NCG140046_EPA Inspection Report_20190603

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A UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
/ rW REGION 4
y Q ATLANTA FEDERAL CENTER
o� 61 FORSYTH STREET
At PAOIATLANTA, GEORGIA 30303-8960
MAY 2 8 2019
CERTIFIED MAIL 7017 1450 0000 7973 2779
RETURNED RECEIPT REQUESTED
RE r-,,,F!Vr.
Mr. Gus Segura
Operations Manager
Concrete Supply Company
P.O. Box 5247
Charlotte, North Carolina 28299
Re: Compliance Evaluation Inspections
Concrete Supply Company, Lincolnton, NC
NPDES Permit No. NCG140046
Dear Mr. Segura:
JUN 03 2019
DENR-LAND QUALITY
STORN+.VdATER iJERf i i 11NG
On March 19, 2019, the U.S. Environmental Protection Agency Region 4 and North Carolina
Department of Environmental Quality (NCDEQ) conducted a Compliance Evaluation Inspection (CEI)
at the Concrete Supply Company facility located at 831 South Madison Street in Lincolnton, NC. The
purpose of the CEI was to evaluate Concrete Supply Company facility's compliance with the
requirements of Sections 301 and 402(p) of the Clean Water Act (CWA), 33 U.S.C. §§ 1311 and
1342(p); the regulations promulgated thereunder at 40 C.F.R. § 122.26; and, the State of North
Carolina's NPDES General Permit NCG140046.
The EPA appreciates your cooperation in conducting this CEI. Enclosed is the EPA's CEI report, which
includes EPA's observations made during the CEI and to evaluate the facility's compliance with the
CWA. As a result, the EPA may be in further contact with Concrete Supply Company in the future.
While a response from you is not required at this time, if you do wish to respond to the CEI report,
provide additional information, or otherwise discuss the report, please contact Mr. Ahmad Dromgoole at
the above address, by email at [e-mail], or at [phone].
Sincerely,
Daniel J. O'Lone, Chief
Surface Water and Ground Water Section
Water Enforcement Branch
Enclosures
cc: Ms. Annette Lucas
NCDEQ
Internet Address (URL) • http://www.epa.gov
Recycled/Recyciable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 30 % Postconsumer)

1"'� U.S. Environmental Protection Agency, Region 4
61 Forsyth Street SW, Atlanta, GA 30303
o=
Water Compliance Inspection Report
FACILITY DATA
NPDES ID: NCG140046 Effective Date: 04/01/2017 Expiration Date: 06/30/2022
Facility Name: Concrete Supply Company SIC Code: 3273
Address: 831 Madison St, Lincolnton, NC 28092
On -Site Representative(s), Title, Phone Number: Responsible Official, Title, Phone Number, Mailing Address:
Gus Segura Gus Segura
Operations Manager Operations Manager
3823 Raleigh St 28206 3823 Raleigh St 28206
P.O. Box 5247 P.O. Box 5247
Charlotte, NC 28299 Charlotte, NC 28299
INSPECTION DATES/TIMES
Entry Date/Time: 03/19/19, 8:30 am Exit Date/Time: 03/19/19, 12:45 pm
NAMES OF EPA AND STATE INSPECTORS
EPA Inspectors: Ahmad Dromgoole, Kenneth Kwan
NCDENR Inspectors: Tamera Eplin, Tom Poe, Thad Valentine, Lauren Garcia, Alaina Morman
AREAS1 DURING INSPECTIONareas
X Permit Self -Compliance Program Pretreatment
X Records
Compliance Schedule Pollution Prevention
X Facility Site Review
Laboratory X Storm Water
X Effluent / Receiving Waters
X
Operations & Maintenance Combined Sewer Overflow
Flow Measurement
Sludge Handling/ Disposal Sanitary Sewer Overflow
INSPECTION NOTES
The inspection team, consisting of EPA inspectors and state inspectors from various regional offices, arrived at the facility on March
19, 2019 to perform an unannounced Compliance Evaluation Inspection (CEI). This CEI was performed as both a joint inspection
with the state and a training opportunity for state inspectors. Upon arrival at the facility, EPA inspectors presented credentials and
facilitated an opening conference. The CEI included both a records review portion and a facility walk through. Upon completion, an
exit conference was held with facility personnel in which they were informed of EPA's preliminary findings and told that an actual
inspection report will be sent to the facility by EPA.
.♦ REPRESENTATIVES
Inspector Signature/Name Office/Phone Number Date
USEPA Region 4/WPD-CWEB-SRES
404-562-9212
Ahmad Dromgoole, Environmental Engineer
USEPA Region 4/WPD-CWEB-SRES
404-562-9752
Kenneth Kwan, Environmental Engineer
Management Signature/Name
Office/Phone Number
Date
USEPA Region 4/WPD-CWEB-SRES
404-562-9434
Daniel J. O'Lone, Chief
Stormwater and Residuals Enforcement Section
Pagel of 8

