NCG140410_COMPLETE FILE - HISTORICAL (CHECK ORIGINAL FILE)_20170628

PERMIT NO.
DOC TYPE
DOC DATE
STORMWATER DIVISION CODING SHEET
NCG PERMITS
14 d 4- l U
HISTORICAL FILE
MONITORING REPORTS
❑ a7Q I r7
YYYYMMDD

STORMWATER DIVISION CODING SHEET
NCG PERMITS
i
i
PERMIT NO. /V
DOC TYPE HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE ❑
YYYYMMDD

F,
nI
Division of Energy, Mineral & Land Resources
1
Land Quality uality Section/Stormwater Permitting
NCDENR
National Pollutant Discharge Elimination System
�oN—K—C-
PERMIT NAMEIOWNERSHIP CHANGE FORM
FOR AGENCY USE ONLY
Date Received
Year
I Month
Day
I. Please enter the permit number for which the change is requested.
NPDES Permit (or) Certificate of Coverage
N 10, 1 $ 16. 1 1 1 1 1 1 1 N G 1 Q. 1 14 1 0 4 1 0
II, Permit status prior to requested change.
a. Permit issued to (company name): Kerr's HRM Concrete - Morganton Plant
b. Person legally responsible for permit: Roger Kerr
First M l Last
President
RECEIVED
JUN 2, 8 7ii i!
CENTRAL FILES
17WR SECTION
c. Facility name (discharge):
d. Facility address:
e. Facility contact person:
Title
P.O. Box 1924
Permit Holder Mailing Address
Hickory U.C. 28603
City State Zip
(828 ) 322-3157
Phone Fax
108 Industrial Blvd
Address
Morganton NC 28655
City Slate Zip
Robert- C',anipe (829 ) 322-3151
First 1 MI 1 Last Phone
Ill. Please provide the following for the requested change (revised permit).
a. Request for change is a result of: E Change in ownership of the facility
❑ Name change of the facility or owner
If other please explain:
b. Permit issued to (company name):
c. Person legally responsible for permit
d. Facility name (discharge):
e. Facility address:
f. Facility contact person:
Southern Concrete Materials
James
First
Combest
M 1 Last
President
Title
P4 Box 5395
Permit Holder Mailing Address
Asheville NC 28813
City
[phone]
State Zip
icombest@,scmusaxom
Phone
E-mail Address
Address
City
State Zip
First MI Last
Phone E-mail Address
1V. Permit contact information (if different from the person legally responsible for the permit)
Revised Jan. 27, 2014

NPDES PERMIT NAME/OWNERSHIP CHANGE FORM
Page 2 of 2
Permit contact: Jeff Lamm
First Mt Last
V -Environmental And Safety
Title
PO Box 5395 /
Mailing Address
Asheville NC 28813
City State Zip
�[phone] ilamm(o),scmusa.com
Phone E-mail Address
V. Will the permitted facility continue to conduct the same industrial activities conducted prior
to this ownership or name change?
® Yes
❑ No (please explain)
VI. Required Items: THIS APPLICATION WILL BE RETURNED UNPROCESSED IF ITEMS
ARE INCOMPLETE OR MISSING:
❑ This completed application is required for both name change and/or ownership change
requests.
❑ Legal docutnentation of the transfer of ownership (such as relevant pages of a contract deed,
or a bill of sale) is required for an ownership change request. Articles of incorporation are
not sufficient for an ownership change.
The certifications below must be completed and signed by both the permit holder prior to the change, and
the new applicant in the case of an ownership change request. For a name change request, the signed
Applicant's Certification is sufficient.
PE ITTEE CERTIFICATION (Permit holder prior to ownership change):
I, , attest that this application for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. I understand that if all required parts of this application are not
completed and that if all required supporting information is not included, this application package will be
returned as ' complete.
//_ 2� /%
Signature Date
APPLICANT CERTIFICATION
attest that this application for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. I understand that if all required parts of this application are not
complet at if all required supporting information is not included, this application package will be
Date
PLEASE SEND THE COMPLETE APPLICATION PACKAGE TO:
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Revised Jan. 27, 2014

RECEIVED
1UN Q 5 2017
S�ENR-LAND QUALITY
ASSET PURCHASE AGREEMENT TORMWgTER PERMITTING
by and among
SOUTHERN CONCRETE MATERIALS, INC., it successors, assigns or affiliates,
KERR SAND COMPANY, LLC,
KERR'S HICKORY READY -MIXED CONCRETE COMPANY, INC.,
and
ROGER S. KERR, JAMES P. KERR, JR., KATRINA K. HAYES, and MARY K.
LUCKADOO
March 27, 2017

ASSET PURCHASE AGREEMENT
THIS ASSET PURCHASE AGREEMENT (together with all Schedules and
Exhibits hereto, this "Agreement"), dated as of March 27, 2017, is entered into by and among
SOUTHERN CONCRETE MATERIALS, INC., a North Carolina corporation having its principal
office at 120 '/z N. Church St., Salisbury, NC 28144, or its successors, assigns or affiliates
(collectively, "Buyer"), KERR'S HICKORY READY -MIXED CONCRETE COMPANY, INC.,
an North Carolina corporation having its principal office at 1126 1" Ave. SW, Hickory, NC 28602
("Kerr's HRM"), KERR SAND COMPANY, LLC, a North Carolina limited liability company
having its principal office at 17 12" St. SW, Hickory, NC 28602 ("Kerr Sand" and, together with
Kerr's HRM, "Seller"), and Roger S. Kerr ("Roger"), James P. Kerr, Jr. ("James ), " Katrina K.
Hayes ("Katrina") and Mary K. Luckadoo ("Marv"). Roger and James are sometimes collectively
referred to herein as "Sellingpals." Roger, James, Katrina and Mary are sometimes
collectively referred to herein as "Selling Owners." Seller and Selling Owners are sometimes
collectively referred to herein as "Selling Parties." The parties to this agreement are sometimes
referred to herein individually as a "Party" or collectively as the "Parties."
RECITALS;
Subject to the terms and conditions of this Agreement, Buyer has agreed to purchase from
Seller, and Seller has agreed to sell to Buyer, Seller's ready -mixed concrete business and related
assets as set forth herein (the "Business") for the consideration described herein.
ARTICLE l
SALE AND PURCHASE OF ASSETS
1.1 Transfer of Assets. Seller agrees to sell, assign, transfer and deliver to
Buyer, and Buyer agrees to purchase and accept from Seller, at the Closing (as defined below) all
of the assets and properties of Seller of every kind and description used by Seller in connection
with the operations of the Business, but excluding certain assets described in Section 1.3. The
assets being sold hereunder are collectively referred to as the "Purchased Assets," and the assets
described in Section 1.3 are collectively referred to as the "Excluded Assets."
1.2 Purchased Assets. The Purchased Assets specifically include, but are not
limited to, the following:
(a) Real Propertly.. All real property and interests therein held, owned,
leased, subleased, licensed or otherwise occupied or used by Seller (with all easements and
other rights appurtenant to such property, the "Real Pro ert").
(b) Tangible Personal Property. All machinery, equipment, furniture,
office equipment, supplies, materials, vehicles and other items of tangible personal
property of every kind owned by Seller and used in connection with the Business,
including, without limitation, those listed on Schedule 1.2(b) (the "Tangible Personal
Property"), and any additions or replacements made between the date of this Agreement
and the Closing Date, together with any express or implied warranty by the manufacturers
or sellers of any item thereof.
2

(c) Inventories. Except as determined by Buyer in its sole discretion
pursuant to Section 2.4, all inventories of the Business as of the Effective Time (defined
below) including, without limitation, all finished goods, work in process, raw materials and
spare parts (the "Inventory"), the location and net values of which are included on Schedule
1.2(c).
(d) Contracts. All of Seller's interest in the contracts, leases of personal
property, other leases and other agreements described on Schedule l .2(d) (the "Contracts").
(e) Intellectual Property. All of the intellectual property of Seller used
in connection with the operations of the Business, including, without limitation, the
following: (a) all trademarks, service marks, trade names, logos (the "Marks") and all
registrations relating thereto; (b) all copyrighted works and registrations therefor; (c) all
patents and applications therefor; and (d) all confidential or proprietary processes,
formulas, trade secrets and technical and other similar information, all of which are
described on Schedule 1.2(e) (the "Intellectual Property"), together with the goodwill
related thereto and any royalty income therefrom accruing after the Effective Time.
(f) Permits. All permits, authorizations, certificates, approvals and
licenses relating to the operation of the Business, including, without limitation, those listed
on Schedule 1.2(f) (the "Permits").
(g) Records_ All records, technical data, asset ledgers, books of
account, inventory records, budgets, customer and supplier records, payroll and personnel
records, computer programs, correspondence and other files of Seller created or maintained
in connection with the Business.
(h) Claims. Ali of Seller's rights to any causes of action or claims
arising in connection with the Business.
(i) Goodwill. Any and all of Seller's goodwill in and going concern
value of the Business.
0) Other Assets. Ali other assets of any kind or description, tangible or
intangible, which are owned by Seller and used in or relate to the operations of the
Business.
In addition to the foregoing, Selling Principals shall sell, assign, transfer and convey to
Buyer, and Buyer shall purchase, acquire and accept from Selling Principals, free and clear of all
Liens and encumbrances, all of Selling Principals', right, title and interest in and to their own
general know-how and personal goodwill associated with the Business (the "Personal
Intangibles
1.3 Excluded Assets. The following assets shall be excluded from the
Purchased Assets and shall be retained by Seller:
(a) Cash. All cash on hand and on deposit in banks, cash equivalents
and investments.

IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to be
signed by its duly authorized officer as of the date first above written.
Buyer:
SOUTHERN CONCRETE MATERIALS, INC.
By:
Name:
Tine:
Sellers:
KERR'S HICKORY READY -MIXED
CONCRETE COMPANY, INC.
By:
Name: fi��t
Title: �/ese
KERB SAND COMPANY, LLC
By: � 21u
Nam �-.'ntel i0 r'
Title: 77c7ber-
Selling Owners,
Rod r S. Kerr
Signature Page to Asset Purchase Agreement

IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to be
signed by its duly authorized officer as of the date first above written.
Buyer:
MATERIALS, INC.
Titl
Sellers:
KERR'S HICKORY READY -MIXED
CONCRETE COMPANY, INC.
By:
Name:
Title:
KERR SAND COMPANY, LLC
B v: _
Name:
Title:
Selling Owners:
Roger S. Kerr
.tames P. Kerr, Jr.
Katrina K. Hayes
Mary K. Luckadoo
Signature Page to Asset Purchase Agreement

PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secrefary
Environmental
Quality
.Tune 8, 2016
Mr. Robert C. Canipe, Jr.
Manager
Kerr's FIRM Concrete Co., Inc.
Post Office Box 1924
Hickory, NC 28603
Subject: Multimedia Compliance Inspection
KERR CONCRETE-MORGANTON
Burke County
Dear Permittee:
Department of Environmental Quality staff from the Asheville Regional Office conducted a multimedia
compliance inspection of Kerr Concrete Morganton Plant on April 21, 2016 for permits and programs
administered by the following Divisions:
Division of Air
Division of Energy,
Division of Water
Quality
Mineral, and Land
Resources
Resources
We appreciate your cooperation during the inspection and hope that you have enjoyed the benefit of our
initiative to provide a single inspector capable of handling multiple areas of environmental compliance at
your facility.
The results of each applicable inspection and any associated response actions or necessary corrective
measures are detailed in the inspection letters/reports attached to this. transmittal sheet. Please carefully
review the Compliance Inspection Report associated with the Stormwater/Wastewater Discharge for
the required actions needing your immediate attention.
If a Division report is not attached, you may assume compliance with that particular Division's rules and
regulations at the time of inspection. If you have any questions regarding this multimedia inspection, please
contact Brendan Davey at [phone] or [e-mail]. Thank you for your cooperation.
encl: Air Quality Inspection Report
Stormwater Compliance Inspection Report
cc: DAQ ARO Files
DEMLR ARO Files
D WR ARO Files
DWM ARO Files
State of North Carolina Environmental Quality
Asheville Regional Office ` 2090 U.S. Highway 70 1 Swannanoa, NC 28778
828 296 4500 T 928 299 7043 F

Permit: NCG140410
SOC:
County: Burke
Region: Asheville
Contact Person: Roger Kerr
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Compliance Inspection Report
Effective: 11/18/11 Expiration: 06/30/16 Owner: Roger Kerr
Effective: Expiration: Facility: Kerr's HRM Concrete Morganton Plant
108 Industrial Blvd
Morganton NC 28655
Title: Phone: [phone]
Certification:
Phone:
Inspection Date: 0412112016 Entry Time: 09 OOAM Exit Time: 01:OOPM
Primary Inspector: Linda S Wiggs ��/' „ / Phone: [phone] Ext.4653
Secondary Inspector(sj:
Fred Walker
Richard Morris
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Ready Mix Concrete StormwaterlWastewater Discharge COC
Facility Status: El Compliant 0 Not Compliant
Question Areas:
Storm Water
(See attachment summary)

Parmrt: NCG140410 Owner . Facility: Roger Kerr
Inspection Dale: 04f21120f6 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Present during the inspection were Robert Canipe and Tim Glazbrook with Kerr Concrete, Linda Wiggs with DWR, Stan
Aiken and Fred Walker with DEMLR and Richard Morris with DAQ. This inspection was performed as a multimedia
inspection. Note: this is the first inspection ever conducted for the stormwater permit NCG140410 at this Kerr facility.
Overall the layout, operation and maintenance of this facility are good, however there are items that need immediate
attention in order for the facility to come into compliance with the NCG140410 stormwater permit as discussed below in the
summary, as well as in the question area.
Stormwater Pollution Prevention Plan (SPPP or SWPP):
Part III 1-10: The SPPP appears to be a very good document put together for Kerr, however it has not been completely
implemented. It is a permit requirement and an essential Component for compliance that all aspects of the SPPP be
implemented. Please carefully review Permit NCG140D00 Part Ill 1-10 and the SPPP and implement all required items.
Some items are specifically noted below that need your attention.
1. Keep copy of SPPP onsite and update it annually.
2. Maintain all inspection records.
3. Develop and maintain log books for employee training.
4. Confirm that responsible parties and all signature pages are current.
5. Analyze site for spill and leak potential and keep emergency spill cleanup kits near area with high spill or leak
potential i,e. cargo containers that store the concrete additives.
6. Keep a list onsite of all detergents, additives, polymers, brighteners and any other solvent, cleaning agents, or
like chemicals used onsite with respective volumes and MSDS sheets (NCG140000 Part II Section B.9).
7. Revise the site map to clearly identify the required items (NCG140000 Part Ill.1.c.).
Analytical Monitoring: .
Part IV Section D: Analytical monitoring for process wastewater is required 4 times a year and shall be reported on the
Process Wastewater -Quarterly Discharge Monitoring Report form provided to Robert Canipe via email on 5/3/2016. This
requirement is noted in 9.2 of the Stormwater Pollution Prevention Plan (SPPP or SWPP).
Analytical monitoring has not been taking place. Kerr staff did not believe the basin ever discharged as it was designed to
hold a 100 year storm. Regardless, the discharge pipe is still to be evaluatedlinspected for any discharge; it no discharge
is observed then the permit requirement is to record `No Flow" and submit the Process Wastowater-Quarterly Discharge
Monitoring Report as required in Part V Section E. From this point forward Kerr staff have been instructed to check the
discharge pipe regularly to determine when discharges are taking place. Specifically, to observe the discharge pipe when
wastewater is being delivered to the basin and during rainfall events. If the basin is discharging analytical monitoring is to be
instituted immediately for at least 6 months per Part IV Section D Page 10 of 11.
Note: the most likely parameter to violate the effluent limit at a Ready Mix site is pH. pH adjustment options were
discussed briefly with Kerr staff. The pH meter Kerr staff have onsite was calibrated during the inspections and found to be
in good working order. Staff need to develop and maintain a log book for meter calibration.
Qualitative Monitoring:
Part IV Section C: Qualitative Monitoring is required twice a year at all outfalls and shall be reported on the Qualitative
Monitoring Report form provided to Robert Canipe via email on 5/312016. This requirement is also noted in 9.1; 3 of the
SPPP.
Two outfalls were observed during the inspection, one is the outfall from the basin, the other is on the south side of the
property where a discrete stormwater flow path had formed flowing into the adjacent wetland. Mr. Canipe and Kerr staff will
monitor this outfall immediately and mentioned that they wilt likely provide BMPs to disperse the flow and remove the
discharge to the wetland.
Secondary Containment/Spills:
The double walled petroleum tanks are acceptable as long as they are in good condition and a suitable spill kit specific to
this area is present. At the time of the inspection the spill kit for this area was ruined, it had gotten wet and spoiled. A new
spill kit is required, if one is not obtained immediately then secondary containment may be required in this area.
Pages 2

permit; NGGS 4000 owner - Faclilty: Roger Kerr
Inspection Flats: 0412tr20i6 Inspection Type, Cempliance Evaluation Reason for Visit: Routine
The shipping containers being used for chemical storage will not require secondary containment as long as the inside area
is provided with sufficient leak proofing to avoid liquid leaving the containers. Also a sufficient spill kit specific for this area
will be needed immediately. There was chemical residue noted in the pump/distribution area of the container; better
housekeeping and/or spill documentation is needed. Note SPPP 8.4 and Log C1 and C2 in Appendix C of the SPPP.
BMPs:
At the North end of the property there is a diversion swale directing water to the basin. This Swale needs to be reworked
and stabilized to allow for proper flows.
In the questions area NA stands for Not Applicable and NE stands for Not Evaluated.
Page: 3

Permit- NCG140410 owner - Facility: Roger Kerr
[napection nato: 002112016 Inspection Type : Compliance Evaluaton Reason for Visit: Routine
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ 110 ❑
Comment: Thefacihty has not been conducting Analytical monitodn .
The facility is required to observe the basin outfall as noted in the summary and institues the
required Analytical monitoring immediately.
See summate
Permit and Outfalia Yes No. NAB NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ❑ ■ ❑ ❑
# Were all outfalls observed during the inspection? ❑ ❑ ❑
# If the facility has representative outfail status, is it properly documented by the Division? ❑ ❑ ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ❑ ■ ❑ ❑
Comment: Two outfalls were observed during the inspection, one is the primary wastewater outfall from the
basin, the other is on the south side of the property where a discrete stormwater flow path had
formed flowing into the adlacent wetland. Mr. Canipe Land staff) will monitor all outfalls
immediately_ and will likely provide BMPs for the south side outfall to disperse flows and remove
the discharge to the wetland.
Qualitative Monitoring
Has the facility conducted its Qualitative Monitoring semi-annually?
Comment: Facility did not present proof of qualitative monitoring_
Part IV Section C:_Qualitative Monitoring is required twice a_ Year at all outfalls and shall be
reported on the Qualitative Monitoring Report form provided to Robert Canipe via email on
5/312016. This requirement is also noted in 9.1.3 and Log E4 in SPPP.
Stormwater Pollution Prgvontion Plan
Does the site have a Stormwater Pollution Prevention Plan?
# Does the Plan include a Geroral Location (USGS) map?
# Does the Plan include a `Narralive Description of Practices"?
# Does the Plan include a detailed site map including outfall locations and drainage areas?
# Does the Plan include a list of significant spills occurring during the past 3 years?
# Has the facility evaluated feasible alternatives to current practices?
# Does the facility provide all necessary secondary containment?
# Does the Plan include a BMP summary?
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
Yes No NA NE
❑■❑❑
Page: 4

Permit: NCG140410 Owner - Faellity: Roger Kerr
Inspection Date: 04121f2010 Inspection Type : Compliance Ev9luation
Stormwater Poltukion Prrjv_antion Plan
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
# Does the facility provide and document Employee Training?
# Does the Plan include a list of Responsible Party(s)?
Reason for Visit: Routine
Yes No NA NE
❑i❑❑✓
# Is the Plan reviewed and updated annually? ❑ N ❑ ❑ 'i
# Does the Plan include a Stormwater Facility Inspection Program? 0 ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? ❑ M ❑ ❑
Coirlment: Site map is present but lacking some Items.
Table 2 needs to be updated it is not completely accurate, i.e. Admixture tank area does not
have secondary containment, wastewater sampling is required at this site (Table mentions only
stormwate6.
Table 3 does not indicate training has taken place.
Last updated 20U.
The SPPP includes relevant Plans and inspection programs; however, there is no
documentation (eg. Log E1-3) that the required inspections, have taken place.
Overall it is a well developed plan, but the lack of documentation indicates it has not been fully
implemented.
Refer to summary.
Page: 5

NORTH CAROLINA DIVISION OF
AIR QUALITY
Inspection Report
Date: 04/26/2016
Facility Data
Kerr's HRM Concrete Co., Inc. - Morganton / Industrial Blvd,
108 Industrial Boulevard
Morganton, NC 28655
Lat: 35d 43.7720m Long: 81 d 44.7630m
SIC: 3273 / Ready -Mixed Concrete
NAICS: 32732 / Ready -Mix Concrete Manufacturing
Contact Data
Facility Contact Authorized Contact Technical Contact
Tim Glazebrooks Robert C. Canipe, Jr. Robert C. Canipe, Jr.
Plant Manager Manager Manager
(828) 322-315 �/ ! 828-312-0236 828-312-0236
Asheville Regional Office
Kerr s FIRM Concrete Co., Inc. - Morganton /
Industrial Blvd.
NC Facility ID�1200194
County/FIPS: Burke/023
Permit Data
Permit 09937 / R01
Issued 8/12/2013
Expires 7/31/2018
Classification Small
Permit Status Active
Current Permit Application(s) None
SIP
Program Applicability
Compliance Data
Comments:
• Inspection Date 04/21/2016
Inspector's Name Richard Morris
Inspector's Signature: (4er Operating Status Operating
Compliance Code Compliance - inspection
Action Code FCE
Date of Signature: On -Site Inspection Result Compliance
Total Actual emissions in TONS/YEAR:
TSP -
S02
NOX
VOC
CO
PM10
k HAP
2012
0.4600
---
---
---
---
0.2100
0.1290
Five Year Violation History: None
Date Letter Type Rule Violated
Performed Stack Tests since last FCE: None
Bate Test Results Test Methods)
Inspection Report:
Hip -hest HAP Emitted
Violation Resolution Date
Source(s) Tested
1) Location. Kerr's HRM Concrete Co., Inc. - Morganton is located at 108 Industrial
Blvd. in Morganton, NC. Burke County.

Directions: From Asheville, take 1-40 east to exit 100 (Jamestown exit). Turn left
(north). Go approximately 1 mile to Dixie Boulevard. Turn left onto Dixie
Boulevard, and go approximately 1 mile to intersection with Industrial Boulevard.
Torn right onto Industrial Boulevard, and the facility will be located on the right, just
before Hexion Specialty Chemicals.
2) Facility Overview: Kerr's HRM Concrete Co., Inc. - Morganton is a concrete batch
plant (120 cubic yards per hour maximum capacity) and was permitted to operate at
this site on September 24, 2008. Production began in March 2009. The company's
main office is located in Hickory, NC. Last compliance inspection was performed by
Richard Morris on July 9, 2015.
Safety: hearing protection, safety shoes
Pre -inspection Conference: On April 21, 2016, Richard Morris (NC DAQ), Linda
Wiggs (NC WQROS), Stan Aiken and Fred Walker (NC EMLR.LQ) met with the
compliance contact, Robert Canipe, Manager. Based on our conversation with him,
we discussed the following:
a) Verified the contacts based on >~ ACFINDER printout. Robert Canipe will
remain as authorized and technical contact. Plant manager Tim Glazebrooks
will become facility contact.
b) We were there by appointment as part of a multimedia inspection team to
inspect the facility according to their air and stormwater/wastewater general
permit. This is a new program begun this year by DEQ to facilitate timeliness
of inspections for facilities and to cross train inspectors in other disciplines of
environmental management.
c) Logbooks for cartridge filters are kept in main office. I reviewed the books
for all filters and found them current and up-to-date.
d) There have been no changes of permitted sources or additions since permit
issuance.
e) I discussed with Mr. Canipe about upcoming rules changes for permitting that
will affect their facility permit. NC DAQ is moving minimum permit
requirements from 5 tons potential emissions of any criteria pollutant to 25
tons actual combined emissions from any and all criterial pollutants. The
changes should be in place by this summer and his facility will receive notice
when and if they are exempt from requiring a NC air permit.
Process Description: (AP-42)
Concrete is composed essentially of water, cement, sand (fine aggregate), and coarse
aggregate. Coarse aggregate may consist of gravel, crushed stone, or iron blast furnace
slag. Some specialty aggregate products could be either heavyweight aggregate (of

barite, magnetite, limonite, ilmenitc, iron, or steel) or lightweight aggregate -(with sintered
clay, shale, slate, diatomaceous shale, perlite, vermiculite, slag, pumice, cinders, or
sintered fly ash). Concrete hatching plants store, convey, measure, and discharge these
constituents into trucks for transport to a job site. In some cases, concrete is prepared at a
building construction site or for the manufacture of concrete products such as pipes and
prefabricated construction parts. The raw materials can be delivered to a plant by rail,
truck, or barge. The cement is transferred to elevated storage silos pneumatically or by
bucket elevator. The sand and coarse aggregate are transferred to elevated bins by front
end loader, clam shell crane, belt conveyor, or bucket elevator. From these elevated bins,
the constituents are fed by gravity or screw conveyor to weigh hoppers, which combine
the proper amounts of each material. Truck mixed (transit mixed) concrete involves
approximately 75 percent of U. S. concrete hatching plants. At these plants, sand,
aggregate, cement, and water are all gravity fed from the weigh hopper into the mixer
trucks. The concrete is mixed on the way to the site where the concrete is to be poured.
Central mix facilities (including shrink mixed) constitute the other one-fourth of the
industry. With these, concrete is mixed and then transferred to either an open bed dump
truck or an agitator truck for transport to the job site. Shrink mixed concrete is concrete
that is partially mixed at the central mix plant and then completely mixed in a truck mixer
on the way to the job site. Dry batching, with concrete mixed and hauled to the
construction site in dry form, is seldom, if ever, used
Inspection:
On April 21, 2016, I, Richard Morris, Linda Wiggs (NC WQROS), Stan Aiken
and Fred Walker (NC EMLR.LQ) traveled to the facility to conduct a compliance
inspection. We arrived on site at 9:00 am and was on site for approximately 4
hours. Weather conditions at the time of the inspection were as follows:
temperature in the high 70s, clear skies and calm winds.
We toured the facility with Robert Canipe who explained the concrete batch
process to our group. We had arranged for a cement tanker to be on site so that
we could observe cement unloading to.silo. The tanker arrived on site shortly
before us and began pumping off at approximately 9:08 a. in.. We observed the
unloading of cement from the tanker at 11-13 psi into the split cement (2/3) and
flyash (1/3) storage silo (120 ton capacity) Emission Source ID ESI for
approximately 60 minutes. No visible emissions from the control device or
ductwork were observed during the unloading.
A cement pig is listed on the current permit, but is not presently located at this
facility. This cement pig is located here when large concrete pours are required
for bigger contracts.
3) Emission Source and Regulatory Review:
Permitted Sources are:
Emission Emission Source Control Control System
Source ID _. -- - - - - -Description - - -_.._..-...--...._._-.._._System CD_... _ _Description __...-_....-..-
I One concrete batch plant (120 cubic yards per hour maximum capacity) consisting of

Emission Emission Source
Source ID Description
IISI one split cement (2/3) and flyash (1/3) storage silo
_ ___I (120 ton capacity) -�
Control
System ID
CD1
Control System
Description - -
one cartridge
a filter--- gyp
(1,536 square feet of surface j
area
E53
one truck load -out operation^
ES4 Ione
_ _..._.. _ _.__...._
portable pig for cement storage (185 tons
maximum capacity)
_..__—. __-- -.._. ___....._..... __.._._._._...._ .._.. _..._.
ES2
[one weigh hopper (5 ton capacity)
CD2
one cartridge -type filter (35
square feet of surface area)
Insignificant Sources:
Source Exemption Source of Source of Title V
Reaulation TAPS? Pollutants?
II I - Sand and aggregate delivery to ground storage,
transfer to conveyor, and transfer to elevated storae
- Sand and aggregate weigh hopper
2Q `0102` 11 No ; Yes
2Q i0102 11 No i! Yes
Stipulation Review:
A.3 2D.0515 — Particulate Control. In compliance. Compliance with 2D
.0515 is indicated with bagfilter control.
A.4 2D.0521 — Visible Emissions Control. visible emissions from the
emission sources, manufactured after July 1, 1971, shall not be more than
20 percent opacity when averaged over a six -minute period, except that
six -minute periods averaging not more than 87 percent opacity may occur
not more than once once in any hour nor more than -four times in any 24-hour
period.
In Compliance. No visible emissions were observed during silo loading.
A.6 2D.0540 — Fugitive Dust Control. Permittee shall not cause or allow
fugitive dust emissions to cause or contribute to substantive complaints or
excess visible emissions beyond the property boundary. If substantive
complaints or excessive fugitive dust emissions from the facility are
observed beyond the property boundaries for six minutes in any one hour
(using Reference Method 22 in 40 CFR, Appendix A).
"Fugitive dust emissions" means particulate matter that does not pass
through a process stack or vent and that is generated within plant property
boundaries from activities such as: unloading and loading areas, process
areas stockpiles, stock pile working, plant parking lots, and plant roads
(including access roads and haul roads).
In compliance. Fugitive dust appeared to be adequately controlled on
site.

A.7 2D.0611 — Fabric Filter Requirements.
a. Insp
setion and Maintenance Requirements - To comply with the
provisions of this permit and ensure that emissions do not exceed
the regulatory limits, the Permittee shall perform, at a minimum,
an annual (for each 12 month period following the initial
inspection) internal inspection of each bagfilter system. In
addition, the Permittee shall perform periodic inspections and
maintenance.as recommended by the equipment manufacturer.
b Recordkeeping Requirements - The results of all inspections and
any variance from manufacturer's recommendations or from those
given in this permit (when applicable) shall be investigated with
corrections made and dates of actions recorded in a logbook.
Records of all maintenance activities shall be recorded in the
logbook. The logbook (in written or electronic format) shall be
kept on -site and made available to DAQ personnel upon request.
In compliance. The facility is performing, and documenting
weekly/monthly internal inspections. The last logbook entry was
annual internal inspection performed on 4/19/2016.
A.8 21).1100 — Toxic Air Emissions Limitation and Reporting. Pursuant to
15A NCAC 2D .1100 "Control of Toxic Air Pollutants," and in accordance with,
the approved application for an air toxic compliance demonstration, the
following permit limits shall not be exceeded:
Affected
�
Toxic Air Pollutant Emission Limit
Source(s)
Facility Wide
`genic & Compounds (total mass of elemental AS; arsine
inorganic I
0.04257 pounds
and all compounds) (ASC (7778394)) _
_per year_
a. Restrictions - To ensure compliance with the above limits, the following
restrictions shall apply:
concrete production• shall not exceed 87,000 cubic yards per
consecutive 12-month period.
ii_ the facility shall be constructed and operated in accordance with the
parameters established in the computer modeling results approved by
the Division of Air Quality on August 21, 2008.

b. Reporting Requirements - Within 30 days after each calendar year, regardless
of the actual emissions, the following shall be reported to the Regional
Supervisor, DAQ:
i. the monthly concrete production for the, previous calendar year; and
iithe total concrete production for the previous calendar year.
Recordkeeping Requirements - The Permittee shall record daily and total
monthly, the cubic yards of concrete produced. These records are to be kept'on
site for three years and made available to DAQ upon request.
In compliance. Annual report received by DAQ ARO on January 21, 2016
demonstrating compliance with production limit and monthly/yearly totals.
Reporting requirements:
Annual report required no Iaer than January 30 each calendar year. Report was
received January 21, 2016 indicating compliance.
4) Compliance History Review:
There have been no violations recorded in prior S years.
S) Stack Test Review:
Current permit contains no stack test requirements.
6) MR Status: Based on the facility's inventory, it was decided that they are not
subject to 112R reporting requirements
7) Comments and Compliance Statement:
Based on review of records and visual observations, this facility "appeared to be,
operating in compliance" with the Air Quality standards and regulations at the time of
this inspection,
/rem

NORTH CAROLINA DIVISION OF
AIR QUALITY
l Inspection Report
�} Date: 04/26/2016_
Facility Data
Kerr's HRM Concrete Co., Inc. - Morganton / Industrial Blvd.
108 Industrial Boulevard
Morganton, NC 28655
Lat: 35d 43.7720m Long: 81 d 44.7630m
SIC: 3273 / Ready -Mixed Concrete
NAICS: 32732 / Ready -Mix Concrete Manufacturing
IContact Data
Facility Contact Authorized Contact Technical Contact
Tim Glazebrooks
Plant Manager
[phone]
Comments:
Inspector's Signature:
Date of Signature:
Robert C. Canipe, Jr
Manager
828-312-0236
Robert C. Canipe, Jr.
Manager
828-312-0236
Asheville Regional Office
Kerr's FIRM Concrete Co., Inc. - Morganton /
Industrial Blvd.
NC Facility ID 1200194
County/FIPS: Burke/023
Permit Data
Permit 09937 / ROI
Issued 8/12/2013
Expires 7/31/2018
Classification Small
Permit Status Active
Current Permit Application(s) None
SIP
Program Applicability
Compliance Data
Inspection Date 04/21/2016
Inspector's Name Richard Morris
Operating Status Operating
Compliance Code Compliance - inspection
Action Code FCE
On -Site Inspection Result Compliance
II Total Actual emissions in TONSIYEAR: II
TSP
S02
NOX
VOC
CO
PM10
* HAP
2012
0.4600
---
---
---
---
0.2100
0.1290
Five Year Violation History: None
Date Letter Tyne Rule Violated
Performed Stack Tests since last FCE: None
Date Test Results Test Method(s)
Inspection Report:
* Highest HAP Emitted (in
Violation Resolution Date
Source(s) Tested
1) Location: Kerr's HRM Concrete Co., Inc. - Morganton is located at 108 Industrial
Blvd. in Morganton, NC. Burke County.

t
Directions: from Asheville, take 1-40 east to exit 100 (Jamestown exit). Turn left
(north). Go approximately I mile to Dixie Boulevard. Turn left onto Dixie
Boulevard, and go approximately 1 mile to intersection with Industrial Boulevard.
Turn right onto Industrial Boulevard, and the facility will be located on the right, just
before 1-lexion Specialty Chemicals.
2) Facility Overview: Kerr's I-IRM Concrete Co., Inc. - Morganton is a concrete batch
plant (120 cubic yards per hour maximum capacity) and was permitted to operate at
this site on September 24, 2008. Production began in March 2009. The company's
main office is located in Hickory, NC. Last compliance inspection was performed by
Richard Morris on July 9, 2015.
Safety: hearing protection, safety shoes
Pre -inspection Conference: On April 21, 2016, Richard Morris (NC DAQ), Linda
Wiggs (NC WQROS), Stan Aiken and Fred Walker (NC EMLR.LQ) met with the
compliance contact, Robert Canipe, Manager. Based on our conversation with him,
we discussed the following:
a) Verified the contacts based on FACFFNDER printout. Robert Canipe will
remain as authorized and technical contact. Plant manager Tim Glazebrooks
will become facility contact.
b) We were there by appointment as part of a multimedia inspection team to
inspect the facility according to their air and stormwater/wastewater general
permit. This is a new program begun this year by DEQ to facilitate timeliness
of inspections for facilities and to cross train inspectors in other disciplines of
environmental management.
c) Logbooks for cartridge filters are kept in main office. I reviewed the books
for all filters and found them current and up-to-date.
d) There have been no changes of permitted sources or additions since permit
issuance.
e) I discussed with Mr. Canipe about upcoming rules changes for permitting that
will affect their facility permit. NC DAQ is moving minimum permit
requirements from 5 tons potential emissions to 5 tons actual. The changes
should be in place by this summer and his facility will receive notice when
and if they are exempt from requiring a NC air permit.
Process Description: (AP-42)
Concrete is composed essentially of water, cement, sand (fine aggregate), and coarse
aggregate. Coarse aggregate may consist of gravel, crushed stone, or iron blast furnace
slag. Some specialty aggregate products could be either heavyweight aggregate (of
barite, magnetite, limonite, ilmenite, iron, or steel) or lightweight aggregate (with sintered

clay, shale, slate, diatomaceous shale, perlite, vermiculite, slag, pumice, cinders, or
sintered fly ash). Concrete hatching plants store, convey, measure, and discharge these
constituents into trucks for transport to a job site. In some cases, concrete is prepared at a
building construction site or for the manufacture of concrete products such as pipes and
prefabricated construction parts. The raw materials can be delivered to a plant by rail,
truck, or barge. The cement is transferred to elevated storage silos pneumatically or by
bucket elevator. The sand and coarse aggregate are transferred to elevated bins by front
end loader, clam shell crane, belt conveyor, or bucket elevator. From these elevated bins,
the constituents are fed by gravity or screw conveyor to weigh hoppers, which combine
the proper amounts of each material. Truck mixed (transit mixed) concrete involves
approximately 75 percent of U. S. concrete hatching plants. At these plants, sand,
aggregate, cement, and water are all gravity fed from the weigh hopper into the mixer
trucks. The concrete is mixed on the way to the site where the concrete is to be poured.
Central mix facilities (including shrink mixed) constitute the other one-fourth of the
industry. With these, concrete is mixed and then transferred to either an open bed dump
truck or an agitator truck for transport to the job site. Shrink mixed concrete is concrete
that is partially mixed at the central mix plant and then completely mixed in a truck mixer
on the way to the job site. Dry batching, with concrete mixed and hauled to the
construction site in dry form, is seldom, if ever, used
Inspection:
On April 21, 2016, I, Richard Morris, Linda Wiggs (NC WQROS), Stan Aiken
and Fred Walker (NC EMLR.LQ) traveled to the facility to conduct a compliance
inspection. We arrived on site at 9.00 am and were on site for approximately 4
hours. Weather conditions at the time of the inspection were as follows:
temperature in the high 70s, clear skies and calm winds.
We toured the facility with Robert Canipe who explained the concrete batch
process to our group. We had arranged for a cement tanker to be on site so that
we could observe cement unloading to silo. The tanker arrived on site shortly
before us and began pumping off at approximately 9:08 a. m.. We observed the
unloading of cement from the tanker at 11-13 psi into the split cement (2/3) and
flyash (1/3) storage silo (120 ton capacity) Emission Source ID ESI for
approximately 50 minutes. No visible emissions from the control device or
ductwork were observed during the unloading.
A cement pig is listed on the current permit, but is not presently located at this
facility. This cement pig is located here when large concrete pours are required
for bigger contracts.
3) Emission Source and Regulatory Review:
Permitted Sources are:
jEmission
Source ID J
Emission Source Control Control System
Description _System ID Description _ J
One concrete batch plant (120 cubic yards per hour maximum capacity) consisting of:

Emission Emission Source (
Control 11
Control System
Source ID _- Description
- --- - - _-- ___--
System ID
.............
Description
PSI } one split cement (2/3) and flyash (113) storage silo
f. (120 ton capacity) _ -- _ -
ES3out operation
CDl
one cartridge -type filter
(1,536 square feet of surface I
_ _�
'area)
'
E? 54
one portable pig for cement storage (185 tons
_maximum capacity)
f ES2
_
one weigh hopper (5 ton capacity)
- J
CD2
jsquare
one cartridge -type filter (35
feet of surface area)
Insignificant Sources:
_I
Source of `
Source of Title V
Source
LRe
-
gmption i
Regulation
TAI s.
Pollutants.
l - Sand and aggregate delivery to ground storage,
2Q .0102
transfer to conveyor, and transfer to elevated storage
---
(c)(2)(E)(i)
- -
No -�
- —Y
-es --
- -
2Q .0102 'F
7F
12 Sand and aggregate weigh hopper
c 2 E [
No
Yes
Stipulation Review:
A.3 2D.0515 — Particulate Control. In compliance. Compliance with 2D
.0515 is indicated with bagClter control.
A.4 2D.0521 — Visible Emissions Control. visible emissions from the
emission sources, manufactured after July 1, 1971, shall not be more than
20 percent opacity when averaged over a six -minute period, except that
six -minute periods averaging not more than 87 percent opacity may occur
not more than once in any hour nor more than four times in any 24-hour
period.
In Compliance. No visible emissions were observed during silo loading.
A.6 2D.0540 — Fugitive Dust Control. Permittee shall not cause or allow
fugitive dust emissions to cause or contribute to substantive complaints or
excess visible emissions beyond the property boundary. If substantive
complaints or excessive fugitive dust emissions from the facility are
observed beyond the property boundaries for six minutes in any one hour
(using Reference Method 22 in 40 CFR, Appendix A).
"Fugitive dust emissions" means particulate matter that does not pass
through a process stack or vent and that is generated within plant property
boundaries from activities such as: unloading and loading areas, process
areas stockpiles, stock pile working, plant parking lots, and plant roads
(including access roads and haul roads).
In compliance. Fugitive dust appeared to be adequately controlled on
site.

