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217866 � -r ^ ►w�(� \�LERK �� '`� M fi tiJ�� ; CITY C�'.F ST. PAUL FILENCI� NO. � �. OFFICE OF THE CITY CLERK COUNCIL RESOLUTION—GENERAL FORM � osen � �. .. DATF � � � i In the matter of the Department of Public Works report ' entitled "Metropolitan Saint Paul Sanitary Sewerage Report, � Engineering," dated May, 196�+, and a copy of which is attached� r RESOLVED, That said report is hereby accepted and approved by the City Council of Saint Paul. + i , r � i , RESOLDTIONS � Council Flle No. 217866—By Milton Rosen— In the matter of the Department of Public Works report,entitled "Metro- politan Saint Paul Sanitary Sewerage i Report, Engineering�" dated May, 1964, and a copy of which is attached, i Resolved, That said report is hereby � accepted and approved by the City ' Council oP Saint Paul. k ` APPPo ed MayeB�ll May 8, 1984: � (May 16, 1964) , � i — i . ! � . i ; . 1 � � � -M 1` ��964 COUNCILMEN Adopted by the�Council 19— Yeas Nays • � j Da�g�h � MAY� 1 I �� ; ��.• � pp oved ig! Loss ,� � n Favor � �Vl��iis�SiT'""" ' °� � � � ' .�-et�erson-.e., Mayor Rosen gainst Mr. President, Vavoulis . ions s-sz • ' � � , . • . , ,� --�...�� --� - � �'� ,r._�' - . , , . ,. .�. o� ,,: � • `�::�� _ � GEORGE M SHEPARD �C I T Y�O,1,,,'R S A:I N 1• •T�T � � �3 tl M 0�yE � ��NE V.~�4VERY STREET AND HIGHWAY �� r � �I..,; .J �C y � ■ EF EN61NffER ENGINEERING COORDINATOR '�jIIGII.}, �,ti1� j S 4+ � w�? R �""� �"�►."��v-....t''� ,y1=- �`_ ;II��T,�� of tMinnesota i^9� i� y=6 ��C I�►I'�TESTE ■ � �` � •';I:? �y� S .�� 0 q ',$ PERINTENDaT�O SANITATION `� � � � DEPART f;,T-�OF'�=UBNC WORKS�=`�?-^a � �_ .I l�..._ _ I�� iii iiiiii:.a ' � -t °—— '�—C A.ii / � ��Tlll�� ,4� �e�"' , ` _23_4_Ci+ `L,__�1.8°'cz"C` H�ou�.�se��-■�5r5�1�0�' �yyi,T�M� � , 4 �. -�� YM'� •�/ !r� " - � I^ � � � � �T'� � , I q� Q ¢ � - �,��'i�- +� � - �I-LTO:N ROrS�F�N= `� l.�� " � �� s - ±-� "�j >ommission�'�� t�l Ll �"1 -y �r�. �' °�Y� - , ,� � ",,,,��i�"�t"""" � ��;AZbI P. SEHRENS.r r r r-o ea �3" �1 •"'°�t �— -- � . �e p�` - Dsputy�Commiuion�ts�� t � : ` p I ! _ -- � - ; I � � I � llil I .� - - - -� .. .r:��--f-- - - _ �.zz i� _ — i `� �- - --- - May 8, 1964 Mayor George J. Vavoulis and Members of the City Council City of Saint Paul Re: METROPOLI TAN S�LJERAGf S7( UD t�S Relationship of the Eng'ineering Report to the overall s�tudies Gentlemen: This �ngineering Report is a comprehensive plan for sewage col ection works, mostly outside of Saint Paul , for an area likely to require c ntral sewer service by the year 2000. In addition to the plan, the report contains cost estimates and a proposed schedule of construction. The constru tion project limits are so laid out as to facilitate cost assignments to arious districts and units of government. The report was prepared in close coordination and with the .sa e criteria as those planning for other areas. Also, in order to make the report as real- istic as possible, an elaborate lfaison and information system was �stablished with the engineers and policy making representattves of the 33 comm}�nities within the study area. Unlike Minneapolis, we, with approval of Cor4missioner Rosen and the Council Advisory Committee, elected to do this study �►ith our own staff. We felt that only by so doing could we achteve the detailed famil- iarity with the pro,ject and fihe control that is desirable. We hav the staff talent available as I think the report bears out and we were able o release their time by temporarily augmenting our staff with consultant wor on more conventional sewer pro,jects. • i I believe we have the best possible engineering report consistent with the time allowed and the detail into which the investigatfon went. We, there- fore, recommend your interim approval of the report so that it can serve as the necessary factual basis for the really controversial and diffi ult portion of the study which the legislature has required, namely the financ�e and rate study. For this the City has retained a consultant and much preliiminary work has been done by him, by the Saint Paul Council Advisory Committe and by the suburban groups with whom a cordial liaison has been established. � ��-= - 1 - - • � 1 - : , -' Page 2 - . ,�y� . It should be emphasized that the finance -and. rate study, which sho ld - . now get into full swing, contatns the�_real policy questions that should I�e focused on. The Engine�ering Report simply p,rovides realistic working assump- tions as to numerical values�;fior the finance study. As the finance stud� develops, there may be a need to revise the assumed project limits, or t�ie staging in order to facilitate assignment of finance responsibil �ty. Ot er minor changes may be necessary. It is important that the studies by all con- cerned over the next few months not be concentrated excessively on minor details of the physical plan. To do so, i feel will miss the whole important point of these area-wlde cooperative study. The physical plan is subje �t to ready adjustment in its details both as to finance analysis and as cha�ging conditions warrant. The really difficult questions that should be conc n- trated on include the following illustrative examples: ' l. Assumptions as to the organiz�tional nature of the entity or entities to implement the trunk sewer plan: 2. The pattern of ownership, operation and maintenance of the plan. 3• The pattern of financing methods and reimbursement to the financing entity, whether it be political organization or _. revolving fund, for cons�ruction of the major '�Jointly used" interceptors within and through Saint Paul, treatment plant. , improvements, treatment plant operation and maintenance, and � operation and maintenance of the trunk system itself. 4. Apportionment of costs between units of government. 5. Allocation of costs between users and land area. ' 6. Distribution of charges between millage rates on property a d service charges. 7. Financing relationship of Saint Paul and the Saint Paul ar a to the 14.4 million proposed Saint Paul area collection sy�tem, the 29 million dollar proposed Minneapolis collection syst m, the 45 million dollar proposed southwest collection system� and the 40 million dollar plant expansfon. This is of ver� great concern. Saint Paul has relationships to consider npt only wifih the communities likely to be served through it i a 14 million dollar program, but also a position in the enti e 106 million dollar overall Twin City program. This deserv s considerable thought as to overall financing methods. ' Th total potential cost involvement concerns far more than t at just for the Saint Paul area. Copies of the various repo ts have been requested in sufficient quantity for the Counci Advisory Committee. ,� .= _ f 1 ` ' . . � - Page 3 - In summary, the interim approval of the Engineering Report is impo�tant to serve as working assumptions for further studies by the consultant, b� the Saint Paul Council Advisory Committee, by the suburban groups and by othgr interested parties. In a sense the really difficult part of the work st� ll remains to be done despite a considerable amount of preliminary finance tudy. It is obvious. that a great deal of ingenuity, imagination and plain hard� work by all parties is necessary if a workable system and one that is f ir to all parties is to be developed. Respectfully submitted, v Eugene V. Avery Chief Engineer Ap oved: � � !'ti!i``� Milton Rosen Commissioner of Public Works EVA/j v , ,� .; ; - . � _Y��l �' ' �^ �• y � � • '�� • •� '��V V�� - l � ' � '^rr � 1 �4.+�✓ GE� ORGE M�S EPARD C I T Y °0,,,, F�� S A'I N T �PAi,� •'• wpO�E�H,�.N��,N�RERY �y° J STREET AND HIGHWAY S (�y U tL.ID r p��' �Iln� I C ENGINEERING COORDINATOR , �� T '�illGlli-.;,.,��. :;0+ �i C� =�o...�....f"` �^---'•' ;IIfC�pi�t�l of Minnesota : m p �� r G� ��e c.I{"I�TESTER I ` �� ,� . �.�...�✓�°`" - _ . `�M:."'^"��" � r E'��p � ^k W =�R�.IB��ERINTENDEN 'OF SANITATION ----�-- � . �"� DEPART,i�;;�Etf�T�OF�PUBLIC�WORKS ___^_ __=_„�u �� _ �- . r� ",�Illi.��i�iiiil�� O _ ' �r - _ ' � � '�t' Q �,,��Y �-' �ri r � � ■� A LI � � , l/� 2�34-City,�Hafl'8� Court House:�2)■�■�� 1� _� - f� I • T� x ! r � . .��i1� _�w!� J � � ! � �Y � g TY �.-}i.;i. .�, .,q„ _�--�-� �MILTOO�N RO�E�I�;= ai! ZII L� � � "� � �� a rs ;� � '� L--�� , @ommission�'r:�! �I! ,� �1 �J �y s �,-T ,� �� ` � . � � ',-'��tm-►?�t""'^' , WIL�IAM P.BEHRE�IS .,�,r°�`.,.r _ ��.-- �rrrrC r ( , .�..a�o� �_ e P'` a_. - _ Depufy�Commission�r—� i � ' i ' ' i � � I � i ' � + i � � � 1 :-�,................ . �. t ' ��'�'r•-s-� r a — � _ �ZZ __ � - i ' _ _ � i April 30, 1964 � Mayor George J. Vavoulis and ' Members of the City Council City of Saint Paul ' Gentlemen: The attached draft of a report on a long-range sewage collec ion plan for the St. Paul Metropolitan Area is submitted for your revie and your approval is recommended. This study was initiated last July pursuant to certain require- ments set up by the 1963 Legislature. Upon your approval it is to e forwarded to the Sanitary District for incorporation into the overa 1 twin-city sewerage plan to be forwarded in turn to the Water Pollut on Control Commission by October l , 1964. � ' The attached draft contains all of the written material and aps, but does not include photographs and certain tabulations which woul be in the final printed version. However, the draft does contain all f the material having possible policy implications and I believe you will find it very interesting and worth your time to study. The report is strictly an engineering report on a proposed lan of physical facilities and does not discuss implementation of the lan nor financing. A separate finance report and proposal based on th � - engineering report is to be prepared by a consultant with a target date , of August 15, 1964. Guidance and overall policy direction is bein given to the finance study by the St. Paul Sewer Finance Committee headed by Commissioner Peterson. This cortmittee has as members, i addition to three commissioners, various technical and citizen mem ers. It has established close and cordial liaison with a suburban finan e study committee and it is hoped that joint efforts in the coming f w months will produce a generally acceptable plan for implementation and financing. . . � � - � - �� . { V� i i � _ " - Page 2 - Target date for the completion of the attached engineering report has been May 1, 1964, in order to allow ample time for 'the finance study. It, therefore, would be desirable if the Council cou d approve the report as of that date or as soon thereafter as possible in order that it can be printed and distributed for use. Respectfully yours, !/• Eugene V. Avery ' Chief Engineer Ap roved: , � � ' lton Rosen Commissioner of Public Works EVA/j v Attachment I � � �:� � . • , .> ... r;�� ' . I ' I ' r N O T I C E 1 � This copy is a prel�minary draft of this report and fs subject to revisfon. The final published regart will contain � charts, tables and illustrations not �z�cluded in this draft. � f 1 � � � . � • i ' April 27, 1964 � 1 ' I ' 1 ' � � ' ' i � I ' , 1 � I . 1 I ' + � I ' � ' � ' I , { , 1 , ' . . Metropolitan Saiet Paul � Sanitary Sewerage Report 1 ' 1 , Ei�1GINEERIHG � 1 • 1 ' CITY OF ST. PAUL ' be rtunent of Publi+� Works P8 , Bureau of Engineering ; I I ' � 1 ' , ' i �;i � � 1 1 ' Metropolitan Saint Paul Sanitary Sewerage Report ' � I ' . ► I ENGITIEERING ! ' � A Report prepared far the City Council and recanmended for ( ' transmittal to the Mleneapolis-St. Paul Sanitary District pursuant to Chapt�r 882, Laws of Minnesota for 1963 commonly kaown as the "Ashbach Law�'. ' This report contains a comprehensive plan for sewage collection facilities required to serve the St. Paul Metropolitan Area and ' includea a proposed schedule of eons�ruction and estimates for the �' ' totat aonstruction coet. ' MAY 1964 ' i i ' � i . , � I , Depgrtment of Public Works City of St. Pnul Minnesota 1 ' ' , � ' � • f T�EITSR �AD OF MAYOR 3 OFFIC�) � ' - . ' w �' � 64 M�y 1, 9 ' 'Tha Bo�rd' of Trustees ' ' •�linr�caapol3.smSaint Pa�l Sanitary Diatric� 2400 CbiZds Road Saiat �aul, Minneso�a � ' ', Gentle�en: TD� C��y, of Sa3.nt Paul, Dep�rPae�nt of Pub12c Wo�ck�, �M31tci� Ros , , Coc�missione�, li�s prepared and recommer�ded to �he CiCq Councfl a compretne�s�.v� p18a go� ict� coilecti.or� of sewege €reu� thtise ar�as �ut�sid� the Ciey whfch age i�keS,y to be merviced thxough t�e Cit�► sewer sqstem: ' Tk�is co�prehensive plan is presen�md 3�r d��a3}. 