WQ0007169_AROCompleteFile_20190208

W. RONALD HAYNES, P. E.
CONSULTING ENGINEER
October 6, 2000
Stormwater And General Permits Units
Division of Water Quality .
1617 Mail service Center
Raleigh; NC 27699-1617
Subject: Caldwell Ready Mix, Inc.
.Please find enclosed a Notice of Intent form for the above facility.
Included are the check for the certificate of coverage fee and the
location maps.
Sincerely,
.yG , oe-v,-..�Cd
W. Ronald Haynes, P.E.
_cc:, Michael Triplette
im Reid NC DENR DWQ ARO
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828
P.O. BOX 666 • GRANITE FALLS, NORTH CAROLINA 28630 a TEL. (p,%* 396.5978

State of North Cai
Department of En
and Natural Reso
Division of Water Qu
James B. Hunt, Jr.,
Bill Holman, Secret
Kerr T. Stevens, Di
'7
)lina
ironment
rces
lity
)vernor,
for
January 8, 2001
MR. MICHAEL L. TRIPLETT]
CALDWELL READY MIX
POST OFFICE BOX 461
GRANITE FALLS, NC 28630
Dear Mr. Triplette: j
PRESIDENT
Subject:
/ • •
NCDENR.
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT,AND NATURAL RESOURCES
f k� SAN If22001 !f ;
E AmIJ
Application No. WQ0007169
Additional Information Request
Caldwell Ready Mix
Recycle Facility
Caldwell County
The Non -Discharge Permitting Unit has conducted a preliminary engineering review of the
subject application. Additional information is required before we can continue our review.
Please address the following by February 15, 2001:
♦ Please provide more detailed information on the settling basin operation. Please
include specific detail on the overflow process of the settling basin.
♦ Please provide information on the overflow drain located on the west side of the
building beside the settling basin. Please clarify the source of the flow for this drain.
Please note that additional comments from the Regional Office are pending at this time, and
further requests may be necessary to address these comments. Please be aware` -that you are
responsible for meeting; all requirements set forth in North Carolina rules and regulations. Any
oversights that occurred in the review of the subject application package are still the
responsibility of the applicant. In addition, any omissions made in responding to the above items
may result in future requests for additional information.
Please reference the 'subject permit application number when providing the requested
information. Two (2) copies of the requested information should be signed, dated, and submitted
to my attention at the address below. Please note .that failure to provide this additional
information on or before the above requested date can result in your application being returned as
incomplete.
1617 Mail Service Center, Raleigh North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity !,Affirmative Action Employer 50% recycled/ 10% post -consumer paper
I

If you have any questions regarding this request, please call me at [phone], extension
370. Thank you for your cooperation.
Sincerely,
_---
1
- Sharnay E. Torrance
Environmental Engineer.
Non -Discharge Permitting Unit
Cc: Jim Reid, Ashville Regional Office, Water Quality
Permit File WQ0007169

,+ Division of Fater Quality / Fater Quality Section
NCDENRNational Pollutant Discharge Elimination System
NOW" CAROUM DMVRWEWO
Ewnwyor AND NAtisw. ftwup=
NCG140000
to
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG140000-
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC` 3273 Ready Mixed Concrete
' Standard Industrial Classification Code
i
(Please print or type)
1) Mailing address' of owner/operator:.
Name Caldwell Ready Mix, Inc.
Street Address P O . Box 461
City Granite Falls State Nom_ ZIP Code 28630
Telephone No. 828 396-21 37 Fax:. 828
396-6141
' Address to which all permit correspondence will be mailed
2)
Location of facility producing discharge:
Facility Name Caldwell Ready Mix,
Facility Contact Michael L. Triplette
Street Address 2823 Mission Road
City Hudson
County Caldwell
Telephone No.. 828 396-2137 Fax: [phone]
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), from Lenoir, NC --take Hwy 321- south
to SR 1108, turn right (west) Plant entrance on left about 300 yds
(A copy of a county map or USGS quad sheet with facility clearly located on the map Is required to be submitted with this application)
4) This NPDES Permit Application applies to which, of the following
❑ New or Proposed Facility Date operation is to begin December 2000
P Existing
5) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity atthis_facility
SIC Code:3 ; 2 7 3
6) Provide a brief description of the types of industrial activities and products produced at this facility
(Include a site processldiagram with this submittal):
Facility stores raw materials and. manufactures concrete
batches for trans t in trarja.L x tsps
Inc.
State NC ZIP Code 28638
Page 1 of 4
SWU-229-080199

NCG140000 N.O.I.
7) Discharge points / Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater from the property? 3
What is the name of the body or bodies of water {creek, stream, river, lake, etc.) that the facility stormwater
discharges end up in? Little Gunpowder Creek
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 .
Receiving water classification (if known): "Y`' WS—
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 -1 or freshwater. ORW
8) Does this facility have any other NPDES permits? -
1?5 No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
9) Does this facility have any Non -Discharge permits (ex: recycle permits)?
❑ No
13 Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility: WQ 0 0 071 6 9
10) Does this facility employ any best management practices for stormwater control?
❑ No
9 Yes
If yes, please briefly describe:... Administrative measures include debris control
and site will have a retention basin
11) Does this facility have a Stormwater Pollution Prevention Plan?
13 No
❑Yes'
If yes, when was it implemented?
12) Are vehicle maintenance activities occurring at this facility?
❑ No
5 Yes
13) .Are discharges occurring from any of the following process wastewater generating activities?
Vehicle and equipment cleaning ❑ Yes IN No
Wetting of raw material stockpiles ❑ Yes M No
Mixing drum cleaning ❑ Yes IN No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
t wastewater. Give design specifics (i.e. design volume, retention time, surface area, etc.). [Use separate
sheet(s)]
Note: Construction of any wastewater treatment facilities require submission of three (3) sets
of plans and specifications along with this application. Design of treatment facilities
must comply with requirements 15A NCAC 2H,.0138.
SWPage U-229-080199 1 2 of 4
j

