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TC 13110607BS Ryan Cruz Onsite Sewage System Permit i ��,�F THFp�9�` City of Yelm 4 � Community Deuelopment Department 105 Yelm Auenue West P.O. Box 479 YELM Yelm, WA 98597 WASHINGTON September 13, 2013 Thurston County Environmental Health 2000 Lakeridge Drive SW Olympia, WA 98502-6045 Re: Ryan Cruz Onsite sewage system permit Project Number 13 110607BS Parcel # 51540201200 To whom it may concern: Thank you for the opportunity to review the above referenced permit application by Ryan Cruz for an onsite sewage system to serve a single family dwelling unit at 10123 Grove Road SE, Yelm. The City of Yelm has reviewed the application and provides the following comments for your consideration while reviewing the application. The property is located within Yelm's urban growth area, and is subject to compliance with the County Wide Planning Policies, adopted by both the City of Yelm and Thurston County. CWPP 2.1 (e) promotes the concentration of development in growth areas by requiring development to be configured so urban growth areas may eventually infill and become ! urban, where urban services and utilities are not yet available. CWPP 2.2 (d) requires that development occurring within unincorporated urban growth areas conform to the development standards of the associated city or town with the explanation that development short of this requirement may cause the larger society to bear the expense of retrofitting the development to meet urban standards upon eventual annexation. This standard will further enable the larger community to structure how growth will occur to minimize the cost of providing the infrastructure for these service systems. To ensure that these policies are met, the septic tank should be located on the parcel in such a way that it may be served in the future by city utility services. The tank should be located towards the front of the property, to facilitate future connection and ease of maintenance. The septic tank should be a two compartment tank. (360)458-3835 (360)458-3144 FAX www.ci.yelm.wa.us The property is within the City of Yelm future water and sewer service area, however these utilities are not available for connection at this time. While not a City development standard, it is unclear how the proposal meets the standards for the location of wells at Section 173-160-171 WAC, or the land area requirements for on-site sewage disposal systems at Section 246-272A-0320 WAC. Thank you for your time and consideration reviewing these comments. If you have any questions, please feel free to contact me. � Sincerely, .�"'`�� Tami Merriman Associate Planner Community Development Department � Segtember_13.2013Ju1y 24. �(lk� Page 2 of 2 � r - - -. _ � � — � .� — _... � — _ _.... - - � - - � I � � �---- -, 1 ' � I � � � , � I � � � � � I ' � � � �` �DRAIN� o� / �\ I � I � � I ;F1E1.0 � HOUSE � � � 4 � i � � ' _,_. ---- ---I __ � i � / � � I � � � � ' j - � I �r �a�o-� � .�' t2p' 3q�`r%` �j r _ _. _.� � � � ``�.• -- —2.5'S1GE UTtl.11Y i SEMENt �� -•=C``} r �� _-E:___ � r_ \ � f . , 9 t�I I I I 1 ' f � � � , , � oR�vE � (I I � Q � � � �, � � , � , � � z �: p � a � PROPOSED _ �• _`i{ � � � °� Q (I I"'("' � a � , 3-BORM RES wAtF.R �.i z �, �-- �., ,� � w � � � `� �� u� � W � �((I � � � � PROP SEU ._ ` � � �_ � �II� � � � � �1 �WLLL � : � � � � ��, �� / � � w � �I�I � i J � FiRE � � ' �"""""� fi� �MYDRANT � � r� , "-YI.