3� ttt� ereclv�ed gepotst. This plan has been prepared p�ars�sarrt to Chapter $82, Laws oi I ' Miniiesota £or 1963, com�only called the "Aohbach Law". T'h� enclbse ' �eport includes a plan of C�e reqa�red facflities,• the total �stim� ed cost and e sch�dule oF eonstsuction. , The "Ashbach Law" also requixe6 t�►e City �o gree�nt a plan for ffnancing the construction of �he proposed method of div3ding the operating and coastructiv�n costs amon� the towns and mur�icip�lities , affect�d. These �aCter items will be included in a for�tecoming finance report expected to be sveflable about August 15, 19b4. The �nclosed engineer�ng report was approved bq the City Counc 1 •, on . , Z964 Council FiYe Ho. . . Yqu�s verq truly, ' � t sig�a) by �ay�or � ,' ' , , � ' � ' � TECEi�IICAL STAFF ' DSPAR'I'MENT OF PUBLIC WORKS Bureau of �gineeri�ng r 1 � I� ' Gen� eral Administrative Directian � Bugene V. Avery, Chief Engin�er ' John A. Des Laurie�s, Sewes Bngineer ' Pro ect Staff j �_ � . Clarence G. Spxague, Pro�ecC Engineer Willin� E. Meore, Civil Eagineer II ' Preparati�on of Dsra_ winRs , � Lawreace Reed, Ji. Public Giorke Technician 1 ' hereb ce tiE that thia re ort wac � re ared b I Y x Y P P P Y me" or u�des my direct supervision ar�d that I am• ' a duly Registered Profecs�onal Engimeer under the I l�,rs og the State of Minnesota. j i ' � . l � 1 ��°.�. i � Clarenae G. Sp ague Reg. No-. 6637 t , ' I I I� � , 1 � , TABLE OF CONTENTS ' CHAPTER I - INTRODUCTION . . . : . . . . . . . : . . . . . . . . . 1 Statement of Purpose . . . . e e . . . . . . . . . . . . . 1 History of the Problem . . . . . , . . . . . . e . . . . . . 0 1 ' Previous Studies and Reports . . . . . : . . . . . . . . . . . 2 Study Procedure . . . o . . . . , . . . . . . . . . . . . . . 2 Plan s t�re Pre 1 iminary . . . . . . . . . . . . . . . . . . . . . 3 1 � CHAPTER II - CHARACTERISTICS OF TfaE SAINT PAUL METROPOLITAN AREA . 4 General. Characteristics . . . . . . . . . . . . . . . . . . . . 4 4 � Politicat Subdivisions . . . . . . . . . . . . . . . . . . . . I ' Trnnsportation Facilities : . . . : . . . . . . . . . : . . . . 4 � Population Projections . . . . . . . . . . . . . . . . 5 � 1 ' CHAPTER III - EXISTING SF:WERAGE FACII.ITIES . . . . . . . . . . . . � Communities Presently Sewered . . . . . . . . . . . . . . . . . 6 � Temparary Force Main Erow White Bear Lake Area . . . . . . . . 6 ' I.ocal Collection Systems not Included . . . . . . . . . . . . . 7 CHAPTER IV DETERMINATIQN OF SS�E.:RVICE AREA . . . . . . . . . . . . 8 � � Extent of Comprehensive Plan . . . . . . . . . . . e . . . . . 8 � ' Comprehensive Sewage Works Planning Committee . . , . . . . . . 8 The Initial St�dy Area . . . -. . . . . . . . . . . . o . . . . 8 The Service ,Area . . . . . . . . . . . . . . . . . . . . . . . 9 , CfiAPTER V - SEWERAGE DISTRICTS WITHIN THE SERVI(:E ARFA . , . . . . I;0 Major Sewerage Districts . . . . . . . . . . . . . e . . . . . ��a Sewerage Subdistricts . . . ,. . . . . . . . . . . . . . e e . . 1`0 ' � CHAPTER VI - POPULATION OF SEWERAGE DISTRICTS WITHIN TT� SERVICE ARFA . . . o . . . . . . . . . . . . . . . . . . . . 1�2 ' Eetimates of Future Population . . . . . . . . . . . . . . e o 1�2 Twin Cities Metropolitan Planning Commission . . . . . . . a . I'�2 Estimates for the Year 2400 . . . �. . . . . . e . . . . . . . . 1�2 � ' Estimates for Probable Saturation . . . : . . . . . . . : . . . 1�3 � I Table No. 1 . o . . . . o . . . . . . . . . . . . . . . . 1�4 � CHAPTER VII - LAND USE OF SEWERAGE DISTRICTS WITHIN THE SERVICE � � AREA . . . . . . . . . . . e . . . . . . . . . . . �. 1�5 I Sewerage Facilities and City Planning . . . . . . . . . . . . . 1�5 I Classification of Lend Use . . . . . . . . . . . . . . . . . . 1;5 � Table No. 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 1� , Estimates of Future Land Use are Approximate . . . . . . . . . 1 � � CHAPTER VIII - CRITERIA FOR TF� DESIGN OF SEWERAGE PROJECTS . . . 1 I ' Preliminary Layouts . . . . . . . . . . . . . . . . . . . . . . 1 Local Systems not Included . . . . . . o . . . . . . . . e . . 1 • Design Period . . . . . . e . . . . . . o . , . . . . . . . . . 1 , Use of Existing Facilities . : : . . : � . . . . . . : : . . . 2� Combined vs. Separate Sewers . . . . . . . . . , . Extent of Comprehensive Plan . . . . . . . . o . . . . . . . . 2 ' Sewage Flow Criteria . . : . : . . . . . . . . : : . : . : : : 2 Table No. 3 . . o . . e . o . , . . . . . . . . 2 Design Standards . o . . . . . . . . . o . . . . . . . . . . . 2 , ' TABLE OF CONIENTS (CONT) -. , CHAPTER IX - BASIS OF ESTIMATING•COSTS . . . . . . s . : . : . .. 2 General e e . . . o o . . o . e . . o o . . . . . , o . 2�► Cost Trends . . . a . . o •o . o' o . . . . . . . . . . . . . . 2�+ Unit Cost Dr�ta . . . . . . , . . . . o . . o . . . . . . . . . 2� ' Miscellaneous Costs . . . . . . . . . . . . .. . o . . . . . . 2 CAA�'?ER X - DEVBLOPMENT OF THE CQMPREHENSIVE SEWERAGE PLAN . . . 2 ' General . . o . e . o . . . . . . a . . . : . . . � . . . . - 0 2 Calculation of Sewage Flows . . , . . . . , , . . . . . , 2 St, Anthony Park District . . . . . . o . o . . . e . . . . . 2� ' Rfverview District . . . . . a . o � . . . . . . o o . . a . . , 2 Trout Brook District . . , . . . . . . . . . . . . . . . . . 2 . Belt Line District . . . . . . a . . . . a o . . . . . . . . . 2 ' Lake Gervais District . . . . . . . . . . . . . . . . . o . . 2 White Bear District . . . . . . o . . . o . o . o . . . . o 0 2 Battle Creek District . . . . . . . . . . . . . . . . . . . . 2 Hendota Di�trfct , , , a . . . . . . . . . . . . . . . . . . . 3 , Table Noo 4 0 0 0 0 0 0 0 o e . . o . . o . . . a . . . . . 0 3 CHAP'3'ER XI - STAGE CONSTRUCTION OF SEWERAGE FACILITIES . , . . . 36 , , General o . o . . . . o . . . . . . . . . . . . . o e . . o . 3�i Basic Assumptions . . . . . . . . . . . . . . . . e . . . . . 3�i Stages of Conttruction . . . . m . . . . . . . . . o . . . . . 3� Table No. 5 . . . . o . . . . . . . . . . e . . o . . . . . . 3 , CHAPTER XII - CON('1.USIONS , . . . o . . . . . . . . . . . . . . . 4 � ' APPENDIX A . ACKNOWLEDGEMENTS . o a , o , , . . , . . . , . . . . . . . , A 1 A 2 ' APPENDIX B POPULATION & LAND USE TABLE S . . . . . , . . .. . . . . . e . . B 1 APPENDIX �C. ' SEWAGE FLOW CALCULATIONS Facilities A-140 to A-170, Year 1970 . . . . . . . . . . . . . C 1 I ' Facilities A-100 to A-139, Year 1970 . . . . e . . . . . . . o C-�2 Facilities B-l0A to D-101, Year 1970 . . . . . . . . . . . . . C 3 Facilities A-140 to A-17A, Year 1980 . . . . o , . o . . . . . C 4 FPCilities A-100 eo A-139, Year 1980 . . . . . . . . . . . . . ��5 � ' Fr+cilities B-100 to D-101, Year 1980 . . . . . . . . . . . . . C 6 I Facilities A-140 to A-170, Year 2000 . . . . . . . . . . . . . C 7 Facilities A-100 to A-139, Year 2000 . , . , . . . . , o o . . C 8 � ' Facilitiea B-100 to D-101, Year 2000 . , . . . . . . . . . o e C 9 Facilities A6140 to A-170, Probable Saturation . . . . o . . o C 10 Facilitiee A-lOQ to A-139, Probable Saturation . , . o . , . . C 11 ' Facilities 8-100 to D-101, Probable Saturation . . . . . . . o C 12 Existing Trout Brook, System, Probable Saturation . . . . e . . C 13 Facility A-99, FrobabLe Snturation . , o . . o . . o . o . . . C 14 1 ' ; � ' . � ' ' - ' CBAPTER I ' I N T R 0 D U C T I 0 N Statement of Yurpose ' The 1963 Minneaota State Legislature enacted a law cammonly � � ' referred to as the "Ashbach Law" which requirec the Minneapolis- ! St. Paul Sanitary District to adopt a coraprehencive plan for ; constauttfon and financing of facilities required by the entire area I ' �erved or to be served by such DfstricC. Thie law £urther provides that the comprehensive plan 01sh�ll include plens prepaxed and approved l by the governing bodies of Minneapolis and St. Paul for the collection treatment, and disposal of sewage �or the entfre area likely to lie served by the sewa�e treatmeint Eacilities of such district.t° This report presents a plian for the collection o£ sewage from . ' those areaa likeiy tio b� served tb�ough the City of St. Paul. Lric�uded in this report are (L) a plan for those facilities required to be ��nstsveted, (2) a propoaed schedule of construction, and {3) esti�ates of the total cost of co�struction. The "Ashbach Law" ' further requires thaC Minneapoiis and St. Paul. ,�hrnugh the !linc�eapolis�-St. Paul Sanitary District,, propose a plan to finance the consCruction and the propdsed method of dividing the operating ' and constructfan costs� among Che towns and mu�licipalities a£fected. The finance p1�n is not included in this rep ort but will bQ eQvered in a separate report to be available ebout August 15, 1964. Pursuant ' to the legislation, the Sanitaiy District is to forward to the State Water Pollutfon Control Commisgion by October 1, 1964 the comprehensiv i� plans for the entfx� area likely to be served by the Dis�xict. � ' History of the Problem � ' - In Che period following World War IY, n�ban development began � major expansion to areas outside the CfCq� of Saint Paul� Aiany o£ , these ��ea� developed without a central sewer sqs�em and deper►ded upon septic tanks or othes ictdividusl disposal syatems. Such �sys�ems are usuelly uasatisfactory as a permanent dispos�l facilitq in urban areas ' A p�r�ion of the ci�y of West Saint Paul has been sewered through the St. Paul sewe� syatem under a contract ordinance since 1921. With tbis exception however, St. Paul did not provide sanitary sewer servi e ' ' . -1- � 1 1 I ' � to areas outside the City unti2 1952 when North Saint Paul abandoned its sewage treatment plant and coastructed an interceptor sewer to ' discharge to the Saint Paul sewer system. Since �that time ordieances have been enacted authorizing all or part of thirteen separat� municfpalities to be connected to the St. Paul sewer system. These , municipalities and �authorised Arens are d�ecribed in detail in.Chapter III of this report. ' Previous Studies and Reaorts ' Confronted with this repid expansion of urban development, the Hinneapolis-Saint Paul Sanitarq District engag�d the firm of Toltz, King, Duvall, Anderson and Associates, Inc. in Maq of 1956 at�d aathori ed ' an extensive engineering study of the future sewage collection and treatment aeed s of the entire Twin Cities �Setropolitan Area. Thia engineering study was carefully and competently done and involved over five yenrs of detailed investigation and design. The final report i ' gresented to the Sanitary District was entitled ��ReporC on the Expar�si n , � of Sewage Works in the Minneepolis-Saint Paul Metrqpolitan Area. •Volum I Three, September, 1960.�� The data and criteria developed in this � � report are stil! valid and have been o£ invaluable essistance in the � preparation of this report. � i However, the 1�in Citi�s area has undergone rapid growth and � ' devetopment and there have been many chenge� and additio�e to the area I served under contrac r•ordinances. Therefore it was determined that the� fincltngs of this previous study should be reviewed, revised and amended ' as necessary to present a canpletely current report. This is t he primary objective of this report. , - It woald be imposeible to properly document and give credit to everqthing contained_ hereia which was derived directlq from this original engineering study. Hhere such �credit is given the repo�t is referred ' to far simplicity as the "TKDA Report��. Study Procedure ' j In organizing and carrying out this project iC was recognized that ' to the Fullest extent feasible, the local knowledge, plsns, suggestions I ' and vi�ws of elected officials arid engineers from the canmunities affec ed � should be taken into account in order for the results to be as realisti� as possible. Pursuant to this objective, the St. Paul •mayor's dffice, , in Hay 1963, contacted 33 municipalities and townships which could conceivably be sewered through the City of St. Paul. These municipalit es � and townships were asked to name a policy making representative and � ' an engineering representative to cooperate with the City in preparing � this plan. Each engineering representative so named was contacted by � the Department of Public Works and asked to furnish certain basic data ' ' "2° . � i � ' as well as any local engineering etudies or �reports whfch might be evailable. ?he response to this request was siccellent and most of t e ' presently developed cammunities submitted detailed informetion: The engineering studies and reporCg prepared by the var�ous consulting engineers for the local areas have tteen especially helpfal and have een most influentiel in shaping and developing the enclosed comprehensiv ' plan. Here again it is impossible to completely document the role e �ch of these reports has had in shapfng the final comprehensive plan. A list of credits and acknowledgements is included in Appendix A. � Plans are Prelimina ' It should be no�ed that the lans for ro os d P p p e facilities are preliminary in nature. The various sewerage district boundaries are ' epproximare and as local sewer systems ase developed these boundaries wfll be subject to