NCG140000 N.O.I.
14) Does the facility use a recycle system?
❑ No
IR Yes
If yes, does the system overflow only during rainfall events exceeding the 10 -yr, 24 -hr rainfall event? ❑ Yes IR No
If yes, provide plans, calculations, and supporting documentation.
15) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
M No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per calendar
year) of hazardous waste?
M No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per calendar
year) of hazardous waste?
IR 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:
16) 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 Article 21 or regulations of the Environmental
Management Commission implementing that Article, or who falsifies, tampers with or knowingly renders inaccurate any
recording or monitoring device.or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a
fine not to exceed $10,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides .
a punishment by a fine of not more than $10,000 or Imprisonment not more than 5 years, or both, for a similar offense.)
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 familia , with the information contained in this application and that to the best of my knowledge
and belief such information is true, complete, and accurate.
Printed Name of Person Signing:. Michael L. Triplette
Title: ! President
(Signature "of
Page 3 of 4
SWU-229-080199
- '�'', a -o
(Date Signed)

NCG 140000 N.O.I.
Notice of Intent must be accompanied by a check or money order for $80.00 made payable to:
i
NCDENR
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
❑ Check for $80 made payable to NCDENR
❑ This completed application and all supporting documention
❑ Copy of county map or USGS quad sheet with location of facility clearly marked on map
Mail the entire package to:
Stormwater and General Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the issuance of an NPDES permit.
Page 4 of 4
SWU-229-080199

:READ-'-IVV�'lX� ECLAMA.TION��SYSTEMS
L EA D IN G...-,-T\H EN D,U-.,S TR -+Y
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F W W X X w w A-
M/X. RECLAMATION
f 100% Recycle of Aggregates
and Slurry
♦ Minimum Fresh Water Usage
♦ Ability to Handle Fiber
• Above Ground Construction
• High Quality Components
♦ Simplicity in Design and Operation
♦ Fully Automatic Control for
Self -Cleaning
SYSTEMS
1-800•

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The EwRO-POO RT
1. Returned ready -mix is poured directly into the
Recycling. Sys.term intake hopper. Sand and stone is swept into the
cess is performed
diagonal screw conveyor while slurry is kept in
suspension in the agitation tank.
he following steps..
2. Clean sand and stone is transported above slurry
level where it is given a final rinse and stock piled
for reuse. (Separation can be performed with
optional screen deck.)
i
f1� 3. Slurry water is metered back to the batch plant
i for reuse by way of a weigh batch system or a
I� magnetic flowmeter. Specific gravity can also be
monitored with optional suspended solids monitor.
4. A storm water and/or process water capture
milli� basin can be added to your plant. This water
can be automatically pumped into your
ENVIRO-PORT system for reuse in batching.
The ENVIRO-PORT system can "use up" this
i� water instead of creating more.
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Main Electrical Panel with ENVIRO-PORT is a complete, above ground system that
Programmable Logic is easy to transport or relocate.
Controller for Automatic
Equipment Operation.
With the ENVIRO-PORT Ready Mix Reclamation System, you will be able to
reclaim 100% of your unpoured concrete, eliminate settling ponds, recover
valuable yard space, clean up your ground water, and increase your profits.
ENVIRO-PORT's patented process and automatic safety features will put you
in the driver's seat.
Each system is a compact, self-contained unit — pre -wired, pre -plumbed,
easy to transport, easy to relocate, easy to service, and easy to expand.
Whatever the size of your fleet, we can build the system that is right for you.
For more information, call 1-800-356-8106 today.
Call 1-800-356-8106
for more information
Member of:
ENVIRO-PORT5 INC.
10953 Dunbarton Road
P.O. Box 175 - Gratiot, WI 53541
1-800-356-8106 - 1-608-922-6264
FAX [phone]
WON
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IONI�EIE
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ASSO�i4M
ENVIRO-PORT5 INC.
10953 Dunbarton Road
P.O. Box 175 - Gratiot, WI 53541
1-800-356-8106 - 1-608-922-6264
FAX [phone]

Specifications for Process Water
Recycle Facility
Caldwell Ready Mix, Inc.
2823 Mission Road
Saw Mills, North Carolina
Trigon Project # 045-00-025
October 2000

SPECIFICATIONS FOR PROCESS WATER
RECYCLE FACILITY
WASHOUT RECOVERY SYSTEM
REVISION 2
CALDWELL READY MIX, INC.
SAW MILLS, N. C.
By: Trigon Engineering Consultants, Inc.
Charlotte, N.C.
October 6, 2000
04500025
SUL
74 53
8��ao YO NA
.a•

01010 SUMMARY OF WORK
Part I. General
1.1 Scope of Work
This specification covers the work necessary to install a washout water recovery system for the
Caldwell Ready Mix, Inc. concrete batch mixing plant. The existing sedimentation/seepage basin
will be removed from operation.
1.2 System Description
This system is designed to treat wastewater generated from cleaning concrete batch truck mixing
drums and from washing the exterior of the batch trucks. It also receives stormwater from the
process area.
Return unused mix is discharged directly to an 8 ft DIA slurry tank. The drum interior is deluged
and the contents are also expelled directly into the reclaim system. The sand and gravel in the
return mix and washout water settle and move out from the center of the slurry tank propelled by
the cyclonic flow induced by the tank agitator. At the perimeter, the sand and gravel are swept
into a screw conveyor and carried up and out of the tank. The sand and gravel are washed in the
conveyor to remove fines and discharged onto a screen deck where they are mechanical screened
into individual stockpiles. The slurry is transferred to the 12 ft DIA agitation tank where the
remaining solids are held in suspension. The slurry is periodically returned to the batch mix
process for recycle to the product.
The wastewater originating from cleaning the batch truck exterior discharges onto a concrete slab
sloped to a shallow settling basin. Most of the solids settle in the basin, which is sloped to allow
removal of the sediment with a front-end loader. The water from the basin is pumped back to the
batch mixer for process use. A portion of the reclaimed water is used in the batch truck makeup
tank for use in adjusting the mix off site.
All stormwater from the truck washing and the process operations areas will be directed to the
settling basin. During 'storm events of greater than approximately 0.50 inches the basin will
overflow to an outfall on the west side of the plant. Stormwater from two other areas are not
routed through the recycle system. Flow from the parking area and run-on from offsite will be
directed to the east outfall. The roof drainage from the garage will be directed to a third outfall.
1.3 Project Description
The project shall consist of backfilling the existing sedimentation lagoon and removing the stock
pile, site grading, construction of slabs and the new sedimentation basin, installation of mechanical
equipment, and site drainage grading for diversion of surface run-off.
Page 1 of 5