A.7 2D.0611 — Fabric Filter Requirements.
a. Inspection and Maintenance Requirements - To comply with the
provisions of this permit and ensure that emissions do not exceed
the regulatory limits, the Permittee shall perform, at a minimum,
an annual (for each 12 month period following the initial
inspection) internal inspection of each bagfilter system. In
addition, the Permittee shall perform periodic inspections and
maintenance as recommended by the equipment manufacturer.
b Recordkeeping Requirements - The results of all inspections and
any variance from manufacturer's recommendations or from those
given in this permit (when applicable) shall be investigated with
corrections made and dates of actions recorded in a logbook.
Records of all maintenance activities shall be recorded in the
logbook. The logbook (in written or electronic format) shall be
kept on -site and made available to DAQ personnel upon request.
In compliance. The facility is performing, and documenting
weekly/monthly internal inspections. The last logbook entry was
annual internal inspection performed on 4/19/2016.
A.8 2D.1100 —Toxic Air Emissions Limitation and Reporting. Pursuant to
15A NCAC 2D .1100 "Control of Toxic Air Pollutants," and in accordance with
the approved application for an air toxic compliance demonstration, the
following permit limits shall not be exceeded:
Affected —� Y Toxic Air Pollutant I Emission Limit
Source(s) I
Facility Wide Arsenic & Compounds (total mass of elemental AS, arsine 1 0.04257 pounds
and all inorganic compounds) (ASC (7778394)) _ per year
a. Restrictions - To ensure compliance with the above limits, the following
restrictions shall apply:
concrete production shall not exceed 87,000 cubic yards per
consecutive 12-month period.
ii. the facility shall be constructed and operated in accordance with the
parameters established in the computer modeling results approved by
the Division of Air Quality on August 21, 2008.

b. Reporting Requirements - Within 30 days after each calendar year, regardless
of the actual emissions, the following shall be reported to the Regional
Supervisor, DAQ:
the monthly concrete production for the previous calendar year; and
ii. the total concrete production for the previous calendar year.
Recordkeeping Requirements - The Permittee shall record daily and total
monthly, the cubic yards of concrete produced. 'I,hese records are to be kept on
site for three years and made available to DAQ upon request.
In compliance. Annual report received by DAQ ARO on January 21, 2016
demonstrating compliance with production limit and monthly/yearly totals.
Reporting requirements:
Annual report required no later than January 30 each calendar year. Report was
received January 21, 2016 indicating compliance.
4) Compliance History Review:
"There have been no violations recorded in prior S years.
5) Stack Test Review:
Current permit contains no stack test requirements.
6) 112R Status: Based on the facility's inventory, it was decided that they are not
subject to 112R reporting requirements
7) Comments and Compliance Statement:
Based on review of records and visual observations, this facility appeared to be
operating in compliance with the Air Quality standards and regulations at the time of
this inspection.
/rem

Facility: %r( `�Gf j�o �,,
Date:
Location Address: 1��
COC#:
Contact Name: ab� �r
Phone #:
Contact Mailing Address:
County:
Directions:
✓
Routine Compliance Inspection
Rescission Request
Complaint Investigation
Other - Explain:
A
Storm Water Pollution Prevention Plan
Yes
No
N/A
Comments
1
Is a copy of the permit and the Certificate of Coverage available
at the site?
2
Is a copy of the signed and certified SWPPP at the facility?
f
B
Does the Plan include a "Narrative Description of Practices"?
4
Does the plan include a general location (USGS) map?
5
Does the plan include a detailed site map including outfall
locations and drainage areas?
6
Does the plan include a Spill Prevention and Response Plan?
(SPRP
7
Does the plan include a Preventative Maintenance and Good
Housekeeping Plan?
8
Does the plan include a Stormwater Facility Inspection Program?
9 i
Does the Plan include a BMP Summary?
10
Does the plan include a list of Responsible Party(s)?
11
Has the SWPPP been implemented?
B
Monitoring and Records
Yes
No
N/A
1
Does the plan include a list of significant spills occurring during
the 2ast 3 ears?
2
Does the facility provide and document employee training?
3
Has the facility conducted its Qualitative Monitoring? (semi-
annual)
4
Has the facility conducted its Analytical Monitoring? (s-a).
5
Is the facility meeting all permit specified benchmark goals?
6
Ils the facility following the tiered response?
7
Has the facility conducted its Analytical Monitoring from vehicle
Maintenance areas?
C
Waste Management
Yes
No
N/A
1
Does the facility provide all necessary secondary containment?
x
2
Are current BMPs in material storage areas adequate?

3 Are appropriate spill containment and cleanup materials kept on- /
site and in convenient locations? % I
D Outfalls Yes No N/A
1 Were all outfalls observed during the inspection?
2 If the facility has representative outfall status, is it properly
documented by the Division?
3 Has the facility evaluated all illicit (non stormwater) discharges?
E Sector specific questions Yes No N/A
1 Have zinc or copper benchmarks been exceeded in the past 3
sampling periods?
2 Have potential sources for copper and zinc been evaluated at
your facility?
3
4
Comments
k
1�30 Sri - -�
R
C' JI i

�10
_�s
NORTH CAROL.INA DIVISION OF
Asheville Regional Office
AIR QUALITY Q�G�/ylofr,' } , A'
Kerr's HRM Concrete Co., Inc. - Morganton I
'' �` i is L`'�=1
Industrial Blvd.
Inspection Report `�`^ S % ��
NC Facility ID 1200194
Date: 07/1312015 y Z� i� �,��n.
County/FIPS: Burke/023
Facility Data
Permit Data
Kerr's HRM Concrete Co., Inc. - Morganton / Industrial Blvd.
Permit 09937 / R01
108 Industrial Boulevard
Issued 8/12/2013
Morganton, NC 28655
Expires 7/31/2018
Lat: 35d 43.7720m Long: 81 d 44.7630m
Classification Small
SIC: 3273 / Ready -Mixed Concrete
Permit Status Active
NAILS: 32732 / Ready -Mix Concrete Manufacturing
Current Permit Application(s) None
Program Applicability
SIP
Contact Data
Facility Contact
Authorized Contact
Technical Contact
Tzm Glaz �a wk,,
Robert C. Canipe, Jr.
Robert C. Canipe, Jr.
Robert C. Canipe, Jr.
Manager
Manager
Manager
[phone]
[phone]
[phone]
Compliance Data
Comments:
Inspection Date 07/09/2015 4(t►f tw
Inspector's Name Richard Morris
Inspector's Signature:
Operating Status Operating,/
Compliance Code Compliance - inspection/
Action Code FCE
Date of Signature:
On -Site Inspection Result Compliance
Total Actual emissions in TONS/YEAR:
TSP
S02
NOX
VOC CO
PM10 i * HAP
2012
0.4600
---
---
--- ---
02100
0.1290
* Highest HAP Emitted inpounds)
Five Year'Violal_iun History: None
Date Letter Tyne Rule Violated Violation Resolution Date
Performed Stack Tests since last FCE: None
Date Test Results Test Method(s) Source(s) Tested
Directions
From Asheville, take 1-40 east to exit 100 (Jamestown exit). Turn left (north). Go approximately
I mile to Dixie Boulevard. Turn left onto Dixie Boulevard, and go approximately I mile to
intersection with Industrial Boulevard Turn right onto Industrial Boulevard, and the facility will
be located on the right, just before Hexion Specialty Chemicals.
ry �

rl
Facility Overview
Safety Equipment: Safety Shoes and Hearing Protection. A safety vest, although not required,
may be advisable.
Facility Contacts:
Mr. Tim Glazebrooks is the Plant Manager for this site. The telephone number for this site is
[phone]. Mr. Robert Canipe is the Authorized, Facility and Technical Contact. An
alternative phone number for Mr. Canipe is 828-312-0236.
Facility Description:
This facility is a concrete batch plant (120 cubic yards per hour maximum capacity) and was
permitted to operate at this site on September 24, 2008. Production began in March 2009. The
company's main office is located in Hickory, NC.
Inspection Narrative
On July 9, 2015, 1, Richard Morris traveled to the facility to conduct a compliance inspection. I
arrived on site at 11:55 am and was on site for approximately 1 hour and 15 minutes. Weather
conditions at the time of the inspection were as follows: temperature in the high 80s, clear skies
and calm winds.
I met and toured the facility with Mr. Tim Glazebrooks is the Plant Manager for this site. The
telephone; number for this site is 828-584-2516. I also did a records review with Mr.
Glazebrooks `% c
The tanker a on site at approximately 1�. wn 0and began pumping off shortly after 1 '2-
arrived after I observedthe unloading of cement from the tanker at_lYl2'psi into the
split cement (2/3) and flyash (1/3) storage silo (120 ton capacity) Emission Source ID ESI for
approximately 30 minutes. No visible emissions from the control device or ductwork were'
observed during the unloading. A brief period of visible emissions was observed from the
tanker connection and connection hose that cement passes through to the silo. The tanker driver
stopped the visible emissions shortly after they began.
The truck load -out was observed in operation with no visible emission from most of the trucks
being loaded. Control System CD controls the truck load -out operation. The weigh hopper (5
ton capacity) was also observed in operation with no visible emission.
Inspection and Maintenance Logbook
The facility maintains a copy of their current permit on site. The facility is required by their air
permit to maintain a cartridge filter inspection and maintenance logbook for Control System ID
No. CDl (one cartridge -type filter (1,536 square feet of surface area) and CD2 (one cartridge -
type filter (35 square feet of surface area). The logbook was reviewed and found to adequate
and up to date. The facility is performing, and documenting weekly/monthly internal
inspections. The last iogbook entry was 6/4/2015.
I L I [,
l4Y) VN � t }r; q 'r
11 (z,

The following insignificant/exempt activities were in operation with no visible emissions: Source
I 1: Sand and aggregate delivery to ground storage, transfer to conveyor and transfer to elevated
storage and Source I2: Sand and aggregate weigh
Cement Pik
Cement pig has been removed from on site to another location.
No fugitive dust emissions were observed for the storage piles or roads, which are concrete.
There are no generators on site.
Record Keeping Requirement
The facility is required to record daily and total monthly the cubic yards of concrete produced.
These records are to be kept on site for three years. These records were reviewed and found to
be adequate and up to date.
Reporting Requirement
The facility is required to submit regardless of emissions an annual report on or before January
30 of each year. The report is to contain the monthly concrete production for the previous
calendar year and the total production for the previous year. 2014 Annual Report submitted by
the facility on January 15, 2015 and indicated that the facility had produced 17,199 cubic yards
of concrete in 2012.
Compliance History
• No violations in prior 5 years.
Conclusion
At the time of the inspection, the facility appeared to be in compliance with Air Permit
09937R01.

NORTH CAROLINA DIVISION OF
AIR QUALITY
Air Permit Review
Permit Issue Date: August 12, 2013
Facility Data
Applicant (Facility's Name): Kerr's Hickory Ready -Mixed Concrete Co., Inc. -
Morganton 1 Industrial Blvd.
Facility Address:
Kerr's FIRM Concrete Co., Inc. - Morganton 1 Industrial Blvd.
108 Industrial Boulevard
Morganton, NC 28655
SIC: 3273 / Ready -Mixed Concrete
NAICS: 32732 / Ready -Mix Concrete Manufacturing
Facility Classification: Before: Small After: Small
Fee Classification: Before: Small After: Small
Contact Data
Facility Contact
Robert C. Canipe, Jr.
Manager
[phone]
Post Office Box 1924
Hickory, NC 28603
Authorized Contact
Robert C. Canipe, Jr.
Manager
[phone]
Post Office Box 1924
Hickory, NC 28603
Review Engineer: Harold Brady
Review Engineer's Signature: Date:
1. Purpose of Application
Technical Contact
Region: Asheville Regional Office
County: Burke
NC Facility ID: 1200194
Inspector's Name: Angela Hopper
Date of Last Inspection: 08/24/2011
Compliance Code: 3 / Compliance - inspection
Permit Applicability (this application only)
Sill': Yes
NSPS: No
NESHAP: No
PSD: No
PSD Avoidance: No
NC Toxics: Yes
112(r): No
Other: NIA
Application Data
Application Number: 1200194.13A
Robert C. Canipe, Jr. Date Received: 05/28/2013
Manager Application Type: Renewal
[phone] Application Schedule: State
Post Office Box 1924 Existing Permit Data
Hickory, NC 28603 Existing Permit Number: 099371R00
I D 24
Existing Permit ssue ate. 09/ /2008
ExistingPermit Expiration Date: 08/31/2013
Comments / Recommendations:
Issue 09937/R01
Permit Issue Date: 08/12/2013
Permit Expiration Date: 07/31/2018
Application is made for the renewal of the facility's current air permit. The facility is a concrete batch plant rated at
120 cubic yards per hour. Note that the pig (ID No. ES4) is an existing piece of equipment, with no impact to
emissions and is added to the permit with this renewal. The facility is permitted for the following equipment with
the addition noted in italics:
Emission I Emission Source Control Control System
Source ID Description System ID " Description
One concrete batch plant (120 cubic yards per hour maximum capacity) consisting of:
__ W w....___._..___..... .
ESI ' one split cement (2/3) and flyash (1/3) storage i
silo (120 ton capacity) 6.!&,
- i one cartridge -type filter( 1,536
_ ES3 - on truck load-_out_operation _ _ CDI square feet of surface area)
ES4 one portable pig for cement storage (185 tons
maximum. capacity) �jt" - �.,

3.
4.
Kerr's Hickory Ready -Mix Concrete Co., Inc.
Permit Review
Page 2 of 4
Emission Emission Source Control Control System
I Source 11)1 Description — _J System ID Description
- --
I one cartr
ES2 one weigh hopper (5 ton capacity) CD2 idge-type filter (35
_� square feet of surface area)
Application Chronology
May 28, 2013: The application for renewal and 2012 emissions inventory were received and appeared complete.
Regulatory Review
This facility must comply with the followinp, EMC Re ulations for the u oses of this application:
15A NCAC 2D .0515, "Particulates from Miscellaneous Industrial Processes";
15A NCAC 2D .0521, "Control of Visible Emissions";
15A NCAC 2D .0540, "Particulates from Fugitive Dust Emission Sources";
15A NCAC 2D .061 1, "Monitoring Emissions from Other Sources";
15A NCAC 21) .1 100, "Control of Toxic Air Pollutants";
15A NCAC 2Q .0102, "Activities Exempted from Permit Requirements"; and
15A NCAC 2Q .071 1, "Emission Rates Requiring a Permit".
Compliance Determination
2D .0515 - Particulate I' -missions From Miscellaneous Industrial Processes
This regulation provides an allowable particulate emission rate based on a process weight rate. The allowable
particulate emission rate for process rates greater than 30 tons per hour is calculated as:
E = 55.0(P)01 - 40
where: P — process rate (tonslhr)
E = allowable emission rate (]Whr).
The AP-42, Table l 1.12-2 lists the following emission factors for various processes at concrete batch plants:
Process
Emission Factor. (pounds of emissions per ton,of material -loaded)
Uncontrolled
Controlled.
PM;
PM10
PM
PM10
Pneumatic Loading of Cement Silo
0.73
0.46
0.00099
0.00034
Pneumatic Loading of Supplement
Flyash) Silo
3.14
1.10
0.0089
0.0049
Weigh Hopper Loading
0.0051
0.0024
ND
ND
'Truck Loading1.118
0.310
0.099
0.0263
ND = No Data
The facility has a maximum process rate of 120 cubic yards per hour. At this facility, a yard of concrete weighs
3900 pounds or 1.95 tons (including the water) based on the DAQ Spreadsheet for Concrete Batch Plants. Thus, the
facility has a maximum process rate of 234.0 tons per hour.
55 * (234.0) D1 � — 40 = 60.23 pounds per hour emissions limit
From the table above, controlled PM emissions at the truck load -out are actual worst case at 0.098 pounds per ton of
material loaded:
234 tonslhr * 0.098 lb/ton = 2293 pounds per hour

Km's Hickory Ready -Mix Concrete Co., Inc.
Permit Review
Page 3 of 4
2293 pounds per hour actual < 60.23 pounds per hour allowed
Compliance with 2D .0515 is indicated with bagfilter control.
2D .0521 - Control Of Visible Emissions
Equipment manufactured before July 1, 1971 is subject to a 40% opacity limit, while equipment manufactured after
July 1, 1971 is subject to a 20% opacity limit. The 2008 application states that al I of the equipment associated with
this facility has an October 2007 manufacture date, therefore, the 20% opacity limit applies to all sources. Recent
inspection reports indicate that visible emissions have not been a concern. Compliance with 2D .0521 is indicated
and continued compliance is expected.
2D .0540 - Particulates from Fugitive Dust Emission Sources
This regulation addresses all facilities with activities such as: unloading and loading areas, process areas, stockpiles,
stock pile working, plant parking lots, and plant roads (including access roads and haul roads). The regulation
requires a fugitive process dust plan and abatement measures if substantive complaints are verified. There have
been no documented complaints concerning the facility and compliance is indicated. Continued compliance with
2D .0540 is expected.
2D .0611 - Monitoring Emissions from Other Sources
This regulation sets requirements to monitor the performance of control devices. The cartridge -type filters (ID Nos.
CDi and CD2) are required to be maintained such that the devices are functioning as designed. All of the filters are
to be inspected internally on an annual basis and the results of the inspections documented. Compliance with these
requirements is indicated based on recent inspection reports and continued compliance is expected.
2D . 1100 - Control of Toxic Air Pollutants
Concrete production of more than 33,000 cubic yards per year results in emissions of arsenic above the toxic
pollutant emissions rate (TPER) of 0.0 16 pounds per year of arsenic. The facility has a modeled production limit of
87,000 cubic yards per year, resulting in arsenic levels at approximately 99% of the AAL. At the current time, the
North Carolina Science Advisory Board (SAB) on Toxic Air Pollutants is conducting an analysis of the Acceptable
Ambient Level (AAL) for arsenic. Once this review process is completed and approved by the North Carolina
Environmental Management Commission (EMC), the arsenic AAL could potentially be changed. Upon completion
of the review process, the facility may be required to submit another toxics demonstration for arsenic emissions at
the approved levels. The facility has monthly record keeping and annual reporting requirements to ensure
compliance. The 2012 emissions inventory states that the facility produced 22,957 cubic yards of concrete in 2012.
Continued compliance with 2D A 100 is expected. Note that the calculations are based on the facility's material
composition, not the typical composition default in the DAQ concrete batch plant spreadsheets (see attached).
2Q .0711 - Emission Rates Requiring a Permit
This regulation requires facilities to be permitted for emissions of toxics if the emissions are above the Toxic Permit
Emission Rate (TPER). Emissions of beryllium, cadmium, chromium, manganese, and nickel are emitted at rates
below the TPER. Compliance with 2Q .0711 is indicated based on the 87,000 cubic yard production limit specified
by the 2D .1 100 condition.
2Q .0.102 - Activities Exempted from Permit Requirements:
The sand and aggregate delivery to ground storage, transfer to conveyor and transfer to elevated storage, and the
sand and aggregate weight hopper {ID Nos. I I and I2 respectively) are exempt on an individual source basis from air
quality permitting per 2Q.0 102(c)(2)(E)(i). They are listed on an attachment to the permit as exempt/ insignificant
activities.
5. NSPS, NESHAPS, PSD, Toxies and 112(r) and Attainment Status
The facility is not subject to the requirements of NSPS, NESHAPS/MALT, PSD, or 112(r). Based on this facility's
potential emissions shown below, this facility is not a PSD major source.

Kerr's Hickory Ready -Mix Concrete Co., Inc.
Permit Review
Page 4 of 4
Toxies - The facility has an annual production limit of 87,000 cubic yards to comply with the modeled emissions of
arsenic as discussed above.
6. Facility Compliance Status
The facility was last inspected on 08/0812013 by Ms. Angela Hopper of this office and the facility appeared to be in
compliance with the air permit at the time of the inspection. The facility was issued a Notice of Violation on
02/1 1/2010 for a late annual report. There have been no other documented violations by the facility in the past five
years.
7. Facility Emissions Review
Based on the potential emissions shown below, this facility remains classified as a small facility.
Facility -Wide Emissions Summary
Yi'ollatant ~
Actual 2012 ,
Potential EriiissiQns
` 1'atitttiaE�ia%is ons.
f ,'
' Emissions f
=After Controls t`
Bef0 - * ntrols° f "
PM
0.46
1.76
402.87
PM io
0.21
0.81
87.70*
*Potential emissions for classification only include point sources.
Actual emissions are calculated based on the 2012 emissions inventory which states that 22,957 cubic yards of
concrete were produced in 2012. Potential controlled emissions are based on an 87,000 yd' annual production limit,
and bagfilter controls on the cement/flyash silo, weigh hopper, and truck load -out (ID Nos. ES 1 through ES3,
respectively). See attached DAQ concrete spreadsheets. Note that the calculations are based on the facility's
material composition, not the typical composition default in the DAQ concrete batch plant spreadsheets (see
attached).
8. Stipulation Review
a. The portable pig for cement storage (ID No. ES4) is added to the permitted equipment list.
b. An emissions inventory for calendar year 2017 is due 90 days prior to the expiration of the permit.
9. Conclusions, Comments, and Recommendations
checked the NC Secretary of State Webpage on May 29, 2013 and verified that Kerr's Hickory Ready -Mixed
Concrete Company, Inc. is registered as a North Carolina corporate entity. ARO will issue Air Permit No.
09937R0I to Kerr's Hickory Ready -Mixed Concrete Co., Morganton, Burke County, North Carolina.

A
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
August 12, 2013
Mr. Robert C. Canipe, Jr.
Division of Air Quality
Sheila C, Holman
Director
Manager
Kerr's Hickory Ready -Mixed Concrete Co., Inc.
Post Office Box 1924
Hickory, NC 28603
Subject: Air Permit No. 09937R01
John E. Skvarla,'III
Secretary
Kerr's Hickory Ready -Mixed Concrete Co., Inc. - Industrial Blvd. Plant
Morganton, Burke County, North Carolina
Permit Class: Small
Facility ID# 1200194
Dear Mr. Canipe:
In accordance with your completed application received May 28, 2013, we are forwarding
herewith Permit No. 09937ROI to Kerr's Hickory Ready -Mixed Concrete Co., Inc. - Industrial
Blvd., Morganton, Burke County, North Carolina for the construction and operation of air emissions
sources or air cleaning devices and appurtenances. Additionally, any emissions activities
determined from your air permit application as meeting the exemption requirements contained in
15A NCAC 2Q .0102 have been listed for information purposes as an "ATTACHMENT" to the
enclosed air permit. Please note the records retention requirements are contained in General
Condition 2 of the General Conditions and Limitations.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request a formal adjudicatory hearing within 30 days following receipt of this
permit, identifying the specific issues to be contested. Such a request will stay the effectiveness of
the entire permit. This hearing request must be in the form of a written petition, conforming to G.S.
150B-23 of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. The form for requesting a formal
adjudicatory hearing may be obtained upon request from the Office of Administrative Hearings.
Unless a request for a hearing is made pursuant to G.S. 150B-23, this air permit shall be final and
binding.
You may request modification of your air permit through informal means pursuant to G.S.
150E-22. This request must be submitted in writing to the Director and must identify the specific
Asheville Regional Office - Division of Air Quality
2090 U.S. Highway 70, Swannanoa, North Carolina 28778
Phone: [phone] I FAX: [phone]
intemet: www.ncair.orA
An Equal Opportunity 1 Affirmative Action Employer -Made in part by Recycled Paper

Mr. Robert C. Canipe, Jr.
August 12, 2013
Page 2
provisions or issues for which the modification is sought. Please note that the permit will become
final and binding regardless of request for informal modification unless a request for a hearing is
also made under G.S. 150B-23_
Unless exempted by a condition of this permit or the regulations, construction of new
air pollution sources or air cleaning devices, or modifications to the sources or air cleaning
devices described in this permit must be covered under a permit issued by the Division of Air
Quality prior to construction. failure to do so is a violation of G.S. 143-215.108 and may
subject -the Permittee to civil or criminal penalties as described in G.S. 143-215.114A and 143-
215.11413.
"Phis permit shall be effective from August 12, 2013 until July 31, 2018, is nontransferable
to future owners and operators, and shall be subject to the conditions and limitations as specified
therein.
Changes have been made to the permit stipulations. The Permittee is responsible for
carefully reading the entire permit and evaluating the requirements of each permit
stipulation. The Permittee shall comply with all terms, conditions, requirements, limitations
and restrictions set forth in this permit. Noncompliance with any permit condition is grounds
for enforcement action, for permit termination, revocation and reissuance, or modification, or
for denial of a permit renewal application. Specific changes and additions are summarized
below (note: this list may not include all changes and additions):
The portable pig for cement storage (ID No. ES4) is added to the permitted equipment
list.
An emissions inventory for calendar year 2017 is due 90 days prior to the expiration of
the permit.
Should you have any questions concerning this matter, please contact Harold Brady at (828) 296-
4500.
Sincerely,
Paul K. Muller, P.E.
Regional Air Quality Supervisor
PKM:hlb
Enclosures
c: Asheville JZegional Office

NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
Issue Date: August 12, 2013
Expiration Date: July 31, 2018
DIVISION OF AIR QUALITY
AIR PERMIT NO.09937ROI
Effective Date: August 12, 2013
Replaces Permit: 09937R00
To construct and operate air emission source(s) and/or air cleaning device(s), and for the
discharge of the associated air contaminants into the atmosphere in accordance with the provisions
of Article 21B of Chapter 143, General Statutes of North Carolina (NCGS) as amended, and other
applicable Laws, Rules and Regulations,
Kerr's Hickory Ready -Mixed Concrete Co., Inc. - Industrial Blvd. Plant
108 Industrial Boulevard
Morganton, Burke County, North Carolina
Permit Class: Small
Facility ID# 1200194
(the Permittee) is hereby authorized to construct and operate the air emissions sources and/or air
cleaning devices and appurtenances described below:
Emission
Emission Source 1
Control
Control System
Source ID
_ _ Description _
System ID ;
_ Description
1I0ne concrete batch plant (120 cubic yards per hour maximum capacity) consisting of= ____I
ESl one split cement (2/3) and flyash (1/3) storage silo
(120 ton capacity)
ES3 one truck load -out operation
ES4 one portable pig for cement storage (185 tons
maximum capacity)
ES2 _— one weigh hopper (5 ton capacity)
CD I one cartridge -type filter (1,536
square feet of surface area)
CD2
one cartridge -type filter (35
square feet of surface area)
in accordance with the completed application 1200194.13A received May 28, 2013 including any
plans, specifications, previous applications, and other supporting data, all of which are filed with the
Department of Environment and Natural Resources, Division. of Air Quality (DAQ) and are
incorporated as part of this permit.
This permit is subject to the following specified conditions and limitations including any
TESTING, REPORTING, OR MONITORING REQUIREMENTS:

0
Permit No. 09937ROI
Page 2
A: SPECIFIC CONDITIONS AND LIMITATIONS
1. Any air emission sources or control devices authorized to construct and operate above must
be operated and maintained in accordance with the provisions contained herein, ne
Permittee shall comply with applicable Environmental Management Commission
Regulations, including Title 15A North Carolina Administrative Code (NCAC), Subchapter
2D ,0202, 2D .0515, 2D .0521, 2D .0535, 2D .0540, 2D .0611, 2D .1100 and 2Q .0711.
2. PERMIT RENEWAL AND EMISSION INVENTORY REQUIREMENT -The Permittee,
at least 90 days prior to the expiration date of this permit, shall request permit renewal by
letter in accordance with 15A NCAC 2Q .0304(d) and (0. Pursuant to 15A NCAC 2Q
.0203(i), no permit application fee is required for renewal of an existing air permit (without
a modification request). The renewal request (with AA application form) should be
submitted to the Regional Supervisor, DAQ. Also, at least 90 days prior to the expiration
date of this permit, the Permittee shall submit the air pollution emission inventory report
(with Certification Sheet) in accordance with 15A NCAC 2D _0202, pursuant to N.C,
General Statute 143 215.65. The report shall be submitted to the Regional Supervisor, DAQ
and shall document air pollutants emitted for the 2017 calendar year.
3. PARTICULATE CONTROL REQUIREMENT - As required by 15A NCAC 2D .0515
"Particulates from Miscellaneous Industrial Processes," particulate matter emissions from
the emission sources shall not exceed allowable emission rates. The allowable emission rates
are, as defined in 15A NCAC 2D .0515, a function of the process weight rate and shall be
determined by the following equation(s), where P is the process throughput rate in tons per
hour (tons/hr) and E is the allowable emission rate in pounds per hour (lbs/hr).
kv�� E = 4.10 * (P) 0-" for P <= 30 tons/hr, or
E = 55 * (P) 01 - 40 for P >30 tons/hr
4, VISIBLE EMISSIONS CONTROI. REQUIREMENT - As required by 15A NCAC 2D
.0521 "Control of Vis ,missions," visible emissions from the emission sources,
manufactured afterkju y 1, 1971 shall not be more than 20 percent opacity when averaged
over a six -minute perio , except that six -minute periods averaging not more than 87 percent
opacity may occur not more than once in any hour nor more than four times in any 24-hour
period. However, sources which must comply with 15A NCAC 2D .0524 "New Source
Performance Standards" or .1110 "National Emission Standards for Hazardous Air
Pollutants" must comply with applicable visible emissions requirements contained therein.
_1--5. NOTIFICATION REQUIREMENT - As required by 15A NCAC 213.0535, the Permittee of
a source of excess emissions that last for more than four hours and that results from a
malfunction, a breakdown of process or control equipment or any other abnormal
conditions, shall:
a. Notify the Director or his designee of any such occurrence by 9:00 a.m. Eastern time
of the Division's next business day of becoming aware of the occurrence and
describe:
the name and location of the facility,

Permit No. 09937R0I
Page 3
i1. the nature and cause of the malfunction or breakdown,
iii. the time when the malfunction or breakdown is first observed,
iv, the expected duration, and
V. an estimated rate of emissions.
b. Notify the Director or his designee immediately when the corrective measures have
been accomplished.
This reporting requirement does not allow the operation of the facility in excess of
Environmental Management Commission Regulations.
6. FUGITIVE DUST CONTROL REQUIREMENT - As required by 15A NCAC 2D .0540
"Particulates from Fugitive Dust Emission Sources," the Permittee shall not cause or allow
fugitive dust emissions to cause or contribute to substantive complaints or excess visible
emissions beyond the property boundary. If substantive complaints or excessive fugitive
dust emissions from the facility are observed beyond the property boundaries for six minutes
in any one hour (using Reference Method 22 in 40 CFR, Appendix A), the owner or
ope for may be required to submit a fugitive dust plan as described in 2D .0540(o.
&n, is 16-r ra (Q
"FugiZe dust emissions" means particulate matter that does not pass through a process
stack or vent and that is generated within plant property boundaries from activities such as:
unloading and loading areas, process areas stockpiles, stock pile working, plant parking lots,
and plant roads (including access roads and haul roads). .
7. FABRIC FILTER REQUIREMENTS including cartridge filters ba houses and other dry
filter particulate collection devices - As required by 15A NCAC 2D .0611, particulate matter
emissions shall be controlled as described in the permitted equipment list.
a. Inspection and Maintenance Requirements - To comply with the provisions of this
r permit and ensure that emissions do not exceed the regulatory limits, the Permittee
�nnu¢,t shall perform, at a minimum, an annual (for each 12 month period following the
rnsfCC �1'e,'. initial inspection) internal inspection of each bagfilter system. In addition, the
I Permittee shall perform periodic inspections and maintenance as recommended by
the equipment manufacturer.
b. Recordkeeping Requirements - The results of all inspections and any variance from
m°tj°n,-,r'r-'�—manufacturer's recommendations or from those given in this permit (when
rec" applicable) shall be investigated with corrections made and dates of actions recorded
in a logbook. Records of all maintenance activities shall be recorded in the logbook.
The logbook (in written or electronic format) shall be kept on -site and made
available to DAQ personnel upon request.
8. TOXIC AIR POLLUTANT EMISSIONS LIMITATION AND REPORTING
REQUIREMENT - Pursuant to 15A NCAC 2D.] 100 "Control of Toxic Air Pollutants," and
in accordance with the approved application for an air toxic compliance demonstration, the
following permit limits shall not be exceeded:

Permit No. 09937R0 i
Page 4
_ Source(s)
feToxic Air Pollutant � Emission Limit
Facility Wide Arsenic & Compounds (total mass of elemental AS, arsine 0.04257 pounds
and all inorganic compounds) (ASC (777$394)) Per year --�
a. Restrictions - To ensure compliance with the above limits, the following restrictions
shall apply:
i, concrete production shall not exceed 87,000 cubic yards per consecutive 12-
month period. i►b• awe norm*.( orw,ti.,j ,,Ms
ii. the facility shall be constructed and operated in accordance with the
parameters established in the computer modeling results approved by the
Division of Air Quality on August 21, 2008.
b. Reportinp, Requirements - Within 30 days after each calendar year, regardless of the
actual emissions, the following shall be reported to the Regional Supervisor, DAQ: _
i. the monthly concrete production f'or the previous calendar year; and
ii. the total concrete production for the previous calendar year.
c. Recordkeeping Re uirements - The Permittee shall record daily and total monthly,
the cubic yards of concrete produced. 'These records are to be kept on site for three
years and made available to DAQ upon request.
9. TOXIC AIR POL.L,UTANT (:MISSIONS LIMITATION REQUIREMENT - Pursuant to
15A NCAC 2Q .0711 "Emission Rates Requiring a Permit," for each of the below listed
toxic air pollutants (TAPS), the Permittee has made a demonstration that facility -wide actual
emissions do not exceed the Toxic Permit Emission Rates (TPERs) listed in 15A NCAC 2Q
.0711. The facility shall be operated and maintained in such a manner that emissions of any
listed TAPs from the facility, including fugitive emissions, will not exceed TPERs listed in
15A NCAC 2Q .0711.
a. A permit to emit any of the below listed TAPS shall be required for this facility if
actual emissions from all sources will become greater than the corresponding
`TPERs.
b. PRIOR to exceeding any of these listed TPERs, the Permittee shall be responsible
for obtaining a permit to emit TAPs and for demonstrating compliance with the
requirements of 15A NCAC 2D .l 100 "Control of Toxic Air Pollutants".
c. In accordance with the approved application, the Permittee shall maintain records of
operational information demonstrating that the TAP emissions do not exceed the
TPERs as listed below:

Permit No. 09937R01
Page 5
Acute
Carcinogens
Chronic
Systemic
Acute
Pollutant
(lb/yr)
Toxicants
Toxicants
Irritants
ff I
(lb/day)
(lb/hr)---
(lblhr)
Beryllium Metal (unreacted)
(Component of BEC)
0.28
(7440-41-7)
Cadmium Metal, elemental,
i
1
unreacted (Component of
0.37
I
CDC) (7440-43-9) _
Chromium (VI) Soluble
I
Chromate Compounds
i
0.013
(Component of CRC) (3o1CR6)1
j
1
Manganese & compounds
0.63
Nickel metal (Component of
NIC 7440-02-0
1
0.13
d. Compliance with this condition shall be verified through the restrictions, reporting,
and recordkeeping required by Specific Condition 8 above, including the production
limitation of 87,000 cubic yards of concrete per year and the use of cartridge filter
controls.
B. GENERAL CONDITIONS AND LIMITATIONS
1. TWO COPIES OF ALL DOCUMENTS, REPORTS, TEST DATA, MONITORING DATA,
NOTIFICATIONS, REQUEST'S FOR RENEWAL, AND ANY OTHER INFORMATION
RE UIRED BY THIS PERMIT shall be submitted to the:
Regional Air Quality Supervisor
North Carolina Division of Air Quality
Asheville Regional Office
2090 U.S. Highway 70
Swannanoa, NC 28778
828-296-4500
For identification purposes, each submittal should include the facility name as listed on the
permit, the facility identification number, and the permit number.
2. RECORDS RETENTION REQUIREMENT -Any records required by the conditions of this
permit shall be kept on site and made available to DAQ personnel for inspection upon
request. These records shall be maintained in a form suitable and readily available for
expeditious inspection and review. These records must be kept on site for a minimum of 2
years, unless another time period is otherwise specified.