minor change. In fact it may wel,l be that a detai ed study of a given area will indicat�: that the boundaries should be ' � changed from what fs -show�n in this report. It is believed that ehese local changea wi�� tend to o£fset one another and the overall effect � upon t�e comprehensive plan will not he tao great. ' The facflities proposed herein represent a worknble arrangement or a sewage collection system for the service area and heve been selecte as a result of detailed stt�dy and investigation sufficient to make ' reasonablg nccurate ahd realietic estimates of constructfon coet. H ever the plan should be reviewed and brought up to date prior to each construction step to easure that fac3lities of the proper�•size are ' constrtuted. ' ' ' , 1 i � 1 f i I � , ' ' -3- i 1 ' ' ' CHAPTER II , C H A R A C T E R I S T I C S O F T H E S A I N T P A U L M E T R 0 P 0 L I T A N A R E A - - - - - - - � — - - - - - - - - - - � — - - - - ' General Characteristics ' The characteristics of the entire Minneapolis-St, Paul metropoli an area were discussed in great detail in the TKDA Reporto This previ us report has sections devoted to describing (1) Geography (2) Water ' Resources (3) Atcea Development, and (4) Population. Review nnd consi�deration of these factors is essentfal to the preparation of a y comprehensive sewer plan. Flowever since many of these factors are ' basically unchanged since 1960 ft is not believed necessary or desi able to repeat all of this data in this present report. I ' Political Subdivisionc , One area in which a signifieant change should be noted is in political subdivision. Several new municipalfties have been fncorp ratsd since the TKDA Report was prepared. These are Gem Lake, Fine .Sprin s , and Northdale. In addi�3on there have been chenges in the munfcipa boundaries of some communities. Figure No, 1 shows the boundaries f political subdivision within the study areas as they existed in 196 . ' Trans oztation Facilities ' The transportetion facilities of the �tain Cities area were discu sed in detail in the T�DA Report, The joint land-use and transportatio , planning study currently being prepared by the Metropolitan Flannin Commission, the Minnesota Nighway Departmen�, the two centrel citie , the seven metropolitan counties, and others �ill be of valuable , assistance in planning se�ers and other Eacilities. However this s ndy i is not scheduled for completion until 1965o The Interstate and Tru k Highway system and other streets and highways will continue to be v ey influential in shaping the development of the metropolitan area. T e ' major highways are also shown on Figure No. 1. ' ' -4- � i � . � �� , ,! � � � � 1 � � � , 1 . ' � 1 � � . � Q � � � 1 0 , � 1 �S & � . � . � 1 � � � �� .�,� �,,�� _ , IK ��r��l�� I��- I ' �,. � � I I��1� i ,. , I, •, � , ,, , , , I ' ;,, • I ;, I � i � ' ,� � ' ' , � � i � '' , , � � •, �� , ' •,�� • . � I ' I ' I i ' t • � 1 , Po�ulatfon Proiectio�is � �. 1 The ma'or chan e in the characteristics of the Twin Cities area ] 8 since the TKDA Repart was prepared in 1960 is in predicted population ' trends. The total predicted population of the seven-county metropolitan area was 3.0 million pezsons by tbe year 2000 at the time the TKDA Report was prepared. The most cu�rrent esticaeCe of the Metropolitan � Plannieg Caa�mission predicts 4.0 miZlion persons in �his same area b . the .year 2000. The 3.0 milflion estim�te formerly predicted for the � year 2000 is now p�edi.cted for the year 1988. This �s a substantial , increase and h�as co'nsiderable effect upon the sewerage plan. The distributfon o! popul�tion throUghout the seven-county •ar.ea and th� breakd�or�m into sewerage districts within the St. Paul service area ere discussed i.n C�apter VI of thfs report. � ' There hae been no substantiel change in the re�aaining area characteristics discus�ed in Part Il �of the TlmA Re�ort and the ' reader is re€erred to t&at repost f,ox e complete and �xcellent coverage of thoae items. ' ' ' , ' � ' ' � ' 1 t - ' -5- ' , , , , CHAPT$R III , E X I S T I N G S E W E R A G� E F A C I L I T I E S ' Communities Presentiv $ewered ' , There are Chirteen subu�ban municipalities which utilize th� St. ' Paul sewer system for di�posal of sariitary sewage as of April 1, 1�9�i4. Sev�ral othe� communities are planning sewer sqstems or have indicated a desire to obtain sewer servfce through St. Paul. The thirteen ' municipalities presently connected are as follow.s: , l. Arden Hills 7. North St. Paul 2. Falcon Heights 8. Roseville ' 3. Landfall 9. Saint Arrthony 4. Mahtomedi 10. Shorevfew 5. Maplewood 11. White BeBr Lake ' 6. Mendota Heig�ts 12. Woodbury Township ; 13. West St. Paul ' Figure No. 2 shows the suburban areas which s�e presently sewe ed through the St. Psul system. Also shown are the lfmits of sewered rea authorized by existing contract ordinances. The sewer systems in th'ese suburban areas are all separate sanf�ary sewers. Tho�e sewers whict� ' convey sewage from more than oa�e co�ttnunity are indiceted on Figuse �o. 2 as jointly-used sewers. Within the City of St. Paul, the jofntly�u ed sewers are all combined sewers except the Batt2e Creeic sewer which e�as secently construc�ed and is a separate sanitary sewer. 1 Temporary Force Main from White Bear Lake A�ea ' � In 1963 two gumping atatibns and" a force mafn were constructed by ' tt�e City of S�hite Begr Lake to pump sewage from that comsnunity to tt�e City of St. Paul sewer system. This permitted the existing White Beax ��ke sewage treatment plant to be abandoned. In addieion to the City of , White Beaz� Lake, capacify was provided in the design of the force m ,i� for the following communfties: (1) Birchwood , ' (2) Dellwood (3) Mahtomedi (4) Maplewood � ' (S) Willernie , =6_ I : � I ' ' W U . � Y�4. . -��yo , � z w N a�� ° Q��g , Z a ' � � � O �� o� V �H � w � o� ai � 1 � I � � � � � a � O ��O I Q � � �s� , .ttµacr, enlabrar,� � �v o � o�o� A1N7G7 Y.IGWY Li. �� 3 `o m W ° � $a ° � `�� ' o� � � a ,� 3 0� Eo�—�',� � � W �� E� � ��.a�. � ' � 19 7— M x - g� �' � ' a � �� ¢¢ � «�ib� � �I I � � 0 � � ' �, , o , , � , � � � � , � �� ' i � ' o � � �� . � , o � . 1 � 1 I � ' FlGURE N0. 2 � � I , 1 As of April 1, 1964 only :dhite Bea� Lake and �iahtamedi are conn c� �d :to the force main system. The design of this system was on a 10 yea� ' baei.�. Therefore, the system is indicated as a temporarq one. Repl�ce� ment with permanent faeilfties will be discussed in Chapter R of, thi report. ' Local Collection S stemc not Inclt�ded ' No attempt wfll be made in this reporC to describe in detail th . exi�ting sanitary sewer�ge facilities of the various suburban ' communities. A� st�ated above, most of the St. Paul sewer system fs of the �combined type. Combfned sewers carry �anitary sewage and storm wdter in �he same pipe. The eic3eting St. Paul cambined sewer sys��m the sanitary interceptor system and sewage treatment works of the Minnea oiis= ' St. Paul Sanitary District are all described in detail in the TKDA R port. , 1 _ ' � , ' . ' ' 1 , , ' -7- ' 1 � ' ' ' CHAPT�R IV � , ' DETER �I � NATIOtd OF SEBVICE AREA Extent of Comprehensive Plan ' , The purpose o£ thfs report is to present a comprehensive plan o ' "jointly�nsed�' trunk sewers for the collection oF sewage fram "the � entite area likely to be served" t•hroug�i the sewerage syetem o� the City of St. Paul. Sewers to be used exclusively within arid by a single ' community are not included. � Comprehensive Sewaxe Works Planning, Committee , ' ijpon enactmen� of the "Ashbach L,$w" a Comprehensive Sewege Warki ' ' Pl�nnfng Committee was fvrbed consfsting of engineexs and technical pereons appointed by the respective goverfling bodies to represent the CiCies of Minneapolis and S�. Paul, the State Water Pollution Control Commiesion, the State Baard of Health and the Minneapolis-St. Paul ' Sanitary District. The purpose of this committee is to coordfnate t e plannirg activities of the�e seve�al agencies. The ou�sid� boufldaries of the area to be 3nitially studied were agreed upon by the cammittee. ' These bounderies conform approximately to.th�outeide boundaries of the Northeast, Northwest, SouthFres� and Core Regions as shown in the orfgfna2 R'KDA Report. 'I'�is study area was then divided into thxee areas. On� , __ area was assigned to Minneapolis, one to St. �aul, and one to the -• Sanitary District. �he responsibility for planning sewage treatment facilities fo� all three areas ��s by general agreement re[ained by ' the Sanitaay District. 'The initial study area assigned to St. Paul is shown on Figure No. 3. ' This committee further established that the facilities compris�ng this compxehensive pLan should be designed for cond�jtions estimated �o exist in the year 2000. ' , . . The Initial Study Area ' Iri Ffgure No. 3 the St. Paul study area is shoum in three separ te , classifications. The area in one class3fication ha� been de�ermined ' after study to be tributary to systems other than the St. Paul sewer system by reason of natural topographq. ' -8- � , ' The area fn the second �lessification has been determined to be unsewered or sarved by temporary facilities up unti9. the year 2000, ' The area shawn in this classification is in Oneka entl Lino L�+kes Townships and in the Village of Hugoo From �the present population an� devel'opmen� of these areas and f�an current estimates of future growth in population ae�d development� ft does not appear likely at this tfinelthat ' th�se areas would need �or couYd finance a system of trunk sewersa Therefore the �comprehensive plan presented in Chis report does nort include faci�ities to serve thi� areao It is likely that there �ill be some small areas ' of local development within this 18rger area which will require a cen ral sewex system before ehe year 2000, 47here temporary sewage treatmenC plants are noti feasible for tltese local s�etems, the faciliCies designed ' for the communities �o the south could be used �n a �emporary contrac� basis, These facilities will Y�ave excess capacity until the �ime the e southern communities reach saturatio� popula�iono By this time there ' shou2d be adequate developanent in Oneka and Lino Lakes Toatnships to finance a second system of trunk sewers to serve these areaso , The Servfce Area • ' The thisd and remaining cl�ssff£cation of area shown ot� Figuse Noo 3 is designated as the a�ea to .be aew�red th�ough d�e C�ty of Sto Paul at�d is referred to as the servfce areso Eor purposes of thia report the sescvice area include� both those areas presently sewered ' thraug� St, Paul and thoce likely to ba rewe�ed through Sto Peul by the y�ar 2000, ' ' ' ' . ' ' � , ' 1 ' . 1 • , � �90 � i 1 I � W y�U Y>li ��o ' ��Wo M Fm�Z � Z a�� - N� � o �� _ ,� � �� ; o� � U F� .'� o�� •'i m .� .� 1 •' " , ' � ' Q U b �. lL � `� �� , � �� /� U �/' VJ � �� Q � o � � ' �W, ' J � � � � �a Ur �_ �� 8 � � � - a � �� ° �� 8 �� 4�N � w a � a� �� a� � >- I � � 0 � � � � � � �� ° �� , 1 i � i 1 � ► 1 - - � -- - 1 � FIGURE NQ 3 i I , � , ' ' CRRP'rER iI S � WE RAG � DI � '� RIC � S ' �1YTFiY� �i� T � � SF, RVICEr �AREAI ' Moi�Qx Sesserat�e Distric�s ' Afc�er prel�.m�Lt�car�+ investiga�ion af seversl a�.S:e��atie �nin�C se�aex� �r�ange�ent� And stu�ly o£ Y�ca� plens and xepart�t, t�e se�v�c� �a�cea wes divfded �.x�t�o e��ht �ajo� sew�rag� dis�i3cCa anrl �i3 sewe�age subd�s�gi��6„ ' 3'h� efg�sx r�jmr se.��erage d3�rric�s are desi�rnat�d ss fatl�as: � t 3) SE:, An�hany Eark Q 5? Y.�4�� Ccrva�ta � t 2) 'S�at�t Fi�raa�C (G) FS'c�i te �e�ix t3) P�e�� LSna Q?a Ea.t�Ye Cree�: i4) Rl�verv��w (8? M��ido2a ' T��sa� sewQregA c3iseri��s a� su��a�ri�ts cs�� nho�c� o� I'��u�� lo0 4o The fir�� eu� of•t13�ae c�rsjar �ewe�ag� dis�:�.•ices, naunr�l� the ' Stio Anthomy Pagk9 3'scou� �roak, B�lt Lix�e nrcl �tiue�iew di�e��cti�, co� s�� of arees E�t�f�ta Rse eE�en�islly s�cre��cl c�r ��aChaFi�sd �� cew•��ed a the �Sre�ent t��o• �'i�e �eweYS in tbec� subuxbat� arees a�xe c�ar�r��zed � � the St, Pact! co�b3�ed secr�� Qys�ems b�aging th��e e�sr� n��:sa ?4ie s�udi�a o� �t�ae a�eso, ins�F�s as thfs repa�t �� Ct7�C8�E:E4j� cons3sr�d o� est�m��ing �utu�� lc�as �n joi�tlq used se�aers �� d��e�� i,f �€� �s��sen� faciti�ies caili be �alec��.asg�o The ��sults of �eie�e s�u�fe� t��e ' fr�dic�tEd it: Chag�a� �o The rem�in�n� £our �asjor di��ricCs rer�ul�-e ex�enaf�� ca��tructi a ' of n�w ox �dd�tf ara2 feciif��: to prov�de �e�i!ee Ci�ro�g�i �he year 0'Dt?, LL- is the p�ir�ary pasr�o�e o�' gh�.� �epart 3,o pA�n �I��se x��a��es3 faci i�ie�, est3r�a�e �Fxei�r cosz. end '�o e��"solis� ara apprmti�aate a��tQdssY� c+f , ' constructi�o�. : , , S��er��e Subd�c�ri.cte ' • Se�•�er��e suhdi'st�ict bQUa�daxies have b�en estirs��rl sa x�s �o ' de�ermf�e �Yse r�c�u3red cepu�i�� o� C�ia £8ciift3es asld ��.so indicate �h� E:ma�nt of se�a�ge ir� any f�c�.