1.4 Regulatory Requirements
All work, materials, supplies, and equipment shall be in compliance with local, state and applicable
federal codes and regulations. Final installation shall not commence until all necessary permits
and approvals have been obtained.
1.5 Erosion Control
An Erosion/Sedimentation Control Plan will not be required for the project. However, prior to
construction, proper protection of the nearby stream shall be obtained by installing protective
measures to prevent excessive siltation from impacting the stream. These protection measures
will be maintained throughout the construction process. Any temporary sedimentation basins
constructed during the construction phase shall be maintained in a manner to prevent sediment
from flowing into the stream. Protection features will be removed at the completion of
construction as necessary by removal and disposal of siltatious materials. All denuded areas shall
be properly grassed and mulched as soon as practicable.
Part II. Products
2.1 Concrete
All concrete shall have a minimum of 3,000 psi compressive strength and a slump of 5 inches or
less.
2.2 Equipment
All equipment, pumps, conveyors, hoppers, etc. shall be consistent with the requirements of the
project. The mechanical equipment shall be as manufactured by Enviro-Port, Inc., Gratiot,
Wisconsin or equal. Alll mechanical equipment including pumps, shall be provided by the Owner
and installed by the contractors.
2.3 Reinforcing Steel
All reinforcing steel shall be intermediate grade billet steel, deformed. bar stock, clean and free of
rust and corrosion.
2.4 Backfill Materials
Exterior walls of the recycle facility shall be backfilled with clean, well compacted soil and/or with
flowable backfill material' as manufactured by the on site concrete batch plant.
Page 2 of 5

2.5 Piping
All wastewater piping will be Scheduled 40 PVC pipe and made from Type 1 Polyvinyl Chloride.
Service temperatures do not exceed 140 degrees F. Pipe shall conform to the requirements of
ASTM D-1785. All socket type connections will be joined with primer and solvent cement
complying to ASTM D-2564.
2.6 Valves & Fittings
All wastewater piping valves will be true union ball valves made from PVC Type 1 Grade 1
molding compound. All fittings shall conform to ASTM D-2467 for socket type and ASTM D-
2464 for threaded type.
Part III. Execution
3.1 Definitions
Owner - Caldwell Ready Mix, Inc. Michael Triplette, President
Engineer - Trigon Engineering Consultants, Charlotte, N.C.
Contractor - Parties providing equipment, materials, supplies and/or installation of the same.
Vendor - Any firm and/or party supplying materials or equipment only.
3.2 Construction Management
All work will be performed under contracts, purchase orders, and/or agreements administered by
the Owner. Construction, installation of equipment and start-up procedures shall be supervised
and inspected by the Engineer and any other regulatory authority as required.
3.3 Site Work
The existing sedimentation basin and, concrete spoil pile will be removed to allow installation of
the new system. The existing sedimentation basin will be filled to design grade.
3.2 Construction Management
All work will be performed under contracts, purchase orders, and/or agreements administered by
the Owner. Construction, installation of equipment and start-up procedures shall be supervised
and inspected by the Engineer and any other regulatory authority as required.
Page 3 of 5

3.3 Site Work
The existing sedimentation basin and concrete spoil pile will be removed to allow installation of
the new system. The existing sedimentation basin will be filled to design grade.
3.4 Footings
All footings shall be poured in level trenches cut into natural soil or flowable backfill. Footings
shall contain #4 bars @ 8"o.c. continuous for length of footing trench.
3.5 Slabs
All slabs shall be poured on soil compacted to 95% standard proctor or cured flowable backfill.
Slabs shall be reinforced with #4 bars @ 12"o.c. both ways.
3.6 Walls
All containment walls shall be poured in concrete, 12" thick to the height indicated on plans. All
walls shall have #4 reinforcing bars @ 12"o.c. each way. Wall pours shall be continuous until
forms are filled with nolcold joints. All walls shall be keyed to the floor slabs and to the footings.
3.7 Mechanical Equipment
The mechanical system will be shipped assembled. Installation will include locating and setting
the system, providing water supply and connection to return flow recycle water, and electrical
wiring. The system shall be installed in conformance with the manufacturer's instructions.
3.8 Piping
3.8.1 Aboveground Piping
Piping shall be installed in a neat manner with lines straight and parallel or at right angles and as
shown on the drawings. Run piping so as to avoid interference with other lines and systems. All
work shall be accomplished using the best methods and procedures of recognized pipe fabrication
in a workmanlike manner in accordance with the latest revision of applicable ANSI Standards,
ASME Codes and PPI Standards.
Pipe shall be cut square, not upset, undersized, or out of round. Ends shall be carefully reamed
and cleaned before being installed. Use fittings for all changes in direction.
Pipe supports shall be selected as required to support the weight of the pipe, fittings, valves,
weight of medium transported and weight of insulation covering used. Solvent welded fittings
adequate to withstand 50 psig shall be used at all times for PVC pipe.
Page 4 of 5

3.8.2 Underground Piping
Underground piping shall be laid at a minimum of 18 inches below the ground surface. The
trench shall be excavated to provide a firm continuous and a minimum of 4 inches of fine grained
sand shall be placed to cushion the trench bottom. The pipe shall be covered by sand a minimum
of 2 inches before placing additional backfill. Pressure testing of the underground piping shall be
completed after backfilling and prior to any concrete being placed. Installation of the
underground piping shall also follow the piping manufacturers recommendations.
3.8.3 Encapsulated Piping
Aboveground piping installed within the concrete forms and covered by the concrete shall be
installed as in Section 3.8.1 with supports adequate to hold the piping in place during the pour.
The piping shall be located so that the structural strength of the concrete walls is not significantly
impaired.
Page 5 of 5

