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16034 68TH AVE W.PDFiiiiiiiiiiii5259 16034 68TH AVE W Water Service Drawing The City of Edmonds EASEMENTNO . ............................................ NEW CONSTRUCTION REPAIRS ❑ LID NO . .................. . ASMT. NO5. 0.56.0 .9............. OWNER ....... N.CvS.0.t-4 .................................... CONTRACTOR .................................................................................... PERMIT NO. 1. --T LEGAL DESCRIP LOT. N � . ...................................... BLOCK NO. .................................... JOB ADDRESS 1(10.0-13A ......... (0.!a ......... A ...4 .... ......... NAMEOF ADDITIOP' ..: ........... I ......................................................................................................... f- 7- lz I(D034 & TA B ANv. -mom cc 525. C, 25 ET 14" 1 C-1 "T H A- proved: MW-0001 .11/75 (REV. 11178) :)ATE B�,e6& r. ........................... V�r...+w-� �..ss `h1 ��iF.r��-.:�^ar{�--- — _.•"____ ".` .:`"5'''�"' ""'�,.�.rt`�:�-�Ry�.o�...3..S4�sYv.�.:.t+t�„stuv^�.n:�.••--,rvi+.R^r�1R'''rum,�.:...w"".�,�wti.•�.;,fi/l�,^' G FZ E C E I V E 90 DA .S ���i... CITY OF EDMONDS- OCT-1 81999 SIDE SEWER PERMIT PUBLIC WORKS DEPI PERMIT Address of Construction: Property Legal Description (Include all easements): Owner and/or Contractor: ­1!'G.A . -V /�iCd ISC)N -/ 40 k hlh� State License No. O-S k PL-L'.— TT P_ M Building Permit No. ' ' �9 0 `Single Family ❑ Multi -Family (No. of Units ) ❑. Commercial ❑ Public Invasion into City Right-of4a' y: [ No ❑ .Yes RW Construction Permit No. Cross other Private Property:,K No' ❑ Yes Attach legal description and copy of.recorded easement, . I-certifthat'Ya V read and shall comply with all city requirements as indicated on he back of the Permit Card. Date * CALL. DIAL -A -DIG (1-800-424-5555) BEFORE ANY EXCAVATION OFFICE USE ONLY * FOR INSPECTION CALL 771, PUBLIC WORKS DEPT. Permit Fee: Issued By Trunk Charge: 2S ' 00 Date Issued: 5 'q Cf Assessment Fee: Receipt No.: 1.410b Mime Partial Inspection: Date Initial Comments Reason Rejected: -- Date Initial Final Inspection Approved: Date �ILlnitia QQ,,.AFT ** PERMIT MUST BE POSTED ON JOB SITE ** White Copy: File Green Copy: Inspector Buff Copy: Applicant , ' Revised 3!917 The City of Edmonds Side Sewer Drawing EASEMENT NO. ............................................ NEW CONSTRUCTION k REPAIRS ❑ LID NO . .................. . ASMT. NO................... OWNER................................................................................................ CONTRACTOR......._.............---•--._._.._._.................._..--------•--.._.__...---._.. PERMIT NO. f' JOB ADDRESS IGQ3..4---...._...�g.............................................. LEGAL DESCRIPTION: LOT NO. ...... ................................ BLOCK NO. .................................... 3 -� r- � A'1• -1 P, C _ Sr' CL. •� rr & �.T....., CT r f C 7 1 C: CA O 4 c" N n N !7 O �• 1(.034 (08t'` NAMEOF ADDITION.....................•--•----............_...-----...__..........................._........................._......._.. Jul 4" �. Q� t� 4" d10 4"ys• T PYG `� Approved: i 40}`' r 1 PWW 0001.11/75 (REV.11/78) DATE .I.u�.l.q. ..................... By�ii----- . PLANNING DATA NAME: Qlc# WS-n SITE ADDRESS: I (�P 34 - (& At w: DATE: ?1/s/ 9 2 ZONING: ' lZ PLAN CHK#: 99 :23 7 PROJECT DESCRIPTION: New �hAll rl^UWAPAUL CORNER LOT (Yes/No) FLAG LOT No (Yes/No) SETBACKS: Required Setbacks: Front: 25Left Side: l d ' Right Side: 1 o ' Rear: zs' Actual` Setbacks: Front:loLeft Side:'13_Right.Side: 19' Rear: 25' Street map checked for additional setback required? (Yes/No) LEGAL NONCONFORMING LAND 'USE. DETERMINATION ISSUED N (YIN) LOT COVERAGE: 2i4��7 Maximum Allowed: 35­.Actual, 136--)z 3,64i ` 2Z°z BUILDING HEIGHT:. Maximum IAllowed: Z5 Actual: Height: 2 5' Datum Point: Datum _Elevation 4 ?�, S3 A.D.U. CREATED?: C)AW pxw— 0:C(4t1 `�,c 5uaw;' plat( dam., /:� Sascrwu '.6PLA' S+-rtf- Afrr,., M S(.V 'w .t4{d A 5 buwn , n 546A4/ ao foul LoMUw y tg i1u(Phl �a.