�iCy �r3��r�ca�in� ��om � g�.den c,ur��aZfr�o ' �lp� ' - � i � W U Y�t� J�yp � A�z w � d�� Finaz O Z � Z Q�v� ' - � y� � � H� � � �w � } �N ' t U �� I` o�� I N � ' � I ' Q , ( �� S � i , � � v, � U � ' � , � � � � � � � u,� �� , � & � �1� �� f � � 1 � � o � s 0 W �� , � C7 z ° , ' ' � � � � 3 � � ' � N w 3 r^ � \// � ' �a ' ~V� Q \ s� W M�,(!�� .i ��r� -°o G„�Q ' 7 Q i s . 1 � - 1 , ' � �IGURE N0.4 � � � i , ' � Tht�a ttte divf��on In�c �e*�esa�e pcsbrli��ricts �s gov�rzt�d i�y poRwti�et�l� ' b�ucadaries as well a� top�gr�a��hya Tn �o� ins�ance� �he pAC�ern �� eew*c�r�ge su�ctisr.�i��s �s elreedy s�C nnd �e�t�t�i4she8 bg e�i,�f:i�g sewe,r systews, Ie� n�l�er tnr�et�nces ��e baunda�3�s shocm a� rf�are idoa 4 - _ wiAl change so�n�ir�rat �sh��f �he Zacal. sewer system� axa Rctia�liy design�d ' and conctC�ucted, �aeh c�anges x�ili L-end to �o�nt�erbalas��e o� enothe�r. �nd wi11 have an incigi7f£��,c�� effect upon �:he ca��ciC}+ x�quirem�nts of C�te maj�r iaeil�t�.es �a�pr�.sing t'he carapretn�nsiv�e p��e, It ohou�d , tae emphe�s�$ed hcrw�� that the �rlan proposed �aerein shatx�,d be x�eview d at�d ze-¢valuated ae eacln stage of c�c�eruzt3un i� uee��Ytc,��cpn in �u�ur�e yearso � • ' . ' ' ' ' ' 1 ' - , ' 1 ' 1 , �i�e - ' , . , , ' �HAk�'ER VI — � k� OP �l L �1T I4Yi 0 � SE tdE 1RAGE - ' -- — �-- — -� — — — — m . DISTRIi� Ta W � �i H 3: K �' �i � SE RVxCE � REA ' . � Ectim��es o� k'1�tur�. Popu4e�tfon ' In Chapter II i�t wa� ind�c��ed �hnt Lhe pnpeal�►tic�ii projec�io�t� for tc�e Tt�rf� Ci�tias meCropoli�an areR fiaw� 3ncreas�d substantf�tpy si��e the TKDA RLepbrt w�� pxepar��, Th_s�efor� it c�se necesfar� �� }�r�pas� revised , prpulatior� es�f.akstes �or each of Che 83 seweacage subdistsr#.zts ifl order to ca2culx�e �ewage f lc�r�so � , Twitt C�ties �ieta-e�nli�an PianninR �c�,ission .._. ' T1� 7�'wfn Citie� FJ��gapalfean P�ane�in? Co�emies3.an �ira� a ska£f of p�afes�ional pla�nnQr� ��e1I qu2i3f3eci on pupuEation �p�ajertion ��thuds ��d �r+�cedure� and is g�r�es�l.�y loaked upon ar� t6e r�ost relit�ble souree ' ef futu�e popeilation 4.°$C��3�z?:3� Estimatee vf populat�o�► for the �ears� �97Q and g930 wer� o�tefned £or. each nun��i.pelity �roe3 hlet�opol.lCa� )�%e�nin� Repor� t��zcsb�r �'l.s,e, L�ebx�viar , I961, r� puhlication o� �he T�d o t 3.�.��s� �sopulatZon tAtal��c�r e�.ch mtAe��eigal�.�y were xk�� d?.�tr�Yuted araong tiae v�ri�us sew�r�g� �ubdistr3cxs a� a pert a� tlee wnrk under thi� seporto ' ' ��imat�a fe�x Cha Year 2d00 . ' !�� previouely mentic+n�d in Chapter IV ich� �ampre��aive S��age b�orks Planning Co�r�ittec d��et�3ned th�ttc CtaQ fac�ilitfeE �o be 3ncluded �n tlais plan shoslc3 bE �clequaf:� £ar eondi�idns e�ti�ted to exibt �.n ' t�e yeax 2000o Thus it b�casa4 nec�ssary ta obtsin a y�ax Z000 pr��ul.ati�on es�imai.e fnr �ae�i af the 83 sec�r�xa�e subd�st�icts wi�hi:� the sexvice a�c�a, ' �he TCi�FC i.s �urx�nely pxepari�i� detailed esti�atiea af qear 2060 ' gcp�laticsn �s a paxt of t�� 3s��n� Y.and Use ancl Transporta�ion Study � scheduied fos ec�eup�.et�on in I965� it was det�rmined t'haY these �s�fmat�s ' u�cs�ld riQt be av��l�b1,e in t4.a�e go �e uaed in �his studyo �''t�er�£ose e dis�tiet by distsict estfma�e o£ �rea� 30�Di7 gaguletian for each af �he �3 Ibtzbdfst�fcts in the service are� u•as ��ce}�ared as a par� a� the work on ' t6is sepa��a In o�itaining Chne+� estfc�ates the pre�ious values in the � � . ' -t2� I . _ 1 , TKDA Report w�re utilized, the estimates in reports of local communiCiec , were used, end written infarmation and verbal advice from TC@�7PC was used to the extent availableo The year �000 estfmate so obtained £or the I entire service area is 379,005 as compared �aith about 340,000 estimated ' for the same area when the TICnA Regort was prepa�edo At the requesL of the Comprehensive Planning Committee the TCF4PC agreed to break the seven-county poputation estimates down into six ' districts, namely (L) Northeast Region, (2) Northwest Region, (3) Son�hwest Region, (4) Southeast Region, (5) Core Area, and (6) the area outside of these regions butwithin seven-county areao ?hese regions � conform to the boundaries shown on the ?KDA Report, The boundaries of the service a rea being considered in this report , are partly within the Core Area and partly within the Northeast Region but do not lnclude all of the Northeast Regiono Also a small part of the cervice area is within the Northwest Regiono Therefore this six pnrt population breakdown c�n be related only approximately to t he ' populst�on of the service are.aa In January of 196G the TCMPC furnished an estimate for the Northeast Region of 120,000 in the year 1990, Relating this to the service area being considered in this regort resu�lts , in an estimate of epproxfmately 300,000 in the service• �rea by the year 1990o Thia value compared reasonably with the yeer 2000 estimate of 379,005 which was fndicated aboveo ' However� in February of 1964, TCMPC furnished an estimate for the Northeast Region of 330,000 by the year 2000o Re�ating this to the � service area being considered in this report resultc in an estimate of � approximately 450,0�0 persons within the� servf.ce area by the year 2000 Assuming this latter value to be the more nearly correct� it appears that �he service area estimate of 379,005 which fs shdwn on the tables , ' charts and flow calculation streets of this report as n year 2000 value ia on the low side, and on the basis of most current estimates, will probably be reached about 19950 ' Estimates for Psobable Saturation � ' Since it appears that the service area boundaries are ffxed on th ee sidea and that the area within the service boundary will reach saturation ' development within one to three decadea after the year 2000, an ectimate ' of the probable saturation populRtion was prepared as a part of this reporto The total es"ti�nate for the service area is 559.490 persons, ' This probable saturation estimate is not the maximum number of persons which could possibly live withfn this area, however it is not likely that the number of persons living wtthin this area will exceed thfs value within the foreseeable future, As will be explained in a later ' chapter of this report, the probable satu�a�ion population has an important part in selecting capacities for proposed Facilitieso ' • I � 1 e13e I 1 , 2'he servi�e a�ea � u2$ti�n e m� " P p �ti a�es cuex'e d��gr�.hu�ed to �he 83 r,�tsdivtric�s �s+ ard�u tA pc�geT�.3� esE:io�a�e sewage floas ic� tha vr�Y3.auz , �as�i33ti�er and to ��timat� reqt�3xed eapteci�fes„ ?ab�e ?�o0 1 .3nsl�cstQe ttoe estima�:�d popU�ntion� t`or bs��h of t't�e c�jor iewerage disCriet�o � T��es �si1a*�r�.m� estf�ate� _fnr eac� o� the subdfstr�c0:s are iaicLuded in ' App�ndix Bo � ' �'�18I�E N0. 2 �STZMATED YOP€IL.4TZOAl ��" ' 1�fAJ0tt SEWEFiA� DISTRICTB ��dVED 1`Hi ROUGi� 'i'NE C��'Y OE ST. PAUL � , �...._a.....� ' �� Ta��I E�t�E�ted Popuir�tions� } . ' I fsCric� F.9&� 2970 1980 �000 � Probable � Sa�t�ratian ' E�.sC�Cle C��tk 7s�I5 � Isr,�00 34,700 ' S5r2�0 9�2,$30 E�lt Lfflg 4,379 8,QQ0 10.b00 �3,600 20,OQ0 ' Lake Gerva�E� �.�,,bIS �.8.904 33,I2� bb.325 1�2,23U itiverv��w °3n�00 Z9,0(}0 24,460 2S.58Q 30,40Q �tp A�t�e�np P��k �,,927 2,Sai3 2,Sa0 � 2,500 2,500 `Troex� i�ro�+k �.0,�30 �8*7�0 7�.bOf? �Fi,Q60 1Q8,U00 ' rtsar�a�s �,i�3 8,50t� • L4,2Q0 Z3,44� Zg.SSU t�hiee Iiear �a,:39� 55s�►�fl a2,59U 106.�i00 167�98U ' Ti�i ALS 2"�r3�4 L8Sa�`20 227,775 3�'n,i?r35 55�,490 ` a I , � +�Eapulatiox� o� ciis�rict� �a��fde Sto Paul City X.�ra�.t� tt�ve not been ' ��iva�a f� �t�� pr.�� h�ao ' , , ' � °�4° ' , , ' � �H,�.P�'ER 1�T� ' L P� t3D U SE � F 5E t� � IiAGE b Z � 1' R3C �' S � ITEI IAf 'TH � SE RVYCE AREA , S��a�ra�e �rtciLities and C�L'1a�� ' T�is�e is a �he:c►xy o£t�r� er�pressed by e�tl� plenners ae�d others ehnt ��:e prc,v$si�a� af s�we�age fa�cilities az�d at��r ntili�fes �hould b� u�e� ' as a tcoi or �taplerne�eti to shap� lond r�sage c,nd dQ�e�upmxnt ��ato t�e "�� r�s�.�rab�Q" pai�ear�s� f313�Ie it Ya b�yand t� Bcop� o� t�� report t� d�.s�eass �,�, c�rixe o�E e�►�,s tti�oxy, �r �hou�d be urede�e�ood 8t tT�e ro�t�e� �h�t� r�b h�C�mp� �as b��n made �� tt��iw s�udgt arcct repmr� �o . ' • �ccasapl:��i ��f.�a F�rsts tl�e p�a�i�as �,egalg� Q�'�sr,��ted ��et► �he pr�p�r�a��r+ a�� app�avaY af tFa�s �e�ort a�� noe in a gosf�ian �o ta.��ermine wh��e ai�t�la�edat pe��e�n is "mn$t c3�siraY�xeos got ehe ' �ltci�cc��anft� cs.a.�t �tr�r�litar� �rea nmr ��ta� e�.anges iiti cie��is�mt�� king pa�tex�res w� poi�.e3Q� �►�u3d be ne�e�sery �p ac�£e�re ito St9e�d:. �t�e tf� �.��3:�ab�Q fox preparat�.ur� �F �b�e s��ort ar.d �h� -�esaurCQS , ' _ d�v�ted tc� f ti� d�.d aat �s�nix ��aE extee�s��e �esenzc�a which wuuZd be � ��er��s3.ga�! �.r, $r�pax� and to aclect °'mos� dcu�.rsble�� d�v�loginent gatteg�s, T?�f�:d� randar ttte ba.��s of nlar�ming sec,reza�e £�acil�tfe� itdopted �n th�e �:epor�9 az�rnasl coEa��t�cia! ,snd industr3r�.1 Yaracl u�e d.oes �oti ha�r� Rs ' great an effect uperi �he �in�� x�suYe U� sni�h� b� it�w�fneda rh� �lsre presat�t�d herc3.n is �t8ierefo�e, ora� prav3ding •ade�ua�$ s�wernge fcc�cf Iities f�P al�ao�t any s�easonable pAtte� a� pagvla��n und l�d ' u��o No considerat3.c+� is �iven ta ti�e us� o� the sewe�age plan ae a ko�l for far�ing .;��sin develt�p�en� patt�snso i.�aaa:if�cakion o£ Lansl EJ� ' . ' Tatile Y�?oo 2 su��rLzs� �tie� vsrii+ua are�� itiain �he aaa�or s�werag� di�trictso �rc�� a�ea ind�c�.�eo sll ��e� withis� dis�t�3c� b�unduries, Ar�a c2as�ifsed as unse�e�r�ble �+ncludes lt�nd ruch �e lakes �nd aUaop� ' which cannot he re�dily developed but also includes t�tase 18r�e de£inmS�l� tracts af l�r�d whose �as� cio�s not require ��ni�ar�r se�r �e��vice, such �s �i�tegAt�te �f�.g&w�iy r#.ght-af�way. cemetiesies, wa�Qr ci�partr��nt r�ght�o�=way, gar��, �02� arur�es an3 sim�.Iar rlesai�icat3otas, ' , �lS� 1 , ' T�a�,� �o� a ' �STIPSATED LANA i3� OF I9EIJQR ��dFCirS�� TIISTPiYC."FS �ERV�� 1'HROUG�I TNE CITY aF S`T, PAUF� ' - ' r Total ��timated Areas in Acre�� Disf:x�ict ��8 Total ' Total Comm�rcia Residential vaesewerable Sec�arab?e � ins�usrr{aF ' �::r.'��ie C�ae�s I2,2S3 1,093 1Z,I64 i,960 9,2Q0 Ba:lt �.�ne 2�370 I80 2,�I90 390 Z,500 Lr�ke �Qrwais • 22,9fia 7,'9I5 15,045 1.Aw0 t�+,005 ' Rfverdiew 3,�90 385 2,905 ' 200 2,?OS .5�, �nthonp P�ric ��0 125 8b5 b35 170 rout Brook I6,9S0 3,495 13rG55 2,4$5 I0,970 ' ' �iidoka 7sQ�� 1.365 5n72� 530 S,I90 �liite B-�s� 23,7a5 3n946 19,��J 1,2?0 �8,57� �!'AI.�► 89,52�a i8,S�J�► 71,320 8.SI0 I 62,b10 ' �,- , � � k ' 3�r�a QE dis��frt� �rs�idr� .�ro I��ul Ci.ty Li�its have not �een inc1uded 3� the P.O��S 8�10Wii,- ' S�ec3erebla �rattsi �.r�dicaL•�d it� the tab��: �s �he g�rosa area le�s the �.an��werabiQ a�ea� Thuc ��we��bie ��a �rs bc�t�+ c�e�gories �ncludea 1 d u��a ��r aia�rr�3Y ��c,et pux�}�osea, small narkrs, m�r.Ur hi��wa�s, �chools� ' end p1z►y$:c,��s�, e��o '�nx�c� is e��e limiteci �:o the act�s�.�. acreage af land 9.r� prfw�z�e r.:c�e��£p fa� reside��a�., z«��,�e$�iel, c,� industtcial bui�.d��geo . ' ��ti�a�es o�f �ut�re T,and u�p �r�' A�DZOxi�t� � ��is� d�.ei�#�on of �s�w�rgble 3�nr� i.nta �e�id�nt�.nl e�nd c�nmerci,al @ fpdustr�il cr�p�o�es�s„ t�c �bcs3n in tt�fs ri�ros� U�� fn£lu��ced by a r�uaabex� c�f faa�;r�rs, � '�"r�e s�eeciie� is� the �'iCDA R��,o�t w��re e:act�ens�v�ly utilfzedi . ' ho�aever, it w��1 bc: notesl th�t �:�e t�tal l��d as�umed fas �ommerciaZ �nd i�dcast��;% �se �s ��°ea��r in th�.s �epoxto S�ndies a.nd aepor�s suE+mitt�d by locut ea�mtenitie� were notecl s,cyd uCilized w�tere. appYi��bl�o '�h� use ' of. �oning rn�pv �a 3ncot�elusi,�r� as �:t ie o�ten po�.�ted aue thnt mo�e l�nd _ iu �onad com��rciaA and �n�ustr�al than i� likely �� be a�tua��y, develop�d, �c� the �i�i�� n�1y3�s tihe r�.ssfgnrnen9: ofc co�mexcia�l and fndustria3 land ' ' �16� ' ' �a� �Q v�•ria�s,: di��iets c3as samewhat arbi�rary sr�d is Uelieved to be on the h2gh and coazserv�t�ve side sr, as to prcvide facf,liCies ca4�fch a a � ad�qt�a�:e �or a2� wi�h so�e �a��ox of safetiy fac flowg of u�►ususl t6��Pk'j.�'.L!C;E o Thia i� gairtec� ouC in ardex to caurion agu�ns� �i�e &depta�ian �o . ' �u�e of �:he va�c��s �rni3,cate@ in �hi� xeport gar enp Pu�pase a+�6er than ta� es�i�a.a�e s�u�� o� 8� y�as done irr C�.i.s s�udy� �t�e cl�.asi�ica�io ts� each nf tche �3 suhd�strict�a �� ta Znnd use will �e fmt��d fa l,ppend�x He ' �� ase�uc�pCior�s �.� �o th� �atilis��iost of cwam�rci�l and �aadus��ial and �rc�ci�i�c�2fei s��r�reRl arens �'or th� yeare 1970. �980 �r�d 20a0� csn be detf�ra�s2 f�o�:r, ceh4 �esa�ge flo�r C�t+les i� Appendix Co � ' � ' ' ' ' - � ' 1 ' � - ' 1 i vg,+ 1 � , , 1 . , . ' . . Cf3APT�R VIII C :Y i '�' E it E .� F 0 R T' Yi E D E S I G ?7 d„ o .,,. ... ... � .. � _ � � .