ST9505-CS 950503 (2)May 3, 1995
Texas Natural Resource Conservation Commission
Mr. Melvin Lewis
Regional Director
6421 Camp Bowie Boulevard Suite 312
Fort Worth, Texas 76116
Re: T.A~C.B. Acct. ID.# 92-1710-J
Following are thc procedures for thc production of concrete for this
portable concrete plant
O1. Raw matra'iai is delivered to the site by trucks
02. Material is storod in stockpiles or silos.
03. Stockl~led material is carded to the plant by wh~l 1~.
04. Dust emmi~sion from this operation are controlled by water
apl'inkling.
05. Silo stored material is carried to the weigh hoppers by
enclosed augers. Dust emmi~ion from thi~ operation is
controlled by venting to the cent~ bag house.
06. Weighed material and water are discharged into the central
mixing drum and throughly m/xed. Dust emmi.qsion
from this operation are controlled by venting to central bag
house.
07. Mixed material is discharged into open top dump trucks.
08. Dump truck deliver the material to the spreader.
Should you require additional information please call.
Sincerely,
Supervisor
L. H. Lacy Company
General Contractors
214/357-0146
"Ooality Construction for over 65 Years"
10888 Shady Trail
P.O. Box 541297
Dallas, Texas 75354-1297
NOTI~CATION OF INTENT TO MOVE
A PERMITTED TANSIENT FACILITY
8.
9.
10.
Company Name:
Address:
Person/n charge:
Telephone number:
Type of facility:
L. H. Lacy Company
P. O. Box 541297 Dallas, Texas 75354-1297
AHen G. Blankenship
(214) 869=1967
Portable Concrete Plant
a. Account identification number: 92-1710-J
b. Permit Number: 23178
Quantity and type of air pollution control equipment: Baghouse and water sprinking
Location plant is to be moved from(city, county, exact location description):
Location plant is to be moved to (city, county, exact location description):
See Map Attached
Area map showing location of new sim:
Proposed date for start of constn~tion:
Proposed date for start of operation:
Attached
Expected length of time at new location- 15 workino days
Has a copy of this notification been sent to the regional offic~ of the
Texas Air Control Board having jurisdiction over the area to which th/s
plant is to be moved?
YES XX NO
It is herby agreed that the facil/ty identified herin will not be constructed at the proposed site or any
other site until authorization is received from the Executive Director of the Texas Air Control
BoarcL
~am¢ ,Allen G. Bllnkenship
Title , Supervisor
TABLE 20 CONCRETE BATCH PLANTS
Page One
1. What type of plant? (check one)
Permanent XXX Portable
2. Whet type of hatching vv~l be accomp~bed? (Check one)
Wet (ro'cary mix~n2cks) __ Dry XXX Central Mix
3. Mesimum Produc~on Rat~s: 250 cyds/hour cyds/year
Does the f~cifity operaM at night Yes XXX No
CemenUFlyasWAd~e siJo Information
a) How many silos ~ ~ plant have? 2
b) V~Alat is lhe volume of each s~o? 2{~ ~ cu.fL ~q~ ~ cu.ft __ cu.ft.
c) Explain method of loading silo(s) m~fnatfc transfer
d) is each silo equipped with over load wlflling de~-~is? XXX Yes No
Please deserve: ~ amp Horn
e) What type of abaMment de~ce Hill be used off silo vent(s)? vented to n~ sv~m
f) Ifbagh~__~__ am used on lhe vent(s), foruehdev~esubmitthefolowingd~aand attach aTab~e 11.