(� 5c r n vtrKA ) C.4 rn .0 R M r- Ln 0 L 7A 3�9*. L" V, —Z frI p lr)lj c e— (y ar .. All. IAJ 6my,d"l Cp QW AUU cr, P-M-- Cf) 'r Q M F I , 1- P4 r i-." L S "-`-'. 1 �.� *"j sO W ^4 tr 04 4r- LO I/,, U'v St.:, z -i ' 0 . APPA?V ,iBY PLAN INGING 4,.0+ of ED3,�CITY OF EDMONDS REcElvEo 121- 5TH AVENUE NORTH, EDMONDS, WA 98020 (425) 771-0220 AUG 1 11999 DEVELOPMENT CITY OF EDMONDS CTR. RCW 197-11-970 Determination of Nonsignificance (DNS) DETERMINATION OF NONSIGNIFICANCE Des tion of oposal: Construct a new single-family residence and perform related grading (City of Edmonds File PC-99-2@0 Proponent: Jeff Nelson Location of proposal, including street address if any: 16034 — 68`h Avenue W., Edmonds, Washington Lead agency: CITY OF EDMONDS The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement is not required under RCW 43.21.030(2)(c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. X There is no comment period for this DNS. This DNS is issued under 197-11-340(2); the lead agency will not act on this proposal for 14 days from the date below. Comments must be submitted by Responsible Official: Jeffrey S. Wilson Position/Title: Planning Supervisor, Department of Community Services - Planning Division Phone: (425) 771-0220 Address: City of Edmonds, 121 - 5th Avenue North, Edmonds, WA 98020 Date: &-r Signature: XX You may appeal this determination to Robert Chave, Planning Manager, at 121 - 5th Avenue North, Edmonds, WA 98020, no later than Z3 , 1999, by filing a written appeal citing the reasons. You should be prepared to make specific factual objections. Contact Jeffrey S. Wilson to read or ask about the procedures for SEPA appeals. XX Posted on 1999, at the Edmonds Public Library, Edmonds Community Services Building, and the dmonds Post Office. XX Distribute to "Checked" Agencies on the reverse side of this form, along with a copy of the Checklist. Pagel of 2 PC-99- .D I I i DOC 8/5/99.SEPA Mailed to the following along with the Environmental Checklist: XX Environmental Review Section Department of Ecology P.O4Box 47703 Olympia, WA 98504-7703 XX Applicant & Owner: Jeff Nelson 828 — 148`h St. SW Lynnwood, WA 98036 pc: File No. PC-99-237 SEPA Notebook Page 2 of 2 PC-99-1 I 1 D. DOC S/5/99.SEPA Purpose of Checklist. The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. Instructions for Applicants: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or does not apply". complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions 4Wyou can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. Use of checklist for nonproject proposals: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For nonproject actions, the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposer," and "affected geographic area," respectively. A. BACKGROUND Name of proposed project, if applicable: 6 � i ��FFtr Name of appl Address and phone number of applicant and contact person: C— Page t of 24 CHUT.DMI•NOV-93 MASTERWEA 4. Date checklist prepared: Y z 61 (� � r CIQI Is 5. Agency requesting checklist: City of Edmonds. 6. Proposed timing or schedule (including phasing, if applicable): LI NnC� t �CO 1.e55 Sj t, r—<— q C1\ 7. 8. •a (STAFF COMMENTS) Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. r10 (STAFF COMMENTS) List any environmental information you know about that has been prepared, or will be prepared, directly relate to this proposal. -1 Y\a0 t'l� (STAFF COMMENTS) Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. M (STAFF COMMENTS) Page 2 of 24 CHKLT.DOC11•NOVA] MASTEMSPEA 10. List any 1 ment approvals or permits that will be needed for your proposal, if known. (STAFF COMMENTS) 11. Give brief, complete description of your proposal, including the proposed uses and size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. .s't �� 1 .;,�: U 400 s e Z 5 ib . y 3 «� • (STAFF COMMENTS) 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your Proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide range or boundaries of the site(s). Provide legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. (STAFF COMMENTS) G,t,4 us e r-cl&zss _1-1,Q�os - i_ _m 2 _16,034 • CHKLT.D0C%J.N0v93 