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HomeMy WebLinkAbout03-00500180- 00076181 Westfield Village Subdivision Phase 6 Addendum #1 to the Original Water and Sewer Report submitted in conjunction with the Phase 6 Construction Drawings July, 2003 OF is 65923 744 7/2870 ADDENDUM TO WATER AND SEWER ANALYSIS FOR WESTFIELD VILLAGE SUBDIVISION Submitted in conjunction with Phase 6 Construction Drawings Phase 1 of Westfield Village is nearing completion and the owner has decided that Phase 6 should be the next section of the subdivision to open. Plans for this phase call for 30 additional single- family residential lots. The water and sewer analysis that was prepared for Westfield Village analyzed Phase 1 -6 and made allowances for utility lines that were adequately sized to serve the entire subdivision. However, the assumption in those studies was that the subdivision would develop sequentially by phases and that each new phase would be contiguous to a previous phase. This is not the case with Phase 6. There is no part of Phase 1 that is contiguous to Phase 6, and the utility lines that serve Phase 6 will extend from lines that were previously constructed other subdivisions north of Westfield Village. Therefore, this analysis was prepared to demonstrate that the water and sewer systems being proposed in Phase 6 function adequately when they are not connected to the systems in Phase 1. Sewer System Analysis The primary sewer outfall for Phase 6 is a 12" sewer line that is being constructed with an adjoining subdivision (Edelweiss Gartens, Phase 5). The lots in Phase 6 of Westfield Village were included in the analysis and design of that system. A copy of that analysis is shown in Exhibit A of this addendum. The 30 lots in Phase 6 of Westfield Village are included in the 105 R -1 lots on Line CC -EE of the analysis. Water System Analysis The water supply for Phase 6 of Westfield Village will be a 12" line that was installed along Victoria Avenue from Graham Road southward to its existing terminus. The new water line in Phase 6 will connect to the 12" line and extend approximately 780 feet southward. Exhibit B shows a schematic drawing of Phase 6 and its proposed water system. A computer model of the Phase 6 water system was prepared using the same parameters in the original study. As required, two fire hydrants flowing at a rate of 750 gpm each were added to the model to study the systems performance under fire flow conditions. A printout of the output data is shown in Exhibit C. It indicates that the lowest pressure experienced under these conditions was 83 psi. This is well above the TCEQ minimum requirement of 20 psi. Therefore, we conclude that the water system being proposed for Phase 6 of Westfield Village is adequately sized and that it can function without connection to the system in Phase 1. It can also be concluded that flow characteristics will be improved when the remainder of the water system in Phases 2 -5 is completed. T T A o a .6 r. v v ' "e A o . . o. .o <v '-' Q = R < W 3 o Au � ^ r rn q Q w __ ,.a a M e h « ` c 1 w !!! C k"' ::: - p (a a 1 8. egg a 0 0 0 U 0 0 0 0 �/� a•. ini `o i o s Yj• N or b 5 8 K d K 0 0 o v d 8 5 0 0 0 0 v ,0 1 a u o , o ,o ,o u c o u o o en v 04 , o u c V. h M o 0 o a ,.' �, a u, 0 0 0 0 o a 4. i s xQ g • U ;° a W ta ° o o c m a U us a—` ° 6 0 0 0 0 �' oG • :O 11 g u u Nl Hl en O u u N r h 04 C h n h . 