1. FACILITY LOCATION INFORMATION
GPS
Latitude 35027'37.67"N
Longitude 81 ° 15'36.30"W
Coordinates
Receiving
South Fork Catawba
Site
Weather
Water(s) or
River
Acreage
3.5 acres
Condition
Clear skies,
MS4
Date of NOI (or
Discharge to
Does the site discharge
No Exposure
N/A
SIC
3273
303(d) listed
NO
pollutants contributing
N/A
Exclusion per
Code(s)
or TMDL
to the receiving stream
122.26( ))
I
I
I waters
impairment?
2. BASIC STORMWATER POLLUTION PREVENT INFORMATION
SPPP TOPICS (Part III)
YES
NO
N/E
SPPP on -site (obtain a copy of the plan) Section 9
X
A copy of the SPPP date December 15, 2011 was made available onsite for review during the
inspection.
Site Description Section 1
X
Identify potential Pollutant Sources and Particular Pollutants Section 1(b)
X
From the review of the SPPPP it appears that the necessary pollutant sources were identified.
Site Maps (general location map and site specific map) Section 1(c)
X
A site map was included with the plan and included information about the receiving waters, discharge
points, site boundaries, site topography, drainage features and flow directions, industrial activities,
and site best management practices (BMPs).
Spill History (3 year history or spills and corrective actions) Section 1(d)
X
A spill history log was maintained by the facility and kept in its SPPP. This document, seen in photo
DSCN1836, appear to document the necessary information and appears to have been updated
annually.
SPPP Certification Section 1(e)
X
The annual certifications were available at the site with the most recent certification being dated
O1/09/19.
Stormwater Management Strategy (Feasibility Study) Section 2(a)
X
Page 2-1 of the SPPP lists the procedures for conduction annual feasibility study. However, no records
of any feasibility study findings and conclusion are discussed in the SPPP.
Stormwater Management Strategy (Secondary Containment) Section 2(b)
X
Per the facility's permit, the site plan should include a table or summary of the above storage tanks
and their associated secondary containment. The summary should include the capacities of both the
tanks and the containment structure.
Stormwater BMP Summary Section
X
Include all structural and non-structural BMPs at the site)
Spill Prevention & Response Procedures (SPRP) Section 3
X
Preventative Maintenance and Good Housekeeping Program Section 4
X
Employee Training Section 6
X
Identify the Responsible Party Section 7
X
Page 2 of 8

2. BASIC STORMWATER POLLUTION PREVENT INFORMATION
SPPP TOPICS (Part III)
YES
NO
N/E
SPPP Modified or Update to Current Conditions Section 8
X
The SPPP provided during the inspection was from 2011. The review of the plan showed that it was
not current to the conditions of the plan including, but not limited to, an incorrect number of outfalls
(plan says 3 while the facility only considered 1 active) and the additional berm structure in the
southeast corner of the site for eliminating outfall 92.
Schedule and Procedures for Routine Inspections Section 5
X
Routine facility inspections are conducted semi-annually.
Concrete Supply Company operates a ready -mix concrete facility in Lincolnton, NC. Operations at this site began around
1970 and currently entails the operation of one mixing plant 5-6 days/week for one shift per day. Raw materials and products
from the site are moved by truck. Raw materials for the process include, but are not limited to, sand, gravel, fly ash, cement,
and chemical admixes. Except for the cement and admix chemicals, raw materials are stored outside in open storage piles.
The cement received at the site is loaded onto a belt conveyor and sent to one of the storage silos feeding the process. Admix
chemicals are maintained in outdoor storage tanks and totes that are connected to the process by hose or pipe.
The ready -mix plant consists primarily of a mixing process that loads concrete trucks. The raw materials are loaded into the
process from the loading bins. The loading bins are feed by conveyors which are manually loaded. The aggregate is loaded
into the concrete trucks where it is then mixed with water. The trucks are then washed off and delivered to the site. Concrete
Supply operates its own trucking fleet so upon delivery of a shipment, trucks return to the site so that they can be cleaned
and either reloaded or parked. The drum cleaning process entails the dumping to ground of any residual concrete and a drum
washout at the end of the day. The residual concrete dumped to ground is allowed to dry, re -crushed, and returned to the
process. The rinse water from the truck drums is then released to the facility's concrete washout basin.
The potential permitted discharges from this facility include both stormwater and process wastewater. According the
facility's SPPP, water from the site can be released through one of three outfalls. During the inspection, the facility informed
EPA that it only operated/monitored one outfall at the site currently and that most of the process wastewater from the drum
washout basin is either recycled to the process, used for dust suppression, or discharged to the City of Lincolnton's sanitary
sewer system.
4. RECORD REVIEW
Record Review
YES
NO
FN/E
Representative on -site
X
Records of the obtaining of a Certificate of Coverage (COC) Part I, Section B
X
The COC, in response to the submission of the NOI and other necessary documents, was issued to
the facility on 04/11/2014.
List of detergents, additives, polymers, brighteners, and cleaning agents Part II Section B(9)
X
A list of the various chemicals and admixes used in the process were provided in Appendices 13-1 and
B-2 of the facility's SPPP.
Records of the Implementation of the SPPP Part III Section 9, Part V Section D(6)
X
Page 3 of 8

