NCG020045_Martin Marietta Stormwater Inspection Report (Arrowood)_20230509

Charlotte -Mecklenburg
STORM
WATER
Services
May 9, 2023
Robert Severt, Plant Manager
1325 Texland Boulevard
Charlotte, NC 28273
Subject: Industrial Facility Inspection
Martin Marietta, Inc. — Arrowood Quarry
Dear Robert Severt:
StormWater.CharMeck.org
On May 3, 2023, Julianna Hawley of Charlotte -Mecklenburg Storm Water Services (CMSWS)
conducted an inspection of the above referenced facility as a requirement of the City of Charlotte's
NPDES Permit, NCS000240, Part Il, Section H. Inspection authority is granted by Charlotte City
Code Chapter 18, Article III, Section 18-82. At the time of inspection, the facility was observed
to be in compliance with the City of Charlotte Storm Water Pollution Control Ordinance.
The inspection was also conducted as part of a cooperative working agreement between
Mecklenburg County and the North Carolina Department of Environmental Quality (NCDEQ) —
Division of Energy, Mineral and Land Resources (DEMLR). NCDEQ — DEMLR has been copied
on this report and made aware of the following observations regarding the facility's NPDES
stormwater permit:
1) Stormwater Pollution Prevention Plan (SWPPP)
A Stormwater Pollution Prevention Plan (SWPPP) has been developed, recorded, and
implemented.
2) Qualitative Monitoring
Qualitative monitoring has been conducted and recorded; however, qualitative monitoring has not
been conducted concurrently with analytical monitoring. The facility should conduct qualitative
monitoring concurrently with analytical monitoring as required in the NCGO20000 permit, Part
E-I (b).
3) Analytical Monitoring
Analytical monitoring has been conducted and recorded; however, according to facility personnel,
more than 55 gallons of motor oil and/or hydraulic oil is used per month when averaged over the
calendar year. No monitoring has been conducted for the required vehicle maintenance
parameters. The facility should monitor for the required parameters as per the NCG020000
permit, Part F-2, Table 2.
•
> :�i 2145 Suttle Avenue 600 East 4th Street
Charlotte, NC 28208 Charlotte, NC 28202
charlottenc.gov

Robert Severt, Plant Manager
May 9, 2023
Page 2
Thank you for the assistance and cooperation with the site inspection. The attached
report provides details about inspection observations and should be self-explanatory. Please
contact me at [phone] if you have any questions or need additional information. For
questions specifically regarding your State -issued NPDES Stormwater Certificate of Coverage
NCG020045, please contact Jeffrey Chandler with NCDEQ — DEMLR at [phone].
Thank you,
Julianna Hawley
Environmental Specialist III
Charlotte -Mecklenburg Storm Water Services
cc: Andrew DeCristofaro, Charlotte Storm Water Services
Zahid Khan, NCDEQ — DEMLR
Jeffrey Chandler, NCDEQ — DEMLR
Jerry Eplin, NCDEQ — DEMLR
Attachment

