NCG070174_Regional Office Historical File Pre 2018

M,
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
Environmental
Quality
r
July 7, 2016
Mr. Jon Field, Plant Manager
Concrete Pipe & Precast, LLC - Oakboro
P.O. Box 119
Oakboro, NC 28129
Subject: Multimedia Compliance Inspection
Concrete Pipe & Precast, LLC - Oakboro
Stanly .County
Dear Mr. Field:
Department of Environment Quality staff from the Mooresville Regional Office conducted a multimedia
compliance inspection of Concrete Pipe & Precast, LLC - Oakboro facility on May 17, 2016 for permits
and programs administered by the following Divisions:
Division of Air Quali Division of Energy, Mineral and Land 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 are detailed in the attached air and stormwater
reports. If you have any questions regarding this multimedia inspection-, please contact Ms. Donna Cook,
Division of Air Quality, at [phone].
Enclosure:
Air Quality Inspection Report
Stormwater Inspection Report
c: DAQ MRO Files
DEMLR MRO Files
aD1 IRO�F�&ejp
DWM MRO Files
G:\AQ\Shared\WPDATA\COUNTIES\STANLY\00042\GEN LET_20160.709_MULTIIYMDIA.docx
a
State of North Carolina I Environmental Quality I Mooresville Regional Office
Mooresville -Regional Office.-I_.610.E. Center.Ave Suite 301_1 Mooresville, NC 28117-- - - - - - --
704-663-1699 T 1 704-663-6040 F

NORTH CAROLINA DIVISION OF
Mooresville Regional Office
AIR QUALIFY
Concrete Pipe &Precast, LLC - Oakboro
Inspection Report
NC Facility ID 8400042
Date: 05/17/2016
County/FIPS: Stanly/167
Facility Data
Permit Data
Concrete Pipe & Precast; LLC - Oakboro
Permit 05763 / R14
20047 Silver Road
Issued 12/3/2014.
Oakboro, NC 28129
Expires 11/30/2022
Lat: 35d 13.4530m Long: 80d 20.2580m
Classification Small
SIC: 3272 / Concrete Products, Nec
Permit Status Active
NAILS: 327332 / Concrete Pipe Manufacturing
Current Permit Application(s) None
Program Applicability
'
Contact Data
Facility Contact
Authorized Contact
Technical Contact
S�
Jon Field
John Blankenship
John Blankenship
Plant Manager
Operations Manager
Operations Manager
[phone]
[phone]
(804) 798=6068
Comments:.
Compliance Data
Inspection Date 05/17/2016
Inspector's Name Donna
Inspector's Signature: Donna Cook ,
Cook
Operating Status Operating
Compliance Code Compliance - inspection
Date of Signature:
Action Code FCE _
On -Site Inspection Result Compliance
Total Actual emissions in TONS/YEAR:
TSP.
'SO2
NOX
VOC
CO
PM10
x HAP
2013
0.2800
-=-
0.0100
1.67.
.0.0100
0:1200
-
2008
7.90
---
0.0200
'0.3900
0.0100
2.00
---
Five Year Violation history: None
* Highest HAP Emitted (inpounds)
Date Letter Type. Rule Violated
Violation Resolution Date
Performed Stack Tests since last FCE: None .
Date Test Results Test Method(s)
Sources) Tested