— O Q \ R50' ,� I �..,� � ( n: � ._�3} -- �`� _- _�_ _- — — --• — .1;� L� .� � ._ ._ _ ` ,' �J / / , ._._ 1 \ �-_._ ��" i / � �_ _ _, , �� : �Ul.t-•'�; �A � ��I� ; Q ;\ k I�'�. /' / � � � � � ✓�-`�"�a�� `�`� � z i � NC�USE -.---_ �� --' � � � ,�, I , � � � o o � i �,+�� --t� �-��"; ��i � � �- � o , � i � � ; � � � ' /� -- — �C�,��w✓�- Gv�='�- ��, � � � - 1 �_.� � I -�l� C,,°t"� �y ti�� 0 __ _ 30' I l � � ZO��(i � L _ � � , - - - - _._. � � ..._ __ - - _ .- - --.. � — J l�LI/li � - � � ��-u�e _ �."_ ��' ��," ��f � � ^ , /' ^ ' A FEE Wi�L BE CHARGED AF' v f 0 v� �'' ��R FINAL INSPECTION AND FWISHED GRApE �'+�ATER TIGHT CAP IYATER TIGHT �AP � � r , � � 14 GAUGE I z � TONING W1RE 14 GAUGE TONING 419RE j 21"� MIN, RISER, � I TO S�RVICE TO GRAVfTY SIDE SCWER � oo I CQNNEC7fON � � CENTER OVER � BOX ��\ ! N INLET TEE � ��.� a �l i_.., 1 , } __.� � I � S { 1 '--- 20Q GAI. � � � r � i � � � � i 4��0 ORFICE � 1 ! I � j `� `� ` i � 950 GAL ''' � � � 1 � (LIQUID � ► CAPACITY� I I I i I i I 4 L____J -BAFF�E ( 2fS vaLUME � 1/3 VflWME__ � 6° MfN BEC}DIfVG T PJ 0 TE: L FpR THE AP?ROPRIATE FLOAT LEVELS, SEE D4AWINGS �t7-13, #7-14 ANO #7-15 {SIMPLEX, DUPLEX AN� TRIP�EX� AS THEY APPLY. ALL STEP TANKS SHALL B� H-20 LOAD RATFD TANKS. THiS PO�ICY SHALL TAKE EF�ECT ON MAY 31, 2007. CITY pF YELM DEPT. QF PUBLIC WORKS � 000 �A��ON STEP TANK A`PPRSVED DWG. NC}. ��-_�� - 1 �J Pt1BLIC WORK5 b1RF'CTOR DATe DES. pWN. CKO, DATE ,!Y JEG TP 4/2007 .�� ,-,, �-._...:�_..:. , � -.��''> �"�^ �r '� � , ;. ..,"�..�":�,�.,� � ��.�. � ;�� ' �,�, � � �, Thurston County Permit Assistance Center t. � � ��'�d 2 �� "'` 2000 Lakeridge Dr.SW,Olympia,WA 98502 ��'•''�-i., (360)786-5490 / (360)754-2939(Fax) ,.r_:- - ' - ' TDD Line(360)754-2933 .��'' Y$'1r,,�,jt� ' ..;.. e:,._ ._.._.__...._ E1Tlc'lil sf§i7II( r":`.CRL.ItiiVIl'v�.l.liS —..: .. . ..��, !::.. ---- _`.____ ....___..:._......._.___ - ' t}��.1U.1.0 L}ilt�til�. 3!��-i;..U.�.�`�CP_"li111171'� `I��ti�`.�'TC��v �`C��i�!�'� , ..;�<�",=,, " �`��i�a�E�€�Ir€t��:4,�'��°��u�• �'e�f�€r�,� MASTER APPLICATION STA�+F USE ONLY DATE STAMP 13 1 'I �607 BS Permit Type: Site Application THURSTON COUNTY Sub Type: Residential RECEIVED site: 10123 GROVE RD SE YELM WA 98597 �•°� � �• Assessor Property ID: 51540201200 ��i� 1 1 �;��:a Applicant:RYAN CRUZ DEVELOR�E�"T SERVICES Owner:RYAN CRUZ Intake by: .�" The Master Application is required for all projects and shall accompany a project- e fic supplemental application(s).The Master Application may not be submitted alone. Property Tax Parcel Number(s): 51540201200 Subdivision Name(if applicable): GREENACRES DN 3 Lot#: 12 Property Address: 10123 GROVE RD SE City: YELM State: WA Zip Code: 98597 Directions to the Property: FROM HWY 507&YELiVi AVE IN YELM,EAST ON N 1ST ST TO RIGHT ON RAILWAY FcD SE TO RIGH i ON NiIDTJLE RD SE TO RIGHT ON GROVE RD TO SITE ON RIGHT. Property ACcess ISSUeS(locked gate,code required,dogs or other animals): QX No QYes If yes,Describe: OWNER IS RESPONSIBLE FOR SECURING ANIMALS BEFORE STTE VISIT. DESCRIPTION OF PROJECT PROPOSAL �� NEW CONSTRUCTION �, ,� (�, n t!',�fZ�-� �C�-�""� �1� cn � �� I � � 4s�'�' �r' `�'�: : p��c a�/�'Z Revised 8-13 Form No. MA001 Thurston County Pernut Assistance Center Master Application Page 2 of 2 Type or Print: Additional property owner sheet can be obtained online at : . . _ or copy obtained from the Permit Assistant Center. Property Owner(s): RYAN CRUZ Mailing