L Flowmte 50~ cfm Tomlfibqarea 963 ~t
Air to dolh ra0o 5,19 Oudet pain lowering grld~cf
Me. od of cteaninD bags mechanical pneumalic
Automalic (not manual) sequenced denning? XXXYes No
II. Flowrate cfm Totaifil~area s~t
Autoread= (not m4muM) ~peflced Mmming? Yes No
III. Flow rata cfm Tol~l flledng area ~
Automaffc (not manual) sequenced deaning? Yes No
7. List afl additives or ad-mix.es and maximum usage rates at your facility:
Daravair, WRDA, Air 40, LR
TABLE 20 CONCRETE BATCH PLANTS
PAGE 2
8. W'~ the sand and aggregate be washed prior to de~ve~/at you facility ~ yes , no?
9. The number of acres or square feet which may be covered by aggregate saN:kl:~ies: 1 acre ?
10. Explain the method of moving aggregate from storage piles to the mixing area Cm detail):
11. Wiil w,~r sprays be used at the f~gowiflg locations?
a) S~ocgq~iles ~ ~ ~
b) ~~ ~ ~ ~
c) C~~~ ~ ~ no
d)~ ~ ~
12. ~~be: ~&Cl~d p~ & V~
13.~~~: ~ B~~T~~A~~
Weight (tom)
Vechile Tyl~e Speed Empty Full
Raw aggre~ Snmh _l.f. 40
Loadem 5 mah 23 29
Cement Tank~ ~i mah 1~ 40
Flyash Tankem 5 mah 15 40
Additives 6mah t...~ 40
Mix Trucks 5 n~h 1_.~0 2~
Wheels per round trip (mbs or feet)
Paved Unmved
.1.1. 3O0R
4 ,IS0 It
.11. 3e01t
.18 3O0ft
1_0 if use~ ~
1...~0 < 1 mile
TABLE 11
FABRIC FILTERS
Point Number (from Flow Diagram)
Manufacturer & Model No. (if available)
Dusty, Dustless
Name of Abatmcnt Device
Cloth Filtering Bn~house
Type of Particulate Controlled
Cement~ Sand~ Aggregate and related Dust
Flow Rate (scfm)
Design Max Averse Expected
GAS STREM CHARACTERISTICS
Cas Stream Particulate Grain Loading
Temperature (F) (grain / scf)
ambient 5 .01
Pressure Drop
(mo)
4.55
Micron Range
0.0 0.5
0.5 1.0
1.0 5.0
5 10
10 20
ov~ 20
Filter Velocity Bag Diameter
(scfm/ft2 of cloth)
6: 1 4"
Water Vzpor Content
of~.mumt SU~m (hp)
N/A
PARTICULATE DISTRIBUTION
(By Weight)
Fan Requirements
(fl3/mi.)
20 6500
Inlet Outlet
100 % 100 %
99.98 % 99.98 %
% %
% %
% %
% %
FILTER CHARACTERISTICS
Bag Length Number of Bags No. of Compartments
(n) in ba~otm
8' 0" 160 1
Bag Rows will be Walkwa~ will bc provided b~ banks of bags:
smgg~ Strai~..ht YES NO
Filtering Matmial: Polyester Fume
Describe Bag Cleaning Method and Cycle: Air operated~ Mechanical vibration
Capitol Installext Cost $ 7,000.00 Annual ~ting Costs
ADDmONAL INFORMATION
On seperate sheets attach the following
~ Details regarding principle of operation
B. An assembly drawing (Front and Top View) ofthe abatement device dimenisioned and to scale
clearly showing the design, size and shape.
If thc device has bypasses, safety valves, etc., include in drawing and specify when such
bypasses ar~ to b~ used and under what conditions.
IEAGOVlLLE
DALLAS AREA COVERAGE
COPYRIGHT 19~1~ by MAPSCO, INC. -- ALL RIGHTS RESERVED
ELUS CO
COP
AIRLINE
~IANGLER
N
SCALE IN MILES
0 le V~ ~
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G
NoHh Lake
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· Mapeco, Inc.
6LIF.
North Lake Plrk
33
RD 7
IRVING
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Arist~acmt
CONTINUED ON /~AAP
DETAIL MAP SECTION
STARTS ON INDEX PAGE 202
SCALE IN FEET
1000 2000 3000
BOOK PAGE ],019
EXISTING BELT LINE RDAD
PROPOSED EXECUTIV~XExxDRIVE