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Home My WebLink AboutSWP271949 (3)R-!943 CITY OF RENTON MEMORANDUM DATE: July 25, 1990 TO: Jack Crumley, Manager, Maintenance Services Division FROM: Dick Anderson, Manager. Utility Systems Division STAFF CONTACT: Randall Parsons, P.E., Utility Supervis V�10 Storm and Waste Water Utility Section SUBJECT: MAINTENANCE RESPONSIBILITIES OF DETENTION POND FOR SUMMERWIND DIVISION 2 After recently receiving additional information from the King County assessor's office, it has been discovered that the City does own the tract containing the detention pond for Summerwind Division 2. Therefore, contrary to my memo of July 13, 1990, maintenance of this pond is the responsibility of the City. To our knowledge, all other retention/detention facilities in the other Summerwind divisions will remain the responsibility of their respective Homeowner's Associations. If you have any questions, please call Randall Parsons at X-5548. 90-179:JDH:ps CC: Lynn Guttmann John Stein David Tibbot Gregg Zimmerman Don Erickson Lenora Blauman John Hobson Ron Straka Kim Scattarella Larry Warren, City Attorney Zanetta Fontes, Asst. City Attorney CITY OF RENTON MEMORANDUM DATE: July 13, 1990 TO: Don Erickson, Principal Planner ATTENTION: Lenora Blauman, Senior Planner FROM: Dick Anderson, Utility Systems Division Manager STAFF CONTACT: Randall Parsons, P.E. Utility Supervisor Storm Water/Waste 4ter Utility Section SUBJECT: CITY MAINTENANCE OF RETENTION/DETENTION FACILITIES FOR SUBDIVISIONS Contrary to past policy, which conflicted with City code, the City of Renton is not currently obligated or interested in accepting maintenance responsibilities of retention/detention facilities for subdivisions unless it is deemed necessary by the Director of Public Works. Although the City is authorized to accept maintenance duties subject to five conditions that include a three (3) year maintenance period by the developer and Council approval (per City Code 4-22-13 enclosed), at this time it is in the best interest of the City to insure the responsibility and cost of maintenance of the facilities on Homeowner's Associations for subdivisions. Of particular importance is this policy as it applies to all divisions of Summerwind. After researching all available City files, it has become clear that the City has no legal obligation to maintain any of the detention facilities within the Summerwind subdivisions. The following summarizes this research: Summerwind Division 1: The retention/detention facility is located on Tract "A" within this division. The language on the face of the recorded plat, sheet 7 of 7, reads "Ret./Det. vault dedicated to Summerwind Homeowner's Association together with an ingress egress, utilities esm't granted to the City of Renton." Although an easement is granted to the City, there is no language within the recorded plat obligating the City to accept maintenance of the enclosed retention/detention facilities and there are no letters in the files committing the City to maintain these. Maintenance of Retention/Detention Facilities for Single Family Developments Page 2 Summerwind Division 2: The retention/detention facility for this Division is located on Tract "X". Although the language on the recorded plat, within Tract "X", reads "Detention pond and lift station dedicated to City of Renton", the "Quit Claim Deed" for Tract "X" to the City of Renton was not recorded because Storm Water policy's regarding maintenance had not been developed at that time and the formal procedures required by the Code were not followed. Summerwind Division 3: The retention/detention facility for this division is located in an easement to the west of, and abutting Lot 32. The language on the recorded plat, sheet 5 of 14, reads "Ingress, egress, maintenance and storm drainage easement". Nothing with respect to ownership or maintenance responsibilities is written on the recorded plat. Summerwind Divisions 4 & 5: The detention facility which handles drainage in both Divisions 4 and 5 is located on a tract of land south of both divisions. Summerwind Division 4 has been recorded, and contains no language pertaining to the maintenance of the detention facility for this plat. Division 5 has not received final approval and has not been recorded with the County. Before Division 5 will be accepted for final plat approval, language should be included to deed the detention facility tract to the Summerwind 4 and 5 Homeowner's Associations for ownership and maintenance. Through the application of the previous policy, which was not consistent with the Code, the City of Renton has performed some maintenance of the retention/detention facilities for Summerwind Divisions 1, 2 and 3, future maintenance is the responsibility of the respective Homeowner's Associations. Future Subdivisions: Future subdivisions should contain specific language on the preliminary plats and the recorded plats to identify ownership and maintenance responsibilities for retention/detention systems. A Homeowner's Association should be formed for each plat to dedicate the responsibility for ownership and maintenance purposes in order to assure that the facilities are properly maintained and to place the liability upon the homeowners rather than the City. We recommend that their Homeowners Association be incorporated under the laws of the State of Washington. These papers of incorporation should hold the developer accountable until the Homeowner's Association is fully established. In the upcoming Surface and Storm Water Comprehensive Plan, a system for inspecting private retention/detention facilities and enforcing their maintenance will be developed. In addition, a program for City maintenance of subdivision facilities will be examined, in particular the costs and revenue collection aspects of such a program. Maintenance of Retention/Detention Facilities for Single Family Developments Page 3 If you have any questions, please contact Randall Parsons, Utility Supervisor, Storm Water/Waste Water Section at Extension 5548. JH:ps Enclosure CC: Lynn Guttmann Randall Parsons Jack Crumley John Stein David Tibbot Gregg Zimmerman Lenora Blauman John Hobson Ron Straka Kim Scattarella Larry Warren. City Attorney Zanetta L. Fontes, Assistant City Attorney 90-136:JH:ps - 4-22-12 4-22-16 C) cost to the City and which shall protect the City of Renton from any liability, cost or expenses for any accident, negligence, failure of the facility, omission or any other liability whatsoever relating to the construction or maintenance of the facility. Said liability policy shall be maintained for the duration of the facility by the owner of the facility, provided that in the case of facilities assumed by the City of Renton for maintenance pur- suant to Section 4-22-7 of this Ordinance, said liability policy shall be terminated when said City maintenance responsibility commences. 4-22-13: CITY ASSUMPTION OF MAINTEN- ANCE: The City of Renton is authorized to assume the maintenance of retention/detention facilities after the expiration of the three (3) year maintenance period in connection wifh the subdivi- sion of land if: A. All of the requirements of Section 4-22-9 have been fully complied with; B. The facilities have been inspected and approved by the Department after their first year of operation; C. The surety bond required in Section 4-22-12 herein has been extended for one year cover- ing the City's first year of maintenance; D. All necessary easements entitling the City to properly maintain the facility have been conveyed to the City; E. It is recommended by the Public Works Direc- tor and concurred in by the City Council_ that said assumption of maintenance would be in the best interests of the City. The owner of said property shall throughout the maintenance period notify the City in writing if any defects or improper workings of the drainage sys- tem has come to his notice. Failure to so notify the City shall give the City cause to reject assumption of the maintenance of the facility at the expiration of the three (3) year maintenance period, or within one year of the discovery of the defect or improper working, whichever period is the latest in time. approval of drainage plans prior to the effective date of this Ordinance re -assesses the facilities and/or plans so constructed and/or approved and demonstrates, to the Director's satisfaction, total compliance with the requirements of this Ordinance the City may, after inspection, approval and acknowledgment of the proper posting of the required bonds as specified in Section 4-22-12, assume maintenance of the facilities. 4-22-15: PROCEDURES AND GUIDELINES: All storm drainage design and calculations shall conform to Requirements and Guidelines for Storm Drainage Control in King County as prepared by King County Division of Hydraulics, February, 1977, except as may be amended by the City. Said requirements attached hereto by reference and incorporated herein as if fully set forth. (Ord. 3174, 11-21-77) 22-16: VARIANCES: Variance Requirements: The Director or his representative may recommend to the Hearing Examiner a variance from the requirements of this Ordinance when, in his opinion, undue hardship may be created as a result of strict compliance with the provisions of this Ordinance. The Examiner shall comply with the appropriate public notification, rules and time requirements of Section 4-8. The Hearing Examiner may prescribe conditions that he deems necessary to be desirable for the public interest. No variance shall be granted unless the Examiner finds: 1. That there are special physical circumstances or conditions affecting said property such that the strict application of the provisions of this Ordinance would deprive the applicant of the reasonable use or development of his land; 2. That the variance is necessary to insure such property the rights and privileges enjoyed by other properties in the vicinity and under similar circumstances; and 3. That the granting of the variance will not be detrimental to the public welfare or injurious to other property in the vicinity. 