� .,. � _ � _ � � � � t7F SE WE RAGE PIt03ECTS ' Pr.elimfnar�r Layouts ��... ' �n �he prep$�d�f.t��n og the comprehen��.we p1�n Eox t�tE coplectian of sed�ge, va��ous ��sice3. w��ks h�d to be laid c�u�. in suff3c�.ent detail� to perroi� reasonn€�ly acGU�ttee �r,�apo�sfsons of pescfe�mflnce and cost, ' �t�o�ever �he d�si�n oE tt�� pra�jects wa� p�elim�nr�ry a�d approxisnate ard a*as dnne with�u� a��e�i� fl� £ie2sl surveys9 ooil borf.ngs a.�d a��tier s�ep� �sa�alZy ta�.e� 3►� �he de�eiled p�epm�at�on of �;�rkit�g plens a�d� spec�fi�8�3.0:9�0 ' E�s lacul s�4�er spst�r�s are developed ancT csx�:�nded, the boundascS.es� of ��ga�e. subdis��3cts w3EI undmub�ed�y chazzge, Z'h►�a rs ce�tain �snount ot: xetoca�ior� ��d r� sf�.ing of fa�ilitie� can be expected i� C�e futuxe wh��+ detsiied plans ar� prcpar�d, I ' f Th� detailed d��ign o� these �acili�i�s shou�.d alsn �nclude fuxCi�r exacnini�r��icn �n� var�o�ss p°.�p station h�ads �end capac��i�s� combined witih ' ' various f.c�res rr.ain �i.xe�� based on s�veral desi,�n pesrfods Co r�c�iev� Clie most eca��s�fc�l s�lu�iono �.rh of tidtese purap stat.lans wau�d inuulve Q study 3n itsel£ an�J �ins i.�en invest�gaCed onZy �ar Enough Lo obCein a ' r�asonabYy rQ��i�b1.e �sti�ne�e o.E cosC4 k�rther studier� s�ill b� requitred ica ensutte tha� �t�� mo�t �conom�cnl �combinA�io� �i� e�iect��o ' Y�cal Syetems not IncYuded � ' Th�: loral �e�res syra�ema nnd the cos�s Cheseof hay� not beer� incladed in ts-iis comprelt�z�g¢ve plan, It shouid be nc�+ted Chat the p��n o� S.a�otst ff�a�� ec�nomical otr £eaeible iot �he a�r�a as a mhale rday ' s�ot aecess�rfi� b� themost deatrabYe from ehe seendpoint �f ot�e �ingle mun•Lcip�lity, T.n �he pr��a5ation a� �his pLan the repo�rtE a�d plans of ��e Iac�.l eo�n�t�es ��:ve ttieen u�3liz�d ta �he ex�ent poss3bleb In some instane�s �t�ere may b� minar tonfl3c�s he�s,�aer� thfe xeport �nd ' �he deta3.Y�d �Lc�ns a� locaY ccmmunities, Ir�eo£rx As the 3n�emied �uz��nse o�' '�his r�porC is cox�c�rned auch �inar dfscrep�ncies�a�e of 13fi��Ic� �:FFect, A� �each t3.me as ctepE are tek�n to i�pl�m�ent Cb3s plan ' rlixough tha �L�psx�Ati9.nn o£ constr�xcfiion dra•�°�.ngs and speci£icat�on Ci�.ese lo�n1 p�obl��a� cgn be anra�.y�ed i� furrtx�r detailo 1 � . ' �t�a ' ' �.�. �'he ur' oae of t�if s st P F �adq �nd report �aaa tm p�epare a pla� fox� the collectio� o£ eeraage �a�►ich wc��d be suftable �� tt�e viewpoint fl� �he � , arQ� as s wiiole, �'htt� the e�it�earing dorre as a Fmrt �f this atudy fs ax�� at aub�t�ltute fr�r �� wer pia��niag C� be d�r� by th� engineexs�£or the indivSauai cer�uni��eeo Each c�u��eity rausr �a�nt�.tiu� t� s�ek out ' ec,RuCions £or t�ix i�edfate n�aede and ehould' �ur�e�d w�tis a pragr�m a� lan� r�e�ge plaeonl�eg a� w�ll, Tt►� c�mptel�nsiv� �Za� psemented i. thi� Ysp�a�� wfflt a�s�st tk�e c�aunit�r�s in tbis �.oaog �ss�ge p18n�ir�g� � by p�ovic�in� a ns�wask ef �ajor �a�il�ties th�C r�re joi�n�by us�d wi�h vther �cm�unitleso ' Des$�a� Periasi , � ' T'�.� fos�euaticn qf Ch� �a�apre6ensive �ewage t�orke Pinnn£ag Co¢�m�t ee �aas d�acribad i� �t�pr�r I'V of Chfs repareo At •��ee be��s��in�; o� �Ir,��e studles t�s c�ait�Cee establistusd tba� �he faci�.iefas c��rxiefng ��e � �oc�preh�a��tve glan et��3d. be pr�pa��d fos cond�tii.o�s e��lmate� �o easis� ' in tt�e yeaE' a000o A s��m of f�cfities was d�aigued �wa�in� capacit� �or the popul��ion e��i�cated £ox,tt� �rear 2fl00Q Iri d�c��,r o� tihe�fa�� th�et tt�� bo�deries r�f �he cex�ice ares are £•lxecl on s1I btic� �he nor�� sS�e, ' a �eco� se� of f�CiZ�t�e�s was de�3gr�ed i�avin� cap+acf�y �or th�e p�obable saturat�o�� Q�pula�i�n. a�thia� the serv��ie areao Tl�us a di��ct c�aspasisa�r �f xequia�d �fz� and �n ap�r+ox�te c�pr�rison of cost fos �I�a�se taa � �co�ditians is 8vsi2�bleq Zt sha�ld ba ee�ated �h�t papule��.on" e�timaties ' �CV� ehe yeax Z000 se�ae to be increa��ng �s time �sses a�vci it eppeers tt�a� sat�ratifln r�ay be t�ctc�d a� e� es the yeax� 2010 or 2020, ThaB wt�re. �,ncavity �suak sewei�s. �e�e se3ected, iti seeaaed �c�a�o�table ae�d p��sr ' �o ��o�cS,de f�r �he �p�o�rabl�e s�turati,on p�rp�al�tfan sather than ttu3 current es�taeate fox tl�e yea� 2000, Sc�ruage pusaging otat3as�s ee�d f�rce maina �r�re de��gned for a 2Q y�ar baais w�t� se��acenran�o oa� enl�rgementr ��lud�d � in the pian to p�ovide s�rvice untfl �h�: �►ear �oao, , qse of E�istfnr�Fnci29.tfes �he e�3.�tii�g sani�ary sewera�e, �acilf�ies o� the vmrioua comacunitiea ' ��v�e been utfl,ixed fa this pZan to ehe aaaximum ��cte�t poes9.bleo It. ha� l��n assumed that the ca}se�i�y �xi�tin� in t�se f�c��3t�.�s srnuRci b� �oise+tlp and ccmmonly used by �he vafi�ouc commu�ities es each has need, ' unt�l eucl� tia�e �� Che tacility bacomes ov�rload�d� w��n a replscsament or enlargeaent ts scheduled under th� ca�preher�sive plez�� Ta actua2 � practice, under th� us�aa� pres�nt �seehce3 a£ ope�aticm� �he commur�3t�r ' oziginally, buildin� �nrl ownf.ng the faci.Ii.ty will reserve capnci2y equa�i to iCs ultfc�a�e and maxicaum rieed and permi,C up�tream cac�unitiea �a uae anL� the exc�s� capacity overc ae�d abdwe this £uture neecl� ' �'� -1.9� - ! 1 . �I 1 ' - , Combined vso Separate Seca�,rs , The problem of co�birted sewere v�o san�tary seu�ers is a compiex crie and several chapters could be devoted to this subject alonea Sdnitary sewers are designed and constrtacted to carry sew�tge only, ' Combined sewere wexe designed and conetreicted to carry storm water e�s�, weLlo The sewage treatment plant and sanitary interceptor eystem cou'ld not rea�onably be provided with c�ps.city to hand�le peak rain�torma in� ' addition to the normal flow of sani�ary aewageo There�ose, during tio¢es , of rainfall it is necessa�}y to divert or by-pass a diluted mixture of� aewege and storm wa�er directly to the ri.ver, Althougb the percentage ' of tlta total annual sewage flaw, ao diverted� is very ss�a12 it must be recognized that thfs is n�ot a deairable situatioa, , Host of the sewer eystem in the City of Sto Paul wac constructed long before water pollution wss a serious coacern and was bui2t es a combined systemo Substantfal efforts �re being mnde by the City to provide separate storm and sanitary sewers ta replace Lhe combined ' systemo Tremendous costs ece involved fn these �eparation grojects �nd severe financing- problems have been ahd w�Zl continue to be epcounte��do Th+erefore this separati�n work car�not be �tccamplished ovesnight• b�ut will have to psogress graduall�y oves a iong aumber of ya�rso Thsas, wh�n ' consideri�g a long-range comprehensive plan it is reasonable and a�ce�sery to sa�wne tht�t combfned sewere will cont�Lnue to ba xeplaced with separaCe sanitary sewers, � 1 Certain eutiurban axeas which are presently se�ered through the CiCy of St, Paul use the combined trunk sewers of the City syseema �1hen� ' sar�itary trunk sewers are built Lo rep2ace �ttEUe exi�ting combined se rs; capacity will have to be provided for the sar+ita�y se�age €rom e�ese suburban areas or else ttte suburban areas wiZl have to prowide an ' indegendent connec�ion through Sto Paul to the Joint Interceptor SeWe o Detailed studies of th3s problem were not �ncluded in this reporti bnt have been m�de �separat�ly to some �xteat and nre eapected to continueo A great deal of ineest�gatiae� and design will be reyuired to determinej ' the besC solution and a realietfc estimate o£ costo However eince thia report does conta3n a "compreteensive" lonE range sewerage plan, �ttentfoa� should be directed to.the €act that these fuCure costs have not been ' included in this reporto In consideration of �hese combined sewer problems, an attempt , has been made to serve as many areas as practicable thraugh a sqstem of separate samitary trunk sewesso Of. the �i�ht majog sewerage districts described in Chapter V, four are planned to be served bq cocnpletely . C . separ.ate sanitary sewerso These are (1) L�ke Gea-�ais (2) White Bear (3J Bettle Creek, and (4) Mendotao The Riverview dietrict is presently 1 . served by a combfned system and the sewage from West, S�, Paul and Sto � Paul must pass through diversions and regulatvrso Hawever, a separaeion ' p2gn for this district has been wo�ked ouC prior �o and iadependently of this regart and e part of the requixed sepgra�f�n w�r�CS have been constructed with more scheduled for canstruc�2o� during I964, klest ' Sto Pau2 has particfpated in the cost of thene work�o The St, AnChany , -20� ' • . , Park sewer system �erves a small suburban area in Falcon Heights concictirr�g �ot Universfty of Mi�nesota and State Fairground property, A new system ' of atono sewers sin:ed at separation of storin and canitary sewage has� bee� , planned for the St, Mthony Park areno These ageacies hnee been cvoperatively involved i� the planning o� this new se�rer syeteao Thus, separate sanitary sewerage facilities ere pTenaed to be provided for ' six of the eight major sewerage disCsictso Ttie Trou� arook and Belt L3ne secaer system� p�er.ently convey ' s�wage froc� an extensive suhurban ereao There are no iaominent pla�ns for providing separate sewer syst�ms �o xeplace the exi.cting facilities, In the Selt Line district, n �ew ennitary trunk sewer ic requised to �be ' built in the sapae .location as the existing combined trunk �ewero Therefore sev,eral areas having sanitary sewmX collection sy�tem� tributary to the eYisting Belt Lfne sewer have be�n plaaaed to outtet into the new saoitary , trunk sewer, Neverthelesa the aaajor sewerege diatxicts indicated on Figure No, 4 aa Troi�t �rook and Belt Line will coneinue to be served • by a combined sewer systemo . ' Extenr of ComQrehensive Platf ' A strict and literal iaterpretetion of the Ashbach BiII wouLd fndicate thet all sewer facilit�es neceseary with3�n the service area should be in�luded 3n the plan and e.stimate presented in this report , with the exception that facilitie� used esclusively by one cammuniCy neQd not be incZuded, This i�nterpretation presents some p�oblems, I�ar example, in undeveloped areas where no streets exist, end in areas �her� ' municipal boundaries eoastaaitly change, ft is nor prac2icat ta become involved in details of e future collection system, Thus it is not possihle to determine all of the sewers which �i�ht be jointly �sedo , Therefore the Comprehensive Sewage Woxks Plaaning Committee ea£�ablished the following c�i�erie for detera�iair�g whicb facflitiee should ba ' considered a pert of the comprehera�ive pl8n: ' �ri�eria For Deteriaing Which Proposed Facilitfes Should Be Included in the "Plc�n" � ' . Those proposed �acilttiea that convey sanitary sewsg� . ' mor¢ than one municipality quelifAed as followa: la That at least one outlet ir�to the jointly-used facility will be provided at th� boundary of each municipal.fty ' existin� as of January 1, 19G4� and said fecility will be part of the ��Plan�', ' 2o An outlet shal.� be provided at �he municipal boundary for eac separate and di8tinct dcainage basin area �ithin a �ninici�ali�y ' providing Chat area i� of• sufficient eize to warrant it, ' 3o Joint2y-used €acilit�ea may be designated and added to the "Plan�' in the future if service boundaries change, , d21� 1 ' The�•e c�citerin limit the plart to the mnjor network of �acilitie� used by more than one municipality, Joint faci3ities in local areas �i12 , have to be worked out as before by cooperation between the communities involved. Since these are local facfliti.es requiring s�all capacity their uni.ti cost is not great end there should be no g�ent difficulty � in accompliehing thiso . ' Sewarte Flaw Criteria As part of the five year studq presented in, the TKDA Report a set , of criteria were developed for calculating estimatES of futu�e sewqge flaw. These criteria �were Selected aft�r extensive investigation of �xisting and past records of sewage volumes and flows, �Section 21 of ' the TKDA Report documents the basis foi these flow �criteriao These sams criteria were adapted for use fn'preparation of this coanprehensive plen. T�ble No, 3 indicates the baeis of�estimated se�aage quantities, " ' TABLE N0. 3 ' • BASI$ OF ESTIMATED SEWAC� QUANTITIES � Type Year 1970 Year 1980 Year 2000 Satur�ntjon � � omeetic 6d ga1/capita 65 gal/capit,a 75 gal/capita 75 gal/c,apft ' per day � per day p�r day per day � omme�rcial & 2000 gal/acre 2000 gal/acre 2000 ga�./acre 2000 gsl�/acr � •Iadustrial per day per day per day per day I ' Infiltration 200 �aZlacre 20� gal/acre 200 gal/acre 200 gal/ac�e per day per day per day per day ( , � . I ' The cewage quanCiCiee indicatect aboVe are average annual rates of flow. Sewers.ge facilities imtst have hydraulfc capacity to accor�ndate geak rates of flow. 