HomeMy WebLinkAboutStormwater Plan for COM2014-00003 - PLN General - 1/2/2014 Mason County Review Checklist
For a Stormwater Plan
Instructions:
This checklist is intended to assist Staff in the review of a Stormwater Plan. The Stormwater Plan is
reviewed for completeness with respect to the 2005 Department of Ecology Stormwater Manual. If an
item is found to be not applicable, the Plan should explain the basis for the conclusion. The Plan is also
reviewed for clarity and consistency. If the drawings, discussion, or recommendations are not
understandable, they should be clarified. If they do not appear internally consistent or consistent with the
application or observations on site, this needs to be corrected or explained. If resolution is not achieved
with the author, staff should refer the case to the Planning Manager or Director.
Applicant's Name: LC6yaz*L44
Permit#_ 16.a U lq `0000 3 Parcel# �� " � 4 -, C0 Lqd
Date(s) of the Document(s) reviewed:_ / ` Lf
SECTION I—Construction SWPPP Narrative
(1) Construction Stormwater Pollution Prevention Elements:
(a) Describe how each of the Construction Stormwater Pollution Prevention Element has been
addressed through the Construction SWPPP.
OK? Comment:
(b) Identify the type and location of BMP's used to satisfy the required element.
OK? Comment:
(c) Written justification identifying the reason an element is not applicable to the proposal.
OK? Comment:
(d) 12 Required Elements—Construction Stormwater Pollution Prevention Plan
(1) Mark Clearing Limits.
OK? Comment:
(2) Establish Construction Access.
OK? Comment:
(3) Control Flow Rates.
OK? Comment:
(4) Install Sediment Controls.
OK? Comment:
(5) Stabilize Soils.
OK? Comment:
(6) Protect Slopes.
i OK? Comment:
(7) Protect Drain Inlets.
OK? Comment:
(8) Stabilize Channels and Outlets.
OK? Comment:
(9) Control Pollutants.
OK? Comment:
(10)Control De-Watering.
OK? Comment:
(11)Maintain BMP's.
OK? Comment:
(12)Manage the Project.
OK? Comment:
Page 1 Form Effective May 2009
(2) Project Description.
(a) Total project area (acres/square feet).
OK? Comment:
(b) Total Proposed impervious area (acres/square feet).
OK? Comment:
(c)Total proposed area to be disturbed, included off-site borrow and fill areas (acres/square feet).
OK? Comment:
(d) Total volumes of proposed cut and fill (cubic yards).
OK? Comment:
(3) Existing Site Conditions.
(a) Description of the existing topography.
OK? Comment:
(b) Description of the existing vegetation.
OK? Comment:
(c) Description of the existing drainage.
OK? Comment:
(4)Adjacent Areas.
(1) Description of adjacent areas which may be affected by the site disturbance
(a) Streams
OK? Comment:
(b) Lakes
OK? Comment:
(c)Wetlands
OK? Comment:
(d) Residential Areas
OK? Comment:
(e) Roads
OK? Comment:
(f) Other
OK? Comment:
(II) Description of the downstream drainage path leading from the site to the receiving body of water
(minimum distance of 400 yards).
OK? Comment:
(5) Critical Areas:
(a) Description of critical areas that are on or adjacent to the site.
OK? Comment:
(b) Description of special requirements for working in or near critical areas.
OK? Comment:
(6) Soils: Description of on-site soils.
(a) Soil name
OK? Comment:
(b) Soil mapping unit
OK? Comment:
(c) Erodibility
OK? Comment:
(d) Settleability
OK? Comment:
(e) Permeability
OK? Comment:
(f) Depth
OK? Comment:
(g) Texture
OK? Comment:
Page 2 Form Effective May 2009
,
(h) Soil Structure
OK? Comment:
(7) Erosion Problem Areas.
(a) Description of potential erosion problems on site
OK? Comment:
(8) Construction Phasing.
(a) Construction sequence.
OK? Comment:
(b) Construction phasing (if proposed).