Address: 9935 COCHRANE AVE SE � City: YELM State: WA Zip Code: 98597 Phone#: (253)318-5494 Ext. Fax#: Cell#: E-mail: Signature:* Date: AppliCant(if different than owner): Mailing Address: City: State: Zip Code: Phone#: Ext. Fax#: Cell#: E-mail: Signature:* Date: Point of Contact: �M HENRY DESIGN ERVICE IN Mailing Address: PO BOX 14531 City: TUMWATER State: WA Zip Code: 98511 Phone#: 956-7242 Ext. Fax#: 956-7242 Cell#: 507-1267 E-mail: HENRYJIM COMCAST.NET Signature:* A Date: ''— J— I BILLING INVOICES The base application fee charged at the time of application covers base hours listed on the fee schedule. When the base hours by a Department aze used,a monthly billuig invoice will be generated for additional hours at the hourly rate listed on the fee schedule. Should review of the project exceed the base hours allotted,billing invoices shall be mailed to: ❑x Owner ❑Applicant ❑Point of Contact �Application is hereby made for a permit ar permits to authorize the activities described herein. I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief,such information is true, complete,and accurate. I further certify that I possess the authority to undertake the proposed activities. I hereby grant to the agencies to which this application is made or forwarded,the right to enter the above-described location to inspect the proposed, in-progress or completed work. I agree to start work only after a11 necessary permits/approvals have been received. Revised 8-13 Form No. MA001 I I Thurston County Environmental Health j 2000 Lakeridge Dr. SW Olympia,WA 98502 1 � � (360j867-2673/(360)8fi7-2660(Fax) �' ��`� � TDD Line(360)754-2933 I�tl(_}Z T: � c 4 "�t. � , :;: � , �r�-:�-��_�;:� _ Supplemental Application ONSITE SEWAGE SYSTEM STAFF U5E ONLY DATE STAMP 'I 13 110608 H D ��4��ST0�3 CflUNTY I Permit Type: On Site Sewage Systems RECEIVED Sub Type: On Site Sewage 5ystem � t � � � {��;',�� i site: 10123 GROVE RD SE YELM WA 98597 ``"`" Assessor Property ID: 51540201200 DEVELOPMENT SERV{CES Applicant:RYAN CRUZ Owner:RYAN CRUZ I � i i Intake b : ; � i lhis application cannot be submitted alone.In addition to this form,a complete package includes: ' A licant I PP Staff Use � Use SUBMITTAL CHECKLIST Onl i QX Master Application. � � For new septic systems requiring a design: � a. Site plan(5 copies—11"X 17"maYimum size), 1"=20'or 1"=30' scale. (See attached checklist) � b. On-site sewa e(se tic)system desi 3 co ies � For replacement of existing septic systems requiring a design:On-site sewage(septic)system design � (3 co ies). � For submittals not requiring a design: (examples: sand filter and/or mound rebuild using e�sting � design,septic tank or pump chamber replacement,septic tank placement):Site plan(3 copies—11"X 17"maximum size . � For onsite sewage system projects within a ciry jurisdiction,the application must be taken to the city � for review and comment prior to submitting an application with Thurston County. If unable to obtain comments from the city,Environmental Health will route the application to the city. The project will be placed on hold until comments from the ci ha�e been received. � Applicable processing fees.Refer to current fee schedules. Depending on the adopted fee � structure, additional ees ma occur i base hours/ees at intake are exhausted. SEPTIC DESIGNER: Name: JIM HENRY Company Name: JIM HENRY DESIGN SERVICES INC Mailing Address: PO BOX 14531 City: TUMWATER State: