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Home My WebLink About1981-08-04 Regular Meeting AGENDA CITY OF GRAPEVINE, TEXAS REGULAR CITY COUNCIL MEETING TUESDAY, AUGUST 4 , 1981 AT 7 : 30 P.M. COUNCIL CHAMBERS - 413 MAIN STREET I. CALL TO ORDER ,��-., II . INVOCATION: Mike Darnell, Pastor Metroplex Fellowship III. CITIZENS REQUESTS AND/OR MISCELLANEOUS REPORTS IV. CONSIDERATION OF THE MINUTES Meetings of July 21 & 23 , 1981 V. OLD BUSINESS A. City Council to consider an application sub- mitted by Ms. Diane Wilson for the relocation of a house and a subsequent resolution. B. City Council to consider a report from the engineering firm of Freese & Nichols pertain- ing to water and sewer facilities to serve the northeast portion of the City. C. City Council to consider a resolution relative to entering into a contract with the City of Coppell for the purpose of providing water and sewer services to the proposed Airport Business . Park. D. Mrs. Sharron Spencer, Chairman of the Planning �'�` and Zoning Commission, to present the Commis- sion' s final recommendation relative to the update of the City' s land use and thoroughfare plan. VI . NEW BUSINESS A. City Council to consider authorizing the City Staff to advertise for bids for conversion kits and compressors for natural gas fuel systems for City vehicles. B. City Council to consider a resolution authorizing the City Staff to apply for a grant pertaining to police lake patrol. C. City Council to consider a resolution authorizing the City Staff to apply for a grant pertaining to a Crime Prevention Officer. D. City Council to consider a resolution authorizing �-r� the City Staff to apply for a grant pertaining to 2 juvenile officers. E. City Council to consider a resolution authorizing the City Staff to apply for a grant relative to communication recording devices. F. City Council to consider a resolution authorizing the City Staff to apply for a grant providing for a Narcotic Officer. G. City Council to consider authorizing the revision of a construction crew drainage project previously approved in the Shorecrest Acres area. H. City Council to consider an ordinance relating to traffic control in certain areas of the City. I. City Council to consider the acceptance of a Water � ,, Systems Analysis Report from Freese & Nichols and authorization of payment of same. VII. EXECUTIVE SESSION A. City Council to recess to the Conference Room for the purpose of discussing pending litigation pur- suant to Article 6252-17, V.A.T.C.S. , Subsection (e) . B. City Council to reconvene in the Council Chambers and take any necessary action relative to pending litigation. VIII. ADJOURNMENT IN ACCORDANCE WITH ARTICLE 6252-17 , V.A.T.C.S. , AS AMENDED BY CHAPTER 227 , ACTS OF THE 61ST LEGISLATURE, REGULAR SESSION, THE REGULAR CITY COUNCIL MEETING AGENDA WAS PREPARED AND POSTED ON THIS THE 31ST DAY OF JULY, 1981 AT 4 : 00 P.M. �• ,, �,.:. s City Sec tary �� ,�:,.� � AGENDA CITY OF GRAPEVINE, TEXAS REGULAR CITY COUNCIL MEETING TUESDAY, AUGUST 4 , 1981 AT 7 : 30 P.M. �,,, COUNCIL CHAMBERS - 413 MAIN STREET � V. OLD BUSINESS E. City Council to consider a resolution regard- ing Texas Power & Light Company' s rate increase request for the purpose of continuing the sus- pension of rates. THE ABOVE EMERGENCY ITEM WAS PLACED ON THE CITY COUNCIL MEETING AGENDA BECAUSE IMMEDIATE ACTION IS NECESSARY TO INSURE THE HEALTH, SAFETY, AND GENERAL WELFARE OF THE CITIZENS OF THE CITY OF GRAPEVINE, TEXAS. � , ��..� IN ACCORDANCE WITH ARTICLE 6252-17 , V.A.T.C.S. , AS AMENDED BY CHAPTER 227 , ACTS OF THE 61ST LEGISLATURE, REGULAR SESSION, THE REGULAR CITY COUNCIL MEETING AGENDA WAS PREPARED AND POSTED ON THIS THE 4TH DAY OF AUGUST, 1981 AT 11:00 A.M. ,, j- ,��t �� .�r City Sec tary �l �..<:t, � AGENDA CITY OF GRAPEVINE, TEXAS SPECIAL PLANNING & ZONING COMMISSION MEETING TUESDAY, AUGUST 4 , 1981 AT 6 :30 P.M. CONFERENCE ROOM - 413 MAIN STREET �.� I. CALL TO ORDER II . OLD BUSINESS Planning & Zoning Commission to conduct a workshop and formulate a recommendation to the City Council relative to the Master Plan update. III. ADJOURNMENT THE ABOVE EMERGENCY AGENDA WAS PREPARED BECAUSE IMMEDIATE ACTION IS NECESSARY TO INSURE THE HEALTH, SAFETY, AND �� GENERAL WELFARE OF THE CITIZENS OF THE CITY OF GRAPEVINE, TEXAS. �� IN ACCORDANCE WITH ARTICLE 6252-17, V.A.T.C.S. , AS AMENDED BY CHAPTER 227 , ACTS OF THE 61ST LEGISLATURE, REGULAR SESSION, THE SPECIAL PLANNING & ZONING COMMISSION MEETING AGENDA WAS PREPARED AND POSTED ON THIS THE 4TH DAY OF AUGUST, 1981 AT 11: 00 A.M. .��.�__ ,�hi��n.� City Seq� ry � ✓ �:� � I �i _... �i STATE OF TEXAS COUNTY OF TARRANT CITY OF GRAPEVINE The City Council of the City of Grapevine, Texas met in ,�,:,.