4. RECORD REVIEW
Record Review
YES
NO
N/E
Maintenance and Housekeeping Programs Part III Section A(9), Part V Section D(6)
X
The permit requires records be maintained pertaining to the maintenance housekeeping activities
performed at the site as part of its SPPP. During the inspection, records pertaining to various
housekeeping and maintenance activities including sweeping/routine clean-up and concrete washout
basin maintenance were requested. According to the facility, documentation of these good
housekeeping practices where not maintained by the facility.
Records of Routine Inspections Part III Section A(9), Part V Section D(6)
X
Records of facility inspection were reviewed back through 2017. The semiannual inspection report
from 09/2018 can be seen in photos DSCN1865-DSCN1867. These records showed the facility not
documenting period inspections of the believed to be eliminated outfall near the southeast corner of
the facility (which was observed as not having a water tight diversion or containment structure in
place). Additionally, records were not available for the 3rd quarter 2016 inspection.
Records of Employee Training Part III Section A(9), Part V Section D(6)
X
Employee training records were reviewed back through 2017. During the review, training records for
2018 were not available.
Approval of Representative Outfalls Part III Section 1)(5), Part V Section D(6)
The facility had not requested the approval of a representative outfall.
X
Records of Benchmark Monitoring Part IV
X
According to Part II, Section 13(8) of the permit, all discharges of process wastewater should be
monitored in accordance with Part IV Section D of the permit. Part IV of the permit outlines
monitoring requirements for both stormwater and wastewater discharges. One notable difference
between stormwater and waste water requirements is that stormwater requires monitoring during a
measurable storm event at least 72 hours after the previous measurable event. Wastewater simply
requires monitoring within 30 minutes of the start of discharging. Additionally, wastewater
monitoring includes testing for effluent limitations and the inclusion of flow rate monitoring (for
facilities discharging to specific stream types).
When monitoring records were requested during the inspection, the facility stated that there had been
no discharges from the site meeting the requirements of measurable rain events in over five years.
When asked how the outfall was monitored for discharge, the facility stated that a contractor comes
to the facility when there is a rain event to observe the outfall. It was not clear as to how long the
contractor remains at the site but there was no way for the facility to know if there was a discharge
from the outfall at any point.
Although the facility claimed that there were no discharges occurring from the site, evidence was
observed of likely past discharges at outfalls at the site.
Records of Qualitative Monitoring Part IV Section C
The facility claimed that there had been no discharges from the site in 5 years. As a result, there would
X
have been no records of qualitative monitoring.
Records of Tiered Approach to Benchmark Exceedances Part III Section 1)(5), Part V
Section D(6)
The facility considered outfalls from the site to be commingled stormwater and wastewater outfalls;
X
therefore, would be required to meet the wastewater effluent limits. The tiered approach is only
applicable to benchmark exceedances at the outfalls.
Page 4 of 8

4. RECORD REVIEW
Record Review
YES
NO
N/E
Records of Stormwater Bypasses Part V Sections C(3)
The facility claimed that there had been no discharges from the site in 5 years. As a result, there would
X
have been no records of stormwater bypasses.
Records of Wastewater Bypasses Part V Sections C(4)
The facility claimed that there had been no discharges from the site in 5 years. As a result, there would
X
have been no records of stormwater bypasses.
Records of 24 hr Reporting Part V Sections E(8-10)
According facility personnel, there had been no incidences since 2017 requiring reporting within 24
X
hrs.
EVALUATION5. SITE 1
Pollutant Sources
Note location, quantitative description, design issue, O&M deficiencies (including the
nature and extent), and pollutants off -site
Cement at the site is received by truck and loaded into one of the two storage silos. The loading
hopper for these silos is located near the southeast corner of the facility and can be seen in photo
DSCN1858. The loading hopper is loaded with a front loader and transferred the material to the
silos via the belt conveyor seen in photo DSCN1859. At the top of the belt conveyor, a switch
was in place to direct the material from the belt conveyor to the appropriate silo.
Loading/Unloading
Area
The loading hopper was located near the crest of a hill leading to the stream. Sediment
accumulation was observed along the ground in this area which drains towards the stream as
seen in photo DSCN1858.
The area between the conveyor belt to the storage silos has large amount of sediment deposit
along the ground as seen in photo DSCN1859. This area near outfall #2 also drains towards the
stream.
Raw Material Storage
The sand, gravel, and fly ash used at the facility is stored outdoor storage piles near the southside
Facilities
of the site (see photos DSCN1853-DSCN1854). These storage piles were located within three
walled structures which are accessible by front loader.
Concrete Supply operates one mixing plant at the Lincolnton facility. The mixing plant has a
Outdoor Process
series of feed hoppers that feed the appropriate mix of raw materials to the mixing cell. These
Operations
hoppers are recharged by a belt conveyor that is manually loaded by front loader. Photographs
DSCN1863-DSCN1864 shows the truck loading area of the concrete mix plant. The feed
hoppers to the plant can also be seen in these photos.
The ready -mix concrete process involves the transport and handling of sandy/gravely materials.
These materials are typically manually transported around the facility resulting in the spilling
Housekeeping
and tracking of the material. During the site visit, areas of the site were observed with significant
material deposition appearing to be needing additional housekeeping. This include the area
around the cement silos and loading conveyor near the southeast corner of the site (seen in photos
DSCN1858-DSCN1859).
Concrete Supply utilities above ground storage tanks at the facility for vehicle fueling and
Liquid Storage Tanks
maintenance activities and for the storage of admix chemicals for the process. An equipment
fueling station was located along the west side of the property. There an above ground diesel
Page 5 of 8