CALCULATIONS

CALDWELL READY MIX
Annual Production 1999 24,000 cu yd
Assum;e 200 day/yr active production
Assume 500 hr/yr active production
Production Capacity 200 cu yd/day
Production Utilization 48 cu yd/hr
Maximum
Average 120 cu yd/day
Truck Movements 13.33 events at
9 cu yd per truck
Truck Wash Water 5,333 gpd assume
300 gal per truck internal
Generated
100 gal per truck external
400 gal per truck total
Truck Wash Water 1333 gpd
Generated -External
Concrete Mix Water 4,200 gpd assume
35 gal/cu yd water in mix
Required
Note: All water used in truck washing is processed in the treatment system and
return for use in the mix or reused as wash water.
Only exterior wash water
is routed through the settling basin.
Flow to Settling Basin
Assume truck cleaning takes 2
hrs/day
Avg flow to clarification basin is 11.1
gpm with no stormwater
Settling Basin Area 800
sq ft
Overflow rate 0.014
gpm/sq ft OK <2 gpm/sq ft
Overflow rate (daily) 1.667
gpd/sq ft OK <600 gpd/sq ft
Note: During storm events the rainwater will contribute to the flow
to the settling basin. See following calculations. Production will likely be curtailed
during extreme storm events. Overflow of the basin will occurr during rain
events greater than about 0.5 inches.
CRM-RSYS.XLS 1

CALDWELL READY MIX
Stormwater Contribution to settling basin
Area of Drainage
40000 sq ft
Annual Volume
872,667 gal
Avg Storm Volume
12,467 gal
Basin volume is
14,500 gal
100% paved - assume coefficient is 1.0 for paved area
Assume 35 in/yr rainfall
Assume 0.5 in/day rainfall
Note: Depending on initial volume present the basin should retain a 0.5 inch
rain event.
Peak Volume 149,600 gal Assume 6 in/day
rainfall
Overflow Rates
Settling Basin Width
20 ft
Settling Basin Length
40 ft
Settling Basin Area
800 sq ft
Overflow w/no rain
1.7 gal/day/sq ft
Overflow w/ peak volume
187.0 gal/day/sq ft
CRM-RSYS.XLS 2
OK<600 gpd/sq ft
OK<600 gpd/sq ft

Makeup Water
....... o, Truck Wash External Truck Washout Concrete Batch
Active Process and -qq- Interior �- -� Plant No
Stock files 4,200 gpd
leaves -site
- 1,333 gpd- 5,333 gpd in batch trucks
Settling Basin
14,500 gal
Enviro-Port
Recycle System
F -A
Basis: 120 cu. yd/day concrete production
Note: 4,200 gpd makeup water '
required from on site well
or from stormwater flows Makeup Water
CALDWELL READY MIX, INC.
WASHOUT RECOVERY SYSTEM
PROCESS FLOW DIAGRAM
10/6/00
wrh

CALDWELL READY MIX
Annual Production 1999 24,000 cu yd
Assum;e 200 day/yr active production
Assume 500 hr/yr active production
Production Capacity 200 cu yd/day
Maximum
Truck Movements 22.22 events at
Truck Wash Water 8,889 gpd assume
Generated
Truck Wash Water 2222 gpd
Generated -External
Production Utilization 48 cu yd/hr
Maximum
200 cu yd/day
9
cu yd per truck
300
gal per truck internal
100
gal per truck external
400
gal per truck total
Concrete Mix Water 7,000 gpd assume 35 gal/cu yd water in mix
Required
Note: All water used in truck washing is processed in the treatment system and
return for use in the mix or reused as wash water. Only,exterior wash water
is routed through the settling basin.
Flow to Settling Basin
Assume truck cleaning takes
2
hrs/day
Avg flow to clarification basin is
18.5
gpm with no stormwater
Settling Basin Area
800
sq ft
Overflow rate
0.023
gpm/sq ft OK <2 gpm/sq ft
Overflow rate (daily)
2.778
gpd/sq ft OK <600 gpd/sq ft
Note: During storm events the rainwater will contribute to the flow
to the settling basin. See following calculations. Production will likely be curtailed
during extreme storm events. Overflow of the basin will occurr during rain
events greater than about 0.5 inches.
CRM_MAX.XLS 1

CALDWELL READY MIX
Stormwater Contribution to settling basin
Area of Drainage
40000 sq ft
Annual Volume
872,667 gal
Avg Storm Volume
12,467 gal
Basin volume is
14,500 gal
100% paved - assume coefficient is 1.0 for paved area
Assume 35 in/yr rainfall
Assume 0.5 in/day rainfall
Note: Depending on initial volume present the basin should retain a 0.5 inch
rain event.
Peak Volume .149,600 gal Assume 6 in/day
rainfall
Overflow Rates
Settling Basin Width
20 ft
Settling Basin Length
40 ft
Settling Basin Area
800 sq ft
Overflow w/no rain
2.8 gal/day/sq ft
Overflow w/ peak volume
187.0 gal/day/sq ft
CRM_MAX.XLS 2
OK<600 gpd/sq ft
OK<600 gpd/sq ft

Makeup Water
...... ._, Truck Wash External
Active Process and ,
2,222 gpd
Settling Basin
14,500 gal
Basis: 200 cu yd/day concrete production
Note: 7,000 gpd makeup water
required from on site well
or from stormwater flows
Truck Washout
Interior
8,889 gpd
Enviro-Port
Recycle System
CALDWELL READY MIX, INC.
WASHOUT RECOVERY SYSTEM
PROCESS FLOW DIAGRAM
Concrete Batch
Plant
Makeup Water
7,000 gpd
leaves site
in batch trucks
10/6/00
wrh