OK? Comment:
(9) Construction Schedule.
I. Provide a proposed construction schedule
OK? Comment:
II. Wet Season Construction Activities
^� (a) Proposed wet season construction activities.
V" OK? Comment:
(b) Proposed wet season construction restraints for environmentally sensitive/critical areas.
OK? Comment:
(10)Engineering Calculations. Provide design calculations.
(a) Sediment Ponds/Traps.
OK? Comment:
(b) Diversions.
OK? Comment:
(a) Waterways.
OK? Comment:
(b) Runoff/Stormwater Detention Calculations.
OK? Comment:
(11)Operations and Maintenance
(a). An operation and maintenance schedule shall be provided for all proposed stormwater facilities
and BMPs, and the party(or parties) responsible for maintenance and operation shall be
identified. An operation and maintenance (O & M) Declaration of Covenant will be required to
cover all privately owned and maintained stormwater facilities. O & M Declaration of Covenant
forms are available at the Mason County Permit Assistance Center, 426 W. Cedar Street,
Shelton, WA 98584. The proponent shall record a copy of the completed Declaration with the
epk
� ° 1 Mason County Auditors' office. A copy of the recorded document must be submitted to the Permit
Assistance Center together with this completed Checklist.
OK? Comment:
SECTION II— Erosion and Sediment Control Plans
(1) General.
(a) Vicinity Map.
OK? Comment:
(b) Clearing and Grading Approval Block.
OK? Comment:
ell (c) Erosion and Sediment Control Notes.
OK? Comment:
(2) Site Plan.
(a) Legal description of subject property.
OK? Comment:
(b) North Arrow.
OK? Comment:
Page 3 Form Effective May 2009
,
(c) Indicate boundaries of existing vegetation, e.g. tree lines, pasture areas, etc.
OK? Comment:
(d) Identify and label areas of potential erosion problems.
OK? Comment:
(e) Identify any on-site or adjacent surface waters, critical areas and associated buffers.
OK? Comment:
(f) Identify FEMA base flood boundaries and Shoreline Management boundaries (if applicable).
OK? Comment:
(g) Show existing and proposed contours.
OK? Comment:
(h) Indicate drainage basins and direction of flow for individual drainage areas.
OK? Comment:
(i) Label final grade contours and identify developed condition drainage basins.
OK? Comment:
Q) Delineate areas that are to be cleared and graded.
OK? Comment:
(k) Show all cut and fill slopes indicating top and bottom of slope catch lines.
OK? Comment:
(3) Conveyance Systems.
(a) Designate locations for swales, interceptor trenches, or ditches.
OK? Comment:
(b) Show all temporary and permanent drainage pipes, ditches, or cut-off trenches.
OK? Comment:
(c) Provide minimum slope and cover for all temporary pipes or call out pipe inverts.
/J OK? Comment.-
d) Show grades, dimensions, and direction of flow in all ditches, swales, culverts, and pipes.
Q, a OK? Comment:
(e) Provide details for bypassing off-site runoff around disturbed areas.
OK? Comment:
(f) Indicate locations and outlets of any dewatering systems.
OK? Comment:
(4) Location of Detention BMP's.
(a) Identify location of detention BMP's.
OK? Comment:
(5) Erosion and Sediment Control Facilities.
(a) Show the locations of sediment trap(s), pond(s), and pipe structures.
OK? Comment:
(b) Dimension pond berm widths and inside and outside pond slopes.
OK? Comment:
(c) Indicate the trap/pond storage required and the depth, length, and width dimensions.
OK? Comment:
(d) Provide typical section views through pond and outlet structure.
OK? Comment:
(e) Provide typical details of gravel cone and standpipe, and/or other filtering devices.
OK? Comment:
(f) Detail stabilization techniques for outlet/inlet.
OK? Comment:
(g) Detail control/restrictor device location and details.
OK? Comment:
(h) Specify mulch and/or recommended cover of berms and slopes.