9 b t • n- O • � - a 'V V V - a << K a V CI r,,, U O O O Y O O O O O v 4 A Q A A g A A A (1) V v 0 eV N eV T O N N eV eV el it 61 F. r E. r Y1 ry O 0 v ,O b b 0 ^ O 00 ^ ,O 0 V T . 6 h in 03 Q > ��11 a d 0 O OV ? 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Q q ., .a w E U w o 4t m U g w w w < a U w w 11.- m U g w EXHIBIT C Westfield Village, Phase 6 Water System Analysis * * * * * * * * * * * * * * K Y P I P E * * * * * * * * * * * * * * * University of Kentucky Hydraulic Analysis Program * * for the Distribution of Pressure and Flows in Pipe Network Systems * * FORTRAN VERSION - 3.40 (01/02/91) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * DATE: 7/25/2003 TIME: 15:40:30 INPUT DATA FILENAME west6.dat TABULATED OUTPUT FILENAME west6.out ***************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** S U M M A R Y O F O R I G I N A L D A T A ***************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** U N I T S S P E C I F I E D FLOWRATE IS EXPRESSED IN GPM AND PRESSURE IN PSIG P I P E L I N E A N D P U M P D A T A PIPE NO. NODE NOS. LENGTH DIAMETER ROUGHNESS MINOR LOSS K FIXED GRADE (FEET) (INCHES) 1 0 1 1300.0 12.0 150.0 3.10 514.00 2 1 2 166.0 8.0 150.0 2.80 3 2 3 150.0 8.0 150.0 2.30 4 3 4 60.0 6.0 150.0 .70 5 4 5 350.0 6.0 150.0 .00 6 3 6 800.0 8.0 150.0 1.20 7 6 7 265.0 8.0 150.0 2.80 8 2 7 530.0 8.0 150.0 2.30 A SUCCESSFUL GEOMETRIC VERIFICATION HAS BEEN COMPLETED J U N C T I O N N O D E D A T A JUNCTION NUMBER DEMAND ELEVATION CONNECTING PIPES 1 .00 296.00 1 2 2 3.00 298.00 2 3 8 3 .00 296.00 3 4 6 4 750.00 296.00 4 5 5 57.00 298.00 5 6 780.00 296.00 6 7 7 .00 300.00 7 8 EXHIBIT C Westfield Village, Phase 6 Water System Analysis O U T P U T O P T I O N D A T A OUTPUT SELECTION: ALL RESULTS ARE OUTPUT EACH PERIOD S Y S T E M C O N F I G U R A T I O N THIS SYSTEM HAS 8 PIPES WITH 7 JUNCTIONS , 1 LOOPS AND 1 FGNS ****** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** S I M U L A T I O N R E S U L T S ****** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** THE RESULTS ARE OBTAINED AFTER 3 TRIALS WITH AN ACCURACY = .00060 S I M U L A T I O N D E S C R I P T I O N ( L A B E L ) Westfield Village Sub. Ph 6 Res.Demand =3 GPM /Residence Fire Flow = 2 @ 750 GPM (Nodes 4 & 6) July 2003 McCLURE ENGINEERING P I P E L I N E R E S U L T S PIPE NO. NODE NOS. FLOWRATE HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY HL /1000 1 0 1 1590.00 5.97 .00 .98 4.51 4.59 2 1 2 1590.00 5.49 .00 4.48 10.15 33.08 3 2 3 1039.31 2.26 .00 1.57 6.63 15.05 4 3 4 807.00 2.29 .00 .91 9.16 38.25 5 4 5 57.00 .10 .00 .00 .65 .28 6 3 6 232.31 .75 .00 .04 1.48 .94 7 6 7 - 547.69 -1.22 .00 -.53 -3.50 -4.60 8 2 7 547.69 2.44 .00 .44 3.50 4.60 J U N C T I O N N O D E R E S U L T S JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE 1 .00 507.05 296.00 91.46 2 3.00 497.08 298.00 86.27 3 .00 493.25 296.00 85.48 4 750.00 490.05 296.00 84.09 5 57.00 489.95 298.00 83.18 * Lowest Pressure 6 780.00 492.46 296.00 85.13 7 .00 494.21 300.00 84.16 • EXHIBIT C Westfield Village, Phase 6 Water System Analysis S U M M A R Y O F I N F L O W S A N D O U T F L O W S ( +) INFLOWS INTO THE SYSTEM FROM FIXED GRADE NODES ( -) OUTFLOWS FROM THE SYSTEM INTO FIXED GRADE NODES PIPE NUMBER FLOWRATE 1 1590.00 NET SYSTEM INFLOW = 1590.00 NET SYSTEM OUTFLOW = .00 NET SYSTEM DEMAND = 1590.00 D A T A C H A N G E S F O R N E X T S I M U L A T I O N DEMAND C H A N G E S DEMANDS ARE CHANGED FROM ORIGINAL VALUES BY A FACTOR = 1.00 • 1 t- / I ' — - - 1--- - — .. — - I----- — ---- I -Et ; _--------- -- o '4 I ■•■■ MEMO Victodo Avenue n I tn 2 m 0 z. L../ ....._,!