MANUFACTURER'S LITERATURE

TM
ENVIROMPORTx
Ready -Mix Reclamation ;Systems
ENVIRO-PORT SYSTEM 14-2250
Basic Unit - 2,250 gallon capacity with processor control.
Concrete Processing Rate:10Yds. per hour.
SLURRY TANK CONSTRUCTION: Tank Walls 1/4" A-36 plate, Tank
Floor 1/2" A-36 plate. Agitator Drive 10 IIP input, 8382 NORD Direct
Drive Speed Reducer.
SCREW CONVEYOR CONSTRUCTION: Outer Tube 14" O.D. x 3/8"
Wall, Flighting 13" x 22° x 3/8" A.R. 400 Flighting, Drive Unit 10 HP
input, BROWNING 215 Speed Reducer.
SLURRY PUMP: 71/2 HP 1150 R.P.M. input, DEMING 3M, 10" Impeller
with fresh water seal flush.
SHIPPING WEIGHT:15,000 lbs.
ENVIRO-PORT SYSTEM 24-2250
Basic Unit - 2,250 gallon capacity, with processor control.
Concrete Processing Rate: 30+ Yds. per hour.
SLURRY TANK CONSTRUCTION: Tank Walls 1/4" A-36 plate, Tank
Floor 1/2" A-36 plate. Agitator Drive 10 HP input, 8382 NORD Direct
Drive Speed Reducer.
SCREW CONVEYOR CONSTRUCTION: Outer Tube 27" x 27" x 1/4"
Wall, Flighting 23" x 22" x 1/2" A.R. 400 Flighting, Drive Unit 15 HP
input, BROWNING 315 Speed Reducer.
SLURRY PUMP:7 1/2 HP 1150 R.P.M. input, DEMING 3M, 10" Impeller
with fresh water seal flush.
SHIPPING WEIGHT: 18,800 lbs.
ENVIRO-PORT 2,250 GALLON AGITATION TANK
8' Diameter x 6' High.
SLURRY TANK CONSTRUCTION: Tank Wall 1/4" A-36 plate,Tank
Floor 1/2" A-36 plate, 5 HP Drive Unit.
SHIPPING WEIGHT: 8,500lbs.
ENVIRO-PORT 5,500 GALLON AGIIAATION TANK
12' Diameter x 7' High.
SLURRY TANK CONSTRUCTION: Tank Wall 1/4" A-36 plate,Tank
Floor 1/2" A-36 plate, Drive Unit 7 1/2 HP input, 8382 NORD Direct
Drive Speed Reducer.
SHIPPING WEIGHT: 14,000 lbs.
ENVIRO-PORT 6,900 GALLON AGITATION TANK
13' Diameter x 7' High.
SLURRY TANK CONSTRUCTION: Tank Wall 1/4" A-36 plate,Tank
Floor 1/2" A-36 plate, Drive Unit 7 1/2 HP input, 8382 NORD Direct
Drive Speed Reducer.
SHIPPING WEIGHT: 14,800 lbs.
10953 Dunbarton Road, P.O. Box 175, Gratiot, W1 53541
Phone: [phone] • 608-922-6264 • FAX` 608-922-3370
28'10*
5,500 GAL. AGITATION TANK
j
000 0 000
000 0 000
0000000
000 0 000
000 0 000
000 0 000
< 10, >
X12'
OPTIONS
Flush Boom System For Slurry Washout — Each boom complete with all
necessary plumbing, including a 2" actuator ball valve and an on/off switch.
3" Maglite Magnetic Flowmeter — For pulse output.To control slurry pumping
to batch plant.
ABCO 36" x 72" Single Deck Vibrating Screen — For use with 14" auger system.
ABCO 48" x 96" Single Deck Vibrating Screen — For use with 24" auger system.
Automatic Back -Flushing of Slurry Line — All valves and controls to back-
flush slurry line, including timers and relay box.
Mass Flowmeter — With Datamate 2000 programmable keypad, for display of
slurry density, solids rate, mass rate, temperature, total, volume, and flow counts.
(Overall Width = 12'4")
I
3-7-
7-6-
(Overall
'7"7'6"
Factory Installed, Replaceable Kryptane Flighting Tips — For 24" auger system.
Factory Installed, Replaceable A.R. 400 Flighting Tips — For 24" auger system.
12' Wide Discharge Splash Panel — In place of a 8' wide panel. Suggested for a
2 truck discharge.
17' Wide Discharge Splash Panel — In place of a 12' wide panel.
Suspended Solids Monitor —To read the amount of solids in slurry being
pumped to Batch Plant.
Factory Installed Automatic Grease System — For Positive Lubrication.

TM
ENVIROmPORTu-
Ready-Mix
Reclamation Systems
♦ 100% Recycle of Aggregates and Slurry
♦ Minimum Fresh Water Usage
♦ Ability to Handle Fiber
♦ Above Ground Construction
and Transportable
♦ High Quality Components
♦ Simplicity in Design and Operation
2. Clean sand and stone is removed from I
mix and stock piled for reuse. Sand and
stone can also be separated with
optional ,, 'screen deck.
4. Your plant storm water and
Z
process water can also be
metered and reused by the
Enviro-Port System (It can
"use up" this water instead
3. Slurry water is
of creating more!).
metered back to
the batch plant
for reuse.
6,17111-SDO-.3S6-$/06
formore informotion
ppy/T/Vj! F54LUT�04/s
to mixer truck woshout
ondconcre to rec%imPro6/ems
I. Returned concrete
is poured into the
Enviro-Port intake
hopper.
U
n
ENVIRO-PORT, INC.
P.O. Box 175 - Gratiot,W1 5354
1-800-356-8106
1-608-922-6264
FAX [phone]

State of North Carolin
Department of Environment,
Health and Natural Resources -
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
December 8, 1993
Mr. Michael L. Triplett, President
Caldwell Ready Mix, Incorporated
Post Office Box 461
Granite Falls, Nortli-Carolina 28630
Dear Mr. Triplett:
®[=-HNF1
Subject: Permit No. WQ0007169
Caldwell Ready Mix, Inc.
Washout Recovery System
Wastewater Recycle System
Caldwell County
In accordance with your application received October 26, 1992, we are forwarding herewith Permit
No. WQ0007169, dated December. 8, 1993, to Caldwell Ready Mix, Incorporated for the subject
wastewater recycle system.
This permit shall be effective from the date of issuance until November 30, 1998, and.shall be
subject to the conditions and limitations as specified therein. Please` pay particular attention to the
monitoring requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within 30 days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter 150B of North..
Carolina General Statutes; and filed with the Office of Administrative Hearings, P.O. Drawer_ 27447;
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding: ;
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Ms. Angela Y. Griffin at 919/ 733-5083.
Sincerely, n ��
A. Pres o Howard, Jr., P.E.
cc: Caldwell County Health Department
�►A�sheille+'_R-egio 11®ffice;W,�ater-Quality7Seetion� t5
Haynes Engineering Associates
Training and Certification Unit DEG 1 1993
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] MAX912`
n An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post=consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT, OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
RECYCLE SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Caldwell Ready Mix, Incorporated
Caldwell County .
FOR THE
construction and operation of a 4,000 GPD wastewater recycle system -consisting of a truck wash out pad,
a hopper for separating aggregates, mechanical screw screening conveyors, stockpile slabs, primary
separation slab, three (3) clarification basins ( approximately 9,090 gallons, 8,525 gallons and 22,740
gallons), and all necessary pumps, valves and appurtenances to serve Caldwell Ready Mix, Incorporated's
truck washing and concrete operation with no discharge of wastes to the surface waters, pursuant to the
application received October 26, 1992 and in conformity with the project plan, specifications, and other
supporting data subsequently filed and approved by the Department of Environment, Health and Natural
Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until November 30, 1998, and shall be
subject to the following specified conditions and limitations:
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. The facilities shall be properly maintained and operated at all times.
4. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the. Permittee, a formal permit request must be
submitted to the Division of Environmental Management accompanied by an application
fee, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of the request -will be considered on its merits and may or may
not be approved.
5. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.