OK? Comment:
(i) Provide rock specifications and detail for rock check dams.
OK? Comment.-
Specify spacing for rock check dams as required.
OK? Comment:
Page 4 Form Effective May 2009
(k) Provide front and side sections of typical rock check dams.
OK? Comment:
(1) Indicate the locations and provide details and specifications for silt fabric.
OK? Comment:
(m) Locate the construction entrance and provide detail.
OK? Comment:
(6) Detailed Drawings.
(a) Any structural practices used that are not referenced in the Ecology Manual should be explained
and illustrated with detailed drawings.
OK? Comment:
(7) Other Pollutant BMP's.
(a) Indicated on the site plan the location of BMP's to be used for the control of pollutants other than
sediment wash e.g. concrete h water.
s
OK? Comment:
(8) Monitoring Locations.
(a) Indicate on the site plan the water quality sampling locations to be used for monitoring water
quality on the construction site, if applicable.
OK? Comment:
Are the Documents signed and stamped?U�Type and #of License: `V L_ ac�k I (�� 5-7 l
If not approved, what is the next action/recommen ation for further action?
L�
Reviewed by on
Time spent in review:
SECOND REVIEW/ UPDATE:
Reviewed by on
Time spent in second review:
THIRD REVIEW/ UPDATE:
Reviewed by on
Time spent in third review:
Disclaimer: Mason County does not certify the quality of the work done in this Stormwater Plan.
Page 5 Form Effective May 2009
Mason County
Construction Stormmnter Pollution Plan Submittal Checklist
—2 1
Project Name: (A�r101,h� �i< i�cldi��y � '�,�'tifyr�
Parcel �7 q2I? --�xz —rPs R6
Comity ProjectNo.:
Att hor of Report: /'✓Z_
Minimum Reauirements of the DOE 2005-Stonnwater Manual
The Stonnwater checklist identiGec the niuumnunrequiremtetvts oftlte DOE 2005 Stonnwater Mamial
Me Checklist is nitetxled to identify the locations within the plan that addresses the nifi nmun
requirenter ts- Mason Coimty w ill not petfonn a technical evahtation of the submittal Rather,the
checklist provides a guide to albw Mason Comity to review the sttbntittalarxl detennim iftic applicant
bas addressed the mtininuun feats •es that make tip a Stonnwater pl--ui
It is inctunbent upon the applicant and his/her emi�reer to fitlfiA all the applicable requireniettts of the
2005 Stonimcater Plan as it relates to the proposed project. Review by Mason Comity is untended to
deteniiav if the plan1w addressed the nunninunrequnements.Applicant's ei=ieer shall be re.poi-Bible
for the technical acctu,icy of the subnutted Stonnwater plate
Dtuing construction of the project,the stonnwater plan enguaeer ofrecord or hisAvr authorized
representative sl-tll i-spect the site to eritre the stonnwater plan is beitg nnplemeded as desigmd.Upon
completion of the project,the enitineer or his attthorized representative shall be required to certify t1vat the
stonuwater plan has been unplemernted as designed.
Fathre to meet the munintun requremtents could result iri delay or rejection of the application until t1V
deficiencies are corrected.
Section I—Construction SWPPP Narrative
1. Construction Stonmwater Pollution Prevention Elements
''be how each of the CorrAlirtion Stonnwater Po llittion Prevention IIement.has been
�a. Desc
addressed though the Cowtntctnn S WTPP.
. Identify the type aril location of BMPs used to satisfy the required element.
