Jim Pierce From: Jerry Holder [JHolder@HNTB.com] Sent: Tuesday, February 10, 2004 9:25 AM To: Jim Pierce Subject: RE: Omniftight Leasehold Improvements We'll take care of it. ----Original
Message--From: Jim Pielt:e [mailto:jpierce@d.addison.tx.us] Sent: Tuesday, February 10, 2004 9:24 AM To: Jerry Holder SUbject: RE: Omniflight Leasehold Improvemenl5 Jerry: I trust you
will send the file. Thanks, Jim Pierce, P.E. Assistant Public Works Director P.O. Box 9010 Addison, TX 75001-9010 972-450-2879 --Original Message---From: Bill Dyer [mailto:BiIl.Dyer@Staubach.rom]
Sent: Monday, February 09, 2004 12:26 PM To: Jenny Nicewanderj Jim Pierce Cc: jholder@hntb.almj Lou 8guezabal; Lisa Pyles; lingleengrs@earthlink.net SUbject: Omniflight Leasehold Improvemenl5
The Schoelkoeff people are looking into making paving repairs to their lease premises (where Omniflight is located along Airport Parkway). The will have a surveyor on site as early as
this week to do boundary survey update and topo survey. They are looking to repave their parking along the north side adjacent to Airport Parkway, their east side parking, and their
south ramp. They are requesting a copy of the CAD lile for the road construction so they can match up to the road properly. Could you please send the file to the attention of Brian Lingle
@lingleengrs@earthlink.n!il! . In addition to the parking to the north, they are wanting to expand their parking to the east which may include closing up the open storm drainage along
their east boundary line. Also they are wanting to address a drainage problem on their south ramp where the runoff is going into the hangar after years of pavement buildup. According
to Mr. Lingle, a portion of the ramp actually encroaches the lease line by maybe as much as 10-12'. Beyond this point the paving stops at the open drainage ditch paralleling Taxiway
Sierra. If they repave the ramp and correct the slope, they want to know how the City wants the drainage ditch addressed. I told them when they were ready, I would arrange for meeting
with the powers to be. Bill Dyer Real Estate Manager Addison Airport 16051 Addison Road, Suite 220 Addison, TX 75001 Main: (972) 392-4650 Fax: (972) 788-9334 Direct: (972)392-4856 Mob:
(214) 207-3638 hllJ.dyer@staubach.com www.staubach.coll) 4/20/2004 
Message PageZofZ lbis e-mail and any files or attachments transmitted with it contains Information that is confidential and privileged. lbis document may contain Protected Health Information
(Pill) or other information that is intended only for the use ofthe individual(s) and entity(ies) to whom it is addressed. Ifyou are the intended recipient, further disclosures are prohibited
without proper authorization. Ifyou are not the intended recipient, any disclosure, copying, printing, or use ofthis information is strictly prohibited and possibly a violation of federal
or state law and regulations. Ifyou have received this information in error, please delete it and notifY Hamid Kbaleghipour at 972-450-Z868 immediately. Thank you. lbis e-mail and any
files transmitted with it are confidential and are intended solely for the use ofthe individual or entity to whom they are addressed. Ifyou are NOT the intended recipient or the person
responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing, or copying
ofthis e-mail is strictly prohibited. 4120/Z004 
James Pierce From: David Wilde Sent: Friday, April 10, 1998 8:44 AM To: Keith Thompson Cc: James Pierce Subject: Omni-Flight pad drain Keith, After talking with BAR about the sewer tie-ins
in that area south of the Omni-Flight test cell bldg., I feel that we should Vactor out the drain pit to verify what kind ofpiping it has. We may also need to run the FMC hose up the
pipe from the ditch to the drain. Gama, with BAR, suggested that there may be a dual outlet in the drain, with the main drain going to sanitary, and an overflow going to the storm drain.