4-22-14: R.ETROACTMTY RELATING TO CITY MAINTENANCE OF SUBDIVI- B. Criteria: Before the Examiner grants a SION FACILITIES: If any person constructing variance, he shall make a determination that retention/detention facilities and/or receiving DISR{SAII •T/ Ir YaCt A IYt 11.P�tD A Y1.r{NtPL A ar .ILL Pert t a N• �s. w.N�ti wr OttM yrnot � .AP'. IN 4Ktt)A. AT.e IW4iM►1b.iP 5, It oll 1 �TM ,r r' T2�G fi `C t POND W(AS-eWLT) A I nt. is ti µw.L. W{Wr• � tITAKe\ POND 5tCTION A -A r. r•r nu0 OOP D t)'tubp. y'ubY [UYW L'uc. rtW�y [rwwMA suruaau . � [[MI'42NAYW r{• r� .1 .. [n NM[ fq'rA i AYMUK MK/ [ N. I.UP N[[P L1W Wl�[�v/Nrh [MNW pGVAiIw MLV LIFT STATION �RDLtT view ROCKtRY 6 CAT(#OASIN /l0 j I. li[•R-AOtI•TA P4)M RfSbUCTOR XTAIL x' tP°°No eeiPx`°w{rlsl sYepe i e'er i W 40 {GA]1) 0x0 NE YE'+t STON{ -OT• w vNl 250 [. •.E{VIG TEMrEYATUtt. ° j. CJLP. - H-30tt ALCLAD ALUMINUM f YtY / io0p µtW 0[tlGl{Y tY11t rttrMl it YD•O.j.Ow-bi— `RtNtltl A AS11{O 00[Y �. ftlt� D.. ruPl.. R rrnca Ittu YVYutw utf.uii a i iP�•`� 0 •� + �.N. I Y�v maw'. f 110Y awY tfv.{OOt r r�a,!•svxti I YID' SID& VIEW r[rcc C61M4C{G47 LIFT GATE �1L "A "2 y ovea.Pic.i . O19PCAYA- TaG �N y R \ I NV.rO OOtY �. yrtl 7�1 I ' '/[+'+SECTION Y-Y Nib PONb S5MTION 15-B �/Y• t b 1' a+[^4�`y '7�// � AS BUILT d—ev '� v [itic rcvi IaY OBTERBAARD • ROBINSON COM{WTINt W{IM[[M - OUMMER WIND �n) v�-t Ii1. {{ttOC.ING. ..trMtTKWct[.• ttLLcvlr,N•.rrotN DETAIL tJLJEET NMN[: {n-MM 2 DIV. CITY OF PENTpI WASNINGT011 {nA &. P"-101 f + OSTERGAAR.D • ROBINSON & ASSOC. INC. CONSULTING ENGINEERS 3805 108TH AVE. N.E., SUITE 106, BELLEVUE. WA98004 (206) 827.5854 MARYSVILLE: (206) 338-0202 PRELIMINARY DRAINAGE BASIN STUDY 2( FOR THE PLAT OF SUMMER WIND 3, 4, & 5 87-144 8/21/87 REVISED 9/23/87 STORM WATER LMU7Y RECEIVED SEP 24 1987 04 ir NOS �y f, rig /7 1 1'f % — �• rot — HAD 04 3 OJI G ►Il�p '.� �' Ili' • j l 1 .'''� yiu'�' •its i� r•� � `x' f , .far_ Q 'H .,fog ,w3 �q9 ^ 46� tr Air ••hP •,Gr 1 7rr 1 as .47.E (A\ �1 O �z �e F J I a r as 1� Rr I'"S�?r a i a��'e� "�'y • 'S �1�� E p w fir.. wr j; I It A LTOto C JOB TR-20 ECON SUMMARY YOPLOTS TITLE EAST HAIEN POND, POST DEVELOPED RESTRICT. 2-100 YR STORM (yAZEN4.INP) 2 ISECTN 001 1.0 8 400. 0.0 0.0 g 400.1 10. 100. g 400.2 :0. 200. g 400.3 30. 400. 9 ENDTBL 3 STRUCI 01 8 391.68 0.0 0.0 @ 392.00 2. .0642 C @ 393.5 3. 1.3979 8 395.00 9. 3.4905 8 397.5 30. 8.8351 r 9 ENDTBL 3 STRUCT 02 9 ENDTBL 6 RUNOFF 1 001 1 .3061 16. 3.11 6 RUNOFF 1 001 2 .1137 80. 2.22 6 ADDHYD 4 001 1 2 3 6 RESVOR 2 01 3 4 391.68 6 RUNOFF 1 001 5 .0467 91. .231 6 RUNOFF 1 001 6 .0604 79. 2.33 6 ADDHYD 4 001 5 6 7 6 ADDHYD 4 001 7 4 1 6 RESVOR 2 02 1 2 390. ( ENDATA 7 iNCREN 6 .12 7 COMPUT 7 001 02 0.0 2.0 1. 3 2 ( ENDCMP 1 7 COMPUT 7 001 02 0.0 2.5 1. 3 2 ENDCMP 1 (' 7 COMPUT 7 001 02 0.0 3.0 1. 3 2 ENDCMP 1 7 COMPUT 7 001 02 0.0 3.5 1. 3 2 ENDCMP 1 7 COMPUT 7 001 02 0.0 4. 1. 3 2 ENDCMP 1 ( ENDJOB 2 t++++ttt++++tt+t++++ttt+t+tt++tEND OF 80-80 LIST}+ttt+t++++t+tt+t++t+++t++tt+tt+ TR20 XEA 09/23/87 REV 10/02/84 EAST HAZEN POND, POST DEVELOPED RESTRICT. 2-100 YR STORM (HAZSN4.INP; SOB 1 SUMMARY PAGE 4 SUMMARY TABLE 1 - SELECTED RESULTS OF STANDARD AND EXECUTIVE CONTROL INSTRUCTIONS IN THE ORDER PERFORMED (A STAR(f) AFTER THE PEAK DISCHARGE TIME AND RATE (CFS) VALUES INDICATES A FLAT TOP HYDROGRAPH A 11UESTION MARK(?) INDICATES A HYDROSRAPH WITH PEAK AS LAST POINT.) SECTION/ STANDARD RAIN ANTEC MAIN PRECIPITATION PEAK DISCHARGE STRUCTURE CONTROL DRAINAGE TABLE MOIST TIME - ------------------- --- RUNOFF ----------------------- - ID OPERATION AREA # COND INCREM BEGIN AMOUNT DURATION AMOUNT ELEVATION TIME RATE RATE (99 MI) (HR) (HR) (IN) (HR) (IN) (FT) (HR) (CFS) (CSM) ALTERNATE 0 STORM 0 4 N! :y XSECTIDN 1 RUNOFF .31 3 2 .12 .0 2.00 24.00 .41 --- 13.20 5.06 16.5 XSECTION 1 RUNOFF .11 3 2 .12 .0 2.00 24.00 .56 --- 10.04 3.29 20.9 XSECTION I ADDHYD .42 3 2 .12 .0 2.00 24.00 .45 400.08 11.53 7.81 18.6 STRUCTURE 1 RESVOR .42 3 2 .12 .0 2.00 24.00 .45 394.40 21.96f 6.61f 15.8t s XSECTION 1 RUNOFF .05 3 2 .12 .0 2.00 24.00 1.16 --- 8.00 9.31 179.0 XSECTION I RUNOFF .06 3 2 .12 .0 2.00 24.00 .49 --- 10.44 1.33 22.1 XSECTION f ADDHYD .11 3 2 .12 .0 2.00 24.00 .70 400.08 9.00 8.36 78.1 XSECTION 1 ADDHYD .53 3 2 .12 .0 2.00 24.00 .51 400.09 21.91 8.85 16.8 ;r STRUCTURE 2 RESVOR .53 3 2 .12 .0 2.00 24.00 .51 -- 21.9! 8.85 v !6.8 XSECTIDN 1 RUNOFF .3! 3 2 .12 .0 2.50 24.00 .69 --- 11.07 9.72 31.7 .t r� XSECTION i RUNOFF .fl 3 2 .12 .0 2.50 24.00 .39 --- 9.82 6.05 53.2 .i„ XSECTION STRUCTURE 1 ADDHYD .42 3 2 .12 .0 2.50 24.00 .75 400.15 10.72 14.98 35.7 : 1 RESVOR .42 3 2 .12 .0 2.50 24.00 .73 395.23 I8.90 10.94f 26.1 i XSECTION 1 RUNOFF .05 3 2 .12 .0 2.50 24.00 1.61 --- 9.00 f1.84 253.5 XSECTIDN f RUNOFF .06 3 2 .12 .0 2.50 24.00 .79 --- 10.03 2.60 43.0 XSECTION 1 ADDHYD .11 3 2 .12 .0 2.50 24.00 1.15 400.12 8.00 12.12 113.2 XSECTION STRUCTURE I ADDHYD .53 3 2 .12 .0 2.50 24.00 .91 400.14 17.04 14.43 ,-127.4 2 RESVOR .53 3 2 .12 .0 2.50 24.00 .81 --- 17.04 14.43 27.4 XSECTIDN ! RUNOFF .31 3 2 .12 .0 3.00 24.OD 1.01 --- f0.7B �5 -T51.3 XSECTIDN 1 RUNOFF .11 3 2 .12 .0 3.00 24.00 i.25 --- 9.72 9.28 91.6 y; XSECTION 1 ADDHYD .42 3 2 .12 .0 3.00 24.00 1.08 400.24 10.45 23.93 57.0 STRUCTURE 1 RESVOR .42 3 2 .12 .0 3.00 24.00 1.05 395.85 16.30 !6.12 38.4 XSECTIDN 1 RUNOFF .05 3 2 12 .0 3.00 24.00 2.07 --- 7.99 15.46 331.1 XSECTION ! RUNOFF .06 3 2 .12 .0 3.n) 24.00 1.1? v --- 9.89 4.13 68.4 X5ECTION 1 ADDHYD .'! - a ? _ .12 ,0 J.00 24.00 1.54 400.'6 9.00 !b.'?0 151.3 71 XSECTIDN 1 AOHYD .53 +� ... .0 3.00 24.00 1.:5 400.21 15.47 21.08 �o 40.0 STRUCTURE 2 RESVOR .2 2 12 .12 .0 :.LO 24 ^0 1 '� .J --- 'S.47 21.08 � XSEr,TI09 ! RUNOFF .3! .0 3.50 24.00 '.37 --- i0.b3;92 14.8 XSEC':ION 1 RUNOFF .0 3.50 ?4.00 1.64 --- 9.66 '2.83 '12.8 XSECTIDN 1 ADDHYD .�= .0 T.50 ?4.+;3 1.44 400.4 '0.29 34.!4 •81.3 =TRUC" RE '. -cS!ira . 42 - 2 - _0 :. 24. 0 :.40 396.57 14.84 ".18 2.8 �1 XSECTM.N 1 RUNOFF- SS 3 ..� n v .50 24. w" 2.54 --- 7 99 _ - 10_f- 409.E < SUMMARY TABLE 1 - SELECTED RESULTS OF STANDARD AND EXECUTIVE CONTROL INSTRUCTIONS :N THE ORDER PERFORMED (A STAR(*) AFTER THE PEAK DISCHARGE TIME AND RATE (CFS) VALUES INDICATES A FLAT TOP HYDROGRAPH A QUESTION MARK(?) INDICATES 4 HYDROGRAPH WITH PEAK AS LAST POINT,) SECTION/ STANDARD RAIN ANTEC MAIN PRECIPITATION a DISCHARGE STRUCTURE CONTROL DRAINA6E TABLE MOIST TIME PEAK �I CHARSE ------------------------ RUNOFF ___ ID OPERATION ------ ----------------------- AREA # COND INCREM BEGIN AMOUNT DURATION AMOUNT ELEVATION TIME RATE RATE (SQ MI) (HR) (HR) (IN) (HR) (IN) (FT) (HR) (CFS) (CSM) ALTERNATE 0 STORM 0 XSECTION XSECTION 1 1 RUNOFF ADDHYD .06 3 3 2 ,12 .0 3.50 24,00 1,50 '-- 9,81 5.86 97,0 XSECTION 1 ADDHYD •11 .53 3 2 2 .12 .0 r,s 4 4.00 1.95 400.20 8,00 20,50_ - 191.4 STRUCTURE 2 RESVOR .53 3 2 .12 .0 3.50 24,00 1.51 400.29 14.45 28.70 54,5 ✓ XSECTION 1 RUNOFF .3I 3 2 .12 ,0 3,50 24,00 1.51 14.45 22.70 54.5 .12 10 4.00 24,00 1.74 _- 10.547'" 100.2 XSECTION XSECTION I 1 RUNOFF ADDHYD .11 3 3 2 2,04 _ - 9.61 16.61 146.1 STRUCTURE 1 RESVOR .42 .42 3 2 2 .12 ,0 4.00 24,00 l07.9 i XSECTION 1 RUNOFF .05 3 2 .12 .0 4.00 24.00 1.7B 397.38 14,OQ 2A.gg 69.0 XSECTION 1 RUNOFF .06 3 2 .12 ,0 4.00 24.00 3.01 _ 7•49 22,81 488.5 .12 .0 4.0 24,00 1,89 --- 9.75 7.72 127,8 XSECTION XSECTION 1 1 ADDHYD ADDHYD .11 3 3 2 ,12 .0 4, 0 24.0 2.38 400.25 8,44 24.?2 232.1 STRUCTURE 2 RESVOR .53 3 2 2 .12 ,0 4.00 24,00 1,90 400,37 13.50 37.18 10,6 .53 .12 .0 4,00 24.00 !.90 --- 1- �a.50 37.16 70.6 -�_ J i I I I >I fn r I I ll. 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C, re4faS ti an�� •�5� 0�0l� . , , �,r '- LN VON Eloorit1Fr {1},p} LIST OF INPUT DATA FOR 7R-20 HYOROLOSYtt+t+ttttttttt++++ JOB TR-20 ECDN SUMMARY NOPLD?S TITLE EAST HAZEN POND, POST DEVELOPED RESTRICT. 2-100 YR STORM (HAZEN6.IW f� 2 XSECTN 001 1.0 8 400. 0.0 0.0 8 400.1 10. 100. j 8 400.2 20. 200. 8 400.3 30. 400. 9 ENDTBL 3 STRUCT 01 A 391.68 0.0 0.0 8 392.00 2. .0642 9 393.5 s 3. 1.3979 8 395.00 8. 3.4905 - 8 396.25 22. 6.1628 ( 8 397.5 30. 8.8351 9 ENDTBL 3 STRUCT 02 T 9 ENDTBL 6 RUNOFF 1 001 1 .3061 76. 7.11 6 RUNOFF 1 001 . .1137 90. 2.22 6 RUNOFF 1 001 3 .0467 91. .231 6 ADDHYD 4 001 1 2 4 6 ADDHYD 4 001 3 4 5 t 6 RESVOR 2 01 5 6 391.68 6 RUNOFF 1 001 7 .0604 72. 2.33 6 ADDHYD 4 001 6 7 1 t 6 RESVOR 2 02 1 2 390. ENDATA ? INCRE4 6 .12 7 COMPUT 7 001 02 0.0 2.0 1. 3 2 ENDCIP 1 7 COMPUT 7 001 12 0.0 ..5 1. 3 2 ENDCmP 1 7 CCMPUT 7 001 02 0.0 3.0 i. i 2 ENDCMP 1 7 CCMPU1 1 001 02 0.0 3.5 1. 3 2 =NDC"P . ;NDJOB 2 t++++++++ ++t+++++++t+++++t++++END OF �-0-20'ISTt+++++++t+tt++t+t+t+ttt+++t+tt++ l TR20 Xc9 09/2:1�7 :AST HAZEN POND. POST DEVELOFED RESTRICT. 2-100 YR STORM (FAiEN6.INP) CB 1 �� S.MMARY REY PAGE 4 SUMMARY TABLE 1 - SELECTED RESULTS OF STANDARD AND EXECUTIVE CONTROL INSTRUCTIONS :N THE ORDER PERFORMED (A CTAR(*) AFTER THE PEAK DISCHARGE TIME AND RATE (CFS) VALUES INDICATES A FLAT TQP HYDROGRAPH A DUESTION MARK(?) INDICATES A HYDROGRAPH WITH PEAK AS LAST POINT.) SECTION/ STANDARD RAIN ANTEC MAIM PRECIPITATION PEAK DISCHARGE STRUCTURE CONTROL DRAINAGE TABLE MOIST TIME ---------- ------ ------ RUNOFF ----------------------------------- ID OPERATION AREA I COND INCREM BEGIN AMOUNT DURATION AMOUNT ELEVATION TIME RATE RATE (So MI) (HR) (HR) (IN) (HR) (IN) (FT) (HR) (CFS) (CSM) ALTERNATE 0 STORM 0 -------- XSECTION ----- 1 ------------- RUNOFF .31 3 2 .12 .0 2.00 24.00 .41 --- 13.20 5.06 :r XSECTION 1 RUNOFF .11 3 2 .12 .0 2.00 24.00 .56 --- 10.04 3.29 Z8.9 XSECTION 1 RUNOFF .05 3 2 .12 .0 2.DO 24.00 1.16 -- 9.00 9.31 178.0 XSECTION 1 ADDHYD .42 3 2 .12 ,0 2.00 24.00 .45 400.02 11.53 7.81 18.6 XSECTION 1 ADDHYD .47 3 2 .12 .0 2.00 24.00 .52 400.10 11.04 9.76 20.9 STRUCTURE 1 RESVOR .47 3 2 .12 .0 2.00 24.00 .51 394.99 21.20 7.92f 17.0 XSECTIDN 1 RUNOFF .06 3 2 .12 .0 2.00 24.00 .48 -- 10.44 1.33 22.1 XSECIION 1 ADDHYD .53 3 2 .12 .0 2.00 24.00 .51 400.09 20.16f 8.93f 16.9 ` STRUCTURE 2 RESVOR .53 3 2 .12 .0 2.00 24.00 .51 --- 20.16f 8.93f '� 16.9 XSECIIQN 1 RUNOFF .31 3 2 .12 .0 2.50 24.00 .69 --- 11.07 9.72 31.7 n XSECT.ION 1 RUNOFF .11 3 Z .12 .0 2.50 24.00 .99 --- 9.82 6.05 53.2 XSECTION 1 RUNOFF .05 3 2 1,7 - .0 2.50 24.00 1.61 --- 8.00 11.94 253.5 XSECTION i ADDHYD .42 2 .11 .0 2.50 24.00 .75 400.15 10.72 14.98 35.7 XSECTION 1 ADDHYD .47 3 2 .12 0 2.50 24.00 .33 400.18 10.56 '7.86 38.3 7 STRUCTURE 1 REEVOR .47 3 2 .12 .0 2.50 24.00 .O1 395.50 16.32f 13.58f 29.1 XSECTION 1 RUNOFF .06 3 2 .':2 .0 2.50 24.00 .79 --- 10.03 2.60 43.0 XSECTION 1 ADDHYD .53 3 2 .12 .0 2.50 24.00 .21 400.'5 15.96f 15.31f 29.1 STRUCTURE 2 RESVOR .53 3 2 .12 .0 2.50 24.00 .81 --- 15.96f 1_ 5.31+ _ 29.1 XSECTION I RUNOFF .31 3 2 .12 .0 3.00 24.00 1.01 --- 10.78 15.85 51.8 XSECTION 1 RUNOFF .11 3 2 .12 .0 3.00 24.00 1.25 --- 9.12 9.28 81.6 XSECTION 1 RUNOFF .05 3 2 .12 .0 3.00 24.00 2.07 --- 7.99 15.46 331.1 XSECTION 1 ADDHYD .42 3 2 .12 .0 T.00 24.00 1.09 400.24 10.45 23.93 57.0 XSE.1 1 ADDHYD .41 3 2 .12 .0 3.00 24.00 1.18 400.28 10.42 27.63 59.2 STRUCTURE 1 RESVOR .47 2 .12 10 C.00 24.00 ..15 396.10 14.14 20.3C 43.5 XSECTION 1 RUNOFF .06 3 2 .12 .0 3.00 24.00 1.13 --- 9.99 4.13 69.4 XSECTION 1 ADDHYD .53 3 _ .12 .0 3.00 24.;O .i5 400.23 13.E2 22.89 43.4 S TEU'wiURE - REEVOR .33 _ ..2 .0 �,ii0 4.00 ..15 --- 13.82 22.89 '� 43.4 ra XSECTION '. RL!iOFF .31 ? 