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ST8502-CS 860425GINN, INC. April 25, 1986 Mr. David Cromer Lone Star Gas 301 S. Harwood Dallas, TX 75201 Re: CONSULTING ENG 16" Lone Star Gas Pipeline Alterations Adjacent to Moore Road Improvement Project Coppell, Texas Dear Mr. Cromer: Mr. Larry Jackson, City Attorney for the City of Coppell, and our office have reviewed your March 23, 1986 correspondence on the above referenced subject. In your letter you requested that the City authorize Lone Star Gas to pursue alterations to your existing 16" gas transmission line with the actual construction costs being reimbursed by the City. The amount requested per your letter was not to exceed $38,208.00. As a result of our review, we met with you on April 23, 1986, to resolve the issues. This correspondence shall clarify the City's position on this matter. It appears the original 16" gas line was installed around the year 1915 and improvements were made to this utility around 1980. The improvements consisted of installing a new 16" pipeline adjacent to the existing line and upon its completion, the existing line was abandoned. The improvements extended from approximately Sandy Lake Road to Belt Line Road. The 1980 improvements should have been installed according to Federal Standards for installing the pipe that were in effect at that time. Specifically, we are referring to the Department of Transportation's, Title 49, Part 192 of the Code of Federal Regulations, "Transportation of Natural and Other Gas by Pipelines: Minimum Federal Safety Standards," which became effective November 12, 1970, and has been amended thereafter. With the assistance of Lone Star Gas personnel, field investigations were done to determine the cover on the 16" line. Investigations showed the present 16" line was never installed with the minimum 36" cover requirement (see Federal Regulations 192.5 and 192.327 attached) at the particular street crossings referenced in your March 23, 1986 letter. Therefore, the City of Coppell feels it has no obligation to finance any utility relocation to insure the pipeline has adequate cover. We suggest that Lone Star Gas, at their expense, make whatever alterations are needed for their utility to comply with the Federal Regulations. These modi- fications should be coordinated with the street improvements for Moore Road. 16135 Preston Road · Suite 106 · Dallas, Texas 75248 · Phone 214/386-6611 Mr. David Cromer April 25, 1986 Page 2 We had previously been informed that on some sections of the pipeline a thicker concrete pavement slab would be sufficient in lieu of making alterations to the pipeline. Please confirm in writing these locations. (It is our understanding that the locations were Raven Lane, Pheasant Lane, Bethel School Road, and the west alley north of Villawood.) Also, please specify width, thickness, and strength requirements desired. The proposed normal concrete pavement shall be 6" thick with a 28-day compressive strength of 3000 psi. We hope that this will provide you the information you need to pursue this matter further. Please call if we can be of any assistance. Sincerely, Kevin Peiffer /st Enclosure cc: Mayor Lou Duggan Ed Powell Larry Jackson Frank Proctor Wayne Ginn ASME GUIDE FOR GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS - 1980 FEDEKAL RULES AND REGULATIONS PART 192 ORIGINAL VERSION 192.505 ~t, rength tcat requirements for steel pipeline to operate at a hoop stress of 30 percent of mole 8MYS. 192.507 Te~t requirements for pipeline to operate at a hoop str~s lees than 30 percent of BMY$ and above 199.509 Te~t requirements for pipelines to operate at or below 100 p.sJ.g. 193~11 'Dest require~nenta for service lines. 192~15 Environmentad protection and smfet y requirementS. 192~51'/ Records. Svbport K---Uprmi~ 192.551 19:/.553 O~neral requirements. 