6. In the event Arai Lhe facilities fail to perform satisfy_ !'. ly, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as
may be required by this Division, such as the construction of additional or replacement
wastewater treatment or disposal facilities.
7. The Asheville Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in-place
inspection can be made. Such notification to the regional supervisor shall be made during
the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.
8. The sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
9. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
10. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
11. Diversion or bypassing of untreated wastewater from the treatment facilities is prohibited.
12. Any monitoring deemed necessary by the Division of Environmental Management to insure
surface and ground water protection will be established and an acceptable sampling
reporting schedule shall be followed.
13. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
14. The Permittee or his designee shall inspect the wastewater recycle facilities to prevent
malfunctions and deterioration, operator errors and discharges which may cause or lead to
the release of wastes to the environment, a threat to human health, or a nuisance. The
Permittee shall keep an inspection log or summary including at least the date and time of
inspection, observations made, and any maintenance, repairs, or corrective actions taken
by the Permittee. This log of inspections shall be maintained by the Permittee for a period
of three years from the date of the inspection and shall be made available upon request to
the Division. of Environmental Management or other permitting authority.
15. Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the recycle system at any reasonable time for the purpose
of determining compliance with this permit; may inspect or copy any records that must be
kept under the terms and conditions of this permit; or may obtain samples of groundwater,
surface water, or leachate.
16. The annual administering and compliance fee must be paid by the Permittee within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as specified by.15 NCAC 2H .0205
(c)(4)
17. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
19. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other goverment
agencies (local, state, and federal) which have jurisdiction.
2

18. A set of approplans and specifications for the subj&roject must be retained by the
Permittee for the life of this project.
19. Noncompliance Notification:
The Permittee shall report by telephone to the Asheville Regional Office, telephone number
[phone], as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a basin or tank; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-
pass directly to receiving waters without treatment of all or any portion of the
influent to such station or facility.
d. Any time that self-monitoring information indicates that the facility is not in
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
20. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202. Once
the facility is classified, the Permittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50% complete.
3

21. The .permittee east six 6 months prior to the ex ira hof this permit, shall request its
C) P P
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
'ermit issued this the 8th day of December, 1993-
NORTH
993
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT.COMMISSION
A. Preston oward, Jr., $.E., Director / Q
Division of -Environmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0007169
0

ermit No. WQ0007169
december 8, 1993
3ngineer's Certification
as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
)roject, for the
Project Name
Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature Registration No.
Date
5

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JldLU UI INUI U I vaIvill I"
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
1 � •
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
3/20/2000
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
MICHAEL L. TRIPPLET �1%1
CALDWELL READY MIX, INC-WASHO
PO BOX 461
GRANITE FALLS NC 28630 k-�: ;'' MAR 2 3 2000
SUBJECT: NOTICE OF VIOLATION AND REVOCATION FOR NON PAYMENT 6, -
PERMIT NUMBER W00007169 NW zR QUA I"
.CALDWELL READY MIX, INC-WASHO ��Ffr�1'fL![�f,� JG7,� ��1ON
IC-
CALDWELL COUNTY
Dear Permittee:
Payment of the required annual administering and compliance monitoring fee of $300.00 for this year has not
been received for the subject permit. This fee is required by -Title 15 North Carolina Administrative Code 2H.0105, under
the authority of North Carolina General Statutes 143-215.3(a)(1), (1a) and (1 b). Because this fee was not fully paid within
30 days after being billed, this letter initiates action to revoke the subject permit, pursuant to 15 ncac 2H.01 05(b) (2) (k)
(4), and G.S. 143-215.1 (b) (3).
Effective 60 days from receipt of this notice, subject permit is hereby revoked unless the required Annual
Administering and Compliance Monitoring Fee is received within that time. Discharges without a permit are subject to the
enforcement authority of the Division of Water Quality. Your payment should be sent to:
N.C. Department of Environment and Natural Resources
Division of Water Quality
Budget Office
1617 Mail Service Center
Raleigh, NC 27699-1617
If you are dissatisfied with this decision, you have the right to request an administrative hearing within Thirty (30)
days following recipt of this notice, identifying the specific issues to be contended. This request must be in the form of a
written petition conforming to Chapter 1506 of the North Carolina'General Statutes, and filed with the Office of Administrative
Hearings, Post Office Drawer 27447, Raleigh, North Carolina, 27611-7447. Unless such request for hearing is made or
payments_ received; revocation shall be final and binding. If you have any questions, please contact:
�Mr. F_orrest Westall, Asheville Water Quality_Reglon-1 Supervisor, (828)_251 6208.
:Sincerely,
�., ,
Kerr T. Stevens
cc: Supevisor, Water Quality Permits and Engineering Unit
Asheville Regional Office
County Health Department
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Non -Discharge Branch Permitting
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
MICHAEL L. TRIPPLET
CALDWELL READY MIX, INC-WASHO
PO BOX 461
GRANITE FALLS, NC 28630
Dear Permittee:
0 -
Am
E3 FEN FI
February 1.9, 1998
Subject: PERMIT NO. WQ0007169
CALDWELL READY MIX, INC-WASHO
CALDWELL COUNTY
Our files indicate that the subject permit issued on 12/8/93 expires on 11/30/98. We have not
received a request for renewal from you as of this date.
A renewal request shall consist. of a letter asking for permit renewal, the appropriate permit
application processing fee, and four (4) copies of a completed application. For permitted facilities with
treatment works, a narrative description of the residuals management plan, which is in effect at the
permitted facility, must also be submitted with the renewal application. Applications may be returned to
the applicant if not accompanied by the processing fee or are incomplete.
Please find attached a copy of the processing fee schedule, as found in 15 NCAC 2H .0205(c).
The processing fee for your facility is based on the type of facility and/or the permitted flow. Processing
fees for land application of residuals are based on the total acres of land permitted. The processing fee
does not apply to any farmer who submits an application which pertains to his/her farming operation._
The check or money order should be made payable to the North Carolina Department of Environment
and Natural Resources (DENR).
The Environmental Management Commission adopted rules on October 1, 1990, requiring the
payment of an annual fee for most permitted facilities.- You will be billed separately for that fee (if
applicable) after your permit is -approved.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