Wf1 Zip: 98511 Phone#: 956-7242 Ext. Cell Phone# 507-1267 Fax#: 956-7242 E-mail Address: HENRYJIM@COMCAST.NET � �� Revised 4/12/13 Form No. SA016 I I I I Thurston County Envirorunental Health � Supplemental Application for Onsite Sewage System j Page 2 of 3 � i I � JITRISDICTION: ❑ Thurston County Select one �Urban Growth Area o£ � e � yv) ❑City of Select City from List CITY JTJRISDICTION REVIEW AND COMN�NT: ❑Approved ❑Disapproved Comment�`s� �' � ' 1 ,,. Signature: ,� Title:��5�`��,�?,-��c Date: � / TYPE OF PROJECT: �" ✓�L� 0 Onsite Sewage System with Residential Site Plan Review (Project includes a new structure or additionlremodel to existing struchire) ❑Onsite Sewage System only(HD) (no change to structure that septic will serve) �Residential Single Fatnily ❑ Residential-Multifamily #Units �Ton-Residential i � ; TYPE OF PERMIT: �On Site Sewage System ❑Tank Only ❑Sand Filter and/or Mound Rebuild or Replace i ❑Community Drainfield � WORK TYPE: I 3 ❑x New ❑Repair of a Failure ❑Modification Upgrade Number of Bedrooms: I WATERSUPPLY: ❑Existing �F � '�� r �; � x Sin le Famil well ; ❑ g y ❑Two Party well ❑� � i Sysi `� F,( �� c�� j) � e�S C i Name of Community system ID# , C (��j � c� �(�91 ��'S+ `�e� , � 1 iACCESS: ' ,�e �a�°�f �`` �� x � ��z✓u`"�" � i, ❑Existing Access O Proposed Access ❑Private Dri` ' �� ',�-�-� ' ❑Private Road � �r�� r�� 1u 5 f� �� Public Road GROVE RD L�u'I't� ` � �p o iL % '�`�` ,� PROPERTY INFO: ti�f �� u� �� -' ' �� " w; �� t s 4 (��""�,�� c�1�e a 1 W a t e r o n o r w i t h i n 3 0 0 o f r o e N o n e S a l t ❑R i v e r/C r e e k/� � �^ P P rt3'� ❑ ❑ .- G ! 1 �� U L Gp�. ; Name of body of water: GEODATA INDICATES ffiGH GROiJND WATE �, ��ar�n ; ��1 � Has the property ever flooded? ❑No �Do not know ❑Yes,� �", � �si , , _ � i Slopes greater than 20%? �No ❑Yes i APPEAL: Any person aggrieved by a decision,an inspection,or notice made by the Health Officer shall ha�e the right to appeal the matter as specif'ied in Article 1 of the Thurston Counry Sanitary Code. EXPIRATION: .' Sewage System applications expire one year from date of application per Thurston County's Sanitary Cod,Article N, Section 9. This period may be extended for a single one year period��ithout charge,if specifically requested by the applicant prior to the eaJpiration date. Revised 4/12/13 . Form No. SAQ16 I � � � {�'CL/ }�! ��JIM HENRY DESIGN SERVICES, INC. THURSTON COUNTY HEALTH DEPARTMENT ON-SITE WASTEWATER DISPOSAL SYSTEM DATE: August 20, 2013 APPLICANT: RYAN CRUZ 9935 COCHRANE AVE SE YELM, WA 98597 �'� � �"�� '�u? <y a,,waa • `�, �,L � � LEGAL: LOT 12 GREEN ACRES DIV. 3 �`` 5, ,z, 'sT PARCEL#: 51540201200 JIM HENRY , � LICENSED DESIGNER ` �_ EXPIRES: Of3111/ t� PROJECT#: DESCRIPTION: NEW CONSTRUCTION PROJECT DETAILS: NUMBER OF BEDROOMS 3 i GALLONS PER DAY (GPD) FLOW 360 APPLICATION RATE 0.80 ; DRAINFIELD -Absorption Area Required 450 SQ.FT -Absorption Area Designed 450 SQ.FT THURSTON COUNTY -Trench/Bed Length 60 FT RECEIVED - Trench/Bed Width 7.5 FT �a;�f� � � �� DRAINFIELD CROSS SECTION DEVELOPMENT SERVICES - Depth below Original Grade 18 INCHES - Graveless Chambers 12 INCHES - Sand under Trench/Bed 36 INCHES -Vertical Separation 24+ INCHES - Fill Depth 12 INCHES SEPTIC TANK - Size & Composition 1500 GAL CONCRETE - New/Existing New � � � � J V 1 �� f� ��JIM HENRY DESIGN SERVICES, INC. APPLICANT: RYAN CRUZ DATE: August 20, 2013 PARCEL #: 51540201200 PRESSURE SYSTEM - 4 