192.555 Uprattn~ to a p~essure that will produce a hoop stress of 30 per- cent or more of 5MY8 tn wteel plpelln.es. 192.557 Uprating: steel plpelince to a pres- sure that wlil produce · hOOp stress less than 30 percent of sMYS: plastic, ca~t iron, and duc- tile Iron pipelines. S~bl~rl L---Ol~mtlens lg2.~Ol ~cope. 192.60~ ~ssential~ of operatln~ and main. tenance plan. 192.607 Xnittal determination of cl~m~ loca- tion and confirmation or lishment of maximum allowable operatin~ pre,ute. 199.809 Charge tn clesm Iocatlon: required study. 19~.611 Change in ~ loeatloll: flrmation or revixion of mattmum Conttnuin~ imrveille~ee. ]~m~b~cY ln~sst~alSo~ of fail,4re~. sure: steel of plastic pipeltnm~ Maximum allowable operati~ sure: ht~h-pre~ure distribution 193.~ Max~num and minimum allowabl~ operating pre~ur*: low-prsssu~ distribution 192.63~ Odorlzation of 193.63T Tapping pipelines under pre~ure. 1~8.~9 Purging of Subfled k~.--,~.lointe~mece ProcedUres 192.?01 ~ope. 193.?0~ USher al. 192.?0~ Transmission lines: p~trollin~. 19~.'/0~ Transmission lines: mafker~. 192.?09 Transml~ton tin~: recordkeeptn& 193.'/11 Tran~ni~lon linm~: ~mnet~l quirementm for repair procedure. 1B3.'/18 Tranzmi~ton lines: permanent ~eld repair of tmperfection~ and damage. 193.'/15 Tt~tsmi~ton lines: per~ent pair of weldL 199.TIT ~ton lines: permanent field ~epatr of leaks. 192.'/19 Transmission linem: t~tin~ of 192.T31 Distribution ~tem~: patrolin~. 192.T3~ Distribution systems: lealt~e sur- veys and procedures. 192.735 Test requirement for reinstating ~eTvtce line~. 192.72T Abandonment or lna~:tlvation of faotlitiss. 192.72~ Compre~or at,lions: procedures for ga~ compressor units. 192.731 Compressor stations: inspection and testing of relief services. ~92.733 Compre~or stations: isolation of equipment for maintenance a~terettons. "Maximum allowable operating pre~- sure" means the maximum presmu, e at which a pipeline or ~et~nent of · pipe- "Municipality" means a city, county, or any other political subdivision of a ~tete. "Operator~ me~.s · person who en- ~ages in the transportation of Sas. "Person" me~ns any individual, firm, Joint venture, partnerahip, corporation, association, State, municipality, coopera- tive sa~ociation, or Joint stock association. snd includes any trustee, receiver, as- sl~nee, or personal regresentative thereof. "Pipe" means any pipe or tubin~ used Appendix A--Metert~le incorporated by ref- in the transportation of gas, Illclud~g erence, pipe-type holder~ Appendix B~ualtflcatlon of pipe. Appendix C--~ualtflcation of welders for low etre~ level pipe. A~rrl~oarr~: The provielon~ of this Part 193 issued under 49 U.S.C. 16'/1 et seq. SubpoH A~General § 192.1 Scope of part. (a) ~ part prescribes minhnum safety requirements for pipeitne fa~ilities and the transportation of gas. including pipeline facilities and the transportation of ass within the limits of the outer con- ttnental shelf as that term is defined in the Outer Continental 8hell Lands Act (43 U~.C. 1331).. (b) This part does not apply to the satherin~ of Was outside of the followtn~ areas: ¢1) An area within the limits of any (3) Any desiwnated residential or com- ~m or ~hoppin~ c~lter, or commllKity development. § 192~ 'q)istribution Line" means · pipeline other than · ~athorin~ or tra.~l~on line. "Oas" means natural ~ flammable Was, or ~as which is toxic or corrosive, "Oatherln~ Ltno* means a pipeline that transports Sas from · current pro- duction facility to a tr~usmiasion line or "High pressure distribution system" means · distribution system in wlttch the ~as pressure in the main is hi,her than the pressure provided to the cation listed tn section I of ApPendix B of this part. · ~ow-pressure distribution system" means a distribution system in which the the same as the pressure provided to the customer. "Main" means · d~ribution line that serves as a common source of supply for more than one