Page 3 of 24 MASIERWEA TO BE COMPLETED BY APPLICANT B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other: (STAFF COMMENTS) b. What is the steepest slope on the site (approximate percent slope)? -Z /r; (STAFF COMMENTS) C c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. gvoc) x-dy Soy well (STAFF COMMENTS) d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. nc (STAFF COMMENTS) Page 4 of 24 CHKLT.D=1•N0V•93 MASMR%SPEA • e. Describe the purpose, type and approximate quantities of any filling or grading proposed. Indicate source Of fill. w0� Lu ID� (STAFF COMMENTS) Zo. 3 f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. AC� — S�o•0%3aCc) 400e5 W co@(z (STAFF COMMENTS) g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? N3 s�o Mp • (STAFF COMMENTS) h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: C �-FV E roCOnAT-o1 (STAFF COMMENTS) 2. AIR a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. is (STAFF COMMENTS Page 3 of 24 CHKLT.DOL1t-NOV•93 MASTERMEA b. Are there any off -site sources of emissions or odor that may effect your proposal? If so, generally describe. Ao/\ 2 (STAFF COMMENTS) C. Proposed measures to reduce or control emissions or other impacts to the, if any: llonQ (STAFF COMMENTS) 3. WATER a. Surface: (1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. V\U (STAFF COMMENTS) (2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. (") O (STAFF COMMENTS) (3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of rill material. A�D A° - (STAFF COMMENTS) Page 6 of 24 CHKLTAOCAI•NOV-93 (4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. n� (STAFF COMMENTS) (5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. A. U (STAFF COMMENTS) (ti) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. is Act (STAFF COMMENTS) b. Ground: (1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. (STAFF COMMENTS) lie Page 7 of 24 CHUT.D000-NOVA3 MASMMSPEA (2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing th following chemicals...; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. n©r1� (STAFF COMMENTS) C. Water Runoff (including storm water): (1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water now into other waters? If so, describe. S \(5 ��Q v� Q s- t.:A-q coc' (STAFF COMMENTS) (2) Could waste materials enter ground or surface waters? If so, generally describe. i1 C (STAFF COMMENTS) d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: 4� 1— C:�J CdCI Q (STAFF COMMENTS) Page g of 24 CHKLT.DCOI-NOV-93 MA.RMWAPP.A 4. Plants a. Check or circle types of vegetation found on the site: deciduous tree: der, aOle� )aspen, other: evergreen tre fir, :ce�—pine, other: shrubs grass pasture crop or grain wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other: water plants: water lily, eelgrass, milfoil, other: other types of vegetation: (STAFF COMMENTS) b. What kind and amount of vegetation will be removed or altered? • • roc (STAFF COMMENTS) C. List threatened or endangered species known to be on or near the site. nee I0 (STAFF COMMENTS) Page 9 of 24 CHKLTA0l11-NOV-93 MAMMSPHA d. Proposed landscaping, use of native plants, or other materials to preserve or enhance vegetation on the site, if an ( )• WALM (STAFF COMMENTS) 5. Animals a. Check or circle any birds and animals which have been observed on or near the site or are known to be on or near the site: 0 A kwo &j v,\ birds: hawk, heron, eagle, songbirds, other: mammals: deer, bear, elk, beaver, other: fish: bass, salmon, trout, herring, shellfish, other: (STAFF COMMENTS) b. List any threatened or endangered species known to be on or near the site. (STAFF COMMENTS) C. Is the site part of a migration route? If so, explain. V r\ k^o'j ^ (STAFF COMMENTS) Page 10 of 24 CNKLTAOC U-NOV-93 u • —Vot coo 0 d. Proposed measures to preserve or enhance wildlife, if any: 5+r•i (STAFF COMMENTS) a 1-a+t re., ru T i 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. (STAFF COMMENTS) b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. (STAFF COMMENTS) C. