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i.
<br />�" '�' '. � a . . . � x� � '� � ,� � � . t2 � �
<br />� � g„ '` i . Low pressure sys[em for � � � p ' � �� �� �k � � � � �`� ��� � ��'�.
<br />� ���� 4A ��� � �� � �n /// � � f" i ' � � .` �� � � t
<br />r t� ��. nor[hern parcels [o connect � � �. � .r++�
<br />,( � . , to existing 8-inch gravity �:y, r o / � � , r # { `� s�...
<br />`� � + ±� �. �. �.s�_` i/ �' � � r� . ' z� � 1r x ;� ,. � -� � � � �;
<br />� , j � ' Low pressure sys[em for Clty of
<br />�� � � � � ��%j � northern parcels ' �*. � IC �:{ ���
<br />, _ _..„ � � / � . . ' d� � � ,�" .
<br />_ a6" - ��. ' ,��� // / L�",�< < f�' � t "" ' � �/�
<br />Ground Elev.: 952 ft ��� , � ' 'r � � � � '�'
<br />Approx InvertElev:931 f[ � � '_ q�,,, � .�;"` ` 9 ' ���r
<br />� � � 4
<br />.. Elev:928f[ " � . � � ,`�. J-�„ �� � /,_.� ."'wR ��. { :
<br />Base
<br />�` � - + ,.. ��. �,. „�InvertElev..960k for12" rav� �• ' � �V' ..
<br />�`
<br />�
<br />�I� �,� • - , r.,.� t`" � ' �� = Figure A21 - Proposed NW
<br />�� • � '!Y,GroundElev:972k �� �_ : ,,, -
<br />X�� ,� �_• � 9 Ty� �y..� ,� �� SanitarySewerSystem
<br />��� -� 1 ,+ . ..�4�.� : Base Elev.: Can vay depending on ���
<br />i� � ; serviceabiliTy for ultima[e developmen[ Y�-��j�, � i�,1 Northeast & Northwest Urban Service
<br />�.x,�. u � �.:yq. � � •�, . � areas - assumed to be 942 f[ '`, t " Afea EXpanSion
<br />� -' ' : '. `�
<br />.���.'�i�' , .��� :ti .�' �`,�#,i�`'.+C�-�'•�. . m.� �.. . � .. a` z v .. , CityofElkRiver
<br />�� m `►� t�+� I ' � � r�� .
<br />/ � ' �- � � i '� : Leqend
<br />�:1 , �`,� Y i ��`li�r� � �`,�
<br />��; � �� � ' Trensitwn from 10 mch to .�. Existing Sanitary Sewer System
<br />��i, � ,-: }�, ' �y I 12-inch sewermain may
<br />�'',� x�.., . . , � 7,F� '� �� � �,�; ry.'', change dependmg on final � ' � �. —� Non-Trunk Gravity
<br />}-�.'�� � ' �`.r.' developmentlayouts f�' �
<br />_i � � A,;; � . �, o S� � � _ 3 , —� Trunk Greviry
<br />w v . _ .. '� " P � � _ y � -� , ..
<br />�
<br />- �. � � � _� � � � - - . � `� - � Low Pressure System
<br />i�' ��rl . . � t � . � ._ ,� ���;..
<br />a�r� ,.: ��f . � �.. � _ ? � �� ��` �� �Forcemain
<br />�u,�. - n , x y. . . � '�§. ..��� < 'i 4 '�
<br />� �� t � , ..{�.. ��, �. ��„� �i°-= '. — m LiftStation
<br />� � � :.
<br />� �� i� �, �` N � � � � / ti �r� Existing 6" forcemain [o be � ` i � s �" � . �� � �,y Proposed Sanitary Sewer System
<br />�'R,t J i � '� °�� -'� �� ., abandonedoncethe '��
<br />d •�+.�, �� j �k, z � . � i � � � . - -� � 10-inch Trunk Grevit
<br />ti,,, .. V � a �'.<� Regional LS is construc[ed �� � , �'4 i , <' .q I Y
<br />wr. ' q-
<br />.. .fi fi, t a•' - � •�.�. .,, , _f� ' � +l�=i� � f .� � �q, i�,.l,�q- �i . 12-inchTrunkGreviry
<br />_ \
<br />'.� � ;; �,q� �, ', • ' ... <•� � ,.""i .
<br />�.k �' � "- 'y. "� �-Pro osedtwo arallelforcemams � �� - ,� x ' �'
<br />�� V
<br />..,� . , rv.,,,x _ ,rc"i' P P • ' / .:. � , . ,i �, °� . . ("`.., - � Forcemain
<br />.��. .-y, � ^- �i ; �� of at least 12" and 16" in diame[er !�- , � , ,�
<br />� " �
<br />� 1 '�t from Regional LSto WWTP -�� _ ,- ;� ' � � m LiftStation
<br />-, ,. , � , d . h . _ . - _ . . � u
<br />�; . � , I .
<br />" .�p, �� , � „� � � �l � ... �� � ��� p � ' ProposedSewersheds
<br />� � ~;�� ) . � ' � � Low Pressure System for � , f
<br />,�-pi� ' :� p� �� � �^�� �,"• � . �two parceis peiow 55o it eiev — Ground Elev.: 995 ft Wndsor LS
<br />' Approx. Invert Elev . 980 ft
<br />,�, �4 � � ±��� � — 9� �-_ 1' . � � � � sase eiev.: e�s r� �LJ Nw-�s-i
<br />�.� _'
<br />r` � a
<br />�. ,^� _ a.:.��rr•a� ....,� �fi b��.� � � � . � �: J ,� ft�i NW-LS-2
<br />��i; m�, y w+L�� �--� r � Low Pressure System for � _ ��� �' Grevity to MH-1
<br />�y", parcels on western edge �
<br />' � .�4✓ �,y . - ' s
<br />.. � � - � y w.{ ; . ., . � � _� _ Gravity to M H-2
<br />1
<br />�'y��, � �-,7�.,,'�u. " 5.: � t3 �. � � . � �' _�' � . � ONWStudyAreas
<br />MH 2
<br />� � a �t �. ` �'�� �` Rim Elev.. 1,004.69 ft �. r — -
<br />� � - ' Ciry Boundary
<br />f.`',',�� "" �.�� '� ^ � = �� Invert Elev.: 984.27 ft.. � -- ��
<br />^�,I i . ' . v )
<br />. ��� r�., _ .
<br />�' I . . -- ..;� - 9 � : �- ,�'-" �. � � � . .- ; �_ � � �: : � N
<br />'� � .,� � {.,�� See FlgureA22 tor � MH-i Low Pressure System for
<br />i. Forcemain Layout fi e� � �� Rim Elev : 934.29 ft parcels on southern portion ��� � 0 1,750 \^ �C �
<br />>
<br />� � � ;
<br />�" ��� �1�-� • ��'^ � � a ���`•, .�.�f ' '+..�.InvertElev.:927.59ft �Feet VVJ
<br />y�° " 1 � _ . ' '� � p,, .., ._ ":.F. ��.� unrn=��soree�
<br />Arrows indicate wastewater flow pattern given the proposed grading for the mining areas
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