service line. '~aximum actual operatin~ pressure" means the maximum pressure that oc- curs durtn~ normal operations over · period of 1 year. "Pipeline" means all ~ of thoee physical facilities through which gas moves tn transportation, lncludin~ pipe. valve~, ~nd other aopurtens~co attached to pipe. ~o _mpreesor units, meterln~ sta- tions, rekulator stations, deltvery sta- tions, holders, and fabricated assemMtes. "Ptpeline facility" means new and existin~ pipelines, rights-of-way, and any equipment, facility, or butldtnf used in the transportation of fas or tn the treatment of 8~as durtnf the course of tor ccucemed. ltne that transports Was to a cnstemer meter set a~emh~ fresh yield ztren~th ~selfled as amlnimum tn (~) For ~eel pf~e m&nuf~ctured tn ac- mtn~d tn accordance with ! 19~.lOT(b). "Btate" mcans each ef the ee~eral other than · eathe~ Bae, that-- (1) Tmnsport~ ea~ from eeater or store~e facffity; (]) Ope~tor at ~ hoop ~eas percent or more of BMr'B; m- ¢~) Ttm~orts ~ wtthin· storage of eas by pt~eltne or the storage of tn of ~ectin~ Inter~tate or fore~n (&) ~ lecatlon is detenntned b~ ~ect4on. The cla~ L_~_-_-_-,tlou u~tt is l-ndle leneth of p~ellne. Except as pro- vide~ in pe~a~raphs (d)¢3) and (f) of this secuon, the class locatio~ is deter- mined bF the bulldtn~ tn the class leoa- tioa unit. For the imrpoee~ o! this ASME GUIDE FOR GAS TRAN~. .$SIONAND DISTRIBUTION PIPING SYSTEMS - 1980 section, each separate dwelling unit in a multiple dwelling unit building is counted as a separate building intended for human o~cupancy. ih) A Class 1 location is any cla.~ lo- c~tion unit that has 10 or less buildinl/s intended for human occupancy. ¢c) A Class 2 location is any cla.~s lo- cation unit that has more than l0 but less than 46 buildings intended for hu- man occupancy. rd) A class 3 location is-- (1) ~ Ciass loc~tloU unit that has 46 or more buildings intended for human occupancy; or (2) An area where the pipeline lies within 100 yards of any of the ii) A building that is occupied by 20 or more persons du~ng normal use. iii) A small, well-defined outside a~ca that is occupied by 20 or more persons durin~ normal use, such as a playground, recreation area, outdoor theater, or other pl~ce of public assembly. (e) A Class 4 location is any class loc~tion unit where buildings with four or more stories above ground ~re prevalent. (f) The boundaries of the class loca- tlorm determined in accordance with pa.,~raphs (a) through (e) of this sec- tion n~y be adjusted as follows: (1) A Class 4 loc~tion ends 220 yards from the nearest bulldin~ with four or m/~re stories ~bove ~und. ¢2) When a cluster of buildlr~s ino tended for human occupancy requ/r~ 2~0 ye~ds from the nearest bUfldtn_e tn FEDI-..,-~L RULES AND REGULATIONS PART 192 ORIGINAL VERSION ¢1) Aboveground structures must have open ven~ near the floor level. (2) ]Belowground structures must have forced ventilation that will prevent any accumulation of ~as. (3) Relief valve 'discharge vents must be located so as to prevent any accumu- lation of gas at or below/round level. (4) Special precautions must be taXen to provide ~dequate ventilation where excavations are made to repair an under- ground system. ¢c) For the purpose of this section, petroleum gas means pro~)ane, butane, or mixtures of these gases, other than a gas air mixture that is used to supple- ment supplies in a natural &.as distribu- tion system. § 192.13 Ccneral. (") NO person may operate a segment of pipeline that is readied for service after March 12, 1971, unless that pipeline has been designed, irmtaUed, constructed, in/ttally inspected, and initially tested in accordance with this part. (b) No person may operate a segment of pipeline that is replaced, relocated, or otherwise changed ~fter November 12, 1970, unless that replacement, relocaUo~ or change has been made in accordance with this part. (c) F~ch operator shall maintain, modify as appropriate, and follow the plans, procedures, and pro~mms that it (1) It was manufactured in accord- ance with a listed specification: (2) It mect~ the requi~-~e~ts of par~.