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: ire e 4 \erEI Y c-�c�e Coc) e (STAFF COMMENTS) Page 11 of 24 CHUTDC01-NOV-9I MASMSPBA 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals risk of fire explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so describe. Y\0 A (STAFF COMMENTS) (1) Describe special emergency services that might be required. A ry (STAFF COMMENTS) (2) Proposed measures to reduce or control environmental health hazards, if any: (STAFF COMMENTS) b. Noise (1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? (STAFF COMMENTS) Page 12 of 24 CHKLTMMI-NOV-93 MASMMSPEA 8 (2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. 11 t,� 1M(�J.1� � tpy►�j"t f�L'�i oI� o� Ne,�J �-iow�� (STAFF COMMENTS) (3) Proposed measures to reduce or control noise impacts, if any: go (STAFF COMMENTS) ID S. Land and Shoreline Use a. What is the current use of the site and adj cent properties? �1 �1 1 c L)% -k-� �S — �15 V�cGK QCJ\'�e�n T (STAFF COMMENTS) b. Has the site been used for agriculture? If so, describe. V\b (STAFF COMMENTS) CHKLT.DWI-NOV-93 MA..gMRLCPRA Page 13 of 24 C. Describe any structures on the site. • h0 �� P (STAFF COMMENTS) d. Will any structures be demolished? If so, what? Rnn (STAFF COMMENTS) e. What is the current zoning classification of the site? (STAFF COMMENTS) f. What is the current comprehensive plan designation of the site? le'-'( IV, f P C'G 1 L (STAFF COMMENTS) g. If applicable, iyhat is the current shoreline master plan designation of the site? (STAFF COMMENTS) Page 14 of 24 cHKLT.D=1-N0V-93 i h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. • - S (op � V ec, Q-4-LX o v--, (STAFF COMMENTS) i. Approximately how many people would reside or work in the completed project? (STAFF COMMENTS) j. Approximately how many people would the completed project displace? (STAFF COMMENTS) k. Proposed measures to avoid or reduce displacement impacts, if any: (STAFF COMMENTS) 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: 1 is (STAFF COMMENTS) Page 15 of 24 CHKLT.DWI-N0V-93 MASIEMSPEA 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-incon* housing. (STAFF COMMENTS) b. Approximately how many units, if any would be eliminated? Indicate whether high, middle, or low- income housing. (STAFF COMMENTS) C. Proposed measures to reduce or control housing impacts, if any: /114 (STAFF COMMENTS) 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principle exterior buildingm((aterial(s) proposed? I Z EST kc t, J - (STAFF COMMENTS) Page 16 of 24 CHUT DC01-NOV-93 MASTER%SPEA b. What views in the immediate vicinity would be altered or obstructed? nOvAQ (STAFF COMMENTS) C. Proposed measures to reduce or control aesthetic impacts, if any: (STAFF COMMENTS) 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? • SV h�� 01 �'l� �oc- `%�.� ile vJ CY�►�� (STAFF COMMENTS) b. Could light or glare from the finished project be a safety hazard or interfere with views? Y\O C. (STAFF COMMENTS) What existing off -site sources of light or glare may affect your proposal? hov\E (STAFF COMMENTS) Page 17 of 24 CHKLT.DOCU•NOV-93 u A crnokcoc A d. Proposed measures to reduce or control light and glare impacts, if any: (STAFF COMMENTS) 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? rne,3 03 "'�c Pk0.'t , "e. L-C�) (STAFF COMMENTS) b. Would the proposed project displace any existing recreation uses? If so, describe. (NO (STAFF COMMENTS) C. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: (STAFF COMMENTS) Page 18 of 24 CHKLT.DOC11-NOV-93 MASIERWEA 13. Historic and Cultural Preservation a. Are there anylaces or objects listed on p , , or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. (�O (STAFF COMMENTS) b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. ()0 AIL (STAFF COMMENTS) C. Proposed measures to reduce or control impacts, if any: (STAFF COMMENTS) 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. ZCorA "A lAvo se (STAFF COMMENTS) • Page 19 of 24 CHKLT.D0C11•N0V-93 MASMRISPEA b. Is site currently served by public transit? If no, what is the approximate distance to the nearest transit stop? • KD (STAFF COMMENTS) C. How many parking spaces would the completed project have? How many would the project eliminate? (STAFF COMMENTS) U d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). 