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016
Page 2 .
Type Action: X Full Compliance _ Partial Compliance _ Complaint Other:
Evaluation Evaluation/Reinspection Investigation
Data Tracking: X Date submitted for initial review 05/30/2016 V/
_ IBEAM Inspection, list date inspected
— MEAM Inspection, list date draft is submitted
— IBEAM Inspection, pollutants/programs checked
IBEAM WARNING,FOD, NOV, NRE
X IBEAM Document
X IBEAM LAT/LONG, Facility Locked
X IBEAM LAT/LONG, Coordinates checked .
_ IBEAM Complaint
X IBEAM Pg, Next Inspection Date
06/01/2018
Directions:. Mooresville Regional Office to Oakboro via Highway 3 South; turn right on Odell School
Road; -turn left on Poplar Tent Road; turn right on Highway 601/29 (referred to as Concord Parkway);
turn left on Highway 601 Bypass (Warren. C. Coleman Boulevard) toward Monroe; turn left on Highway
200 South toward Locust; turn left on Highway 24/27 East traveling toward Albemarle for 4 miles; turn
right on Highway 205 South traveling toward Oakboro; approximately 3.2 miles turn right off North
Main Street in the city limits of Oakboro onto West 81 Street then this road changes its name to Silver
Road. Concrete Pipe & Precast, LLC - Oakboro is located %2 mile on the right at the address of 20047
Silver Road.
Safety Eauibment. Hart hat, safety vest, steel -toed shoes, safety glasses and ear protection.
Safety Issues: No safety issues were noted by me during the inspection.
Lat/Long: 'A review of the facility's coordinates on Goggle Maps indicates the facility latitude and
longitude coordinates are accurate. No changes to the latitude and longitude coordinates of this facility in
IBEAM are needed. Latitude and longitude coordinates of this facility are locked in ]BEAM.
Email Contacts: The emails for the authorized; facility, invoice and technical contacts were verified by
Mr. Jon Field, plant manager. No changes to the email addresses in IBEAM are needed.
1. The purpose of this site visit was to conduct a multimedia inspection for air and water quality.
This -facility manufactures concrete pipes and fared ends. -This company operates this facility .
from 0.3.0, a.m. to 3:00 p.m., 5 days per week, 50 weeks per year. Mr. Jon Field, plant manager,
accgmpanied me during this inspection. Mr. Field stated that steel cages for the support of the
concrete pipes are constructed at Plant Nos. 1 and 2; mixing and pouring of concrete is conducted.
in Plants Nos. 1 and 2; and truck mix concrete batch plant is conducted at Plant No. 3.
2: Facility Contact Information:
During the inspection I verified the facility contact information in IBEAM with Mr. Field. No
changes are needed in IBEAM.
3. Compliance history file review:
No problems have been noted in the last five years by DAQ, prior to this inspection. The current
compliance status is discussed in the following sections