LATERALS System Parameters Pressure Calculations Orifice Size 3/16 inches Minimum Orifice Discharge Rate 0.62 gpm Residual Head at Last Orifice 2 feet Total Lateral Length 232 feet Orifice Spacing 2.5 feet Number Orifices Lateral 1 23 Number Orifices Lateral 2 23 Number Laterals 4 Number Orifices Lateral 3 23 Lateral 1 Length 58 feet Number Orifices Lateral 4 23 Lateral 2 Length 58 feet Total Discharge Rate 57.04 gpm Lateral 3 Length 58 feet Lateral 4 Length 58 feet Friction Loss Pipe Class 40 Tightline Friction Loss 2.05 feet Lateral Line Size 1.5 inches Manifold Friction Loss 0.31 feet Lateral Elevation 338.5 feet Lateral Friction Loss 0.77 feet Friction Loss through System 3.12 feet Manifold Length 6 feet Manifold Size 2 inches Dynamic Head Residual Head at Last Orifice 2 feet ! Elevation Difference 3.5 feet Add-on Friction Loss 0.2 feet Elevation Difference 3.5 feet Tightline Length 40 feet Friction Loss through System 3.12 feet Tightline Size 2 inches Total Dynamic Head Loss 8.82 feet Add-on Friction Loss 0.2 feet Total Discharge Rate 57.04 gpm Total Dynamic Head 8.82 feet ; Drain Down Calculation: If orifice onentation is 12 0'clock,the following calculation does not apply. Orifice Orientation 12 0'Clock Length of Pipe 232 feet � Liquid Volume in Pipe 24.59 gal ��' � � Drain Down Volume 12.30 gal �`��P V,NH�''��F_ �/— !3 7X Volume 86.07 gal �'�� .- \'�s � Dose Volume 5�� JIM HENRY f� (� UCENSED DESIGP:Eft 'O. �'S:,'>_'L�^�,�_'�A Dose volume meets 7X rule: N/A EXPlRES: 08J i 7/�� Wholesale Products Page:6280-1 Performance � � � �;�,;��„ce� Data ��ry�� {�M: 1 760 �IX�Id(9C:Z� �IQS: 7�1�� ' � 9 30 � SPSO 8�SP50A8 �/f 4Wi. �6 �� d = 3 °10 SP40 0 0 (upu6ty-US.G.P.NI.0 20 �0 60 60 100 120 140 titers/Second 0 2 4 6 B I I � � The curves reflect maximum pe�fo►mance characteristics without exceeding full load(Nameplate)horsepower. Ali pumps have a i service factor of 1.2. Operation is recommended in the bounded area with operational point within the curve limit. Performance curves are based on actual tests with Gear water at 70°F.and 1280 feet site elevation. Conditions of Service: GPM: S �JR�`� TDH: Sl.�� j° HYDRC3MIATiC' P� �9 �« N'T�� f SEALED RISERS TO SURFACE � �'Z�� st000tzt ,,•r1, JIM HEtVRY '°`;��, LICENSED DESIGNFP. `(�. � .�_,SS..'S.�'5:.1`>',`.p ro�Ma� � �l� EXPIRES: i?S�'tl/ ( y C.Nkc,c v.e.�vE/Q�,:uc �►scc�+.t�cT I i, i Ha„� 1 Qo�- cs� n��`�►P c i-�,nti�� v.Nws�.a+cs� lv�—C�A 1_ �E;�>t-� ru►.ro� T�tit��i� ; ��asc c:._o�n,<<�rL I w�°r'�,,� r=L a��n �–i%��r_ aZ�:'t–e_f<' I I 18�� i � �3+ _ � �. THURSTOM COUNTY RECEIVED A�� 2 � 2��3 DEVELOPMENT SERVICES SOIL LOCS-8/13/13 l� 0-24"VERY GRAVELLY SANDY �OAM (TYPE 4) 24-70"EXTREMEIY GRAVELLY LOAMY MEDIUM SAND (TYPE 3) NOT RESTRICTIVE O2 SAME AS HOIE #1 TWO HOLES USED DUE TO CONSISTENCY OF SOIL AND LOCATION OF HOLES � RBM IS GROUND ELEVATION AT NORTHEAST LOT CORNER AS INDICATED. RBM EL =340.0 �l STUBOUT/CLEANOUT EL = 338.7 � SPS 2633HW 3-COMPARTMENT TANK, 1500-GAL SEPTIC COMPARTMENT WITH OUTLET FILTER INLET EL = 338.7 1000-GAL PUMP CHAMBER, PUMP EL= 335.0 TIMER REQUIRED, DOSE COUNTER 8� ELAPSED TIME METER REQUIRED �3 40 FT OF 2-INCH PVC TIGHTLINE, SCHEDULE 40 6 FT OF 2-INCH PVC MANIFOLD, SCHEDULE 40 4� WATER CONNECTION BOXES NO OTHE4'. WELLS WITHIN 200 FT OF PROFJSED DRAII! FIELD KNOVVh�: TO D�SIGNER. A 30-FT BENTONITE SEAL IS REQUIRED ON THE PROPOSED WELL TO ALLOW OFFSITE DRAIN FIELDS TO BE 90+ FEET FROM THE NEW WELL. NEW WELL PROPOSED DUE TO CITY OF YELM UNABI.E TO SUPPLY WATER TO THIS IOT. 3 FEET OF ASTM-C-33 SAND IS PROPOSED UNDER THE DRAIN FIELD TO ALLOW NEW DRAIN FIELD AND RESERVE AREA TO BE 75+ FEET FROM TFiE PROPOSED WELL. PROPOSED DRAIN FIELD AT 2 FEET FROM UNUSED UTILITY EASEMENT IS ALLOWED PER ARTICLE IV SECTION 9.3. �� '��P�W �� ° t� ,= �i'-�.