- graphs II-A through II-D of Al~end/x B of this l~rt; or (3) It is used in accordance with para* graph ~c) of this section. (b) Used steel pipe is qualified for use under this p~rt (1) X~ was n~nufactured in accord- ante with a listed ~q~eciflcation and it meets the requirements o! p~ra~raph rr-C of Appendix B to this l~rt; (2) It meets the requirements of pa/a- graph II-A through II-D of Appendix (3) It Ires been used in an existing line of the same or higher pressure and meets the requirements of para~T~ph IX-C o! Appendix B to ~ part; or (4) It is used in accordance with p&r~,q'~ph (c) of th~ section. lc) New or nsed steel pipe may b~ used at a pressure re~ultin~ in a hoop stress o! less than 6,000 p~.l. where no close lng or clo~e bendin~ is to be done. if visual examlr~tion indicates tlmt the pipe is in ~ood condition and that it is free of ~pllt seams and other defects that would cause leakage. If it is to be welded, steel pipe that has not been m~nufactured to a listed epeciflc~tion must also ~ the weld~bilit~ tee~ pre- scribed in l~r~r~h n-B of Appendix (d) New ateel pipe t21~t ha~ been cold exl~ndod must comply with the mandy- lnthe clmt, or. J 1~.7 Ineorport t/on by re ference. ia) An~ documente or p~rte thereof incorpomted b~ refere~oe in ~ ~ · rea ~ of this re~lation as though set out in full. lb) All incorporated documents are 'avaAlable for lnsveotlon in the Office o/ Pipetine ~fetF, ~ 10% 400 Blxth Street 8W, Washington, D.C. Zn addi- tion, the documents are available at the addresses provided in Apl~endlx A to this l~rt. (c) The full titles for the publications are provided in Appe_n~l= A to this ~ Each ~therin~ line must comply with the reqtflr~ments of this pm,rt m~)licahle § 192.11 Felroleum gas syslem~, (a) No operator may ~ petro- leum ~as in a system tlmt serves 10 or more customers, or in a system, any por- tion of which is located in a public place (such as a highway), unless that system meets the requirements of this ~ and of NFPA Standards No. 56 e~! No. 59. In the event of a oonflict, the require- ments of this p~rt prevail. (b) ~'_ h petroleum ~s system cov- ered by pare~aph (a) of this aectiou must comply with the foUowin~: imperative sense. (b) In tkis part-- (l) Words knportin~ the sinful&r clude the plur&l; (2) Words ImporUnf the p~ral m* clude the sineuisr; and (3) Words Importln~ th~ n~zcul~ eender include the ~pinin~. ~ stlbpa~ pl*escrJ~ mtntn~m quirements for the selectien and cation of pipe and components for use in must b~ (a) Able to maintain the structural tntesflty of t~e pll~__t__n_e under temper° atu~e and other environmental conditions t~tt may be anticipated; (b) Chemically compatible with ~ Was that they tnmsport a~xd with other material in the pipeline with which they are in contact: (c) I~talified in accordance with the applicable requirements o! thts subparto § 192.$S Steel pipe. (a) New steel pipe is qualified for use under th~ part Om) Used cast imm er uaed ducttle Iron ptpe b ~ f~ ~ ~ ~ ~ ff ~n ~ws ~t ~ ~ ~ ~d ~d ~ b ~ ~ ~ ~M (1) ~ ~ ~ ~ f~ ~ ~e or ~ p~; ~ (~) ~ m ~~ ~ ~rd- S 192.S9 ~ ~ (t) ~ ~ ~ ~ q~ for (1) Zt ~ ~~ ~ ~r~ (2) It ~ ~ ~ ~ ~ ~h ~ct ~ ~ ~~. (b) U~ pluUc pi~ ~ q.a~m~ for m ~d~ ~ p~ ~ (1) zt m~ ~ ~~ ~ ~ (2) xt ~ ~t ~ ~ ~m which c~t ~ ~ ~a~: (3) Xt h~ ~n~ ~ ~ (4) I~ dim~lo~ a~ ~1 wi~n ~e ~ler~ ~ ~e ~M~ ~ w~ it w~ m~t~; ~d (5) Xt ~ f~ ~ ~le ~fec~. { 1~2.51 ~r N~. toper pi~ ~ q~ed for ~ ~d~ ~cordance wi~ a ~ ~on. 322 ASME GUIDE FOR GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS - 1980 FEDERAL RULES AND REGULATIONS PART 192 ORIGINAL VERSION § 192.313 Ben& a~l ~ (a) ~ch field bend in steel pipe. other than a wrinkle bend m~de in ex~ord~nce with ! 