Doc0009.pdfINSPGNI INGMEENING CO
JoAnne Zrflauf
121 50 Avowe US
Urnonds, WA 9802(t
(42 x) 77 1.0220
Ron Pmvdke Lane
No. 16-0768
Dcar JoAnne.
FR ES U B
AUG A? 3 �2 011
SEPARMAgwr
Y�'1'111-- EMMONS
A Ln-YUSt 18. ?1.11 (a
Ile project referenced above is revised On response to the re0c" comments dated August 3.
20 16. Ile revWxy cornmcnts am numberned on the lcticr arid have heen addressed in ifalic.s as
WOWS:
PI.A.N' REVIEW (-'ON1N1EN1'S:
(76itical Arevy, Sypy!
I bank )vu Ir providing the geoteclurical report dated May 6, 2016, The sub ' Met she conwirrs
and is adjzicern to as skTe Mwat is swep errongh to he conskiered Nodi as I,andslide I lazard Area and
It-osion I lazard Area as defirred within the W -ponds Onnimmity We[opmem (We (ECDU)
(laiptem 23AO and 23AT please provide an Ukriduin to the geotcchnical report to address the
rnininiurn setback distance per RW 2180WOK I and Me criteria listed in I UX'
2181074EA3 and 23A4t.O71LAA.
See
lot co"iSAnalLIiL
Lot coverage is defined as the total gnuind covcmge ofall buildings or structures on as site
ismsumd hurn the otaside of Merrial walls or supporting members excluding as maxirtlurn of'
:HCl- of eaves and decks over 30" in licighl, 'I Ile she rdan shows as hot oAvmige area of 2394
1CIU(IeS dre hoiNe and rul the attachcd
square fect. providing lot coverage of2T4%1 'flailonlwn
deck. Ple;asc update the lot coverage calculations to include the dcck area.
Set, t,e I, [(,(/ .� ate t)hln,
14eiallit C'alculations: please uralke the H lowhig corrections on the she plan and IS klings blas:
PC) Box 1478 , Everett, WA 98206 * Phone: (425) 303-9363
Fax: 025) 3030362 * EmQhrKo@WsQNeyWreeQgvet
.. . . . . ......
• A datun"i point is needed in accordance with the city's height calCUI,10011 int'(4111atiOn (See
attached height calctikations handout)
• The 1bur cmer elevation l%us need to be established in accordance with the CaIICUlati011
handout.
• PIan lAevations: 111case note tUt w1h potW01 &1ugCS in the 11601t CdlCLlh1fl0uS (In s0111'
site plan )ou will need to revise the plan cKakin shect (sheet Al ) ac"w1noy to march
the Updated height information.
See revi.sctisac /Vary Bent4i in ark So hem slunm on We Id an to thount Anyahm,
She Plim.
I The Q or she pin needs to show the location WWI tic MTjosed utilhies (;i.e.
waiter/sewer) and storinwater systern (WHImion) brat does not need to include the details
(length, size. etc.),
.411 todaks I= heovAown on OW she Ph"I
2. Pleasc note the Wmance between the propert) Hne and the nearest nre h.wdrmu.
Refer to note "2 on the she I -Von.
I Add me to pins "Side"alk is suQVct tea replacernern depenfrig on edming comllion or
darrutge. I o he dommined by Ln.ginecring Inspcoor on she",
Rqler to) imic li / ("m thesilc lVan.
4. 1 Oder Impervious sudke cartes limp (med I lome is mm) to have 2394 A under W
Coverage it is also, noted as 2394 sf please revise as needed.
The ImTosed faywrvionni siTAmv tuva of the home is 2_394SF Rclt;,r to the 1-01AW OC
Ilan 7he hv amumWe W&A home aml d"* twoo,
5. Labcl inliltrationi trench,
,I eb1mvii k mn, priqnhwul: a bhel lues been inhhti
6. Renrove clean Out. note regarding cast Non lamphole cover.
( tibia liars been renroveel
7. Please show the sewer easm-nent on the plan and note casement rel"Wrence nurnbCT.
Sels Cr ca�emcnl has hicen .Owuw,
(,;i-ading and TESC Plan
PO Box 1478 # Everett, VVA 98206 , Phone: (425) 3059363
Far (425) 3059362 * Eliailinfo@itisigtitenguneering.net
.... . .. ... . . ..... ..... .......
(acre is as niaHbox c I us(cr NN' 10 1 three boxes in the propert), fronui,pc over the �vater
nicters. 'I hef-C are no nnallbc)xeson \,our plans. kcv1se kNith \dialcvcrthe plan is for
then").
11n, cxisling 171(jdho'V locoliml m'ld wotcf� 111clel. 1,011 a-eiimiiti wid will be ttsedjbi� the
e.vistillg honw.