�-13 si000,zi � JIM HENRY �1? LICENSED DESIGNER �PIRES: 08/11/J-� SHEET 1 OF 2 DIRECTIONS: JIM HENRY DESIGN SERVICES, INC. FROM HWY 507&YELM AVE IN YELM,EAST ON N 1ST ST p0 BOX 14531 TUMWATER WA 98511-4531 360-956-7242 TO RIGHT ON RAILWAY RD TO RIGHT ON MIDDLE RD TO RIGHT ON GROVE RO TO SITE ON RIGHT. CUSTOMER: ----------------- — RYAN CRUZ yF� RAILWAY RD _ M�VF M� TP#: PROJECT NUMBER: �,�Op�F S 1540201200 � N 1ST SITEADDRESS: 10123 GROVE RD SE SITE LEGAL: INSTALLATION Hwr so� LOT 12 GREENACRES DIV 3 :ORD DRAWING �: � - - — — — — — — — — — — — — — — — — — — � I � � r----, I ' � I I � ' — — I � ' � I � ' � � � / � � �DRAIN� o o / I �y. � � ;FIELD ; HOUSE � \ I , � I ; ; / � � � -, ' ' � � � i �� ► ' , i / i � � �__` � _ _ \ I �'�R,oo � '� t 20' � � 4 �- - - - -� - -2.5'SIDE UTILITY SEMENT-� - \ � r , • 9� 1 1 ; / / \ I I I II � � DRIVE i � � � �� o � � ; ' / \ � \ z � � � Q � PROPOSED p w � so' I � Q �I I� I ^ � w ; I 3-BDRM RES Wp,1ER iI w j � i � I w I � IV � p I � �� ' I PROP SEU I Q � � � I w _ � I I I I , , R,s � W E L L � � / � � � � � �� FiRE � I 2 _J � � \ R50' I�I Z �HYDRANT / I � �� -- - - 3 - - - ? - - - - - - - - -JI�,^ � � � � / i \ I / ' r-� \ '` � � i � �� . � �� / I � ° �� i I � - - i � i � HOUSE � � I ; Q ; oo I � � � / � � � � ' o ' � / � ' ' � i � � � — � i i � � I L _J I � 0 30' I I � L — — — — — — — — — — — — — — — — — — — — J A FEE WILL BE CHARGED AF' FOR FINAL INSPECTION AND � N i � O � W m N w U N = = Z " z � � Z Z cn — � ' > �~ Q Q � � � � � � W c, a cn � p � 0 � (� N w O w W � w � � � � U � � � = Z �w � '- w Z 3 � `� � 3 3 W � > w � o � o u� � 0 O O (n °' � p � J F- Z C`') � � ~ J J Z ¢ � 0 �'n �/ � 0 Q w �� O O Q' Q Q rn � (� 0 V � V = U � II � ~ J � O J cn v W Z N N N u- Q' � � Q (� 1- O �0 � � 0 ? � �� 3 � � Z W � � p O � OLL1 � V) � "' � � � Z J J '-'-' o � � � � V> H w � Q O�� - � � �- �- ,n ZW c� W F U u' U� w � � N Z � W � "' � uNi U w Q Z a � �Eti' � O � o � w � '�' � � O � O ~ W � o p ' � � = x � � � —� Q Z 'n Q � Q � � = W �- m � a Q _ � �n Q ~ � S � p � � c0 � _ � � ? � F C9 I— � J � QU� OV Q O Q � � Q � a. 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O � rn m�= TF O O N� D � � N m i�`^ s},rEO��'� � , , � � � N GJ N Z m p v 2$ a � . , . ,� ; , , �� r� n 00 0�rn n V' N Z iv 4 � a e . � � � C D Z ` z1�-� �''��,� Z O N � I'll � A�,,�;�ys D � � :U r.> � � T � C� o � G � - � ; , ('X` C� � O � �' -° cn G Q T �' N. Q G rn m �-�I n �p -v < � W � � � Q �• � �' n � O o � � (� �. (�p � Q Q n v�, � m co _ I Q � �' n� �-O c� � — cn � '�� n '� � � m W Z N Z m VY � � � Q Q � � A W N � N Q � � cD � O rn � p- .