I think we just need to check it out as thoroughly as possible. Dave 1 
__________________________ _ "-I I I 􀁾􀀠---􀁾􀀭􀀭fI DATE I JOaNO4-?-1lrADDisoN ATTENTION REPublic Works I Engineering 7/l1.v'V'-I) ill􀁾.::i 􀀼􀀻􀀬􀀬􀁾􀀠􀁾􀀠,16801 Westgrove. P.O. Box
144 <:' A IJ Addison, Texas 75001 Telephone: (214) 45()'287 1 • Fox; (214) 931·6643 I GENTLEMAN: 􀁾􀁴􀁴􀁡􀁣􀁨􀁥􀁤􀀠o Prints WE ARE SENDING YOU o Under separate cover via ______the following
items: o Shop Drawings o Plans 0 Samples 0 Specifications 0 ________________o Copy of letter o Change order COPIES DATE NO. DESCRIPTION /U/WUJ fl. 0",jrt'--i (,,/1 􀁾􀀠'" f I THESE ARE
TRANSMITTED as checked below: o For approval 0 Approved as submitted o Resubmit ____copies for approval o For your use o Approved as noted o Submit copies for distribution o As requested
o Returned for corrections o Return corrected prints o For review and comment 0 o FOR BIDS DUE 0 PRINTS RETURNED AFTER LOAN TO US COPYTO Ifenclosures are not as noted, please notify

(972) 4.iO-2871 16801 Westgrovtl PUBlJC WORKS DEPARTMENT January 23, 1998 Mr. Martin R. Rincon Assistant Director of Industrial Safety Omniflight Helicopters, Inc. 15809 Addison Road
Dallas, TX 75248 Re: Helicopter Wash Pad Drain Dear Mr. Rincon: This is to propose a remedy for the helicopter wash pad area outside of your existing hanger. The wash pad area has a
drain that is connected to the sanitary sewer (wash water should go to the sanitary sewer) but this drain also receives rainfall runoff during wet weather. Our objective is to keep rainfall
runoff out of the sanitary sewer system. I have attached a sketch that shows the installation of an additional drain that is connected to a storm drain. The proposed drain cover would
cover the sanitary sewer drain sump at all times except when washing aircraft. If you like this idea, please have your Engineer prepare plans for the installation and submit them to
Bruce Ellis, Department of Public Works for review. If acceptable, we will then issue a permit for construction. I am also enclosing a copy of a pertinent "Best Management Practice"(BMP)
that I received from our Phase I Environmental Assessment consultant for your infurmation. The BMP refers to "dry washing" aircraft which I am not familiar with -but could be applicable.
I trust this information is helpful. Please call me at 972-450-2879 if you have any questions or require additional information. Very truly yours, Town of Addison 􀁾􀁾􀁾􀁾􀁾􀀠 􀁾􀁾􀁾􀁮􀁴City
Engineer cc: John Baumgartoer, P.R, Director of Public Works Mike Murphy, P.R, Assistant Director of Public Works Enclosures 
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JAN 15 '98 10: 51Af1 CAMP DRESSER MCKEE COM Camp Dresser & McKee Inc. Dallas DATE: ;/IS/trrl COMPANY: Tow,,", ",.f Add ,'..ro1AJ FROM: ?aVl. tfOr f liAl e JOB NO./DESCRIPTION: (OS.5
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f'fA.-f... f'YC\C f,'(' '€.-et>iN1 oI-elle 􀁉􀁾􀁦􀀮􀁰􀁤􀀠(.by-tfo.rh-f/-e rJ t4-+{aV\. {c. A} (" f'>e> r 􀁾􀀮􀀠.:z..-r: to"" kav -Ii!... "'..... '1 rIA 􀁾f-fON ...I /rli" tis, E:.-gJv
(. tA--I '€.. C\ 􀁾􀀠􀁾􀀠!I , NUMBER OF PAGES (Including cover sheet): FAX NUMBER: 1,).J-YSO 􀁾􀀲􀁴􀁦􀀮􀀳􀀷􀀠CAMP DRESSER 8. McKEE INC. One Glen Lakes 8140 Walnut Hill Lane Suite 1000
Dallas, Texas 75281 Phone: 214/346-2800 Fax: 214/987-2017 NO'l'E: Ifthere are any problems with this fax transmission, please calL 
APPROACH TO EXlSTIMG FACIUTY ACTMTIes: OpeTat/rmal Consfderat1(lns Implement the following to \l1e maximum 􀁥􀁸􀁴􀁥􀁮􀁾􀀠pra<::tica.bie. Good HousekJ/Ieping • Use "illY" waShing and
sut!a.c:e preparatiOl'l techniques where feasible. Seventl prudi.lct:ii are p_enlly marketed which am being used 10 <:Iean even !he largest aircraft Remove all rnalsrial,.; (i.e., drippingG
and residue) using vacuum1nethods. Dispose of properly. • Provid& _ndafY oontaintnent for contaiMn;: Qf washing and steam cl8lUting additives. • Use pigstmals to caver catch besins during
wash activil1. • Uw l:lloclegnldable 􀁾􀁦􀁲􀁥􀁥QQletllenl$, D Ksiip washing area deiilll iiIlId 􀁾􀁥of waste. • • Include praper signage \0 prohibit1118 lfisc/large of waste ollslnlC
the drall"lS. OJ Colkid and discharge was" water to an approved treatment facility (SQI1ita1y sewer system) through a permil!«J connection, KEY APPAOACHES .. Used!ywashitlg 1eOhniqu.s
.. Recycle wash waler or discharge appropriately • Provide1IBining S04-1 
P.3/Jl1 Physical SIts lJss.ge • CQn$lder off·site commercial washing and steam c:\"alling where feasIble. Uting applOpriate cII''laciblias will d9aease1l1e wasil! generated on-site.