Pollutant Sources
Note location, quantitative description, design issue, O&M deficiencies (including the
nature and extent), and pollutants off -site
tank was observed inside of a concrete secondary containment structure (see photo DSCN1852).
A second area on the eastside of the site was observed with above ground tanks for admix
chemicals. This area included storage tanks and tote bins located within a concrete secondary
containment struck (see photo DSCN1861). Smaller volumes of vehicle oil were also maintained
on site in 55-gal drums. This drum storage area, seen in photo DSCN1860, was located along
the east side of the property and was observed with shed cover and drums stationed off the
ground on spill catch pads.
The above ground storage tanks at the facility were located within a concrete secondary
containment structure. These two concrete structures were both configured with release valves
to drain accumulated liquid with in the structure. The drainage valves from the two structures
can be seen in photos DSCN1852 and DSCN1862. These valves were observed without a locking
mechanism but did have the valve handles removed.
Stormwater/wastewater runoff from this site is managed through the directing of the runoff to
the designated outfall. During the inspection, the structural controls were observed around
Outfall #1 and former Outfall 92. A rip rap berm was observed along the west side used to divert
runoff towards outfall 91 (see photos DSCN1845-DSCN1846). This berm controls runoff from
areas of the site including the truck washing operation (seen in photos DSCN1846-DSCN1847)
and directs it to the outfall. At outfall #1, a rip rap berm was in place to allow for the
Best Management
slowing/pooling of runoff to allow for the settling out of particulates (seen in photo DSCN1837).
Practices (BMPs)
The discharge pipe for Outfall 91 can be seen in photo DSCN1844 which appears to discharge
from the bottom of the pooling area near the accumulation level of the sediment.
Near the southeast corner of the site, the facility previously operated Outfall 2. According to site
personnel, this outfall had been removed from operation for 2-3 years. To decommission this
outfall, a concrete barrier was put up in the low laying areas in this corner to divert runoff from
the stream. During the inspection, the concrete barrier was observed as not being water tight (see
photo DSCN1857) was the was part of the facility's periodic inspections.
Spills/Leaks Handing
Spill kits were observed in the areas of the site with fluid storage. No evidence of past spills was
observed during the inspection.
Disposal/Waste
Once trucks return the facility, the residual concrete in the drums are emptied to the ground and
Handling Areas
allowed to dry. Once dry, the concrete is collected stored so that it can be recycled to the process.
One of these outdoor storage areas can be seen in photo DSCN1854.
Qn
Vehicle
cMaintenance
No vehicle maintenance activities were observed during the inspection.
a m
Areas
c Cd
Material
Stockpile
According to facility personnel' some of the dust suppression at the site is performed with
c
Wetting
process water from the drum washout operation from the clear water pit. These operations were
p-
Operations
not observed during the inspection.
Page 6 of 8