2 .12 .50 24.00 1.37 --- 10.63 22.9' 74.8 XSECTION 1 RUNOFF .11 2 .12 .0 3.50 24.00 .64 --- 9.66 '.2.?3 112.8 XSECTION RUNOFF 05 2 .12 .0 3.°'' 24.'0 2,54 --- 7.99 19.13 409.61-4 XSEC'ION 1 ADD'r,uD .»Z _ 12 .0 3.50 24.J1 .44 00.v4 10.24 14."4 9'..3 '.SECT_ON A HyD .41 _ .12 .0 3.50 <4.:0 5 400.39 10.10 3S.E7 53. �z U TR20 XED 09/23187 EAST HAZEN POND, POST DEVELOPED RESTRICT. 2-100 YR STORM (HAZEN6.INP) JOB 1 SUMMARY r REV 10/02(84 PAGE 5 SUMMARY TABLE 1 - SELECTED RESULTS OF STANDARD AND EXECUTIVE CONTROL INSTRUCTIONS IN THE ORDER PERFORMED lA STAR(}) AFTER THE PEAK DISCHARGE TIME AND RATE (CFS) VALUES INDICATES A FLAT TOP HYDROGRAPH A DUESTION MARK(?) INDICATES A HYDROGRAPH I11TH PEAK AS LAST POINT.) r SECTION/ STANDARD RAIN ANTEC MAIN PRECIPITATION PEAK DISCHARGE STRUCTURE , CONTROL DRAINAGE TABLE MOIST TIME ---- -------------- ---- RUNOFF ID OPERATION AREA # COND INCREN BEGIN AMOUNT DURATION AMOUNT ELEVATION TIME RATE (SR MI) (HR) (HR) (IN) (HR) (IN) (FT) (HR) (CFS) ALTERNATE 0 STORM 0 STRUCTURE 1 RESVOR .47 XSECTION 1 RUNOFF .06 XSECTION 1 ADDHYD .53 STRUCTURE 2 RESVOR .53 !SECTION 1 RUNOFF .31 RATE (CSMI ., 3 2 .12 .0 3.50 24.00 1.51 3%.97 13.97 26.63 57.1 3 2 .12 .0 3.50 24.00 1.50 -- 9.91 5.86 97.0 3 2 .12 .0 3.50 24.00 1.51 400.30 13.49 30.04 57.0 3 2 .12 .0 3.50 24.00 1.51 --- 13.49 30.04 \-' 57.0 3 2 .12 .0 4.00 24.00 1.74 --- 10.54 30 67 100.2 XSECTION 1 RUNOFF .11 3 2 .12 XSECTION 1 RUNOFF .05 3 2 .12 XSECTION 1 ADDHYD .42 3 2 .12 XSECTION i ADDHYD .47 3 2 .12 STRUCTURE ! RESVOR .47 3 2 .12 XSECTION I RUNOFF .06 3 2 .12 XSECIION I ADDHYD .53 3 Z .12 STRUCTURE 2 RESVOR .53 3 2 .!2 .0 4.00 24.00 2.04 --- 9.61 .0 4.00 24.00 3.01 --- 7.99 .0 4.00 24.00 1.92 400.45 10.18 .0 4.00 24.00 1.94 400.51 10.07 .0 4.00 24.00 1.90 -59^U. D4,, 13.79 .0 4.00 24.00 1.B9 --- 9.75 .0 4.00 24.00 1.90 400.38 13.28 .0 4.00 24.00 1.90 --- 13.28 16.61 146.1 22.91 488.5 45.31 107.9 51.00 109.3 33.47 71.7 7.72 127.8 37.76 71.7 37.76 'q- 71.7 OSTERGAARD • ROBINSON & ASSOC. INC. CONSULTING ENGINEERS 3805 108TH AVE. N.E., SUITE 106, BELLEVUE, WA98004 (206).WPOW 9- . MARYSVILLE: (206) 659.6329 PLAT OF SUNSET TRAILS LIFT STATION Job No. 86-101 Date: 4-21-86 �Q p. OSTFR� 'V � ••�'oF •wASti ., 99�, 000. VS/ONAL APR. 2 1 1985 sZ11,154`7 r,,q4 /L._s L /FT ST,4r/On/ DETERMINE CiPM A/0, OF �E3/D�/Y�P3 = 72 A 041,, 96' 4 PER30I40 IRI S . @ /00 c: �q �PE�QSoN /rya Y .4S,46,ww E A f'eFAot-' j'AGTcW off' .3 (72) (4) �1/00) (/3) _ bo L7PW / 4 40 iA41,,- kl Do ?C&,A4 F!5- C.raPAe& PIA �wr Ale- 4 7.48 4 '' D<A — fl, dB O, dW 7 Aow. srve q6,C ) PER C�r� Df- RE,,JrVAJ "1,DAAe4Q ?4.41 r r� %v�2 HAe fir��ZioG�� Fo.�Z �J Si.., laces FAQ ivy �-SiG�-� =�� 4 •a, (71 70 �7 ��R� � = - - v If7a ,QEz yjl0/►'! Pun* $Woo Now Doo" Mop 114 . elf is �-► in SEWAGE WET WEI-� DESIGN CHART TYY CHART INDICATES STORAGE CAVACITGS Or VARIOUS DIAMLTLR CY'LRLDRICAL WET &ELLS WITH SLOT MO OR TUNNELED DOTTOLJ/. STCR• AGE VOLUME BETJLLI: HIGH AND LOW Lr VEL SETTINGS AEOUI.1) NUMER- ICALLT Bt EQUAL TO Tllt CA►ACITY OY ONE SC'.1AGS 1 UMV IN CILLON/ PER MINUTE, I/a• D••y. Nr••1; Y.OWEVER, ThC MINIMUM D1rrERLNTIAL B ET aELN HIGH AND LOW LEVEL SETTINGS MUST hE 1 FEET FOR I'ROYtR OPERATION OF THE LIDUID LEVEL CONTSOLLEB. Tilt MINIMUM LAW WATER LEVEL MUST Ut 1 rEET ABOVE BOTTOM OF THE PUMP SUCTION LINE TO MAINTAIN PUMP PRIME. TO DZTLA►UHt THC MINIMUM DIFFERENCE IN ELEVATION BETWEEN THE INr LUCNT PWt AND THE BOTTOM OF THL WET WELL ADD 1 FELT FOR MINIMUM LOW WATER LEVEL, PLUS 1 FEET FOR MINIMUM DVrERENTIAL BZT'YLEN LOW AND HIGH WATER LEVELS. R THE STORAGE VOLUME BETWLZW THE MINIMUM LAW AND WINS WATER LEVENLS FOR TNL DLAM- ETtR WET WELL CHOSEN EQUALS OR EXCt CDS THE UMERICAL CAPA. CITY or ONE jump IN GALLON/ PLR MINUTE, THL MINIMUM DVf ERLNCZ IN LLZVATION DETWtEN TIiL INFLUENT P11C AND THE BOTTOM Or THE WET WELL WILL BE S IEEE. IF THE STORAGE VOLUME IS l.Ll/ THAN THE CAI ACITT Or ONt PUMP TNt DEPTH OR DIAMETt1 Or THE WET WELL SHOUL.D BE INCAWZD. #OR ►XAM1 LLB ASSUMr. TIIE MAXIMUM DESIGN FLOW ■ 7% O\LLOW FLR R�UYi�FK�TNE RCASONS 0117L01tD IN THE DESi1N NOTES THE MINI. MUM RECOMMENDED UWAIIIJ. 1-UM1• CAPACITY 0 106 G.I.M., SOU0 1• 0. ,M. /'OYES. FROM THE DIAGRAM FOR THE 9'K L0 0'• DLVMZTZR WL'T WELL THE 1 /T' G ►OT OVER TIIr. MINIMUM LOW WAT/R LEVEL CONTAJIS 91 OAL LOSS rOR A TOT.SI L'SEAhLE STORAOC OF I" GALLO.'S DETWECN MINIMUM LOW A.YD MIN VM II SOH WATCH LEV1J t. "IE Ml ILMUM IUMV CYCLE (S.. D—S. N.•.) WILL 0L. AYSROXIM,ST SLY 7, MINUTES, .1ENCC, TKE MINIMUM WATER LEVELS RATHER THAN Tl1E MINIMUM STORAGE OETEAMINES THL DESIGN. USE A J FOOT DIAMETLR WET WELL WITI: MINIMUM DQrEAINCL IN tLCVATSON IS LTWLEN THE INrL.U::NT LJNt AND THE BOTTOM Or TNC WET WELL Or 4 •01. E.S6 ASUII•rl T. . 111 O.11". I'0" E•r6 AA4%l..I Far 99 0.lun. lt.I C.. Ft. . I11 G.11— M I.. NISL W.S.• Lard MI•.. NIVA r•Io L•..1 a 17 C.. rl . 1/.01 C., rl , 110 G.lw. r0 1'P' � 1'0" MSa JI'�- rul 11 Cu. R. • IS. 56 C. Ft. 111 G.Lw J'0" Yb. DIII•r•r 41 1•0" 91 C.Ilun. Mu. Iw W.— L.. �4 M W. l.. L. r.r I L.. 1 y I.7S •.. H.ni• rlwy '•�\ L7S `'1 •.1.01. .yr.s. - 0. IS C.. T. _�• a Pwa s,..lian LIn. � c�' y��Lt=7' .. �+=•�;'., Pvin w<11.. Lm. 9'0" Du- W.I WIL WI-4 L In, 401 A"Ubn.I r— . 176 G.11— S0. 15 C.. FI. . 176 G.1w.. 50. 10 C.. rt. . 171 G.11... 41.90 Ca, Ft. . IS$ G.11••. 4� 41, 14 Ca rt. . 111 G.II.n. L. 46 Ca. Fl. . 171 G.II.n. -C � till is .J. -u.rt 1. `.'u' •tii'� -..ba •� 4'0" J.t. WZT WELL MI.. Hy► r.a. L..d Mb. ho. W.I.• L... I 1.0" - IS9 G.II.n. net ..•11.O1e .Ie1..• ' u:-.; (;. ;_,�`..-,.'ELL ... vY, �: Gt C_li•. _ !um /ulllen Lln. S'S" DIAL WET WELL 3 t�TEf—�stj e Pv yr P eYGC.L 770-1 f� S3dr✓�G' H NG - L h!L = I PeZ CLHAfLj PA,*C il0z- _ 1112, �- /✓ .4PP2oP�ia;� A35u.K �a.�7 Nv l�F�� ,A.la A n�iN/rr;J.,,! AlmPlN 67 77*wC, dr- 2 w"'A� , 0 c TABLE C - WET WELL, DESIGN CHART i —/— / ---- --- I L/y V� J _ v a w Q\ p• � C \r�x K NOTES - v `P I\ PUMPIt+G TI1.+F IS 2'.V) ITES O / Basco I`tl tr' I :rL'2.)r FLOA'. — —7 --- -- 12 ID)C,PKt. IS aurnr.IUP.1rOP PRI rl PoEn P'r.•.P G:. •: ;E IS 5HC'•.'.N Ur SU'_.In I. I'I(-S NFLL DIAM. C-AP._ ilv (FEET) GALS/tI••CEPTH; .94- 'UU AUU OW GALLONS PER MINUTE )O �•� An Disch. Location ire y� T hre ` — B Rot Wet heck IC Wet l Dnd Aura. Pornts . 402 ve t PLAN VIEW ti4ACH. CHAPASER (Shown Less Cover) 574 r7 NOTES+ 1. mozinwm Capacity- 400 G.PW 2 ValuNM in Gallons Between L.L.OkOOrd LL'OFF' Shm" Equal pwnpinq Raft in G.PhI 3. 0 End of Discharge Line is Below Elevation of Discharge Lint at Pont Of Leovwq Wet Well , COnsutt Factory, trt t if Discharge Line a Less thou 200 Feet in Length 0 Chu* N we %" be Required - Consult Factory. & Pvmp tfokn - 20 H.P Wxi 2 & Provide 60, Slope in Wet Well - As Required. Op/, vs 4829 /4020 PUPS M eTDI" srrrtt+ i� C r 2r71 - tywET wELL MOL04TED PUMP L IFT*STA.eELcv. !-%s ..Tr ,,s_sD�96 G V&F-MR,01PNE �vo 2 . 79 �j7W77&Q W S S 6 2 • �9 r 7 3, ?� L. i Wet Well Mounted Pump Station Specifications Page 1 January, 1978 Main Plant Lenexa, Kansas 66215 SPECIFICATIONS WET WELL MOUNTED LIFT STATION WITH DUPLEX SEWAGE PUMPS GENERAL The contractor shall furnish and install one factory built, automatic pumping station as manufactured by Smith & Loveless Division, Ecodyne Corporation, Lenexa, Kansas. The station shall be complete with all needed equipment, factory -installed oq a welded steel base with fiberglass cover. The principal item$ of equipment shall include two vertical, close -coupled, motor driven, vacuum primed, non -clog sewage pumps; valves; internal piping; central control panel with circuit breakers; rT>otor starters and automatic pumping level controls; heater; ventilating blower; priming pumps and appurtenances; ani all internal wiring. OPERATING CONDITION$ Each pump shall Pe capable of delivering 1°0 GPM of raw unscreened sewage against a total dynamic head of . Zy feet. Thg maximum allowable speed shall be / 400 RPM. The rated horsepower of each pump motor shall be % //Z The maximum static suction lift shall be_Z '. All openings and passages shall be large enough to permit the passage of a sphere 3" in diameter and any trash or stringy material which will pass through a 4" house -collection system. The anticipated operating head range is from r feet minimum to x y feet maximum. CONSTRUCTION The station shall be constructed in one complete factory built assembly. It shall be sized to rest on the top of the wet well as detailed in the construction drawings. The supporting floor plate shall be minimum 3/8n thick steel with broken duwn edges or other reinforcing, as required, to prevent deflection and insure an absolutely rigid support. The pump station shall be enclosed by a hinged fiberglass cover. The cover shall have a suitable drip -lip around the edge and shall be provided with a hasp and staple connection to the floor plate to allow the pump chamber to be locked with a padlock. The cover shall have a latch mechanism to keep the cover open under load. Adjustable ventilating louvers shall be provided on each end of the fiberglass cover which are capable of being closed during cold weather operation. A steel manway cover located exterior to the