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Facility Inspection
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Facility Name: Martin Marietta - Arrowood Inspection # : 75679
Contact: Robert Severt, Plant Manager Permit #: NCG020045
Inspector: Julianna Hawley Receiving Stream: SUGAR
Inspection Date: 05/03/2023 Entry Time: 9:00 am Exit Time: 11:30 am SIC #:
Facility Description: Martin Marietta, Inc. - Arrowood Quarry is located at 11325 Texland Boulevard on approximately
407 acres. Martin Marrietta also owns an adjacent parcel in South Carolina. The facility is a quarry that performs
blasting and produces aggregate. 7
File Review/History: Charlotte -Mecklenburg Storm Water Services (CMSWS) has not previously inspected this facility.
An NOV was issued for an illicit discharge from a stormwater outfall originating from a service request on 3/31/2023.
Inspection Summary: At the time of inspection, the facility was observed to be in compliance with the City of Charlotte
Stormwater Pollution Control Ordinance. Please refer to the inspection report for comments and recommendations.
Site Inspection Deficiency Comments
Stormwater system (catch basins,
No
Stormwater conveys through the site via sheet flow and
inlets, outfalls, etc.)
leaves the facility from two stormwater outfalls. The facility
also has two wastewater outfalls that discharge onsite.
Several settling pits, one pond, and one freshwater lake were
observed to be in good condition. A previous service request
observed a discharge from one of the stormwater outfalls;
best management practices were observed at the pipe
leading to this outfall. No stormwater pollution issues were
observed.
Erosion issues
No
No erosion issues were observed onsite during the inspection
Structural stormwater control
No
Several settling pits, one pond, and one freshwater lake were
measures (SCMs)
observed to be in good condition. The quarry pit also
functions as an additional SCM. No stormwater pollution
issues were observed.
Illicit discharges/connections
No
No illicit discharges/connections were observed onsite during
the inspection.
Aboveground storage tank(s) (ASTs)
No
Some of the ASTs were observed to be stored under cover
and any associated venting and/or
and within secondary containment. Two 10,000-gallon diesel
dispenser(s) — list tank size(s) and
fuel ASTs were observed to be stored uncovered within
contents
secondary containment. Records are kept of releases from
this area. A list of onsite ASTs and secondary containment
are included in the SPCC. No stormwater pollution issues
were observed at the tanks, secondary containment areas, or
dispensers.
Underground storage tank(s) (USTs)
N/A
and any associated fill port area(s)
and dispenser(s) — list tank size(s)
and contents
•
(& To report pollution or drainage problems call: 311
CHARLOTTE_ http://stormwater.charmeck.org
5/8/2023 3:42:31 PM
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Site Inspection Deficiency Comments
Outdoor material storage area(s)
No
Vehicles, equipment, used oil filters, tires, materials, and
aggregate were observed to be stored outdoors. The used oil
filters were observed to be stored in a closed container under
canopy cover. The outdoor storage areas convey to the
quarry pit. No stormwater pollution issues were observed.
Outdoor processing area(s)
No
Mining and processing was observed to be conducted
outdoors. Equipment maintenance occurs outdoors. The
outdoor processing areas convey to the quarry pit. No
stormwater pollution issues were observed.
Loading/unloading area(s)
No
No stormwater pollution issues were observed at the loading/
unloading area.
Vehicle/equipment area(s) - fueling,
No
Fueling is conducted at the ASTs. Maintenance and washing
maintenance, washing, storage, etc.
occurs outdoors in an area that conveys into the quarry pit.
Equipment and vehicles were observed to be stored outdoors.
No stormwater pollution issues were observed.
Oil/water separator and/or
N/A
pretreatment
Waste storage/disposal area(s) -
Recommendation
Two uncovered waste open tops and one municipal waste
open tops, waste containers, scrap
container were observed onsite. The municipal waste
metal bins, etc.
container was not observed with its drain plug or rain flaps in
place. CMSWS recommends that the waste containers be
covered and drain plugs be in place to protect water quality.
Food service area(s)
N/A
Indoor material storage area(s)
No
Pallets of DEF, supplies, and materials were observed to be
stored indoors in the shop. No stormwater pollution issues
were observed.
Indoor processing area(s)
No
A self-contained parts washer was observed indoors. No
stormwater pollution issues were observed.
Floor drains
N/A
Spill response equipment
Recommendation
Spill response equipment was observed in the storage room
at the shop. No spill kits were observed at the ASTs, in the
shop, or at the loading/unloading area. CMSWS
recommends that ASTs be placed in locations with a high
potential for spills.
SWPPP Section Observed Comments
Does the facility have a Stormwater
Yes
The facility has a NC and SC SWPPP and SPCC plan.
Pollution Prevention Plan (SWPPP)?
Reviewed and updated annually
Yes
The most recent review was conducted on 2/16/2022.
Responsible party
Yes
General location (USGS) map
Yes
Detailed site map
Recommendation
The topography is included in the general location map. No
table of latitudes and longitudes was observed on the site
map. The facility should include a table of latitudes and
longitudes as required in the NCG020000 permit, Part B-3(e).
Narrative description of industrial
Yes
processes
Feasibility study
N/A
No feasibility study is required for the NCG020000.
Evaluation of stormwater outfalls (non
Yes
Evaluations of stormwater and wastewater outfalls occurs
-stormwater discharge evaluation)
weekly.
Stormwater best management
Yes
practice (BMP) summary
•
(& To report pollution or drainage problems call: 311
CIIARIATTE_ http://stormwater.charmeck.org
5/8/2023 3:42:31 PM
Page 2 of 3

SWPPP Section Observed Comments
Secondary containment plan (all
Yes
All necessary secondary containment is provided and
necessary secondary containment
documented in the SPCC.
provided and documented)
Records on every release from a
Yes
The facility keeps a log of every release in the SPCC.
secondary containment system (for
the last 5 years)
Spill prevention and response
Yes
procedures (SPRP)
List of significant spills or leaks (for
Yes
The facility has a notation of "no spills" for years in which no
the last 3 years)
spills have occurred.
Solvent management plan (SMP)
N/A
Preventative maintenance and good
Yes
housekeeping program (PMGHP)
Facility inspections conducted as
Yes
Outfall and facility inspections are conducted weekly. Tank
required
inspections are conducted monthly.
Employee training (provided and
Yes
1
Employee training was provided and documented on 2/25/202
documented)
1 2 and 1/3/2023.
Qualitative/Analytical Monitoring Observed Comments
Qualitative monitoring conducted as
Recommendation
Qualitative monitoring was conducted on 3/3/2023, 11/9/2022,
required
and 6/29/2022. These dates are not consistent with the
analytical monitoring. Qualitative monitoring should be
conducted concurrently with analytical monitoring as required
in the NCG020000 permit, Part E-1(b).
Analytical monitoring conducted as
Yes
Analytical monitoring was conducted as required on 3/17/202
required
3, 12/13/2022, 9/29/2022, and 6/16/2022.
Analytical monitoring for onsite
No
According to facility personnel, the facility uses more than 55
vehicle and equipment maintenance
gallons of motor oil and/or hydraulic oil per month when
as required
averaged over the calendar year. The facility should monitor
for the required vehicle maintenance parameters as per the
NCG020000 permit, Part F-2, Table 2.
Permit and Outfalls Observed Comments
Copy of permit and certificate of
Yes
NCG020045
coverage onsite
All outfalls observed
Yes
No stormwater pollution issues were observed.
Number of Outfalls Observed
2
Representative outfall status
N/A
documented by DEMLR
Annual no -exposure self re-certificatio
N/A
n documented
•
(& To report pollution or drainage problems call: 311
CHARIATTE_ http://stormwater.charmeck.org
5/8/2023 3:42:31 PM
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