C�
Permit No. 09937R0I
Page 6
3. ANNUAL FEE PAYMENT - Pursuant to 15A NCAC 2Q .0203(a), the Permittee shall pay
the annual permit fee within 30 days of being billed by the DAQ. Failure to pay the fee in a
timely manner will cause the DAQ to initiate action to revoke the permit.
4. EQUIPMENT RELOCATION -Anew air permit shall be obtained by the Permittee prior to
establishing, building, erecting, using, or operating the emission sources or air cleaning
equipment at a site or location not specified in this permit.
5. REPORTING REQUIREMENT- Any of the following that would result in previously
unpermitted, new, or increased emissions must be reported to the Regional Supervisor,
DAQ:
a. changes in the information submitted in the application regarding facility emissions;
b. changes that modify equipment or processes of existing permitted facilities; or
c. changes in the quantity or quality of materials processed.
If appropriate, modifications to the permit may then be made by the DAQ to reflect any
necessary changes in the permit conditions. In no case are any new or increased emissions
allowed that will cause a violation of the emission limitations specified herein.
This permit is subject to revocation or modification by the DAQ upon a determination that
information contained in the application or presented in the support thereof is incorrect,
conditions under which this permit was granted have changed, or violations of conditions
contained in this permit have occurred. The facility shall be pro2erly operated and
maintained at all times in a manner that will effect an overall reduction in air pollution.
Unless otherwise specified by this permit, no emission source may be operated without t e
concurrent operation of its associated air cleaning device(s) and appurtenances.
7. This permit is nontransferable by the Permittee. Future owners and operators must obtain a
new air permit from the DAQ.
8. This issuance of this permit in no way absolves the Permittee of liability for piny potential
civil penalties which may be assessed for violations of State law which have occurred prior
to the effective date of this permit.
9. This permit does not relieve the Permittee of the responsibility of complying with all
applicable requirements of any federal, State, or Local water quality or land quality control
authority.
10. Reports on the operation and maintenance of the facility shall be submitted by the Permittee
to the Regional Supervisor, DAQ at such intervals and in such form and detail as may be
required by the DAQ. Information required in such reports may include, but is not limited
to, process weight rates, firing rates, hours of operation, and preventive maintenance
schedules.

Permit No. 09937ROI
Page 7
11. A violation of any term or condition of this permit shall subject the Permittee to enforcement
pursuant to G.S. 143-215.114A, 143-215.11413, and 143-215.114C, including assessment of
civil and/or criminal penalties.
12. Pursuant to North Carolina General Statute 143-215.3(a)(2), no person shall refuse entry or
access to any authorized representative of the DAQ who requests entry or access for
purposes of inspection, and who presents appropriate credentials, nor shall any person
obstruct, hamper, or interfere with any such representative while in the process of carrying
out his official duties. Refusal of entry or access may constitute grounds for permit
revocation and assessment of civil penalties.
13. The Permittee must comply with any applicable Federal, State, or Local requirements
governing the handling, disposal, or incineration of hazardous, solid, or medical wastes,
including the Resource Conservation and Recovery Act (RCRA) administcred by the
Division of Waste Management.
14. PERMIT RETENTION REQUIREMENT- The Permittee shall retain a current copy of the
air permit at the site. The Permittee must make available to personnel of the DAQ, upon
request, the current copy of the air permit for the site.
15. CLEAN AIR ACT SECTION 112(r) RE UIREMENTS - Pursuant to 15A NCAC 2D .2100
"Risk Management Program," if the Permittee is required to develop and register a risk
management plan pursuant to Section 112(r) of the Federal Clean Air Act, then the
Permittee is required to register this plan with the USEPA in accordance with 40 CFR Part
68.
16. PREVENTION OF ACCIDENTAL RELEASES - GENERAL DUTY - Pursuant to Title I
Part A Section 112(r)(1) of the Clean Air Act "Hazardous Air Pollutants - Prevention of
Accidental Releases - Purpose and General Duty," although a risk management plan may not
be required, if the Permittee produces, processes, handles, or stores any amount of a listed
hazardous substance, the Permittee has a general duty to take such steps as are necessary to
prevent the accidental release of such substance and to minimize the consequences of any
release. This condition is federally -enforceable only.
17. GENERAL EMISSIONS "TESTING AND REPORTING REQUIREMENTS - If emissions
testing is required by this permit, or the DAQ, or if the Permittee submits emissions testing
to the DAQ in support of a permit application or to demonstrate compliance, the Permittee
shall perform such testing in accordance with 15A NCAC 2D .2600 and follow all DAQ
procedures including protocol approval, regional notification, report submittal, and,test
results approval.

Permit No. 09937R01
Page 8
Permit issued this the 12"' of August, 2013.
NOR,ri-I CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Paul K. Muller, P.E.
Regional Air Quality Supervisor
By Authority of the Environmental Management Commission
Air Permit No. 09937ROI

ATTACHMENT to Permit No. 09937ROI, August 12, 2013
Insignificant / Exempt Activities
Source ! Exemption i Source of
Regulation TAPs?
I - Sand and aggregate delivery to ground 2Q .0102
storage, transfer to conveyor, and transfer to 1 No
(c)(2)(E)(i)
elevated storage�F
I2 -Sand and aggregate weigh hopper 2Q .0102 No
Source of Title V
Pollutants?
Yes
Yes
1. Because an activity is exempted from being required to have a permit or permit modification
does not mean that the activity is exempted from an applicable requirement or that the owner
or operator of the source is exempted from demonstrating compliance with any applicable
requirement.
2. When applicable, emissions from stationary source activities identified above shall be
included in determining compliance with the permit requirements for toxic air pollutants
under 15A NCAC 2D .1100 "Control of Toxic Air Pollutants" or 2Q .0711 "Emission Rates
Requiring a Permit."

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality D?b•r,.,r{Y'-w`S�y+......;r-;,,wAt+: +4 iiia�srx'r=
Dee't�em Beverly Eaves Perdue Caleen H. Sullins:,4, �• p�::='.:-.� '
an
Governor Director cretary
r
November 18, 2011
i 4
Mr. Roger Kerr NOV 2 2 2011 � }
Kerr s HRM Concrete „
1126 1 st. Ave SW/PO Box 1924 4
Hickory, NC 28602 WATER QUALITY SEC710N
r•:
y, a}}:: ASHL-VILLE REGIO\`l,L OFFICE
Subject: Gen etal�P`ei'" 't No NCG140000
• j :,:'!�cO-,'M.Lv..•....`.:.«.-a.�r.tr..-'..ws•WaM7 [d:+�a•�^
Kerr's HRM Concrete — Morganton Plant
COC No. NCG140410
Burke County
Dear Mr. Kerr:
In accordance with your application for a discharge permit received on June 10, 2011, we are
forwarding herewith the subject certificate of coverage (COC) to discharge under the subject state —
NPDES general 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 US
Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
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.
Please note that permit requirements in Part II, Section A, numbers 1-5, and Part 11, Section B,
number I are no longer valid per NC Session Law 2011-394. However, note that Part 11, Section A.
number 6, and Part 11, Section B, numbers 2-10 are unaffected by this Session Law. Those sections will
remain in effect for the duration of this permit term. Please be reminded that your facility must notify the
appropriate D WQ Regional Office at least 72 hours in advance of operation of your wastewater treatment
facility.
If you have any questions concerning this permit please contact Brian Lowther at telephone
number [phone].
Sincerely,lt�
for C:oleen H. Sullins
cc: Asheville Regional Office
Central Files
Stormwater Permitting Unit Files
Wetlands and 5tomtwater Branch One
1617 Mail Service Center, Raleigh, North Carolina 27699.1617 NorthCalcolina
Location: 512 N Salisbury St, Ralegh, Notch Carolina 27604
Phone: [phone]M k FAX: [phone] Customer Senrice:1-877-6i23-6748 AWAMMAY
Internet: www.ncwaterquality.org
An Equal opportunity l AffirmaUve Action Employer

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140410
STORMWATER AND PROCESS WASTEWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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,
KERR'S HICKORY READY -MIXED CONCRETE COMPANY, INC.
is hereby authorized to discharge stormwater and process wastewater from a facility located at
Kerr's HRM Concrete — Morganton Plant
108 Industrial Blvd.
Morganton, NC
Burke County
to receiving waters designated as Little Silver Creek, a class C water in the Catwaba River Basin,
in accordance with the effluent limitations, monitoring requirements, and other conditions set
forth in Parts I, II, II1, IV, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall become effective November 18, 2011.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 181h day of November, 2011.
for Coleen H. Sullins, Director
Division of Water Quality
By the Authority of the Environmental Management Commission

LOCATION MAP:
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- 14
U I
Ir�n
t
G:K -
x
R
Wr ;QA P.
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j . . . . . . .
0
. . . . . . . . . . . .
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Kerr's HRM Concrete - Marganton Plant
03P
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V eo,
A4
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7
Nil,
/40"
t Li
NCG140410
Mv Scale 1,,24,coo
Kerr's HRM Concrete
KeWs HRM Concrete - Morganton Plant
Lad tu& 3510 43'42" N
Longitude: 8111455" VV
County: Burke
Receimng Stream: Little Silver Creek
Stream Class; WS-IV
Sub -basin; 03-CS-31 (Catawba River Ba§n)
4 -ol"iKski
Facility Location

A A
��i.
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Roger Kerr
Kerr's HRM Concrete
1 ] 26 1 st. Ave S W/PO Box 1924
Hickory, NC 28602
Dear Mr. Kerr:
Division of Water Quality
Coleen H. Sullins
Director
November 18, 2011
Dee Freeman
Secretary
Subject: General Penn it No. NCG140000
Kerr's HRM Concrete — Morganton Plant
COC No. NCG140410
Burke County
In accordance with your application for a discharge permit received on June 10, 2011, we are
forwarding herewith the subject certificate of coverage (COC) to discharge under the subject state —
NPDES general 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 US
Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
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.
Please note that permit requirements in Part 11, Section A, numbers 1-5, and Part II, Section B,
number 1 are no longer valid per NC Session Law 2011-394. However, note that Part 11, Section A,
number 6, and Part I1, Section B, numbers 2-10 are unaffected by this Session Law. Those sections will
remain in effect for the duration of this permit term. Please be reminded that your facility must notify the
appropriate DWQ Regional Office at least 72 hours in advance of operation of your wastewater treatment
facility.
If you have any questions concerning this permit please contact Brian Lowther at telephone
number [phone].
Sincerelr,,
for Coleen H. Sullins
cc: Asheville Regional Office
Central Files
Stormwater Permitting Unit Files
Wetlands and Stornwater Branch One
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 NorthCarolina
Phone:
Location- 5-8 7 Salisbury : Raleigh, North Carolina 27e4 a urn!!
Phone: [phone] FAX: 919�(}7.64941 Customer Service: 1-877.623-6748
InterneC www.ncwaterquality.org
An Equal oppodunitylAffirmative Action Employer

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG 140000
CERTIFICATE OF COVERAGE No. NCG140410
STORMWATER AND PROCESS WASTEWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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,
KERR'S HICKORY READY -MIXED CONCRETE COMPANY, INC.
is hereby authorized to discharge stormwater and process wastewater from a facility located at
Kerr's HRM Concrete — Morganton Plant
108 Industrial Blvd.
Morganton, NC
Burke County
to receiving waters designated as Little Silver Creek, a class C water in the Catwaba River Basin,
in accordance with the effluent limitations, monitoring requirements, and other conditions set
forth in Parts 1, II, III, IV, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall become effective November 18, 2011.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 18'h day of November, 2011.
for Coleen H. Sullins, Director
Division of Water Quality
By the Authority of the Environmental Management Commission

LOCATION MAP:
0
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Kerr's HRM Ccncrete - Marganton Plant
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I
A
A
NCG140410
H
�
Min Scale 1:24,000
Kerr's HRM Concrete
Kerr's HRM Concrete - Morganton Plant
LabDude: 35"143'42" N
Longitude: 810 44'55" W
County: Burke
Receiving Stream: Lite Silver Creek
Stream (lass: M-IV
Sub-basn: 03-C8-31 (Catawba River Basin)
Facility Location

-.►M
Nca NR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Beverly Raves Perdue Thomas A. Reeder
Governor Director
October 19, 2011
MEMORANDUM
To: Sergei Chernikov, PhD. -- Through Tammy Kauffman
NPDES Unit
From: Jim Adams, PE
Regional Engineer
NCDENRPWS
Asheville Regional Office
Subject: Review of NPDES GeneralPermit NCG140000
Certificate of Coverage No. NCG140410
Stormwater and Process Wastewater Discharges
Kerr's Hickory Ready -Mixed Concrete Company, Inc.
Response:
Dee Freeman
Secretary
Concur with the issuance of this permit provided the facility is operated and maintained properly,
the stated effluent limits are met prior to discharge, and the discharge does not contravene the
designated water quality standards.
❑ Concur with issuance of the above permit, provided the following conditions are met:
❑ Opposes the issuance of the above permit, based on reasons stated below, or attached:
Public Water Supply Section — Asheville Regional Office
2090 US Highway 70, Swannanoa, North Carolina 28778
Phone: [phone] FAX: [phone] Internet: ncdrinkingwater.state.nc.us
An Equal Opportunity 1 Anirma0ve AcUon Employer
Date: -0
None
arthCarolina
Naturally

Lowther, Brian
From: Lowther, Brian
Sent: Friday, October 14, 2011 4:40 PM
To: Conner, Bill
Subject: FW: DEH approval needed for Stormwater Permit with Waste water to WS-IV
Attachments: NCG140410_KerrsHRMConrete_Morganton_NOI.pdf; NCG140410
_KerrsHRMConrete Morganton —Approval Memo_DEH_letterhead_updated.doc; NCG140410
_KerrsHRMConrete__Morganton_COC.doc; ncg140410
_KerrsHRMConcrete-MorgantonCoverLetter.docm
From: Lowther, Brian
Sent: Thursday, October 06, 2011 4:57 PM
To: Conner, Bill
Subject: FW: DEH approval needed For Stormwater Permit with Waste water to WS-IV
Below is the email I sent to Jim and attached is the information about the project we need approval for. This is a
general permit so the permit text can be found here: http://Portal.ncdenr.org/web/wq/ws/su/npdessw
Let me know if you have any questions.
Brian
Brian C. Lowther
Environmental Engineer
NCDENR I DWQ I Storinwatcr Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
512 N. Salisbury St, Raleigh, NC 27604
Phone: [phone]
Email: hricu.lc}�t therCrnc�lcnr.gi.n
Websitc: http://portal.ncdenr.org/web/wghvs/su
E-mail correspondence to and from this address may he subject to the North Carolina Public Records
Law and may be disclosed) to third parties.
From: Lowther, Brian
Sent: Wednesday, September 07, 2011 11:19 AM
To: Adams, Jim
Subject: DEH approval needed for Stormwater Permit with Waste water to WS-IV
Jim,
We have a stormwater permit application for Kerrs,H,,RMIConcrete— Morgan Plant in Morganton (Burke County). This is
a concrete plant that has a recycle system that could discharge wastewater and the receiving stream is Little Silver Creek
(11-34-7-(2)) which is a WS-IV. Your approval is needed in order to permit this facility. I have attached the form that

needs to be filled out as well as their application form. We are ready to issue the permit and feel that is meets all our
requirements.
Please let me know if you have any questions.
Brian
Brian C, Lowther
Environmental Engineer
NCDENR I DWQ I Stormwater Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
512 N. Salisbury St, Raleigh, NC 27604
Phone: [phone]
Email: hri;to.lc,��lh�rl�i:rlctlenr.iy�+
Website: litti)://i)ortal.iicdenr.org/web/wq/ws/su
E-mail correspondence to and from this address may be subject to the North Carolina Public Records
Law and may be disclosed to third parties.
2

CPEES
CP Engineering and Environmental Solutions
(An Lnterprise-wide Solution Provider for XfanuJacturing)
Memo
TO- Mr. Robert Patterson
Engineer —Stormwater Permitting Unit jai) NC DENR
Non Chalam (Chuck) Pakala, P.E., Managing Principal
GPEE5Dates: 81112fl11h
Re: PE Certified As -built Pit Drawing (3 copies)
Good Afternoon Robert,
Attached please see the As -built site drawing showing actual pit dimensions constructed at the
Morganton site. CPEES measured the pit dimensions in the field and marked on the drawings. The
as -built drawings are PE certified as requested in our earlier conversation. I hope you will be satisfied
with this submittal and help us obtain the No discharge permit for the Morganton site. Please note,
CPEES was told that the stormwater pond (25yr 24 hr) was constructed as per the plans approved by
the State.
Please call me if you have any questions or comments on this submittal.
Thanks,
Chuck
Page 1
rr i ri ... io ..rrrrrr
10017 Allyson Parts Dr., Charlotte, NC 28277, Tel/Fax [phone]AO43
Email [e-mail]

CERR'S HRM CONCRETE • P.O. BOX 1924 • HICKORY, INC 28603
NO. 055206
INVOICENO. INVOICE DATE
NETAIVIOUNT.TOTAL
06/08/11
$ 100.00
$ 100.00
Stormwater permit
[RQwIR OP
.SUN 1 0 2011
LWe
N OVA F� QUAf.
S!hwateP Branch
og%'S CONCRETE
Producing Quality Ready Mixed Concrete Since 1942
PO BOX 1924 • HICKORY, NC 28603
828-322-3157 • FAX [phone]
Bank of Granite
HICKORY, NC 28601
mp-G0 4 04- 10
THE SuM j;:
PAY TO THE. ORDER OF:
NCDENR

CHECK NO. 055206
66-363
531
DATE 06/08/11

May 24, 2011
JUN
Mr. Ken Pickle, Environmental Engineer 11
NC DENR -Stormwater Permitting Unit rLDENRATE
k c�uA�1617 Mail Service Center &are
Raleigh, North Carolina 27669-1617
Re: Application for Rescinding the NPDES Permit Based on the Current
Process / Stormwater Recycling System and Retention Pond at Morganton
Concrete Plant
Kerr HRM Concrete — Morganton Plant
108 Industrial Blvd.
Morganton, Burke County, North Carolina 28655
CPEES Proiect No. 1134-001
NPDES General Permit No.: NCG 140000
Certificate of Coverage; Not issued yet
Dear Mr. Pickle:
Kerr Concrete (KERR) is pleased to submit the attached NPDES Permit rescinding request along
with Authorization -to -Operate (A to O) permit for Process 1 Stormwater Recycling System for
Kerr Concrete— Morganton Concrete Plant located in Morganton, North Carolina. The A to O
Report includes:
r NC DENR NPDES General Permit Application NCG 140000;
• Check for $100 made payable to NC DENR;
• Site map showing the delineation of drainage area contributing to the process
wastewater;
• Site layout map showing the proposed location of the process f stormwater recycling
system;
• 25 yr 24-hr stormwater runoff calculations;
• Detailed design, construction drawings along with construction specifications for the
proposed process and stormwater recycling system;
• Si a Location Map;
KERR sincerely appreciates your cooperation and progress of this project. Please call me at 828-
322-3157 or Mr. Chuck Pakala of CPEES at 704-541-4042 if you have any questions or
comments on this permit request.
Respectfully submitted,
Roger Kerr
VP Sales and Treasurer
Attachments: A to C Permit Application Package

Permit Application for Authorization to
Operate (A to O) a Process /Stormwater
Recycling System
NPDES General Permit No.: NCG140000
Certificate of Coverage: Not Issued Yet
Prepared for:
Xerr Concrete- -Morganton Plant
108 Industrial Blvd.
Morganton, Burke County, North Carolina 28655
H CARO
S*Es'sid ft�'y�
SEAL'<�
19807
M V. QP�
CPEES Project No. 1134-001
May 24, 2011
Prepared by:
Chalam Pakala Engineering and Environmental Solutions
10017 A]lyson Park Dr.,
Charlotte, North Carolina 28277
Tel [phone] / Fax: [phone]
Email: [e-mail]

Permit Application for Authorization to Operate
(A to O) Process / Stormwater Recycling System
Kerr Concrete— Morganton Plant
Mor anton North Carolina
NPDES General Permit No.: NCG140000
Certificate of Coverage: Not issued yet
TABLE OF CONTENTS
1.0 FACILITY DESCRIPTION..............................................................................................1
2.0 FACILITY OPERATIONS................................................................................................1
3.0 PROCESS WASHWATER CALCULATIONS...............................................................2
4.0 STORMWATER RUNOFF CALCULATIONS FOR A 25 YEAR AND 24-HR RAIN
EVENT....................................................................................................................................... 3
5.0 EXISTING STORMWATER / PROCESS WASHWATER RECYCLE SYSTEM
DESIGN AND CONSTRUCTION DETAILS.......................................................................4
6.0 WATER BALANCE CALCULATIONS..........................................................................4
7.0 A to C CONSTRUCTION PERMIT APPLICATION....................................................5
TABLES
Table 1: Runoff Volume Calculations for a 25 yr, 24-hr Storm Event
FIGURES
Figure 1: Site Location Map
Figure 2: Aerial View of Surrounding Properties around the Morganton Plant
Figure 3: Site Layout Map with Buildings, Dry Mix Concrete Plant and Proposed Location of
Process Washwater / Stormwater Recycle System
ATTACHMENTS
Attachment A: Independent Consultants Calculations
Attachment B: NC DENR — Division of Water Quality Stream Classification Table for Burke
County
CP Engineering and Environmental Solutions i A to C Permit Application
Tel: [phone] Kerr IYRM Concrete - Morganton
Email: cvpakalancarolina.rr.com 1081ndustrial Blvd.

Permit Application for Authorization to Operate
(A to O) Process /Stormwater Recycling System
Kerr Concrete— Morganton Plant
Morganton, North Carolina
NPDES General Permit No.: NCG140000
Certificate of Coverage: Not Yet Issued
1.0 FACILITY DESCRIPTION
Kerr Concrete -Morganton Plant located at 108 Industrial Blvd.
Morganton, Burke County, North Carolina, is a dry batch ready mix concrete plant for
commercial supply. The primary Standard Industrial Classification (SIC Code) for the facility
is 3273 (Ready Mixed Concrete). The approximate location of the facility on a US Geological
Survey Map is provided on Figure 1. The geographic site location can also be given as 350 43'
4 L76" North Latitude and 810 44' 5494" West Longitude. The subject facility is surrounded
by wooded areas on the east, west and southern side of the site and heavy industrial facilities
on north and northwestern side of the site. The details of surrounding properties are displayed
on the Aerial Map, Figure 2, attached with this report. The Morganton Plant is owned by
KERR and occupies approximately 10.76 acres of land with the paved area for operations.
However, approximately 0.61 acres of area (Drainage Area-2) will be exclusively used for
process/washwater/recycle operations. The stormwater from the facility drains to a 25yr, 24 hr
stormwater retention basin located east of the property. The process water from the facility
goes to a five pit system at the site. The stormwater, if it ever overflows from the retention
pond, would go to Little Silver Creek and to Silver Creek and eventually to Catawba River
located north of the site, Figure 1. Based on my review with NC Division of Water Quality
web site, it is our understanding that Silver Creek is classified as Class WS-IV (see attached
table obtained from NC DENR — Division of Water Quality Section web site for details -
Attachment B). The Morganton Plant will consist of an office building, a ready mix concrete
plant next to the office building, cement and fly -ash silos, a permanent pit system for
washwater, and gravel storage areas, and a concrete truck drum wash area. Morganton Plant
will have approximately 2 to 10 trucks and operates 8 hrs/day, 5 days/wk and 30 to 50
wks/year, depending upon the weather and business conditions.
2.0 FACILITY OPERATIONS
The facility operations will include: a dry batch concrete plant with vacuum system for dust
control system, cement and fly -ash silos with a dust control central vacuum system, sand and a
small portion of gravel storage areas with limited water sprinkler system (taken into process
water consideration) and a truck washing area.
CP Engineering and Environmental Solutions 1 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cvpakala o carolina. rr. com 1081ndustrial Blvd.

Based on the request from the user, typical operations from this plant include: loading the
sand, gravel, and cement and fly -ash into a weigh scale which drops the dry mix into cement
trucks as a dry batch concrete mix. The dust extracted from the cement silo will be processed
through a NC DENR Division of Air Quality permitted bag filter system before released into
the atmosphere.
The loaded cement truck with concrete mix will be brought to a truck washing area for a
surficial wash before it goes out for the delivery. Occasionally, any left over concrete in the
concrete drum will be either used in making blocks or washed of at the plant in a truck
washing bay. Thus, process water will be generated at the plant for either recycling or
disposal. Based on our understanding of the facility operations, wash chemicals are located
near the wash pit area to collect any potential spills from these storage vessels. The oil storage k
tank was kept far from the pits and it is secondary contained. Therefore, no oily water or
stormwater contaminated with chemicals will be released to the environment from the facility. k ��
k
The facility has not applied for a NPDES General Permit (NCG140000) in the past and they
reason was that the stormwater discharge from the facility is contained within an on -site 25yr-
24hr stormwater retention basin. However, Kerr is submitting the NPDES permit application
permit and be complaint with the State Division of Water Quality regulation. To meet the
NPDES General Stormwater Permit requirements, a Stormwater Pollution Prevention Plan
(SWPP Plan) with Best Management Practices for potential stormwater pollutant sources shall
be prepared and implemented at the site.
All truck drums and drum chutes will be washed at the end of the day before parked for good.
Therefore, the locations where process washwater will be generated at the plant are:
• Surficial cleaning of the drum before leaving the site,
• Cement drum washing if left over concrete is brought back to the plant; and
• Drum and drum chutes cleaning at the end of the day.
3.0 PROCESS WASHWATER CALCULATIONS
Based on our discussions with the Morganton Plant Manager, it is our understanding that
approximately 25 to 40 batches per day will be completed in the summer time and 25 batches
per day will be completed in the winter time using 10 trucks. Approximately 5 to 10 gals of
water will be used for surficial washing of the truck per batch. Approximately 5 to 10 gals of
water will be used to wash drum chutes per truck per day at the end of the day.
Approximately 200 gals per day per drum will be used to wash at the end of the day.
CP Engineering and Environmental Solutions 2 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: civakalaa,carohna.rr.con) 108Industrial Blvd.

Description of Operation ,
c Unit
x
.Total
# Trucks worst -case)
trucks
10
# Batches per day using 15 trucks
worst -case scenario -summer time
Batches
40
Surfcial cleaning
10 gals/batch
400
Chute cleaning_at the end of the day
10 gals/truck
100
Drum cleaning at the end of the day
150gals/truck
1,500
Leftover concrete washing from the drum 5 batches
200 galsibatch
1,000
Total als/da
3,050
4.0 STORMWATER RUNOFF CALCULATIONS FOR A 25 YEAR AND
24-HR RAIN EVENT
According NC DENR-Division of Water Quality NPDES General Stormwater Permit
requirements, recycle systems are considered wastewater treatment per 15A NCAC 2H .0203
and all wastewater discharges must meet a total suspended solids (TSS) limit of 30 mg/l, a
settleable solids (SS) limit of 5 mill, and pH between 6-9 SU or must demonstrate that the
recycle system has sufficient capacity to contain 25-year, 24-hr rainfall event plus one foot of
freeboard under the design operating conditions.
To obtain an economic and workable solution, the existing recycling system design includes,
the truck washing operations and process washwater generating points. Approximately 26,741
sq ft or 0.61 acres of area including the small area for gravel washing is expected to contribute
to the process washwater from the facility (Figure 3). All washing operations beyond this
designated area are prohibited at the facility and the drivers will be trained to adhere to this
new policy for meeting the Stormwater regulations. A third party calculations supplied to
CPEES for a 25-yr, 24-hr rain event on 0.61 acres and the necessary storage volume are
provided with this report in Table 1.
Please note, during a rain event, no plant operations will be conducted. Therefore, no
wastewater is accounted for in the proposed recycle system design when 25-yr, 24-hr rain
event for stormwater is considered.
CP Engineering and Environmental Solutions 3 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: c•vpakala(acarolina.rr.com 1081ndustrial Blvd.

5.0 EXISTING STORMWATER / PROCESS WASHWATER RECYCLE
SYSTEM DESIGN AND CONSTRUCTION DETAILS
a.
The current recycle system is designed to capture all process washwater and stormwater from
a 25-yr, 24-hr rainfall event from the subject plant wash areas. The recycle system is designed
to hold entire runoff amount from the designed storm event. The approximate drainage area
involved in the process washwater is estimated to be 0.61 acres (Figure 3). The 25 year, 24-hr
runoff volume from this drainage area is estimated to be 7,777 eft. A recycle system was
designed and installed for the estimated runoff is a five pit system with a drying bed for the
waste materials removed from the pit (Figure 3). The total volume of all the five pits were
designed to be sufficient to hold the entire 25 year, 24-hr run off volume. Please note KERR
strives very hard to control and mitigate migration of any contaminated stormwater from the
facility to the waters of US.
All the five pits in the recycling system are sloped at the entrance in order for a front-end
loader to go into the pit for a periodic cleanup. However, a berm or a slope away from the pit
is placed in front of the second and the third pit in order to divert the wash wastewater entry
into these pits.
The pit sludge storage area, next to the truck washing operations, was constructed along with
the pit system in order to control stormwater flow that is in contact with the pit sludge. The
slopes of the truck washing operations and the pit sludge storage area are directed toward the
first pit of the five pit recycling system in order to control and mitigate migration of
stormwater contamination from the washing operations.
The location of the recycling system along with stormwater flow directions and wash areas are
displayed on Figure 3. The 25 year, 24-hr stormwater runoff calculations are provided in
Table I of this report.
A sump pump with a level switch is provided to pump water from the pit #4, as required, to
the plant or to the truck washing operations. This would help empty the pit #4 to
accommodate any possible rain event.
6.0 WATER BALANCE CALCULATIONS
The total flow from 25yr storm event is calculated to be 7,777 cft or 58,172 gallons.
Typically, the facility operates 40 to 50 batches per day and 250 gallons of water per batch (10
gal/yard and 25 yards per batch). Total water used in the plant per day is approximately
10,000 to 12,500 gals. Therefore, the pit water to be recycled in the plant equals to 5.8 days to
4.6 days respectively.
CP Engineering and Environmental Solutions 4 A to C hermit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cvpakalaewarolina.rr.com 108Industrial Blvd.

7.0 A to C CONSTRUCTION PERMIT APPLICATION
Based on the capacity of retention basin calculations supplied to CPEES, it is our
understanding that we could rescind the NPDES permit for this facility. However, we will
operate the recycling pit therefore, Kerr Concrete request the State to provide an Authorization
to Operate (A to O) the existing system. A copy of the NCG 140000 NOI is attached with the
A to O Report for an approval.
CP Engineering and Environmental Solutions 5 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cvpakala(a�curolinaxr.com 108 industrial Blvd.

Division of Water Quality / Surface Water Protection
NCDENRNational Pollutant Discharge Elimination System
�H cwoun. ctiwwrM.�r ar
Fwvmwrrrt urn Nmlw. rb�o.�ecra
NCGI40000
NOTICE OF INTENT
NOR AGENCY USE ONLY
pate Received
Year
Month
Da
Certificate of covers
ip
Check # Amount
ss�
Permit Assj&Md to
r
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete
For new plant sites that will discharge or recycle process wastewater (even ff commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to Construct (ATC) wastewater
treatment facilities. ATC requests must be submitted at least 90 days prior to construction'.
For xle_ _stlnsr plant sites discharging or recycling process wastewater (even If commingled with
stormwater): This NOI Is also an APPLICATION FOR Authorization to continue to operate wastewater
treatment facilities In place. Construction, modification, or installation of any new treatment components
at an existing site requires an ATC.
Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures
treating process wastewater flows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the
same time as the Certificate of Coverage (COC) for the NCG14 permit. Design of treatment facilities
must comply with requirements of 15A NCAC 21-1.0138 & .0139.
Construction of wastewater treatment facilities (this Includes recycle systems) at new or existing plant
sites requires submission of three (3) sets of plans and specifications signed and sealed by a
Professional Engineer (P.E.) or qualified staff2 along with this application. A copy of the design
calculations should be Included. Please see questions 14 & 15.
y For questions, please contact the DWO Regional Office for your area. (See page 5)
(Please print or type)
1) Mailing address of owner/operator (address to which all permit correspondence will be malledl:
Name
Street Address
City
Telephone No.
MR. ROGER KERR, V.P. of SALES AND TREASURER
1126 1st. AVE SW/PO BOX 1924
HICKORY
828-322-3157
2) Location of facility producing discharge:
Facility Name
Facility Contact
Street Address
City
County
Telephone No.
State NC ZIP Code 28602/28603
Fax: [phone]
KERR'S HRM CONCRETE - MORGANTON PLANT
MR. ROGER KERR, V.P. of SALES AND TREASURER
108 INDUSTRIAL BLVD.
MORGANTON
BURKE
State NC ZIP Code 28655
828-439-9886 Fax: [phone]
Page 1 of 5
1As per 15A NCAC 2H .0106
2Uniess treatment facilities are designed, constructed, and put into operation by employees internal to the company who are qualified to
perform such work for their respective companies in accordance with General Statutes, 89C-25 (7), plans and specifications must be signed
and sealed by a P.E.

NCG140000 N.O.I.
3) Physical location information:
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). SEE ATTACHED DIRECTIONS
(A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application.)
+4-
4) Latitude 35 43' 41.76" Longitude -81 bV-54.94" (deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
❑ New or Proposed Facility Date operation is to begin
0 Existing
6) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 2 7 3
7) Provide a brief description of the types of Industrial activities and products produced at this facility:
(Include a site diagram showing the process anus present at this facility.)
DRY CONCRETE OPERATIONS, PLANT PRODUCES CONCRETE FOR COMMERCIAL USE
8) Discharge points / Receiving waters:
How many discharge points (ditphes, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? NO-OU ELLS. r SL� Ldff _ Qw-,, C,,.k
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? NTUALLYTO CATAWBA RIVER (SEE FIGURE 1)
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer). N/A
Receiving water classification (if known): CLASS WS-IV (SEE ATTACHED SHEETS)
Note: Discharge of process wastewater to receiving waters classified as WS-II to WS-V or SA must
be approved by the N.C. Dept. of Environmental Health. If DEH does not approve, coverage
under NCG140000 cannot be granted. No new discharges of process wastewater are
permitted In receiving waters classified as WS-I or freshwater ORW.
9) Does this facility have any other NPDES permits?
® No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
10) Does this facility have any Non -Discharge permits (ex: recycle permits)?
0 No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility:
11) Does this facility employ any best management practices for stormwater control?
❑ No
0 Yes
If yes, please briefly describe: SECONDARY CONTAINMENT FOR OILS/CHEMICAL STORAGE, BERMS
AROUND THE STONE AND SAND STORAGE AREAS, PLANS TO RECYCLE WASHWATER

NCG140000 N.O.I.
12) Does this facility have a Stormwater Pollution Prevention Plan?
m No
❑ Yes
If yes, when was it implemented?
13) Are vehicle maintenance activities occurring or planned at this facility?
0 No
❑ Yes
Wa gwater Treatment Desi n Inf rma ion
14) Are discharges occurring or planned from any of the following process wastewater generating activities?
Vehicle and equipment cleaning ® Yes ❑ No
Wetting of raw material stockpiles 0 Yes ❑ No
Mixing drum cleaning
0 Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater.
For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH - 6-9 SU, Total
Suspended Solids (TSS) - 30 mgll, and Settleable Solids (SS) -- 5 ml/l.) [Use separate sheet(s)].
It all these discharges are recycled, please refer to Question 15.
For plants tftgt MgLcle andlor discharge process wa t wa r:
When applying for this permit, you are also applying for an authorization to construct (new
treatment facilities) or authorization to continue to operate (existing treatment facilities) as
part of the NOL For new sites, you must submit three (3) sets of design plans and
specifications with this application pnd provide supporting calculations that predict
compliance of final discharge with permit limits. For existing lies. applicants should submit
three (3) sets of plans and specs for facilities as -built and provide as many design details as
possible, or submit a detalled diagram of treatment systems In place that Includes Information
such as tank volumes, dimensions, retention time, piping, settling basin details, etc.
Please note: H new treatment systems are planned for an existina s►te, an ATC will be required
prior to construction of those facilities. Plans/specalcalculations prepared by a P.E. and the
request for an ATC may be submitted with this NOI, or separately at a later date. DWQ may
request the status of your plans for requesting an ATC upon Issuance of the COC.
15) Does the facility use or plan to use a recycle system?
❑ No
® Yes
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
25 year, 24-hr rainfall event
For a recycle system (regardless of_when it overflowsl, please provide plans, calculations, and design
specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of
freeboard in design storm event, etc.). [Use separate sheet(s)].
For a sufficient application, the information must demonstrate compliance of final discharge with permit
effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mgll, and Settleable Solids (SS) — 5 mill), or
must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr
rainfall event plus one foot of freeboard under design operating conditions.

NCG140000 N.O.I.
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
m No ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design
requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.)
17) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
® No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
® No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
m No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
18) Certification:
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 this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10,000).
I hereby request coverage under the referenced General Permit. I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit.
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 NafAe of Person Signing: MR. ROGER KERR
Title: V.,. o SALES AND TREASURER
Applicant)
01-F- #
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDENR

NCG140000 N.0.1.
Final Checklist
This application will be returned as Incomplete unless all of the following Items have been included:
® Check for $100 made payable to NCDENR.
© This completed application and all supporting documentation (including design details and calculations for
treatment systems).
W-1-
❑ If an Erosion & Sedimentation Control (E&SC) Plan Is required from Division of Land Resources (DLR)
or local designee: documentation verifying applicant has developed and submitted that Plan to the governing
agency (required per 15A NCAC 02H .0138). NOT REQUIRED
m For new sites (or sites that will Install new treatment facilities): Three (3) copies of plans and
specifications for wastewater treatment facilities (including recycle systems), signed and seated by a
Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7). SEE ATTACHED
❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including
1 recycle systems) gs built, stamped and sealed by a Professional Engineer, or (only if plans not available) a
detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions,
retention time, piping, settling basin details, etc. NIA
® A site map showing, at a minimum, (existing or proposed):
(a) outline of drainage areas, (b) stormwater/wastewater treatment structures, (c) location of
stormwater/wastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures,
(e) areas where materials are stored, (f) impervious areas, and (g) site property lines.
0 A county map or USGS quad sheet with location of facility clearly marked.
MaR the entire pal kep to:
Stormv&W Permitting Unit
Diyislgn a# Water Quality,
1617 Masi Service Center;
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the Issuance of an NPDES permit.
For questions, please contact the DWO Regional Office for your area.
DWQ Reaional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office ...
[phone]
Mooresville Office ...
[phone]
Raleigh Office ........
[phone]
Washington Office ...[phone]
Wilmington Office...
[phone]
Winston-Salem ......
[phone]
Central Office .........(919)
807-6300

Directions to 108 Industrial Blvd, Morganton, NC 28655
201 mi — about 3 hours 18 mine
Google maps
IRaleigh, NC
1. Head east on E South Sttoward $ Wilmington St
10 2. Turn right at the let cross street onto S Blount St
About 2 mins
3. Continue onto Hammond Rd
4. Merge onto 1-40 WIUS-84 W via the ramp to 1-440
' Continue to follow 1-40 IN
About 3 hours 9 mins
5. Take exit 100 for Jamestown Rd toward Glen Alpine
6. Slight left at Jamestown Rd
7. Take the let right onto Reep Dr
8. Take the 1 st right onto Dixie Blvd
About 2 mins
9. Continue onto industrial Blvd
Destination will be on the right
108 Industrial Blvd, Morganton, NC 28655
Save trees. Go green! ,
Download Google Maps an your
phone at google.com/gram o
go 0.1 mi
total 0.1 mi
go 0,8 mi
total 0.7 mi
go 0.4 mi
total 1.1 mi
go 199 mi
total 200 mi
go 0.2 mi
total 200 mi
go 348 ft
total 200 mi
go 0.3 mi
total 200 mi
go 0.7 mi
total 201 mi
go 0.2 mi
total 201 mi
These directions are for planning purposes only. You may find that construction projects, traffic, weather, or other events may cause conditions to differ from the map results, and you
should plan your route accordingly. You must obey all signs or notices regarding your route.
Map data 02011 Google
Directions weren'tright? Please find your route on maps.goNle.00m and dick "Report aproblem" at the bottom left.