9Femp construction entrance is, not shown on the property,
A teltipm-ori, (,tili'anec htis beco,4towti.
10, Provide top and toc elevation fior the northwest end ofwffl,
Ac top (ind we ch,wiliotis have becti Yhonvi.
I, General Notes: Change 2() 10 WSDOT to 201 6.
1,,Pdate htis becti mucle, See C2
Slogimater Report C.onsultapt Review Comments:
I.'I he Infiltmtion 'Trench Sizing report (5/16/16) is missing the 0011 "in infOrniatiOn:
Project category (Catet,,,( ry I Small Site Protect)
Dminage hasin/Watershed manic
c. Narrative descrif.-)ing ho" each Ofthe StMfll Site Mink"Mull RC�jLJ1-Cn1C11tS k\ ffl be
Met.
The iqy'?roac17jop- a di'vtvefl has beell pt,opo'scit to th"
I-evised phirls elfid repol-lfi)l- )noix, ill1olwifitiol'?,
2. The applicant has the option to select the City's Simplified Si/.Mf2 Approach ot, perform
continuous rnodelingUsing, the City's Simplillicd Sizing Appro,,ich, a 1.81'x) sizlru.a factor
VWUld be applied. resulting in as 60 -loot lora-,, 2 -foot k\idc, and 1-6)ot deep infiltration
trench for the 3,.+56 Sl' c)f iri'qm-vMous sur Plice area. Fhe applicant Chose to perlbrili
continuous modeling an(] has proposed as 13.25' + 1.i,25' x 4' intjitration trench:
however. there aj�e several errors and sonic additional clarification needed regarding the
proposed modeling approach its sunirmari/,ccl helow:
a. ']'lie 'WAVI INI'l Oknl)L1t report (5/11/16) ifICILOCd \vith the 5/M/1 6 SUbMitt,11 USeS OIC
E\, crett Ral n (Jag,,c kw it h as 11rec i 1) Scale I lie l:(:jjjj()ji(jS Stort'n water
SLtpj)1CMCut requires the USC Oftl'IC PLJ,Ct F,ast 36 rain tgage which can be selected
b\checking "t Ise WS -D( I )Tdata" on the -10ap Infornialion" tab in 'NWJ IM,
'Sa'e to commew #1.
h. fl,e geotcchnical report (5/6/I6) lists the s'ofls as hydrologic &M -01.1p B; however,
t
IiStS t�je Soils as &"r()j1p
he W\Vl IM OUIPUt report (5,111/1 6) " I
PO Box 1478 # Everett, WA 918206 - Phone ' i (425); 303-9363
Fax� (425) 303-9362 - Eriiail��tifo@lt,tslgihtengineerinig.riet�
WWHM OLI(PUt 1-CP01"t aISSUMCS ifli-110116011 through the Nveacd surl'ace area, DUC
to the vertical .side slopes, ini-iltration should be assumed across the trench bott(All
only (t lse woted surfiacc area no-)
Se c (A's t s car' I o ( '0 r III Ine ti I 4 r` I ,
c. The porosity in the aggregate laver was assuiried to he OA (or 409,'O')T"'pical
agi.,,,,regalc layer porosities Ond the porositN used in the sizing toot for
the 0tv) is 03 (or
SCC (117SWC1, 10 COMnIcIlt !"L
d. The proposed itiffltration trencl-i does not include ,,m (,-ivcrtlmw sti-LIOW-C. Elven
thOL15-1h the trench is designed ror 100"/i) iflflfltf-afion. rasa OV0110VV AR.IctUrC ShoUld
Mill he ach. Assumptions inacle tor the riser.
11 '1CCOL111ted for in the modchng appro,
strUOUIV 10 SkI[II)MI the Simplified sizing tool fOr the City included:
i. Riser heid same as height oftivneh
ji. Riser diameter = 3)() inches
i6. Notch heiuhl -. not applicable
iv. Oril'icc licight/diarneter = not applicah1c
L'Iffec6ve total depth - height 4trench 1 0. 1 ' freeboard 1'(.,)r LMCOwrollcd
ovcrfloww above the top of the trcnch
Sec atm,1'er to carts mew -,"L
Please indicate an overflov, path on Sheet C'2 (Stornw,atcr and Utilit% Plan. 5/25/ 16) and
Provide
JUStil'ication in the rep ,)rt narrative that 1-U110fTdh()Ve the in4tration trench dicsiun
capacity will 110t C'UISC'.
a. Hooding ofa building or emergency access
b, [.'-.rosion or downstrcam sedimentation
c, Slope, Cadure
117e ovcr�flovv i,w (11y)),oximellelY 20 'fiwln the j)roj)cr1Y hown(lar.r. No th-aaitiage i,w�
finticilmled lo leer v the viic, us the .viie cowt,iitt� smbwit4ible,10), irifiltrotion,
4, Note 43 (,,)n Sheet C2 (Stormwater and UtilitN Ph,,.m. 5125,116) should lie modified as
f'ollows:
All disturbed pCIA iOLIS SlffftWc areas shall be ccm,q)ost amended per RM P '15, 13,"
Notc, �3 hus been
Storumaterand lffifity Plan
12. Add j111l.1CtWiO1JS SUO"'ICC Ca1CLdafiO11S tO this sheet.
The calculaliolls have, been ("uhlet/.