� Regular Session on this the 4th day of August, 1981 at 7 : 30 p.m. in the Council Chambers, 413 Main Street, with the following persons present to-wit: William D. Tate Mayor Ted R. Ware Mayor Pro Tem William Shafer Council Member C. L. Oliver Council Member Marion Brekken Council Member Ron Dyer Council Member constituting a quorum with Councilman Dunn absent, with the following members of the City Staff in attendance: James L. Hancock City Manager Bill Eisen Assistant City Manager John F. Boyle, Jr. City Attorney Shirley Armstrong City Secretary CALL TO ORDER Mayor Tate called the meeting to order. INVOCATION � The Invocation was delivered by Reverend Gary Kindley, Asso- ciate Pastor of the First United Methodist Church, Grapevine. "'�""`� CONSIDERATION OF THE MINUTES The first order of business was for the City Council to con- sider the minutes of the meetings of July 21 & 23 , 1981. There being no additions or corrections, Councilman Oliver made a motion to waive the reading of the minutes and approve them as published. The motion was seconded by Mayor Pro Tem Ware and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn HOUSE MOVING APPLICATION, DIANE WILSON The next order of business was for the City Council to con- sider an application submitted by Ms. Diane Wilson for the relocation of a house and a subsequent resolution. The City Secretary read the caption of the proposed resolution. �� , There being little discussion, Mayor Pro Tem Ware made a motion to adopt the resolution. The motion was seconded by Council Member Shafer and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn 08/04/81 RESOLUTION N0. 81-22 A RESOLUTION OF THE CITY OF GRAPEVINE, TEXAS, PROVIDING FOR THE ISSUANCE OF A PERMIT AUTHORIZING THE RELOCATION OF A HOUSE, PROVIDING FOR A NON-TRANSFERABLE PERMIT, AND PROVIDING FOR AN EFFECTIVE ,«� DATE ENGINEER'S REPORT, GRAPEVINE/COPPELL WATER & SEWER AGREEMENT The next order of business was for the City Council to con- sider a report from the engineering firm of Freese & Nichols pertaining to water and sewer facilities to serve the north- east portion of the City. Mr. Bob Nichols then addressed the Council and reviewed the report, attached hereto as Exhibit "A" and made a part hereof. RESOLUTION, GRAPEVINE/COPPELL WATER & SEWER AGREEMENT The next order of business was for the City Council to con- sider a resolution relative to entering into a contract with the City of Coppell for the purpose of providing water and sewer services to the proposed Airport Business Park and other areas of northeast Grapevine. The City Secretary read the caption of the resolution. City Attorney John Boyle reviewed the contents of the resolu- tion followed by the City Manager' s recommendation of approval. � Following a lengthy discussion, Mayor Pro Tem Ware made a motion to adopt the resolution. The motion was seconded by Councilman Oliver and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, & Brekken Nays . Dyer Absent: Dunn RESOLUTION NO. 81-23 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF GRAPEVINE, TEXAS, SETTING THE TERMS OF AN AGREEMENT BETWEEN THE CITIES OF COPPELL AND GRAPEVINE FOR MUTUAL ASSISTANCE IN THE PROVISION OF UTILITY SERVICES TO A DEFINED AREA PLANNING & ZONING COMMISSION RECOMMENDATION OF MASTER PLAN The next order of business was for Ms. Sharron Spencer, Chair- man of the Planning & Zoning Commission, to present the Commis- sion' s final recommendation relative to the update of the City' s land use and thoroughfare plan. Ms. Spencer gave a brief history after which she presented the Council with the map and document of the Comprehensive Master Plan Update. ,, No formal action was taken. 08/04/81 NATURAL GAS FUEL SYSTEMS/ADVERTISE FOR BIDS The next order of business was for the City Council to consider authorizing the City Staff to advertise for bids for conversion kits and compressors for natural gas fuel systems for City vehicles. Assistant City Manager Bill Eisen made a brief presentation �� after which members of the Council asked numerous questions. Following the discussion, Councilman Shafer made a motion to authorize the City Staff to advertise for bids. The motion `�' was seconded by Mayor Pro Tem Ware and prevailed by the fol- lowing vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn TEXAS POWER & LIGHT RATE INCREASE - RESOLUTION The next order of business was for the City Council to con- sider a resolution regarding Texas Power & Light Company' s rate increase request for the purpose of continuing the suspension of rates. City Manager Jim Hancock gave a brief history stating that on March 6 , 1981, Texas Power & Light filed a rate increase request with the proposed rates to go into effect on