'I'he ratio of probable peak rate of flow to the ' average annual flow is called �he £low variation factor, Flow variation factors for various rate� of average annuaD. flow•were developed as a part of the TI�A Report and mre shown on Figure No. 5. These same values were accepCed for use in preparing this camprehensive plan, ' (Ine�lude Flow Variation Chart) ' Figure No. 5 ' . ' -22- ' � , Desi�n Standard.s , Fydraulic capacities of open channels were calculatecl by means of Manning's Formula; t�sing a coefficient of roughness of c� 0.013 for ' reinforced concrete or vitrifie¢ clay pipe. Nydraulic capacities of force mains were calculaCed by meens of Hnzen and tiilliam's formula using a coe£ficient of roughness of 140 for ' cohcrete lined steei cylia�der pipe and 100 for cast iron pipe. Force� mai'ns were designed for minimum velocities of 2 feet per aecond. � Inverted siphone were designed with at least two �barrels, the smailer barrel designed to maintain minimum velocities at mic�imum flow �nd the combfnation of two ox more pipes to 6andle maximum flows. � As indicated rarlier in thie report, the verious facilities were re�t designed in detail except as necessary to obtain reasona�ly reliab�Ie estfmates of cost. Where que'stfons arose concerning general , &tandard,s of design or construction, the ASCE Manual of Practice Y�o. 37, Desiqn and Constxuction of Sanitary and Storm Sewers was used as a reference. � ' ' , ' ' ' � . ' , , ' -23- ' . I .. 1 ' , ' CHAPTER IX B A S I S Q F E S T I M A T I N G C 0 S T S ' General ' As stated in Chapter VIIT, estfmated construction cosCs are based upon prelimfnary layouts of the proposed sewerage facilities. Ther�fore, ' the costs have been est�mated foresch facility by comparison with know� costs of previously �onstructed faciliti,es similar iri size and capacityo ' Cost Trends . ' The general trend of construction costs has been' �teadily increasing for m�ny years. One .of the most widely recognized indices applicable to cost trends for sewerage facilities is the Enginee�ing , �News-Record Construction Cost Index. A record of this index for previous years indfcates that construction costs have generally been increasing at the rate of about 5 per cent per year. In 1959 when the TKDA Report , was prepared, thi� index was about 800, The present level is about 915�' and for the estimates in this report an ENR Construction Cost Index of 925 has been assumed. � ' Unit Cost Data ' Section 26 of the TKDA Report and the Appendix Volwne to tbat report present a very thorough discussion and voluminous data on , construction and operating costs of variaus sewerage facilities. This data was collected f�ro� many sources, adjusted to an ENR Construction Cost Index of 800, and campiled and plotted in the form of charts indicating , unit costs for various facilities. No attempt has been made to duplicate this effort. The charts presented in the TKDA Report have been utilized to estimate the cost of facilitie� proposed in this comprehensive plan. As explained above, the costs obtained by use of these charts were ' adjusted upward from the ENR Index of 800 to an ENR Index of 935. ' Miscellaneous Costs ' The estimates of total construction co�t indicated in this report inc2ude appropriate engineering and contingencies allowances eupressed as I e percentage of the construction cost. No allowance has been made for legal costs, acquisition of land or easements, or interest during constructiop -24- ' ' � �1'�APTE R X ' DEVELOPMENT OF THE COMPREHENS �IVE � � � � � � � � � � � � � ` � �. T � � � w� � � � �. � � � � , �SE WE R �1GE PLAN � General ' In previous sections of this report the basic factars influencing the development of sewerage plans �ave been presented and discussed. Theee factors ieclt�ded (1) basic p�anning autbority and Zegal responsi;bility of this report (2) boundaries �f study aree and detetminntion of the f serviee area (3) exfsting faciiities within the servic�.$rea (4) estimates ' of future gopulation and laAd use within the seavice a�rea and (5) bastc criteria for planning of sewerage facilftieso I ' This study is limited to planning the sewege collection system for those areas likely to be served thraugh the City of Saint Paulo Therefore , the treetment and dispvsal of sewage �t various locations accordf�ng to varying standards, and considerati�ri t�f such standards, was not requized to be a pert of this study. In the plan presented herein, ell s�wage � is conveyed to the Minneapolis-St. Paul Sanitary District treatment plant ' at Pigs Eye Lake, The provision of additioriel capacity in this ex3stiog treatment plant to accommodate the flows from this service area will be included and discussed ia the study and report ot the Sanitarq District, ' � Calculation of Sewa�te Flows ' Estimates of future sewa e flow nre necessa noC onl �o determine . g � Y the size and capacity required for each fecility but also to determine� ' the adequacy of existing works, Sewage flows for each facility were calculated using the population and land use estimates shvwn in Appendix $, The cizes selected for all gravitq sewers were based on the probab3e ' satur�ttion populations for reasons previously discussed, Sizes and capacittes required for the estimated year 2000 flow were also calcula ed for purpoee of compar�son. ' In order to determine the approximate date on which existing facilities might become overloaded, and in ordez that pump stations and force mains could be designed in stages ot steps, estimated sewage ' flows were calculated for the years 1970 and 1980, These calculation represent the largest sewage flow that could occur based on 1970 and 1 80 population estfmates, end were prepared prior to the schedule of construc�fono ' ' -25- i ' These 1970 and 1980 sewage flow estimates were uceEul in establishing a schedule of constrnction however, �ertain minor di�crepencies will be noted between the echedule and th� glow estimates. Fox example, the� 1970 , sewage flow calculatione indicate a sewered population of 100 persons in Gem Lake. Lt+ter on when attempting to establish a �ealistic schedule of construction it was estimated that the facility serving Gem Ldke would , not be constructed until fiter 1980e The two sections would appear t� be in con£lict. Nowever further consideration will reveal that there are some areas slong the egst side oF Gem Lake that have need of sewer service ' right now, If these nreas are to be served very soon theh Gem Lake will either have to construct a central sewer sy�tem much sooner than indicated by the enclosed schedule or else build a partial sys�seuu discharging into Faci�lity No�, A-143. A third possibil�ty is ehat a�t agreement or conCract � might be worked out with one of the adjacent communitiec if such community Y►ad facilities which cou�d pr�vide for Chfs small �rea. Thus the ariginal allowance of some flow ia the year 1970 mey be a reasonable assumptiOne ' The above il,luetratfon usin� a specitic communitq is mentioned in this report not because it is a particularly important or unique prob'rem ' but rather to illnstrate several facCs concerning this study. These are listed as follows: (1) It has been az'sumed that lacal communitie� ehould retain som`e ' degree of autbority and responsibility for studyfng and selectirig �lternaCe solutions to sewer problems affecting emall local arease (2) To involve this study in the sewer details of each small tr��t , of land and local area would not be in keeping wi�h its f intended purpo�e nor would it add to its clarity and usefulnlss. ' (3) The design of major sewerage facilities must be based on conditions estimated to exist many years in the future. Because these design . conditions are iaexact, ample allowence mast be made for the ' inevitgble changes in service boundaries, concentration of populntion, land use and schedules of construction. ' (4) Thus a certain acnount of latitude is available for changes in sewerage district bounderies, schedules of construction, and�other items as local communities study tbeir areas in additioaal detail. No attempt has been made in this study to anticipate or resolve , a12 such discrepencies for the mere sake of technical exactnesse Sewage flow calculatior�s foY the qears 197b, 1980, 2000 and problble ' saturation conditions are shown in Appendfx C. I As described in Chapter V of this report the service area is divided ' into eight major sewerage districts. These districts are shown on Figure No. 4„ This chapter will present a brief description of the facilities required for each of these districts. t • ' -26- ' ' ' St. Anthony Park District ' The suburban area served through the Ste Anthony Park system is confined to a protion of Falcon Heights containing Univercity of ' Minnesota and Minnesota Stdte Fairground�s property, At the present time 8 storm sewer program i� beiag planned for this area which will uitimately cause the existing combined system to be replaced with separate cewere. These two State agencies have been cooperativel�r': iavolved in � � planning this stor�a sewer program. This progrem has �dvanced nearly to the etage of outlet coristruction and therefore this dfstrfct is exciuded from further consideration in this report. ' Riverview District ' The suburban erea served throu h the Riverview District tonsists of 8 West St. Paul and a smaYl area of 40 acres in N,endota Heights. �As ' stated in Chapter VIII a program is under way to provide storm sewers in •th�s area which will permit the canbined sewer system to� ultimatelq• be a sanitary only system, As a part of this program, f�nancing ' agreements have beea made which provide West St. Peul with sanitary sewer outlets through St, Paul. Therefore no facilities for this district are �ontemplated under this comprehensive plan. ' Trout Brook District 1 The Trout Brook Sewer System hae the most extensive suburban area of any ef the combined sewer� in St. Paul. Thie district �acludes • ' Roseville and parts of Arden Hills, Fa2con fleights, St. Anthony, Shoreview and Maplewood. Most of the area within this district, as sho n on Figure No, 4, is presently served or equipped with � basic skeleton � ' system designed to handle the area. The excpetion to this is AH-1, a siwerege subdis�rict in Arden Hills directty south of the T'win Cities Arsenalo The jointly used sewerc within the V�lla ge of Roseville have been analyzed and it fs estimated that there is sufficient capacity existing in Rosev�lle ' to accarunodnte this presently unsewered area end it is asse�med that ehe aren will be served in that manner. No analysis has been made of the Arden Hills eewer system to determine what expense is involved in Arden ' Nills itself to convey this sewege to the Rocevill system, nor has any attempt been anade to compare the cost of this scheme wfth possible alte�ate schemes of disposal through Minneapolis and the North Suburban Sanitary ' District. Arden �;ills is the only community involved in these costs and therefore this is a local decision beyond the scope of this report, I This study has been limited to those sewers which convey sewage fran 1 more than one community. Therefore in thie Trout Brook district the capacity of each sewer in Roseville and St. Paul which conveys sewage from more tban one community hes been compared with the sewage flows , estimated for probable saturation cond�tion�s. These calculations are shown in Appendix C. The existing capacities appear to be generally -27- ' ' adequate,with one exc�ptioa, There is a ca}�acitq deficiency in the s�nitary interceptor �ewer connecting the Trout Brook combined sewer to the Minineapolis-St. Peul Joint Interceptor. The reqLe€red en'largem�nt of this ' eenitary interceptor fs shown on Figure No. 6 at�d hes been d�eigaated �ac Facflity No. �-100 and is fncluded in this Comprehensiee Plnn. As etated in Chapter YIII pians and cost est3mates for any other sanitary sewer ` ' facflit9.es whfch �ay be needed to be built through St. Paul, to replace the existing combtned trunk sewer� ueed by these subvrban areas have aat beett inc.Iuded i� this report, � Belt Line District � ' As shown on Figur.e No. 4 in Chapter V, the Belt Line D�etrict �s �lfmited to the ot�e suburban area in Nlaple.woal ehoum as HA-4. At the' ' presenfi ,time other suburban areas including tha� part o£ Maplewuad ,shown a�s MA-2, aYl of Narth Sai�►� Psul, and the White Bear Lake tempoxary force mein are a1�4 connect�d to the �xisting Belt Line raembined •sewer sy�stem, Under this cornprehensive plan thes� latter areas are ' �provid�d capacitq in the new sanitary tt�unk sewe�C gnd are s�own it� the� White Bear District. Hawever in this etudy and report it is assumed tha� the area shown as MA•4 will continue �o use the euisting £acilities and ' i�a thus ehowa as a s�parate Selt Lfne District, At stach time as constructian is undertnken irr Ste Peul to pravide a separate sanit�ry � sewer s7�stem, capacitq fo� these Maplewood sewer connections would have ' to be provided in the St, Paat systemo � � Th+e sanitarq