fiberglass pump chamber shall be provided, complete with padlocking provisions. The manway shall be an integral part of the station floor plate and provide access to the wet well. A stanchion with lifting arm shall be provided to lift each pump. The lifting arm shall have a hook over the center of the motor to support a hoist (provided by others) to facilitate easy removal of the motors, impellers and pumps from the station. The pump volutes and discharge piping shall be mounted in relation to the floor plate as detailed in the construction drawings. WELDING All steel structural members shall be joined by electric arc welding with welds of adequate section for the joint involved. PROTECTION AGAINST CORROSION After welding, all inside and outside surfaces of the structure shall be blasted with steel grit to remove rust, mill scale, weld slag, etc. All weld spatter and surface roughness shall be removed by grinding. Immediately following the cleaning, a single heavy inert coating shall be factory -applied to all inside and outside surfaces prior to shipment. This coating shall be 11Versapox" epoxy resin especially formulated by Smith & Loveless for abrasion and corrosion resistance. The dry coating shall contain a minimum of 85% epoxy resin with the balance being pigments and thixotropic agents. SEWAGE PUMPS The pumps shall be (4rr)(6") vertical, non -clog sewage pumps of heavy cast iron construction, especially designed for the use of mechanical seals and vacuum priming. In order to minimize seal wear caused by lineal movement of the shaft, the shaft bearing nearest the pump impeller shall he locked III place su that urtd play is lunilud tv the Wlrllllr the bearing. To minimize seal wear resulting frorn shaft deflection caused by the radial thrust of the pump, the shaft from the top of the impeller to the lower bearing supporting the impeller shall have a minimum diameter of 1 7/8" for motor frame sizes 213 through 286; 2 1/8 for motor frame sizes 324 and 326; and 3° for frame 364 and larger. The dimension from the lowest bearing to the top of the impeller shall not exceed 611 . The bearing nearest the impeller shall be designed for the combined thrust and radial load. The upper bearing shall be free to move lineally with the thermal expansion of the shaft and shall carry only radial loads. The shaft shall be solid stainless steel through the pump and bottom bearing to eliminate corrosion within the pump or the mechanical seal. Removable shaft sleeves will not be acceptable if the shaft under the sleeve does not meet the specified minimum diameter. Wet Well Mounted Pump Station Specifications Pape 2 September, 1979 The pump impellers shall be of the enclosed type made of close -grained cast iron and shall be balanced. The impeller shall be keyed with a stainless steel key and secured to the motor shaft by a stainless steel cap screw equipped with a Nylock or other suitable self-locking device. The impeller shall not be screwed or pinned to the motor pump shaft and shall be readily removable without the use of special tools. To prevent the buildup of stringy materials, grit and other foreign particles around the pump shaft, all impellers less tharr full diameter shall be trimmed inside the impeller shroud. The shroud shall remain full diameter so that close minimum clearance from shroud to volute is maintained. Both the end of the shaft and the bore of the impeller shall be tapered to permit easy removal of the impeller from the shaft. The pump shall be so constructed so as to permit priming from the low pressure area behind the impeller. Priming from high pressure connections tending to cause solids to enter and clog the priming system, will not be acceptable. The priming bowl shall be transparent to enable the operator to monitor the priming level. The pump shall be arranged so that the rotating element can easily be removed from the volute without disconnecting the electrical wiring or disassembling the motor, impeller, backhead or seal, so that any foreign object may be removed from the pump or suction line. The pump shaft shall be sealed against leakage by a single mechanical seal constructed so as to be automatically drained and primed each time the pump is drained and primed. Water which lubricates the mechanical seal shall be automatically drained from around the seal if the pump loses prime, in order to allow both the pump and the seal to be drained, thereby preventing freezing and breakage of the seal during power outages in sub -freezing temperatures. The seal shall be of carbon and ceramic materials with the mating surfaces lapped to a flatness tolerance of one light band. The rotating feramic shall be held in mating position with the stationary carbon by a stainless steel spring. The pump volute shall be furnished with mounting lugs and be bolted to the st4tion floor plate, forming a gas -tight seal. MOTORS The pump motors shall be vertical, solid shaft, NEMA P base, squirrel -cage induction type, suitable for _:�- phase, cycle, volt electric current. They shall have Class F insulation, suitable for temperatures up to 1050 C. Insulation temperature shall, however, be maintained below 800 C. The motors shall have normal starting torque and low -starting current, as specified by NEMA Design B characteristics. They shall be open drip -proof design with forced air circulation by integral fan- Openings for ventilation shall be uniformly spaced around the mntor frame. Leads shall be terminated in a cast connection box and shall be clearly identified. The motors shall have 1.15 service factor. The service tac•ur shall be reserved for the owners protection. The motors shall not be overloaded beyond their nameplate rating, at the design condition, nor at any head in the operating range as specified under Operating Conditions. The motor -pump shaft shall be centered, in relation to th-, motor base, within .005". The shaft runout shall not exceed .003rr. The motor shaft shall equal or exceed the diameter specified under sewage pumps, at all points from immediately be'r.w the top bearing to the top of the impeller hub. A bearing cap shall be provided to hold the bottom motor bearing in a fixed position. Bearing housings shall be provided with fittings for lubrication as well as purging old lubricant. The motor shall be fitted with heavy lifting eyes, each capable of supporting the entire weight of the pump and motor CONTROLS The control equipment shall be mounted in a NEMA Type 1 steel enclosure with a removable access cover. The circuit breakers, starter reset buttons, and control switches shall be operable without removing the access cover, for deadfront operation. A grounding type convenience outlet shall be provided on the side of the cabinet for operation of 115 volt AC devices. Thermal magnetic air circuit breakers shal be provided for branch disconnect service and short circuit protection of all motor control and auxiliary circuits. Magnetic across -the -line starters with under -voltage release and overload coils for each phase shall be provided for each pump motor to give positive protection. Each single phase auxiliary motor shall be equipped with an over -current protection device in addition to the branch circuit breaker, or shall be impedance protected. All switches shall be labeled and a coded wiring di- agram shall be provided. To control the operation of the pumps with variations of sewage level � wet well, a minimum of three (3) mercury displacement . tches shall be F ided. A minimum of 30' of cord shall be provided with each switch to eliminate the hazards created by splicing. The cord shall have a corrosion resistant vinyl jacket and be multi -stranded in order to prevent fatigue. An automatic alternator with manual switch shall be provided to change the sequence of operation of the pumps every eight hours. The manual switch shall allow for either pump to be selected as base pump or for automatic alternation. Alternating the pumps at less than B hour intervals will nor be acceptable. C Dwet Well Mounted Pump Station Specifications Page 3 June, 1983 C�Smith&' 14040 W. Santa Fe Trail Dr. Loveless,lnc. Lenexa, Kansas 66215 Provisions shall also be made for the pumps to operate in parallel should the level in the wet well continue to rise above the starting level for the low level pump. VACUUM PRIMING SYSTEM A separate and independent priming system shall be furnished for each sewage pump, providing complete standby operation, Each priming system shall include a separate vacuum pump. Vacuum pumps shall have corrosion resistant internal components. They shall each be capable of priming the sewage pump and suction piping in not greater than 60 seconds, under rated static suction lift conditions of 20' at mean sea level. Each priming system shall be complete with vacuum pump, vacuum control solenoid valve, prime level sensing probe, and a float operated check valve installed in the system ahead of the vacuum pump to prevent liquid from entering the vacuum pump. The float -operated check valve shall have a transparent body for visual inspection of the liquid level and shall be automatically drained when the vacuum pump shuts off. The priming system shall automatically provide positive lubrication of the mechanical seal each time the sewage pump is primed. To prevent excessive stoppage due to grease accumulation, no passageway in the priming system through which sewage must pass shall be smaller than the equivalent of a 2 1/2" opening. ENVIRONMENTAL EQUIPMENT A ventilating blower shall be provided, capable of delivering 250 cfm at 0.1 static water pressure, in order to remove the heat generated by continuous motor operation. The ventilating blower shall be turned on and off automatically by a pre-set thermostat. The ventilating blower shall be rigidly mounted from the station floor. The discharge outlet shall have a thick resilient gasket which will match with a louvered opening in the fiberglass cover to seal the discharge to the cover when the cover is closed. An electric heater controlled by a pre-set thermostat shall be furnished. The heater shall be rigidly