� . � O � cD O ' I T O. � ' N � WAC 246-272A-0320: Developments, subdivisions, and minimum land area requirements. Page 1 of 3 � WAC 246-272A-0320 Developments, subdivisions, and minimum land area requirements. (1) A person proposing a subdivision where the use of OSS is planned shall obtain a recommendation for approval from the local health officer as required by RCW�8.17.15Q. (2) The local health officer shall require the following prior to approving any development: (a) Site evaluations as required under WAC 246-272A-0220, excluding subsections (3)(a)(i) and (4) (d); (b) Where a subdivision with individual wells is proposed: (i) Configuration of each lot to allow a one hundred-foot radius water supply protection zone to fit within the lot lines; or (ii) Establishment of a one hundred-foot protection zone around each existing and proposed well site; (c) Where preliminary approval of a subdivision is requested, provision of at least one soil log per proposed lot, unless the local health officer determines existing soils information allows fewer soil logs; (d) Determination of the minimum lot size or minimum land area required for the development using Method I and/or Method II: METHOD I. Tabl@ X, Single-Family Residence Minimum Lot Size or Minimum Land Area Required Per Unit Volume of Sewage, shows the minimum lot size required per single-family residence. For developments other than single-family residences, the minimum land areas shown are required for each unit volume of sewage. However, the local health officer may require larger lot sizes where the local health officer has identified nitrogen as a concern either through planning activities described in WAC 246-272A-0015 or another process. TABLE X Minimum Land Area Requirement Single-Family Residence or Unit Volume of Sewage Soil Type(defined by WAC 2�6-2"2A-0220) Type of Water Supply 1 2 3 4 5 6 Public 0.5 acre 12,500 15,000 18,000 20,000 22,000 2.5 acre� sq. ft. sq.ft. sq. ft. sq. ft. sq. ft. Individual,on each lot 1.0 acre 1 acre 1 acre 1 acre 2 acres 2 acres 2.5 acres� �See WAC 2��16-2?2A-0234(6). nneTHO�u.A minimum land area proposal using Method II is acceptable only when the applicant: (i) Justifies the proposal through a written analysis of the: (A) Soil type and depth; (B) Area drainage, and/or lot drainage; (C) Public health impact on ground and surface water quality; (D) Setbacks from property lines, water supplies, etc.; (E) Source of domestic water; (F) Topography, geology, and ground cover; (G) Climatic conditions; (H) Availability of public sewers; (I) Activity or land use, present, and anticipated; (J) Growth patterns; (K) Reserve areas for additional subsurface treatment and dispersal; ' (L) Anticipated sewage volume; (M) Compliance with current planning and zoning requirements; (N) Types of proposed systems or designs, including the use of systems designed for removal of nitrogen; http:Uapps.leg.wa.gov/wac/default.aspx?cite=246-272A-0320 09/03/2013 WAC 246-272A-0320: Developments, subdivisions, and minimum land area requirements. Page 2 of 3 (0) Existing encumbrances, such as those listed in WAC �46-272A-0200 (1)(c)(v) and 246-272A- 0220 (2)(a)(vii); and (P) Estimated nitrogen loading from OSS effluent to existing ground and surface water; (Q) Any other information required by the local health officer. (ii) Shows development with public water supplies having: (A) At least twelve thousand five hundred square feet lot sizes per single-family residence; (B) No more than 3.5 unit volumes of sewage per day per acre for developments other than single- family residences; and (iii) Shows development with individual water supplies having at least one acre per unit volume of sewage; and (iv) Shows land area under surface water is not included in the minimum land area calculation; and (e) Regardless of which method is used for determining required minimum lot sizes or minimum land