interceptor eewer cormecting the e$isting Belt Line ' canbieecl eewer and the Mianeapolis • St, Paul Joiret Interceptor does noC have adequate caparfty to convey the senitary se�ag� flow plus the necessary storm water allotmet�t from the cambined sewer a�cee in St. Pa 1. Since it is planned ti�at the new saniCary trunk sewe� serving the Lake � ' Gervaf6-White Bcar Districts wiLl follow this same alignment, an al�.owence has been made in the facility designated A-99 to correct this deficiency. The calculations are shown in Appendix Ce ' 1 . Lake Gervais DisCrict ' The sewera e subdistricts com risin the Lake Gervafc Sewera e � P � S district were descYibed in Chapter V and shown on Figure Noo �►. This ' district consists of Little Canada, Gem Lake, North Oaks and �rt�af Vadnais Heights, White Bear Township, Shoreview and Whfte Seas Lake. ?here are no existing sewerag� facflities in t'�is ar�a. The facilitie� 1 proposed for this area are indica�ed on Figure No. 6. Estimated ser�e�� flow calculations for ttte qears 1970, 1980, and 2000 as- well as �probable saturation canditions are s6own in Appendi�r C� _..A-descriptian of these ' f�cilit3es 8nd their estfmated cost is shown an Table Ptoo �+ to be found at the ertd of this chaptere 1 ' -28- . • ' 1 White Bear District ' The sewerage subdistricts in the White Benr aewerage diatrfct were ' also described in Chapter V and shown on Figure No, 4o The district consists of Birchwood, Dellwood, Lincoln Township, t�4ahtanedi, North St. Paul� Pine Springe, Willernie, and parts of �rant Township. Maplewood, Northdale, Vadnais Heighte, White Bear Township, City of White Hee�' , Lake, end a small part of Saia�t Paul called eubdietrict S-1. A consider�ble portion of this districC is presently sewered and served throngh the Saint PAUI Belt Line cambined sewer. The presently ' sewered areas are shown on Figure No. 2 in Chapter III. As a part of this comprehensive plan facilities adequaee to serve ' this area untiL the yeer 2A00 or later are proposed as shown on Figure Aio, 6, Faci.lfCies No. a-99. A-100, A-101 and A�*�102 are used _ in common with the Lake Gervais district. Facility No. A-:99 is also used in common with MA-4 and the City of Saint Paul area tributary �o ' the Belt Line Sewer. Ae described in other chapters of th is report, certain areas presently on the Belt Line combined sewer have beea transfersed to Facility Noa A-100, These ereas are MA-2, NS-1, S-1 and� ' those areas presently served by the tempornry White Bear force main. Celculations of sewege flows estimated for the years t970, 1980, 20�A and probable sa�uration canditions are �hawp in Apgendix Ca . A description of these proposed facilit�es and Cheir estimated coat , is shown on TAble No, 4 at the end of this chapt��. ' Battle Creek District ' As shown an Ftgure Noe 4 in Chapter •V the Bettte Creek sewerage d�strict consists of aa area directly east of St. Paul and 3ncludes Oakdale Township and Land£aIl plus garts of Northdale, EASt Oakdale and Woodbury Townships, part of Maplewood and a part oE the City of St. L'aul�. ' The existing Battle Creek sewer system provides sec�er service for a considerable part of the d3s�rict, however it does not have capacfty for the entire area. Facil�ties No. B-100 through 8-110 as shown on Figure � , No. 6 ase required in addition to existing �acflities in order to provide sewer service to those parCs of Northdale, Oakdale, Landfalt, East 08kdale and Waodbury Tocroship which ere within this sewerage dist�ic�. , The existing BAttle Creek siphon does not have capacity to handle the flow from the �ntire �erea. Therefore pump Station No. 9 has been p}.anned to discharge through a longer force main dfrectly to the Jaint Intercep�or rather than through the siphon as originally planned by the City of , St. Peul when the siphon was built for the City°s own needs. Facilities C-110 through C-129 serve an area which is presently unsewered in St. Paul, Maplewood and Woodbury. As statec3 above, by ' discharging the flow from this area directly to the Joint Interceptor I rether than to Che siphon, the capacity in the siphon originally planned for this St. Paul area can be used to serve the areas in Washington ' County� tributary to Facility 8-100, C�lculations for estimated sewage flows can be found in Appendix C. A 13st of the proposed facilities and Itheir estimated cost is shown in Table No. 4. ' I -29- ' , Mendota Dietsict ' The Mendote Dis�rict consistt of the Vil2age of Mendotca, I.ilydale and most of the ViZlage of Mendota Heights. The districts shor�m �an , Figure No. 4 se,MH•1 and MH•2 are presently se�re�ed through tfie St, PauZ Rfver'view sewer eqetem. MH-I is trib�tarq bq gravity end would irema�n an this cyatem. M8-a ts .pum�a into tbe Riverview system and whea a gravit�r outlet could be made 'evetilnble to the south this pump station � wbuld be retired. � 0� the several sewage disgosal slCernates which have been considered ' by the Village of Mendota HeighCs oa a �acai planning baeis, the siphon connection across khe Mississippi River ta the Sto Panl Fle.s� Set►entb � Street sanitary interceptor is the onlq one which involves service ' through the City of St. Paul. Therefore this alternate is the only one whi�h qualifies for inclusion in Chis atudy and report. It has been � investigated �nd found to be a feasible pian which could be ' implemented in time tb meet the expected demar�ds for service. It should not he implied that thfs solution i� endorsed as the most economical, � moet desireable and most feasible from an engineering .standpoint since these other alternates have not been i�vestigated as a par� of this ' study. Flow calculations are shoc,rn in Appendix C. The £acilities D-100 and D-LO1 are described fn Table No. 4 together wit� their estim8t�d cost. ' , . 1 ' ' , , . ' ' -30- 1 ' ' TABLE N0. 4 , PROPOS�D SEi�IERAGE FACILITIES ' ' DESCRIPTION AND ESTIMAZED CONSTRUCTIOH COST5 Facit�ty Capacity �escriptfon Constivction ' Htimber Provided Cost a, dollars • m.g.d. . � ' A-99 97.0 2,974 fC. of 60'� tunnel � 60" , 48" & 33" � - R.C.P. depth varies 1U-24 feet. . . . . o . 236,500 A-100 59e1 1�►,667 £t. of 6��, 42" tunnei & 66", 60�� . � ' 42", 33" R.C.P. depth varies 7-23 ft. . , . 1,360,000 A-I01 54.2 2,687 ft. of 60", 36" RaC.P., depth . �. ' • varies 8-1S £eet. . . . . . . . . . . . . . 129,800 A-IO2 48.4 7,127 ft. of 60" R.C.P. depth varies ' � ' 8-22 feet . o . . . . . v . . . . . . . . . 474�300 � 4►-1i0 --- 20,90p ft. of 24�' force main, depth 6 ft. . 522,000 , A-1Z1 30.0 13,450 ft, of 48" R.C.P. depth varie� I 14-38 feet. e . . . . e . . . . . . . . . . 874,000 ' A-112 30.0 , 8,050 fk. of k2" R.C.P., depth varies � 14-26 feet. . . . . . , . . . . e . . . . . 507.,000 ' A-115 7.5 7,150 £t, of 27" R.C.P., depth�varies 18-2b ft. 2,700 f�. of 16'� fo.rce main, depth 6 f�. . . . . . . . . . . . . . . . . 396,000 ' A-116 �5.6 1,300 ft. of 24�� R.C.P., deptl� varies I 8-26 fee t . . . . . . . . . . . . . . . . . 6U,100 A-127 3.2 4,350 fC. of 21�� R.C.P., depth varies � ' 1d-26 feet . . . . . . . . . . . . . . . e 147� 700 . ' A-118 3.2 1,400 ft. of 21" R.C.P., depth varies . 10-22 feet . . . . . . . . . . . . . . . . 4G,200 ' A-120 15.4 6,450 ft. of 33" R.C.P. , depth varies ��i-L� feet . . . . . . . . . . . . . . . . . 272,000 A-121 ' 3.0 2,800 ft. of 18" R.C.P., depth varies ' O�1V �t� o • • • • • o • • p • • • • • • e v� `QO A-130 11.5 5,475 ft. of 27" & 24�° R.C.P., depth I' varies LO-18 feet . . . . . �. . . . . . a . i78,500 '� -31- I ' ' � , , TABLF N0. 4 (CONT) , ' PROPt3SED SEWERA�E FACILITYFS � DESCRIPTION AsID ESTIMATED CONSTRUCTION COSTS • ' . . Facility Capacity Description Constructior � Number Provided Cost �8, dollars m.g.d. � � A�131 --- 6,320 ft. o� 8�' force c�ain, to be replaced with 18�� force main when . additional capacfty ie required, , depth 6 ft . . . . . . . . . . . . . . . . 218,000 A-132 7.0 3,669 ft, of 24�� & 21" R,C.P., depth � ' varies 8-16 ft . . . . . . . . . e . . . . 94,200 A-140 2b.8 811 ft. of 48" R.C.P., depth varies 8-12 fC. � 26.8 205 fC. of 3 barrel inverted siphon. . . . 98,600 ' A-141 25.4 7,977 ft. o£ 48'� R.C.P., depth varies i 8-18 ft. . . . . . . . . . . . . . . . . . 437,000 ' A-142 25.4 2,135 ft. of 48" R.C.P. , depth varies � 7-30 ft. . . . . . . . . . . o . . . . o . I46,700 ' A-lk3 --� 13,000 ft. of 16�' force main to sdpplement exist#.ng 12�� farc� main when edditional capacity is requtred . . . . . . . . . a e 288,000 ' A-150 15.3 �3,175 ft. of 33", 30", 24�� R.C.P., depth varies 7-22 ft. to supplement euistittg ' " 24" sewer. . . . . . . . . . . . . . . . . 448,000 A-151 --- 11,300 ft. bf 14�� force maia� to suppiement � existing 12" force main. Addition�l 14�� force main to be add�d later when additional capacity ie requfred, dept� 6 f t. . . . . . . . . . . . . . . . . . . 422-,000 ' A-152 11.9 1,150 ft. of 30" R.C.P., depth varies 11-14 ft . . . . . . . . . . . . . . . . . 40.,100 ' A-153 4.1 1.750 ft. of 15" R.C.P. , ave. depth 12 ft. 40�200 , A-1S4 4.1 2,600 ft. of 15" R.C.P. , depth varies , 11-15 feet . . . . . . . . . . . . . o . . 5�4,100 A-15S 8.4 9,400 ft. of 30" & 27�' R.C.P., depth ' varies 6-30 £t. 500 ft. of 6" £orce � main, to be repleced when additional cepacity fs required with a 10" force � main, deptb 6 feet . . . , . . . . . . . . 363,5►�� -32- ' ' TABI.� NO 4 (CONT) ' PROPOSED SEFIERA�E FACILI?IF:S � DESCRIPTION AND ESTIMATEp COKSTRUCTiON COST5 � Facility Capacity Description ConstrucCion ' Number Provided Cost 8, dollars m.g.d. � � A-15b 8.0 2.825 ft. of 24�� R.C.P. , depth vnries � , . 7-30 feet. . . . . . . . . . . . . . . . . 6,000 ' AT157 5.6 3,323 ft. of 15" R.C.P., depth varies 14-34 £eet . . . . . . . . . . . . . . . . 157,200 A-160 -•- • 9,500 ft. of I6�' force mAin, depCh 6 ft. . 211,000 ' A-161 2.5 5,1.Z5 ft. of 15", 12" R.C.P., depth varies �-2b Eeet. . . . . . . . . . . . . . . . . 1 0,000 ' P.S. �1 1.25 Temporary ptemp station to be built in � second stage . . . e . . . . . . . . . . . S5,800 ' =� . . 3.A4 Permanent pump station to be built in the thisd stage when the exp�cted flow� bec�e such that additional capacity is required. 126.500 ' P.S. #2 5.85 Permanent pump statfon to be built in , secand stage . . . . . . . . . . . . . . . 187,200 1 P.S. �3 1.E0 Temposary pump station to be built in � second stage . . . . . . . . . . . . . . . 5,9,40Q 3.84 Pesmanent pump station to be built in � ' third seage. . . . . . . . . . . . . . . . 143,800 � P.S. #4 7.45 Pernianent pump station �o be install�d to replace existfng pump station in �econd sCege, when expected flow will exceed � existing stations' capacity. . . . . . . . 227,000 P.S. #5 4.28 Temporary pump station to be built in � second etuge.. . . . . . . . . . . . . . . 120,400 ' 6.41 Permanei�t pump statfon to be inetalled in � third stage . . . . . . . . . . . . . . . 200,000 ' P.S. �6 5.38 .Temporary pump station to be built in � £iret stage . . . . . . . . . . . . . . . 13 ,5�0 , 9,76 Permanent pump staeion to be installed in third stage . . . . . . . . . . . . . . . 257,000 ' -33- , . I � TABLE N0. 4 (CONT) . ' , PROPOSED SEWERAGE FACILITIES DESCRIPTION AND ESTIMATED CONSTRiJCTION COSTS ' - + . Facility Cepacfty Description Construction Number Provided Cost a, dollars ' m,g,d, � ' PoS, �7 20,86 Fermanent pump station Co be built in first stage with pumps installed to handle present flows, Pump capacities to be increased later as � required , , , , o , , , , , , , , , , , , 49�2,000 Subtotal � ��A Series" Fecilities 10,5�3,5�0 ' ' � ' B-100 14,8 7.165 ft, of 30'�, 27", 21" R,C,P„ depth varies 7-26 ft, to eupplement existiag � sewer which has capacfty of 7.9 m,g,do e o 257e5U0 ' B-l0I 1604 6,340 ft, uf 33", 30n, 27" R.C,P„ depth varies 7-2b ft , , a , , , , , , , o , , „ 21 ,d00 , B-ld2 7ob 12,770 fto of 3U", 24��, 21�', 18��, R.C,Pe � depth variea 7-30 ft o , . . . . . . o 0 0 378,,�00 B-10� --- 1,920 fto of 12" farc� main, depth 6 ft. o , 2�,300 , B-1Q� �� So6 1,720 ft, of 27 R,C,Po, �ve, depth 11 £t. 5�*900 ' B-105 I1,1 2,835 ft, of 30�' R,CoP., depth varies � 10-18 £t , . , � , , , ; , . , , , Q , , 0 106,000 ' B-110 207 4,600 ft, of 18", 12��, 10" R,C,Pa, depCh , varies 7-IQ ft . , , , , . Q. , , , , , , 0 8 ;300 ' P.Se �10 Yo75 Temporary pump sCation Co b� built ih second stage . o o , „ o o , . , , , . , . 71, 100 ' 3,42 Permanent pump station to be installed in the thitd stage , � , o . o . , , , , , 133,000 � 1 Subtata� - ��B Seriea" Fac�lities 1,330�200 E � -34- ' , ' TABLE N0. 4 (CONT ' PROPOSED S�WERA(� FACILITIES DESCRIPTION AND ESTIHATED CONST1tUCTION COSTS 1 � F'acility Capacity Description Const�ruct3on Number Provided Cost ,B, dcllars ' m.g.d. • 1 C-100 •-- 7,000 ft. of 24�� force main, depth 6 ft. . 