mounted in the station to prevent removal. SEWAGE PIPING The pump suction shall be drilled and tapped for a 125 pound American Standard flange for ready connection of the suction riser. The discharge line from each pump shall be fitted with a clapper -type check valve and eccentric plug valve. Size, loca- tion, and quantity of check valves and plug valves shall be as shown on the construction drawing. The check valve shall be Cof the spring -loaded type with external lever arm and an easily replaced resilient seat for added assurance against vacuum leaks. Check valves shall have stainless steel shaft with replace- able bronze shaft bushings and shall be sealed through the bearings with O-rings. An operating wrench shall be provided for the plug valves, Protrusions through the floor plate shall be gas -tight where necessary to effect sealing between the equipment chamber and the wet well. Bolted and sealed joints shall be provided at the volutes or suction pipes in order to prevent corrosive, noxious fumes from entering the station. The lift station manufacturer shall extend the suction and discharge connections below the floor plate at the factory, so that field connections can be made without disturbing the gas -tight seals. The manufacturer of the lift station shall provide a compression -type sleeve coupling for installation in the common discharge pipe. FACTORY TESTS All components of the pump station shall be given an operational test of all equipment at the factory to check for excessive vibration, for leaks in all piping or seals, for correct operation of the vacuum priming and control systems and all auxiliary equipment. Pumps shall take suction from a deep well, simulating actual service conditions. SPARE PARTS A complete replacement pump shaft seal assembly shall be furnished with each lift station. The spare seal shall be packed in a suitable container and shall include complete installation instructions. A spare volute and seal gasket shall be provided. INSTALLATION AND OPERATING INSTRUCTIONS Installation of the pump chamber shall be done in accordance with the written instructions provided by the manufacturer. Operation and maintenance manuals shall be fwnished which will include parts lists of components and complete service procedures and troubleshooting guide. GUARANTEE The Manufacturer of the lift station shall have a minimum of five years' experience in the design and manufacture of vacuum -priming type factory -built automatic purnping stations and shall guarantee the structure and all equipment to be free from defects in materials and workmanship for a period of up to one year from date of start-up, not to exceed 18 months from the date of shipment. Wet Well Mounted Pump Station specifications Page 4 January, 1978 Warranties and guarantees by the suppliers of various components in lieu of a single source responsibility by the Manufacturer will not be accepted. The Manufacturer shall be solely responsible for the guarantee of the station and all components. In the event a component fails to perform as specified or is proven defective in service during the guarantee period, the Manufacturer shall provide a replacement part without cost to the owner. He shall further provide, without cost, such labor as may be required to replace, repair or modify major components such as the pumps, pump motors and sewage piping manifold. It is not intended that the Manufacturer assume responsibility for contingent liabilities or consequential damages of any nature resulting from defects in design, material, workmanship or delays in delivery, replacement or otherwise. Ilt'k9Ni Smith & ' Loveless,inc. Ili I =- 11 � ��► C n o LL LJ wet well Mounted Pump Station Outline Drawings J�� Pdga 1 JJJI December, 1982 14040 W. Santa Fe Trail Dr. Lenexa, Kansas 66215 t j \ \ / Z F- / � F i io J od r i PC %PAP "' % �■� moll IT ' W�o FLANGE GASKET wN ■61t7goo- _ N QO s A 0 r A (o x � CDx Cn d m 7 m Cl �- N � N �v DWet Well Mounted 7t Wiring Diagram Page 1 1 M Dec., 1980 Smith & Loveless 14040 W. Santa Fe Trail Or. Lenexa, Kansas 66215 I I I I I I I [ I I IIS VAC .r NI a EKG I I IT IT I N[ATIN I !rG C? .. . L ,Na y----- ----------- ----------- -M.ISvIw GCS ICR �-w I{V r\ ! VG DI n/o/F / r Ir IER ICR L /S/LL y N AL ICR IGS A OL AL O IN 1 H 1 ' L-�IRir- AL ISS r-1` IOL I I FS/HL AL IER 0 EM A IEI [EN _ DI IY{ G 'I AL I I p U LEGEND AL PUMP ALTERNATOR R[ RECEPTACLE CONVENIENCE OUTLET C C►MCITOR RT RUNNING TIME MET "ICR CIRCUIT GR[AR[R SI GCLEC TOR SWITCH CR CONTROL RELAY H M4 NO 01 0100E 0 OFF EA aLICTA00[ RELAY A ALTO FN HOUSING VENT FAN IV SOLENOIO VALVE its PLOAT SNITCH T THERMOSTAT LL LOW LEVEL IT CLOSES ST' OPEN[ SE' ML MIGM LIVCL IT CLOSES SO• OPENS IS- N.MIGN W11 NGLL VP VACUUM PUMP M MOTOR STARTER VE VOL TAG[ SUPPRISSOR MG MANUAL SOITCN NV NIT MILL VENTILATOR OL OVERLOAD RELAY A ALARM LIGHT AND/OR MORN R REEESTOR -0' TERMINI" RLOCR — — NIRIMG EET[NNAL 0► ►A NIL DASHED ITEMS - OPTIONAL AND/OR FI[LO COMMEC T IOM{ ELECTRODE NO.I �;= o aiz �O :E �:3o -.foxa u m L9 �3a II 9!0/440 VOLT S PHASE f0 H[RTE WHIT LI L[ L{ I ICS IN ELECTROOE �T_ -_ 1 PUMP yOOR NO ! T ICG IN TAB MOTOR I I OPTIONAL TRANSFORMER I TCS i-Mb 4a� ----• uG VAC I 1 '-t--N .1_ /RIMART CONNECTIONS ISO VOLT[ NI TO MS G HI TO H41 ♦10 VOLT[ HI TO NS 2 PUMP STATIONS ELECTRICAL r SERVICE REQUIREMENTS WET WELL MOUNTED PUMP STATIONS 208 Volt, 3 Phase, 3 Wire Power with Separate 120 Volt, Single Phase Service For Auxiliaries WET WELL MOUNTED PUMP STATIONS INSTALLATION INSTRUCTIONS PAGE 3 Sept., 1984 MOTOR FUSIBLE ENTRANCE FUSE SIZE COPPER WIRE SIZE SERVICE ENTRANCE H.P. SWITCH SIZE (AMPS) AMPERES TYPE RHW CONDUIT SIZE 1-1/2 60 15 6 1-1/4 2 60 20 6 1 -1/4 3 60 25 6 1 -1/4 5 60 40 6 1 - 1 /4 7-1/2 60 60 6 1-1/4 10 100 75 4 1 -1/4 15 200 110 2 1 -1/2 20 200 160 1/0 2 26 20Q 175 ?/0 2 240 Volt, 3 Phase, 3 Wire Power with Separate 120 Volt, Single Phase Service For Auxiliaries MOTOR FUSIBLE ENTRANCE FUSE SIZE COPPER WIRE SIZE SERVICE ENTRANCE H.P. SWITCH SIZE (AMPS) AMPERES TYPE RHW CONDUIT SIZE 1. 1 /2 60 15 6 1-1/4 2 60 20 6 1 - 1 /4 3 60 25 6 1 - 1 /4 5 60 35 6 1 - 1 /4 7-1/2 60 50 6 1- 1 /4 10 100 70 4 1 -1/4 16 100 100 3 1 - 1 /2 20 200 125 1 1 -1/2 25 200 175 2/0 2 30 200 200 3/0 2 480 Volt, 3 Phase, 3 Wire Power with Separate 120 Volt, Single Phase Service For Auxiliaries MOTOR FUSIBLE ENTRANCE FUSE SIZE COPPER WIRE SIZE SERVICE ENTRANCE H.P. SWITCH SIZE AMPS AMPERES TYPE RHW CONDUIT SIZE 1-1/2 60 6 6 1- 1 /4 2 60 8 6 1-1/4 3 60 12 6 1 -1/4 6 60 20 6 1 - 1 /4 7-1/2 60 25 6 1-1/4 10 60 36 6 1 - 1 /4 16 60 60 6 1 -1/4 20 100 70 4 1 - 1 /4 25 100 80 4 1 - 1 /4 30 100 90 3 1 -1/2 '40 200 125 1 1 -1/2 *50 200 150 1/0 2 Recessed Pump Stations Only !11 OSTERGAARD • ROBINSON & ASSOC. INC. CONSULTING ENGINEERS 3805 108TH AVE. N.E., SUITE 106, BELLEVUE, WA98004 (206) 827.5855 MARYSVILLE: (206) 659.6329 PLAT OF SUNSET TRAILS LIFT STATION Job No. 86-101 Date: 4-21-86 APR. 2 1 1986 r �p •••.,: eF;ste,9' • 4,7 FSSIONAL ENG\� S1-11,1Se1r rR4 /4 5 q //8156 L //,--;r -5r,¢r1on/ DETEieit�l/NF f,PM .Q�QU/.�� .vd o.=' = 72 A of awe .4 @ /oa �A /PE.PSoN sr gSS,v�, E 4 Pc� FAcrvR vf' 3 CPiti/ (72) (4) l3) _ bo L7Pf'h �/h<^/•� 4 4d l V4' �i2O ✓/DC ?qo ram✓ CA?Ae&- � /'OD 4?W f'ZX-UJ Ci1�Gft FO,-,ce5 h.Iogi"j 512-E 4 " PIA L%�j<j�/r�� AZ,el✓ G�//u./A .G, r:-Ac-ToZ- ��5, ov / [ 4 /06p 41010" 7,48 4 '' VZ-A P/ _ 0, OS -7 is F �/?� hIEJ� hIEL[� (f'ri�j1Q l.:Q. STrJl2A6�Lr (7-2 f2' G<lw�i,-iieT )Oer' �i a 1r1rGU4P-'T 1-11V6 ?C $0TXV4 Or "Er NEL.L " /2, Z9 f% " «.do, pop 14 Upon", Im SEWAGE WET WEI.� DESIGN CHART TVIS CHART INDICATES ITLOAGE CAPACITILS Or VARIOUS DIAMETER CY1,1111 IICAL WET •ILLS WrTH SLOI W. OR FUNNELED GOTTOMS. ST0- AGE T'OLUM[ SETJLCN 4101H AND LOW LEVEL 11tTTINGSS1:0U11D NUMER- ICALLY St 9QUAL TO Tilt CAPACITY Or OKC IC1AG!. I UMP IN GALLON/ PER PODIUM iS.. Do..kh Nre.I: VOWCVLR, Thr. MINIMUM DU rEXLNTIAL RtTWEIN hlONI AND LOW LEVEL SETTINGS MUST hE I ►EMT FOR 1-ROPER OPERATION OF THE LIQUID LLVCL GONTROLLCX. TIME MINIMUM LOW WATER LEVEL MUST DI I rCET ABOVt BOTTOM Of THE PUMP SUCTION LOIN TO MA011 AIN PUMP PRIME. TO D[T[Rb"t THL MINIMUM DIFrXAENCL IN ELEVATION BETW LIN THE INFLUENT PU'L AND THE SOTTOM Or THE WET WELL ADD I TEST FOR MINIMUM LOW WATER LEVEL. PLUS I FELT FOR MINIMI/M DrfrEAXNTIAL R[T'rxim LOW AND 1.ION WATER LEVELS. IF THE STORAGE VOLUME RLTWLIM THE MINIMUM LOW AND NIGH WATER LLVIIJ FOR THE DIAM, LTtR WET WELL CHOSEN EQUALS OILEXCECDS THE NUMERICAL CAP^- CITY O► ONC IIIMP IN GALLONS PER MINUTE, THE MINIMUM DSFIRENCE IN ELEVATION BETWEEN THE INFLUENT PIPE AND THE BOTTOM Or THE WET WELL WILL SC M rLET. IF THE STORAGE VOLUME IS LLY THAN THE CAI ACITY Of ONE PUMP THE DtPTH OR DIAMETER Or THE WET WELL SHOULD sitQICAEAUD. 9011 f.XAMI LL, AS/UME TUL MAXIMUM DESIGN FLOW S 71 GALLON/ PER UMUPE�TN[ REASONS JIrTD IN LINETHL DCASOIN NOTES THE MINI- MUM RECOMMENDED "'JVAMIL I UMP CAPACITY S 1" G. L.M. • SOUSE I00 0. 1•. M. 1'UMIR FROM THr. DIAOSAM FOR THE 610" DIAMETER WET WELL THE 1 IT. FOOT OVER Tlif. MINIMUM LOW WATER LEVEL CONTAINS N GALLONS fOR A TOTAL LYEANLE STORAGE Of A" GALLn.sS CETWEEN MINIMUM LOW &NO MINIMUM INRIH WATER LEV AL 'r!;E M111MUM ILIMP CYCLE IS.. D—j. Nre.l WILL BC APS ROXIMATr.LY TI MINUTES. :If.NCE, THE MINIMUM WATER LEVILJ RATHER THAN TIIE MINIMUM STORALM; DETERMINES THE 0I411014. USE A 6 FOOT DIAMETEA WET WELL WITI: MINIMUM DIFFERENCE IN tLEVATION BETWEEN THE UNr LC':N(T LINE AND THE BOTTOM or THE AST WELL 011, 6.0i1. Each AMMILL..rI r.r . III auen. 1.0" 1.0" S.,a AEUll: I. -I For 9c a.wl 15.1 C.. To. • Iis ll.. ao Mu. HIIh W.t.1 L...1 Mr. NIMk W.I.r La..1 11, 11 C.. It . IS. 01 C.. r1. . I10 ail... p0^ 1'Y' T w ..Il... I'0" Ylw. JN— rul 1I. 11 Cu. h. I Is. M C. ►t. . Isywt 1'tr' Ylr DW.r.r Ml 110^ 9E C..II.n. Mu. L I, Wa..r L i - ML. I— *.I., L...I I'lr - litanen. wr TO" . 16, auo..l.hl. Hmal. .•�\ Lis .rul.bl. -.I. 0.41 Ch. Ye V _ X?Ja„1 kl�L I.c a Ln am ��u i/•�DC�.' P.m {h<Il.r Luc 4'0e Du. W.I Wall wjAy L�1Bf Lack ASMHa..I I.r . 176 all— 60. Is C.. To . 176 Callen. L0. 70 C., To . 175 Gall— 67. 90 C.To LSE all— 01. Ic C.. 11. . 14) Gall... :4 6.l6c..To. •:71a1i...,.y ` AJ- 4'0" J.