_-•■"---•.„!-!_•- .-e- _,.,. ,..,...,. ,_. „_ .-.. • MOM • • ' • ■■•• • di■ • =MD • / N) M■ .LT17_0! N Olm••_■ E1MM • ■••• • •■• • • mwm • 4 m o • Is *am arm ••••• . ...""""".”. 4 / 1 • 1 I 1 /1 1 I , i 11 I i / \ I 1 i 1 / g . / \ 1 / 7, / / ..„ --: . .-____, / N■1, et 1 61 I 03 • , . ,, ' / 7 o 4 ‘, , Snowdonce Court „ ? '1 0 I \ \ \ \ I , 1 I ; 1 I Z I _■,--- --____. - \ I ' \ \ , t %. • \ \ _-• .--- ---------t-1 1 4 1_, - \ 71-----E. - - --- 1 - ----,- — - t J / 1 i 1 , la,. II t , / " ---- r -J . i I 1 i , , 1 1 ...a • 1 / / , 1 i ■ 1 1 1 I ! t Ill i • V ? / 1 I i I 1 1 q r i - I - 1 i r T---r ------- T - / i i <A, \‘., --- 4 i i I 1 1 i i I i \ - --- —.1_4 1 1 1 i 1 i . /1 /-.., -• - ------ 1 1 4 1 1 1 i I 1 1 i I I I i I .... i , ! i i' ' -- • • 00 • 1 I 1 1 I 1 --1 1 I • • • • • — • — ....., ..._ • — • — • —. _ • — • — • .......... - .....,.." — 1 i I El II) / Ca N t —....,.«. ..... ...- .....-*--- i t ..N / t 1 : t 1 o' / i i f 1 1/ I/ % . ' ‘N... / / I - I I , i N / I // N N, / d / / ",.. . / I I de / / ---" 1 I I i I / 4 / 1 1/ I I' 1 4 I I , r hi 0 w 0 fr: 1 . r-- (11 . -ti H 0 0 a 2 ...._ a, 0 n. nu ch I i i Westfield Village Subdivision Phase 6 Addendum #1 to the i Original Water and Sewer Report submitted in conjunction with the Phase 6 Construction Drawings July, 2003 b �,. 659 k 'Vs 44 ici ttf- . 7/2 8/D ADDENDUM TO WATER AND SEWER ANALYSIS FOR WESTFIELD VILLAGE SUBDIVISION Submitted in conjunction with Phase 6 Construction Drawings Phase 1 of Westfield Village is nearing completion and the owner has decided that Phase 6 should be the next section of the subdivision to open. Plans for this phase call for 30 additional single- family residential lots. The water and sewer analysis that was prepared for Westfield Village analyzed Phase 1 -6 and made allowances for utility lines that were adequately sized to serve the entire subdivision. However, the assumption in those studies was that the subdivision would develop sequentially by phases and that each new phase would be contiguous to a previous phase. This is not the case with Phase 6. There is no part of Phase 1 that is contiguous to Phase 6, and the utility lines that serve Phase 6 will extend from lines that were previously constructed other subdivisions north of Westfield Village. Therefore, this analysis was prepared to demonstrate that the water and sewer systems being proposed in Phase 6 function adequately when they are not connected to the systems in Phase 1. Sewer System Analysis The primary sewer outfall for Phase 6 is a 12" sewer line that is being constructed with an adjoining subdivision (Edelweiss Gartens, Phase 5). The lots in Phase 6 of Westfield Village were included in the analysis and design of that system. A copy of that analysis is shown in Exhibit A of this