TABLES
Table 1: Runoff Volume Calculations for a 25 yr, 24-hr Storm Event
(Supplied by Kerr Concrete)

YIF
2 NC®ENR
North Carolina Department of Environment and Natural Resources
�� Division of land Resources
Land Quality Section
Michael F. Easley, Govern William G. Ross, Jr., Secretary
James D. Simons, PG, PE. Ditto and State Geologist Janet S. Boyer, PE, Regional Engineer
:7
September 4, 2008
LETTER OF APPROVAL WITH MODIFICATIONS
Mr. Roger Kerr
Post Office Box 1924
Hickory, North Carolina 28603
RE: Project Name: Kerr Concrete
Acres Approved: 5.3
Additional Fee Received: $65.00
Project ID: BURKE-2008-023
County: Burke
Street and City: Industrial Drive, Morganton
River Basin: Catawba
Stream Classification: WS-IV
Latitude: 35.7267 Longitude: . 81.7398
Submitted By: Gateway Grading & Development, Kipp Turner, PE
Date Received by LQS: August 27, 2008
Plan Type, Revision (Sheet EC 1)
Dear Mr. Kerr :
This office has reviewed the subject erosion and sedimentation control plan. We find
the plan to be acceptable with modifications and hereby issue this letter of Approval With
Modifications. The Modifications Required for Approval are listed on the attached page. This
plan approval shall expire three (3) years following the date of approval, if no land -disturbing
activity has been undertaken, as is required by Title 15A NCAC 4B .0129.
Please be advised that Title 15A NCAC 4B .0118(a) requires that a copy of the
approved erosion control plan be on file at the job site. Also, you should consider this letter
to give the Notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure
compliance with the approved plan.
2090 US Highway 70, Swannanoa, North Carolina, 28778-8211
Telephone [phone] Fax [phone]
www,enr.state.nc.us
An Equal Opportunity ! Affirmative Action Employer
No e hCarolina
) atura!!t
J

STORMWATER PERMITTING REPORT
for
KERR'S CONCRETE PLANT SITE
in
MORGANTON, BURKE COUNTY, NC
PREPARED FOR:
KERR'S HICKORY READY MIX CONCRETE, INC.
PREPARED BY:
N. K. TURNER, P.E.
CONSULTING ENGINEER
LENOIR, NC
ADDITIONAL CONSULTING BY:
ROBERT JONES, El, GC, MBA
FROEHLING & ROBERTSON, INC.
CHARLOTTE, NC
SUBMITTED TO:
STORMWATER PERMITTING UNIT
DIVISION OF WATER QUALITY
1617 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1617
AUGUST 4, 2008 " o "
CARD'.
44o�,S SIp��C
SEAL
025478
�,qN K. ���

r �

Included as part of this document are the design parameters for the designated site and
process treatment component.
Site Description:
Kerr's Concrete is proposing a site for a new concrete plant in the City of Morganton,
NC. The site is a 10.76 acre tract in an area zoned Heavy Industrial by the City. The
property fronts State Road SR 1178 (Industrial Blvd), which will serve as the entrance to
the property, and State Road 1177 (Dixie Blvd).
The build -out project will consist of a ready mix plant, upper pad for materials
stockpiling and handling, lower pad for loading concrete trucks and administrative office,
as well as a wet detention pond for control of post -development storm runoff. The upper
pad will have a concrete surface. Approximately half of the lower pad will have a
concrete surface with the remainder consisting of a gravel surface.
Drainage Areas:
Drainage area DA-1 consists of 26,745 square feet and is used primarily stockpiling raw
materials on a portion of the upper pad. The area will be contained by natural
topography, earthen berms, and diversion drainage channels, and collected down gradient
in the Retention Area (15,140 co for solids removal. Off -site stormwater will be diverted
around the stockpile area and into the wet detention basin, which is designed to capture
the 25yr, 24hr storm event for the site.
Drainage area (DA-2) consists of 26,741 square feet with a Retention Area (17,898 cf)
and is designated as the primary process area where concrete is batched, admixtures are
stored, drum washout, truck washdown and bounded by the natural topography, earthen
berms and treatment structures (sediment removal and pH adjustment). Water from the
clear well (polishing)will be used for drum washout, truck washdown, and with the
ability to reuse the water in batching from the sediment basin as well as the pH clear
well. Discharge from the pH clear well will be via manual discharge and done so only
after a pH of 6 to 9 is verified by on -site personnel. The pH will be reduced via the
Fortrans system (possibly multiple systems in series for increased capacity and shorter
treatment times) for discharge. Stormwater from the drive areas will be diverted away
from the process area and conveyed to the wet detention basin mentioned above.
The Drum Washout Basin is contained with DA-2 and consists of 5 bays with pH
adjuster. Total volume of process water captured is 58,176 gallons. Details of the basin
are described later in this report.
Drainage area (DA-3) consists of 16,102 square feet with Retention Area (8,910 cf) and
is the portion of the gravel pad designated for the parking area for trucks. Stormwater
from this area is also collected and bounded by topography and earthen berms. Note that
stormwater from the office area and gravel entry area is not collected and is allowed to
discharge into the created swale diversion and conveyed to the wet detention basin.

Drainage area (DA-4) consists of 178,596 square feet, which encompasses the previously
described drainage areas DA-1, DA-2, and DA-3, as well as the remaining stormwater
flowing through the site towards the wet detention. As designated on the plans, off -site
stormwater will be diverted away from and around the wet detention pond after the site is
vegetated / stabilized; thus, minimizing the amount of stormwater that could potentially
mix with process water. In addition to the permanent pool, the additional storage
provided by the wet detention in the temporary pool for the 25yr, 24hr rainfall event is
64,665 cubic feet. Calculations were performed using the NCDWQ Stormwater Manual
Simple Method. Since volumes from the other drainage areas are previously captured,
the wet detention basin, as designed for all the drainage areas, provides additional factor
of safety in controlling runoff.
Site Design Parameters:
Each Retention Basin and Process Washout Pit/Treatment basin is designed to
accommodate all process related discharge water and stormwater runoff for a 25-year 24-
hour storm event and maintain minimum freeboard capacity as required by statute and
engineering practice (1 —ft minimum). The capacity for each of the detention and
treatment systems are designed to contain all runoff and process water and do not take
into consideration any losses associated with infiltration and surface ponding which will
happen(most conservative approach due to existing conditions). These design parameters
will ensure the capacity of the structures will perform as designed. The supporting
calculations (attachment 1) depict the total possible water to be contained (process and
runoff) recognizing no reductions. Calculations (using the Rational Method and NCDWQ
Simple Method) are also included which depict typical modeling conditions and design
factors (time of concentration, runoff coefficients, assumptions, etc.) normally utilized for
retention/detention structure design.
Earthen Berms- As designated per drawing with a minimum width of 6'.
Diversion Drainage Channel- The diversion drainage channel is to collect and divert
runoff which has not been treated and assist in regulating the pH and sediment in the final
clear well or retention basin as depicted on the site drawing.
pH Adjustment- Fortrans pH Control System with a treatment capacity of 75,000
gallons per day and by utilizing multiple systems sequentially the capacity may be
increased accordingly. Discharge pH will be between 6 and 9 per NCG 140000. pH
adjustment will occur in Bay 5 which has a volume capacity of 3,595 cf (26,892 gal)
pH Treatment/Sediment Basins (to be constructed)- This concrete structure as per
drawings will consist of 5 bays. The initial 4 bays will allow for settling. The 51h bay
will be behind and perpendicular to the other 4 bays and will be the bay for pH
adjustment. Once the water meets the appropriate pH level for discharge, it will be
discharge to the holding pond. The 4 settling bays are to accommodate 31,284 gallons of
process water and runoff for settling and pH adjustment. Each bay is 12'L x 60'W with a
depth of 3' to 7'. Capacities are as noted on the attached calculations sheet (volume per

bay) and total (Total Vol. Gallons/cult). These dimensions allow a minimum of one foot
of additional freeboard at designed capacity.
A sump pump will be used to maintain a water level of no higher than Elev. 1043' in the
4 settling bays. This ensures adequate stormwater storage above this elevation.
The maximum anticipated process water based on empirical information provided by the
owner is 4,000 gallons per day. As previously indicated, the volume capacity for the
process water totals 58,176 gallons, including the settling bays and bay utilized for pH
adjustment.
Retention/Detention Basin- Dimensions providing the temporary storage in the basin
collecting DA-4, which also collects DA-1, DA-2, and DA-3 , are approximately 247'x
72' x 4' (capacity of 64,655 cu.ft.). See attached basin sizing calculations and table for
verifications. This volume is the storage above and beyond the permanent pool volume
for the designed storm event and freeboard.
Cast Catch Basin with Lift Pump (if needed) - Each basin will be cast minimum 5'-8"
square with a minimum top opening of 2' and a grey iron class 30 round storm sewer
cover with a 1.75" thickness and perforated with tapered 1" holes. Each lift pump (1) is a
220v three-quarter horsepower electric pump(10400 gph) on a dedicated GFI circuit per
NC Building Code.
PVC Transfer and Recycle Pipe- 2"-6" PVC pipe for transfer and locations to be
determined based on site conditions to avoid utilities and concrete excavation where
possible.

DRAINAGE AREA INFORMATION
Description Stockpile area on upper pad
Drainage Area 26,745 sf 0.61 acre
Runoff Volume Captured 15,140 cf 113,255 gal
Description Contact area on lower pad
Drainage Area 26,741 sf 0.61 acre
Runoff Volume Captured 17,864 cf 133,632 gal
Process Water Captured 7,777 cf 58,176 gal
Drainage Area 16,102 sf 0.37 acre
Runoff Volume Captured 8,910 cf 66,651 gal
Description Entire drainage to basin
Drainage Area 178,596 sf 4.10 acre
Impervious Area 117,612 sf 2.70 acre
Runoff Volume Captured 64,665 cf 483,728 gal
Design Source: NCDWQ Stormwater Manual

_. _. ... _ _ _._ _. _ _.� �4
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CONCRETE SEDIMENT
BASINS FOR PROCESS WATER
Bay No.
Length
Width
Water
Depth
(Deep
End)
Water
Depth
(Shallow Average
End) Depth
Cubic Feet
Gallons
Bay 1
60 '
12 '
3.00 '
0.00 , 1.50 ,
Ba 2
60 '
121
4.00 '
0.00 , 2.00 '
Bay 3
60 '
12 '
5.00 '
0.00 ' 2.50 '
Ba 4
60 '
121
5.00 '
0.00 ' 2.50 '
Process Water Settlina Ba s Total =
4,182 cf
31,284 gal
Bav 5
60 '
121
5.00 ' 5.00 '
5.00 '
3,595 cf
26,892 gal
Process Water Treatment Bay Total =
3,595 cf
31,284 gal
Total Process Water Capacity
7,777 cf
58,176 gal
NOTE: A minimum of V of freeboard is allowed for at design capacity.
NOTE: Basin sizes shown above are based on the actual installed basins at the Hickory Plant. The depths
shown are ponding depths. Basins may be constructed at deeper depths.

WET DETENTION CALCULATIONS
DESIGN'DATA:-
Total Drainage Area = 4.1 acres Impervious Area = 2.7 acres
% Impervious Cover = 66% Permanent Pool Depth = 3 feet
-ice Area to Drainage Area = 2.64% (Reference: Table 10-1)
Ltal Surface Area of Permanent Pool = 4.1 ac x 43,560 sf/ac x 2.64% = 4715 sf
rebay Surface Area (20%) W 943 sf
ain Pool Surface Area (80%) = 3772 sf
TEMPORARY POOL RUNOFF VOLUME (Simple Method - Chapter 3):
Rv = .05 + .9 ' IA Rv = Runoff coefficient IA = Impervious Fraction
V = 3630 " Ro " Rv ' Area V = Runoff volume controlled(cf) Ro = Design storm rainfall depth(in)
Ro = 6.56 inch
Rv = 0.64
V = 62747 cubic feet
DIMENSION INFORMATION
Interior Basin Slopes 2:1 below permanent pool
Exterior Basin Slopes 3:1 for vegetation
At permanent pool elevation, provide 10' wide vegetated shelf; half should be 6" below pool level and half 6" above
Design
Elevations
Elevation of Basin Bottom 1034.0'
Depth for Sediment Storage in Bottom 1.0'
Depth of Permanent Pool (from above) 3.0'
Elevation of Permanent Pool 1038.0'
Depth for Temporary Storage to Control 6.6" Rain 4.0'
Elevation of Temporary Pool 1042.0' Primary Spillway Riser
porary Pool Elev. to Emergency Spillway 1.01
Elevation of 6' Emergency Spillway Crest 1043.0'
Flow Depth above Spillway 0.5' Max depth per NCDENR
Elevation to Pass Peak Discharge 1043.5'
Freeboard from Top of Weir Flow to Top of Dam 1.0'
Elevation of Top of Dam 1044.5'
ESTIMATED PEAK DISCHARGES
Q = CIA IZ = 5.33 inches per hour (t, = 5 min) (Reference NWS data for Mornanlon, NC)
Coefficients (C) : 110= 7.09 125 = 8.08 110 = 9.58
Cam„ = 0.5 Area = 1.31 C x A = 0.655
Ccommtc = 0.8 Area = 1.77 C x A = 1.416
0.6 Area = 0.94 C x A = 0.564
4.02 2.635
CAVERAGE = 0.66
Q2 = 14.04 CFS Qyu = 19.05 CFS Q25 = 21.71 CFS
Q160 = 25.75 CFS
DRAWDOWN ORIFACE (NCDWO - 2 to 5 days) Oriface Equation . Q = Co'A'(2gh)
Quantity to release = 64665 cubic feet Time = 3.0 days Rate = 0.249 cfs
Avg. head = 0042 - 1038) / 2 = 2.00 ft Cd = 0.6 g = 32.2 ft/s2
Area = 0.037 sf Dia. = 0.22 ft
Oriface Pipe Size = 2,592 in Try 2.50 in T = 3.2 days

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Designed By:
wr Date: 07M.
Checked By:
Date:
'Company:
Gateway Gracing K Development
Project Neme:
KeaConcrete
Pra tNo.:
Pipe Flow
Full
Inlet invert (n)
1034.00
Outlet invert (@)
1033.50
Material
Rough Cement (n.0.015)
Diameter (In)
24
K.
1.0
Manning% n
0.015 Mjlanbgm
Lengh (h)
100
Kp
0.017 Or use Table 8.07a
Ar- (1?)
3.1
Inlet Control
Oda
Elevation M Q 0" 1 1 H Q
CALCULATIONS
Weir Flow
Orifice Flow
Flper
Il Fuser
Cra31 Elevation (It)
1042
Crest Elevation (f0 it
Ptpe Diameter (In)
30
Pipe Oiamelor (In)
ox
Box
L (it)
L (1t)
W (it)
W (tt)
C.
3.1
C.
Area (t?) 4.9(
}t
Q
H Q
Primary Emergency
9 ilkwa Flow Spillway Flow
Bottom Elevation (it) 1
BOOM Width
Weir Equation O' C L M s
C.
O max I t Elevation Head Q 1 1 Q olb
1042.00
7.5
36.091
11,4882631
7.00
40.00
0.00
0.00
0.00
0
0.00
1042.00
0.00
0.00
0.00
CQMFIENT9
Pdmaryspulm-Y
1043,00
a.5
38.422
12,23019
8.00
42.78
1.00
24.35
1.D0
23.621
23.62
1043.00
0.00
0.00
23.62
Emergency Spillway
1043.$0
9
39.530
12.58476169
SSO
44.07
1.60
".73
1.50
28.929
26.93
1043.50
0.50
5.04
34.97
6" Flow above Spillway
1044,50
10
41.675
13.26550358
9.50
46.59
2.50
96.24
2.50
37.340
37.36
1044.50
1.50
30.86
68.21
Tap of Dam

DESIGN DATA FOR PAD STORAGE
UPPER PAD DK-TA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q=CIA
Contact Area: 26,745 sf 0.61 ac
' ity 121 = 8.08 inches per hour (1, = 5 min) (Reference NWS data for Morganton. NC)
►_ J Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 yr, 24 hr rainfall event: 26,745 sf x 6.56 in divide by 12.00 in -
14,621 cl
LOWER PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q=CIA
Contact Area: 26,741 sf 0.61 ac
Intensity I25 = 8.08 inches per hour (t, = 5 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 yr. 24 hr rainfall event: 26,741 sf x 6.56 in divide by 12.00 in -
14,618 c
GRAVEL PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 16,012 sf 0.37 ac
Intensity 12s = 8.08 inches per hour (1, = 5 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 2.67 CFS
Storage for 25 yr, 24 hr rainfall event: 16,012 sf x 6.56 in divide by 12.00 in =
8,753 c
SPILLWAY DATA:
Weir Equation Q= C L Hi'S, where C = 2.8, L = width of spillway, H = depth of flow
Design Q25, Use 5 CFS for all storage outlets
Try 6' Weir:
= 2.8 L= 6ft H= 0.50ft Q= 5.94CFS
6'WeirisOK
L'd,r VATION DATA:
Upper Pad
Lower Pad Gravel Pad
Top of Berm Elevation
1066.5 '
1047.5 ' 1047.5 '
Flow through Spillway Elevation
1065.5 '
1046.5 ' 1046.5 '
25yr, 24hr Storage Elevation
1065.0 '
f 046.0 ' 1046.0 '
Note: f' of Freeboard from top of spillway flow to top of berm_

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M

" POINT PRECIPITATION'S
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
MORGANTON, NORTH CAROLINA (31-5838) 35.7306 N 81.6717 W 1148 Feet
from "Precipitation -Frequency Atlas of the United States" NQAA Atlas 14, Volume 2, Version 3
G.M. Bonnin, D. Martin,13. Lin, T. Parzybok, M.Yekta, and D. 12iley
NOAA, National Weather Service, Silver Spring, Maryland. 2004
Extracted: Mon Jul 7 2003
.EP*
t-in-
lsase precipitation frequency estimates are based on an v nv.@ maxima We(i*, AEP is the Annual Exceedance Protobky.
east o the documentation for more information. NOTE: Formatting farces estimates near zero to appear as zero.
�� * Upper bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
AEP** 5 10 15 60 12060
min min hr hr hr hr hr day day day day day day day
Y) E
0.45 0.72 0.90 1.24 1.56 1.82 L96 2.42 3.03 3.d7 4.38 4.90 5.6b ED 8.43 IQ29 12.85 15.21
=
0.56 0.90 1.14
I.b2
2.08 2.45 2.63 3.2! 4.00 4.95 5.85 6.47 7.33 8.19
10.57 12.59 15.45
18.15
10
0.64 1.02 1.29 1.87
2.44
2.90 3.12 3.79 4.69 5.84 6.86
7.55 8.4b 9.37 [ 1.98 14.02 17.01
19.90
25 0.73 1.17 1.48 2.20
2.92
3.52 3.81 4.61
5.63
7.05 8.22
8.96 9.91 10.84
13.77 15.74 18.87
21.97
50 0.80 l.28 L62 2.44
3.30
4.02
4.39 5.29
6.38
7.99 9.26
10.06
I1.01 1194
15.11
l694 20.i9
23.43
3.70 4.56
5.41 6.04
7.18 8.98 iD,34
11.18
12.13 13.04
16.4b
18.22 21.46
24,84
100 0.87 1.39 1.75 2.b9
200
0.95 I.50 1.90 2.95
4.14 5.15
5.72 6.88
8.65 10.00 E4fl
l2.35
13.28 14.16 17.83 19.42 22.71
26.21
500 1.05 t.65 2.08 E3E]Kfl
6.02
b"76 $.I4
9.32 II.44
13.fl2
13.96
I4.85 15.68
19.67
20.98 24.3I
27.96
1 000 I.13 1.78 2.23 3.6!
5.27
6.76
7.66 9.22
10.38
l2.50
14.27
15.26
Ib.09
16.88
21.12
22.16
25.S1
29.26
i ne upper oouna at me conmence interval at w% oomiaence level is me value wrucn 5% or the simulated quanwe values for a given frequency are greater than.
'These preelpitalion frequency estimates are based on an nnnntol maxima se&s AEP is the Annual Exceedance probability.
lease refer to the documentation for more information. NOTE: Formatting prevents estimates near zero to appear as zero.
* Lower bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
AEP** 5
(1-in- min
[min
m n
mirl
min
m1 in
Fhr
60
hr hr 11 hr 14 �� h8r 11 day ll daY II day i11 f day �21 I day 30 I day l�day
�ttp:lldipper.nws.noaa.gov/cgi-binPndsclbuildout.perl?type=pf&units=us&series=am&statename--NORTi I-i-C... W1200f

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bay) and total (Total Vol. Gallons/cuft). These dimensions allow a minimum of one foot
of additional freeboard at designed capacity.
A sump pump will be used to maintain a water level of no higher than Elev. 1043' in the
4 settling bays. This ensures adequate stormwater storage above this elevation.
The maximum anticipated process water based on empirical information provided by the
owner is 4,000 gallons per day. As previously indicated, the volume capacity for the
process water totals 58,176 gallons, including the settling bays and bay utilized for pH
adjustment.
Retention/Detention Basin- Dimensions providing the temporary storage in the basin
collecting DA-4, which also collects DA-1, DA-2, and DA-3 , are approximately 247'x
72' x 4' (capacity of 64,655 cu.ft.). See attached basin sizing calculations and table for
verifications. This volume is the storage above and beyond the permanent pool volume
for the designed storm event and freeboard.
Cast Catch Basin with Lift Pump (if needed) - Each basin will be cast minimum 5'-8"
square with a minimum top opening of 2' and a grey iron class 30 round storm sewer
cover with a 1.75" thickness and perforated with tapered 1" holes. Each lift pump (1) is a
220v three-quarter horsepower electric pump(10400 gph) on a dedicated GF1 circuit per
NC Building Code.
PVC Transfer and Recycle Pipe- 2"-6" PVC pipe for transfer and locations to be
determined based on site conditions to avoid utilities and concrete excavation where
possible.
SUMMARY DESIGN STATEMENT -- The basins are designed to contain the 25 yr
storm event with the mandatory minimum V of freeboard for capacity and the
design parameters would yield a net discharge compliant with the permit effluent
limits as follows: pH between 6 to 9, Total suspended solids (TSS) of 34mg/l or less,
and Settleable Solids (SS) of 5ml/l or less.

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FIGURES
Figure l: Site Location Map
Figure 2: Aerial View of Surrounding Properties around the
Morganton Plant
Figure 3: Site Layout Map with Buildings, Dry Mix Concrete
Plant, and Proposed Process Washwater /
Stormwater Recycle System

Map Name. Unknown Map Center: 0350 43' 41.51" N 0810 44' 55.85" W
Print Date: 02/10/11 Horizontal Datum: NAD27
Z
1 f
Z
a
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- M�RGA4Wf0
Z
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,�"�
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C ( C 11%,
fth' tofu i
tl
N 6.° W
M71
MN 6-71 ° W
081 ° 45'
0.00" W 081 ° 45'
0.00" W 081 " 44'
0.00" W 081' 44'
0.00" W
SCALE 1:24000
0 1000 20W
YARDS
SITE LOCATION MAP
KERR HRM COCNRETE - MORGANTON
PLANT
FIGURE 1 JOB NO. 1134-001

PWA
RCDENR
N�C�wa
£Mnrtp+w u D Nmp. Rc cr
Division of Energy, Mineral & Land Resources
Land Quality SectionlStormwater Permitting
National Pollutant Discharge Elimination System
PERMIT NAME/OWNERSHIP CHANGE FORM
FOR AGENCY USE ONLY
Date Received
Year
Month Da
I. Please enter the permit number for which the change is requested.
NPDES Permit (or) Certificate of Coverage
N 10 1 $ 10 1 1 1 1 1 1 1 N 10 G 1 14 10 14 1 1 1 0
ll. Permit status prior to requested change.
a. Permit issued to (company name): Kerr's HRM Concrete - Morganton Plant
b. Person legally responsible for permit: Roger Kerr
First MI Last
Presidents
Title
c. Facility name (discharge):
d. Facility address:
e. Facility contact person:
P b- Box 1924
Permit Holder Mailing Address
Hickory N.C. 28603
City State Zip
$2)322-3157
Phone Fax
108 Industrial Blvd
W
Address
Morganton NC 28655
City State Zip T
First 1 Ml 1 Last Phone
Ill. Please provide the following for the requested change (revised permit).
a. Request for change is a result of: ® Change in ownership of the facility
❑ Name change of the facility or owner
If other please explain:
b. Permit issued to (company name):
c. Person legally responsible for permit:
d. Facility name (discharge):
e. Facility address:
f. Facility contact person:
Southern Concrete Materials
James Combest
first MI Last
President
Title
PO Box 5395
Permit Holder Mailing Address
_ Asheville NC 28813
City State Zip
[phone] jcombest(a scmusaxom
Phone E-mail Address
Address
City State Zip
First MI Last
Phone E-mail Address
IV. Permit contact information (if different from the person legally responsible for the permit)
Revised Jan. 27, 2014

NPDES PERMIT NAME/OWNERSHIP CHANGE FORM
Page 2 of 2
' Permit contact: Jeff Lamm
First M[ Last
Vp-Environmental And Safety
Title
PO Box 5395
Mailing Address
Asheville NC 28813
City State Zip
[phone] [e-mail] (ILU l �"
Phone E-mail Address
V. Will the permitted facility continue to conduct the same industrial activities conducted prior I
to this ownership or name change?
® Yes
❑ No (please explain)
V1 Required Items: THIS APPLICATION WILL BE RETURNED UNPROCESSED IF ITEMS
ARE INCOMPLETE OR MISSING:
❑ This completed application is required for both name change and/or ownership change
requests.
❑ Legal documentation of the transfer of ownership (such as relevant pages of a contract deed,
or a bill of sale) is required for an ownership change request. Articles of incorporation are
not sufficient for an ownership change.
The certifications below must be completed and signed by both the permit holder prior to the change, and
the new applicant in the case of an ownership change request. For a name change request, the signed
Applicant's Certification is sufficient.
PE ITTEE CERTIFICATION (Permit holder prior to ownership change):
1, , attest that this application for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. I understand that if all required parts of this application are not
completed and that if all required supporting information is not included, this application package will be
returned as ' complete. L r
Signature Date
APPLICANT CERTIFICATION
1, attest that this application for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. 1 understand that if all required parts of this application are not
complet at if all required supporting information is not included, this application package will be
r ed as incor9blete. _ _/I
S cr�_?�1�
Date
PLEASE SEND THE COMPLETE APPLICATION PACKAGE TO:
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Revised Jan. 27, 2014

ATTACHMENTS
Attachment A: Independent Consultants Calculations
Attachment B: NC DENR — Division of Water Quality Stream
Classification Table for Burke County

DRAINAGE AREA INFORMATION
uescription Stocxpile area on upper pati
Drainage Area 26,745 sf 0.61 acre
Runoff Volume Captured 15,140 cf 113,255 gal
uescnption Lontact area on lower paa
Drainage Area 26,741 sf 0.61 acre
Runoff Volume Captured 17,864 cf 133,632 gal
Process Water Captured 7,777 cf 58,176 gal
Description Portion of gravel pad
Drainage Area 16,102 sf 0.37 acre
Runoff Volume Captured 8,910 cf 66,651 gal
Description Entire drainage to basin
Drainage Area 178,596 sf 4.10 acre
Impervious Area 117,612 sf 2.70 acre
Runoff Volume Captured 64,665 cf 483,726 gal
Design Source: NCDWQ Stormwater Manual

CONCRETE SEDIMENT
BASINS FOR PROCESS WATER
Bay No.
Length
Width
Water
Depth
(Deep
End)
Water
Depth
(Shallow
End)
Average
Depth
Cubic Feet
Gallons
Bay 1
60 '
12 '
3.00 '
0.00 '
1.50 '
Bay 2
60,
12 '
4.00 '
0,00 ,
2.00 '
Bay 3
601
12 '
5.00 '
0.00 ,
2.50 '
Bay 4
60'
12'
5.00'
0.00'
2.50'
Process Water Settlinq Ba s Total =
4,182 cf
31,284 gal
i
Bay 5
60 '
12 '
5.00 '
5.00 ' 5,00 '
3,595 cf
26,892 gal
Process Water Treatment BayTotal =
3,595 cf
31,284 gal
Total Process Water Capacity =
7,777 cf
58,176 gal
NOTE: A minimum of Vol freeboard is allowed for at design capacity.
NOTE: Basin sizes shown above are based on the actual installed basins at the Hickory Plant. The depths
shown are ponding depths. Basins may be constructed at deeper depths.

WET DETENTION CALCULATION
DESIGN DATA:•
Total Drainage Area = 4.1 acres
Impervious Area = 2.7 acres
% Impervious Cover = 66%
Permanent Pool Depth = 3 feet
;e Area to Drainage Area = 2.64%
(Reference: Table 10-1)
Rey d Total Surface Area of Permanent Pool = 4.1ac x 43,560 sf/ac x 2.64% = 4715 sf
Req'd Forebay Surface Area (20%) =
943 sf
Req'd Main Pool Surface Area (80%) =
3772 sf
TEMPORARY POOL RUNOFF VOLUME Sim le Method - Chapter 3
Rv = .05 + .9 * IA Rv = Runoff coefficient IA= Impervious Fraction
V = 3630 * Ao ' Rv * Area V = Runoff volume controlled(cf) RE) = Design storm rainfall depth(in)
Ro = 6.56 inch
Rv = 0.64
V = 62747 cubic feet
DIMENSION INFORMATION
interior Basin Slopes 2.1 below permanent pool
Exterior Basin Slopes 3:1 for vegetation
At permanent pool elevation, provide 10' wide vegetated shelf; half should be 6" below pool level and half 6" above
Design
Elevations
Elevation of Basin Bottom
1034.0'
Depth for Sediment Storage in Bottom
1.0'
Depth of Permanent Pool (from above)
3.0'
Elevation of Permanent Pool
1038.0'
Depth for Temporary Storage to Control 6.6" Rain
4.0'
•ation of Temporary Pool
1042.0' Primary Spillway Riser
porary Pool Elev. to Emergency Spillway
1.0'
Elevation of 6' Emergency Spillway Crest
1043.0'
Flow Depth above Spillway
0.5' Max depth per NCDENR
Elevation to Pass Peak Discharge
1043.5'
Freeboard from Top of Weir Flow to Top of Dam
1.0'
Elevation of Top of Dam
1044.5'
ESTIMATED PEAK DISCHARGES
Q = CIA IZ = 5.33
inches per hour (t, = 5 min) (Reference NWS data for Morganton, NC)
Coefficients (C) : 110= 7.09
I25 = 8.08 1100 = 9.58
CAMSS = 0.5 Area =
1.31 C x A = 0.655
Coo„ rete = 0.8 Area =
1.77 C x A = 1.416
CX-11-1 = 0.6 Area =
0.94 C x A = 0.564
4.02 2.635
CAVERAGE = 0.66
QZ = 14.04 CFS Qto =
19.05 CFS Q25 = 21.71 CFS
Qt0a = 25.75 CFS
DRAWDOWN ORIFACE (NCDWO - 2 to 5 days)
Odface Equation . Q = Co*A*(2gh)'
Quantity to release = 64665 cubic feet
Time = 3.0 days Rate = 0.249 cfs
Avg. head = (1042 - 1038) / 2 = 2.00 ft
Cd = 0.6 g = 32.2 ft/s2
Area = 0.037 sf Dia. = 0.22 ft
Oriface Pipe Size = 2.592 in
Try 2.50 in T = 3.2 days

Designed By:
NKT Data: OM:
Checked By:
Date:
Company:
Gateway Grading a Govelopment
Project Name:
Kerr Concrete
Project No.:
.-
Pipe Flow
Fun
wat invert (fill
1 D34.00
Outlet Invert (R)
1033-W
Material
Raugh Cement (n-0,015)
Diamalp (in)
24
R.
1,0
Mantttngh n
Oki S MIg i p
Lem M
Igo
1tp
0.017 a 6.07a
Area (t?)
3.1
SPILLWAY DESIGN
Inlet Control Weir Flow
Drill" Rlser
D.8 Crest Elevasrnt (h) 1042
Pipe Diameter (In) 30
Box
L (77)
w (a)
C. 3.1
Elevation H O Ou6et I I H O 1 1 H O
1042.D0
7.5
36.091
17.41l8293t
7.OB
40.00
0.00
0.00
1043.D0
6.5
38.422
1223019
6.00
42.76
1.00
24.35
1U43.50
9
39.536
12.11 131$9
8.50
44,07
1.50
44,73
1044.60
10
41.675
73.26550358
9.50
48.59
2.50
96.24
Orifice Flow
Resat
Crest Elevation (h) 1042
Pipe Diamatar (in) 30
lax
L (It)
W (1t)
C. 0.8
Area (e) 4.9087
H D
Soiliwav Flow
8onom Elevation (it) 1
Bottom Width
r Equation tr C L H' s
C~
o max I l Elevation Head a 11 Q cis
0.00 0
0.00
t.00
23.821
23.62
1.50
28.929
28.93
2.50
37.348
37.35
Iway
1042.00
0.00
0-00
0.00
COMMENTS
Primary Spec-Y
1043,00
0.00
0.00
23.62
Emergency Spillway
1043.50
0.50
9.94
34.e7
6' Flow above Spillway
1044,50
1 50
WAS
y. 69.21
Yap of Dam

DESIGN DATA FOR PAD STORAGE
UPPER PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 26,745 sf
0.61 ac
I Ity 125 = 8.08
inches per hour (t, = 5 min) (Reference NWS data for Morganton. NC)
Ru..,.rf Coefficient (C) = 0.9
Q25 = . 4.46 CFS
Storage for 25 yr, 24 hr rainfall event:
26,745 sf x 6.56 in divide by 12.00 in -
14,621 c
LOWER PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 26,741 sf
0.61 ac
Intensity I25 = 8.08
inches per hour (t, = 3 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 yr, 24 hr rainfall event:
26,741 sf x 6.56 in divide by 12.00 in =
14 c
GRAVEL PAD DATA. 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 16,012 sf
0.37 ac
Intensity I25 = 8.08
inches per hour (tt = 5 nun) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 2.67 CFS
Storage for 25 yr, 24 hr rainfall event:
16,012 sf x 6.56 in divide by 12.00 in =
8,753 c
SPILLWAY DATA:
Weir Equation Q= C L H �'S, where C = 2.8, L = width of spillway, H = depth of flow
Design Q25: Use 5 CFS for all storage outlets
Try 6' Weir:
= 2.8 L =
6 ft H = 0.50 ft Q = 5.94 CFS
6' Weir is OK
ELEVATION DATA:
Upper Pad Lower Pad Gravel Pad
Top of Berm Elevation
1066.5 ' 1047.5 ' 1047.5 '
Flow through Spillway Elevation
1065.5 ' 1046,5 ' 1046.5 '
25yr, 24hr Storage Elevation
1065.0 ' 1046.0 ' 1046.0 '
Note: l' of Freeboard from top of spillway flow to top of berm.