April 10 , � 1981. He continued that in response, the City of Grapevine passed Resolution 81-8 (on March 17) which suspended the effective date of the rates for 120 days beyond the date on which the schedule of rates was proposed to go into effect. � Mr. Hancock added that the 120-day suspension would end on August 8. �` `� The City Secretary then read the caption of the proposed reso- lution, which provided for the suspension of the rates for an additional 30 days. Mayor Pro Tem Ware then made a motion that the resolution be adopted. The motion was seconded by Councilman Shafer and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn RESOLUTION NO. 81-24 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF GRAPEVINE, TEXAS EXTEND- ING THE SUSPENSION OF THE EFFECTIVE DATE OF PROPOSED REVISIONS OF RATES AND SCHEDULES OF TEXAS POWER & LIGHT COMPANY FOR 30 DAYS FROM AUGUST 8, 1981; PROVIDING THAT THE RATES OF �� SAID PUBLIC UTILITY SHALL REMAIN UN- CHANGED DURING THE PERIOD OF SUSPEN- SION; AND PROVIDING FOR NOTICE HERE- OF TO SAID PUBLIC UTILITY RECESS A brief recess was then called by Mayor Tate. The meeting was called back to order with all members present with the excep- tion of Councilman Dunn. 08/04/81 RESOLUTION, POLICE LAKE PATROL GRANT The next order of business was for the City Council to con- sider a resolution authorizing the City Staff to apply for a grant pertaining to police lake patrol. City Manager Jim Hancock reported that the grant total was $238, 000, to be 100� funded by the State of Texas. He added that if approved, the grant would provide funds for five � officers, a boat, a land vehicle, and other necessary equip- ment for the purpose of patrolling Lake Grapevine. ,s.;� The City Secretary read the caption of the proposed resolution. Council Member Marion Brekken made a motion, duly seconded by Council Member Larry Oliver, that the resolution be adopted. The motion prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn RESOLUTION NO. 81-25 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF GRAPEVINE, TEXAS, AUTHOR- IZING THE CITY OF GRAPEVINE TO APPLY FOR A GRANT FROM THE LAW ENFORCEMENT ASSISTANCE ADMINISTRATION PROVIDING NECESSARY FUNDING, WITHIN THEIR GUIDE- LINES, FOR PERSONNEL AND THE PURCHASE OF EQUIPMENT RELATIVE TO LAW ENFORCE- MENT AT LAKE GRAPEVINE � RESOLUTION, CRIME PREVENTION OFFICER GRANT �,;:� The next order of business was for the City Council to con- sider a resolution authorizing the City Staff to apply for a grant pertaining to a Crime Prevention Officer. The City Manager explained that, if approved, the grant would provide 60� of the total $32, 000 project. He added that the application was requesting third year funding. The City Secretary read the caption of the proposed resolution. There being little discussion, Mayor Pro Tem Ware made a motion that the resolution be adopted. The motion was seconded by Councilman Oliver and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn RESOLUTION NO. 81-26 A RESOLUTION AUTHORIZING THE CITY OF GRAPEVINE TO APPLY FOR A GR.ANT FROM THE TEXAS CRIMINAL JUSTICE DIVISION RELATIVE TO A CRIME PREVENTION SPECIALIST , ,r RESOLUTION, JUVENILE OFFICERS GRANT The next order of business was for the City Council to con- sider a resolution authorizing the City Staff to apply for a grant pertaining to two juvenile officers. 08/04/81 Mr. Hancock explained that the application was requesting fifth year funding for 20� of the total $63, 000 expenditure. The City Secretary read the caption of the proposed resolution. Councilman Dyer made a motion that the resolution be adopted. The motion was seconded by Councilman Shafer and prevailed by the following vote: �:�. Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None �� Absent: Dunn RESOLUTION NO. 81-27 A RESOLUTION AUTHORIZING THE CITY OF GRAPEVINE, TEXAS TO SUBMIT A GRANT APPLICATION TO THE TEXAS CRIMINAL JUSTICE COUNCIL FOR CONTINUED FUND- ING FOR THE YOUTH SERVICES DIVISION RESOLUTION, COMMUNICATIONS EQUIPMENT GRANT The next order of business was for the City Council to con- sider a resolution authorizing the City Staff to apply for a grant relative to communication recording devices. The City Manager explained that the grant, if approved, would provide recording equipment for radio transmission and tele- phone service at the Police Communication Center. He further noted that the total cost of the equipment was $25 , 000 , which would be 80� funded by the grant. The City Secretary read the caption of the proposed resolution. Councilman Shafer made a motion that the resolution be adopted. �'" The motion was seconded by Councilman Dyer and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn RESOLUTION N0. 