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016
Page 3
4. Observations of permitted air emission sources and control devices:
Emission Emission Source Control Control System j
Source ]ID Description System H) Description
central mix concrete batch plant (15 cubic yards. per hour maximum capacity) Plant No. 2
ES-1M, ES-
weigh hopper (ID No. ES-
CD-2
cartridge filter (25 square feet of filter*
1 WH
1 WH, 4.23 tons per hour
area)
maximum process rate)
central mixer (ID No. ES-1M,
30.2 tons per hour maximum
Process rate)
From stock piles, a front end loader is used to place the regular sand, manufactured sand and gravel
(referred to as rock or aggregate) in a hopper and conveyed to three open storage bins (two for sand and
one for gravel). From the storage bins, the sands and gravel are weighed on a scale underneath the bins.
The sands and gravel are dropped from the clamshell gates onto a conveyor and then gravity dropped into
the central mixer (ID No. ES- 1M). Flyash and cement are, screw augered from the storage silos (ID Nos.
. ES-2 and ES-8), weighed in. the weigh hopper.(ID No. ES-1 WM and then mixed in with the sands,
gravel, water and admixture (plasticizer). After the mixing process, the concrete mixture is conveyed
from underneath the, mixer to the hopper of the molding machine. From this hopper, the concrete mixture
is dropped -to. a feeder belt located inside Plant 2 and then into the PH 24 pipe machine (referred to as a
Packerhead; sizes are 12, 15, 18 and 24) to form the pipe.
Cartridge filter (ID No. CD-2) is used to capture any particulate matter emissions from the central mixer
(ID No. ES-1M) and weigh hopper (IDNo. ES-1 WH).
Observed: Weigh hopper (ID No. ES-1wmTJ and central mixer OD No. ES-1M) were not in operation
during the inspection. Cartridge filter (ID No. CD-2) was not in operation. Plant No. 2 was not in
operation during the inspection.
ES-2 flyash silo (23.5 tons maxunum , CD-1 bagfilter (170 square feet of filter area),
icapacity)
Flyash is pneumatically blown from the tanker truck into storage silo. (ID No. ES-2 or gray silo referred to.
by this company as F2). Shaker type bagfilter (ID No. CD-1) is used to capture any particulate matter
emissions from the -loading of flyash into the silo. The bagfilter is located on top of the flyash storage
silo. Any particulate matter emission collected, inthe bottom of the bagfilter are gravity, fed into the
flyash storage silo. Flyash is screw augered from the storage silo to the weigh hopper (ID, No. ES-1 WH)
and then into the central mixer; (ID. No. ES-1M).
Observed: No tanker truck loading of flyash into: the storage silo (II? No. ES-2) was being conducted
during the inspection. Shaker type bagfilter (ID No. CD-1) was not in operation during the inspection.
Plant No. 2 was not in operation during the inspection.
ES-8 cement silo (86 tons maximum CD-7 cartridge. filter (264 square feet of filter
capacity)
area)
.........___... ..._..._.._._._
Cement is pneumatically blown from the tanker truck into storage silo (ID No. ES-8 or white silo referred:
to by this company as C2). Pulse jet type cartridge filter (ID No. CD-7) is used to capture any particulate j
matter emissions from the loading of cement into the silo. The cartridge filter is located on top of the
cement storage silo. Any particulate matter emission. collected in the bottom of the cartridge filter are

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016
Page 4
_.____....... _.... ...... ___..._.._.___._._______.___..__._.___
gravity fed into the cement storage silo. Cement is screw augered from the storage silo to the weigh
hopper (ID No. ES-1 WH) and then into the central mixer (IDNo. ES-1M).
Observed: No tanker truck loading of cement into the storage. silo (ID No. ES-8) was, being conducted
during the inspection. Pulse jet type cartridge filter (ID No. CD-7) was not in operation during the
inspection. Plant No 2 was not in operation.
central mix concrete batch plant (241 cubic yards per hour maximum capacity) Plant No.1
ES-2M, ES-
weigh hopper (ID No. ES-
CD-4
cartridge filter (25 square feet of filter
2WH
2WH, 6.77 tons per hour
area)
maximum process rate)
central mixer (ID No. ES-2M,.
46.3 tons per hour maximum
process rate)
From stockpiles, a'front end loader is used to place the regular sand, manufactured sand and gravel
(referred to as rock or aggregate) in a hopper and conveyed to three open storage bins (two for sand and
one for gravel).. From the storage bins, the sands and gravel are weighed on a scale underneath the bins. I
The sands and gravel are dropped from the, clamshell gates. onto a conveyor and then gravity dropped into
the central mixer (IDNo. ES-2M). Flyash and cement are screw augered from the storage silos (ID Nos.
ES-4 and ES_10), weighed in the weigh hopper,(ID No. ES-2WH) and then mixed in with the sands,
gravel, water and admixture (plasticizer). After the mixing process, the concrete mixture is conveyed
from underneath the mixer to the hopper of the molding machine. From this hopper, the concrete mixture
is dropped to a feeder belt located inside Plant 1 and then into the PH 60 .pipe machine (referred to as a
Packerliead; sizes are 24-30, 36, 42, 48, 54 and 60) to form the. pipe.
Cartridge filter (ID No. CD-4) is used to capture any particulate matter emissions from the central mixer
(ID No. ES-2M) and weigh hopper (II? No. ES72WH).
Observed: Weigh hopper (ID No. ES-2WH) and central mixer (ID No-. ES-2M) were not in
_operation
during the inspection:. Cartridge filter (ID. No. CD-4).was not in operation. Plant No. 1-was not in
operation during the inspection.
ES-4 flyash silo (43 tons maximum CD-3 bagfilter (170 square feet of filter area)
capacity)
Flyash is pneumatically blown from the tanker truck into storage silo (ID No. ES-4 or yellow silo referred
to by this company as F1). Shaker type bagfilter (TDNo. CD-3) is used to :capture any `particulate matter
emissions from the loading of flyash into the silo. The bagfilter is. located on top of the flyash storage
silo. Any particulate matter emission collected in the bottom of the bagfilter are gravity fed into the
flyash storage silo. Flyash is screw. augered from the storage silo to the weigh hopper (ID No. ES-2WH)
and then into the central mixer (ID No. ES-2M).
Observed: No tanker truck_ loading of flyash into the.storage silo. (ID No. ES-4) was being conducted
during the inspection. Shaker type bagfilter (ID No. CD-3). was not in operation during the inspection.
Plant No.1 was not in operation during the inspection.
PES-10 .
cement silo (86 tons maximum
CD-9
cartridge filter (264 square feet.of filter
.. ___.-
capacity)
.. ... _...
Cement is pneumatically blown from the tanker truck into storage silo (ID No. ES-10 or white silo
referred to by this company as Cl). Pulse jet type cartridge filter (ID No. CD-9) is used to capture any