' POINT PRECIPITATION'S ,
FREQUENCY ESTIMATES%V o
FROM NOAA ATLAS 94
MORGANTON, NORTH CAROLINA (31-5838) 35.7306 N 81.6717 W 1148 feet
from "Precipitation -Frequency Atlas of the United States" NOAA Atlas 14, Volume 2. Version 3
G.M. 13onnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
Extracted: Mon Jul 7 2008
30
119EHIH
60
48 hr
HH11119
lease - -;nilaation fregtremry estimates are based on an im ems, AEP is the A. wal Exceedance Probability.
:ale the documentation for more information. NOTE: Formatting forces estimates near zero to appear as zero.
* Upper bound of the 90% confidence interval �+
Precipitation Freauencv Estimates (inches)
5
111119111
lQ
15
30
60
120
3
6
12
24
48
4
7
10
20
30
45
60
min
min
min
min
spin
hr
hr
][[[A[[[[
hr
day
day
ay
day
50 110.80 I�1.62 12.44 13.30 4.02 4.39 L3.9 j 6�j7.99 2.26I..06
I00 0.$7 1.39 1.75 2.b9 3.70 4.5b 5.0 [ 6.04 7, i 8 I $98 10.34 I
20D 0.95 1.50 l.90 2.95 4.14 5.15 5,72 6.88 8.05 10.00 11.47 12.35
500 1.05 l.d5 2.08 3.31 4.75 6.02 6.7d 8.14 9.32 11.44 13A2 13.W
1000 1.13 1.78 2.23 3.61 5.27 6.76 7.d6 9.22 l0.38 [ 2.60 14.27 15.26
The upper bound of the Confidence interval at 90% confidence level is the value Which 5% of the simulated quantle values fo
' These precipitation frequency estimates are based on an ggiMt maxima series. AEP is the AnrKW Exceedanw Probability.
'lease refer to the documentation for mote information. NOTE: Formatting prevents estimates near zero to appear as zero.
L
F(IAEAn-
* tower bound of the 90% confidence interval
Precipitation Freauenev Estimates (inches)
hrtn-ll(l;nne.r_nw,,.nnaa-Gov/cLyi-bin/hdse/buildout.perl?type=pf&hits=us&series=am&statename=NORTH+C.,, 7/7/20N

Attachment B
NC DENR — Division of Water Quality Stream Classification Table for
Burke County

NC DENR - DIVISON OF WATER QUALITY
.0308 CATAWBA RIVER BASIN
Class
ame of Stream Description Class Date Index No.
Muddy Creek From a point 0.5 mile WS-IV 04/01/99 11-32-(6)
upstream of mouth to
Catawba River
CATAWBA RIVER (including From a point 1.2 miles WS-IV;Tr,CA 05/01/07 ll-(32.3)
backwaters of Rhodhiss Lake upstream of Canoe Creek to
below elevation 995) a point 0.7 mile upstream
of Canoe Creek (Morganton
water supply intake)
2B .0300
CATAWBA RIVER (including
From a point 0.7 mile
WS-IV
08/03/92
11-(32.7)
backwaters of Rhodhiss Lake
upstream of Canoe Creek to
below elevation 995)
a point 0.6 mile upstream
of Warrior Fork
Canoe Creek
From source to Burke County
C
03/01/62
11-33-(1)
SR 1248
Canoe Creek
From Burke County SR 1248
WS-IV
08/03/92
11-33-(2)
to Catawba River
Silver Creek
From source to a point 1.3
C
03/01/62
11-34-(0.5)
miles downstream of Clear
Creek
Brindle Creek
From source to Silver Creek
C
03/01/62
11-34-1
Hall Creek
From source to Silver Creek
C
03/01/62
11-34-2
ine Branch
From source to Hall Creek
C
03/01/62
11-34-2-1
Anderson Branch
From source to Silver Creek
C
03/01/62
11-34-3
Jack Branch
From source to Silver Creek
C
03/01/62
11-34-4
James Branch
From source to Silver Creek
C
03/01/62
11-34-5
Clear Creek (State Hospital
From source to Broughton
C;HQW
08/03/92
11-34-6-(1)
Reservoir)
Hospital Water Intake
Clear Creek
From Broughton Hospital
C
03/01/62
11-34-6-(2)
Water Intake to Silver Creek
Sutterwhite Creek
From source to Clear Creek
C
03/01/62
11-34-6-3
Shoal Creek
From source to Broughton
C;HQW
08/03/92
11-34-6-3-1-(1)
Hospital Water Intake
Shoal Creek
From Broughton Hospital
C
03/01/62
11-34-6-3-1-(2)
Water Intake to Sutterwhite
Creek
Chestnut Flat Branch
From source to Shoal Creek
C;HQW
08/03/92
11-34-6-3-1-3
Double Branch
From source to Clear Creek
C
03/01/62
11-34-6-4
Silver Creek
From a point 1.3 miles
WS-IV
08/03/92
11-34-(6.5)
downstream of Clear Creek
to Catawba River
Little Silver Creek
From source to Burke County
C
03/01/62
11-34-7-(1)
SR 1150
Little Silver Creek
From Burke County SR 1154
WS-Iv
08/03/92
11-34-7-(2)
to Silver Creek
liley Fork (formally
From source to School for
C;HQW
08/03/92
11-34-8-(1)
sled Burkmont Creek)
Deaf Water Intake
Bailey Fork
From School for Deaf Water
C
03/01/62
11-34-8-(2)
Intake to U.S. Hwy. 64
Page 10of40
2011-02-05 07:18:53

Chalam Pakala Engineering and Environment
10017 Allyson Park Dr., Charlotte, NC 29277 Tel: [phone] Fax
May 24, 2011
JUN 1 0 2011
Mr. Roger Kerr, VP Sales and Treasurer
Kerr HRM Concrete DENR - WATER OUAM
P.O. Box 1924 Wedandu S ft=&W erarxh
Morganton, North Carolina 28603
Re: Application for Rescinding the NPDES Permit Based on the Current
Process 1 Stormwater Recycling System and Retention Pond at Morganton
Concrete Plant
Kerr HRM Concrete — Morganton Plant
108 Industrial Blvd_
Morganton, Burke County, North Carolina 28655
CPEES Project No. 1 134-0_0.1
Dear Mr. Kerr:
Thanks for the opportunity to provide our environmental and civil engineering consulting
services for your facility located in Morganton, North Carolina. Attached please find an NPDES
Permit Rescinding request along with Authorization -to -Operate report for the Process /
Stormwater Recycling System for Kerr Concrete - Morganton Plant located in Morganton, North
Carolina. The A to C Report includes:
�� • NC DENR NPDES General Permit Application NCG140000;
• Check for $100 made payable to NC DENR;
• Site map showing the delineation of drainage area contributing to the process
washwater;
• Site layout map showing the proposed location of the process 1 stormwater recycling
system;
• 25 yr 24-hr stormwater runoff calculations;
• Detailed design, construction drawings along with construction specifications for the
proposed process and Stormwater recycling system;
• Site Location Map; .
It is my pleasure to complete this important project for Kerr Concrete and please call me at (704)
541-4042 if you have any questions or comments on this A to C permit application package.
Respectfully submitted,
CP Engineering and Environmental Solutions
(A Cost Effective Solution Provider for Manufacturing
�o,.40
f�ss�o• .!y,�
SEAL'•
19907
Chalam V. Pakala, P.E. �$'�„ t •; v
Registered, 19807 ( �
Managing Principal ��.V.,pP�
A to C Permit Application Package

May 24, 2011
Mr. Ken Pickle, Environmental Engineer H
NC DENR — Stormwater Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 27669-1617
Re: Application for Rescinding the NPDES Permit Based on the Current
Process / Stormwater Recycling System and Retention Pond at Morganton
Concrete Plant
Kerr HRM Concrete — Morganton Plant
108 Industrial Blvd.
Morganton, Burke County, North Carolina 28655
CPEES Project No. 1134-001
NPDES General Permit No.: NCG140000
Certificate of Coverage: Not issued yet
Dear Mr. Pickle:
Kerr Concrete (KERR) is pleased to submit the attached NPDES Permit rescinding request along
with Authorization -to -Operate (A to O) permit for Process / Stormwater Recycling System for
Kerr Concrete— Morganton Concrete Plant located in Morganton, North Carolina. The A to O
Report includes:
• NC DENR NPDES General Permit Application NCG140000;
• Check for $100 made payable to NC DENR;
• Site map showing the delineation of drainage area contributing to the process
wastewater;
• Site layout map showing the proposed location of the process / stormwater recycling
system;
• 25 yr 24-hr stormwater runoff calculations;
• Detailed design, construction drawings along with construction specifications for the
proposed process and stormwater recycling system;
+ Site Location Map;
KERR sincerely appreciates your cooperation and progress of this project. Please call me at 828-
322-3157 or Mr. Chuck Pakala of CPEES at 704-5414042 if you have any questions or
comments on this permit request.
Respectfully submitted,
Roger Kerr
VP Sales and Treasurer
Attachments: A to C Permit Application Package

Permit Application for Authorization to
Operate (A to O) a Process /Stormwater
Recycling System
NPDES General Permit No.: NCG I40000
Certificate of Coverage: Not Issued Yet
Prepared for:
Xerr Concrete- Norganton Aant
108 Industrial Blvd.
Morganton, Burke County, North Carolina 28655
kCAq
SEAL
19607
V.
CPEES Project No. 1134-001
May 24, 2011
Prepared by:
Chalam Pakala Engineering and Environmental Solutions
10017 Allyson Park Dr.,
Charlotte, North Carolina 28277
Tel [phone]/ Fax: [phone]
Email: [e-mail]

Permit Application for Authorization to Operate
(A to O) Process /Stormwater Recycling System
Kerr Concrete- Morganton Plant
Morganton, North Carolina
NPDES General Permit No.: NCG 140000
Certificate of Coverage: Not issued yet
TABLE OF CONTENTS
1.0 FACILITY DESCRIPTION..............................................................................................1
2.0 FACILITY OPERATIONS................................................................................................1
3.0 PROCESS WASHWATER CALCULATIONS...............................................................2
4.0 STORMWATER RUNOFF CALCULATIONS FOR A 25 YEAR AND 24-HR RAIN
EVENT....................................................................................................................................... 3
5.0 EXISTING STORMWATER / PROCESS WASHWATER RECYCLE SYSTEM
DESIGN AND CONSTRUCTION DETAILS.......................................................................4
6.0 WATER BALANCE CALCULATIONS..........................................................................4
7.0 A to C CONSTRUCTION PERMIT APPLICATION....................................................5
TABLES
Table 1: Runoff Volume Calculations for a 25 yr, 24-hr Storm Event
FIGURES
Figure 1: Site Location Map
Figure 2: Aerial View of Surrounding Properties around the Morganton Plant
Figure 3: Site Layout Map with Buildings, Dry Mix Concrete Plant and Proposed Location of
Process Washwater / Stormwater Recycle System
ATTACHMENTS
Attachment A: Independent Consultants Calculations
Attachment B: NC DENR -- Division of Water Quality Stream Classification Table for Burke
County
CP Engineering and Environmental Solutions i A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: ci•pakalaewarolina.rr.com 1081ndustrial Blvd.

Permit Application for Authorization to Operate
(A to O) Process /Stormwater Recycling System
Kerr Concrete— Morganton Plant
Morganton, North Carolina
NPDES General Permit No.: NCG140000
Certificate of Coverage: Not Yet Issued
1.0 FACILITY DESCRIPTION
Kerr Concrete -Morganton Plant located at 108 Industrial Blvd.
Morganton, Burke County, North Carolina, is a dry batch ready mix concrete plant for
commercial supply. The primary Standard Industrial Classification (SIC Code) for the facility
is 3273 (Ready Mixed Concrete). The approximate location of the facility on a US Geological
Survey Map is provided on Figure 1. The geographic site location can also be given as 350 43'
41.76" North Latitude and 810 44' 54.94" West Longitude. The subject facility is surrounded
by wooded areas on the east, west and southern side of the site and heavy industrial facilities
on north and northwestern side of the site. The details of surrounding properties are displayed
on the Aerial Map, Figure 2, attached with this report. The Morganton Plant is owned by
KERR and occupies approximately 10.76 acres of land with the paved area for operations.
However, approximately 0.61 acres of area (Drainage Area-2) will be exclusively used for
process/washwater/recycle operations. The stormwater from the facility drains to a 25yr, 24 hr
stormwater retention basin located east of the property. The process water from the facility
goes to a five pit system at the site. The stormwater, if it ever overflows from the retention
pond, would go to Little Silver Creek and to Silver Creek and eventually to Catawba River
located north of the site, Figure 1. Based on my review with NC Division of Water Quality
web site, it is our understanding that Silver Creek is classified as Class WS-IV (see attached
table obtained from NC DENR -- Division of Water Quality Section web site for details -
Attachment B). The Morganton Plant will consist of an office building, a ready mix concrete
plant next to the office building, cement and fly -ash silos, a permanent pit system for
washwater, and gravel storage areas, and a concrete truck drum wash area. Morganton Plant
will have approximately 2 to 10 trucks and operates 8 hrs/day, 5 days/wk and 30 to 50
wks/year, depending upon the weather and business conditions.
2.0 FACILITY OPERATIONS
The facility operations will include: a dry batch concrete plant with vacuum system for dust
control system, cement and fly -ash silos with a dust control central vacuum system, sand and a
small portion of gravel storage areas with limited water sprinkler system (taken into process
water consideration) and a truck washing area.
CP Engineering and Environmental Solutions I A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cvpakalaa,carolina.rr.com 1081ndustrial Blvd,

Based on the request from the user, typical operations from this plant include: loading the
sand, gravel, and cement and fly -ash into a weigh scale which drops the dry mix into cement
trucks as a dry batch concrete mix. The dust extracted from the cement silo will be processed
through a NC DENR Division of Air Quality permitted bag filter system before released into
the atmosphere.
The loaded cement truck with concrete mix will be brought to a truck washing area for a
surficial wash before it goes out for the delivery. Occasionally, any left over concrete in the
concrete drum will be either used in making blocks or washed of at the plant in a truck
washing bay. Thus, process water will be generated at the plant for either recycling or
disposal. Based on our understanding of the facility operations, wash chemicals are located
near the wash pit area to collect any potential spills from these storage vessels. The oil storage
tank was kept far from the pits and it is secondary contained. Therefore, no oily water or
stormwater contaminated with chemicals will be released to the environment from the facility.
The facility has not applied for a NPDES General Permit (NCG140000) in the past and the
reason was that the stormwater discharge from the facility is contained within an on -site 25yr-
24hr stormwater retention basin. However, Kerr is submitting the NPDES permit application
permit and be complaint with the State Division of Water Quality regulation. To meet the
NPDES General Stormwater Permit requirements, a Stormwater Pollution Prevention Plan
(SWPP Plan) with Best Management Practices for potential stormwater pollutant sources shall
be prepared and implemented at the site.
All truck drums and drum chutes will be washed at the end of the day before parked for good.
Therefore, the locations where process washwater will be generated at the plant are:
• Surficial cleaning of the drum before leaving the site,
• Cement drum washing if left over concrete is brought back to the plant; and
• Drum and drum chutes cleaning at the end of the day.
3.0 PROCESS WASHWATER CALCULATIONS
Based on our discussions with the Morganton Plant Manager, it is our understanding that
approximately 25 to 40 batches per day will be completed in the summer time and 25 batches
per day will be completed in the winter time using 10 trucks. Approximately 5 to 10 gals of
water will be used for surficial washing of the truck per batch. Approximately 5 to 10 gals of
water will be used to wash drum chutes per truck per day at the end of the day.
Approximately 200 gals per day per drum will be used to wash at the end of the day.
CP Engineering and Environmental Solutions 2 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cmakalaa,carolina.rr.com 108Industrial Blvd.

Description of Operation
Unrt
Total
# Trucks worst -case
trucks
10
# Batches per day using 15 trucks
worst -case scenario -summer time
Batches
40
Surficial cleaning
10 als/batch
400
Chute cleaning at the end of the day
10 a!s/truck
100
Drum cleaning at the end of the day
150gals/truck
1,500
Leftover concrete washing from the drum 5 batches
200gals/batch
1,000
Total(gals/day)
3,050
4.0 STORMWATER RUNOFF CALCULATIONS FOR A 25 YEAR AND
24-1IR RAIN EVENT
According NC DENR-Division of Water Quality NPDES General Stormwater Permit
requirements, recycle systems are considered wastewater treatment per 1 SA NCAC 2H .0203
and all wastewater discharges must meet a total suspended solids (TSS) limit of 30 mg/!, a
settleable solids (SS) limit of 5 ml/l, and pH between 6-9 SU or must demonstrate that the
recycle system has sufficient capacity to contain 25-year, 24-hr rainfall event plus one foot of
freeboard under the design operating conditions.
To obtain an economic and workable solution, the existing recycling system design includes,
the truck washing operations and process washwater generating points. Approximately 26,741
sq ft or 0.61 acres of area including the small area for gravel washing is expected to contribute
to the process washwater from the facility (Figure 3). All washing operations beyond this
designated area are prohibited at the facility and the drivers will be trained to adhere to this
new policy for meeting the Stormwater regulations. A third party calculations supplied to
CPEES for a 25-yr, 24-hr rain event on 0.61 acres and the necessary storage volume are
provided with this report in Table 1.
Please note, during a rain event, no plant operations will be conducted. Therefore, no
washwater is accounted for in the proposed recycle system design when 25-yr, 24-hr rain
event for stormwater is considered.
CP Engineering and Environmental Solutions 3 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cvpakala(a�,carolina.rr.com 108 industrial Blvd.

5.0 EXISTING STORMWATER / PROCESS WASHWATER RECYCLE
SYSTEM DESIGN AND CONSTRUCTION DETAILS
The current recycle system is designed to capture all process washwater and stormwater from
a 25-yr, 24-hr rainfall event from the subject plant wash areas. The recycle system is designed
to hold entire runoff amount from the designed storm event. The approximate drainage area
involved in the process washwater is estimated to be 0.61 acres (Figure 3). The 25 year, 24-hr
runoff volume from this drainage area is estimated to be 7,777 cft. A recycle system was
designed and installed for the estimated runoff is a five pit system with a drying bed for the
waste materials removed from the pit (Figure 3). The total volume of all the five pits were
designed to be sufficient to hold the entire 25 year, 24-hr run off volume. Please note KERR
strives very hard to control and mitigate migration of any contaminated stormwater from the
facility to the waters of US.
All the five pits in the recycling system are sloped at the entrance in order for a front-end
loader to go into the pit for a periodic cleanup. However, a berm or a slope away from the pit
is placed in front of the second and the third pit in order to divert the wash wastewater entry
into these pits.
The pit sludge storage area, next to the truck washing operations, was constructed along with
the pit system in order to control stormwater flow that is in contact with the pit sludge. The
slopes of the truck washing operations and the pit sludge storage area are directed toward the
first pit of the five pit recycling system in order to control and mitigate migration of
stormwater contamination from the washing operations.
The location of the recycling system along with stormwater flow directions and wash areas are
displayed on Figure 3. The 25 year, 24-hr stormwater runoff calculations are provided in
Table 1 of this report.
A sump pump with a level switch is provided to pump water from the pit #4, as required, to
the plant or to the truck washing operations. This would help empty the pit #4 to
accommodate any possible rain event.
6.0 WATER BALANCE CALCULATIONS
The total flow from 25yr storm event is calculated to be 7,777 cft or 58,172 gallons.
Typically, the facility operates 40 to 50 batches per day and 250 gallons of water per batch (10
gal/yard and 25 yards per batch). Total water used in the plant per day is approximately
10,000 to 12,500 gals. Therefore, the pit water to be recycled in the plant equals to 5.8 days to
4.6 days respectively.
CP Engineering and Environmental Solutions 4 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cvpakala a,carolina.rr.com 108 Industrial Blvd.

7.0 A to C CONSTRUCTION PERMIT APPLICATION
Based on the capacity of retention basin calculations supplied to CPEES, it is our
understanding that we could rescind the NPDES permit for this facility. However, we will
operate the recycling pit therefore, Kerr Concrete request the State to provide an Authorization
to Operate (A to O) the existing system. A copy of the NCG 140000 NOI is attached with the
A to O Report for an approval.
CP Engineering and Environmental Solutions 5 A to C Permit Application
Tel: [phone] Kerr HRM Concrete - Morganton
Email: cmakalancarolina.rr.com 1081ndustrial Blvd.

PMA
Division of Water Quality / Surface Water Protection
w��rrrrr
NCDENRNational Pollutant Discharge Elimination System
lb r" G� t]eP.w - of
FMVRONMF.4T MD NR . rb.�o..RCPa
NCG140000
NOTICE OF INTENT
MR AGENCY USE ONLY
Date Received
Year Month Da
Certificate of Co
Check # Amount
Perntil Assigned to
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete
For new plant sites that will discharge or recycle process wastewater (even If commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to Construct (ATC) wastewater
treatment facilities. ATC requests must be submitted at least 90 days prior to construction'.
For existing plant sites discharging or recycling process wastewater (even M commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to continue to operate wastewater
treatment facilities In place. Construction, modification, or installation of any new treatment components
at an existing site requires an ATC.
Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures
treating process wastewater flows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the
same time as the Certificate of Coverage (COC) for the NCG14 permit. Design of treatment facilities
must comply with requirements of 15A NCAC 2H .0138 & .0139.
Construction of wastewater treatment facilities (this Includes recycle systems) at new or existing plant
sites requires submission of three (3) sets of plans and specifications signed and sealed by a
Professional Engineer (P.E.) or qualified staff2 along with this application. A copy of the design
calculations should be Included. Please see questions 14 & 15.
W,— I For questions, please contact the DWO Regional Office for your area. (See page 5)
(Please print or type)
1) Mailing address of owner/operator (address to which all permit correspondence will be mailed):
Name
Street Address
City
Telephone No.
MR. ROGER KERR, V.P. of SALES AND TREASURER
1126 1 st. AVE SW/PO BOX 1924
HICKORY
828-322-3157
2) Location of facility producing discharge:
Facility Name
Facility Contact
Street Address
City
County
Telephone No.
State NC ZIP Code 28602/28603
Fax: [phone]
KERR'S HRM CONCRETE - MORGANTON PLANT
MR. ROGER KERR, V.P. of SALES AND TREASURER
108 INDUSTRIAL BLVD.
MORGANTON
BURKE
State NC ZIP Code 28655
828439-9886 Fax: [phone]
'As per 15A NCAC 2H .0106 Page 1 of 5
2Unless treatment facilities are designed, constructed, and put into operation by employees internal to the company who are qualified to
perform such work for their respective companies in accordance with General Statutes, 89C-25 (7), plans and specifications must be signed
and sealed by a P.E.

NCG140000 N.Q.I.
3) Physical location information:
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). SEE ATTACHED DIRECTION
(A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application.)
4) Latitude 35 43' 41.76"
Longitude -81 21' 54.94" (deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
❑ New or Proposed Facility Date operation is to Begin
® Existing
6) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 2 7 3
7) Provide a brief description of the types of Industrial activities and products produced at this facility:
(Include a site diagram showing the process areas present at this facility.)
DRY CONCRETE OPERATIONS. PLANT PRODUCES, CONCRETE FOR COMMERCIAL USE
8) Discharge points I Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? NO OUTFALLS
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? UNNAMED TRIBUTARY TO CLARK CREEK AND EVENTUALLY TO CATAWBA RIVER (SEE FIGURE 1)
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer). NIA
Receiving water classification (if known): CLASS WS-RV (SEE ATTACHED SHEETS)
Note: Discharge of process wastewater to receiving waters classified as WS-II to WS-V or SA must
be approved by the N.C. Dept. of Environmental Health. If DEH does not approve, coverage
under NCG140000 cannot be granted. No new discharges of process wastewater are
permitted in receiving waters classified as WS-I or freshwater ORW.
9) Does this facility have any other NPDES permits?
0 No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
10) Does this facility have any Non -Discharge permits (ex: recycle permits)?
0 No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility:
11) Does this facility employ any best management practices for stormwater control?
❑ No
0 Yes
If yes, please briefly describe: SECONDARY CONTAINMENT FOR OILSICHEMICAL STORAGE, BERMS
AROUND THE STONE AND SAND STORAGE AREAS. PLANS TO RECYCLE WASHWATER

NCG140000 N.O.I.
12) Does this facility have a Stormwater Pollution Prevention Plan?
0 No
❑ Yes
If yes, when was it implemented?
13) Are vehicle maintenance activities occurring or planned at this facility?
0 No
❑ Yes
Wastewater Treatment Design Information
14) Are discharges occurring or planned from any of the following process wastewater generating activities?
Vehicle and equipment cleaning 0 Yes ❑ No
Wetting of raw material stockpiles 0 Yes ❑ No
Mixing drum cleaning
0 Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater.
Wa
For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH - 6-9 SU, Total
Suspended Solids (TSS) - 30 mg/l, and Settleable Solids (SS) - 5 ml/I.) [Use separate sheet(s)].
If all these discharges are recycled, please refer to Question 15.
For plants that recycle and/or discharge Drocess wastewater:
When applying for this permit, you are also applying for an authorization to construct (new
treatment facilities) or authorization to continue to operate (existing treatment facilities) as
part of the NOI. For new sltes� you must submit three (3) sets of design plans and
specifications with this application and provide supporting calculations that predict
compliance of final discharge with permit limits. For existing sites, applicants should submit
three (3) sets of plans and specs for facilities as -built and provide as many design details as
possible, or submit a detailed diagram of treatment systems In place that Includes Information
such as tank volumes, dimensions, retention time, piping, settling basin details, etc.
Please note: If new treatment systems are planned for an existing site, an ATC will be required
prior to construction of those facilities. Plans/specs/calculations prepared by a P.E. and the
request for an ATC may be submitted with this NOi, or separately at a later date. DWQ may
request the status of your plans for requesting an ATC upon issuance of the COC.
15) Does the facility use or plan to use a recycle system?
❑ No
0 Yes
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
26 year, 24-hr rainfall event
For a recycle system (regardless of when it overflows), please provide plans, calculations, and design
specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of
freeboard in design storm event, etc.). [Use separate sheet(s)].
For a sufficient application, the information must demonstrate compliance of final discharge with permit
effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS) — 5 ml/1), or
must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr
rainfall event plus one foot of freeboard under design operating conditions.

NCG140000 N.O.I.
16) Are wastewater treatment facilities (including recycle systems) planned in the 140-year flood plain?
m No ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design
requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.)
17) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
® No
Cl Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
® No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
m No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
18) Certification:
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 this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10,000).
I hereby request coverage under the referenced General Permit. I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit.
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
Title: V
of Person Signing: MR. ROGER KERR
IALESAND TREASURER
�:I-//
(L)ate Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDENR

NCG140000 N.0.1.
Final Checklist
This application will be returned as Incomplete unless all of the following Items have been included:
0 Check for $100 made payable to NCDENR.
0 This completed application and all supporting documentation (including design details and calculations for
treatment systems).
❑ If an Erosion & Sedimentation Control (E&SC) Plan Is required from Division of Land Resources (DLR)
or local designee: documentation verifying applicant has developed and submitted that Plan to the governing
agency (required per 15A NCAC 02H .0138). NOT REQUIRED
W4 { m For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and
specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a
Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7). SEE ATTACHED
❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including
recycle systems) as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a
detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions,
retention time, piping, settling basin details, etc. NIA
® A site map showing, at a minimum, (existing or proposed):
(a) outline of drainage areas, (b) stormwater/wastewater treatment structures, (c) location of
stormwater/wastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures,
(e) areas where materials are stored, (f) impervious areas, and (g) site property lines.
0 A county map or USGS quad sheet with location of facility clearly marked.
Mall the entire pat kage to:
Stormwaie► Permitting Unit
Divisidr( of W ater Q ality
' 1617 Mali 8&Ace C8_PW7
Raleigh', North Carolina 27689-1617
Note
The submission of this document does not guarantee the Issuance of an NPDES permit.
For questions, please contact the DWO Regional Office for your area.
DWO Regional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office ...
[phone]
Mooresville Office ...
[phone]
Raleigh Office ........
[phone]
Washington Office ...(252)
946-6481
Wilmington Office...
[phone]
Winston-Salem ......
[phone]
Central Office .........(919)
807-6300

Directions to 108 Industrial Blvd, Morganton, NC 28655
Google maps 201 mi —about 3 hours 16 mina
Save trees. Go green!
Download Google Maps on your '
phone at google.com/gmm 4
0
sq: Raleigh, NC
1. Head east on E South St toward S Wilmington St go 0.1 mi
total 0.1 mi
2. Turn right at the 1st cross street onto S Blount St go 0.6 mi
About 2 mins total 0.7 mi
3. Continue onto Hammond Rd go 0.4 mi
total 1.1 mi
4. Merge onto 1.40 WIUS-64 W via the ramp to 1-440
go 199 mi
' Continue to follow 1-40 W
total 200 mi
About 3 hours 9 mins
5. Take exit 100 for Jamestown Rd toward Glen Alpine
go 0.2 mi
total 200 mi
6. Slight left at Jamestown Rd
go 348 ft
total 200 mi
7. Take the 1 st right onto Reep Dr
go 0.3 mi
total 200 mi
8. Take the 1 st right onto Dixie Blvd
go 0.7 mi
About 2 mins
r
total 201 mi
9. Continue onto Industrial Blvd
go 0.2 mi
Destination will be on the right
total 201 mi
108 Industrial Blvd, Morganton, NC 28655
9
These directions are for planning purposes only. You may find that construction projects, traffic, weather, or other events may cause conditions to differ from the
map results, and you
should plan your route accordingly. You must obey all signs or notices regarding your route.
Map data C2011 Google
Directions weren't right? Please find your route on maps.google.com and dick "Report a roblem" at the bottom left.

TABLES
Table 1: Runoff Volume Calculations for a 25 yr, 24-hr Storm Event
(Supplied by Kerr Concrete)

2 NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Land Resources
Land Quality Section
Michael F. Easley, GovZD�ict
n William G. Ross, Jr., Secretary
James D. Simons, PG, and State Geologist Janet S. Boyer, PE, Regional Engineer
September 4, 2008
LETTER OF APPROVAL WITH MODIFICATIONS
Mr. Roger Kerr
Post Office Box 1924
Hickory, North Carolina 28603
RE: Project Name: Kerr Concrete
Acres Approved: 5.3
Additional Fee Received: $65.00
Project ID: BURKE-2008-023
County: Burke
Street and City: Industrial Drive, Morganton
River Basin: Catawba
Stream Classification: WS-IV
Latitude: 35.7267 Longitude: .81.7398
Submitted By: Gateway Grading & Development, Kipp Turner, PE
Date Received by LQS: August 27, 2008
Plan Type: Revision (Sheet EC 1)
Dear Mr. Kerr :
This office has reviewed the subject erosion and sedimentation control plan. We find
the plan to be acceptable with modifications and hereby issue this letter of Approval With
Modifications. The Modifications Required for Approval are listed on the attached page. This
plan approval shall expire three (3) years following the date of approval, if no land -disturbing
activity has been undertaken, as is required by Title 15A NCAC 4B .0129.
Please be advised that Title 15A NCAC 4B .0118(a) requires that a copy of the
approved erosion control plan be on file at the job site. Also, you should consider this letter
to give the Notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure
compliance with the approved plan.
2090 US Highway 70, Swannanoa, North Carolina, 28778-8211
Telephone [phone] Fax [phone]
www.enr.state.nc.us
An Equal Opportunity! Affirmative Action Employer
Ntu'rallil
e hCarolina

STORMWATER PERMITTING REPORT
for
KERR'S CONCRETE PLANT SITE
in
MORGANTON, BURKE COUNTY, NC
PREPARED FOR:
KERR'S HICKORY READY MIX CONCRETE, INC.
PREPARED BY:
N. K. TURNER, P.E.
CONSULTING ENGINEER
LENOIR, NC
ADDITIONAL CONSULTING BY:
ROBERT JONES, EI, GC, MBA
FROEHLING & ROBERTSON, INC.
CHARLOTTE, NC
SUBMITTED TO:
STORMWATER PERMITTING UNIT
DIVISION OF WATER QUALITY
1617 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1617
AUGUST 4, 2008 CARO
9
SEAL�
025478
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Included as part of this document are the design parameters for the designated site and
process treatment component.
Site Description:
Kerr's Concrete is proposing a site for a new concrete plant in the City of Morganton,
NC. The site is a 10.76 acre tract in an area zoned Heavy Industrial by the City. The
property fronts State Road SR 1178 (Industrial Blvd), which will serve as the entrance to
the property, and State Road 1177 (Dixie Blvd).
The build -out project will consist of a ready mix plant, upper pad for materials
stockpiling and handling, lower pad for loading concrete trucks and administrative office,
as well as a wet detention pond for control of post -development storm runoff. The upper
pad will have a concrete surface. Approximately half of the lower pad will have a
concrete surface with the remainder consisting of a gravel surface.
Drainage Areas:
Drainage area DA-1 consists of 26,745 square feet and is used primarily stockpiling raw
materials on a portion of the upper pad. The area will be contained by natural
topography, earthen berms, and diversion drainage channels, and collected down gradient
in the Retention Area (15,140 co for solids removal. Off -site stormwater will be diverted
around the stockpile area and into the wet detention basin, which is designed to capture
the 25yr, 24hr storm event for the site.
Drainage area (DA-2) consists of 26,741 square feet with a Retention Area (17,898 co
and is designated as the primary process area where concrete is batched, admixtures are
stored, drum washout, truck washdown and bounded by the natural topography, earthen
berms and treatment structures (sediment removal and pH adjustment). Water from the
clear well (polishing)will be used for drum washout, truck washdown, and with the
ability to reuse the water in hatching from the sediment basin as well as the pH clear
well. Discharge from the pH clear well will be via manual discharge and done so only
after a pH of 6 to 9 is verified by on -site personnel. The pH will be reduced via the
Fortrans system (possibly multiple systems in series for increased capacity and shorter
treatment times) for discharge. Stormwater from the drive areas will be diverted away
from the process area and conveyed to the wet detention basin mentioned above.
The Drum Washout Basin is contained with DA-2 and consists of 5 bays with pH
adjuster. Total volume of process water captured is 58,176 gallons. Details of the basin
are described later in this report.
Drainage area (DA-3) consists of 16,102 square feet with Retention Area (8,910 co and
is the portion of the gravel pad designated for the parking area for trucks. Stormwater
from this area is also collected and bounded by topography and earthen berms. Note that
stormwater from the office area and gravel entry area is not collected and is allowed to
discharge into the created swale diversion and conveyed to the wet detention basin.

Drainage area (DA-4) consists of 178,596 square feet, which encompasses the previously
described drainage areas DA-1, DA-2, and DA-3, as well as the remaining stormwater
flowing through the site towards the wet detention. As designated on the plans, off -site
stormwater will be diverted away from and around the wet detention pond after the site is
vegetated / stabilized; thus, minimizing the amount of stormwater that could potentially
mix with process water. In addition to the permanent pool, the additional storage
provided by the wet detention in the temporary pool for the 25yr, 24hr rainfall event is
64,665 cubic feet. Calculations were performed using the NCDWQ Stormwater Manual
Simple Method. Since volumes from the other drainage areas are previously captured,
the wet detention basin, as designed for all the drainage areas, provides additional factor
of safety in controlling runoff.
Site Design Parameters:
Each Retention Basin and Process Washout Pit/Treatment basin is designed to
accommodate all process related discharge water and stormwater runoff for a 25-year 24-
hour storm event and maintain minimum freeboard capacity as required by statute and
engineering practice (1 —ft minimum). The capacity for each of the detention and
treatment systems are designed to contain all runoff and process water and do not take
into consideration any losses associated with infiltration and surface ponding which will
happen(most conservative approach due to existing conditions). These design parameters
will ensure the capacity of the structures will perform as designed. The supporting
calculations (attachment 1) depict the total possible water to be contained (process and
runoff) recognizing no reductions. Calculations (using the Rational Method and NCDWQ
Simple Method) are also included which depict typical modeling conditions and design
factors (time of concentration, runoff coefficients, assumptions, etc.) normally utilized for
retention/detention structure design.
Earthen Berms- As designated per drawing with a minimum width of 6'.
Diversion Drainage Channel- The diversion drainage channel is to collect and divert
runoff which has not been treated and assist in regulating the pH and sediment in the final
clear well or retention basin as depicted on the site drawing.
pH Adjustment- Fortrans pH Control System with a treatment capacity of 75,000
gallons per day and by utilizing multiple systems sequentially the capacity may be
increased accordingly. Discharge pH will be between 6 and 9 per NCG 140000. pH
adjustment will occur in Bay 5 which has a volume capacity of 3,595 cf (26,892 gal)
pH Treatment/Sediment Basins (to be constructed)- This concrete structure as per
drawings will consist of 5 bays. The initial 4 bays will allow for settling. The 5`h bay
will be behind and perpendicular to the other 4 bays and will be the bay for pH
adjustment. Once the water meets the appropriate pH level for discharge, it will be
discharge to the holding pond. The 4 settling bays are to accommodate 31,284 gallons of
process water and runoff for settling and pH adjustment. Each bay is 12'L x 60'W with a
depth of 3' to 7'. Capacities are as noted on the attached calculations sheet (volume per

bay) and total (Total Vol. Gallonslcuft). These dimensions allow a minimum of one foot
of additional freeboard at designed capacity.
A sump pump will be used to maintain a water level of no higher than Elev. 1043' in the
4 settling bays. This ensures adequate stormwater storage above this elevation.
The maximum anticipated process water based on empirical information provided by the
owner is 4,000 gallons per day. As previously indicated, the volume capacity for the
process water totals 58,176 gallons, including the settling bays and bay utilized for pH
adjustment.
Retention/Detention Basin- Dimensions providing the temporary storage in the basin
collecting DA4, which also collects DA-1, DA-2, and DA-3 , are approximately 247'x
72' x 4' (capacity of 64,655 cu.ft.). See attached basin sizing calculations and table for
verifications. This volume is the storage above and beyond the permanent pool volume
for the designed storm event and freeboard.
Cast Catch Basin with Lift Pump (if needed) - Each basin will be cast minimum 5'-8"
square with a minimum top opening of 2' and a grey iron class 30 round storm sewer
cover with a 1.75" thickness and perforated with tapered 1" holes. Each lift pump (1) is a
220v three-quarter horsepower electric pump(10400 gph) on a dedicated GFI circuit per
NC Building Code.
PVC Transfer and Recycle Pipe- 2"-6" PVC pipe for transfer and locations to be
determined based on site conditions to avoid utilities and concrete excavation where
possible.