addendum. The 30 lots in Phase 6 of Westfield Village are included in the 105 R -1 lots on Line CC -EE of the analysis. Water System Analysis The water supply for Phase 6 of Westfield Village will be a 12" line that was installed along Victoria Avenue from Graham Road southward to its existing terminus. The new water line in Phase 6 will connect to the 12" line and extend approximately 780 feet southward. Exhibit B shows a schematic drawing of Phase 6 and its proposed water system. A computer model of the Phase 6 water system was prepared using the same parameters in the original study. As required, two fire hydrants flowing at a rate of 750 gpm each were added to the model to study the systems performance under fire flow conditions. A printout of the output data is shown in Exhibit C. It indicates that the lowest pressure experienced under these conditions was 83 psi. This is well above the TCEQ minimum requirement of 20 psi. Therefore, we conclude that the water system being proposed for Phase 6 of Westfield Village is adequately sized and that it can function without connection to the system in Phase 1. It can also be concluded that flow characteristics will be improved when the remainder of the water system in Phases 2 -5 is completed. • T - ' Q • 0 B. ono v, v ° Q _ o a 0% � e e e o Q= K : - b § .- P 8. W a 0 1 ` a 1 ` a G7 8, k' 0 0 0 pp e�yy g', u. 0 0 0 0 '"+ ` , /.. ei1 O C O � 0. rt y 0 0 0 0 0 0 Li f 'I ei xw 000 g `i °w o el °o 8� g , ' • N � J , I/ U N 000 c U g o 00 0 0„ e �4, lb. 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O O O >+ � w U 0 0 0 U p y P 0 0 a te P — E O O O l g40 n a Q o u S Q o. rn --- • µ' 0 en u Q W 0 ea •-• N N m 0 0 0 0 E � el moil annelnunl3 o .o 0. smoL; a 3 a e tz N M to 0 0 C i g h Pa do[onaa I - 1I S r t--- _ Pad°P^aa I-1I S h 0 0 eo a 1 , !.....3 I'0 Q 0 0 0 c1 g leeasaan'°3 (-D Q v o- o o o U •n U V 4 y r o m ( 9) ° ('avma 9) U W ti pado[anaPun 1-1/ Q o 0 o w PadoPnaP °n (2I ¢ • C3 0 U' W f+. 0 U U W W P. U W w 0 i- U U W W w c a -a a e ,1+, < U W o .,• a 0 U Q U Q W T. w U W w w C ¢ w w • EXHIBIT C Westfield Village, Phase 6 Water System Analysis * * * * * * * * * * * * * * K Y P I P E * * * * * * * * * * * * * * * University of Kentucky Hydraulic Analysis Program * * for the Distribution of Pressure and Flows in Pipe Network Systems * * FORTRAN VERSION - 3.40 (01/02/91) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * DATE: 7/25/2003 TIME: 15:40:30 INPUT DATA FILENAME west6.dat TABULATED OUTPUT FILENAME west6.out ***************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** SUMMARY O F O R I G I N A L D A T A ***************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** U N I T S S P E C I F I E D FLOWRATE IS EXPRESSED IN GPM AND PRESSURE IN PSIG P I P E L I N E A N D P U M P D A T A PIPE NO. NODE NOS. LENGTH DIAMETER ROUGHNESS MINOR LOSS K FIXED GRADE (FEET) (INCHES) 1 0 1 1300.0 12.0 150.0 3.10 514.00 2 1 2 166.0 8.0 150.0 2.80 3 2 3 150.0 8.0 150.0 2.30 4 3 4 60.0 6.0 150.0 .70 5 4 5 350.0 6.0 150.0 .00 6 3 6 800.0 8.0 150.0 1.20 7 6 7 265.0 8.0 150.0 2.80 8 2 7 530.0 8.0 150.0 2.30 A SUCCESSFUL GEOMETRIC VERIFICATION HAS BEEN COMPLETED J U N C T I O N N O D E D A T A JUNCTION NUMBER DEMAND ELEVATION CONNECTING PIPES 1 .00 296.00 1 2 2 