Pollutant Sources
5. SITE EVALUATION & SWP3 IMPLEMENTATION
Note location, quantitative description, design issue, O&M deficiencies (including the
nature and extent), and pollutants off -site
Concrete trucks have their drums washed at the wash station in the southwest corner of the site
(see photo DSCN1848). Once rinsed, the wastewater from the drums are emptied into a concrete
washout basin to allow for the removing of particulates. These series of concrete washout basins
Mixing Drum
can be seen in photos DSCN1849-DSCN1851. If required, a pH treatment can be performed in
Cleanouts
the basin to adjust the pH prior to discharging. According to facility personnel, there is never a
discharge from the clear water pit at the end or the treatment series due to the facility's ability to
pump the wastewater from the pit to the City of Lincolnton storm sewer drain (seen in photo
DSCN1850).
6. OUTFALL, STORMWATERDISCHARGE
& RECEIVING WATER OBSERVATIONS
Outfall, Stormwater
Discharge &
YES
NO
Receiving Water
Describe: According to the facility's site plan, there were three
stormwater/wastewater outfalls at the Lincolnton site. During the inspection, facility
personnel stated that they currently only operate Outfall 1 near the northwest corner
of the site (seen in photos DSCN1838, DSCN1844). Outfall 91 discharged to a
drainage feature, seen in photos DSCN1839-DSCNI843, leading to the tributary. In
Number & location
addition to the observing of silty material from the cement process in the ditch, there
of stormwater
were also erosion features and pooling water signaling the release of water to this
discharge(s)/outfall(s)
X
drainage feature.
consistent with the
SPPP
A second outfall was identified near the southeast corner of the site near the silo
loading conveyor (see photos DSCN1855-DSCN1857). This outfall was considered
in the SPPP but according to the facility was removed and no long monitored under
the plan. During the inspection, the outfall did not appear to have been adequately
sealed off to climate potential discharges nor wasroutinely monitored to ensure no
discharge. A third outfall was also listed in the SPPP which did not appear to be
currently active or in place at the site.
Evidence of off -site
accumulation of
X
Describe: No evidence of the offsite accumulation of pollutants was observed in the
pollutants observed
tributary during the inspection.
in receiving water
Other potential
Describe: According to facility personnel, the facility is allowed to periodically
discharges off -site
pump wastewater from the clear water pit to the City of Lincolnton's sanitary sewer
(through outfalls not
X
system. This is a discharge point for process wastewater which was not discussed in
included in the
the facility's SPPP. Additionally, the facility neither obtained a pretreatment permit
SPPP)
from the city, an official written agreement with the city, nor established a way to
monitor the amount and condition of the wastewater being sent to the city's system.
Page 7 of 8

6. OUTFALL, STORMWATEROBSERVATIONS
Outfall, Stormwater
Discharge & YES NO
Receiving Water
Describe: General Permit NCG140000 provides permit coverage for certain non-
Non-stormwater
stormwater discharges and process wastewater associated with only three distinct
discharge
X
industrial activities. However, the use of concrete wash water for dust control
throughout the site is not one of the authorized process wastewater discharges
specified in the permit.
Additional inspection summary, narrative, findings, comments, photos, and schematic diagram of the facility area
as necessary:
An exit conference was held with Gus Segura were the following observations were relayed:
• SPPP Observations
o The site plan shows it last being updated in 2011
o The spill records in the plan did not include annual updates or dating
o The site plan showed in an inaccurate outfall count
o The site map did not include the receiving water or identify the catch basin near the outfall
o No formal or signed agreement was providable between the facility and the City of Lincolnton allowing
for the discharging of the process water from the concrete washout ponds to the city's sewer system.
• Records Observations
o Review of the sampling records at the site showed sampling having not been performed for over five years
claiming that there has been no discharge from the site
o The facility was unable to provide housekeeping and maintenance records in addition to there being no set
maintenance and/or housekeeping schedule provided in the site plan
o Records of training from 2018 were not available
o Semiannual inspection records from early 2016 were not available
Site Observations
o Additional housekeeping and BMPs were needed in the area near the loading conveyor located near the
stream
o The valves on the secondary containment structures did not have a locking mechanism
o The outfall near the southeast corner of the facility, which the facility claims to have closed out, was not
water tight or properly bermed to assure there was no potential to discharge
o A concrete sheen/accumulation was observed in the City of Lincolnton's sewer man hole likely from the
discharging of concrete wash water to the sewer drain.
Page 8 of 8

SW-NCG 140046-031919
Concrete Supply Company - Lincolnton Plant
831 Madison St
Lincolnton, NC 28092
Overview Map
SW-NCG140046-031919 Page 1 of 33

DSCN 1836.J PG
vvOfksheet$14
LIST OF SIGNIFICANT SPILLS AND LEAKS Completed by: r1
Title:e
Date 4-J r
bons: ReCOfd below all s igntficant sp HIS and significant leaks of toxic or hazardous pnllut nts that have occurred at the Facility in the fireree yaaan
to the aftective date of the Permit.
Rk-ns: Significant spills Include but are not limited to releases of oil ar hazardofus subj6I nces Inexcess reto
tat Year Pnor
Dee¢rlptlon Row. N P roc-4ure
ilmaYnl of Lorger Eapo,ea weve..e.,�
!fit! Location Materiel to storm wn,r n4en,•e,
5p311 Leek IrandI—an en. ..,p type of Malarial Quantity Source. It Known Reason Recovered {TnMrF,l►el
Znh Year Pr1or
pyre
boar Price
Lecallorl
I I Laa k Iw mdreaad on ■r
LO'atiM
CM" Spill L"k {a. rrd on en►
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S7eacriprld*rI Rwcoeaa Procedure
Amount of Longer ElDowd P—wArw
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Hknown Reason Reemarad [rruai%ihIW Taken
Material Querrtlty Source• , c �—, f
of Material
R"Pon" Procedure
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Attributes
File Name DSCN1836.JPG
Description Photograph of the annual significant spills and leak log.
Latitude
Longitude
SW-NCG140046-031919 Page 2 of 33