192.315, must comply with the following: (1) A bend may r/ot impe~ the serv- tceabiUty of the pipe. (2) On pipe oontainln~ a longitudinal weld, the lon~ltudlrm] seam must be as near as practicable to the neutral a~s of the bend. ¢3) A bend on pipe that is 12 inches, or mo~, in nominal diameter must not deflect the pipe more than 1~* in any length of pipe equal to the diameter. (4) l~or pipe more than 4 inches in nominal diameter, the difference bet~ecn the maximum and minimum diameter at a bend nmy not be more than 2~ per- cent of the nominal dlametm'. (b) Each circumfertmtial weld of steel pipe that is subjected to stress during bending must be nondestructively t~sted. (c) Wrou~ht-stesl welding elbows and transverse ~nents of thee elbows may not be used for chan~es in dtr~tion on steel pipe that is 2 inches or more in d~neter unless the arc length, as measo ured along the orotch, is at lcast 1 inch. (d) Each bend, other than a wrinkle bend made in a~cordance ~tth ! 19~.315, must have a smooth contour and be free of mechanical dam~e. § 192.$15 Wrinkle ~& h ~el (a) A ~n~le ~ ma~ not be made ~m ste~l PIPO to be o~rated at a pressure that produces · hoop ~ of SO ~t. or more, of 8MY~ CO) ~ch w~nkle bend o~ ~eel pipe must o0mpi~ with the following: (1) The b~nd must not have an~ sharp (2) When measured ~lon~ the crotch et the bend, the wrinkles must be a dis- lance of at ]east one pipe diameter. (3) O~ pipe 16 inchss or la4'~er ~am~ter. the bend n~y not hsve · fiection of more than 1~° for e~ch (4) On pipe containing a longitudinal weld the lon~it~a~l s~am must be as near as practicable to the neutral of the bend. (a) Each transmis~on line or main must be protect~i from washouts, floods, unstable soil, landslides, or othor haz~ds that may cause the pipe to move m' to ~ustain abnormal loads. (b) Each transmission line or main that is constructed above ground must be protected from accidental damage by vehicular traf~c or other similar c~uses, etther by bel~ placed at a safe distance from the tra~c or by installing bar- ricades. § 192.219 In~allat|on or plp~ in · Ca) When installed in a ditch, each transmission Line that is to be operated at a pre~sure producin~ a hoop str~s of 20 percent or more of SMYS must be in- stalled so that the pipe fits the ditch so as to minimize stre~es and protect the pipe coating f~m damage. Co) F~ch ditch for a transrais~n Itne ~ m~in must be ba~Jttled tn a manner tt~t-- (1) Provides firm support under the pipe; ~nd (2) Prevents dam~e to the pipe and pipe co~tin~ from equipment or from the ~ n~tertalo § 192.S~t l~t·ll·tion of pla~tk pipe. (a) Plastic pipe must be i~,,talled be- low ~round level. Cb) Plastic pipe that is installed in vault or ashy other below grade enclosure must be completely encased tn gas-tight meta~ pipe and fittings that are ~de- quatelE protected from corrosion. (c) Plastic pipe must be installed so as to minimize shear or tensile stresses. (d) Thermoplastic pipe thai; is not encased must h~ve a mintmum w~ll thtckness of 0.090 inches, ezcept that pipe with ~rt outside diameter of 0.8'/5 inches or less may have a rntnln~ulll thtckness of 0.062 inches. (e) Flastic pipe that ts not enca~ must have an electrically conductive wire or other me~ns of locating the pipe while it is under~round. (f) Plastic pipe that is being encased must be in~Tted into the ceain~ pipe in a manner th~ will protect the plustic. The lcedin~ end of the plastic must be ~ ~ ~ed en a transml~on line or ,,~-~ tmd~r a ratlroad or b~hw~, Ca) The ~ m~t be deserted to (b) If there t~ · ix~blilty of ~ater (e) If the ends of an unrented cazln~ aze sealed and the ssalin~ ~ strong able ope~tin~ prss~tre of the pipe. the ~ must be deel~ned to hold th~ pressure it ~ stress level of not more than '/2 perc~t o! 8MY8. (d) If ~ents aze installed on a casin~, the vents must be protected from the weather to prevent