1, o Y` v w ��-- (STAFF COMMENTS) e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. irn— (STAFF COMMENTS) Page 20 of 24 CHKLMDOCU-NOV-93 MASfER\SPEA • f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. i© (STAFF COMMENTS) g. Proposed measures to reduce or control transportation impacts, if any: no �� • (STAFF COMMENTS) 15. Public Services a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. (STAFF COMMENTS) b. Proposed measures to reduce or control direct impacts on public services, if any: (STAFF COMMENTS) CHKLT.D=I-NOV-93 v.e+cv.¢ov. Page 21 of 24 16. Utilities a. Circle utilities currently available at the site: electricity, natural gas, water efuse service, elepho, anitary sewer septic system, other: ne (STAFF COMMENTS) b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. (STAFF COMMENTS) C. SIGNATURE The above answers are true and complete to a best of my knowledge. make its decision. Signature of Proponent • I understand that the lead agency is relying on them to Date Submitted CHKLT.D0C11-NOV-93 Page 22 of 24 MASMSPEA IAI P4 o rn R.155)rinji, -0- Isla, X o to 0;J. 7. jr ie FT. ;wresztfrGTi00w C 114 Ir 0 W op mm 'n 4 ---1- MM r-n AVC. D 024W mm Td WdBZ:ZO 666T ST int 'ON 3NOHd W081 STANDARD DRAINAGE DETENTION SYSTEM' WORKSHEET OWNER �J �- �� L=, t.-`; °�.-' CALC BY: ADDRESS 1 PHONE: �� -)4�� Coz-- �; R " LY fJ v L v .✓ c I J CW � 7 �-i l✓ I I t�� 1���: ; 1 DATE: *****DESIGN DATA***** IMPERVIOUS AREA PIPE DIA PIPE LG ORIFICE L-A--T � -S t? DETENTION PIPE LENGTH LOCKING LID (TYPICAL) FINISHED G MINIMUM UCCLL qq AAMCEEOPTIGHTLI E MEASREOF .5% TO 1% SLOPE CONC BOX OR RISER 0 OUTLET OUTLET CONTROL �9MIN. ` --OaaRIFICE UPPER CATCH BASIN CONTROL CATCH BASIN LE SYSTEM CROSS SECTION RECEIVED .;UL 19 1999 2'X2'X6'•DEEP, 4-6' SPACES OR EOUAL FROM CONTROL CB 2'X 2'X 3' DEEP, 3/4' CRUSHED ROCK EXISTING GRADE DEVELOPMENT SERVICES CTR. CITY OF EDMONDS 'i tr? FROM CONTROL OUTLET '• WASHED ROCK OUTFLOW TRENCH MIN 10' LONG. .5, PERF PIPE TO BE LEVEL PERFEE PIPE W/ END CLAPS PRIORHTOHPLACEMENTNOF WASHEDIDRAIN ROCK R/PRAP OUTLET RUNOFF SPREADER -TRENCH FOOTING DRAINS SHALL NOT BE CONNECTED 710 DETENTION SYSTEM NOTES: Pl- 1. Call Engineering Division (771-0220) for a tightline and detention system inspection APPROVED BY before backfilling and for final inspections. 2, Responsibility for operation and maintenance of drainage systems on private property is the responsibility of the property owner. Material accumulated in the storage pipe must be flushed out and removed from the catch basins to allow proper operation. The outlet control orifice DATE must be kept open at all times. -0- Table 1 — Detention Pipe Sizes Impermeable Required Area Sq. Ft. Vol Cu Ft 2000 50 2500 62 3000 75 3500 87 4000 100 4500 112 5000 125 Note: Allowable Pipe Materials: Impermeable Area Sci. Ft. 2000 2500 ' 30,00 . 3500 4000 4500' 5000 Pipe Diameter 15" 18" 24" 30" 40 28 16 10 50 35 20 13 60 42 24 15 Required pipe 70 49 28 18 length in feet 80 56 32 21 90 63 36 23 100 70 40 25 Reinforced Concrete Aluminized Steel Aluminum CMP Asphalt Coated N-12 ADS (Not permitted on roads) Table 2 — Outlet Orifice Sizes Outlet Orifice Diameter (Inches) 5/8 5/8 3/4 3/4 7/8 7/8 7/8 Table 3 — Rectangular Catch Basin Requirements Detention Max. size Catch Basin pipe diameter knockout Type < 18" 20" Type I, CB 15 18" to 24" 26" Type IL, CB 16 24" to 36" 36" Type II, CB 19 19 (48" Basin) 36" to 42" 42" Type II, CB 19 19 (54" Basin) *Source: Assoc. Sand & Gravel Co. Standards 5 Revised 3/16/95 \ S. 'TE 14E-1C H7' CAtC� LOT ')O>~ %Wv A 'fAy.I C l r'f OF L a LA01410.'� r -1 mi . I& SW0%4Ot`41Zbi GO..W/b C `ily.t fi 416.$ re*r,%1[.1i.nC��l 25.00 v••l9.) S n.c,�— w � S-f"o��� 22c� • 3� cam- ��s• 3 —� 3 o d O 145.11 '' L _ t7 s o ,o ll OC4 Qwlt ? -_ '� 1 y w IL 0 s M to v4\3 L� _.— ------ -- —oTi` — �� — RECEIV D .o -' t *Gess s urt�t cr -4 'Yf DEVELOPMENT SERVICES CTR. t �_ ' �� ` • , CITY OF EDMONDS FT III it-6 JEFF i WEMOY MELSOK1