DSCN1837.JPG
Attributes
File Name
DSCN1837.JPG
Description
Photograph of the bermed area and inlet at Outfall 1. This outfall, located in the northwest cover
of the site, has the potential to discharge both stormwater and wastewater.
Latitude
N 35' 27' 40.60"
Longitude
W 81' 15' 38.43"
SW-NCG140046-031919 Page 3 of 33

DSCN 1838.J PG
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Attributes
File Name
DSCN1838.JPG
Description
Photograph of the outlet for Outfall 1. This outfall, located in the northwest cover of the site, has
the potential to discharge both stormwater and wastewater. The area downgradient of the outfall
had what appeared to be accumulated silty material from the concrete process.
Latitude
N 35' 27' 41.38"
Longitude
W 81' 15' 40.91"
SW-NCG140046-031919 Page 4 of 33

DSCN 1839.J PG
Attributes
File Name
DSCN1839.JPG
Description
Photograph of the ditch down gradient of Outfall 1 leading towards the creek. This area appeared
to be accumulated silty material from the concrete process. Pooling water was observed in
locations in the ditch in addition to the evidence of erosion features.
Latitude
N 35° 27' 39.65"
Longitude
W 81' 15' 38.42"
SW-NCG140046-031919 Page 5 of 33

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DSCN 1842.J PG
Attributes
File Name
DSCN1842.JPG
Description
Photograph of the junction between the creek and the ditch down gradient of Outfall 1.
Latitude
N 35° 27' 40.12"
Longitude
W 81' 15' 38.76"
SW-NCG140046-031919 Page 8 of 33

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DSCN1844.JPG
Attributes
File Name
DSCN1844.JPG
Description
Photograph of the berm and inlet to the pipe for Outfall 1. During the inspection, the facility side
of the berm had damp accumulated sediment to the level of the outfall pipe.
Latitude
N 35' 27' 39.54"
Longitude
W 81' 15' 37.48"
SW-NCG140046-031919 Page 10 of 33

DSCN 1845.J PG
Attributes
File Name
DSCN1845.JPG
Description
Photograph of the berm along the river near the outfalI.
Latitude
N 35° 27' 39.45"
Longitude
W 81' 15' 37.51"
SW-NCG140046-031919 Page 11 of 33

DSCN 1846.J PG
03,19.2019 10:45
Attributes
File Name
DSCN1846.JPG
Description
Photograph of wastewater from truck washing operations observed during the site running
towards the bermed area near the outfall.
Latitude
N 35° 27' 39.07"
Longitude
W 81' 15' 36.97"
SW-NCG140046-031919 Page 12 of 33

DSCN 1847.J PG
Attributes
File Name
DSCN1847.JPG
Description
Photograph of wastewater from truck washing operations observed during the site running
towards the bermed area near the outfall.
Latitude
N 35° 27' 39.04"
Longitude
W 81' 15' 36.99"
SW-NCG140046-031919 Page 13 of 33

DSCN 1848.J PG
Attributes
File Name
DSCN1848.JPG
Description
Photograph of the truck wash station near the concrete wash pit.
Latitude
N 35' 27' 36.32"
Longitude
W 81' 15' 39.12"
SW-NCG140046-031919 Page 14 of 33

DSCN 1849.J PG
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Tarr k ' st
Attributes
File Name
DSCN1849.JPG
Description
Photograph of the concrete washout basin.
Latitude
N 35° 27' 36.85"
Longitude
W 81' 15' 37.93"
SW-NCG140046-031919 Page 15 of 33

DSCN1850.JPG
r
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Attributes
File Name
DSCN1850.JPG
Description
Photograph of the municipality's sanitary sewer manhole near the concrete washout station.
According to facility personnel, it periodically pump concrete washout water via a portable pump
into this sanitary sewer manhole.
Latitude
N 35' 27' 37.25"
Longitude
W 81' 15' 37.67"
SW-NCG140046-031919 Page 16 of 33

DSCN1851.JPG
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5.
Attributes
File Name
DSCN1851.JPG
Description
Photograph of the final treatment cell (Bright well) of the concrete washout. The water from this
cell can be used in the process, dust suppression, or directed to the city sanitary sewer manhole.
Latitude
N 35° 27' 37.30"
Longitude
W 81' 15' 38.54"
SW-NCG140046-031919 Page 17 of 33