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016
Page 5
particulate matter emissions from the loading of cement into the silo. The cartridge filter is located on top 1
of the cement storage silo. Any particulate matter emission collected in the bottom of the cartridge filter
are gravity fed into the cement storage silo.
Cement is screw augered from the. storage silo to the weigh hopper (D No. ES-2 WM and then into the '
central mixer (D No. ES-2M).
Observed: No tanker truck loading of cement into the storage silo (ID No. ES-10) was being conducted
during the. inspection. Pulse jet type cartridge filter (D No. CD-9) was not in operation during the
inspection. Plant No. 1 was not in operation. I
truck mix, concrete batch plant (50 cubic yards per hour maximum capacity) Plant No. 3
ES-6 cement silo (36 tons maximum CD-5 bagfilter (170 square feet of filter area)
capacity)
. '.... .
Cement is pneumatically blown from the tanker truck into storage.silo (ID No. ES-6 or white silo with
rusty trim). Shaker type bagfilter (D No. CD75) is used to capture any particulate matter emissions from
the.loading of.cement into the silo. The bagfilter is located on top of the cement storage silo. Any 3
particulate matter emission collected in the bottom of the bagfilter are gravity fed into the cement storage
silo.
Observed: No tanker truck loading of flyash into the storage silo (D No. ES-6) was being conducted;
during the inspection. Shaker type bagfilter. (D No. CD-5) was not in operation during the inspection.
Plant No.3 was not in operation during the ms ectiori.
ES-3 WH weigh hopper... N/A N/A
Cement is gravity fed from the storage silo into the weigh hopper (ID No. ES-3 WH) and then gravity
dropped into the mixer truck (D No. ES-11; referred toas the truck loadout).
Observed: Weigh hopper was not in operation during the inspection. Plant No. 3 was not in operation
during the inspection.
ES-11 Aruck loadout N/A' N/A
From the stock piles, a front end loader is used to
place the regular sand and gravel (referred to as rock or
aggregate) into two openstoragebins (one for sand and -one for gravel). Sand and gravel are gravity fed
below into the aggregate weigh scale. After being weighed, the sand and gravel are dropped from
clamshell gates onto a belt conveyor, From the belt conveyor; the sand and gravel are gravity dropped
through a rubber chute into,a mixer.truck. Admixture (plasticizer) and water are also added to sand, A
gravel and cement in the mixer truck to.produce the concrete. mixture.
Observed: The truck mix concrete batch at Plant No. 3 (referred to as wet cast) was not in operation I
during the inspection:
5. 'Observations ofinsianificant air emission sources and control devices listed on the current permit:
lnsignificant)Exempt Activities
Source Exemption Source of. Source of Title I
y^— Regulation �TAPs? V Pollutants? .
I=AST 1 -diesel oil storage tank (1000
gallon rcapacity) Change description to 2Q .0102 (c)(1)(D)(i) Yes Yes