2I58,000 ' C-1 IO IO 6 4 4 t +� . ,5 7 f . oF 30 R.C,Y., depth varies I ' 10-�9 £t . . . . o . . , o . . o o . , a , 168,800 C-115 8,4 5,085 ft. of 30", 24��, 18'� R.C.Fo, depth � varies G-12 ft , , , , , , , , , , , , , , 1�19,400 ' C-116 6.5 1,600 ft. of 18" R,C.Po , depth varies � 1�•12 Lt s • • e o 0 0 • • • o e • o o • e 37�3�� ' C-117 4.9 5,705 ft. of 27", 24��, I8�' R,C,Po, depth � varies 10-2I ft. , , , , , o , , , , . , , 170,OQQ P.S, �9 7,47 Tempornry pump station to be built in � ' s�C011d St�g� o 0 0 0 0 0 0 0 0 0 0 0 • o 0 163�2�0 11,79 Permanent gump station to be installed in l ' the third stageo 0 0 0 . , o , , , . . , a 294,000 � ' Subtotal � ��C $eries" Facilities 1,210,700 � ' D-100 • 8,5 6,�Q0 ft. of 3 barrel inverted sf hon, . . ! 1�2 000 P � � � ' D-101 1.1 5,200 �t. of 12�' R.CoP, . eve. depth 8 ft . 1�3,200 Subtotal - '�D Series'� Facilities 1,2i5,200 ' 1 ' E-100 52.0 562 fto of Glacial Drift turinel to augment existin� fnterceptor sewer , a „ � -„�o.,�, : o;. i1,S00 ' Subtotal - "E Series" Facilities ��91,500 � ' GEtA1VD TOTAL - ALL FACILITIES • ' 14,43�1,100 BCon�truction costs fnclu�e ' engineering and contin�ency costs. -35- i . . , .. . , � _ . . . , � - � � � � ; ; � � � � � � � � � '� � o �� ' .�„� ,�,,,. — � � , � ' � ► � � 1 � � � � ' � I � � I � I � � — a I ' , 1 � ,. I ' . . I I ' ' 1 - ' CHAPTER XI ' S T A G E C 0 N S T R U C T I 0 N 0 F S E W E R A G E F A C I L I T I E S � ' Genera� tIn the preceding chapterc of this report there ie presentad a plen e�td cost estimete for sewe�age fa�flities required .for the area likely� to be sexvad through the City of St. Paule In keeping witA the stated ' purpose oF thie repozt, thfs chagter will present a proposed schedule of cpnatruction, r ' Bestc Assumptions � , 7l'he schednLe of mnstruction proposed herein is based upon the £ollowing assumptfons: , 1. That in accordance with the provisiorts of. the "Ashbach Law" a finatrce plan will be prepered and implemented together with this engineering plan. Therefor�, funds will be avai2Pble Co construct ' facflities of the desired capacity at. the ti,me they �e ne�ded. The need for intera►ediate solutians, temporary connections and �topgap measures will thus be kept to a minimum. ' � 2. Where possible, facilities will be provided as local ereas - within the servire area bave need, and witl not necessarily he deferzed �nntil a majority of those uli�imately eerved by the ' particular facility are desirous of service. 3o In the� future, for new development within the serv3ce areA, ' dependence upon septic tanks and individual disposal sys�eos will be minimizedo , Stas�ec of Construction , The schedule of constYuction presented in thfs seport consists of separating the proposed facilities into three separate steges of con�tructfon, Stage I represents those facili�ies to ba constructed ' before 1970Q Stage II r�epresents those facilities to be consttucted • after 197n and before 1980, Stage III includes those facilities to be built after 1980 and before the year 2000, ' -36- I ' ' The sta es have been se r g pa ated in this manner in order that the ends of the steges confot�c to decennial census qears. 8stimated populatio� ' fig�res relate not only ta sewage flow and thus the timing reqnired for cfln.etruction of facilities, but elso relate to the number of users available to f3nancQ this construction. It w311 be noted thet Stage III ' covera a period of twenty qeass, This etage, being the most remote, ie the one whexe timing ie most dif£icult to predict. AcCual cost of } con'structi.on during Stege iII could vary greatly from the estimates I �Bhown �in this report due to infla�ionary or defletionary eFfects. Far , these reasflns it would not appear justi£isble to refine Stage III int+� further detsil, I I ' Ffgure No. 7 ah�ws tbe propased facilitiec eeparated into the �hr�e stages of construction, Table Noo 5 lists the facilities and tbe cost�s for each constrt�ction stage. � ' Finallq, 3cC should 6e nated thet the proper schedt�ling of this construction is dependent upoa� future conditions of developmene and ' growth wtiich are very difficult if not i�npossible ta predict. Change�� in rate or pattern of devel,ope�ent or provision of temporary connections will certainly have some effect upon the construction pinn and the totai esCimated cost. Hawever, such changes could completely alter the ' schedule of construction. For tMis reason ft is e�ecestary that the ' schedt�le of construction be reviewed and adjueted aC frequent ineervals, ' . . 1 , ' ' ' ' ' 1 ' -37- , ' ' TABLE PI 0. 5 ' STAGE CONSTRUCTION QF S'EWERAGE FACILITIES (in dollars) � ' - FACILITY STAC� I STAGE II 5TAGE ITI ' ?�IUMBER Present to 1970 1970 to 1980 After 1980 A-99 . . . . . . 236,500 , A-1(30 . . . . o , 1,360,o0A A-lOt . , . , . ° 124,800 . A-102 . . . . . . 474,30U ' A-110 , . . . . . 522,n00 P.S. #7 0 . . . . 492,�0t1 A-111 . . . . . . 874,000 ' A-112 . . o . . , 507,000 A-�15 . . . . . . . . . . o . . . . . . 39b,OOQ PoS. �5 . . . . . . . . . . o . . . . . . 1.20,40� . , . . . 200,000 A-116 . . . a , . . . , . . . . . . o . . 60,100 ' A-117 . . . . . . . . . . . . o o . . . : 147,700 . A-118 0 . . . . . . . . . . . . . . . . 46,200 A-120 . . , . . . . �72,OOp ' A-121 . : . • . . . . . . . . . . . . . . . . . o . . o . . 61,200 A-I30 . . . 178,500 A-1.31 . . . . . . . 58,500 , . . . . . . . . . . . o . . e 159,50� ' P.S. #6 . . . . . . 134,500 � . . , . . . , . . a . . . . . 257,000 A-140 . . . . . . . . . . . . . . . . . 98,600 A-14I . . . . . . . . . . . . . . . . . . 437,000 A-i42 . . . . . . . . . . . . . . . . . . 246,70Q ' t A-143 . . . . . . . . . . . : . : . . . . 288,000 P.S, �4 . . . . . . . . . . . . . , . 227,000 A-150 . . , . . . . . . . . o . . o . . . . . . . . . . a . 44B,000 , A-151 . . : : . . : . : . . : . : . . . . 211,000 . . , . , 211,Q00 P.S. #2 . . . . . . . . . . . 187,20� A-152 . . . . . o . . . . . . . . . . . . . . . . . . . . . 40,100 , A=Z53 . . . . . . . . . . . . . . . . . . . . : : . : . . . 40,2U0 A-154 � . . . . . . . . . . . . . . . . . . . . . . . 64,100 A155 . . . . . . . . . . . . . . . . . . 3,500 . . . . . 360,0�0 P.S. �1 . . . . . . . . . . . . . . . . . 55,800 . . . . . 126,Sn� , A-156 . a : : . . . . : � . . . . : . : o o . . . : . e : : 96,000 ' A-157 . . . , . . . . . . . . e . . . . . 157,200 A-16fl . . . . . . . . . . . . o o . . . . 211,00� ' P�S. �3 . . . : . . . . . . . . . � . . . 69,40� . . . : : 143,800 A-161 . . . . . . . . . . . . . . . . . 140,000 A132 . . . . . . . . . . . . . . . . . . . . . . . . . . . 94,200 B-100 . . . . . . . . . . . . . . . . . . 257,500 , 8-101 . . . . . . . �15,000 B-105 . e . . . . . 106,000 B-102 . . , . . o . . . . . . . . . . . . 378,500 ' B-103 0 . . . . . . . . . . . . . . o . . 29,300 ' -38-, ' , ' TABLE N0. 5 iCONT) ' STAGE CONSTRUGTION QF SEWERAGE FACILITIES (in dollarc) ' FACILITY STAGE I STAGE II STAGE III� NUMT R Present to 1970 1970 to 1980 Afte_ r 1980 ' P.S. �10 . . . . . . . . . . . . . . . . 71,100 . . , . o Z33,000 $-104. . . . . . . . . . . . . . . . . . 52,500 ' B-110. . . . . . . : . . . : . . . . . . 87,300 C-100. . . . . . . . . . o . . . . . 258,000 P.S. �9. . . . . . . . . . . . . . . . . I63,200 . . . . . 294,000 C-110. e . o . . o . . . . o . . . . . e 168,800 ' C-115. . . : . . . . : . . . . . . . . . 119,40Q C-116 e . . . . . . . . . . . . . . . . . . . .. . . . . 37,300 C-117. . . o . . . . . . . o . . . . o . . . . . .. . . . . I70,000 � D-1OOo• . . . . . .1,152,000 • D-101s * : . . . . . . o . . . . . . . 103,200 E-10A. . . . . . . . . . . . . . . . . 0 91,500 � . Totaie 6,7t2,100 4,485,900 3,233,100 , ' � ' , I ' I , ' • I ' 1 I ' I •39— � I " i � - � '' ,I � � � � � � ' � � �� o ' � � � � , � � �� 1 ,�,� ►�,.. — � � 1 , � � � � � 1 � � �� , � � . � � ' � . ' , ' ' ' CAAPTER XIY C 0 N C L U 5 I O N S � Amr study of this tqpe, throughout its development, will proce�d ' through a series of detailed conclusions and decisions. The most important of these nre described in the foregoing re,port. Th� following four are considered basic: ' (1) The suburban area 2ikely to be served through the St. Paul sewer system by the .year 200A consfsts of all or pert of 29 separate municipalities or townships. This service area ' covers a gross area of 89,624 acres, en area 2� times aa large as the City itself. ' (2) The 1960 population within this service area was estimated at about 125,500 persons. The latest population projections from t'he Twin Cities Metropolitan Plannfng Commission indicate that , by the year 2000, thia same aren will contain 450,000 persons, nn increase of over 3� timeso I •(3) In order to meet the needs of thfs growing community, a systeaa - ' of sanitasy trunk cewers estimat�d to cost $24.4 million dollar� must be constructed di�rfng this same period. This does not , include the coste of the local sewage collection systems to be ' individually financed by the 29 communities, or the costa fo'r the sewage treatment plant which are fncluded in the rep ort of Che Minneapolis-St, PRUl Sanitary District. ' (4) Lnplementation of a comprehensive sewerage plan will require considerable cooperative effort among the many political jurisdictions 3.nvolved. Financing and physical acromplishmeit ' of an adequate system will pose many joint problems. Administrative or political organi2ation and finencing methods are beyond the assigned scope oE this report and are to be 1 considered in the forthcoming finance report and in the deliberations of the policy representatives study groups. � . 1 , -40- , ' � ' ' 1 ' ' A P P E N D I X A ' � ' ' A C K N 0 W L E D G E M E N T S , ' ' J , ' • 1 ' ' , J ' I , ' ' A C K N 0 H L E U G E M E N T S ' The �tssistance iven in the re r tion t g p pa a of h3.s report by the many individuais, firms nad egencfes is gratefully acknowledged. Maps, plaas ' and reports furniehed by techn3cal representatives €rom the communities studied, have aided immeasurably in the routing, sfzing and staging of �he fa�ilities presented. I ' Many of the communities in the� study area, eppointed ar had fn theig employ engineers, who were �heir technical advisors. The following is a , list of the communities and �heSr technical con�ultants: Arden Nills Roger Short of Banister Engineering Coe , Birchwaod Joseph Anderlik of Bonestroo, Rosene & Assoco Dellwood Otto 8onestroo of Bonestroo, Roseri� � Assac. ' � East.Oakdale Township Otto Bonestroo of Bonestroo, Rosene & Aesoc. � , Falcon Heights Joseph Anderlik of Bonectroo, Rosene � Assoc. Hugo � Howard Kuesisto of Kusgisto Engine Iring ' Lino Lakes Donald Carley of Milner W. Carley � As�oc. Little Canada � ' Donald Carley of M3Ynex W, Carley & Assoc. Mahtomedf Donald Blaicde�l of D, S. Blaisdell� & Assoc. Maplewood Harry Harvey of Milner W� Carley & !Assoc. � � Mendota Heights Edwerd Kishel of Bettec�burg, Townse�d ' Stolte � Comb. � Northdale A, W. Banister of Banister Engineer ag Co, , Notth Oaks Donald �arley of Milner W, Carley Assoc. North St. Paul Francis Hegen, Village Engineer I ' Oakdale Towriship James 5toker of EoC. Bather � Aseoc. , Pfne Springs R. G, Ziet2ow, Village CLerk , Roseville Robert Renson, Vi11Age Engineer and , Roger Short of Banister Engfneering Co. ' A-1 . � 1 ' Shoreview L. N, Knuts�n of Comstock & Davis, Inc, � R, Iiuston of Orr, Schelene, Mayeron & Asaoc. Vadnais Heights Harry Harvey of Mflner W, Carley � Assoc. ' West St. Paul Doaald Overland, City Engineer� ' City of White Bear Lake Otto Bonectroo of Bonestroo, Rosen � & Assoc. White Bear Township Donald Carley of Milner W. Carley � Assoc, ' Willernie Donald Blaisdell of D. S. Blaisdell � Assoc. Woodbury Township Otto Bonestxoo of Bonestroo, Rosenl & Assoc, ' I Appreciation is given to the staffs of the following agencies who ' contributed their time, information, maps and plans. State of Minnesota, Department of Highways ' State of Minnesota, Depart�nent of Health State of Minnesota, Water Pollution Control Commiasion Ili ' Twin Cities Metropolitan Planning Co+nmission , Particular recognition is given to Mr. Jack Stadler of St. Paul Bepar�met�t of Evaluations, Mr. CArI Flack of St. Paul 'dater Department and � Mre Arndt Duvall, Walter Thorpe and Roger Singer of Toltz, King, Duvall, , Anderson and Associates. The help given us by the individuals and a�encies listed fs deeply ' appreciated. ' ' ' ' ' + A-2 ' i 1 1 1 1 i APPENDI, X B ' ' , ' POPUI. ATIO'.N 1 & , L A N D U S E ' TAB1, E S ' � ' . ' ' ' � ' i I �1 1 1 1 � � A P P E N D I X C ' . � S E W A G E F L 0 W C A L C U L A T I 0 N S ' ' , ' , , ' 1 ` ' , i 1 � '� Q'i 00 f� �7 O a0 q .-i N er1 f� � � � � o M � N � � N ' .�-� u1 � . . A AG3AC� .� W a� M �7 M O C9 Ch G9 C1 V' W �J N O �' �C r� • • e . .C) � � � • • • o 'fy' �" � '�" `,� ' �+ � �tl ,i: n � � � p1 C ch GD V1 v) $ r•+ . . . . . 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