3.00 298.00 2 3 8 3 .00 296.00 3 4 6 4 750.00 296.00 4 5 5 57.00 298.00 5 6 780.00 296.00 6 7 7 .00 300.00 7 8 EXHIBIT C Westfield Village, Phase 6 Water System Analysis O U T P U T O P T I O N D A T A OUTPUT SELECTION: ALL RESULTS ARE OUTPUT EACH PERIOD S Y S T E M C O N F I G U R A T I O N THIS SYSTEM HAS 8 PIPES WITH 7 JUNCTIONS , 1 LOOPS AND 1 FGNS ****** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** S I M U L A T I O N R E S U L T S ****** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** THE RESULTS ARE OBTAINED AFTER 3 TRIALS WITH AN ACCURACY = .00060 S I M U L A T I O N D E S C R I P T I O N ( L A B E L ) Westfield Village Sub. Ph 6 Res.Demand =3 GPM /Residence Fire Flow = 2 @ 750 GPM (Nodes 4 & 6) July 2003 McCLURE ENGINEERING P I P E L I N E R E S U L T S PIPE NO. NODE NOS. FLOWRATE HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY HL /1000 1 0 1 1590.00 5.97 .00 .98 4.51 4.59 2 1 2 1590.00 5.49 .00 4.48 10.15 33.08 3 2 3 1039.31 2.26 .00 1.57 6.63 15.05 4 3 4 807.00 2.29 .00 .91 9.16 38.25 5 4 5 57.00 .10 .00 .00 .65 .28 6 3 6 232.31 .75 .00 .04 1.48 .94 7 6 7 - 547.69 -1.22 .00 -.53 -3.50 -4.60 8 2 7 547.69 2.44 .00 .44 3.50 4.60 J U N C T I O N N O D E R E S U L T S JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE 1 .00 507.05 296.00 91.46 2 3.00 497.08 298.00 86.27 3 .00 493.25 296.00 85.48 4 750.00 490.05 296.00 84.09 5 57.00 489.95 298.00 83.18 * Lowest Pressure 6 780.00 492.46 296.00 85.13 7 .00 494.21 300.00 84.16 EXHIBIT C Westfield Village, Phase 6 Water System Analysis S U M M A R Y O F I N F L O W S A N D O U T F L O W S ( +) INFLOWS INTO THE SYSTEM FROM FIXED GRADE NODES ( -) OUTFLOWS FROM THE SYSTEM INTO FIXED GRADE NODES PIPE NUMBER FLOWRATE 1 1590.00 NET SYSTEM INFLOW = 1590.00 NET SYSTEM OUTFLOW = .00 NET SYSTEM DEMAND = 1590.00 D A T A C H A N G E S F O R N E X T S I M U L A T I O N D E M A N D C H A N G E S DEMANDS ARE CHANGED FROM ORIGINAL VALUES BY A FACTOR = 1.00 Iv -o Q / I - -A-7.72.:-: .....-- A ------ -/— .. __—__ .......,c ...„,„......„70---- C> % , - - - OD i / 1 _ -- ) 1/ a ...._.-- — 3 wctoda Avenue • -------,-,. •I \ _ 11 'I • ....... ..• -..-... i .......-- . f .__ . ■■•_, ,- , . • ••■.,,,, ,---- -T CD 1 - , • • . _ - !----- . 1 It ./ I/ ( 7 \ . • ...• ' 1 I t / ) ••■• • i i • / \ \ 1 I Oa , 1 / \ i i C>,/ • ) Is / / . 1 i i 1 1 '. \ 1 1 _ .... • i C:› / \ , 1 1 \ 1 / .,---/ \ ... • • i f ■ " 1 I ) i / 1 _ L---- .... • ••... Court -..;:..i.,• ' — • Snowdonce / i ' ---,...., ' - --1- - t 1 lii i C) I AD II 1 $ .4 1 Ul .' / 1 _. .---\\:\........ f to . fr / --- -4-- 4 044. I i I 1 1 / 1 1 p 1 ._____71 • I „. , ___,.... , . \ ,..\... , i I 1 t _1 --F—J--- la , ..._ / i i . ----1----- 1 , j i — ..., 1 / I, / -----7- 1 ,c I / ___-,---1----1 : / 4 / , ' 1 I I a - ----- - 1— I , I I . / i I i I .// ....`' 1 ----- — _ _ _..... 1 - . 1 ,.,..., 1 1 .0' i .._ i 1 4 _____--- _ 1 , ..k. — ..... 1 I ____ I — I, — 1 _ - .••• 1 I ....•• ' • ■r. — / — , . _ I 1 .... • — ..._ ..... - „.,..... .., _. „.„ _- — ' -----: ...— . ,... .., co ,---- I I, Ns / ., I I N . t I I I ) , , / / I ; 1 ----,,....,, / / I / i 1-------/ 1 1 I .00 / I I ' 1 ! 1 1 / i t ! 1 - li i I 1 ( ii o (IT ., (di 11 ,1 1 0 2 0 a r•-• NI P Kj , CD , kn ;.,.• 2 , 3 c t I n 4. z 0 Pi ,.... a. m rr,