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016,
Page 6
1diesel. fuel
Diesel fuel is used for the front end loaders and other diesel -fired vehicles at this facility. -
Diesel fuel is stored in'a double lined 1,000 gallon tank.
Observed: Diesel fuel tank was in use during the inspection. j
I-AST-2 — used oil storage tank (500
gallon capacity)..
2Q .0102 (c)(1)(D)(i)
....
Yes
Yes
Used oil from various vehicles is stored in a single lined 500 gallon tank at this facility. This i
tank has a containment wall around it.
Observed: Used oil tank is utilized by this facility.
I-AST-10 -propane storage tank (1000
c 1 z No Yes.
gallon capacity)..:......< _:... _ ..... 2Q,0102 O( )�)( )
Propane is the fuel source for the steam generator (ID No. I-GEN-1). The propane is stored in a
1,000 gallon tank. j
Observed: Propane tank was in used during the inspection.
I FOI -form oil application 2Q .0102 (c)(2)(D)(i) No Yes j
Paint brushes are used by the employees to apply.the form. oil on the rings of the pallets at
Plants Nos.1 and 2 and the forms (fared ends) at Plant No. 3 to keep the concrete from sticking
to them. 1
Observed: During the inspection, I observed employees applying form oil to the rings of
pallets at Plants Nos. 1 and 2. Form oil applications by employees were not observed at Plant y
No'. 3.
I-GEN-1 - propane -fired steam generator
0102 (c)(2)(B)(ii) .
F
No
Yes
(0.65 million BTU per hour rated capacity)
:�
Propane -fired generator provides steam for curing the concrete pipes in one room at Plant No. 1
and one room at Plant No. 2. The generator operates one hour in the summer and three hours in
the winter.
Observed: Propane -fired steam generator was not in operation during the inspection: No pipe .
was being curing in the two rooms at Plant Nos. 1 and 2 during the ins ection.
6. Observations of air emission sources and -control devices not listed on the current hermit:
a. Admixture (plasticizer) is added to the cement, water, regular and manufactured sand and
gravel (referred to as rock or aggregate) tc form tthe'concrete at Plant No. 3. The admixture
is stored in plastic tank. Concrete admixture is exempt per 15A NCAC 2Q .0102
(c)(1)(L)(x). Concrete admixture is not to be listed in the insignificantlexempt activities per
DAQ policy.
b. The propane is used as a fuel .source for a heater on the clarnshell gates of the sand and
gravel bins. Propane is stored in a 120 gallon bottle underneath the sand and gravel bins
at Plant No. 1. Propane is also used to a heater in -'the shop and office area at this facility.
The size of the propane tank at the shop is unknown. The propane bottle for the office