• Use designated wash areas indoors., oroutdoors cove",," and benned where fsasJb/e, to prevent conramir\alion of storm watw by contact with wastes. . Struetutal Ccntrols • 1n.s1al1
gate valves at catch basins for use during washing activities to facilitate 111& COIIeC1ion ofthe wasI1 water and prevent discharge til the storm Cltainage system. • Filter and recyda
wash waf.,.. wh""" 􀁰􀁾􀀮􀀠Maiiitrmance • Conduct betm repalr and patdling. • Inspect. clean. and maintain liiijmPII. oillwater separatol$, and on-lite treatment and recycling III'Iits.
Ccntlngerlt:y Response .. Maintain adequate suppRes 01 spill IIIOponse equipment and materials in accessible locations near areas where !!pills may be likely to oCQur. Inspection antiTraining
.. Provide the appropriate level 01 employee training in the follOWing areas: spilll&liiponse and prtMInlion,. stonn water poSUIion preventiOn education (see SC-10 for$1Qm! water pollution
eduealion approaches). right-to-know aWaI1IIless lraining, al'IeI ha2ardous malaria'" management • DevelOp regular maintenance and 􀀱􀀱􀁬􀀤􀁰􀁾􀁣􀁕􀁯􀁮􀀠programs for oiVwaler liieparatQIS.
• Charadarlze wastes derived from ctilliNater 􀁐􀁊􀁑􀁾􀁤􀁥􀀠REQUIReMeNTS: iii Capital COl;ts vary depending on measul11s Implemented. LOW COST: $500-1,000 lor bemrc:onstrucdOIl. MEDIUM
COST: $5.00()'20,OOlJ lorplumbing modifiC8tions (including t .... routing ditehar;eto the sanitary sewer land installing a simple sump). HIGH COST: $30.000-150,000 for ()I1-1ita trealment
and recyQin9. 1/OiM costs increase with illCtllasing inveslmont LIMITATIONS: 1/SOme wastewater agencies I1W require pretl9stment and monitoring of wash water disdlWgH to1I1e $8I1i1ary
sewer. 1/Steam cleaning and de-greasing operatioM can gene!ilt9 significant pallll1ant concenlralians which may reqllire permitting. rnotIiltlring, pretreatment, and 􀁩􀁬􀁬􀁾􀁏􀁊􀁜􀀤􀀮􀀠Theile
comp"anC8 issues will vary 10 lOcal ag9/lcY jurisdiction. 
REl..EVANT RULES AND REGULAl1ONS;\ . •GA § 3914-6.03 -Water Use Classifications and Waler Oualit1 StandaJds .40 OFf! 110.3 Dischalge at Oil .40 OFR 117.3 Detem'llnalion at Reportable
Ouantities for a Hazanfous Substance ,40 OFR 122-124 NPOes FiegLllations for Storm water Oiscl1arges .40 CFR 401 EfIIuent Umitalion Guidermes ! ·􀁾􀀧􀀮􀀧􀀠..... ;: , 
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Mr. Martin R. Rincon Assistant Director of Industrial Safety Omniflight Helicopters, Inc. 15809 Addison Road Dallas, TX 75248 Re: Helicopter Wash Pad Drain Dear Mr. Rincon: This is to
propose a remedy for the helicopter wash pad area outside of your existing hanger. The wash pad area has a drain that is connected to the sanitary sewer (wash water should go to the
sanitary sewer) but this drain also receives rainfall runoff during wet weather. Our objective is to keep rainfall runoff out of the sanitary sewer system. I have attached a sketch that
shows the installation of an additional drain that is connected to a storm drain. The proposed drain cover would cover the sanitary sewer drain sump at all times except when washing
aircraft. If you like this idea, please have your Engineer prepare plans for the installation and submit them to the Department of Public Works for review. Ifacceptable, we will then
issue a permit for construction. I am also enclosing a copy of a pertinent "Best Management Practice"(BMP) that I received from our Phase I Environmental Assessment consultant for your
information. The BMP refers to "dry washing" aircraft which I am not familiar with -but could be applicable. I trust this information is helpful. Please call me at 972-450-2879 if you
have any questions or require additional information. Very truly yours, Town of Addison James C. Pierce, Jr., P.E., DEE Assistant City Engineer cc: John Baumgartner, P.E., Director of
Public Works Mike Murphy, P .E., Assistant Director of Public Works Enclosures