water from entering the casine. § 192.32S Unde~u~l clearance. (S) Each tr~_r~n1~ion line must be installed with at least 12 inches of clear- ance from any other under~round struc- ture not a~soclated with the transmis- sion line. If this clearance cannot be tained, the transmission line must be protected from damage that n~ht result from the proxJmit~ of the other structure. (b) Each main must be installed with enough clearance from any other under- ~round structure to allow proper maln- ten~nce and to protect a~atnst damage that might result from proximity to other structures. (c) In addition to meetin~ the re- quirements of paragraph (&) or (b) of this section, each plastic transmission line or main must be installed with suf- ficient clearance, or must be insulated, from any source of heat so a~ to prevent the heat from impairing the ~ervicea- b~lity of the (d) Each pipe-type or bottie-type holder must be installed with a ~l~tmum clearance from any other holder, as pre- scribed in J 192.1'/5(b). (a) Except M provided in paragraph (c) of this section, e~ch buried transmis- sion line must be tnst~ed with a mini- mum co~er us follows: (b) Except a~ pr~tded in (c) and (d) oJ' this section, each bm'ted main must be Imtalled with at le~t 24 inche~ of cover. (c) Where an tmder~round structure prevents the installation of · tzanmms- sion 1~ or main with the nflnimum ~over, the tr&nmninion line or main be inst&Ued with less cove~ 1~ it is vided with &ddith)md protection ~o with- (d) A ~ m&y be instefled with Imf 8rate or ¢1) u-tlMbbel · n~nlmum Covor or ¢~) l~vtmt that mainl be inltlned lines; and (3) Providss adequate~ tm' forces. Subparl H---C~leme~ ~elers. Regulators, and Service Lines § 192.$$1 Scope. meters, sorylce refuhtors, 0ervlee linm, nections to mains. § ].02.$55 ~ meters and refu- lator~: Joeatlon. (a) Each mete~ &nd service regulator, whether inside or outside of a btttldin~, must be Installed ~n a readily acce~ible lOCation and be protected from corrosion and other dam~e. However, the up- stream re~lator in a s~tes may be buried. (b) Each service re~u]ak)r installed within a bulldin~ must be located as near as pracLical to the point of service line entrance. ¢c) Each meter installed within · bulldin~ must be located in a ventilated place and not le~ than 3 feet from any source of i~nition or any source of heat which might dam~e the meter. (d) Where feeble, the upstream reg- ulator in a series mu~t be located out. de the building, unless it is located in a ~eparate meterinl or reamlating 331 ASHLAR CONTRACTING COI AN BOX 713 LEWISVILLE, TEXAS 75(~7 214/436-5509 March 28, 1986 Ginn, Inc. 16135 Preston Road, Suite 106 Dallas, Tx. 75248 Attn: Mr. Kevin Peiffer RE: Moore Road Improvements ~/'~1~/ 16" Gas Line Location ~. ~ Carter Drive · .l.~ ~'Christi Lane ~ ~ /~Station 6+13 .a~ / ' Raven Street ~ T' ~~Station 9+30 Dear Kevin; This letter is in response to your letter of March 18, 1986. Our project manager, Oan Mill and a Terry Sulls with Lone Star Gas Transmission probed the gas line locations in question the morning of February 25. Orommer and Associates who is performing our surveying, calculated the elevations at these same locations that same afternoon. Immediately following the calculations of the elevations, Oan verbally gave the data to your inspector, Reuben Martinez. Elevation ~ 463.96 489.81 !,~o' 498 l0 ~'~'~' 502.27 ~'~ 504.12 ~'~' The latest information that we have recieved from Lone Star Gas is that they feel that the line should only be lowered at Christi Lane. The other locations can be worked with. Since the individuals with Lone Star Gas that you copied with the aforementioned letter to me on March 18, have been aware of the elevations for some time, I trust an expediant decision will be made. Please advise me of the determination that is reached. Sincerely, George D. Miller Vice President