J C. WrYtten justification idetsfi�,ipg the reason an eleinernt is not applicable to the proposal
12 Required Elements—Construction Stonnmter Pollution Prevention Plan
�/1. Mark Clearing Limits,See page/parga -,pli Fa: �,�� �yARRx�-rr�g 551. still�z
./ 2. Establsh ConstrlrtionAccess,See page,parnagraph d"Tgr s",n aexz,:t
fj 3. Control Flow Pate`,See page:`paragnaph A
�;4. Install Sedinent Controls,See page/p,,u=. aph
5. Stabilize Soils,See page'paraginph
I!,Conninuiky D evelopn ent,PAC`�STOPI�.nv ATER 1 of 5 Updated Miy 20,2009
l 6. Protect Slopes,See page`paragraph
Protect Drain Inlets,See page/p u=uph
8. Stabilize ClnmuvLq and Outlets,See page/paragraph 01/
9. Control Polktants,See page/pamgr-aph 41
/ 10. Conhol De- Watering,See page/paragraph
% 11. Maintain BM Ps,See page/paragxaph Al
122. Manage the Project,See page/paragraph .�
2. Project ct Description
a. Total project.area. AcresO:S�3 =' Sq. Ft
b. Tota I proposed impervious area. Acres 61,37 A,-:5 Sq. Ft. Ii!OO
✓c. Total proposed are to be dirt wbed,imkided off-site borrow arxlfitl areas.
Acres &Y3 Sq. Ft 7316 :'
%d. Totalvohnues of proposed cut andfilL Cubic Yards
3. Existing Site Conditions
L� Desciiptionoftlie eYi,tirV topogr-apiny. Seepage/paragraph 5�O / 41--
" :b. Description of the exFtim vegetation. See page/patugruph
�c. Description of the existir*(h-airkmge. See page/paragraph
4. Adjacent Areas
I. Description of adjacent areas tliat nnay be affected by the site dit bance
a_ Strean�.s, See page/paragraph
b. Lakes,See page/paim,mph
C. Wetku-ids,See pageparap-ph
d. Residential Areas, See page/paragraph
e. Roads,See pageparagraph
_1,/f. Other,See page/pai=n,ph 5�f ;; 1--3 Or g—r�T.mSaw
II. Description of the dowrisheani drainage path leading from the site to the receiving body of water.
(Minni mai distance of 400 yards),See page/paragraph
3. Critical Areas
a. Description of critical areas that are on or adjacent to the site.
See pageparagraph
b. Description of special requirements for working in or near critical areas.
See pagepaiagraph
I i,Congrnnrty Developmeit`•,PAC',STORN-n ATER of i
Updated May 20,2009
6. Soas
Descr�ption of on-site soils.
a. Solrnnie(s),Seepage/pmpaph
_b. Soil mapping ut 4 See page/paragraph
c. Erodibility,See page/paragraph
d. Settleability,See page/parasaaph
e. Penneability,See page/puagraph
_f. Depth,See page/paragraph
—g. Tettine,See page parwraph
_li Soil Stiucttne,See page/paragraph
7. Erosion Problem Areas
Description of potential eros ion problem on site. See page/par-agrnph
8. Construction Phasing
-*—/a. Comt action sequence,See page/paragoaph � Z -57--f" Arm
b. Corashuctionpl-asiag(ifproposed),See page paragraph
9. Construction Schedule
_I. Provide a proposed constructionschedule,See page/paragraph
II. Wet Season Comttuction Activities
a. Proposed wet season conduction activities,See page.-patagraph
b. Proposed wet season conductionrestrai-its for ernirornivi tally selritive,critical areas. See
page/parapuph
10. Engineering Calculations
Provide Design Calculation.
a. Sediment Porxis/Maps,See page/paragtmph
_b. Diversiprv,Seepageparagraph
_c. Watem ays,See page/paragraph
d. Rum Stonuwater Detention Calculations, See page/paragraph
11. Operations and Maintenance.
Ari operation and rttaittenance schedule sIAI be provided for al proposed stonnwater facilities aril
BMPs,and the party(or pasties)responible for maiatenmice aril operation s1mllbe identified.An
operation and maintename(O&M)Declaration of C.overmnt wA be regtmed to cover all plivatet,
owned aril mvrrtained stoiniwater facilities. O&M Declaration of Covenmit fomr are available at
the Mason Cotu-AS,Permit Assistance Center, 426 W. Cedar Sheet,Shelton,WA 98584. The
proponent shall record a copy of the completed Deckaation with the Mason Comfy Auditors' office.