81-28 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF GRAPEVINE, TEXAS, AUTHOR- IZING THE CITY OF GRAPEVINE TO APPLY FOR A GRANT FROM THE LAW ENFORCEMENT ASSISTANCE ADMINISTRATION PROVIDING NECESSARY FUNDING, WITHIN THEIR GUIDE- LINES, FOR PERSONNEL AND THE PURCHASE OF EQUIPMENT RESOLUTION, NARCOTICS OFFICER GRANT The next matter to come before the Council was consideration � of a resolution authorizing the City Staff to apply for a grant providing for a narcotics officer. The City Manager explained that, if approved, the grant would provide funds for under-cover narcotic purchases, car rental, and other expenses related to the arrest of street drug deal- ers. He continued to note that the total annual cost was $28 , 000 , which would be 100� funded by the state for the first year. The City Secretary read the caption of the proposed resolution. ` -� � 08/04/81 Councilman Dyer made a motion that the resolution be adopted. The motion was seconded by Council Member Brekken and pre- vailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn RESOLUTION NO. 81-29 A RESOLUTION AUTHORIZING THE CITY OF GRAPEVINE TO SUBMIT A GRANT APPLICA- . :„�. TION TO THE TEXAS CRIMINAL JUSTICE COUNCIL FOR A NARCOTICS INVESTIGATOR CONSTRUCTION CREW PROJECT REVISION, SHORECREST ACRES The next order of business was for the City Council to con- sider authorizing the revision of a construction crew drain- age project previously approved in the Shorecrest Acres area. City Engineer Jim Baddaker explained that on July 7 , the Council approved the expenditure of bond funds in the amount of $11, 337. 05 to eliminate drainage problems in the Shore- crest Acres Addition. He added that the original design on the project called for open ditches on Anglers Plaza, Shore Drive, and Chris Craft. Mr. Baddaker continued to say that the Staff had attempted to obtain a drainage easement from a lot owner for the project, but had been refused unless an additional 420 feet of pipe work was done. He added that the extension of pipe would eliminate deep drainage ditches and would provide a more aesthetically pleasing aspect to the area. The Council was advised that the additional cost of the project would be $7, 784. 80. Following a lengthy discussion, Council Member Marion Brekken �.,,�.. made a motion to authorize the increase in the work to be done and to increase the scope of the expenses to $19 ,121. 85 . The motion was seconded by Mayor Pro Tem Ware and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, & Brekken Nays . Dyer Absent: Dunn TRAFFIC CONTROL, STOP SIGNS, NO PARKING The next order of business was for the City Council to con- sider an ordinance relating to traffic control in certain areas of the City. City Engineer Jim Baddaker advised that it was his recommenda- tion that the intersections of Lakeview/Lakeridge and High Drive/Lakeview be made four-way stop intersections. He also recommended that No Parking signs be erected fifty feet from each inside corner of "U"-shaped Choteau Circle. Following a short discussion, the City Secretary read the ""� caption of the proposed ordinance. Council Member Marion Brekken made a motion that the ordinance .--:� be adopted. The motion was seconded by Councilman Shafer and prevailed by the following vote : Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn 08/04/81 ORDINANCE NO. 81-51 AN ORDINANCE AMENDING CHAPTER 23, SECTIONS 30 & 63 OF THE CITY CODE OF GRAPEVINE, TEXAS, BY ADDING STOP SIGNS AND NO PARKING SIGNS AT CER- TAIN LOCATIONS DESCRIBED HEREIN; AUTHORIZING THE ERECTION OF TRAFFIC �-�� REGULATIONS SIGNS; REPEALING CON- FLICTING ORDINANCES; PROVIDING A SEVERABILITY CLAUSE; PROVIDING A PENALTY; AND DECLARING AN EMERGENCY FREESE & NICHOLS WATER SYSTEMS REPORT PAYMENT The next order of business was for the City Council to con- sider the acceptance of a Water Systems Analysis Report from Freese & Nichols and authorize payment of same. City Engineer Jim Baddaker advised the Council that a state- ment in the amount of $35,147. 10 had been received from Freese & Nichols pertaining to the preparation of a water systems analysis report. Mr. Baddaker advised that the City Staff recommended acceptance and payment of same. Mayor Pro Tem Ware made a motion to accept the recommendation of the City Staff to accept the report and authorize the pay- ment of same in the amount of $35, 147. 