6 - %
Please be advised that this permit must not be allowed to expire. You must submit the renewal
request at least 180 days prior to the permit's expiration date, as required by the 15 NCAC 2H .0211.
Renewal requests received less than 180 days prior to permit expiration will be required to pay the full
NEW APPLICATIONS/ MODIFICATION/ LATE RENEWALS fee rather than the reduced TIMELY
RENEWALS WITHOUT MODIFICATIONS fee. Failure to request a renewal at least 180 days prior
to the permit expiration date and/or operation of a facility without a valid permit may result in the
assessment of civil penalties. NCGS 143-215.6 allows for the assessment of Civil penalties up to
$10,000 per violation per day.
The letter requesting renewal, along with the completed Non -discharge Permit Application and
the appropriate processing fee, must be sent to:
Permits and Engineering Unit
Division of Water Quality
Non -Discharge Branch Permitting
P. O. Box 29535
Raleigh, North Carolina 27626-0535
If you have any questions concerning this matter, please contact Ms. Nancy Owens at 919/ 733-
5083 extension 574.
Sincerely,
Kim . Colson, P.E., Supervisor
Non -Discharge Branch Permitting Unit
cc: ,.Asheville -Regional Office
Central Files

State of North Ca ina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt,,Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Michael L. Triplett, President
Caldwell Ready Mix, Incorporated
P. O. Box 461
Granite Falls, North Carolina 28630
A4
WWI
IDEHNF1
January 14, 1997
- Subject: NPDES Stormwater Permit Application
Caldwell Ready Mix Corp.
Return #838 j
Application No. NCG140228�, g'
Caldwell County i sx t JAN i 199
Dear Mr. Triplett: I
On March 14, 1996, the Division of Water Quality received your Notice of Intent for
NPDES Stormwater General Permit coverage under NCG140000 for stormwater discharges from
the subject facility.
In discussion with Bill Mills of the Stormwater Group concerning the Notice of Intent, you
advised that stormwater runoff from your facility discharges to a large basin at this facility which
operates under Permit No. WQ0007169 as a non -discharging system. Our Asheville Regional
Office has recently visited your plant and has advised that due to the non -discharge system which
receives your stormwater, this facility does not have a direct discharge to the waters of the state and
does not need 'a NPDES permit. Based upon.these factors your Notice of Intent is being returned
to you without any further processing actions herewith. Your application fee of $400, is being
refunded to you under a separate cover.
If you have questions concerning this matter, please contact Bill Mills of our Stormwater
Group (919 / 7.33-5083 ext. 548).
Sincerely,
4A,
Bradley Bennett, Supervisor
Stormwater Group
Enclosu
cc: Asheville Regional Office
Permits and Engineering
Central Files
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

State of North. Carolina
Department of .Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Asheville Regional Office
MEMORANDUM
TO:
THROUGH:
FROM:
SUBJECT:
EDEHNR
WATER QUALITY SECTION
Bil-I ,
Sto
For
Reg
Jim
Ash
January 7, 1997
Supervisor
ice
Caldwell Ready Mix Concrete
Hudson
Caldwell County
In response to your memorandum (received October 29, 1996)
concerning a stormwater permit for subject facility, I visited
the site on January 5, 1997. Information gathered during the
inspection revealed that Caldwell Ready Mix is operating a non
discharge system for stormwater. Consequently, the facility does
not need a stormwater discharge permit.
The facility currently holds Non -Discharge _ Permit Number
WQ0007169 and appeared to be operating substantially in
compliance with the Permit's requirements.. One deviation from
the permit was noted; the facility's owner had not installed the
recycle equipment described in the permit.
The employee onsite (Mike) at the time of inspection stated that -
there had never been a discharge from the basin receiving both
stormwater and water from equipment rinsing. Observation
revealed no -evidence.of overflows from the basin.
Sand, gravel and other settled materials are reportedly dredged
from the -basin approximately twice per year. Dredged materials
are given t(o individuals for us on driveways and roadways.
Interchange Building, 59 Woodfin Place �M FAX [phone]
Asheville, North Carolina 28801 N%f CAn Equal Opportunity/Affirmative Action Employer
Voice 704-251-6208'50% recycles/ 10% post -consumer paper

Bill Mills
January 7, 1997
Page 2
into the ground within a couple of days. Such percolation seemed
possible since the area draining to the basin was small and the
dikes forming the basin were above grade on three sides.
Apparently, sufficient freeboard exists to handle the Company's
washwater during the period required for stormwater percolation.
Caldwell Ready Mix is operating in compliance with the
requirements of Non -Discharge Permit Number WQ0007169 (except for
having constructed recycle equipment). Since the permit will
expire next year, DWQ should not force the permittee to obtain a
modified non -discharge permit at this time.
Regional Staff will recommend removal of references to recycle
equipment at the time of permit renewal in 1998. Since the
facility does not discharge stormwater, a general permit for
stormwater.will not be required.
Your attention to this matter is appreciated. Please contact me
if additional information is required.
% ft