A copv of the recorded document nnist be submitted to the Pennit Assistance Center together with
this completed Checklist. See page/paragraph
I •,ConummikyDevelopmeitTAOSTORNMATER 3 of5
Updated May 20,2009
Section II—Erosion and Se dime nt Control Plans
1. General
a.ti'iciniy Map,See pagerpalagraph )�J �rs� d ir-� Z
_b. Clearing and Cnading Approval Block,See page/paragraplr
�/c. Erosion and Sediment Control Notes,See page/�aragraph
2. Site Plan
. Legal description of subject property
.North Arrow
✓c. Indicate boixilaries of existim vegetatiorB,e.g. tree lilies,pasttae areas,etc.
✓d. Identify and label areas ofpotential erosion problems, See page/paragraph
e. Identif)-any on-site or adjacent surface waters,critical areas and associated btflers
f. Identify FENLk base flood bouridaries and Shorelity Management botrxl<aries(if applicable),See
x page;pataglaph
g. Show e::istiog aril proposed contotrs
h hxlicate dlai-iage basim and direction of flow for ixlnvidu al dm=age areas
i Label final glade contotns and identify developed condition drainage basin
�j. Delil �te areas tlt are to be cleared and graded
k. Show all cut and fill slopes indicating top aril bottom of slope catch Hies
3. Conveyance Systems
Desig-kite locations for swales, interceptor trenches,or ditches
. Show alltemporary and pernkment di-,mmge pipes,ditches,or cut-off trenches required for erosion
aril sediment control
c. Provide nunilmtrm slope and cover for all temporary pipes or call out pipe hveits
d. Show grades,dimensions,and direction of flow in all ditches,swales,cuhrerts,and pipes
_e. Provide detail`for bypassing off-site runoff arroLmd disturbed areas
f. Indicate locations aril mtlets of any dewatering systenks
4. Location of Detention BMPs
a. Identify location of detention BMPs.
5sion and Sediment Control Facilities
7Slow the locatiow of sediment.tap(s),pond(s),and pipe stiuctures.
b. Diuensionpond benmwidtl-B and ikide aril outside pond slope:.
c. Indicate the hap/pond storage required and the depth, length, aril width diuera`iorr.
I Provide typical section views though polxl and outlet structtre.
I-Toninuul rDevelopmeit`rPAC"wSTORltitvATER 4 of 5
Updated May?0,2009
e. Provide typical details ofgravel cone and standpipe,and/or otherfilteruig devices.
f. Detail staabilim ion teclaiiques for outlet'mlet.
g. Detail condoV restiictor device location and details.
61 Specify nuAch and/or reconunended cover of benws and slopes.
i Provide rock specification s and detail for rock check dams.
j. Specify spacing for rock cl eck danv m requied.
_k. Provide fiont and side sections of tSTical rock check danvs.
_1 Indicate the locations and provide details and specifications for silt fabric.
in, Locate the conduction entrance and provide a detail-
6. De taiile d Drawings
a. Any strueft al practices used that are not referenced ii the Ecology Mal-AmI should be explaiied aixh
ilkt t rated with detailed drawn s.
7. Other Pollutant BnlPs
a. Indicate on the site plan the location of BMPs to be used for the control ofpolkrtait other ti-mi
sedinent, e.g. concrete wash water.
8. Monitoring Locations
_a. Indicate on the site plan the water quality saniplu-g locations to be tamed for i aito im g water quality
on the constnxtion site,if applicable.
I ceit.i�-that tive stonnwater pIm subird ted for this project.fidfills the applicable prov is ions,of the 2005
DOE Stonnwater MaimA
Date
I,YG{'ljl.D�YIPi{' �2GiN121' 12/30/2013
Applicant Date
Phce eug.sturp and sipi'date above.
I:,cmininuritc.•D ev elopuiel t`•PAC'�STOn-B.N'ATER Upclhlted May 20.2009
of