10. The motion was seconded by Council Shafer and prevailed by the following vote: Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None y Absent: Dunn �t , EXECUTIVE SESSION, LITIGATION Mayor Tate advised that the Council would recess to the Con- ference Room for the purpose of discussing pending litigation pursuant to Article 6252-17, V.A.T.C.S. , Subsection (e) . Following the Executive Session, the Council reconvened in the Council Chambers with all members present except Council- man Dunn. Mayor Tate called the meeting back to order and asked the City Manager if any action was necessary by the Council relative to the Executive Session. Mr. Hancock recommended that the Council authorize the City Attorney to take whatever action he deemed necessary in fur- ther pursuit of the EPA grant application for the Bear Creek sewer line project. Councilman Oliver made a motion to accept the recommendation of the City Manager. The motion was seconded by Councilman Dyer and prevailed by the following vote: ��, Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn ADJOURNMENT There being no further business to come before the Council, Councilman Shafer made a motion to adjourn. The motion was seconded by Mayor Pro Tem Ware and prevailed by the following vote: 08/04/81 Ayes . Tate, Ware, Oliver, Shafer, Brekken, & Dyer Nays . None Absent: Dunn PASSED AND APPROVED BY THE CITY COUNCIL OF THE C Y OF GRAPEVINE, TEXAS on this the Ig� day of , 1981. �► APPROV . _�--�� ;.�� Mayor ATTEST: i t�C�� t y � � .. .� EXHIBIT "A" TO THE MINUTES OF AUGUST 4 , 1981 ' �, :, , , � . . .- .... . _ �,.�„ r REPORT ON WATER AND SEWAGE FACILITIES TO SERVE AIRPORT BUSINESS PARK Prepared For The City of Grapevine, Texas `� July 30, 1981 General : fi The City of Grapevine has received a request for water and sewer �- -• services to serve that portion of the "Airport Business Park" that lies within the city limits of Grapevine and water service to that portion of the development that lies within the City Limits of Coppell . � For the purposes of these investigations, it has been assumed that • services to the area within Grapevine will be provided in accordance with current City policies and procedures. This study has been limited to: (1 ) determining the capabilities of the Grapevine Water System to serve the area in Coppell , and (2) determine one or more methods of providing sewer service to the area within Grapevine. � Water Supply . The most recent projections of water supply requirements for the City is set forth in the "Report on Water Distribution System Study for the City of Grapevine, Texas," prepared by Freese and Nichols, Inc. , and dated 1981 . A summary of these projections is shown on Table 1 . The City obtains its water supply from two sources - Lake Grapevine and the � Regional Water Supply System owned and operated by the Trinity River Authority. The projected quantities of water to be secured from each 1 .l . � �� of the two sources are also shown on Table 1 . The proposed Airport Business Park lies within the service area of the Lake Grapevine source. It is anticipated that the projected water requirements for the Lake Grapevine area source provides sufficient water supplies to meet the requirements of the Airport Business Park � that is within the Grapevine City Limits. The water requirements for the development within Coppell are not included in the original water projections. The engineer for the developers estimate that the area „�,,,�, within Coppell , when fully developed, will have an average daily water requirement of 0.21 MGD and a maximum daily requirement of 0. 42 MGD. The Lake Grapevine supply requirements, including that portion of the development within Coppell , is shown on Table 1 . ' ' It is anticipated that Grapevine' s share of the safe yield of Lake Grapevine during a critical drought period is 3. 5 MGD. The projected water requirements for the Lake Grapevine service area, including that portion of the development within Coppell , is 3.74 MGD for the year 2000. Should Lake Grapevine experience a critical drought period in the 1990's, Grapevine's surface water supply will be exceeded in the year � 1998. Should the area enjoy a normal rainfall and runoff period, then adequate water will be available throughout this century. It should be � noted that the area within Coppell would utilize 0.21 MGD of the 3.74 MGD average requirements in the year 2000 or approximately 6°0 of the total water requirements. Water Treatr^ent Plant The Lake Gra!�evine water is treated in a plant located just below the Grapevine Dam. The plant has recently been expanded to a capacity 1 .2 i. _ ._ , _,.: .... . _ _ .