DRAINAGE AREA INFORMATION
Description Stockpile area on upper pad
Drainage Area 26,745 sf 0.61 acre
Runoff Volume Captured 15,140 cf 113,255 gal
Description Contact area on lower pad
Drainage Area 26,741 sf 0.61 acre
Runoff Volume Captured 17,864 cf 133,632 gal
Process Water Captured 7,777 cf 58,176 gal
Description Portion of gravel pad
Drainage Area 16,102 sf 0.37 acre
Runoff Volume Captured 8,910 cf 66,651 gal
Description Entire drainage to basin
Drainage Area 178,596 sf 4.10 acre
Impervious Area 117,612 sf 2.70 acre
Runoff Volume Captured 64,665 cf 483,728 gal
Design Source: NCDWQ Stormwater Manual

tj ;r

CONCRETE SEDIMENT BASINS FOR
PROCESS WATER
Bay No.
Length
Width
Water Water
Depth Depth
(Deep (Shallow
End) End)
Average
Depth
Cubic Feet
Gallons
Bay 1
1 60 '
121
3.00 ' 0.00 '
1.50 '
Ba 2
60 '
121
4.00 ' 0.00 ,
2.00 '
Ba 3
60 '
12 '
5.00' 0.00 ,
2.50 '
Ba 4
60 '
121
5.00' 0.00 '
2.50 '
Process Water Settlinq
Bavs. Total =
4,182 cf
31,284 gal
Bay 5
60'
12'
5.00'
5.00'
5.00
3,595cf
26,892 gal
Process Water Treatment Ba Total =
3,595 cf
31,284 gal
Total Process Water Capacity =
7,777 cf
58,176 gal
NOTE: A minimum of 1' of freeboard is allowed for at design capacity.
NOTE: Basin sizes shown above are based on the actual installed basins at the Hickory Plant. The depths
shown are ponding depths. Basins may be constructed at deeper depths.

v
� ~
I

WET DETENTION CALCULATIONS
DESIGN' DATA:,
Total Drainage Area = 4.1 acres Impervious Area = 2.7 acres
% Impervious Cover = 66% Permanent Pool Depth = 3 feet
face Area to Drainage Area = 2.64% (Reference: Table 10-1)
�'d Total Surface Area of Permanent Pool = 4.1 ac x 43,560 sf/ac x 2.64% = 4715 sf
Req'd Forebay Surface Area (20%) = 943 sf
Req'd Main Pool Surface Area (80%) = 3772 sf
TEMPORARY POOL RUNOFF VOLUME (Simple Method - Chapter 3):
Rv = .05 + .9 * IA -- Rv = Runoff coefficient IA= Impervious Fraction
V = 3630 * Ro * Rv * Area V = Runoff volume controlled(cf) Ro = Design storm rainfall depth(in)
Ro = 6.56 inch
Rv = 0.64
V = 62747 cubic feet
DIMENSION INFORMATION
Interior Basin Slopes 2:1 below permanent pool
Exterior Basin Slopes 3:1 for vegetation
At permanent pool elevation, provide 10' wide vegetated shelf; half should be 6" below pool level and half 6" above
Design
Elevations
Elevation of Basin Bottom 1034.0'
Depth for Sediment Storage in Bottom 1.0'
Depth of Permanent Pool (from above) 3.0'
Elevation of Permanent Pool 1038.0'
Depth for Temporary Storage to Control 6.6" Rain 4.0'
"-vation of Temporary Pool 1042.0' Primary Spillway Riser
.tporary Pool Elev. to Emergency Spillway 1.0'
,.,evation of 6' Emergency Spillway Crest 1043.0'
Flow Depth above Spillway 0.5' Max depth per NCDENR
Elevation to Pass Peak Discharge 1043.5'
Freeboard from Top of Weir Flow to Top of Dam 1.0'
Elevation of Top of Dam 1044.5'
ESTIMATED PEAK DISCHARGES
Q = CIA IZ = 5.33 inches per hour (tr = 5 min) (Reference NWS data for Morganton, NC)
Coefficients (C) : I10 = 7.09 I25 = 8.08 I10 = 9.58
Cam, = 0.5 Area = 1.31 C x A = 0.655
Ccon«e,e = 0.8 Area = 1.77 C x A = 1.416
Cgm l = 0.6 Area = 0.94 C x A = 0.564
4.02 2.635
CAVERAGE = 0.66
Qz = 14.04 CFS Qto = 19.05 CFS Q25 = 21.71 CFS
Q100 = 25.75 CFS
DRAWDOWN ORIFACE NCDWQ - 2 to 5 gays Oriface Equation . Q = Cp*A*(2gh)
Quantity to release = 64665 cubic feet Time = 3.0 days Rate = 0.249 cfs
Avg. head = (1042 - 1038) / 2 = 2.00 ft Cd = 0.6 g = 32.2 ft/s2
Area = 0.037 sf Dia. = 0.22 ft
Oriface Pipe Size = 2.592 in Try 2.50 in T = 3.2 days

t
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,s
r

Designed By:
NKT Date: Q7n:
Checked By:
Date.
Company:
Gateway GradM S Devaiopment
Prof*& Name:
Kerr Concrete
Pro' No.:
Pipe Flow
Fun
Inlet Invert (it)
1034.00
Outlet Invert (4)
1033.5o
Matedw
Rough Cement (n-0.015)
Diameter on)
24
K.
1.0
M finings n
0.01S Mannlrla's n
Length (1t)
too
Ky
0.017 Or use TabL- 8.07a
Ara& (t?)
3.1
nlet
SPILLWAY DESIGN CALCULATIONS
Riser
0.6 Crest Elevation (IQ 1042
Pipe Diameter(1n) 3A
Box
L (ft)
w (it)
C. 3.1
Elevation tt o Dead I I N a I l H 0
Riser
Crest Elevation (h) 1D42
Pipe Diamelor (In) 30
ox
L (11)
w (d)
C. 0.6
Area (I1') 4.9067
H 0
Flow
Soillwav Flow
Bottom Elevation (It)
Bottom Width
r Equation 0,- C L H' 5
C.
0 max I I Elevation Head 0 I I o elm
COMMENTS
1Q42.00
7.5
35.091
11.48M2631
7.00
40.00
0.0D
0.0o
0.00
0
0.00
1042.00
0.00
0.00
0,00
PrimarySpNway
IG42,00
8.5
38.422
1223019
8.00
42.78
1.00
24.35
1.00
23.621
23.62
1043.00
0.00
0.00
23.62
Emergency SoRmy
1043,50
9
39.536
12.69476169
8.50
44.07
1.50
44.73
1.50
28.929
26.93
1043.50
0.50
5.94
34,07
6' Flow above SpOmy
1044.50
10
41.675
13.26550358
9.50
46.59
2.60
96.24
2.50
37.348
37.35
1044.50
1.50
30.96
68.21
Top of Dom

DESIGN DATA FOR PAD STORAGE
UPPER PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 26,745 sf
0.61 ac
I ity 12.5 = 8.08
inches per hour (t, = 5 min) (Reference NWS data for Morganton. NC)
R,-.,.rf Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 yr, 24 hr rainfall event:
26,745 sf x 6.56 in divide by 12.00 in =
14,621 ct
LOWER PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in {Reference NWS data for Morganton, NC)
Q=CIA
Contact Area: 26,741 sf
0.61 ac
Intensity 1,5 = 8.08
inches per hour (t, = 5 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 yr, 24 hr rainfall event:
26,741 sf x 6.56 in divide by 12.00 in =
14,618 c
GRAVEL PAD DATA: 25 yr, 24 hr Rainfall Event = 6,56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 16,012 sf
0.37 ac
Intensity I25 = 8.08
inches per hour (tt = 5 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 2.67 CFS
Storage for 25 yr, 24 hr rainfall event:
16,012 sf x 6.56 in divide by 12.00 in =
8,751 c
SPILLWAY DATA:
Weir Equation Q= C L H", where C= 2.8, L = width of spillway, H = depth of flow
Design Q5, Use 5 CFS for all storage outlets
Try 6' Weir:
2.8 L =
6 ft H = 0.50 ft Q 5.94 CFS
6' Weir is OK
ELEVATIQN DATA:
Upper Pad Lower Pad Gravel Pad
Top of Berm Elevation
1066.5 ' 1047.5 ' 1047.5 '
Flow through Spillway Elevation
1065.5 ' 1046.5 ' 1046.5 '
25yr, 24hr Storage Elevation
1065.0' 1046.0' 1046.0'
Note: I' of Freeboard from top of spillway flow to top of berm.

' POINT PRECIPITATION,'`°
FREQUENCY ESTIMATES r
FROM NOAA ATLAS 14
MORGANTON, NORTH CAROLINA (31-5838) 35.7306 N 81.6717 W 1148 feet
From "Precipitation -Frequency Atlas of the United States' NOAA Atlas 14, Volume 2, Version 3
G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley
NOAA. National Weather Service, Silver Spring, Maryland, 2004
Extracted: Mon Jut 7 2008
EP*
[-in-
:hose precipitation frequency estimates are based on an AEP is the Annual Exceedance Probability.
eas , to the documentation for more information. NOTE: Formatting forces estimates near zero to appear as zero.
#EP** 5
,,, min
Upper bound of the 90% confidence interval
Precipitation Freauency Estimates (inches)
10
15
30
60
120
3
6
l2
24
48
4
7
10
20
30
45
min[1111111day
day11114
0.45 D.72 090 1.24 1.56 1.82 J[LL6jk±2jj3.03 113.67 IL8JI4.90 5.66 6.4I J83 i 0.29 12.85 ! 5.21
0.56 0.90 I.14 1.62 2.08 2.45 2.63 3.2 ! 4.00 4.95 5.85 6.47 7.33 12.59 15.45118.15
10 0.64 1.02 l .29 1.87 2.44 2.90 3. l2 3.79 4.69 5.84 6.86 7.55 8.46 9.37 1 1-98 14.02 l 7.D l 19.90
25 0.73 1.17 1.48 2.24 2.92 3.52 3.81 4.61 5.63 7.05 8,22 8.96 9.91 10.84 13.77 15.74 18.8T 21.97
50 0.80 1.28 l.62 2.44 3.30 4.02 4.39 5.29 6.38 7.99 9.26 10.06 l l .01 l 1.94 1 S.l 1 16.99 20.I9 23.43
100 0.87 L39 1.75 2.69 3.70 4.56 50 I 6,04 7.18 $.98 10.34 1 1.18 12.13 13.04 16.46 18.22 21.46 24,84
200 079511.50 1.90 2.95 4.14 5.15 5.72 6.88 8.05 10.00 ! 1.47 12.35 13.2$ 14.16 17.83 19.42 22.71 26.21
500 1.05 I.65 2.08 3.31 4.75 6.02 6.76 8.14 9.32 11.44 13.02 13.96 14.85 15.68 19.67 20.98 24.3I 27.96
1 000 1,13 1.78 2.23 3.61 5.27 6.76 7.66 9,22 10.38 i2.60 14,27 15.26 16.09 16.88 21.12 22.16 25.51 29.26
The upper bound of the confidence interval at 90% confidence level is the value which 5%of the simulated quantite values for a given frequency are greater than.
'These precipitation frequency estimates are based on an ;annual maxima serifs, AEP is the Annual Exceedance probability,
tease refer to the documentation for more information. NOTE: Formatting prevents estimates near zero to appear as zero.
* Lower bound of the 90% confidence interval
Precipitations Frequency Estimates (inches)
AEP** 5 10 15 30 60 120rh
3 6 12 24 48 4 7 10 20 30 45 Fd
(1_in- min min min min min minr hr hr hr hr day day day day [day day
httn:lldi over.nws.noaa.eovlcgi-binlhdsclbuildout.perl?tv pe=pf&units=us&series=am&statenamc=NORTI-I-1-C... 7171200E

I
• ' . i fir•_, ,.1 r, .,'{ '-• ... •
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r

bay) and total (Total Vol. Gallons/cuft), These dimensions allow a minimum of one foot
of additional freeboard at designed capacity.
A sump pump will be used to maintain a water level of no higher than Elev. 1043' in the
4 settling bays. This ensures adequate stormwater storage above this elevation.
The maximum anticipated process water based on empirical information provided by the
owner is 4,000 gallons per day. As previously indicated, the volume capacity for the
process water totals 58,176 gallons, including the settling bays and bay utilized for put
adjustment.
Retention/Detention Basin- Dimensions providing the temporary storage in the basin
collecting DA-4, which also collects DA-1, DA-2, and DA-3 , are approximately 247'x
72' x 4' (capacity of 64,655 cu.ft.). See attached basin sizing calculations and table for
verifications. This volume is the storage above and beyond the permanent pool volume
for the designed storm event and freeboard.
Cast Catch Basin with Lift Pump (if needed) - Each basin will be cast minimum 5'-8"
square with a minimum top opening of 2' and a grey iron class 30 round storm sewer
cover with a 1.75" thickness and perforated with tapered 1" holes. Each lift pump (1) is a
220v three-quarter horsepower electric pump(10400 gph) on a dedicated GFl circuit per
NC Building Code.
PVC Transfer and Recycle Pipe- 2"-6" PVC pipe for transfer and locations to be
determined based on site conditions to avoid utilities and concrete excavation where
possible.
SUMMARY DESIGN STATEMENT — The basins are designed to contain the 25 yr
storm event with the mandatory minimum 1' of freeboard for capacity and the
design parameters would yield a net discharge compliant with the permit effluent
limits as follows: pH between 6 to 9, Total suspended solids (TSS) of 30mg/1 or less,
and Settleable Solids (SS) of SmIA or less.

FIGURES
Figure l: Site Location Map
Figure 2: Aerial View of Surrounding Properties around the
Morganton Plant
Figure 3: Site Layout Map with Buildings, Dry Mix Concrete
Plant, and Proposed Process Washwater /
Stormwater Recycle System

Map Name: Unknown Map Center 0350 43' 41.51" N 081' 44' 55.85" W
Print Date: 02/10/11 Horizontal Datum: NAD27
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SCALE 1:24000
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YARDS
SITE LOCATION MAP
KERR HRM COCNRETE - MORGANTON
PLANT
FIGURE 1 JOB NO. 1134-001

I
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c r KERR ` S HICKORY READY MIX KERR ' S HICKORY READY MIX y_ KERB S HICKORY READY MIX
o �, `-- — GRADING a — _ GRADING —
n CONCRETE INC. x N� d °"'�" "`"' 'N` d X CONCRETE INC x=m�=r w+ "`L' " ' '"` 9 CONCRETE INC . ��p y`- \ =, GRADING
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EROSION CONTROL DETAILS EROSION CONTROL DETAILS
Pli()�IOM �-ONLROL DETAlL9
t W GATEWAY GATEWAY GATEWAY
KERR KERR'S HICKORY READY MIX KERB 'S HICKORY READY MIX
GRADING
'S HICKORY READY MIX 5m
V. r)
GRADING GRADING
I D-11T III CONCRETE, INC. CONCRETE, INC. & DE—PMENT EIC
CONCRETE, INC.

ATTACHMENTS
Attachment A: Independent Consultants Calculations
Attachment B: NC DENR — Division of Water Quality Stream
Classification Table for Burke County

Attachment A
Independent Consultants Calculations

DRAINAGE AREA INFORMATION
Drainage Area 1 (DA-1)
Description Stockpile area on upper pad
Drainage Area 26,745 sf 0.61 acre
Runoff Volume Captured 15,140 cf 113,255 gal
Description Contact area on lower pad
Drainage Area 26,741 sf 0.61 acre
Runoff Volume Captured 17,864 cf 133,632 gal
Process Water Captured 7,777 cf 58,176 gal
Description Portion of gravel pad
Drainage Area 16,102 sf 0.37 acre
Runoff Volume Captured 8.910 cf 66,651 gal
Description Entire drainage to basin
Drainage Area 178,596 sf 4.10 acre
Impervious Area 117,612 sf 2.70 acre
Runoff Vclume Captured 64,665 cf 483,728 gal
Design Source: NCDWQ Stormwater Manual

CONCRETE SEDIMENT
BASINS FOR
PROCESS WATER
Bay No.
Length
Width
Water
Depth
(Deep
End)
Water
Depth
(Shallow
End)
Average
Depth
Cubic Feet
Gallons
Bay 1
60 '
12 '
3.00 '
0.00 '
1.50 '
Bay 2
60 '
12 '
4.00 '
0.00 '
2.00 '
Bay 3
60'
12'
5.00'
0.00'
2.50'
Bay4
60 '
12 '
5.00 '
0.00 '
2.50 '
Process Water Settlinq Ba s Total =
4,182 cf
31,284 gal
Bay 5
60 '
12 '
5.00 '
5.00 '
5.00 '
3,595 cf
26,892 gal
Process Water Treatment Bay Total =
3,595 cf
31,284 Qal
Total Process Water Capacity =
7,777 cf
58,176 gal
NOTE: A minimum of 1' of freeboard is allowed for at design capacity.
NOTE: Basin sizes shown above are based on the actual installed basins at the Hickory Plant. The depths
shown are ponding depths. Basins may be constructed at deeper depths.

WET DETENTION CALCULATIONS
DESIGN DATA:
Total Drainage Area = 4.1 acres Impervious Area = 2.7 acres
% Impervious Cover = 66% Permanent Pool Depth = 3 feet
Ice Area to Drainage Area = 2.64% (Reference: Table 10-1)
Req'd Total Surface Area of Permanent Pool = 4.1ac x 43,560 sf/ac x 2.64% = 4715 sf
Req'd Forebay Surface Area (20%) = 943 sf
Req'd Main Pool Surface Area (80%) = 3772 sf
TEMPORARY POOL RUNOFF V
Rv=.05+.9'IA
V = 3630 ' Ro ' Rv . Area
RD = 6.56 inch
Rv = 0.64
V = 62747 cubic feet
UME (Simple Method - Chapter 3):
Rv = Runoff coefficient
V = Runoff volume controlled(cf)
IA = Impervious Fraction
Ro = Design storm rainfall depth(in)
DIMENSION INFORMATION
Interior Basin Slopes 2:1 below permanent pool
Exterior Basin Slopes 3:1 for vegetation
At permanent pool elevation, provide 10' wide vegetated shelf; half should be 6" below pool level and half 6" above
Design
Elevations
Elevation of Basin Bottom
1034.0'
Depth for Sediment Storage in Bottom
1.0'
Depth of Permanent Pool (from above)
3.0'
Elevation of Permanent Pool
1038.0'
Depth for Temporary Storage to Control 6.6" Rain
4.0'
nation of Temporary Pool
1042.0' Primary Spillway Riser
3porary Pool Elev. to Emergency Spillway
1 0'
Elevation of 6' Emergency Spillway Crest
1043.0'
Flow Depth above Spillway
0.5'
Max depth per NCDENR
Elevation to Pass Peak Discharge
1043.5'
Freeboard from Top of Weir Flow to Top of Dam
1.0'
Elevation of Top of Dam
1044.5'
Q = CIA
I2 = 5.33
inches per hour (tt = 5 min) (Reference NWS data for Morganton, NC)
Coefficients (C) :
1 to = 7.09
125 = 9.08
IIN =
9.59
Cxras:s = 0.5
Area =
1.31
C x A =
0.655
Ccoexre[e = 0.8
Area =
1.77
C x A =
1.416
Cxravel = 0.6
Area =
0.94
C x A =
0,564
4.02
2.635
CAVERAGE = 0.66
Q2 = 14.04 CPS
Q10 =
19.05 CPS
Q25 =
21.71 CPS
Quo = 25.75 CPS
DRAWDOWN ORIFACE_(NCDWQ
- 2 to 5 days)
Quantity to release =
64665 cubic feet
Avg. head = (1042 - 1038)
/ 2 = 2.00 ft
Area = 0.037 sf
Dia. = 0.22 f€
Driface Pipe Size =
2.592 in
Time = 3.0 days
Cd = 0.6
Try 2.50 in
Oriface Equation .
Rate =
9=
T=
Q = Cr,'A•(2gh)
0.249 cfs
32.2 ft/s2
3.2 d

DeSlgned By:
NKT Date: 07,42r'08
SPILLWAY DESIGN CALCULATIONS
Checked By:
Date:
Company:
Gateway Graciog R Development
Project Name!
Kar, Concrete
Pro' t No.:
Pipe Flow
Inlet Control
Weir Flow
Orifice Flow
Primary
Emergency
Total Spillway
Fun
Onrice
Rraer
Fuser
Spillway Flow
Spillway Flow
Capacity
Intel men (4)
1034.00
C,
0,6
Crest Elevation (ft)
1042
Crest Elevation (11)
IN2
Bottom Elevation (h)
1043
Outlet lrvert (it)
1033.50
Material
Rough Cement (n=0.015)
Pipe Dlameler M)
30
Pipe QMeler (in)
3C
Bottum W ath
6
Diameter (Ins
24
K.
1.0
Bolr
Box
ManMngs n
0.015 Mannino's n
L (h)
L (8)
Weir Equawn Q= C L H"
Length lhl
100
W (h)
W (h)
Ko
0,017 QL M T 7a
C.
28
Area (te)
3.1
C,
3.1
G,
0.6
Area V?)
4 9087
Elevstj n
H 0 Outlet
H
0
H
0
H
0
0 max
Elevailon Head
0
0 cfs
h
h(cis) Velocity tun
h
cla
h(CIS)
tt
cta
(cis)
tt
cta
QQMMENTS
1042.00
7,5 36,091 11.4662631
7.00
40.00
0.00
0.00
0-00
0
0.00
1042.00 0 00
0-00
0.00
Primary Sp&-y
1043.D0
8.5 39422 12,23019
8.00
42.78
1,00
24.35
1.DD
23.621
23.62
1D43-00 0.D0
0.00
23.62
Emergency Spillway
1043.50
9 39.536 12.58476169
8.60
4407
1,50
s4.73
1.50
28,929
28.93
1D43.50 0-50
5.94
34.87
6'Flow a6ovaSptaway
10".50
10 41.675 13.26550358
9.50
46.59
2.50
96.24
2.50
37 348
37.35
1044.5C 1.50
30.96
5821
Top DI Dam

DESIGN DATA FOR PAD STORAGE
UPPER PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 26,745 sf
0.61 ac
I, ity I2.5 = 8.08
inches per hour (tt = 5 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 Zr, 24 hr rainfall event:
26,745 sf x 6.56 in divide by 12.00 in =
14,621 cl
LOWER PAD DATA: 25 yr. 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q=CIA
Contact Area: 26,741 sf
0.61 ac
Intensity 125 = 8.08
inches per hour (t, = 5 min) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 4.46 CFS
Storage for 25 yr, 24 hr rainfall event:
26,741 sf x 6.56 in divide by 12.00 in =
14,613 c
GRAVEL PAD DATA: 25 yr, 24 hr Rainfall Event = 6.56 in (Reference NWS data for Morganton, NC)
Q = CIA
Contact Area: 16,012 sf
0.37 ac
Intensity 125 = 8.08
inches per hour (t, = 5 nun) (Reference NWS data for Morganton, NC)
Runoff Coefficient (C) = 0.9
Q25 = 2.67 CFS
Storage for 25 yr, 24 hr rainfall event:
16,012 sf x 6.56 in divide by 12.00 in =
8,753 c
SPILLWAY DATA:
Weir Equation Q= C L H1-5, where C = 2.8, L = width of spillway, H = depth of flow
Design Q25: Use 5 CFS for all storage outlets
Try 6' Weir:
= 2.8 L =
6 ft H = 0.50 ft Q = 5.94 CFS
6' Weir is OK
ELEVATION DATA:
Upper Pad Lower Pad Gravel Pad
Top of Berm Elevation
1066.5 ' 1047.5 ' 1047.5 '
Flow through Spillway Elevation
1065.5 ' 1046.5 ' 1046.5 '
25yr, 24hr Storage Elevation
1065.0' 1046.0 ' 1046.0 '
Note: l' of Freeboard from top of spillway flow to top of berm.

POINT PRECIPITATION��"`
FREQUENCY ESTIMATES
`
FROM NOAA ATLAS 14 Vd?
,.
MORGANTON, NORTH CAROLINA (31-5838) 35.7306 N 81.6717 W 1148 feet
from "Precipitation -Frequency Atlas of the United States' NOAA Atlas t4. Volume 2, Version 3
G. M. Bonnin, D. Martin. B. Lin, T. P"bok, M. Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland. 2004
Extracted: Mon Jul 7 2009
4ese r Itation frequency estimates are based on an enr al rrrauirna_ , A1EF is the Actual Exceedance Probabldy.
3ase the tWumentation for more information. NOTE: Format&* forces estimates new zero to appear as zero.
* Upper bound of the 90% confidence interval
Precipitation Freauencv Estimates (inches) 11
,EP**
(1-1n-
Y)
5
min
l0
min
15
min
30
min
b0
min
120
min
3
hr
6
hr
12
hr
24
hr
48
hr
4
day
7
day
l0
day
20
day
30
day
45
day
60
day
0.45 0.72 0.90 1.24 l.56 l.82 1.96 2.42 3.03 3.67 4.38 4.90
5.66
6.41
8.43
10.29
12.85
15.21
F0_5 6-1 0.90 1,14 1.62
2.08
Efl 2.63 E2E
4.00 1 4.95 5.85 6.47
7.33
$.19
10.57
12.59
15.45
18.15
10
25
O.b4
0.73
l.02
1.17
1.29 1.$7
2.44
2.90
3.i2
3.79
4.69
5.84
6.86
?.55
8.46
9.37
I1.98
I4.02
17.01
19.90
1.48 2.20 2.92
3.52
3.81
4.61
5.63
7.05
8.22
8.96
9.9i
10.84
13.77
15.74
18.87
21.97
50 0.80 1.28
1.62
2.44
3.30
4.02
4.39 5.29 6.38 7.99
9.2b 10.06
11.01
! 1.94
15.11
16.99
20.19
23.43
100
0.$7
1.39
l.75
2.69
3.70
4.56
5.01
6.04
7.l$
8.98
10.34 11.18
12.13
13.04
16.46
18.22
21.46
24.84
200
fl.95
1.50
1.90 2.95 4.14 5.l5
5.72
6.88
8.05
10,00
11.47 12.35
l3.28
14.16
17.83
19.42
22.71
26.21
500 1.05 1.65 2.08
3.31
4.75 6.02
6.76
$.14
9.32
11.44
13.02
13.96
14.85
15.68
19.67
20.98
24.31
27.96
1000 1,13 1.78
2.23
3.6 !
5.27
6.76
7.66
9.22
l 0.3 $
12.60
14.27
15.26
16.09
16.88
21. l2
22. i 6
2 5.51
29.26
The upper bound of the confidante inWvS at 90% Confidence level is the value which 5% o! the simulated quantfle values for a given frequency are greater than.
'These precipitation frequeraty estirrWm are based on an annul ximp�r�s, AEP is the Annual Exceedance Probability,
lease refer to the documentation for more Information. NOTE:1 ormatting prevents estimates near zero to appear as zero.
* Lower bound of the 90% confidence interval
Precipitation Freauencv Estimates (inches)
I {1- n *�� 60
m n m n 11 m n"m n m n I� min II hr II h �1 hr 11 �� hr 11 11 h8r ji day 11 day II day 11 �� d 0 �� (lay I1 day 11 �I day
n1tnJ1rlinnf-r nw5.nnaa.vnv/cai-binlhdse/buildout.perl?type=pf&units=us&series=am&statename=NORTH+C... 7171200E

Attachment B
NC DENR — Division of Water Quality Stream Classification Table for
Burke County

NC DENR - DIVISON OF WATER QUALITY
.0308 CATAWBA RIVER BASIN
Class
..ame of Stream description Class Date Index No.
Muddy Creek From a point 0.5 mile WS-IV 04/01/99 11-32-(6)
upstream of mouth to
Catawba River
CATAWBA RIVER (including From a point 1.2 miles WS-IV;Tr,CA 05/01/07 ll-(32.31
backwaters of Rhodhiss Lake upstream of Canoe Creek to
below elevation 995) a point 0.7 mile upstream
of Canoe Creek (Morganton
water supply intake)
CATAWBA RIVER (including
From a point 0.7 mile
WS-IV
DS/03/92
11-(32.7)
backwaters of Rhodhiss Lake
upstream of Canoe Creek to
below elevation 995)
a point 0.6 mile upstream
of Warrior Fork
Canoe Creek
From source to Burke County
C
03/01/62
11-33-(1)
SR 1248
Canoe Creek
From Burke County SR 1248
WS-IV
08/03/92
11-33-(2)
to Catawba River
Silver Creek
From source to a point 1.3
C
03/01/62
1.1-34-(0.5)
miles downstream of Clear
Creek
Brindle Creek
From source to Silver Creek
C
03/01/62
11-34-1
Hall Creek
From source to Silver Creek
C
03/01/62
11-34-2
ne Branch
From source to Hall Creek
C
03/01/62
11-34-2-1
Anderson Branch
From source to Silver Creek
C
03/01/62
11-34-3
Jack Branch
From source to Silver Creek
C
03/01/62
11-34-4
James Branch
From source to Silver Creek
C
03/01/62
11-34-5
Clear Creek (State Hospital
From source to Broughton
C;HQW
08/03/92
11-34-6-(1)
Reservoir)
Hospital Water Intake
Clear Creek
From Broughton Hospital
C
03/01/62
11-34-6-(2)
Water Intake to Silver Creek
Sutterwhite Creek
From source to Clear Creek
C
03/01/62
11-34-6-3
Shoal Creek
From source to Broughton
C;HQW
08/03/92
11-34-6-3-1-(1)
Hospital Water Intake
Shoal Creek
From Broughton Hospital
C
03/01/62
11-34-6-3-1-(2)
Water Intake to Sutterwhite
Creek
Chestnut Flat Branch
From source to Shoal Creek
C;HQW
08/03/92
11-34-6-3-1-3
Double Branch
From source to Clear Creek
C
03/01/62
11-34-6-4
Silver Creek
From a point 1.3 miles
WS-IV
08/03/92
11-34-(6.5)
downstream of Clear Creek
to Catawba River
Little
Silver Creek
From source to Burke County
C
03/01/62
11-34-7-(1)
SR 1150
Little
Silver Crack
From Burke County SR 1150
M$-Iv
08/03/92
11-34»7-(2)
to Silver Creek
iiley
Fork (formally
From source to School for
C;HQW
08/03/92
11-34-8-(1)
lled
Burkrr.ont Creek)
Deaf Water Intake
Bailey
Fork
From School for Deaf Water
C
03/01/62
11-34-8-(2)
Intake to U.S. Hwy. 64
2B .0300
Page 10 of 40 201 1-02-05 07 I K 53