+„ WET WILL Mu. High W.1.1 Lar.l !'0" Yu. DUI.1.r 41 MIw. I— W.I., L... I •: 09 `allonl rot .r.11..le I S.rlwn Lin• I'D" DIA. WIT WILL TE i s,•� P/.v' P L Y-C6 7-/ "&- fJ PG'i2 G�+A/.�j �A�C 2 ✓v�- _ !qZ 44 . �► S5 vwrc Pt� !� i.��l vrl = (x.) 4?n.1 loco -- 6 0 �c�i2.►�ncE ,4�Nojc �s 2- S w+�N• D� %/aFrly G ��:laC 4� �rviG4 i�5 T%4.4;' A �OaT a/C�Ct►Ti�l �- �� 1P�2oP�i,4:� A 35ur� �7 Nv ls��laW .A./n A itiJ �m vr- j'vltit�/v G� T1*WC- O I a TABLE C - WET WELL UI:S IGN CHART i •J �. P (�In•PItlG TlyF IS ?'.r,•1nE5 _ _-7 -- -- 1I(Y)(,PAI. IS f.gllR.Ry.I [OR 2 • , / SI: ItN� Pl u,fn5 PRIrlPnEn P.I•.'P r.:.[:'E IS SNC!trl V. ',Cl'-If) I OILS 4 HELL DIAM. CAPa„Iiv / (FEET) G4LVI` f••_CEPTN' cuu nuu ouu GALLONS PER MINUTE �n >D VW* FibKglast HOA and &*%wt L D1Q we Pape (W by S For 4' Suct on S&L to Here - For 6' Suction 4'z 6' Rm jcor - (By S9L WHsn Required) SSL Wet Welt L" Control Swill 4I- I' • 'u-4 Alt Disch. Location Solsrod Volvo T Shut Oft Volvo B Rot 3'-81* Vocuum Purnp Wet /-and Float Check Well Voles Sor and Au=. Conn Points Ems. 4o2 SO- 2 % Rot L 2-� ` 4' Dresser Coupling (Cl Pipe Fitting) by S9L) PLAN VIEW MXH.CHAMBER (Shorn Less Corer) All. Dad►. Location man" Sine rr4V. W = 514 r7o NOTES- '/ 1. moaim im Capacity- 400 G.PMI ? y? y 2 Volunr in Gallons Between L.L_'Ok' and L COFF. Shah Equal Pumping Ro* in G.M 3$5.7 3. if End of Discharge Line is Below Elevation of Discharge Line of Pores of Leaving Wst Well , Consult Factory. 4. if Discharge Line ie Ithou 200 FeN in Lengtft o C>,ec1t Valve Irb7r be Rs�: �i•ed - Ccrns++lt Factory. & Pump Motors - 20 H.P Wxirt e See Note 2 & Proydr 6(r SkWo in We# Well - As Required. 1tL. U► ► LL OFF 383 Z/ 12'1*L �4828/4820 PUMPSth QQ 7m,", z *s SmrE r2r1WET MILL ►rOLOO-m PL&v LIFT STA- - WADO L Cy 3-rs y.�_,e — 87D196 T, G (P-4 a TOE c.G 2.79 ' AhSapvg 2 ' SIW770,J w s s Tn 6 Z • 79 � Z,o 7 3, 7-If L. L. 1j Wet Well Mounted c. Pump Station Specifications �• Page 1 January, 1978 .. Main Plant Lenexa, Kansas 66215 SPECIFICATIONS WET WELL MOUNTED LIFT STATION WITH DUPLEX SEWAGE PUMPS GENERAL The contractor shall furnish and install one factory built, automatic pumping station as manufactured by Smith & Loveless Division, �codyne Corporation, Lenexa, Kansas. The station Shall be complete with all needed equipment, factory -installed oq a welded steel base with fiberglass cover. The principal items of equipment shall include two vertical, close -coupled, motor driven, vacuum primed, non -clog sewage pumps; valves; internal piping; central control panel with circuit breakers; raptor starters and automatic pumping level controls; heater; ventilating blower; priming pumps and appurtenances; anq all internal wiring. OPERATING COI DITION$ Each pump shall Oe capable of delivering /190 GPM of raw unscreened sewage against a total dynamic head of feet. Thp maximum allowable speed shall be /74so RPM. The rated horsepower of each pump motor shall be 7 BIZ The maxifrtumg static suction lift shall be 2,a All openings and passages shall be large enough to permit the passage of a sphere 3° in diameter and any trash or stringy material which will pass through a 411 house -collection system. The anticipated operating head range is from 3X-1-1 feet minimum to 3giy,7-/feet maximum. CONSTRUCTION The station shall be constructed in one complete factory -built assembly. It shall be sized to rest on the top of the wet well as detailed in the construction drawings. The supporting floor plate shall be minimum 3/8thick steel with broken down edges or other reinforcing, as required, to prevent deflection and Insure an absolutely rigid support. The pump station shall be enclosed by a hinged fiberglass cover. The cover shall have a suitable drip -lip around the edge and shall be provided with a hasp and staple connection to the floor plate to allow the pump chamber to be locked with a padlock. The cover shall have a latch mechanism to keep the cover open under load. Adjustable ventilating louvers shall be provided on each end of the fiberglass cover which are capable of being closed during cold weather operation. A steel manway cover located exterior to the fiberglass pump chamber shall be provided, complete with padlocking provisions. The manway shall be an integral part of the station floor plate and provide access to the wet well. A stanchion with lifting arm shall be provided to lift each pump. The lifting arm shall have a hook over the center of the motor to support a hoist (provided by others) to facilitate easy removal of the motors, impellers and pumps from the station. The pump volutes and discharge piping shall be mounted in relation to the floor plate as detailed in the construction drawings. WELDING All steel structural members shall be joined by electric arc welding with welds of adequate section for the joint involved. PROTECTION AGAINST CORROSION After welding, all inside and outside surfaces of the structure shall be blasted with steel grit to remove rust, mill scale, weld slag, etc. All weld spatter and surface roughness shall be removed by grinding. Immediately following the cleaning, a single heavy inert coating shall be factory -applied to all inside and outside surfaces prior to shipment. This coating shall be 11Versapox° epoxy resin especially formulated by Smith & Loveless for abrasion and corrosion resistance. The dry coating shall contain a minimum of 85% epoxy resin with the balance being pigments and thixotropic agents. SEWAGE PUMPS The pumps shall be (4")(6°) vertical, non -clog sewage pumps of heavy cast iron construction, especially designed for the use of mechanical seals and vacuum priming. In order to minimize seal wear caused by lineal movement of the shaft, the shaft bearing nearest the pump impeller shall be locked in place so that end play is linuted to thu cluji.rnLu wi1lnii the bearing. To minimize seal wear resulting from shaft deflection caused by the radial thrust of the pump, the shaft from the top of the impeller to the lower Lx:ai ing supNui tiny the impeller shall have a minimum diameter of 1 7/8" for motor frame sizes 213 through 286; 2 1/8 for motor frame sizes 324 and 326; and 3" for frame 364 and larger. The dimension from the lowest bearing to the top of the impeller shall not exceed 611 . The bearing nearest the impeller shall be designed for the combined thrust and radial load. The upper bearing shall be free to move lineally with the thermal expansion of the shaft and shall carry only radial loads. The shaft shall be solid stainless steel through the pump and bottom bearing to eliminate corrosion within the pump or the mechanical seal. Removable shaft sleeves will not be acceptable if the shaft under the sleeve does not meet the specified minimum diameter. Wet Well Mounted Pump Station Specifications Pepe 2 Saptamber, 1870 The pump impellers shall be of the enclosed type made of close -grained cast iron and shall be balanced. The impeller shall be keyed with a stainless steel key and secured to the motor shaft by a stainless steel cap screw equipped with a Nylock or other suitable self-locking device. The impeller shall not be screwed or pinned to the motor pump shaft and shall be readily removable without the use of special tools. To prevent the buildup of stringy materials, grit and other foreign particles around the pump shaft, all impellers less than full diameter shall be trimmed inside the impeller shroud. The shroud shall remain full diameter so that close minimum clearance from shroud to volute is maintained. Both the end of the shaft and the bore of the impeller shall be tapered to permit easy removal of the impeller from the shaft. The pump shall be so constructed so as to permit priming from the low pressure area behind the impeller. Priming from high pressure connections tending to cause solids to enter and clog the priming system, will not be acceptable. The priming bowl shall be transparent to enable the operator to monitor the priming level. The pump shall be arranged so that the rotating element can easily be removed from the volute without disconnecting the electrical wiring or disassembling the motor, impeller, backhead or seal, so that any foreign object may be removed from the pump or suction line. The pump shaft shall be sealed against leakage by a single mechanical seal constructed $o as to be automatically drained and primed each time the pump is drained and primed. Water which lubricates the mechanical seal shall be automatically drained from around the seal if the pump loses prime, in order to allow both the pump and the seal to be drained, thereby preventing freezing and breakage of the seal during power outages in sub -freezing temperatures. The seal shall be of carbon and ceramic materials with the mating surfaces lapped to a flatness tolerance of one light band. The rotating ceramic shall be held in mating position with the stationary carbon by a stainless steel spring. The pump volute shall be furnished with mounting lugs and be bolted to the st4tion floor plate, forming a gas -tight seal. MOTORS The pump motors shall be vertical, solid shaft, NEMA P base, squirrel -cage induction type, suitable for -;�_ phase, cycle, ozo y _>volt electric current. They shall have Class F insulation, suitable for temperatures up to 1050 C. Insulation temperature shall, however, be maintained below 800 C. The motors shall have normal starting torque and low -starting current, as specified by NEMA Design 8 characteristics. They shall be open drip -proof design with forced air circulation by integral fan. Openings for ventilation shall be uniformly spaced around the motor frame. Leads shall be terminated in a cast connection box and shall be clearly identified. The motors shall have 1.15 service factor. The service factor shall be reserved for the owners protection. The motors shall not be overloaded beyond their nameplate rating, at the deign condition, nor at any head in the operating range as specified under Operating Conditions. The motor -pump shaft shall be centered, in relation to tf._ motor base, within .005". The shaft runout shall not exceed .003rr. The motor shaft shall equal or exceed the diameter sp�crfied under sewage