DSCN 1852.J PG
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76
Attributes
File Name
DSCN1852.JPG
Description
Photograph of the diesel fuel tank and its secondary containment structure. A drainage valve
was observed in the secondary containment structure. The valve was closed at the time of the
inspection. Although a lock was not in place on the valve, the valve arm had been removed.
Latitude
N 35' 27' 37.16"
Longitude
W 81' 15' 37.49"
SW-NCG140046-031919 Page 18 of 33

DSCN1853.JPG
Attributes
File Name
DSCN1853.JPG
Description
Photograph of the outdoor material storage piles.
Latitude
N 35° 27' 36.50"
Longitude
W 81' 15' 36.70"
SW-NCG140046-031919 Page 19 of 33

DSCN 1854.J PG
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Attributes
File Name
DSCN1854.JPG
Description
Photograph of the material storage piles. Some sediment tracking was observed from the sand
storage pile. A concrete waste storage area can be seen in the back of the photograph along the
south side of the property.
Latitude
N 35' 27' 36.51"
Longitude
W 81' 15' 36.76"
SW-NCG140046-031919 Page 20 of 33

DSCN1855.JPG
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Attributes
File Name
DSCN1855.JPG
Description
Junction point with the stream and the old outfall from the site which was considered closed out
and removed from its permit requirements.
Latitude
N 35° 27' 34.22"
Longitude
W 81' 15' 34.22"
SW-NCG140046-031919 Page 21 of 33

DS[N185§]P
Attributes
File Name
DS N18 E]PG
Description
Down gradient from the former outafHleading m the stream.
Latitude
N35 27'3*4"
Longitude
W81'1y3sy
SW-NCG1 OO SOa1919 Page 22 0 33

DS[N1857]P
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Attributes
File Name
DS N18 z]PG
Description
Photograph of the area just down gradient o the removed outaf /Thephotosho&a+ecncrete
blocks used to mock off the outaf / The block structure was observed with asps between the
blocks which would still allow for stormwater discharges.
Latitude
N35 27'35.0"
Longitude
W81'1y3J?
SW-NCG1 OO SOa1919 Page 23 0 33

DSCN 1858.J PG
Attributes
File Name
DSCN1858.JPG
Description
Photograph of the loading hopper to the storage silos. The loading hopper was located near the
crest of a hill leading to the stream. Sediment accumulation was observed along the ground in this
area which drains towards the stream.
Latitude
N 35' 27' 35.51"
Longitude
W 81' 15' 35.04"
SW-NCG140046-031919 Page 24 of 33

DSCN1859.JPG
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Attributes
File Name
DSCN1859.JPG
Description
Photograph of the loading conveyor to the storage silos. The loading hopper was located near the
crest of a hill leading to the stream. Sediment accumulation was observed along the ground in this
area which drains towards the stream.
Latitude
N 35' 27' 35.53"
Longitude
W 81' 15' 35.04"
SW-NCG140046-031919 Page 25 of 33

DSCN1860.JPG
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Attributes
File Name
DSCN1860.JPG
Description
Photograph of the covered area used for oil storage. Oil drums were observed on secondary
containment structures and underneath cover.
Latitude
N 35° 27' 37.07"
Longitude
W 81' 15' 35.05"
SW-NCG140046-031919 Page 26 of 33

DSCN1861.JPG
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Attributes
File Name
DSCN1861.JPG
Description
Photograph of the outdoor chemical storage area and tanks. The tank area had a secondary
containment structure with a release valve. The valve, which was observed with the valve handle
removed, was observed closed during the inspection.
Latitude
N 35' 27' 37.18"
Longitude
W 81' 15' 35.04"
SW-NCG140046-031919 Page 27 of 33

DSCN 1862.J PG
Attributes
File Name
DSCN1862.JPG
Description
Photograph of the outdoor chemical storage area and tanks. The tank area had a secondary
containment structure with a release valve. The valve, which was observed with the valve handle
removed, was observed closed during the inspection.
Latitude
N 35' 27' 37.43"
Longitude
W 81' 15' 34.91"
SW-NCG140046-031919 Page 28 of 33

DSCN 1863.J PG
Attributes
File Name
DSCN1863.JPG
Description
Photograph of the truck loading operation.
Latitude
N 35° 27' 37.07"
Longitude
W 81' 15' 36.27"
SW-NCG140046-031919 Page 29 of 33