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oreg
EENV
^°�° (;,, CONSTRUCTION ENTRANCE x.rillTifFrIC OF E f .a x o r�.. a" Ne
EP C BALEEN/SD,M"o E•
. .S F „ xrr
Tom_ ;. w,.,knlL a-. = a
�N ENESeN
LC
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rL ,�" � 1�,
O ., 0 kx i ATT,E.AmEM EVENT,xRr E nh
+_.. SASS Ira
xtr�x,,.I..a[.u,DE NI.... "EmxT AP BASHER
ewARe
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ed
PoE_.Inz c Wx ]P Pogo To ER Ix➢r.FAFNA FABRIC SHALL DE PEPIACED �T-' t SEAL
STCV=-SECTION - - De3azE
'J/EI /ROC4 ALTER CAh.4 vP�x PPC. �E"Eo-TON¢ox '"�fvG+<
'..FGi.i'KZ
o, TEMPORARY SEDIMENT FENCE
BAFFLE ITYP.1—i
V `P4 U 1
V
EARTH'BERM-
SEDIMENT PIT
n tevcxF ~�-� r _ `�= J •
,,SAES. un PnFT F IN SiAL_A-:DNA-S=' 1 1�y
N0 -,Dxre.reelvan---.a--- ` ^.� �"--.0 TE:PCs-=.. fx`PoL DCR um]'C'lo" �1
.z)o°LP "° xrT Aere .0 s A .Y :-1 . I H
.o .xT ro.Ar"PAEN. /, 'a
"}a11 nw'tvN gag
OP DIP FARRiG nMT n1=rRe IF,xr.'x,Ru.
sx1 as AxcnoT¢n w'nNxc Arx z]A°AAexu,r emus vP rlE slnas s,Ea,'LR rots �J I1
A)]6.mo.x 62.RmCEecan.cr Tes E. ?ESFECI-VE VEIN
.ca tee•An- axA ZgL C W Ff1
EAsxs I.rss Mi.ZO•,orc L.r,FE Tao. °AwxD iA Am',��) MA]NTF.N.:NCrvrnecT HA'FLE5 AT[.East'ONCE 'CI O' El
- A WEEK AND AFTER EACH RAINFALL. sJ
MAIN ANY REQUIRED REPAIRS IMMEDIATELY- Z •" 4
SHOULD THE FABRIC 0?A RAFFLE COLLAPSE.TEAR, l l
n `\ ]NEEFECTIVC.REPLACE IT PROMPTLY. OR BECOME 1 V
caLr.cls" �� dN
REMOVE SE SEDIMENT DEPOSITS FLED IT DURING
HELPN UEE[ TAKE CARE -
t0 AVOID DAMAGING THE BAFFLES CORING D AFTERNT DEPTH "
•
SHOULD NEVER RECORD HALF THE DESIGNED STORAGE E.EP1H _ /A., ,• O
SECTION, 'VIEW r' :
•
SE pIILIENT OAS e� �C. "-'a r
THE BED]MCNT TRAP WERE SIZED USING 3860 cv.}t/➢ISTURBED ACRE THE ROCK / 'QWA,' �J
'LITER DAM LENGTH WAS ED USING TABLE OS..REQUIRED SURFACE AREA IS f i Cl)-+
•
EASED ON 135sr PER Ole,sl -„IR. R
00=PIY'.DIA IN INC[ES
RLA FWAL GRADE
Rx A"R 3AF=L- IVST?LEA;GN-STE' 2 RE DEPTHAnr""k° u°re.Re NO,SPIKE THE FAT,.cqE A cmmxvmm PIECE
\-FILTER F.AIIJt[C
TEMPORARY SEDIMENT TRAP RIPRAP A on SCHEDE(PER FIG ss)
1 W CLE.-
,17
�, OUTLET .ID DEPRRTH le 3%Do L (0,Cl.„) STONE
PIPE, ,e, ° IF ,e La. ,A El."R KERR'S HICKO]
,. ,e , n.,:A 9 MIX CONCRI
DATE: APRIL 9.200F
TB, RIPRAP DISSIPATOR SCALE: NOT TO SCAT
`E PRO., .I613
REVISIONS:
1
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EC
-
Lin,LIRE RIM ]xFa;4= 1111 ,
OP
,WAY FOP EMU
psTE sl'6N8 I I 1 1 FABRIC'aiD-.ERE Res " I AVNLOILLD TO pals-1.17f1
ON LRmu Im or FENCE.
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duadFdrr n c1.'RA o eu�xc $1, 1 y�e.�O P . E.STEEL AWLE
MID eaouna 141.
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CROSS-SECTION ��r - _
xRA CONSTRUCTION ENTRANCE F"".
M 19.
SHIRLEY,'11 m
a I=
muo
EOPPP OM,
r, .oTPc " m•rFUL PI x WHEN � GAF
1—,:-...;.':-...'-- IMPAIR ERAAL BE LADE AS IecsesaAD iwl.0 Or NTT 01 =p y55 iy
STONE-SECTION IF TOD"E ro EE[F mITTY. SEAL
„BIM.-AGES x,"x o a1RNR ON
--_.q
\h§tNr"
W'EiR/ROCK FLTER DAM '..4'4`V1K.5
BAFFLE V9YP.I TEMPORARY SEDIMENT FENCE
-��AE_ + y 7
EhATP'RF.RN-
- _ SEDIMENT PIT
R NPe 3A,FLE INSTALLATION-S IEi' ' -` -`�
N° a➢n AA. an I x',9.HCAArxxM.A°A=LRFA .R� r'Ln'""11,4t
R,RAF FR. AR,en..,„ „, oA r I.r Axe A, ° F H
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AHe P. LE
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ah gA�Rx il.- , nN°TTl� %. R,Pr-Ax SIR-Amy.-L„Ee— o a w
AI u. errs PERSP=DTI V" VIEW v°.a�a•.°°Lf° x=s10 o LLAINTE%ANC
sr.E"s less Tx,x e,um°w."ec nc.. avalsR[x rR�cr� PELT BAFFLES AT LEAST ONCE A PEEK AND AFTER EACH RAINFALL.. Cis,
- AII MAKE ANY REQUIRED REPAIRG IMMCD]ATRI.y_ +
\ SHOULD THE NABRIf'HF A RAFFLE COLLAPSE, OM ECE l ' _WJ
,,,,,COMPAC^cu R \ Du INEPPECTIVE,REPLACE IT PROMPTLY V I�
▪ SEDIMENT DEPOSITS NNEN IT REACHES HALF F LL.TAKE CARE
• r0 A OIU DAMACINO THE HAFFL.EH DLRIvc CLEA SEDIMENT DEEM _ B. ^J1
▪HDCLD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH I O
• SEC TINS VIEWrS VENT RASH '•� FEE ParatatAlleAr a..[n�.k)
FILTER
RSEDIMENT TRAP AS ESIZIEDSZE�INGUSING'IABB E 8 NOnt ILOT]REDC SURFACETHE AREA DISC E • U
BASED ON i35sIC W
PERrIe. t ` } s
Bp=PIPE DIA IL'NCHE.,
— �I ]DAL GRADE W
T R°PI,. \J
oR.Am BA=FLE INSTALLATION-STEP 2 !
A°"""'° N.Pc m xrn Ntc xo.W MICE 711E F." DEE A cR".1. , ?MEM FILTER EADDIc
RIPRA.F aPrfON SKIVE (''R F G. a n9j
(" - TEMPORARY SEDIMENT TRAP SIZING CE CUBIT,
E�� I OUTLEY (ID de, 'STAR DEPTH SN SEE, A, ID,FCL,) STONE
FIFE A . .° 0,1A.R KERR'S HICKOI
F,.E. .R A z O. " CLM E MIX CONCRI
v....r .n . I, IL 1, a=A _ - - A C'.a E I
DATD', APRIT 8,200E
T RIPRAP DISSIPATOR SCALE: NOT Tx)DUI
E GG/ PROJECT- 1a'-3
REVISIONS:
01001>u4ROME_
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•
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�rnPau]VnLLr OE OF F11YM
t.STATHVOC
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(,-,;-; CONSTRUCTION ENTRANCE PP 11,D0•111 NOON AND WxPAtaER DOM `"`"
RBI." Pr'' _ le'Nn INx AE A
n® n'Mr" sn--eI EVI
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MR mx. _ITI; Tm- sx-7nme"e wrxe.
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L101011A.A¢. ,9 .MIN£
WEIR/ROOK -I_-=R CAM .,"'- vK-i
TEMPORARY SEDIMENT FENCE
' BAFFLE(TYP.J 7
EARTH BERM /
--'-- `tr - SLDDIENT PIT ++I --�
.•A.-, �x Bnrrl I- dNs a_LkrioN-srEP 1 �� _
wD ",max°r.a ., °*�g.`a";n7. �euD;Dx E oN
''Aa „'''''A " ''°a.
A)L� PART an AlT.S.FARM, oua°P°.n°CELL
F.A
AI rxE"mrmm Av aiRFa or Tee FARwc .wr'AA,„m.c 3..Anc TALE„. e.sn� I - La
4TEE h7 EEx E TA,E:rx . e]r A `.o®,3a 57."�2.-.A,�n D ea IMI 41
,IBYA'S IF 10..°OACN lIONG a 7,,-,rs PERSPECTIVE VIEW - �(,1 �
c suN.m w^10100 MAIN-TENANG O
nw9ws lASA rw xo LOW•ry V.x+x INSPECT BAFFLES AT LEAST ONCE A SEEK AND AFTER EACH RA]NFAIL
-- 'S I MARE ANY REDO[EED BEEP-IRS IMMEDIATELY. U
SHOULD,IS ]C'OF A DAFFIF COLLAPSE,TEAR,OR BECOME -
EtZre'Ll~ xI"\ I.A'CFFECTIVE,REPLACE IT PROMPTLY.
COMPACTED
REMOVE SEDIMENT DEPOSITS WHEN Tr REACHES HALF FULL TAR CARE 1 - H
Ci
TO VOID DAM-ACING THE BAFFLES➢URINGCCLEANCLT SEDIMENT DEPTH �JI
• ' SHOULD NEVER EXCEED HALF ICAED STORAGE SEPTl1. rE. f
SEC ON 'r[;J SE:IMES S? IN 3 eon litgf ''i`"'t°' O
THE:ED[MF.-T TRAP WERE SIRED USING 3600 cu EL/EISTOESED ACRE.THE DUCT `•R. '
FILTER DALE LENGTH WAS SIZED USING TABLE 6.80e. [REQUIRED SifRFACE AREA IS d
BASED ON a3asl PER cry ?t
IA=PIFN DIA 1N VOTES
_ A • `FINAL GRADE
roL..-ex C` LE a ' A. v nAck I — I
wIN DVH
FILED WI.EOMAND B.<EELE ns-A_LATIon-STEP Z
WE DO NOP OCE ne MEW WE ("WM, `FILTER-AEI0A'
R I'RA' APRON S ZINC) iEt3 -IG, de. „)
/s TEMPORARY SEDIMENT TRAP SCHEDULE FLIEN't:
EC 2I
\/ OUTLET Q10 dr. SRAy DEPTH D., O%D. I I ICA AL.) AT'➢SE
10F n .f.. A ]a- e . I. ,A Cl...,E KERR'S HICKO:
C IA CLASS 0 MIX CONCRI
r,r', _I . R Le. 1 — 1 . CYO e
DATE. APRIL 0.2ODI
RIPRAP DISSIPATOR • SCALE NOT TO REAL
EC 2% PROJECT: N1613
/ REVISIONS:
ITRUOINM,,,_'-1lD.^r AwA:r
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NOTE'.IN ORDER TO MEET THE NCDENR REQUIREMENTS OF NPDES PRRYIT HCC140000.STORAGE FOR THE 25YR,24HR RAINFALL EVENT IS PROVIDED ON THE PADS IN I NOTE'. THE BASIN CONSTRUCTED FOR THE SIOAOfER BASKS IN THE SNO)ION `\
NO D11ff..U[ E VICINITY OF THE CONTACT twee FOR WASTEWATER. STORAGE FOR THE 25YR.24HMk RAINFALL EVENT FOR THE ENTIRE SITE 33 A[80 PROVIDED IN THE ,,�,$ CONTROL PHASE WILL HE CONVERTED TO THE WET DETENTON BASIN. ' PHASE II S T 0 R M WATE R PLANS NOTE: IRE BASIN CONSTRUCTED FOR THE STORMER BASIN IN THE ER05[ON f
WEf nETWNI'10N POND AS A PRECAUTIONARY YWAN3 OF PREVENTING OFF-ST'E WASTEWATER i NOTE:IN ORDER TO MErsf THIN NCDENN REQUIREMENTS OF NPDES PERMIT NCG140000,STORAGE FOR THE 25YR, 24FM RAINFALL EVENT IS PROVIDED ON THE PADS IN
�j THE IMMEDIATE VICINLTY OF THE CONTACT AREAS FOR WASTEWATER. STORAGE FOR THE 25YR,24HR RAINFALL EVENT FOR THE ENTIRE SITE IH ALSO PROVIDED IN THE 1 CONTROL PHASE WILL HE CONVERTIOI TO THE WET DETENTION BASIN. I
APPLICABLE ORDINANCES BY CITY OF YOAGANTON: 1)Chapter 7.Watershed Pmteetipn DATE OR BOUNDARY SURVEY: Marco l8,201E H 1 WET DRTIDRTON POND AS A PRECAUTIONARY MEANS OF PREVENTING OFF-SITE WASTEWATER. r�1e I NOTE:DI ORDER TO MEET THE NCDENR REQUIREMENTS OF NPDES PERMIT NCGI40000, STORAGE FOR THE 25YR.24ER RAINFALL EVENT IS PROVIDED ON THE PADS IN i
2) Chapter 8.Phase I Stormwater Ordinance DEED BOOK 1754/PAGE 499-502,Burke County,NC (III 1 •ems ly . THE IMMEDIATE VICINITY OF THE CONTACT AREAS FOP WASTEWATER- STORAGE FOR THE 25YR,2411E RIMEFALL EVENT FOR THE ENTIRE SITE fS ALSO PROVIDED EN THE t}1 0I
PLAT BOOK 38/PAGE 122.Burke County.NC I APPLICABLE ORDINANCES HY CITY OF MORGANTON: 1)Chapter 7.Raterehed Protection DATE OF BOUNDARY SURVEY, March 18.2008 i3 WET DETENTION POND AS A PRECAIGIONARY MEANS OF PREVENTING OFF-SITE WASTEWATER- t
SITE ACREAGE', 10.7E Acres2)Chapter B.Phase II 3tormweter Ordinance DEED BODE 1754/PAGE 499-502,Burke Catmty,NC 1 ���
WATERSHED and sYORMWAT�INFORMATION AND[tBgttfRBMHIEB: DfAT11BOO ACREAGE,4.7 Mr. 0°+ PLAT BOOK 3B/PAGE 122,Burke County.NC
W APPLICABLE ORDINANCES BY MT OF YORGANrON: 1) Chapter DATE C SUMMIT st1RYEY: March 16,20De
BUILT UPON ACREAGE 2.9 Acres 1 pter 7.Watees II Protection
1)River Beebe cetewbeSITE ACREAGE. 10.7E Acres �•! I 2)Chapter B. Pbese A byolmwatar Ordinance DEED BOOK 1754/PAGE 499-f502, Burke County,NC 1
BUILT UPON RCENTACE:27X
2) Stream Noma: lake Raodaisa WATERSHED and 3IORMWATER INFORMATION AND REgVIREMENTs: TIRUPO ACREAGE:47 Acres [} PLAT BOOK 38/PAGE 122. Burke County.NC
DENSITY CLASSIFICATION: High Density f BUILT UPON ACREAGE 2.0 Acres f
3) PCA Clam WS IV Protected Area l)River Bestn: Catawba ��hFa 3IFE ACREAGE: 16.7E Aerm
ZONING:Heavy rICATIO l(Hai) BUILT UPON PERCEN'CAGB:27% ♦;.v
4)DSatricl: Corridor DletricL 2)Stream Name: Lake Ahod6ue WATERS!®and STTORMRATBR INFORMATION AND REgtNREYEhD'S. DLUNBKD ACNSAGE:42.Ames 1I��(,�
50¢CLASSIFICATION:FeC2 -Fairview Beady Clay Ivam,BR to 15%lmpea,moderately eroded (Source:USDA) '� N DENSITY CLASSIFICATION:Hugh DeAaity 1 BUILT UPON dC Industrial
2.9 Acres r l 1
5)Built Upon Limits: 24%Vex BOA for Low Demlty(Cho.7.sap.9-7008) 3)PCA Clew: W3;v Protested Area IJ%rer Heels: Catawba
V
lox Yax BOA sor JURISDICTIONAL WETLANDS:Juriedietioml Wetland&stream De9naatlan Performed by WHR Cavmtltaote.Inc ZONING: Heavy LnduatMal(H[) BUILT UPON PERCENTAGE: 27%
Nigh Density(Chia.7.Sec.9-7069) WHT7dND MAP Prepared E Gateway Or. k Development.Inc end Certified 6 USACOE, A 4)District: Corridor Diatrlet 2)Stream Name: bake RhodhLas
Pieper y y ding l)mrelopm y pin 2l,2008 / SOIL CIASSIP'lCATT°N:FnC2- Fairview Sandy Clay Loam.8R to 15X*tepee,moderately eroded (Royce:[78DA) 'A DENSITY SWICAPTCATION:High Density i
e) BIIP Requirement: Wet Detention Bee1n(Cita.7.See.9-7009) FLATLAND AEU ON SITE:p55 Acres ri n 6)Built Upon limits: 24X Mae HUA Tor Low Densty(Cho.7,Soo.9--7009) 9}pCA Cora; 1!S IV Protected Ares JURISDICTIONAL WETLANDS:7uriedicttaaai Wetland&Stream Delineation Performed by WNR ComWtanta,Ice - ZONING:Heavy Industrial(Hit) •7) Runoff Control: FDA l'o1 Rainfall (Cho.7. See. 0-7000) WIMAND IMPACTS Nana xn 7GX Max BUA for sigh Density( 7,Sec.9-7009) WETLAND MAP:Prepared by Gateway trading&Development,Inc end Certified by USACOS.April 21.2008 • 0�I 4)1Helritt: Corridor 1Hetatet SOIL CLASSIFICATION:FeC2- Frireiew Sandy�y Loam, BR to 15X slopes,moderately eroded (Source', USDA) .�
e)Operation&Maintenance Agreement w Required between City and owner(Cho,e, see. 9-6021) RECEIVING STREAM:Little silver Creek.Claes WS-IY # a)BYP Requirement: Wet Detention eaem(Cho.7.See.0-7009) WETLAND AREA ON SITE:0.55 Acres ma°n f 5)Built Upon Limits'. 24X ibex DUA for Low Density(Cho.7,See.9-7009) JURISDICTIONAL WETLANDS:Jurisdictional Welland&Stream Delineation Performed by WNR Consuitenta.Lac ism
9)Performance Security for Installation&Meintenaace le Required(Chi.B,(Sae12 9-8023) d m 7)Runoff Control: rime i•of Rainfall(Cho•7.Sac.9-7009) WETLAND IMPACTS:None -•tr`� 70%Max eUA for High Denrlty(Clew 7,Sea. 9-7009) ND MAP. Pr b Calaway Greeting&Development.Inc mid Certified b IMA0°E, tit L
�`. i Prepared y y lag Amen. y April 27. 2008
10)Deed Recordation&indication on Plat(Cna.8.Sae.o-8024) go 6)Operation&Yaintene¢ce Agreement is Required between City and Owner(Cho-8, Sec 9-8021) RECEIVING STREAM',LRAM silver•Crest. Clore led-Pi 'CZN 8}IMP Requirement, Not Detention Hasid(Cho.7.3as. 9-7009) WETLAND AREA ON SITE:0.55 Acres m
11) Recordation of Agreement(Cho.8.Sec.9-8024) WET OETENf11Ne IN1'OWMATMN C 9)Performance Security for Installation&Maintenance Ls Required(Chia.B,Sec.9-8023) $ZZN 7)Rimer Control: first 1-of Ratan(Chi,.7,See 9-70E19) WETLAND IMPACTS:None
in)Maintenance Emament(Chet_B,Sec. 4-t5027) •DTP,- THE 0:-1 -• F1A3QN ELLS BEEN➢LSIGNED TO PJICLOiO.RfORYWATrq RWQUIREMENI'3 IN ORDER TO HOLD THE RUU(�IfOFF z 10)Deed Resvrdatloo Indication on Plat(LTn.B.See. 9-8924} o0 8)00eration&Mal00.eBanee Agreement is Required between City and Owner(COo. B,Sec.9-6021) RECEIVING`STREAM:Little Myer Creek,Clew WS-IV
}fROM THE 25YR. 24HR RANFALL EVENT. RTORACF;FOR TIES WANT IS ei.50 PROVIDED IN TNF_HIMEDJAI ARRAS OP OPERATION n' II)Recordation of Agreement(Cho-8.Sec.9-8024) WET9ATENTIONINFOR IATNNa realm:lettoas shown iw tables oe thin sheet) x - 9)PertormM¢ce Security for laela➢atiea&Maintenance is Remered(Chet-8,Sec. 9-8023) few
AND TIM POND�IL4,ACT AS ADDITIONAL STORAGE INCREASE THE FACTOR OF SAFETY 12)Maintenance Easement (qua. B.Sac. 0-8027) NOTE- THE an➢errelSO2L Baser 14A-'_REF34 P '5x I 10)Deed Recordation&Indication on Plat(Cho_8,See. 0-atf24) o
EROSION& SEDIMENTATION CONTROL PLAN: Governing authority is the North Carolina Divielon of Land quality,Asheville Division 1Bolt THE 25YR 24HR I AS AII.EVENT_ STORAGE FOR THIS.xyENT ry Ala°PROVIDED IN THE&MONATE AREAS OF OPERATION °' 11)Recordation of Agreement(Cho.B,Sec. 9-eau) WET MetENITON INFTLR TION 1Caltationa shown in tables an tale sheath a
Permanent Pool Date to Control First 1•of RunofF. AN➢T1IN POND WD.L ACN AS ADDT]TONAI.STORACF Tn INCREASE THR FACTOR nF SAwRy'Y 12) Maintenance Basement (Cho.0,Sea 9-0027) NO�l! 'rfiR 1rCC lerteRTION Bite9 AS BEEN nySiGNED TC EXCEED STORIAWATER RE4 RG Rt1NOFF
Required Surface Area Total =4,715 SF Actual Suface Area Total= 10.230 SF EROSION&SEDIMENTATION CONTROL PLAN: Governing authority Is the North Carolina Mvleion at Land Quality Asheville DivWoa FROM THE 25YR 24EIR RAINFALL 6•YEHT STORAGE FOR THIS EVENT 13 ALSO PROVMED IN THIN IMETIMA ARFAR OF[1PERATMe
Required Forebey Area= 943 SF Actual Fenebay Area = 1,369 St ,AS uta•.4 Pe menent Pool Data to Contra]First.1•o[Runoff: ANT)THE POND WILL.ACT AS SDnIT10NAL STORAGE TO INCRFA4E THE FACTOR OF SAFETY
WET DETENTION➢ESIGN ELEMENTS(Source -NOON 3tormweter MP Manual): Required Meld Pool Area = 3,772 SF Actual Main Pool Area = 0,1371 SF g Iv-, Required Surface Area Total=4.715 SF Actual Surface Area Total= 10,230 3E EROSION&SEDIMENTATION CONTROL FLAN: Governing authority le the North Carolina Division of land Quality,Asheville Division
1)Sliding Mall take Irate account runoff at ultimate build-cut.including off-site drainage- Required Poet Depth=6' Design Pool Depth= 3'plus 1'additional for sediment toregeArd `t Required Forehey Aral 943 SF eau]Ferebey Area=1,359 3f ,;:' � '••„ Permanent Pool Dela to COnlral First 1`of Runoff'.
2)Vegetated 61011.shall be ao steeper than El. - SEAI. _ WET DETENTION DESIGN ELEAANT9 (Source -NCDWQ Btoemwater LIMP Manual): Required Main Pool Area e 3,772 SF Actual Yarn Pool Area=8,671 9F ea 4!': Required Surface Area Total -4,715 3F Reknit Surface Area Total=10.290 SF
9)tJMp MAD b•located is a recorded dralaagv Meat with a eecoraed*cam an.emeat A public Run, Temporary Pool Data la Control FirMl.t'of Runoff for sioeTaweter: r0 l)3hsing euall take.into aecoent runoff at ultimate build-out,Walking off-Me drainage. Required Pool Depth.3' Design Pool Depth=3'plus l'additional tar sediment orage ? ` Ntr. Required Forebey Area a 943 BF Actual Forebay Area= 1,359 3f -aii-
4)Basin ilia...age ehlo be evenly distributed noses a made..30 feet long vegeteU+e strip mime it u designed Required Treatment Votume=9,505 f]' r';�7 iyskerl® 2)Vegetated elopes shall be no reaper tbm 3'.1. ',F WET DETENTION DESIGN ELEMENTS(Source-NCDWQ Stormeeter BHP Manual): Required Main Pool Area = 3,772 SF Aetna)Main Pool Area = 6,871 SF MI. t1"•;
M remove 90%T83.(A 50-N altar se reguifad in name lacatieas-) Temporary Pool Data to Control 25YR.24AA Rainfall Event(8.Si87 for NPDES Permlttlag for a Bendy-mix Plant: ,.�FE. 3)BelP Mall be located Ina recorded draioege easement wDh a recorded acmes eat a public ROW Temporary Poo]Dole to Control First 1•of Runoff for Blormwaten 1)Siding atoll take Into account runoff at alWmnte build-out.including aN-site dreteme. Required Pool Depth e-3' Design Pool,Depth=3'plus 1' additional for sedhment storage ;pit m t''
5)R my portion le used for SkEC during neaetrietion must be cleaned out and retilraed design state_ Required Treatment Volume =62747 CF Actual Treatment Volume =84046 CF """"" 4)Beata discharge shall be evenly distributed mom"minimssm 30 feet long meatier strip micas it u designed Required Treatment Velu me=9,565 CF %-6 .09 2)Vegetated dome Mall be no steeper than 9:1, SEAL
6)Tba deaden storage,ball be above the permanent pool_ EV/jlp g• to remove 90%199_(A 66-ft filter to required in some laallom.) Temporary Pool Data to Control 25YR,2UtlN Rainfall Recut(6.664 for NPDI[t Permitting for a Ready-ores Plant_ '•,=AC ,, 3)BMW shall be located m a reaerded dre4anys cerement alto a recorded t 000 meiment a public ROW. Temporary Pool Theta to Control That 1"of Runoff[or Stormiester: �
7)Dleoharge rate fallowing a 1-Inch rainfall man completely draw down the temporary storage volume bearain 2 2 Yeer➢esipn Diaobarge Q2 e-14.04 CIa2 5)If my portion w used for S&EC dories construction meat be leaned out and returned design state, Required Treatment Volume = 62747 CF Aetuel Treatmeet Volume= 84,665 CF ""'•^•e Q Bann saeeherge shell be evenly distributed acraee a mtplmum 30 feet lops vegeNUve strip unlea it fa aeaigimd Required Treatment Volume 9,565 CF �1y,4td,f
And 5 dory- 10 Year Design Discharge Q10=19.05 CFS ��"" 6)The assign storage shall be above the permanent pool. H//z�qg to remove BO%TSB-(A 50-K Blt"r, required in some leeellane) Temporary Pool Data to Control 25YR.24FB7 Rainfall Event(6-50')for RPM Permitting fora Ready-mix Plant: c'*fie =.
a)7Le...rev depth el Use permanent pool ebaa be a Wedmore of 3 feet- 25 Year Design Discharge Q25=21.71 CF3 .4015ar:,Y/fie. 7 note following a 1-inch rainfall shall completely draw down the tam dotage volume between 2 2 Year Design Discharge 2 = 14.04 CA'S 5 If b0'^^•••••"
Discharge o.iag temporary age gn ge Q ) say poi`A b e sd for ate the a t p mast be cleaned cut and returned design date- Required Treatment Volume a 62747 CF Aetel Treatment Volume 84A65 CF
9}P he nnwnt pool the area shall
n to determshare-circuit
the Tables E9-1,la-$10-9,and E00 Year benign Discllerye Q100= 25.75 CFS and 5 ds7s. ]O Year Design e Discharge @20 m 2L 5 C113 ��/�.� ` e)The doele storage ing be shoed the permanent shaltpeel- 8�/d�a6
10)The now within d the pond aheu not short^cis+au4!the pond. B)The anent*depth al the .%MAIpermanent pool shin bet• g Tebbe l 3 feet. CO0 Year Deesig lDerchege Q25= 2l 5.5 CFS �"' y'a91Y-- a Di5 liege note 1pDowing a t-hare retell shalt completely draw down the temporary storage volume between Z 2 Year Design Dioched-ga lQ c 14.94 CFS
11)HILT shall be designed with a farebay. Primary SpiLSwey Summary: 9)Permanent pool ar•rsace urea,bw de determined uehig Tebbe 50-1.10-2,10-3,end 1[vJ Year Design Dixhar-ge g100 =P5.75 CPS sad 5 days 10 year Design Discharge QLO=19115 C!5
12)Bairn else slopes shell be elabilised with vegetation above the permanent pool level. 3D'Riser Barrel >4 1.0)The flow within the pond shall not short-circuit the pond. 8)TEA a.ore0e depth of tie permanent pout 0.11 be a minimum of 3 feet- 25 Year Design Discharge Q25 a 21.71 CPS r ei nW/reoi1er
13)The pond than be dodgpee with vide elopes ne deeper than 3:1- 24.Outlet Barrel H II)BIM WW1 hadevigo•d with a fareboy. Primary Spillway Summary: 9)Permeaewl pool surface ewe Men be determined wring Tables 10-1,10-2,10-3,and 300 Year Design Discharge Q1e0=25.75 CIS
14)The beam Mall be Mingo.with a0Ntoleat aedJnieai storage le ells.far proper epereeme between scheduled clmecene. Primary spillway Capacity•Creed of lLmergeney Spillway=23.13Z CFS 12)Bann aide elopes shall be'stabilised with vegetation above the permanent pool level. 30•River Barrel 10)'Me now within the peed shell not short-circuit the pond.
16) shall act be located to produce adverse Indiana en viler level°in sdsaeeht.edemas. Tote[Spillway Capeelty•0•Flew above emergency Spillway= 34 B7 CFS y ,z Qi is)Ti au e pond WWI be newsmen with ode slope,no steeper than 31. 24 Outlet Barrel L. 11)3MP shall be designed withw et Scream. Primary Spillway Summary:
le)A roliimem l0-foot wide vegetated shelf shell be Metalled around the perimeter.inside edge et the Mier ghee be fr - el)The be shell be designed with sufficient sediment storage to allow for proper operation between scheduled clemuuts. Primary Spillway Cepeeity 8 Croft of Emergency Spillway e 23_62 CFS 12)12)Bmn side elopes Mall be stabilised with vegetation above the permanent pool level. 30"River Barrel
below the parmaue.{pool elevation:the outMda of the shelf elute he V*bow tee permanent pare ebvatlon Drawdown Information: O N 16)MEP.Lull not be located to produce seven.impacts on water 666 is ediecent wetlands. Total Spillway Capacity in e=Flow above Emergency SpWwny=34.87 CPS Iiy Q • 23)The pond aheu be designed with side dopee no steeper then 3:1, 24"Outlet Darrel
l7)The forebay volume should be about 20X of the total permanent pool volume,leaving 2.5"Reverse Pipe Drawdown Orifice Ed 4 16)A mailman 10-feet mie vegetated shelf shall be metalled nrdund the parameter.Mande edge et the shell Mall be a rZ 'Ia 14)The basin shell be&non.+Rh eeMdent secmierrt avenge to all.for proper operation beinemi scheduled cleanwLa_ Primary Spillway Capacity•Crest of ltmergeney epille•y=23.62 CFS
about 50X of the design volume m the mein peel. Recommended Drnwdown Hine= 2 to 5 days Actual Drewdowr.Time=3.2 days Q • below the permanent pool elevation:the outside of the shell shall be(-above the permanent pool leveunn Drewdoem Infor•mat}on: s.. H i 15)DEP Moll not he loaded to P.M.anveree impacts oe eater 666 Le adjemet eeOmda- Total SpiDerey Capacity•6•Rots ahem Emergency Spillway. 84.87 CPS
10)freeboard amp be a minnrime of 1 loot above the menmato nage of Lbw heath lamer.be DWQ pester.ram bra Inlet Ordfece can be reduced to control the outflow rate. 17)The fonoba volume should be about 200 of tbs total permanent pool volume,leaving V1 0
bawd ad avelleble emenmh.sad repremet*bet wendow neon:wry to achieve the elated removal official:Low uugng W U y vo Recommended
Revere Pips Drawn Ti OrLfane to let A the permanent
nent t wide vebaae: a shell shall be installed all be the per®etep made sage or the abet.hail be 6 H 1•
about F BOX of M l design volume is the mom wig_ Inleommeaded D be Times I plug
6 da Actual Ilrawdawr'lime=3.2 tle 4, below the ermemlut pool Mould
be
the of of the adnl mall be 6•obeve the permanent elevation. hl
Elevation lnformatiom:Shown m dmtalLi sheet, ki 30 Freeboard ma able e o of lea!above Abe r srimum of achieve
tithe d b OWP p Pe Drewdoxn Infarinntioa:
Ly �' ) atebe naqurro y q policy.These ere Inlet Ofo I can be.RAoreduced.ueibg plug to control the outflow rate_ 17)The rore6ay volume should be odour 20%01 the toted permanent pool shines,1e.1.10 2.5"Reverse Pipe DrOwdRwn Orifeee sQ.� I-7
•Wet detention volume oeleWeOans based on the NCAW@ Stormwater Manual _ paead on mailable rwaare4 and mermaid whet menders necessary to achlrn the slater removal er3icl,ucres. illsv� about BOX of the design velum.le the male peel, Reememeaded Qrnwdown Um, =2 to 6 days Actual Drawdowr Time • 3.2 deya • i 0
WET DETENTION CALCutATI0N8 GteeeAad�_NKT Doge: 07r17pg SPUMY DESI(pI CALCULATIONS WELDING AREAS ON PADS `I • (7.' Elevation laforntntion:Shown for details sweats ill
�I [1 16)Freeboard shell be a mleimum 1 1 foot stew the menntem d ge of the basin-Required i D►Q policy-Taw.er* mist Minim can be=mooed nonirat[Le°Et s.rats, !CST
1 EIN]Qned ail ----- -- 1. Holding voluMes are bailed t! E4 *Wet detention volume calculation,bored on the NCOWQ Btormwater Manual L. based on mailable rowarau and reproveat eMul cvnaidere ememery to acmem the Meted remove)eralencwe. uafng plug to - FUG •���+t
- -... r�°w -... - tlMe�fROealWa OwielopeWtl _. - on eveAt Deer 1ewhinh la$,5B me as ` Q jCALCULATIONS J DaaIQ1NA By:NKr Date: 0727AeR SPILLWAY DESIGN CALCULATi 1N8 • .__ H111AING iLBS$ E PADS '1 •l Zr •Zr Ereaation InterptaUon'SMorn a%e a Le
X hwela sC w. at„raw ''�- z7 __._. _ ._. ___. - 2. Volume fa calculated netng • W nAT4 ""w - m detaHa Mesta
Caw 2WU M inane UMas° aAw- Y• ° AI fits.
DtTFNT10N` � • ----- 1, Holding volumes aze bated E 'lfat detention volume ET orrerax bawd AS the NCDWQ SLmmweter Manuel aaeWWWJJJ
Ada Aree to Pftyaet lMltle:NerrCne111 aj ,�la - -. -__ Checked By_ Dole _ n the 28YR,24HR reialeu ♦ ^p( - - ]doLDING AREAS 6a1 P
wrd4TOO swe..Awa orsae.ivrt'au.,,w.a,eu.soxxarv.--' Project
rm+>wwp A� Aw, v.erw _ - e �y f WET DETENrtDN CALeuunOMs I Comp. li r�'. Mcr Eel!: ma210e SPILLWAY DEWI9HcuculJtHOHs ate. g DC
reo -- - e -- '` - - - contact erase tar potenklel �( - Com n a •Dm,enpown event which is 6.58 Magee Y'
asr4w•iws:•.o. past__ - vn;i- - -__ ProjaetNO.• _ _ - _ Q see w.•rrasanbrWr _ •piny: _ereaeVC;radin9 __ _ - -_ - ---_ - - - - _ . ., ._ ._ . . 1. xolding wlumea are based
..... -._. wastewater. i1�e` -rr11 m.!lree-rmro-+).. Pro' IIYINso.XBcCerenY _ 2. Vlame is cicWatcd o _ - GheeRM DMe o
Asia tiin eau Masser iam• - tnr.i _. __-_-_ _-_.. __----- :-'-__ _. _ _ __-_ ,._--_-_.._..; -- 3. Stem-neater to be directed ID - .._ _ _ _. --____. . -- __.. _._ -_ INts r, - - _ _
s,.viceAae Da.",ova•' Pre led Ike: '........ wring t`•4 W '�'+ : m the 25YR, 24H rainfall ++.. ♦
.iic. ®erac.tom elBA contact arena for potentil N•werne "7
Wal rasa= 4 i waa Awe= 37 saw
,.etas a - a yam E-4 f eWlp6 LAnI event.h ch et$s$mpltea-
awe from tha rnntact rem, --.---:..: 3r 2. Volume Le caleuteted W tlglaMalraOiltlleRiwotiaE Mean 6'•e+eewnrR _... - - -- - Y worse.snits Asa QCl11 -- w1;K --- _... .. - wastewater. _barbs - -
=Meares.. _ _ am.rl..' - - - '-- .. -. ..- _ contact mean for tentiaT U - _._.. .- --_.... .......... • ' _... _ _ ... rad.r.i a1.so.�1,e4 -_-_Hied _rt -__ po [`i
P. Y 4. per0ta around the 6eda w•a seai 5etece A:mserel= -- fi' 3. stormwnter t0 be directed •?1
R,•m.9•M Rs,aos �n:ore4 *6=�+.miw se�ravHr'I - -- -- - -- - - pan lanonAar 'ay E w fea,.r ei.m.r•'w zerx a+sef-R rwrta0 Pro 1.4eN:Nan rannese uwn6 �1 r SL PI�e Fba riM3Calaeal YYIk FIla Ofgke lib. Pr'^grY Y _Easr9ane!!. T4Ne16 Shwa � _ sWrwASlo n+wod
v Mao-w,=16•s�w Fie _-_- - -Q11es New Neer 6pilwY Flout ipMM�l Flow Capeehf _ perimeters will be b y 1y r� - from the contact ernes. G ►` __ _ p __ - sy� - -._ PraNstlb.. • _•
.... .... .. __ _ _ _ _. .- 0 rl
ty• r.
___. _. feeWtete the storage- x t-t O L4$^.w°ry B'l�Alweq.aMMPJI _ - • ... Pipe Fbm_ rllaeeepw. ..g1Yr F6tg_..__ 0811co Flow .. Mom_._ E Ay!%I Total SplihYay 4. Berms around the Pad E U iLansm suwuAar�t aig- -. _SfPF; - __ __ __ - __ ___ -_._ -. _._ _. _ -- - 3. Stormwnter to be alrected ass . • __1 _ - •_ -- _- _ .- .. _ .. .. __... _...... 0.=obi c•b -n,.Aadmrwel 4•af.o Fri - l>f pit
q. ..... __..... -._ MMhmrt(9) 1034.00 C• OAS CmetEkwCon{q 1042 Creel F.NieOcndie 1042, Brant Elmelion011..... 1 ,_._._ Q p Ci fig - *am nisi - Ei® -SpIWWtr Flo.; BpMaY Flow I Capor.4 perimeter,fill be u,ili8rd to esAtdR Nf-waf Mae-.6 *
_ _ • --'- - ae. E4
V•dWe•ib•^.•Awe W=wxallwAae•ee,Yrdl r6=Owen wr rrwAfm) lowow(to0. mow o •
_ away from the contact [Q��
e__ _ -- _. __ -- .- _ .--. _.__- � ..__ .,._�_ facilitate the Ado _ 1 ,•'T_�.r - ___ Pip,Fla. joist -__Mlgkfbw - Or�icNt PIVW Prim. Detergency ie41 ._� ._ V
azcar .aa:ta __-- -- -__ Olret lan103 t919.50 ._ -. _ r ib- ..,.-sea. lei _- ___ ___ _ - _ _ __ _ r^ie r, O 7 rgencY Y_. 4- Herne armed the pad
F YrrW STOCILPIIE PAD 28.745 F (f} U N ._. ... _.. -. 'iI„A U q,,m.s•1,__ W=lla+awMwe __'4 eetms Fwdr: _ _ I� __ p H U ���777
� - - -_ _ _ __ -__ _ _. __ 6 _ VOLUME 7C1 HOIdi r 14.020 6 W• OW _. -- eisLMa 9U..-...-. 1054.IY: .._.... .___..Ge 0A ClestEntafm ll4 1042 GRMERwbn(g). 1042 Balk. 1043 O El �) atie•rb•K.•Aee V.Rey"1-srr...W ) :I..IY�wow_1as*x*0d RA flab Neer Reel Spillway FbW $WIIWNIY FIOW perimeters wW be u• to H
Cement - Oienleer 66 aY0TI1M . __ i.,�
Narph Ur'6At5) Pp tel PP 91� -_ iy
er.asAlrw3+s�e.,,uwe9m, • - - _... - - - olrre�r(f0• .. .. - -� __-- -. .. .-- ---- '--- _ --- _ -- .� _. ._-.. scrum.VITsl111g.15,140 CF ` V= - mar anew - oreetheelele___ 16sa.e7. - _ _ ... ... _ STOMPQE - 8745 CO III. $..ihvA _... _.._ .__ I .... - - --.., _ __. facilitate the storage. aGj a, d
... tea.. --- ..:. ._.... --..-- N.--- fp -•.. San _ gas 7. QFsatust'sI AmN - - UMW ._Na�rCrirRfn=0.ots) -- --- RalpeD�sn�rpr�, _!0 FIW,I]I_amebBN 90- --- -E 41M1w1_ _ B voLU11N' TDPHotn=214,e20.CF v D w sea -- m-- - -- -- __ MtYaentY4 t�84.00__ .Ce 0A _Creel Hawke01) 1fee Crest Famiii d1) 1042 Bonin rkwu9on(b. 1043 --._---,. , O el CI
Mprnwwe--r.m1m, 1,WO:.wuElteFeITISSAiuweerr VVAles waaiaiarfsase _ ..,r.•_ --. .... __ _ .- - A - • -- - i -4 _ -._
.._.. n .._ L -.. ____ L{16:- NfarEgdNan�CLHte (Tj Pl!!!•tm: 0lsfleYrQft_ : M ACTUAL VOLUME=15.140 CF ex47 aewT 01i4t Y�rtLp- 1093.60 _j f/]
_ • -- I.__,_•,. _....' Eumrehe...,,.. 9.91e.lA hem - .... --. .. _. reli -____.. _ _ _ __ OPERATIONS PRO. 28,741$F na.we.piagw slsea .. _-. _._ -- - _ - _ _- 71abMl Cw er40r•OAt51 ._P1pe Manske m,.._Pipe 30 (om mlMdBt 6 _ _-- - '1 eracepue PAD =20,745 y U
' sai6n 1 !Av.�lg _100 _-._ _ 9J{t0 .. _ w wm+wape?6.664. els.�aa4.1:Ttr•lwaaee haarelha wenira_.ew_ -... H' _- _ 1A. Yw -_.'eta _-_ _-_- _ - �9R ___ -.____ _ _--- _ _ !�VI ___ _ __ ___ _ -.. __ __' _ .. _ __ VOLUME T°80L➢- I4.B20,F `.1
. Maim _ _..__... .. - WUOr .. •_... .. VOLUME TO HOLD 14,$20 CF - r-. - .. 1Aan1i n OA16 mRM^an VMrE DvC LNa, H a Ili r1�• ewiSiaiMe.-msw, _ - _ _ paFI.IrP'9_.... _ _... ....._ .__. __ ._ _._. _ _- .. __. AcruAL VOLUME= 15,140 n LGt
terser Mao IOW _ - Ka 0.0q p_uaTr_ra67a _-_ T_ _.. ... _ _ __ C. 214
4--.-.• ACTUAL VOLD IK a 17.864 CM ..._._, _ , __ _ _ „_ ...I __ _ ,Me _-_. _. _.. _ W, ...___ m, .____ .. 91! ::..... .._.._- I __ OPERATIONS PAD= 26,741 BF 7•4•01m+'wrr w' _. __.. _.. _. fA Ban OM p
cl�W,1ti=awe.wlrea. sw - 1 1 .__it. ... .. _ _- G_ 9,1 -_- Ca _ 9b _ •__ _ _�__. T_. 'i__ ��' '(W _ _ T _ _ -._ _._._ ..._ w ! .. __ W _ _ . •_._.,..__.. _ YOLIFIIN TD HOLP=14,g20 CF aPamoavpalwrla pwaa oapwrWpare.ns laeewuea•mwa+m we. mes•_ma.' K!.. .. .. __ ._ .. ___ __- I"'R co
Oapnrpw=w.a t•arpoaw ._s.v , - PARTIAL GRAY®.PAD=18.W2 8F :` .- ' .- - _ ~_ O.W7a®TaaYama C. x.e _ __.. _._. _. .. _ 1uYM _ 0.015'6tr 'te .._, L011_._.... LIN Weir Equal.a CI:W _
tynie`n ofsispgaaev m_.; _ a.-a rrv.y ___:- 41
_.-_ .... .,_ .. _.... _-. __._.... ___.. _E.. _.___ .-- .-. _-_ _ __--. VOLUME TO HOLD c B,800 `F Ilepih trRegw�� 'a9Rea _16 __--._...___ ...._ _ Aare�) -..- _.. _ _. C. it -_-.... C, 06 ..... - _.- --- ACTUAL VOLUME=1 e L00251.5_ __ 100 ___ _-- _.,woo,
°'('O HUED a lS,U82O CF
weame aMe S?lart ar_!r�" I____,.te ..rieiTy_eillieby War,.'- _- _ _ __ .__ __... ._rHsa .$9e? ..__,.._ _.._-._ .__�._ _ _ ACTUAL VOLUME- B,9to CI rtpen,.ad Ormond ._ le ..-- - _ "- --_._.. - - ___ .___ .___ ._ .. _ ._ .._. •.• ' PARTIAL.GRAVEL,PAD78B48..02 SF ana.aamnia*. -" - VOW - -.- '. ._- i4 0D1l Oral T;iale 3ma --_ C. �.__..._ _.. ACTUAL VOLUME= 17.664
reniyelay P•abQ�eq•.riiea• 1.v-- _._._ _ ._.__ ___ ..... _ _._ _ ___ .. ..._ __.. _..- .__.... _............ .._... ..... _... ... ._ __.._ 9eeWae a!h _ mPatl Caege9rmii•4.p -._ .,....._...... ..-_ ... .. - Awe 4.6687 T. - __ _-__ __ VOIUYg TD HOW]=8,B00 Near...a�MiMm _ tie__ _--. 3.1 G. 3.1 G• O.a
.,. �i nw. leer
al
•
aev.ea efr baM!iH et�9G•a IeGI ..__ _.._. ..._.. - __. .___ - _. __._.. _- _._.... _-.. ........ ....._.. _._ _ _.... __-,.. - .. ... �F' __ . _,.. • - _ _ ...__ -._ L __ nµn .nroer slay. _ (in ACTUAL V°LIIYE = 8,et0 Cii dpndPan.n.erglpwrwq :ea
rb;IYepbava lalwm •u .Yw e.iimen Fiw/sfr N a 11usM --_H a _ M a N a _Moog alwa9le_ ifsaa a tied e..�io�dra,ep•,er�r•pl taetr 'wn.r aFaa4'Rwr - __--. T - __ .... ..___ . . --
�P3?lllwa_ __ .. _._. ______ __ - _. -_ -__. e••eew Mlww=�aaer tales
newer lNwe«.wet,. r4rae a'P!.,....._ A A tail 9abeprBr.! A WN W RYA MI IeMO [oil ---Iq I4 kW./ KHRR51-LCKORY READY rwaoa rw.e Of• -.' .-.-._ --- bars: _ - - • ..-- 302 SF
PARTIAL
GRAVEL
O OB�LDP�B.S�07
rye �.. - • - - - _ _... n `+«,ter sLw�! aA`H 4a Awe flel 4.9087-
r.vvpvwalwnrworwerrlavtaTorpn.a to-__ - -_- --- _ {- e.ri.,ar Fr•>ir!Laa!Mf$eM Venue _ -__ - -- -_ - -- •- _ •
_.. __. __ _ .. -.-_. _ -. ACTUAL VOLUMR= 6,910
, _.. _ ___ .....�.. _._ • _- __-- --__ • --_ -- _- __ MIX CONCRETE,INC- ra urrn ar. yi.Feprwsrni 13r�e..- It D ausa - _N D_ _tl O - -11 a_ Omu _-. limb. ,Heed- O Gell _ .._ ._ avows err wi _ eEa) AbrrMWhee'R• - _ - __ - .._, _. _...... __. .._.._.. _...._. .....- _ emr
Mown ell.as Oro, fora __',I - - -__- - pm e_nb eerev a .
--_ _._ a.,in
ludweiyi fens __._... ._. ill M h�l V.IpeiYCM9. alb knl A MU I II) (rift_ Mai 19 m - .-.. _ y.F7tR5 HICKORY READY we.T r. _._ .__.. _.... _ ----•
FaT1Yt�veAt[geCJNPn® -.-. _ olf _ ..._-
.... :..._. ._ awoda esn tdPewn Dan to .... - .__ Btwiae M _...0 °Islet N O 11 A N q aRNu Elow800 :NW CI Gips__ -__.. c�NTa - . ._ P MIX CONCRETE,EIQC. rn.... 'WIF! oast '6e- tsar
s1.a4a,o.laLE1e1
exam.of ass al DM %KW al•aL l,- ,,; .mx•rwra-?+10tdnwwlxn4orueedww.aA7 !0a200 15_.....9eDOt 11.l9 837 l_9a 48Dt1 0.96 0.00. OAO 0 _._...1790 144100 9A0 096 _-_ OM PM1n.ryBprbay. dOei•�, ...._ y 1w ..r ...-•_._ ._1W.M _ -- 08 06 818 9abaslllool IP Ielel __.-PI--_ LAI_ __ Net _j1- - -_ 14 MJ --- -.- EWES HICKORY'READY
--i .. w;. 111 �°43� gs 319432 1223019 8.00 43.76 100 2425 1m 21101 2!f¢ e013.00 0.00 GALL Lt.Q Wan err W.W. 1 ..__ ..... -.... ...._ .._... _.. ...- .. _ ..__.. ...- -
tar�daaaT ei- ra, m= ire _ ___ • • AUX CONCRETE,INC
- _ -- _- - -. _- ._.... -__ _.. _.-_ ..-._ ._ ....- ...-.._ E^'d9wa•YSP.�T prmal'mfYrLwatlM* ' r�QMMENTS iwr�owe Eon Tapol'MSEbf•�or 0�n_..f.c
rr•- -�y e,.- Ln - rA- • �_ - 101360 9 90,530 125047617 WM 4467 150 M.73 Rae ffiD7g AA 1013150 030 594 7Li7 fr Floe above Spiry Mai Trim area 0-dt A-I. 133 mensal.*-s �rrersawema-FP. �r.Np 1012)0 7-3 38.091 11AP92091 7.00 40_00 0A0 010 0,00 0 ..- 0Ao 104206_..0A0 a00 .... woe PlearySpIlay - MeV.of TOP an. -:i.:"
b1Ar -_.- ___.. __... ._.._._ -_. _._ _-_ --__ -._.._
a1... i1101- Err Ic_A IMf.-_ __- ,-_.WNW - 10 41,675 132653006 9sa a6.59 2.W --_-9614 2.50 sT346 ffi l0N.6o 1S0 30ge q11 repo(owe awes Maa a• ew t+a= vn SD13.00 _ DI _36422 12.tw19 809.4z78 sAD 24% iA0 21621 Z3.82 1049.9g OM 900 2 EmergencySPlwny Daft �a•� aerWA916Pcxa r e6�I�HY�_. :nor._. sal .. - - _ __. mrtro.a tan w
c.A- esra _ __ - -
.,_.. ili ceA- .etas: - t013aO 9 3633E 125a1T8n 6,a0 f191 11A 4a.rs r.50 2a iR9 '28.VA l0aT.90 0.9E 694 Sur tr Hwy Spasm a GA a-- sv...liar l..+a.•s..Iwaeenl+weee.as 1042m 1 7a moat 1t,48a2Wd1 YeD bm 0.00 0.00 8.00 0 Om- iD12e0 ODD 000 COO Ptf
- - .. .. - - rselnelM u�- °'-----'�---- - __ - - AO t67s -' - - - - 3735--- -•- •50 - -... - re. _ i"Oa••.•-t¢l., --- - -- -- _ __ mw1.'>gl!'rral'..
Cee' uK 1044 1p A_ 1.1E4.6te -9A0 48.5E 150 11624 259 37.34E 1DM.50 1 >Om 4e31 Tap of Dan earn cam tb,Nlere 'b•+ 7a b- .Ir aw- a!a 1043ID as 36122 1]y3619 aria-Ain too 2433 LID 23ffi7 2AlQ 7DISb0 600 090 aJ2 Lair W.ant
.._. ...-_ - Aw.- to ... 1araT. /net ([1: 1 Eraegscr BPlnlep
ew.oa- ill CleuMtiom in accordance with NCDW 8tormweter BIB Manual.NCD -- _ u ..._.. _ _ ._ .._.. -_. __. ._. .__ - _ _
._-.. -. -.. �- Q LQ sera®:me M.seas r'•`= Se: Arw- aw r„t __ aw4 r-..-. -- - s.- _•�_. e.i. _ Ia -. ^-. _ - mass Y MAO 120001117 0.50 44-07 1.60 4413 150 same 2893 1043150 lls0 ILIM_ ran IF new atom Spay 0.I. germ Mae
vow_[set _ ai• 131 a --aw- u.r1 ,a Erosion and Sediment Control Manual.A PHU Denga aids provided by Anti-Mote ben Caletdattio0: alum JAM,11!.WM _ ....- -.. _ -_ss35'. __-.-- ( I IMMO • �•' f - 1.. ,A= __ -__ _ _ _ _ __ -_ - •-
a�- sail CRY HCDENR and FHWA Area dM ed b 90'riser and 4" m"�" ' CalcaditMRe in acnordaaom with NCDWQ StarmwaLer Manuel.NL9I,Q .. mar Nfs Y, - w. ._ - A- -._- - ..... 41A76 -_ _., - -___ 250 37,34E 67.35_ 104450 ebb _ION-_
__ 1 Tap ofOWn_ ease w4u
100100lm wows m60-1be _ _OlennowWPM_._., .�; nzwrA Apk1-Seep Collars armelg]lon Volume displaced=5.0 etc 4 H deep=20 cubic[eat - or• ssie w - - .. NCDENR end FRU. -_ - ' - _._. _.-._ .._ ClcuLtlon2s m eeeerdence with NCDWq rSlormwler IMP][anal,NCDLQ sait�eNpyr m,MA
ar. au
aaYf>o rrw e• • 2.5 ]Mw /' 1. .2.Eaz Required net farce is 1.1 x 20 et at 82.4]b per of=lira l6a - Area aced bySer riser end 4" ate valve riser=5.0 feet G --
liree owii-aWlrt• ' Ado e' W ae 3"... 1)Anti Boller should not be plmed closer than 2'to pipe joint 00,0 01 OW AC! fa.y. odr...ya1. o=cq•A,ppye dlwpl � g square -" a,• ism .A q.•�w css ®r-_ asn Iva __. Erosion end ETN_Sediment Control Yenunl.&FH1A Design aids provided by /nut-Flotwi;nts ClculaHoh raala�uasm
en, -amrq o�afe €' °AP ] Weight a1 oonarete 140 Abe per of - -- -- - AMG-Beall Collar Calculation: Volume lac =5.0 id x 4 f[d - - - -
osa. �.- -vie 'Ai xsa'- -- - T. centerline Use buoyant weight of Concrete for net downward torte L4Q-824=78 °1e1N=h"� ° tl1al`4. - •'l'5 � °' 0A Required nHIet force le 11 a 20 l x 824]b�per cubic
to 1973 168 - ors fa I NCDISRR mid FHWA-
ux 4yp 2)L"Pliar ahaNJd be Nightly dowmetraem of embenknsa¢t y Lga g ey wae.eww=ma7,1 mti 11i":60.e g Pr1 3 p WO_ -Dab Even. a=re•4'L4Be Area diep by 30-riser end 4"Sato naive riser =5D imitate feet
^'^•• - - .----,. ...i a• ....,,.,d ,...arw b,erei Abe per of - .. wawa•asa A..- 4017rt FM= cafe __ _ _ -__- _--_ "' 1)Anti seep cellar!Mould not be placed closer then 2'to•pipe joint Weight of concrete 140]bs per cf - __ - - 0.edEiegep CeEM Canyiationi Volume )need-5.0 of%4 et deep=20 cubic feet
eraepwso• xaNNi - ere sells" FEJ a9 2)teller should be slightly downstream of embankment centerline Use buoyant Weight of concrete!or net deemed forte 140 -62.4 - 76 O"" b're." r'a"al-I Wine•30 vas• s- P.M en` - -
man fla k Aw Sid otio io loii �2ade' rii• au s.m Required net torte is 1.1 %20 et x 02.4 lb per of = 1379 Lba
-- ..c ,�_:_.._..__..a•"..,,,,,,a,,,.rlet lwrral Abe per cf A.• omen 0s• 60a -- .. ])Anti seep collar should not be placed plotter than 2'to a pipe joint Weight of concrete 140 Abe per of
---- d.1.P. . = uw4ti - ---- Try 25171a T= .- Ax sire 4°011"should bet slightly downstream of embaaT®ent centerline Dee buoyant weight of concrete for net downward force 140 - 02.4= 79 alyaM ,
_,,..„,,,.., ^a i a .,..,.a ni•tiat berrwt Iles per of .n..+.a,.