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016
Page 7
area is 1,000 gallons. The propane tanks are exempt per 15A NCAC 2Q .0102
(c)(1)(D)(i)•
G. This company has nine conveyors belts and three aggregate storage bins at this facility.
Two conveyor belts are used to transport the regular and manufactured sand and gravel
at'Plant No. 1. Two conveyor belts are used to transport the regular and manufactured
sand and, gravel at Plant No. 2. One conveyor belt is used to transport the regular and
manufactured sand and gravel at Plant No. 3. One conveyor belt is used transport the
wet concrete 'mixture from ,the mixer to the hopper of the molding machine at Plant No.
1. One conveyor belt is, used transport the wet concrete mixture from the mixer to the
hopper of the molding machine at Plant No. 2.. One feeder conveyor belt is used 'to
transport the wet concrete mixture from -the .into the PH 60 pipe machine (referred to as a
Packerhead; sizes are 24-30, 36, 42, .48, 54 and .60) to form the ,pipe. One feeder
"conveyor belt is used to transport the wet concrete' mixture from the into the PH 24 pipe
machine (referred to as a Packerhead; sizes are 12, 15, 18 and 24) to form the pipe.. The
nine belt conveyors and three aggregate storage bins are exempt per 15A NCAC 2Q
.0102 (c)(2)(E)(i). The description of aggregate storage and transfer should be added to
the. insignificant/exempt list to account for these sources during the next permit revision.
7. Compliance with specific permit conditions and limitations:
a. Condition A. 2. Permit Renewal and Emission Inventory Requirement states that at
least 90 days prior to the expiration date of this permit, the permittee shall request permit
renewal by letter with AA application form and submit the air pollution emission
inventory report with certification sheet for 2021 calendar year to MRO. DAQ.
Observed. The. permit was issued on December 3, 2014 and expires on November 30, .
-2022. Compliance with this stipulation is indicated.
b. Condition 'A. 3. Particulate Control Requirement as required by 15A NCAC 2D .0515
"Particulates from Miscellaneous.Industrial Processes", states that particulate matter
emissions from the emission sources shall not exceed allowable emission rates.
Observed. Cement and flyash storage silos are being controlled by bagfilters. The
allowable emission rates from these.sources are not being exceeded. Compliance with
this stipulation was indicated during the permit application process.
C. Condition A. 4. Visible Emissions Control. Requirement as required by 15A NCAC 2D
.0521, "Control of Visible Emissions". The facility is limited to 20 percent opacity when
averaged over.a six -minute period.
Observed. No visible emissions were, observed by during the inspection. Compliance
with this stipulation is indicated.
d. Condition A. 5. Notification Requirement as required by" 15A NCAC 2D .0535 "Excess
Emissions Report &Malfunctions" states 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 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.

Concrete Pipe & Precast, LLC — Oakboro
May .17, 2016
Page 8
Observed. Based on a records review and conversation with Mr. Field, no excess
emissions have occurred at the facility. Compliance with this stipulation is indicated.
Condition A. 6. Fugitive Dust Control Requirement as required by 15A NCAC 2D .0540
"Particulates From Fugitive Dust Emissions Sources" states that 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 operator may be required to submit a fugitive dust plan as
described in 2D .0540(f).
Observed. MRO DAQ has not received any fugitive dust emissions complaints regarding
this facility since May 7, 2014. No substantive dust complaint was documented at that
time. This company has unloading and loading areas, process areas, stock piles, parking
area, acid access and haul roads at this facility that are unpaved. Mr. Field stated that a
water truck containing an 'agent referred to as Dust Down in the water was being used to
Wet the unpaved areas and gravel had been placed on the access and haul roads to reduce
the fugitive dust emissions at this facility. I observed that gravel had been placed on the
access and haul roads and the water truck had wet these roads prior to my inspection.
During the inspection, I observed no fugitive or visible emissions from this facility.
Compliance with this stipulation is indicated.
f. Condition A. 7. Fabric Filter Requirements including cartridge filters, baghouses, and
other dry filter particulate collection devices as required by 15A NCAC 2D .0611
"Monitoring, Recordkeeping and Reporting" states that the permittee shall perform, at a
minimum, an annual internal inspection of the filter system within 12 month period
following the initial 'inspection. Iri addition, the permittee shall perform periodic
inspections and maintenance as recommended by the equipment manufacturer and list
corrections inade and dates.of actions in a filter logbook (in written or electronic format).
Filter" logbook kept on -site and made availaFile to DAQ personnel upon request.
®bserved. The logbook provided by Mr. Field indicated that inspection and maintenance
activities of the, three bagfilters (ID Nos: CD-1; CD-3 and CD-5) and four cartridge filters
(ID Nos. CD-2, CD-4; CD-CD-7 and CD-9) are conducted annually by this company.
Annual internal inspections of the above referenced filter systems were conducted as
follows:
Plant No. Y
Flyash cartridge filter (ID No. CD-3 or company ID No. F-1)—11/17/15; 11/17/14 and
11/15/13;
Weigh hopper and central mixer (ID No.CD-4) — 6/30/15; 6/5/14 and 6/5h3; and
Cement cartridge filter (ID No. CD-9 or company ID No. C-1) — 6/3015; 6/5/14; 6/5/13
and 3/22/13.