area, submittal to the health officer of information consisting of field data, plans, and reports supporting a conclusion the land area provided is sufficient to: (i) Install conforming OSS; (ii) Assure preservation of reserve areas for proposed and existing OSS; (iii) Properly treat and dispose of the sewage; and (iv) Minimize public health effects from the accumulation of contaminants in surface and groundwater. (3) The department shall develop guidelines for the application of Method II by (insert date one year from the effective date). (4) The local health officer shall require lot areas of twelve thousand five hundred square feet or larger except when a person proposes: (a) OSS within the boundaries of a recognized sewer utility having a finalized assessment roll; or (b) A planned unit development with: (i) A signed, notarized, and recorded deed covenant restricting any development of lots or parcels above the approved density with the overall density meeting the minimum land area requirements of subsection (2)(d) of this section; (ii) A public entity responsible for operation and maintenance of the OSS, or a single individual owning the OSS; (iii) Management requirements under chapter 246-272B WAC when installing a LOSS; and (iv) Extinguishment of the deed covenant and higher density development allowed only when the development connects to public sewers. (5) The local health officer may: (a) Allow inclusion of the area to the centerline of a road or street right of way in a Method II determination under subsection (2)(d) of this section to be included in the minimum land area calculation if: (i) The dedicated road or street right of ways are along the perimeter of the development; (ii) The road or street right of ways are dedicated as part of the proposed development; and (iii) Lots are at least twelve thousand five hundred square feet in size. (b) Require detailed plot plans and OSS designs prior to final approval of subdivision proposals; (c) Require larger land areas or lot sizes to achieve public health protection; (d) Prohibit development on individual lots within the boundaries of an approved subdivision if the proposed OSS design does not protect public health by meeting requirements of these regulations; and (e) Permit the installation of an OSS, where the minimum land area requirements or lot sizes cannot be met, only when alf of the following criteria are met: (i) The lot is registered as a legal lot of record created prior to the effective date of this chapter; (ii) The lot is outside an area identified by the local plan developed under WAC 246-272A-0015 where minimum land area has been listed as a design parameter necessary for public health protection; and (iii) The proposed system meets all requirements of these regulations other than minimum land area. http://apps.leg.wa.gov/wac/default.aspx?cite=246-272A-0320 09/03/2013 WAC 246-272A-0320: Developments, subdivisions, and minimum land area requirements. Page 3 of 3 (6) The use of a reduced-sized SSAS does not provide for a reduction in the minimum land area requirements established in this section. Site development incorporating reduced-sized SSAS must meet the minimum land area requirements established in state and local codes. [Statutory Authority: RCW 43.20.050. WSR 05-15-119, § 246-272A-0320, filed 7/18/05, effective 7/1/07.] http://apps.leg.wa.gov/wac/default.aspx?cite=246-272A-0320 09/03/2013