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CONSTRUCTION SPECIFICATIONS PRIMARY SPILLWAY DETAIL WET DETENTION CONFIGURATION ON CONSTRUCTION SPECIFICATIONS PRIMARY SPILLWAY DETAIL WET DETENTION CONFIGURATION 4�(.7N CONSTRUCTION SPECIFICATIONS PRIMARY SPILLWAY DETAIL WET DETENTION CONFIGURATION pyC7
�x � ��
1)SITE PREP: Cleary grub.&strip topsoil from der the h.nkmeet. D possible, HG®G®
dame claming the peal Brea until the dam m complete, BteCltpRe la��meoa for me m the .!,••, /� 1)SITE PRILP: Clears grin,�etr4p topsoil from pnder the embavkmmt. If Ponakble, 1y L,
enter rhea m the embankment. Place temporary erosion central a below We -far NA •.1 delay cleazib8 the seal a until the dam m cwapletw $terrlepile topsoil for ves the .gam Ir r 3 N _
Mein as needed. _ •e�.e. outer m n el the embedment. Place temporary eraaon enrol meeaur.e below the J a g'�a 1}ay earin Clem.grub.k strip topsoil from mple under the embmlil for a en the
2)CUT-OFF TkgNLTi:Excavate out-off trench amwg the emtert ee of the MI embankment , --sea .,. _ Deem..: yymMe IV. row W eye Lerde en assess. 1 ,col l.r _ pmµ El pW]y; t oar clearing the Peal area onto the tam in aemplete. 0tel,Stock Lie I the Mr we e....r...:�
L, •"'YYY z7 CST-OPJ1CH:liaeevata cut-oil tnneu aWUB the emteruno of the f!a embanlanevt - ' W w'eheIl m We ambenl®mt Plata 4mPea'a'Y steam control meulsea bale.khe y�e_�
_Eon_ W
bean es eeded, Torso tam
,a@ eawoa.,.... ,u®sae yens
Into Stably son a rmn1mvm depth m 2'and a um width m 2'd:1a side ao➢vas - KC r�1rasMe..., .. - sees_..' .'..•• -- - -
've into noble sou with a minimum depth of 2•and n mmlmum Width m 2'k hi ads elapse_ �.,� °Veal'} ,dv=+.eseb' FC e) et;bl P T1iENCfk bonnets cut-of[trench stony the.,g,.-^+"„•a[the fat 71
s ,mows sae re¢dvem s r revm.o r ,avgpeka M.with minimum a...eua were. �•••vs.. a.a Taws ° ,n _r_ ! sees.. i..e a dam _.dens etnNe roll With a miemum depth d 2'end a mhum m meth o1 2'W I:1 slopes, la'.r r�
a.m..' Tres m.....r cm s
9)&1®ANKIIENT Construct embankment with fat material freed mots,woody vegetation nave..wa.ae.m.......wu rlseym lmr_r•is.•>wa v farrsa,nam tW,ors y+Aa^,�e Tar . --•• FIa-Irons 1 rmwr swan eM r..-v...uwv - - r:ra v.enc p�lgp 'e.
',I S he endXFJt'I'CulimboE embmkmevt vdW fat mameie hoe d roots.woody vegeaion. ss..nr won mess...reau' eamisiawy-ia.aua.em,..ores.... _ II IFII=11 I I II'-II-II II�_�_._ - a,a stow¢ �u°oaf la�•�° �°> v t p m a° va
rocks,and other objectionable material. Place tat in cmtinuuve layers of N to 8"end star nil ion EWew tel0`.'.entear ewe - } - x ��, - ss
reab,end anther ab)ectiavabie matarW. Plane fill m emaeuoue laywx m 8'w R"eed sm... :.w aa 91 AdIBaNNFBNT:Coaairvet embenimen!with fat melenal 1 r�wr a.w T '�
s- Deaviaisw-vaewatpde - soar,r l-Ih111l1 11f11Yi1}I111-11111111l1111g ,� rna act ao that tbeeeelham le mat efleeah leyv la traversed by at ra o 6' wheel/ p"°'��`s $ •-� e'0-�m� Weise -
compact ea that the entire eurfnce m each layer m traversed by ai leest one wheel/ tom„ns
flack m heavy equipment or use a compactor. Cvuatr„ct the emhen�mt IO,S higher to r"�4n 1NF r�-i::,,m. s.. 's.,. !1ro _ track so
equipment or vae0.°e compactor_
Is traversed by at lead ewe wheel/ `e"�'�- J 1 w�� a`m�1�
ahoy for sating. loam tention c troller along to barrel of the ion of
ses vegetated
m 'Tao_ ,. r.avae •v.sw.m+ n9WaMastweaul-¢•- yen• - comdr,mt the embankment ISM higher to es .a...mu., m - rS .11 -fE-yl 11 II -iI-I�I II II Il s1 'X -I�- _ r y �vcwer
prevent pipmd,See rat detention configuration derail for construction m.lopes,veyefa[ed awn m allow for settling, knell annmeep toiler along the bend°f the Primped spinney to $, E w ♦♦.- - Ir-Ir11 11 n n n-lrll... m
In the
Melt Lap of emMemevt,sore cp,,,,.,Ra„ w�o* preventP yeIDsbe detention configuration detail Tar eon.wau<n of elopes.vegetated 8e°"^:. I track or Deasy equipment w use a camPa '�anatrlrat we embedment LOX higher to
w eDow for eetahrg- Ireton entl-seep collar along the barrel of the MIAPV•y to
of
Npiping. . . prevent piping,Dee wet detention wnhgmetlen detail for f slopes,vegetated Mew.
Ogrtgroi Fa.
a)MUM SPILLWAY:Dee votes in the spillway Delell. I 4)PAfaARY SPILLWAY:see antes 10 the Detail. znswranrwis _ ,yo Mel top m rmbaemynt,etc. xseas..eda
I)Et1ER aim. teed
dine Install emer.mey awawey w undmlurbod ease Place filter fabric a mere., znvwm swan memom apilimy _ ®I 4)EMERGENCY
1i SPILLWAY,see notes m the Spillway Detail. stow Term srwe,ru
__ tit6)ILLGyiGENCY SPILLWAY:Ivakell emerge/my spitlWay w uvdiawbed was ]'lone[afar fabric m..,.tw.... m� 6)the
spillway
SPILLWAY:Install emergency anthem in undisturbed doll. Place Nter fabric ��M1
e)required.
lllachaBa Tatar lob t eith pnerebeu n m a roamer to yrov®t evoaon. Use of rareMy p. r.�p.m... the 6 lol000 end tore mth rip rap. ruse......flew - .eraser w.gwn
Is required. .meet axr 8)INLC1 elecharge meter Into the bean m a manna to prevent...anon. llae°f foraheJ .mar ,lp,R r r.me
r)Stabilise
EROSIONemergency
COMM,cy eplilw disturbed Divert ail sot ece water away from bare q .....are O '. - required. a all- � a..Msar in INL ION 01yemd rave with rip rep. mean.
6}1FI81`...Merge water Into the beau Ina to prevent azodan. Tee of foretop
Im wild the ater co y pllhrar,emro®brnett and ell other disturbed areas fur We burly xn a.•Ism rra� r mom 7)E110l to CONTROL.Minimise disturbed Divert mime water away from bare are �Z^ _
Immediately ceee'Mrucam. 4....r_�%..rarm_ -... 0 Ar R. itabtaae ellthe geboolency construction
®behlm°Rieat,and m oWrw dWturbea e.a for the berm sees,�. .e
8)0Ee10Rl4 BANN:1f pond is to be treed es a sediment beam or atimmer basis 1n the _ a+'•'m„^ "��,�,.,`s„I,e �, R.
m lmmodletnlq alter onntructinn ` 'r7 OOFT'It01:Y and I.disturbed Divert surface wear away bare areas mZ w
erosion control worn.frost o -guidelines for the insmlleaon of the porous r .��a r O D�t�tagNT ah-ffi,':a pond is to ba d e aedfinent baria skimmer ba¢In is too avam we ; W Stabilise edia tly emergency uctio sY,embarlmevt,aM aU mew amLurbad u�tha bade �� � �'
battles and.kima.devtee(refer to the baffle and simmer oteooli w0. 1... .a'0` x e eta°content Phase.fotm.mna4uetlm guWemea too the "_,._tlav of the w`r'._rr•'I'!,."'t°as'�w.a .,a vs'�"""' Z immediately aver 0..tn,cttan. .,.ter av
a)Sea end
Follow m.tam rid local requirements to Protect pdatalleieople from the bade vim.r„ s —..+ ...nr..a seen.vr.,= hPsroon w w�W �`...+ ®Y��..�� g)0.5SED nod algal:I[pond le to be a sediment Man skimmer ro - .n the a •w'°'•��e-� W ,eY'a
���a .rr,.w s.rm eroeio and jammer device(rear to the betide and for mar dywliv) �mr % meson centre Phase,tallow construction ymdatmea for the lnaellatiov m tM Porous ua.E�I• ..°...`..m e..,ram"' 0. 0
t W a`..w' .'mom:w.°:i r 'r"` 8)9aJglY.Follow ea Mate and weal requirements to protect People from W e panto_ I `l row .....'....:-..`I+"e"ua.....'"' a. !'' •- rearm ..ram.v.
c� �=ter r r Ira. battles and aklmmer dance(rotor to the baffle end dnmmw&MTh) u,.:r�mt` m�� '�� x
p_=`_��:`�~•w maw re.
r~ a)SAFETY:Follow w state and lend requireenevta t°protect people from the bends. °j„=.W e.es 0.
g..c ��o I I Y, • .,
VEGETATION REQUIREMENTS e,,,, S' _ •. $ i
,� VEGETATION REQUIREMENTS ' ig . % .
Temporary and permanent vegetation ap.ouLcntIone are toned in the erosion central ,� SEAL s VEGETATION REQUIREMENTS a
piton for tam Protect_ Seedifelon"Practice ma met eon a de end Spe a are 1v' e rtIonee le 4, .- : I)TempwmY and permanent ye wilco specifications ere found m the mon.control
E)Wetl hoed Mellsteno n..iel bl emnderds tied Specifications'sestina a.10&a_IL --- ''... L••"Fp Nam for title proect. Seeding and moaned epecrrrontime Sr.In accerdeuce with ,. „ sprojec
e)Wetland vStom a should he en ear on the f0'wida anon and she][be neeordanea NW&NR Land quality rdnaov-Practice Standard.and Spedficatiom"8°oWaw WM&891. -x •- 1)Temporary and monument vegetation specified..ere found iv the erosion contra d
ooPeade
with tl io awtotioo anc Rennet- Ter additional information 6.aye f 60 TYPICAL CROSS-SECTION VIEWS 4j/z�os 2)Wetland vegetation Mould be established an the 10'wlde vegetated ehea m 0070rdanae k,• wane ter vegetation
loamyo Division
'Practice d mmimno ape and Spve are m d shall 10 rth p
urdalleam.end mamtcalnnee d.Noma vegem[len.aaa DectioDs 8.0 k Lz.B, with Ncaxq 8lormwater Nap Gannet ]tor eaditicvei miormatWn on the aelectlm, withthri N[trod or etvidon . or additional
and Sormet on a he shelf
O.lD a 9.Lf. s� e ` r+•
8)Ana doe Lreea and veto large woody shrubs or uld not be pleated on the m1talkalan.and maintenance of method vegetation.Mee%whom wok 12.D. TYPICAL CROSS—SECTION VIEWS , //z/�8 a}*attend vegetation should be eembaebea on the lehrida vegetated shelf ie accorderom
rmbeil 010,v so es not w l.rgr the integrity or the embedment. - y� y' j4'Gh/r 9)FYdM ice trees and very large recap strobe should not be planked on the // with NCDxe stormwatar o', annual. For additSonN SNcryyuoe an the selection, 9tee/a8
ambaram®n ao an not to roles the integrity d the embankment. h installation end mnmt•nmas m ranee vegetation,me Sections 9:D a lava. TYPICAL CROSS—SECTION VIEWS
affec
/r4 r GL �,Pf{yatpf_ in Ana else andIrm anti enan large rtlay a eget aht the rot be tins 0,0 1 the � v„ ����y,�
we..nmm 4 as not to effect the urbanity soIdi m sea do notat
4)Trees end dlmba Mould M set beck so that brauohee do not extendstover the Deem,
s
n)Malting eheuld M used on the elopes to minimise evens daring establishment a 4)trees end Mete should be set heck w that Menthe.do vat ovu aover earn.
gMa sTYPICAL LENGTH VIEW b}Matting onentd be mad on the dopes w M�t..eroaan during establishment ol 7 4)banks end.o m should be Bet beck the
B)Piano m tba vagekaled ohm should M watered twice weakly(If needed)tam the vegetation. TYPICAL LENGTH VIEW 5)Mating Mould M need on the elopes to ndntuoWe erosion during establishment m
planet are established.t 8)Plante oil the vegetated shelf should be watered Mice weekly et needed)until the vegetation.
7)No portion of the wet detention pond should be fertilised*tier me elm!Wad TYPICAL LENGTH VIEW
7)ants are onka thee.
fertihcdd°v that is required to eafeblleh the plants m the vegetated shelf. •1 plantar
No portion of the wet detention pond Mould be fertlNaed after the flra mktiat 8)promo on the vegetated rhea should M waered trice ree1ly(a needed)nets the
e)tfenteln stable ground mover in area donning to the pros m order to minimise ,a.c® f)Maintain
that is roned d to en blisharme the plenty owe ep vegetated in ad shell. rm��� L. Pleven are ethat0 ground r
sediment feed w the Man a pjr 8aedlmmt londw rka Man. ffi arena drafeng W the pond n order La mivmare vl sediment mad w Lhe bade. r m area ag P°vd 1n order t°mlvimise
z o0 z
ebould be f
,v Wdrvvr,.ve swtiwl ` Tj xo portion a[the wet datentan ,dy^,
ta
0
vnr.v.rlm.e ga.srnpr ursenw.farra]awe' _.. ,rr r..r H - ._sees. - H sv„m vaaawmsl,dmpw _ -._. __ _.. ._ .._._ .. 1r C00001 I �'
.. -_._ ... F —t ar rwutwa himecems e+'1 Fa — _. __ sees... G,m19alb.N,evaes sees ''1 E'I .a
_sees ____-__ ___.- sees. _ __ ___ __ __
establish the
l
p�ertrt t„v.�a,�r tom a sees ............ _.��w,. ._ - r _..._...
._—.._ __-------- T'�iunslsrrd"Posl'A eAa.rrs E4 ma+ v v - a-L_--Ishii-11-t-. • O - se arimen w able required
care° dmha�to Lhe ttg sees. ... .. _... -- _._.
_ ,--n_g-It_I_1_I -•----- -t- - _sees. _ sees --rmmT«..aanPad mrx sees_., -- ___
maw
_.•v-. .:_ :_ "ali=lkall=l�-1�11-n n n Ir n h-. n'If-! wd esro+n'PoW -9mn�LalP1l`.�r v 1! u-A=n�1-n-n-T-1i-n=n=,_ • H
_. +, .,-=I-II-II-II=II-Il-11-11-11-II-II-II-II II !I-.a., - =11-1f- - -- .. I II II II I ll II 11-II-II-II-II-II-r n.,
............ • itia.n .._ sees raagvwnaevrmcbwsa nos v - ,• II-11=II-II-II-II-II-II-II-]I-II-II-II t _, -II-11-,- tic e.:rt nrcrs.,n.:w.em sgvaknt�-._v. t
- - -- -" „ - -- _:_ = 1=nn1 =n=u-a=n=a. -t=,=,=n>.. ,o�^^ Ten«t.manWeaatta.es _, ! l=g=a7 1174_u-ni=n-11-01r-n 111.a-lwt._ I
=11-,-11-11 ___ _ - i II-II-VI II Ile II.11 11 „ 11 11-f1-d-11-h-LI-1=D=1-!-_ r• IIII - ___ --set-Il-.kI-II11 1-1 II IE II 11 II___---e____ ____ [ '�E
imieltell 1-11-11-f1-o-:. 11=11=II-Il-II-t- „_I_!_n 11 -11 Ir11=II-11=11 11=11=11=11=11=If--11=11=II-II=11--, •
�w =11=1�11=11.-i1-1-1=-, -EI'1=11-11-1f-e- 1111 Il ell-II 11.1�=11.11 II II II-II IV fl II•II II II II II 3! - `+ =11=11=11=11=11-II-1=t r -1f-II-.II-11-11=1I- ,=11-11�1=11=11-II- 1=11=11=11=11=1i=11-II-II-II-II-11-11-11=11-.1=n- v'+ V
___________ ===1I_Ibll-rl_II-._ r'________________________ N r.! "fl__=__=1__I_Ir_.r�, .,i_n_II_II-II-lI-11-11-..., II
n Il II 11 fl II II 11.a.I I.,z, rc n I! _- II II 11 II li II {I II Il II II II 31 II II II.11 II II.I I..II IE II.I I t h_ II fl II II II II II zc 11=31-a =11=11=11-p-a..,1r-I:n 11-. x. z, n II If-II-II-II-EI-_tic _-_._ _._ _..__._a:-II-11=11-II-.II-II-11=il-1FII_11=11=lI�!_It..l_I,I_I-II-II-lI-II-II it=11=,-.
________ _ •_ ewwaq _...____ __ '� e,x,gaIX:,-, ::.�•p _ sees. - i I I !r _
�.I -_ ____ �r.ah = -__ sees... _.._ add:aP.arertPoa IDeC -
_I I li Ik II tl.II M Ik II II 11 II li II li II It se es_.— ,. _.: n_._ , 3! I I I! 3I I! ! 1 -ll-ll-i-II-11-11-It-11II [I-II-II-11-I I IV•._ W sees - - _II I"11'._ II II 11=1 ,. „ 11 II II II I 1 ! ltl ,
1�1 11 II I _n-1-n--I-II-II- !- ,1-11-II-11"-.=__�.-:oea�e,.,..�.._.— .._ ...:�+.!+h�3 x1'b-:_ sees. °w(��ew�11[ � III II a I I -_ ienS6o.-Fau6i,m 1�g n I alp.° �w _ - � f��i [�I II g II,II,II,IWII,-Ili lry- .�n.ra -11=n=11=11-I1-h1{II�11�� .F,.�. ¢trw"vw!e°'°ar,m" _ _ _._:._- _•.��.a r■ � � [� 1�111.,11,11,111,11[,11„11„1111,1u„- -gi,�1 ,1 s- -�c-.�---.� eu _. •.. �j � A
II-II-iI II II I =1-t-1- ! '[eryY7 vgryeVl
MAINTENANCE SPECIFICATIONS —�°a—`� I MAINTENANCE SPECIFICATIONS on --n H MAINTENANCE SPECIFICATIONS -- - 0-•-� x
L)As required.an Operation and kotnkenance Agreement should be entered into with sa�'.` a
appropriate regulatory authority. rl N • a q .k . a
O
O O
z x
El
into wikh r' o he eeluad kntc with
2)Minot®ence records for the wet detention will be kept m•tog by the owner, pp a t)All required,an aparett®sod Yefntemnoe,tpeemt should be entered- a ors{ �l, ])Ae ryquirad m Opmeane and aatntmevoe Agre.vant a4 old
6)The wet demntim,bade shah be impeded once a month and within e4 home after TYPICAL WIDTH VIEW 0 H I- x a preprlere reg°mtary mfor they.
every storm event greater then I". Impaction records Mall be kept and made available 2)aemtanence records 1m the wet QslenWo oral M kept ta a ing b1 the axaer 0 1� . a)Yefntenanprlate�elere ordary aut authhe ority.
datenuen MU M kept w a log by the owner- z
UW w ,yl 2)Iron wet detention beano anew be :_-..d once a month and rtmn 24 home alter TYPICAL WIDTH VIEW N p! s)The en detention beds thew et eteetiaa once.month i and apt s e boron 0110 TYPICAL WIDTH VIEW w pq ;
•
p4 toeary them stout greats than 1", ka}cam scoria ohm M kept and mode eve able event Lei than 1•. Inspection records.MI a kept and made,allnble El
to• the regulatory authority. �Fy{ the regulatory authority. E'i w me Megulnwen authority V U L.� E
a)Fedtment should M removed from the keeling and main pool when it reeehes a depth L. U cLe 4)Sediment aheuld M removed from iha Toreeay sod mein pool when tk reaches a dap* F FUj `fit 4)Sediment should be removed/rem the tarebey end main pool when it reeve.a depth h 1y ta• ,E
b)Regularly remove trash and debris Lo minimise the stele m clogging in the outlet sour ewsls yen. g�l.: �j H LO, S)Regularly remove trash end debrm to mhlimtse the rank of clogging tv me outlet . coo F.g H ^a0 5)Regularly remove trash and dents to minimise the risk of clogging m the sonnet arw enema rm. L6g ~ O
etruetursa,trash rocks.regularly owl.,etc. l " (f e4actures.trash ranks.3MYdom°rlface,eta, as C) of 1'.urra,trail soaks,dr Aewv orifa<e,ewe a! g
e)Inspect embanment regularly and vets any dalteanelae and make any eewaeery O f4 e)Inspect rmbankmeat regularly cod note en7 deflatmdm and make enY veeaeaary 0 El 0 E-1
7)Routinely cheek era down time d the temporary pool. Required drardom time of thec. d)fended y Mee era time m the ant rary pooi_ end rd drewdown timed the rrwimvyeramos nor,
tmnporboe pool c between 2 w 6 dap. lewavv.amm emfnel ❑ T)00011vely Cbeok daa.do.v time of the temporary pool. Roqubed mwwdom time of the lawn vasaamam Onl ❑ T Rmtboery k drewdam temporary pool- Rogthcod -
v, sees. ,n p:r won ` temporary pool is between 2 to d dap. temporary
D)II draiwvy the bean m neeauery,nothing m esdwnent Ehtenyh the pond drew should 1111l-e IwvfParsls.eeg,rows... .._.. ___ _ _ pool W betweenooI.8 So 5 da - z — ... see s —-
d '.___,rg through the Prod dr' should I ='zs srpye.a .irpnoam„trrawa,oatr
.m a. ❑ 8] �eiviv8 me beau is necessary.fleshing m sediment through the pond drain ennuis IrU , osd Pastw+aai.10.45-..
s:_ t -II I! III If i! !- -1 -1k1i1 _ _ 1.Y. I-Ilan II II-II-4--
8) EfIC
a the base is neceesrry,flueblvg __!_I al-1r,. a._ _ eam„ou' v __ ..
to the maximum extent -=3-11 r_'nne3-3,3l - a! more rev ad'_ v n II--11--.1-n--_11=1=! dr`k°m8 am II II-II- v n row T v 5pi
M m.mm�eadpractical n=n=lpu-n-n-11.n-,i_n___ rapa wawrn --Nawlhol sees.. n-n-1l-1 Ir-I 1 �=oats,_. o minimised w the marimam extent p,acbeeL I!-a=11-n 1 ... _ -roper`�w,w,ax-�"'Aewu�+rar"�,taellem.,aa7 .-a-1 1 1=1H a_I_1�• - M mmimirea w Ina m.amnm eatmt prenrycel. 1�=n-rrl=li-.-t-It Lin-n-. --r d:,p,wa�"r1%,,,,,.a�.,aro fa,r - r l=,=u=n-o-ll-n-n-11- _ ^
i[=11=il-II-11=aII ____ __ NLL a -11-11=1i=H=...-..� _ _ __ _ H _d-I�11-II-11-if=Il-lI-II-11-11-,I`.. ____ __ _ H=11=II-II-I_ _eat_II_!i_II-'!III -1_II-II-Vps_. y., -II=! ,, _ _
-.�I-II I -II ! -II-I 1-11=11-11-h_,. -. -o-1-Il-il-Ikii-ll-Itll-11=11=Ik11=11-11-.. -
t d b a dam rota -- sot be inspected a dam aafeL - - -- beekrnenL be arose b edam satet - ----- t v
that once n year the embankment be- 1 1 .__-w=__=_____, r r.oleeeerwaPvtparrme.,tistr ended that once a ar the rmheelm. p by p - - __..-. s
n. .. .. __________ _______ . Tcotll.msaxs •
MNCs,nko lalB' v. , - - k 1m recommended that once a Lhe mq msP J y
9 IL Se recommended y impacted .II_il II N II I! 11 II II II II II II v a a is xewmm p 11-[-11=11.di-1=11=IE-iI=II-!�I_II-,: _____ q - - -- (Q w 1 east :IIro1I.d1=11=11=11=11-.IFs_ll-II-II-II-. TorHPs.alre,lawlrknf.D%_ _ --- -- =11-11-11-f1-11-II-u-). i�
- -a-i{-II-II-II-II-II-II-11-It-Ikfl-II-11 I. i-11-II-k_. ) _1_____- -u-II-N-II-n= n-IKI n-n 1--- - ) --Il=n-n-.n-1 1-! I -
-- ----- 111=nn-.. --- -- II-II-fI-II-a-,:=.::-. � --- -- 1=11=11=11=II�E=.II=n� - -a Ill11=IE-a-II-II-II-II-II-II-II-II I --- - - -a allc. L/[+yyg -.li�-If-Il-ill-11-II-II-1-1 --- -- -- -�I�I.I EI�I I�t ll�i l3.-.11=1I'-.. (wyy -Il-li-I�11-II-iI-II I I - ------- -v��ll�l Ilw{I=1PII=1i=11=11=11-It-:_ /(�y/
I _III€1�11-11=11=II-11-II-11=II=r>=ilal-II�1=g-1 I EI-II II u - al�Ylllll-II=1I=Ii-II-II�I�I-II�1 i I-III f I ^W -d=ll=llN-II-II-II-1. Il��li-11 11
art - _______ __ _ ___________ __ ____ ----asp ---- - �u-AII-II-11w11,-IIyh11_,. mart. -- _u-II-II-11-11-11_a-N-u-II-1=11=e -- - ----= expert - -nil_II- IV-,l-II-11_ndp11=11-Ir-11-11-u f_-------- - - -__--
,DII-II-fl-11=11-II-11II _ _, r. s.,________ __ _II-1=1CI1-II-11��-II-II-II-II-II-a .. I-II-11=11 I-1=1t ___1, ________ I-lI-11- IP11 I-II I-i1-11-II-II-II a-.. I dKll 1 I-g
_________________ __ cons Ii II II II iI II.II I II II II. I i
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CONVERSION OF SEDIMENT - Win _
CONVERSION OF SEDIMENT CONVERSION OF SEDIMENT
BASIN TO WET DETENTION
KFR R's FSlrcxoRY REAOY BASIN TO WET DETENTION • KaRR's x)cxoxY READY I
BASIN TO WET DETENTION -
)t13RR5IiICKORYREADY
1)•raE War➢htbdl1Uh BASIN FOR THIS PROJECT TILL BE❑SEa AS THE SIGa1ER Sf1114ENT MIX CONCRETE,INC. vilil wetBASIN HARING THE alIN CLEARING AND GRADING OT INIS PROJECT. PROCESS WATER CONTAINMENT DETAIL Ig 11URIIIc SITE WAITING AND cR005111 OF THE PIKdELT s���M
PROCESS WATER CaMI'A1MIi�aY DETAIL I Ii)u.ffiL DURING ME sea L'lE6RaLCANB GRADING OP'A�4rwe tell DETENTION BASIN FOR TEM PROJECT WILL�pRG,16LS USED As Tim D1ILGmt a®)VS1rr INC.
2) r miming of the wet detention she])he constructed during ttr Bros®central pharcthe
h order m eritoientiu fiowtote Grover.. 1•11 the slimmer bean to the we[detention .� 2)Fuil to 11 Tel wet llilniav sere M from
the sd done the Mo the
control Phase _ ®.,sees
once PROCESS IPATER CONTAINIONT DETAIL
the site m embJlaed- - - hsTII afar s4 woe In order[o eab'krnLL•[anititato conversion hoar the Wmmer beds to the wet detention
3)At time m covatructian maws akAwmer en dewatrriay deice during the steam rem sees scars NOT en testa once the ilk m awhiOtlol r.av von �� m T•,a m)Putt Maim m the Wet detention ohm be tensfrsctad daring the erosion control plasm .a¢m xva �n
a''m_v order toell -iota convention from the eltlmmer balm W tee Tel detention
emlrel phase by etlaohmg It to the futon pool dram rome. on resat ao)onee the site v d. s
4)All sediment durlee mnatruolsm must be removed DM,the rorebay end main pool S)At time of construction irntlR slimmer ea tie ratermg device during the erosion m Its M.gem a All ! atabot ooea therorebey and pool Be -
hofolo the been is ta be operated as me eel detention(ties wow evert sles.ut env.sou' plmlatz RAW hetre abase by attob It to the future pond dinhe pipe.
6)Erosion c teeter®moot be repotted prlar to the oonveraon .or�s� L �� _isle" sees. 8)MIErvabn control features mat be repaired prior the conversion.y end mein pool �`_'- ae, - the caeverewu _-, -sees.
L 9 At time of ovvetruetion.mstell skimmer es desiderata device during the erosion wet fe gCya
ak
d
\ Nye trot phase by attaching a w the future pond drain pipe, IN.1
a)the Remove
vegetated im1l most ra rasa nod Paw to the aalvaeaion. --___-_ �mms aYelmu 6)The
the Mans to be operated re as d Wet o the av BLP. .. '_ - \ ��
Tsar - Tree y�� _ ) sedlmm dvrirlg construction mat M removed fromoss mar
•
T)Remove the Skimmer eooeretw and those the gate viva to make the wok detention 44" sees ..... .Awe m woe )the vayotstad spef[moat oil restored prior M tiro o toe to , r a�.. v:. r before tare been Is w he opmateb o the sat derma t ]ao, .. m
operational,t eaprim the pool!e d r the permanent level- wr rtn 7)Remove the slimmer appmatvs end clone the gate valve to melee the wet detention e4 gib.* h)Meehan control features moat M repaired prior m the oovrardon 6W'` Rewa�
DJ Emma e oeltnery whinny and do the a eri/taco on e the rlaer pipe is fully functional a r .-_ "- operational,allowing the ioral to Cilt to the permanent tenet. `~ - - .ace b)Re ve the ehm must ra restored prior to -
somas. vr! - aa4tVf l4 ease
prior to the
the Wet da[antton into operation D)Baelrre the primary spillway and dred.m mitlace an the riser pipe is fully functional �- 1- 'fY Remove ththe
ddmmer epperatan and clime the Gate nave to make the wet detention ep ~
- .r --_ .I sr _.. _ Prior to placing the wet detention Into operation. -- - se `- - -ur 1 - _^ prior tloapi.mowing the pad to l ND to op permanent level. . - .`. .. _ - "
II-_ _fl 8)Insure the primary eplllway end arewdowv orslmce on the deer pipe is talky funcgan. _- I w
•
prbu w luasing the reL detention row opereaan. .�NII II4.— —ill
,e..du wet ' . ammo laar• oo...c ..