�,-��. _ , ,r:, �-� of 4.0 MGD. The "Report on Water Distribution System Study" states " . . that the current water treatment plant capacity of 4.0 MGD will oe adequate until about the year 1985. " Referring to Table 1 , it should be noted that the plant will require expansion prior to the summer of C1985 if it is to meet the projected maximum daily requirements of 4.24 MGD. If that portion of the Airport Business Park within Coppell was completely developed by 1983, .the capacity of the plant would be F exceeded on occasions during the summer months. Under this assumption, �, . it would be necessary to have the plant expanded by the year 1983. It is doubtful that such a rapid development will occur. A more reasonable assumption appears to be eighteen months will pass before any permanent . water customers are located in the Airport Business Park and major � office complexes will not be completed until 1985 at the earliest. Therefore, the addition of the Coppell area to the system might require • the plant being expanded in 1984 in lieu of the current recommendations of 1985. If development occurs at a slower rate, then the expansion of the plant might not be expedited at all . It should be noted that the "Report on Water Distribution System �. Study" anticipates that the next plant expansion will be 3.0 �1GD, making , a total capacity of 7.0. While th�s would be adequate to meet the pro- jected maximum daily requirements as shown in the original Report (7.06 MGD) , it would not be adequate to meet the projected maximum daily capa- city in the year 2000 if service was provided to the Coppell area (7.48) . Very likely studies conducted prior to an expansion program might indieate a desirability of expanding in 2.0 MGD increments and that the plant probably will be doubled in capacity, making a total of 8.0 MGD. 1 .3 � _. . _ � ��.� Water Distribution System: The water distribution system will be extended to the Airport Business Park from a point in the vicinity of State Highway 121 and the water treatment plant. This results in only a very small segment of the existing water distribution system being utilized in providing service � to the proposed development and should not deteriorate the quality of service to the customers of the existing system. It was originally anticipated that Grapevine would .deliver water to � the City of Coppell at the city limits line and that all customers within Coppell would be customers of that City. Mr. John Boyle, City Attorney, advises, however, that the water permit issued to Grapevine by . the Texas Water Rights Commission stipulates that water can be provided ' ' by Grapevine from its distribution system. Mr. Boyle advises that delivery of the water to Coppell for resale to their customers would be . in violation of the permit. He advises, however, that the City could provide services outside the city limits providing the customers are customers of Grapevine. It is therefore anticipated that should Grape- � vine elect to serve the area they would own and operate the system and all customers would be customers of Grapevine. It is assumed that at , some future date Coppell will have the facilities to take over the responsibility of water service to this area and that Grapevine would withdraw to its city limits at that time. � � : Cost of Water Facilities : The developers of Airport Business Park have indicated a willing- ness to construct all off-site water distribution system extensions ,, 1 .4 k .. . . .. .... . .. . ep4yr . . � ... � . . . . � . � '- . .' .' . . . . .. -. .- � . .. . ' �>� required to serve the area in addition to providing all on-site improve- ments. Based upon this assumption it is not anticipated that the City will be required to make any capital investments in the water system facilities. Since the customers in the Coppell portion of the development will � be Gra evine customers the will p y pay for water services in accordance with the current ordinances; that is , double the rates charged customers r within the city limits. The double water rates will be adequate to � . offset the cost of purchasing water from the Trinity River Authority source in the unlikely event such purchases become necessary to provide water to the Airport Business Park area within .Coppell . Summarized below are the water usages and billings for water sales ' for a five-month period. A fifteen percent rate increase is included in the May, 1981 , billing. Even without this increase, all of the monthly income per 1000 gallons are greater than the current contractual unit cost for TRA water of $0. 55 per 1000 gallons. Water Usage Income per Mo./Year (M.G. ) Billings 1000 gallons ( ` Dec 1980 43.023 $55,828.99 $1 . 30 Jan 1981 35.953 58,691 . 55 1 .63 Feb 1981 37.751 59,983.09 1 . 58 � Mar 1981 34.040 55,953.71 1 .64 ' Apr 1981 45. 567 68,713.03 1 .51 May 1981 40.771 64,084. 10 1 .57 Sewer Service : The City lies in two primary watersheds: (1 ) Denton Creek and (2) Big Bear Creek, a tributary to the West Fork of the Trinity River. The Airport Business Park lies on Cottonwood Branch, a tributary to Denton 1 .5 I }: . . . . . . . . . . '.. .. --� . 