Concrete Pipe & Precast, LLC — Oakboro
May 17, 2016
Page 9
PIant No. 2:
Flyash cartridge filter (ID No. CD-1 or company ID No. F-2)—11/17/15; 11/17/14 and
11/18/1.3.
Weigh hopper and central mixer (ID No. CD-2) — 6/30/15; 6/6/14 and 6/5/13; and
Cement cartridge filter (ID No. CD-7 or company ID No. C-2)—11/17/15; 6/29/15;
11/11/14; 8/21/14; 6/6/14; 6/5/13 and 3/22/13.
Plant No. 3:
Cement bagfilter (ID No. CD-5)— 12/2/15;- 12/2/14 and 12/3/13.
Internal inspections of these filters were within the 12 month period time frame as
indicated by this condition. Records of the cartridge filter and bagfilter inspection and
maintenance activities are being kept by this company more than two years. Compliance
with this stipulation is indicated.
8. GACT/MACT Review:
This facility has no engines/generators, fire pumps or any other -sources that are subject to GACT
or MACT. The propane -fired steam generator (boiler) is not subject to the National' Emission .
Standards for Hazardous Air Pollutants (NESHAP) for Industrial, Commercial, and Institutional
Boilers Area Sources (40 CFR Part 63, Subpart JJJJJJ or 6J), since this rule does not apply to a
boiler that is propane -fired.
9. Summary of changes needed to the current permit:
a. In the insignificant/exempt activities; the diesel oil description should be changed to
diesel fuel during the next revision.
b. Nine belt conveyors and three aggregate storage bins are exempt per 15A NCAC 2Q
.01.02 (c)(2)(E)(i). The description of aggregate storage and transfer should be added to
the insignificant/exempt list to account for these sources during the next permit revision.
C. The electronic yelfowsheet for permit changes needed has been completed and. -placed in
the facility's electronic file.
10. Compliance assistance offered during the ins ep ction:
None.
11. Section 112(0 Mplicability:
This facility does not appear to be subject to the requirements of the Chemical Accident Release
Prevention Program, Section 112(r) of the Clean Air Act.

Compliance Inspection Report
Permit: NCG070174 Effective: 06/01/13
Expiration: 05/31/18 Owner:
Concrete Pipe & Precast LLC
SOC: Effective:
Expiration: Facility:
Concrete Pipe & Products - Oakboro
County: Stanly
20047 Silver Rd
Region: Mooresville
Oakboro NC 28129
Contact Person: Jon Field
Title:
Phone: [phone]
Directions to Facility:
South on SR 205 to Oakboro, right on West. 8th Street then name changes to Silver Road and
plant is on the right.
System Classifications:
Primary ORC:
Certification:
Phone:
Secondary ORC(s):
On -Site Representative(s):
On -site representative
Jon Field
704-485-4614
Related Permits:
Inspection Date: 05/17/2016 Entry Time: 08:30AM Exit Time: 12:OOPM
Primary Inspector: Donna Cook Phone: ' 704-663-1669 Ext.2213
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Stone, Clay, Glass, and Concrete Products Stormwater Discharge COC
Facility Status: ® Compliant Not Compliant
Question Areas:
Storm Water
(See attachment summary)
__ Page: 1 -

Permit: NCG070174 Owner - Facility: Concrete Pipe & Precast LLC
Inspection Date: 05/17/2016 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
- - - -- - --- - -Page:--. . .... . ... _ .

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