pumps, at all points from immediately b?',: w the top bearing to the top of the impeller hub. A bearing cap shall be provided to hold the bottcm motor bearing to a fixed position. Bearing housings shali be provided with fittings for lubrication as woll as purging old lubricant. The motor shall be fitted with heavy lifting eyes, each capable of supporting the entire weight of the pump and motor. CONTROLS The control equipment shall be mounted in a NEMA Type 1 steel enclosure with a removable access cover. The circuit breakers, starter reset buttons, and control Switches sh:;!I be operable without removing the access cover, for deadfront operation. A grounding type convenience outlet shall be provided on the side of the cabinet for operation of 115 volt AC devices. Thermal magnetic air circuit breakers shal be provided for branch disconnect service and short circuit protection of all motor control and auxiliary circuits. Magnetic across -the -line starters with under -voltage release and overload coils for each phase shall be provided for each pump motor to give positive protection. Each single phase auxiliary motor shall be equipped with an over -current protection device in addition to the branch circuit breaker, or shall be impedance protected. All switches shall be labeled and a coded wiring di- agram shall be provided. To control the operation of the pumps with variations of sewage level ? wet well, a minimum of three (3)-nercury displacement . tches shall be F ided. A minimum of 30' of cord shall be provided with each switch to eliminate the hazards created by splicing. The cord shall have a corrosion resistant vinyl jacket and be multi -stranded in order to prevent fatigue. An automatic alternator with manual switch shall be provided to change the sequence of operation of the pumps every eight hours. The manual switch shall allow for either pump to be selected as base pump or for automatic alternation Alternating the pumps at less than 8-hour intervals will riot be acceptable. C DWet well Mounted Pump Station Specifications Page 3 June, 1983 CM Sn-uth& ` 14040 W. Santa Fe Trail Dr. O Loveless,lnc. Lenexa, Kansas 66215 Provisions shall also be made for the pumps to operate in parallel should the level in the wet well continue to rise above the starting level for the low level pump. VACUUM PRIMING SYSTEM A separate and independent priming system shall be furnished for each sewage pump, providing complete standby operation. Each priming system shall include a separate vacuum pump. Vacuum pumps shall have corrosion resistant internal components. They shall each be capable of priming the sewage pump and suction piping in not greater than 60 seconds, under rated static suction lift conditions of 20' at mean sea Ievel. Each priming system shall be complete with vacuum pump, vacuum control solenoid valve, prime level sensing probe, and a float operated check valve installed in the system ahead of the vacuum pump to prevent liquid from entering the vacuum pump. The float -operated check valve shall have a transparent body for visual inspection of the liquid level and shall be automatically drained when the vacuum pump shuts off. The priming system shall automatically provide positive lubrication of the mechanical seal each time the sewage pump is primed. To prevent excessive stoppage due to grease accumulation, no passageway in the priming system through which sewage must pass shall be smaller than the equivalent of a 2 1/2" opening. ENVIRONMENTAL EQUIPMENT A ventilating blower shall be provided, capable of delivering 250 cfm at 0.1" static water pressure, in order to remove the heat generated by continuous motor operation. The ventilating blower shall be turned on and off automatically by a pre-set thermostat. The ventilating blower shall be rigidly mounted from the station floor. The discharge outlet shall have a thick resilient gasket which will match with a louvered opening in the fiberglass cover to seal the discharge to the cover when the cover is closed. An electric heater controlled by a pre-set thermostat shall be furnished. The heater shall be rigidly mounted in the station to prevent removal. SEWAGE PIPING The pump suction shall be drilled and tapped for a 125 pound American Standard flange for ready connection of the suction riser. The discharge line from each pump shall be fitted with a clapper -type check valve and eccentric plug valve. Size, loca- tion, and quantity of check valves and plug valves shall be as shown on the construction drawing. The check valve shall be I of the spring -loaded type with external lever arm and an easily \- replaced resilient seat for added assurance against vacuum leaks. Check valves shall have stainless steel shaft with replace- able bronze shaft bushings and shall be sealed through the bearings with O-rings. An operating wrench shall be provided for the plug valves. Protrusions through the floor plate shall be gas -tight where necessary to effect sealing between the equipment chamber and the wet well. Bolted and sealed joints shall be provided at the volutes or suction pipes in order to prevent corrosive, noxious fumes from entering the station. The lift station manufacturer shall extend the suction and discharge connections below the floor plate at the factory, so that field connections can be made without disturbing the gas -tight seals. The manufacturer of the lift station shall provide a compression -type sleeve coupling for installation in the common discharge pipe. FACTORY TESTS All components of the pump station shall be given an operational test of all equipment at the factory to check for excessive vibration, for leaks in all piping or seals, for correct operation of the vacuum priming and control systems and all auxiliary equipment. Pumps shall take suction from a deep well, simulating actual service conditions. SPARE PARTS A complete replacement pump shaft seal assembly shall be furnished with each lift station. The spare seal shall be packed in a suitable container and shall include complete installation instructions. A spare volute and seal gasket shall be provided. INSTALLATION AND OPERATING INSTRUCTIONS Installation of the pump chamber shall be done in accordance with the written instructions provided by the manufacturer. Operation and maintenance manuals shall be furnished which will include parts lists of components and complete service procedures and troubleshooting guide. GUARANTEE The Manufacturer of the lift station shall have a minimum of five years' experience in the design and manufacture of vacuum -priming type factory -built automatic pumping stations and shall guarantee the structure and all equipment to be free from defects in materials and workmanship for a period of up to one year from date of start-up, not to exceed 18 months from the date of shipment. Wet Wall Mounted Pump Station Specifications Pape 4 January, 1978 Warranties and guarantees by the suppliers of various components in lieu of a single -source responsibility by the Manufacturer will not be accepted. The Manufacturer shall be solely responsible for the guarantee of the station and all components. In the event a component fails to perform as specified or is proven defective in service during the guarantee period, the Manufacturer shall provide a replacement part without cost to the owner. He shall further provide, without cost, such labor as may be required to replace, repair or modify major components such as the pumps, pump motors and sewage piping manifold. It is not intended that the Manufacturer assume responsibility for contingent liabilities or consequential damages of any nature resulting from defects in design, material, workmanship or delays in delivery, replacement or otherwise. 0 (n (n V) In n O z AL�l F � -..� .•- mu a W ra - � I �� 51Z99 sesue)l `exaue-1 �0 Heii aA elueS A 0170K Z86L ',egwaaeQ L effed s6ulmeap euillno T uoilelS dwnd polunoW llom leM .3) �— — U--, i 1 ■1 I I �J� •0uj`9sej8no-j C� I PLUS -T �r r- I C IDCJRE FOR W LOCATE 8-a 4-REDUCER IBY SBLI DCE IF TB15 PARTS LIST MOTOR p4 16LSK:F 1 1 1 '20 I ILIA 1 ♦" FLANGE A38 60A108 I BASE SEAL I IL47D I OUAD RING 11 ZL20A 1 6 a 4' CON( IA36 01. ZL20B I 8'. CON( IA32 NOTES, I. NEOPRENE SLINGER RING AND STAINLESS STEEL IMPELLER KEY INCLUDED WITH MOTOR I A39 2. * FURNISHED-6' SUCTIONS ONLY. 300 FURNISHED-B' SUCTIONS ONLY. IA30 )A20 1Al2 IPELLER EE FACTORY 67DIi2 RLDIEARI is B2D PUMP ASSEMBLY Wet Well Mounted Wiring Diagram Page 1 Dec., 1980 Smith & Loveless 14040 W. Santa Fe Trail Dr. Lenexa, Kansas 66215 Uj 0 z1'-z < 115 VAC 0 Us � 5;7 1.4 Go rW IT at Ic qIr%o 4 i5v Ica o z wS Di j I T IT "n FS/Off f IN IFIR -F1/LL iEA lot AL 10L ELECTRODE AL 0 IN no. I &L 235 42 ir,- 20L FS/141- AL 2EN 0 2M TA ---A er Un Di 11101440 VOLT I INAIII SO HINTS SUPPLY C 11 Ll Ll IN$ 1 AL ELECTRODE Pump MOTOR ro/ww L No 2 NO I 'A' ace am pump MOTOR 140 1 AL PUMP ALYERNATON CONVENIENCE OUTLET C CAP ACIYQM :19 r :ICEPTACLI U '*"IN 4 TINE METER CS CIRCUIT engagelit as SELECTOR SWITCH OPTIO A L CA CONTROL RELAY 0 HAND TRANSFORMER E01009 0 FF r A N ILIC 0001 RELAY A AUTO TCA I fN mousy NO"""FAR' SOLENOID VALVE '." am. 