PO Box 1478 # Everett, WA 98206 # Phone. (425) 303-9363
Fax (425) 303-9362 # Emailinfo@insughterigiririiiig net
I "i. Pror)osed deck is not included in the iMPS-ViOUS SUH'aCe calcukations, IfIVI'viOLIS ssith
dil-1/1!1-aSS Underneath. acme add note. If not. add to impervious starIace CaRLdations.
See callour
1? Foodng drains are tvquixed by the gaAech. Wi We plans they arc slumn ccminecdng to
the skwrn s} stent, Please convey to anoler so sterna or pmvkk a rcvkkn to Be Monn
report shoming that the system has capacity to hand1c them.
1110,fiMlin,sZ Will bi" contlecicel to a dispetion trcnch loctited ori the not-thei-tt
poi -tion qfthe '0c
15. Where wHI retahhng %vaN lbodngs be tamnecling!
7he nwrining wall finning dt'aias will be col"Inecled to thea roo/ th-ains ofthe honie to be
cowlecled it) tilt, di'vive/l,
16. 1 Iovo "'ill lltnoff he MOM thrn We d6vesway and sidewalk/stairs he collected and
directed to the infiltration s)steni?
11roposed.yal-il draW "Ili CW/lea the riawpftotn Me (h1vewqv and tralkwe-tvs, Refi:,r lo
Clic i•cviseoiplan,/or tnom iqlbiawtion.
17, Add length ofstunn pye and an Oven :a that house and the trench.
Ilipc lerigilts and hnv" elevations ham been InwNhut WTI ai the ownch it shown mi
WWI 202,
18. A 6- gated Man our is Wed ow For Be infiltration trench. Is this intentional?
(ir undwamr is ruA accourged for in the SiA[1U11CUlatiOnS.
,4 (11"'AlVCH is now proposeet
11). Infiltration trench derwil TC2 has 6- of ('SI3(' kthel poimhg to ma p of uotch. PI arse
Wt's- the exact area that flICCrUshed sh(w1d be and rune Wt the rernaking 6- should he
compost arnemkd sail if R is to he pWnwd "kh anything.
\",A A t/rIvIvell i'� no 11, plwpoSC4 1,
21 Water meters are shown as existing on this aan. Call out sire ol'saier meter and shoNN
as proposed H'there is only a rneter hox and no nicter.
( idloul has been shomit, 14ater tneterfielo' ret-ifieut
PC) Box 1478 * Evemtt, M 96206 , Phone: 025) 3UN9363
Fax: 025) 3019362 # Ernail unfo@ir*ghtengineehng net
21, Add to notes sect ion: ()Itopic View Water Sewer District is purveyor ol'water for this
site. Water meter and service location shall tic rcoie\ecl and approved b'+,,(,)V\N'SI) prIM,
to construction.
Re
lct- to note 7 on sheet C2,
21 Add sevver eascmcnt on this sheet too.
Sewer eus:emenl hu,s I'ven, Shoti'm
23. Add 6" clean oul at edge of, C"isellient. Fhis Cleall out needs the cast iron Uiiplioe cover.
A 6 " cleunout hus he mleleol ut the (,4t��e of1he eawinent Cost iron ImnlViole covei'
calloui hos been inclmletl.
24`Fhe clean (:)Lit at the lio Use, does not require to cast iron lartiphole cover.
( 'oullnen/ noletl
25. GJ11 OLII 6" pipe 1"rom main connection taa edge of'easement. Private service can be 4"' or
6".
( 'allout kis been iuhle(l
26Add lengths to each section of pipe,
The k'ngth's 0/ coch Ifil)v has he n, aeloce I
27, Add elevations at Maill ,ind hoIll (11C ClCa,'Jjjojjj at tile CaISeITICM edge Jlld at the 11o)LISC to
vent'y 2?,/t) slope.
Invert elevation hi'ive becti uthletl.
28, Add standard detaH I'm- sewer cortiledw.
Phar slunclani,seli'O' Connectiori (letoil hac hver�whicel
Ra easc feel t"ree to contact nic \Nith any questions or ca„ minents )'OU 11111)� have.
sirlcuely.
SaIllhosh Nlo)AINIL