1�R Creek. The development lies downstream from the existing sewage collection system and therefore cannot flow by gravity into the facili- ties. In analyzing the appropriate method of providing sewage service to the Airport Business Park Development, consideration should be given to ', � providing service to the entire a rea east of the entrance road to Grape- vine Dam. A portion of this area lies in Denton Creek proper with the low point being at Denton Creek and the northeast city limits. The � remaining area lies in Cottonwood Branch with the low point being where the branch crosses the city limits line. The Hilton Project is currently underway in this northeast section , of the City and other developments will undoubtedly follow. The plan- � ning of the utilities for the Airport Business Park should be given consideration to the Hilton Project. Drainage Area: The Grapevine area east of the entrance road to Lake Grapevine Dam excluding the identified flood plain can be divided into four sections. � Grapevine section of the Airport Business Park 85 acres Grapevine section of Cottonwood Branch excluding the Airport Business Park and the designated � ' highway right-of-ways 398 acres Grapevine section of Denton Creek with terrain _,� features that will permit reasonable development 240 acres Grapevine section of Denton Creek excluding the flood plain and developable area 526 acres The separation of the Denton Creek watershed into the area with terrain features that are desirable for development and the area with terrain features that are more expensive to develop was made by Jim 1 .6 �_ � _ � Baddaker. This judgment was based on past experience and on-the-ground observations of the area. Design Flows The entire developable area is designated for industrial and ( commercial u�e. A 1500 gallons per acre per day rate has been used by , Freese and Nichols in previous plans for this area. Hogan and Rason, in an evaluation for the City of Coppell , used 3.5 connections per acre, �� 3.0 people per connection, 25 gallons per capita sewage flow and a 2.5 ��,,, factor for maximum to average ratio. These values result in a 656 gallons per acre per day rate. Hogan and Rason included an additional amount for infiltration/inflow. The State recommends an average of 25 � gallons per capita for average flow from industrial areas. De�ending on • the type of industrial and commercial development;the per acre contribu- tion will likely fall between the�e two rates. The full amount will not occur until the development is completed which should require at least ten years. Using these rates, the peak design flows from the contributing ( areas would be: Grapevine section of the Airport Business Park 0.06 MGD to 0.13 MGD �' ' Grpaevine section of Cottonwood Branch excluding the Airport Business Park and the designated high- way right-of-ways 0.26 MGD to 0.60 MGD � Grapevine section of Denton Creek with terrain features that will permit reasonable develop- ment 0. 16 MGD to 0. 36 P�1GD 0.48 MGD to 1 .09 P�GD 1 .7 2. _. . . . - �� - . . -... �_. , . . _ . . ... . , . ., `� . i aw �' Estimated Cost for Alternatives to Serve Area The City of Grapevine is currently establishing the most cost effective means of serving the Hilton Project which is located within the area under consideration. This service will be required regardless of the decision on the Airport Business Park. Combining the service to � the Hilton Project into the overall plan for the area is advantageous to ' Grapevine. Three alternatives to serve only the Hilton Project have been considered. � It is our understanding that the Hilton will have 600 rooms, , � meeting areas, restaurant facilities, etc. , and other usage structures will , very likely, follow. The minimum facilities should be adequate to ', serve more than that required for the hotel area alone. I! ' (a) Alternate No. l would comprise lift station at, or near, the Hilton site and a force main pipe line from the lift station, along , north side of State Highway 121 , to existing 12" gravity sewer east of Dooley Street. Preliminary cost for these facilities is about �184,900. (b) Alternate No. 2 would comprise gravity sewer from Hilton site west across a draw to a lift station that would serve the general area, � the water plant, golf course, etc. , a force main between lift station and a point south of south end of Grapevine Reservoir Dam, thence a � gravity sewer to a lift station west of Ruth Wali Road north of Wildwood Lane, thence a force main from that lift station to Boyd Drive at b�ild- ��x� wood at which point the sewage would flow by gravity to Grapevine's , wastewater treatment plant. This alternate