'C N T THIN 60 5 TAT LL LOW LEVEL IT CLOSES IT' OP IN 116 VAC ML M LE YSL IT CLO898 60- OPEN: .::." "W ILL VP VACUUM PUMP IN TOR &X.: Yt YDLTAU SUPPRESSOR a MANUAL SWITCH ll V WET a'. QVIALOAD MILAV :ILLMVENTILATOR A ALAN LIS 7 AND/OR NORM e REu(TVR PRIMARY CONNECTIONS 130 VOLTS MI TO It 3 a Of TO k4 -110- 11"IMU &LOCX WIRING EXTERNAL OF PANEL 410 MOLT{ Me To "S CAW" ITEMS OPTIONAL AND/00 FIELD CONNECTIONS 2 PUMP STATIONS WET WELL MOUNTED PUMP STATIONS INSTALLATION INSTRUCTIONS PAGE 3 L ELECTRICAL SERVICE REQUIREMENTS WET WELL MOUNTED PUMP STATIONS 208 Volt, 3 Phase, 3 Wire Power with Separate 120 Volt, Single Phase Service For Auxiliaries Sept., 1984 MOTOR FUSIBLE ENTRANCE FUSE SIZE COPPER WIRE SIZE SERVICE ENTRANCE H.P. SWITCH SIZE (AMPS) AMPERES TYPE RHW CONDUIT SIZE 1.1/2 60 15 6 1-1/4 2 60 20 6 1 - 1 /4 3 60 26 6 1 - 1 /4 6 60 40 6 1 - 1 /4 7-1/2 60 60 6 1 - 1 /4 10 100 75 4 1 - 1 /4 15 200 110 2 1 - 1 /2 20 200 160 1/0 2 25 200 176 2/0 2 240 Volt, 3 Phase, 3 Wire Power with Separate 120 Volt, Single Phase Service For Auxiliaries MOTOR FUSIBLE ENTRANCE FUSE SIZE COPPER WIRE SIZE SERVICE ENTRANCE H.P. SWITCH SIZE (AMPS) AMPERES TYPE RHW CONDUIT SIZE 1.1/2 60 15 6 1-1/4 2 60 20 6 1 - 1 /4 3 60 25 6 1 - 1 /4 5 60 35 6 1 - 1 /4 7-1/2 60 50 6 1- 1 /4 10 100 70 4 1 - 1 /4 15 100 100 3 1 -1/2 20 200 125 1 1 - 112 26 200 175 2/0 2 30 200 200 3/0 2 480 Volt, 3 Phase, 3 Wire Power with Separate 120 Volt, Single Phase Service For Auxiliaries MOTOR FUSIBLE ENTRANCE FUSE SIZE COPPER WIRE SIZE SERVICE ENTRANCE H.P. SWITCH SIZE AAMPS AMPERES TYPE RHW CONDUIT SIZE 1.1/2 60 6 8 1.1/4 2 60 8 6 1-1/4 3 60 12 6 1-1/4 6 60 20 6 1 - 1 /4 7-1/2 60 25 6 1- 1 /4 10 60 36 6 1 - 1 /4 15 60 50 6 1 - 1 /4 20 100 70 4 1 - 1 /4 25 100 80 4 1 - 1 /4 30 100 90 3 1 -1/2 *40 200 125 1 1 - 1 /2 050 200 160 1/0 2 'Recessed Pump Stations Only OSTERGAARD • ROBINSON & ASSOC. INC. CONSULTING ENGINEERS 3805 108TH AVE. N.E., SUITE 106, BELLEVUE, WA98004 (206) 827-YAf'&,jT9g;�- MARYSVILLE:(206) 659.6329 HYDRAULIC CALCULATIONS SUNSET TRAILS •••........ 4/30/86 •••�,�� WAsy ,06 �� 86-101 -� JUN. 4 1986 6•• �pPeistecea.•• 4� 7-W ScJlmJ�T / vP /S T i ✓/T E`t /,clip %l,Jo etc HEST c3�.7/.ti/ /� Ty.�,� ✓t.:�'5�;� rj r f-� �;zo�1v t �;; _ ,��..J,�G,,� COU+��.r.!' ;,� ;+- ;' t c .w ,�,�._',.9� ,.ram %-� ice-► /vuL.-;�-/ � V �SU!/TH .57a/�v�-r �✓r472 i cruj lo.�J N/LC. 8E P1�0�/il�c�� %1 QAJ /J1f+ f' Gr1�-�JG �TU,��Ir,�i4i� rL 04-7-a 7 In/t LC. T-f � t�(L�ti// iti>� /N i�N Gr�Er! 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Ix-T�tl/�D� io 72- % -3.qo -7� cp / �L l (0,71Z) d. bZTT ii Es' 304-,c,)4 { D,f7EZ44 l,yE ORIFICE D i 4 (:5) M UL T/RZ- AQ&.-A? = /2.7 t sal 7 -04G ' � / /A%S✓IM �J Ot"/Jl:�. / ��L" VL � Oft C/�TgLi...�v ) y T Cl Z 4/5.70 .z r I 4144 / d14.¢o - D . , •yl g 3 R= o.dz4;,,,4'�= 2 g —01 G2 6 4.4�►•?) t4: �29q • 3 „ b� 2 6v� 0.33 Gf�-s az A ;o L Z i h�v' Fiz;,o tj ll', -.# _ q..� a 1QQn 1_.26 III-73 .574WSfr 77-i'4/L5 / 5r $ASt� s�2� 6,9 / ey�y'5� � a.�� ,ye- �z`��,z YAa.0S 6-0 O, 2 i ,a c. � iQi 5r ,�✓Gf SE ZS a• S % 9 = , OY6 vG-v =o.�`a <-( ��C- -7,i5; f 0/3a 1/2,s�ey, (1094 4 = 54., </3Z,5-e /3 z, 584• f ZS ✓T = (?¢2c;;� S3 i)(i7• /9)r30 j = 20 go 14,r-rr3 4 0 0 ;=- /6 ?1 0 6 1�5 s 34 20 �/ 69.0 6 =fi86 - 2S9S.SZ5 -- !(0�/,06 ✓T = �25 is . 5�3� �,�. l9� �o,s-� .- 22, 3 9. 9X Zi t %)-14 0 Z�) _ 07'67b� 1 4/1.S = 01169 - 0/117be iq ce'o = O/VDO sF / = rir� s � •i � (� •-z�) (o� 'off �o •o) = C7 r••'�!.j-+�,�' lid r Q = d• 3 3 ham, - � • �� hD 1 Q 4 $ e-F"� (�v 2 ('o, 33) — O.9!5- = o . -z-/ v 1j9Z - /.70 L h� = 5, / O ' r QD I Gk,�, = 3. 90 , 3 J r- .5(Ji�15ET 7-42A ic-5 " -'gyp = Q72e- v.&L7 ( Z C? 4 �o. 74) ' �Z 0, c-2-77 ((Z. (3Z. Z� (4,IS 3) J z Ji �ASr� ^' E�'►'iE-iLC7C.,vC 5 rC LWA`f 3� off' 3;1 'S L � C4/= 3.0-�-, C� L /-Z. Inon 1.26 III-73 aOI,/NSTXtAM A�/AL yS�S C4,57- J/N !J' /Sc<�A.?CjF t%��[Y✓t' 7t, D,c%NTicun/ F;:�,c,'�c�Tj i;5 ifJi c� � F�6ela • 1,,/ A UlS�E.PSGT� i3y L/�'yv j� C,�4uJ C�✓c�2 �%� ��: ��U �5��-:1' f�=�,.,+, TRi$v�,� y jv ivlAy c --4/ !Ai AT�.rl if�GO wN�,et��,• 1 a� 7x/E S/T� • 711c aNC ,�./f� GVL✓�72.7'� <11�i�4=� �/E �'t�.�u.� ST�rIrN . �aC �+'JA./o2iT7' Ur" %�� Tj,�J6✓-� .�J,G��GGTING� !-NE�G= Cct�.✓1�75 L/c5 h/��T GF /ITN it1✓C 5� R�� Nov �� of �,c �'E�TC� ��SA�✓��N �, 7i /Puv -We- of wN/4� ,�5,5 /rl Jd47257 PaO7 !%"CZp r Q o / = /J T .�'•3�X� @ 4, b' % ¢ /ice ' C•� /, G 5 yo � � � 7 �.�.,� G /, v w�) 2• r6 �) d. So CvL✓cns' A — 24 -, 3� 24 Gwi P 3 r 5,000 16'- 7' x 10'-1' 4,000 { 3 15'-4'x 9'-3' 3,000 EXAMPLE -- 4 �2) 4 .3)- al. o Size 36" x 22" 12'-10'x 8'-4' 2,000 0. 20 cr% 3 4 �" J Hw' Hw 3 a w ac o W r N =� tl'-5'x 7'-3' o (fall) 3 J W (l) Llo 2.0 1,000 o a • 2 (2) 1.15 2. 1 800 2 U j e ` 9'-6' x 6'-5' (3) 1.22 2.2 = u W i 600 "D in fait 2 2 m D 500 un 8'-2' x 5'-9' 400 1.5 300 1.5 7'-0' x 5'- 1' 200 — 0 6'- 1' x 4'- 7' — — — a a w a 72' x 44' N w 100 / 1.0 1.0 a LL v BO 3 = `" 9 1.0 6 5' x 4 0' �e j// 9 0 60+P/ w N w 58' x 36' V w 50 / / — Cr .9_ 8 40 V w .8 K a / O z a 50' x 3 I' U u1a. 20 7 7 w HW ENTRANCE p SCALE Z 7 N 43'x 274 TYPE _ (1) Heodroll ~ a .6 10 (2) Mitered to conform w O u 56' x 22' 8 to slope 6 0 (3) Projecting w_ Q 6 Q z a 5 � ai 29' x 18' 4 To use %cola (2) or (3) project uQ.1 = .5 5 '5 3 horizontally to scale (1), Ihen use straight inclined line through 25' x 16' D and 0 scale•, or reverse as 2 illustrated. 22' x 13' 1.0 1. B I 4 4 .4 D 18' x 11' 6 35 .35 . 35 HEADWATER DEPTH FOR C. M. PIPE -ARCH CULVERTS BUREAU OF PUBLIC ROADS JAN 1963 WITH INLET CONTROL CHART 5 29 t I80 -- 10,000 8,000 EXAMPLE56 �68 t2� 6,000 0. 36 inchts (3.0 test) 6. 5,000 0.66 cts (3) 144 4,000 5. 6. I Hwy Hw 132 3.000 D 0640 S. 6. 5.4 120 W 2,000 12) 2.1 6.3 4. S' a (3) 2.2 6.6 108 a - 3. 4. J 'D in fell ' 96 of1,000 3. _ 3' 800 84 600 2, 500 400 / — . -- 2:---- - 2. N w 72 300 o - ? u 200 ' �� z 60 / 54 0 � UJI ►- w - 100 / a, 48 - - _J a 80 `_,_ V x- U 60 Z 1.0 1.0 42 N / 50 \ t- 'UJ o / 40 1.0 UJ �6 30 ENTRANCE <`�L�J 0 SCALE TYPE a ,9 w Q 33 0 (1) Heodrall o 30 (2) Mitered to conform Qw to slope x _ _g _ u 0 27 10 (3) Projecting 7 .7 a 0 6 a 24 .7 6 5 To Lies stale (2) or (3) project 21 4 horizontally to seals (i), then .6 6 use straight inclined line through 3 D and 0 scales, or reverse as 6 18 illustrated. r 2 15 .5 .5 12 HEADWATER DEPTH FOR C. M. PIPE CULVERTS WITH INLET CONTROL BUREAU OF PUBLIC ROA0S JAN 1963 CHART 4 28 J 375 TREES ` x S. E. 0 \ H ST,�F,�1 �420 \ X TREES \ IXra22 — II L— D II t I \ 1 1 66 II 1 I I � II v 466 \ I \ ED i 1424 I � Ix�--_------------- — 1 77 I-ALI/ 4 I I , X421 Ix \ t I-r ❑ � TR At t 18 I ! x x x \ _ N 4 2 6 I _ TREES \ A6 r Li I I 1 42s s � TREEStj • N 191,166.42 E 1,676,638.85 g W 0 l' TREES >%-tJ \ I TREES II I o i N • � , I � � I a I I `\ x I II I 09 \ ZR EE S I I 1 o� 1 �s� I I N I 60. O 1 I + E 11,5 x 4011 1 I \ 3T5 \ N+ 1 � TREE \\ \ I TREES Q 440 IIG - \ \ CD IL \ \ \�k \ \ 375 4g0 ! k, TREES \ - -- I 1 TREES I Ilx \ -� \ I 465 El I� x OSTERGAARD ROBINSON 00 & ASSOC. INC. CONSULTING ENGINEERS 3805 108TH AVE. N.E., SUITE 106, BELLEVUE, WA 98004 (206) 827.5855 MARYSVILLE: (206) 659.6329 HYDRAULIC CALCULATIONS SUNSET TRAILS 4/30/86 86-101 It .SuWS�i T"�tc_ T,�/c Sv��T ��EKTr /S T ✓ir�� v IM0 7WQ 0 451,115 . ,�� i,✓�iG�, = COv.�� .%v ,+�1 t G .� r � � i ..,� �=i.�.c.�i - ,,lva��r,� - f� �UU�-� • STo%�� wSa71� lv� N/l�C, �E P�'Or/i.�G-7J t.�J ,[�' Gc�,� cam= fr ✓�ltl�/— s�zc-� �� ,� � j'r�arz .5/�+�C�,-: L�� ' G✓! T1-+ .'a /� YR . �E_ z.L��SC � i� , jjlE EAST' �� r,v Z.�e.4 tNs Naerti��=Y-y To �.�lo l.L � � r i��/i� /,v AM oPFi.1 ,�o�.►� �lZ�v '� ?f•'u ✓�1�� .� 7a.a C ti A 2� y/- :7iZ�2r�c� �..�✓G-y�.i :�/. f> �'i�' IL 5, 000 16'- T' x 10'- I' 4,000 t 15'-4'x 9'-3' 3,000 EXAMPLE -- 4 �2) U 4 Sitr 36's 22" 12'-10'x 8`4' 2,000 0r 20cfs 3 4 Zy ws n W Hw* Hw D (tut) 3 q a o� 11'-5'x 7'-3' 3 w4 =� 1000 (I) 1.10 2.0 u � 9'-6 x 6'-5 (3j 1.22 2.2 . z u 600 eD in tut 2 2 m � 500 v~i t s 8'-2' x 5'-9' 400 1.5 300 7'-0' x S'- 1' 1 5 200 v 6'-1- x 4-7' — --. — Q 4 72' x 44' LA_ 1.0 1.0 a 65' x 40' z so / �e j 3 = 9 1.0 .9 v 60*'i W w rn 58' x 36 w 50 N cr 9— Cr 40 �/ l 8 .8 x Q � O to z a 50'131' uv) /�� ir .8 20 � 7 7 / W HW SCALE ENTRANCE z 7— N 43'x 27' /� (I) H droll w F- d a- .6 I I (2) Mitered to contornt W 0 6 U 36' x 22' 8 to slope Ix .6 Or (3) Projecting 6 t— .4 z a S aa u~i 29' x 18' 4 To use kale (2) or (3) project w = 5 .5 .5 3 horizontally to scale (1), then use straight inclined line through 25' x 16' 0 and 0 stales, or reverse as 2 illustrated. 22' x 13' 1.0 B I .4 .4 .8 D i 18' x I I' .6 .35 •35 .5 .35 HEADWATER DEPTH FOR C. M. PIPE -ARCH CULVERTS BUREAU OF PUBLIC ROADS JAN 1963 WITH INLET CONTROL CHART 5 29 180 10,000 168 8,000 EXAMPLE (2) 156 6,000 D- 36 inches (3.0 feet) 6. 5,000 0.66cfs 144 4,000 5. 6. Hwe Hw 132 3,000 0 (feel) 5 6. 5. 120 w 2000 , (2) 2.1 6.3 4. a (3) 2.2 6.6 108 J a — 3• 4. -J eD in feet 96 1,000 3 u Boo 3. 84 600 2. ! 500 400 %�2:--- 2. 72w300 P.5 t. z U) z 1 I z 200 0 54 0 I.0 f w - 100 w 48 or 80 ! > J a/ _Z ! u 0 to 60 1.0 1.0 'I w 42 50 )a 10 0 / 40 ww . U �6 30 ENTRANCE Iz SCALE TYPE p � .9 Q 33 0 (1) Heodwoll Q 0 .8 .8 1I 0 30 (2) Mitered to conform Q w i to elope = .8 � u o 27 10 (3) Projecting •7 a II a 8 .7 0 z 24 .7 a 6 a 5 To use scale (2) or (3) project i 21 4 horizontally to scale (I), then '6 use straight inclined line through .6 3 D and 0 scales, or reverse of ,6 IB Illustrated. 2 15 •5 .5 1.0 12 HEADWATER DEPTH FOR C. M. PIPE CULVERTS J WITH INLET CONTROL l BUREAU OF PUBLIC ROA09 JAN 1963 CHART 4 28 /Z .i al*vsl-1 i9Rn !.2F III-73 Iv�+✓� �rr� ��J 1.26 ':1 III-73 ZZ r9g� S'�3bZ= c7f rn�� 0/ yj bZ� oir�� ozf� z j =pit ---------- •2 _ �. S J � �� ,O _ _ _. � / _ �� ` _ C� �1 S=L��, �7 5�1.., � �� t�►N079 bG'' o / 'O rv6;O R 15V�7 /off - 9S G✓,557- 64.5o,,J /0A- ,OWeA - / 2, 7 AG =; o - O, 4 4 G1A 'el, $'Z 144„1 o. 5(. cr= s 3 YpAt,150 AR444 = d, 5-2 .46 (�e�iZ Vha,1)5 6075 / - 5 ) O, ZS p, 5-� - 0.06 s o, 5-0 176 z �- _ 121, 4 Q h A;lo <d, o�'Z (12r, 2/ 6 (/f 1 757,, (0, 5Z) S. /.�i) T = - 7-5 -t S•5, so o _ Vs = 3 4 ZOT - �9.9 � 9 r Qs T •t Z'S 74 215 1 f4 7 7 v � u. ,7 .su J sir- 7-"I�-6 /a y4e 1 ,- air, ll. 4 40 di(vL7 r 2 -74 o, GL%J ((z) (32- Z) �4,3) moo � .� �?,. '_ / Z . 8 '7 G�6 ,5rCPAO GWiFiQ D. 4 ,SIJNSEr 7"- 1LS 7. 7 7 A Co oyFS/iQ5, oe lx-TiLI�D� 771 r'2 6--7 ) /lf ■■■■■■■■■■■■■■■■■■■■■■■■■■■�■■■■■1■■■■■■�■■■■■■■■■■■■■■■■■ H z w U x w w z � H 04 w N �T7 0 L^ y a w x� 0 U R.' W H d 3 50 40,. 30 20 10 9 B 7 5 3 1 Z 3 4 .5 1 2 3 4 5 10 20` VELOCITY IN FEET PER SECOND AVERAGE VELOCITIES FOR ESTIMATING TRAVEL TIME FOR OVERLAND FLOW SOIL CONSERVATION SERVICE TECHNICAL RELEASE NO.55 JANUARY 1975 W, pow�✓sr,��.aM ,4�rA �s�.5 -�FA.57- 6,*,si4J p/,SC<�A,2C E 77Je f�,cicn/%ioN �� c, �rl /.5 iNi v � tJ,Q:G lam//4!C< 5' ice/ A �•45TE,2GY ai,�Z��1V.J . �'GUhlS �/'E �t/��-GTE.t� 7c D/SPE. D Ff/ f/EA, v y �cs�t tvc7 Cu ✓t�2 si•�a 771C tWe-190 r5ycwT AZ-,k.+) .4APRo)e. 6� Fr L" s- 7, wig �l vwi�.Li �m h/N,tCN Rv.JS NOQT1J&V!2 . M 4 y CZ�teK dq i AT�.�R ige0 ,L�w QF ic.-f Ra`u 1-7/E Tic aNLY 4E2/GTica�S �P,��J r✓ERE T�� PRIVAT� Or %�L" rjfJS✓--� •�1FrEGTJNL� !%/E5C Cv�.✓G.�275 L/t:5 h/�ir Uf= /4b TN r'�✓� 5� ,q,�� X�TN of 7�ic. 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