J Range, Natural
* - Generated for use by TABULAR method
--- Shallow Concentrated ---
--- Surface Codes ---
P Paved
U Unpaved

TABULAR HYDROGRAPH METHOD Version 2.10
Project johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked: Date:
Subtitle: basin
Total watershed area: 0.005 sq mi Rainfall type: II Frequency: 10 years
-------------------------- Subareas
1
Area(sq mi). 0.01*
Rainfall(in) 5.0
Curve number 98*
Runoff(in) 4.76 Ifi�yd�.
Tc (hrs) 0.12*
(Used) 0.10
TimeToOutlet 0.00 %
Ia/P 0.01
(Used) 0.10
Time
Total -------------
Subarea Contribution to Total Flow (cfs)------------
(hr)
Flow
1
11.0
1
1
11.3
1
1
11.6
1
1
11.9
8
8
12.0
16
16
12.1
24P
24P
12.2
15
15
12.3
5
5
12.4
4
4
12.5
3
3
12.6
3
3
12.7
2
2 .
12.8
2
2
13.0
2
2
13.2
1
1
13.4
1
1
13.6
1
1
13.8
1
1
14.0
1
1
14.3
1
1
14.6
1
1
15.0
1
1
15.5
1
1
16.0
1
1
16.5
1
17.0
0
17.5
0
18.0
0
19.0
0
20.0
0
22.0
0
26.0
0 .
P - Peak
Flow
1
0
0
0
0
0
0
0
* - value(s) provided from TR-55 system routines

TABULAR HYDROGRAPH METHOD Version 2.10
Project johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked: Date:
Subtitle: basin
Total watershed area: 0.005 sq mi Rainfall type: II Frequency: 25 years
-------------------------- Subareas --------------------------
1
Area(sq mi) 0.01*
Rainfall(in) 5.5
Curve number 98*
Runoff(in) 5.26
Tc (hrs) 0.12*
(Used) 0.10
TimeToOutlet 0.00
Ia/P 0.01
(Used) 0.10
Time
Total -------------
Subarea Contribution to Total Flow (cfs)------------
(hr)
Flow
1
11.0
1
1
11.3
1
1
11.6
1
1
11.9
9
9
12.0
17
17
12.1
27P
27P
12.2
17
17
12.3
6
6
12.4
4
4
12.5
3
3
12.6
3
3
12.7
2
2
12.8
2
2
13.0
2
2
13.2
2
2
13.4
1
1
13.6
1
1
13.8
1
1
14.0
1
1
14•.3
1
1
14.6
1
1
15.0
1
1
15.5
1
1
16.0
1
1
16.5
1
1
17.0
1
1
17.5
1
1
18.0
0
0
19.0
0
0
20.0
0
0
22.0
0
0
26.0
0
0
P - Peak Flow
* - value(s) provided from TR-55 system routines

STORAGE
VOLUME FOR
DETENTION BASINS
Version 2.10
Project : johson 2
User: tps
Date: 05-01-2006
County : gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625
Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3-inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.30
Peak Outflow:
19 cfs
STORAGE
VOLUME FOR
DETENTION BASINS
Version 2.10
Project : johson 2
User: tps
Date: 05-01-2006
County :.gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625 Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3
inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.40
Peak Outflow:
13 cfs
STORAGE VOLUME FOR DETENTION BASINS
Version 2.10
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area: .0050625 Sq miles Rainfall Frequency: 25 years
Rainfall -Type: II
Runoff: 5.3 inches
Peak Inflow: 27.00 cfs
Detention Basin Storage Volume: 0.50 Peak Outflow: 9 cfs
STORAGE VOLUME FOR DETENTION BASINS
Version 2.10'
Project johson 2
User: tps
Date: 05-01-2006
County gaston
State: nc
Checked:
Date:
Subtitle: basin
Drainage Area:
.0050625 Sq miles
Rainfall Frequency:
25 years
Rainfall -Type:
II
Runoff: 5.3
inches
Peak Inflow:
27.00 cfs
Detention Basin
Storage Volume: 0.60
Peak Outflow:
6 cfs

STORAGE VOLUME FOR DETENTION BASINS Version 2.10
Project: johson 2 User: tps Date: 05-01-2006
County gaston State: nc Checked: Date:
Subtitle: basin
Drainage Area: .0050625 Sq miles Rainfall Frequency: 25 years
Rainfall -Type: II
Runoff: 5.3 inches
Peak Inflow: 27.00 cfs
Detention Basin Storage Volume: 0.70 Peak Outflow:
STORAGE VOLUME FOR DETENTION BASINS
Project johson 2 User: tps
County gaston State: nc Checked:
Subtitle: basin
Drainage Area: .0050625 Sq miles
Rainfall -Type: II
Runoff: 5.3 inches
Peak Inflow: 27.00 cfs
Detention Basin Storage Volume:
4 cfs
Version 2.10
Date: 05-01-2006
Date:
Rainfall Frequency: 25 years•
0.75 Peak Outflow: 3 cfs

Attachment C:
Engineering Alternatives Analysis
�2�

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