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DSCN 1865.J PG
1 Site fJbservations:
Envlranmental Ins eetion SI
Plant: Lincolmon Date:
9441010
Main entrance landscaped and well maintained
Yard free from debris
Leaks throughout yard ex: "vehicles admix other" addressed
Wash -out pit well maintained includin window area
Yard free from fu itive dust and solids run-off " Yard needs to be washed off on a re ular basis"
Is the rock and sand that is washed away from stock Iles scra ed u " Minimize solids"
Catch basin filtration maintained rope rl"Replace Hlay or Rock dams"
Assigned Parkin "Leak Detection"
Fuel hose has break -a -way connection
S ill kits available near fuel station
Security fence around property free of yea and in good repair
S ill kits available for trucks
Aggregate unloading and storage:
NOY Yes Nn
r. x Water runoff from agg directed to catch basins, ponds, or wash down areas
Z x Water clear of oil sheen in deliver areas
3 x Area between. agg storage and rest of Yard permeable "brass -dirt" for water runoff
d x Valley flutters leading towards Storm Water drains have filtration to catch solids and is replaced regularly
Batch Plant.
NOv Y" No
f.M
Black walls around admix secondary poured solid
gif truck wash is notlocated in the wash out area is there secondary containment
Trash removed from the inside of the secondary containment
Freeofan leaks ors illsinside secandar containment
Dischar a valve closed and handle removed
is the ba house free from dustinAustin frolector workin ro erl 7. rk2 nahelic au a readin correct ran e " 2-0
ALL "Na'S" i4ttISTBE EXPLAINED
PropertY Of COncfete SuPPA' CO
Attributes
File Name
DSCN1865.JPG
Description
Photograph of the most recent semiannual inspection performed at the facility.
Latitude
Longitude
SW-NCG140046-031919 Page 31 of 33

DSCN 1866.J PG
i.
Semi noel
IK"h out area: Environmental Ins ection
NOV Yes No
Is it maintained and neat in appearance i_e.. Not overflowingwith solids and debris an waits
ADryina
area of proper size
is a Ph adiuster used to treat wash water
/Is
water recycled Into concrete or truck wash down
SDo
OX
bays allow for solids to settle
I the main Storm water run off separate from the Process water run off
as containments
h rocessed water born Pant and or second
is all water contained on site other than extreme rain events
hock fuelin and Olt -Stara e'
NOV Yes No
X
is there an oil allet used to contain ossible leaks from rum
far clean u of s ills and leaks
7
7
x
1s the fuelin area clean and accesslGle
at the fuelin area
3
x
Is there a s ill kit located
St) for the fuel um
a'
X
Is there a Ern enc
Are Homemade Oil containers bein used
X
Ewer �onser�atian
N•A Yes Na
Are the Yard Ii his on Burin da Vi ht pur
t
x
Are the Yard rights set an w� hou[ mate ial belie loaded
2.
X x
Are the A belts runnin bout the lent
Air leaksh ro
3
A
X
An si ns of
flAixers runnin ,fhile yraitin to load
and eat bein used
x
1l
Is the Loader runnin
Collector on while Iant is inactive
set correctl
7
AL
x
Is the Dust
Is there a ra rar►lmable Thermostat
buildin Ii hts on
!�
X
x
unnecessar
Are there an hts bein used i = s �' u v
li
}Q
X
Efficient
Are E ner mixer overflaWin
tank an
Ii.
Unattend ed water
Y
Attributes
File Name
DSCN1866.JPG
Description
Photograph of the most recent semiannual inspection performed at the facility.
Latitude
Longitude
SW-NCG140046-031919 Page 32 of 33

DSCN 1867.J PG
Envtronmentallns ect;on
Administrative:
NOW Yes No
1.
x
Is the Air permit available in managers office
2.
x
is the Air permit current
J.
x
Are pressure readings documented daily - Magnahelic gauge readings „
4.
x
Are dust collector maintenance logs maintained, un to date, and available
S.
X
Does the plant have a copy of their SWP3 plan
B
x
Stormwater Ian modificati7. on fo u-to-da►e
the Storm Water General ermit on site or in binder
x
Is there a co of
8
x
Is there a Certificate of Covera e
e included in the SWP3 binder
9
x
is there a si ned Certification a
Authorization form included in the SWP3 binder
fe
x
Is there a si ned Si nature
Observation re art com leted for the lant
1 i
X
visual
Storm Water and SPCC train u -t -date
to date
!2
12.
x
Leaks and S ills Certification u
X
Si nificant
Nan - Stornwater Certif lcation u to dreformed Burin calendar ear
Id'
x
feted and ❑ischar a putfaii Monitai
At least two Qualitative sam lin s
i5
][
X
lin and testin com
Anal tical sam Monthi SPCC ins ections ato date stormed
16.
Are the Weekl and IJST u
1r
X
Are the monthl Yearl andTri-Annual
M A
1s.
Attributes
File Name
DSCN1867.JPG
Description
Photograph of the most recent semiannual inspection performed at the facility.
Latitude
Longitude
SW-NCG140046-031919 Page 33 of 33