should be constructed of � adequate sizes to serve the traversed areas with minimum of changes and/or additions. The preliminary estimate of cost for these facilities comprise the following: 1 .8 r. �::. � _ , _._. _. �� Hilton Area Lift Station, including gravity inlet line $ 61 ,600 8" Force P�ai n to South End Dam, 3,000 L. F. 37,000 10" Gravity Sewer to Ruth Wall Lift Sta. , approximately 5,600 L. F. 104,700 Ruth Wall Lift Station 61 ,600 8" Force Main to Boyd at Wildwood, 2,000 L.F. 30,800 C Preliminary Estimate of Cost, Alternate 2 $295,700 (c) Alternate No. 3 comprises a gravity flow sewer line from the � Hilton site easterly to existing Coppell 12" sewer. The estimate of � , cost is based on 10" sewer main, about 5,000 feet in length and would include two highway crossings, expected to cost about $110,900. This alternate would require agreement between City flf Grapevine and the . Coppell MUD #l , and perhaps would require concurrence of Trinity River Authority and the City of Coppell�. Preliminary studies indicate that the Denton Creek drainage area that has terrain features that will permit reasonable development can be best served by the construction of a series of small lift stations that would transfer the waste through force mains to Cottonwood Branch. Most ( of these lift stations could be installed and maintained by the develop- ment owners. �^ . Two options are available to serve the Cottonwood Branch area: (1 ) construct a lift station at the city limits and transfer the waste to the existing outfall main on Dooley Street, and (2) contract with the Coppell Municipal Utility District to receive and treat the waste. To � transfer the waste to the Coppell MUD #1 would require contractual nego- � tiations with the District whereas the construction of the lift station would be totally within Grapevine' s jurisdiction. 1 .9 �.:-..� The estimated cost of constructing the lift station of adequate size to serve the entire drainage area is �778,000, as shown in the tabulation below: These facilities could also serve the Hilton Project although the cost outline below do not contain the additionaT facilities for the Hilton Project described previously. ` Lift Station $150,000 Force Main, 15,000 L. F. - 15" 465.000 Gravity Line, 1 ,000 L. F. - �g" 33,000 � Subtotal $648,000 .,r�� Contingencies, 20% 130,000 TOTAL $778,000 i,, � It should be noted that when the entire drainage area (723 acres) , ' is fully developed, the outfall main on Dooley Street will not be ade- quate and a parallel facility will be required. Detail studies have not been made to project when this construction will be necessary. Pre- liminary reviews indicate that a 15-inch gravity line of approximately 5,300 linear feet will be required at an estimated cost of some �175,000 to �200,000 (1981 dollars) . C_ The development of the entire area will also impact on the construc- tion schedule for the proposed improvements to the Morehead Branch �� Wastewater Treatment Plant. The most recent estimate indicated that tertiary filters would be required by 1983 at a cost of an estimated $500,000. The development of the area east of Lake Grapevine Dam could accelerate this schedule, but this item needs some additional evaluation � in which growth in other sections of the City are considered. 1 .10 A . .., �� aew Preliminary discussions with the Coppell Municipal Utility District and the City of Coppell indicate a willingness to cooperate with the City of Grapevine in providing water and sewer service to this total area. An initial cost of $400 per acre with a maintenance and operating Ccost of $0.65 per 1 ,000 gallons have been proposed. An engineering report prepared by Hogan and Rason for the City of Coppell indicated that certain segments of the system would be overloaded when their current service area is fully developed. This condition will not exist �;.., for several years and capacity does exist at the present time. An agreement for service by the Coppell Municipal Utility District appears possible if the City of Grapevine is willing to participate in the cost • for expansions when they are required. , The City of Grapevine sewer system cost and analysis for December 1980 - May 1981 as prepared by Jim Baddaker is presented in Table 2. ' The City's expense per 1 ,000 gallons of sewage is greater than the 0.65 per 1 ,000 gallons proposed by the District. The City's expense will be even greater if the construction projects required to divert the waste- � water flows from the area east of Lake Grapevine Dam are included. The operation and maintenance cost will also be greater because of the . additional lift stations. 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