0
t ber 22 1996
Watery Q ualit Section 9,
1 IEVI����GR11iys
REGlO�,rgfC„ G�
Memo To: Forrest Westall
Regional Engineer, AsY eville Regional Office
From: Bill Mills
Stormwater Group
Subject: Caldwell Ready Mix Concrete
Hudson
Caldwell County
We have pending a NOI for a Stormwater permit from Caldwell
Ready Mix, in Hudson. The NOI indicates no discharge of stormwater.
I called Mr. Triplette and discussed where his stormwater drains and
whether he had a point source discharge of stormwater from the
existing operations. He explained that all of the runoff goes to the
rear of the property into a huge basin from which there is no
discharge except seepage. He also holds non -discharge permit no.
WQ0007169 that describes a system of basins and pumps for
treatment and reuse of the washwater from this plant. I asked him
about that system and he advised that they never built that system,
it all looked too complicated. He sends his washwater from the
trucks and equipment to the same large basin from which there is
apparently no discharge. About every year or two he sends a
dragline or backhoe of some type down there and cleans the sand
and stone out of the basin.
If this facility needs a discharge permit for stormwater and/or
washwater, the NCG1400000 permit can cover it. The GP has
allowance for the discharge of both stormwater and for discharge of
rinse water associated with vehicle and equipment cleaning from
these ready mix plants. If he is effective operating a non -discharge
system for stormwater that is not a problem, there is no permit
required for the stormwater systems that operate without a point
source discharge up to the 25 yr, 24 hr. storm. I would appear that
some alteration to WQ0007169 may be in order for the washwater.

Please advise concerning your recomendations as to whether a NPDES
permit is appropriate for this facility. (He already has one permit
from us he is not using, I don't want to compound things. by issuance
of the incorrect permit. Your assistance in this matter is
appreciated.
Attachments
NOI
WQ0007169
cc: Carolyn McCaskill

j I
PPPP
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'�_Xo � 4coq:�'
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
NOTICE OF INTENT. REQUESTING. COVERAGE UNDER
GENERAL PERMIT NO. NCG140000
STORMWATER DISCHARGES associated with activities classified as Ready Mixed Concrete
[Standard Industrial Classification Code (SIC) 3273].
Complete this Notice of Intent (NOI) and mail to the following address:
North Carolina Division of Environmental Management
Water Quality Section, NPDES Group
P.O. Box 29535
Raleigh, North Carolina 27626-0535
The NOI must be accompanied with a general permit filing fee of $400.00 and a copy of a county
map or USGS quadwith the location of the facility clearly marked on the map. The check should
be made out to the North Carolina Department of Environment, Health, and Natural Resources.
to
Portable ready mixed concrete facilities may begin operation upon submittal of a Notice of Intent
(NOI) and implementation of a stormwater pollution prevention plan. Portable plants are defined
installation for the of dedicating at least 75% of all materials to a
as a temporary plant purpose
specific job or a plant which continuously occupies a site for a period of six months or less. New
permanent installations are required to submit a NOI 90 days prior to beginning industrial
,v
activities.
C. cv'
y
I. General Facility Information
1. Answer the following questions by indicating the appropriate response (yes or no)
with a check mark in the space provided to the right of each question:
a. Does this facility have any NPDES Permits? Yyes no
b. Does this facility have any Non -Discharge permits (ex: recycle permits)? _yes Xno
c. Are vehicle maintenance activities occurring on site? _yes no .
d. Are any best management practices employed for stormwater control? _ yes no
e. Is this an existing facility? Xyes no
f. Is this facility a Hazardous Waste Treatment, Storage, or Disposal facility? _►es apo
g. Is this facility a Small Generator of Hazardous Waste? ___yes kno
h. Does this facility use molds to produce cast concrete products? _yes Ino
2. List the permit numbers for all current NPDES and Non -Discharge permits for this facility.
NOI 14
Page 1 of 3 Pages

3 . ' If this is a proposed facility, list the date operatianAs-sehe�uled to begin :
4. How many stormwater discharge poin"'tches, pg g, ch�(nnels, -etc. that convey stormwater
.from the property) does the facility ha e? �lJ UIV
5. What is the name of the body or bodie of water c , stream, river, lake, etc.) that the
facility stormwater discharges end up in? a 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).
II. Facility Owner/Operator Information
Provide the following location information for the owner/operator of the facility. This may or may
not be the. same as the facility location information.
Name:
Address: -1134E C'G�f',C/��' V(4 --V 1,44"
City: aX14 1 /T e- State:. 41 e
Zip: / 3 G Phone: ( 7 $/ Sf"";
CALDWELL READY M!X INC.
�
III. Facility Location Information � P.D. BOX41
GRANITE FALLS, N.C. 28630
Fill in the appropriate requested facility location information in the spaces provided. Do not write
"same as above" or leave any blank spaces.
Facility Name: w4c� A /,Y 2' A/ e -
Contact:
Address: liSSicrtl
City: /j s 0 ,f State: 'y e_ Zip: ae6 3�
County:/j W /, L Phone( 7v oma, ) 19
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).
Narrative Description of Facility Location:
T /,�c�iY) �/T� y T�" J�/}iL S GN ✓ S 3'..`Z / .1/C A Tf/. ��=� M ! s. �: s To jV/7g5ZFCTllc� ni
6� /h/SS/CN /t0,4,0 Ti4, .(E r T %'!,/ AIT is o:/
IV. Industrial Activity
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary
industrial activity at this facility: SIC Code Nc� / yc oco
NOI 14 Page 2 of 3 Pages

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Provide a brief narrative description of the types of industrial activities and products
manufactured at this facility:
V. Certification
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 the application and that to the best of
my knowledge and belief such information is true, complete, and accurate.
Signature
print or type name of person signing above
date
title
North Carolina General Statute 143-215.6(B)(2) provides that: Any person who knowingly makes
any false statement, representation, or certification in any application, record, report, plan or other
document files or required to be maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article, or who falsifies, tampers with or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or
maintained-under:Article 21 or regulations of the Environmental Management Commission
implementing' .that Article, shall be guilty of a misdemeanor punishable:by a fine not to exceed
$10;000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001
provides'a punishment by a fine of not more than $10,000 or imprisonment not more than 5 years,
or both, for similar offense.)
NOI 14 Page 3 of 3 Pages