HomeMy WebLinkAboutMEP2004-00083 Retention Pond - MEP Permit / Conditions - 1/26/2005 ter......
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CO0N-STATFo MASON COUNTY
o P A o N DEPARTMENT OF COMMUNITY DEVELOPMENT
o TNU Z Planning Division
7 N Y ti P O Box 279, Shelton, WA 98584
1864 (360)427-9670
MASON ENVIRONMENTAL PERMIT
January 26, 2005
CHESTER A LOUDIN
1980 OLD BELFAIR HIGHWAY
P.O. BOX 2326
Parcel No.: 123174190070
Issued: 1/26/2005
Case No.: MEP2004-00083
Project Description:
Construction of a storm water retention pond and widening of an access road within a
Category II wetland buffer.
The following critical areas are present on this property:
Long-Term Commercial Forest FWHCA
Ch. 17.10.060; Ch. 17.01.110;
Mineral Resource Lands Frequently Flooded Areas
Ch. 17.01.066; Ch. 17.01.090;
Inholding Lands Landslide Hazard Areas
Ch. 17.01.062; Ch. 17.01.100;
X Wetlands Seismic Hazard Areas
Ch. 17.01.070; Ch. 17.01.102;
Critical Aquifer Recharge Erosion Hazard Areas
Ch. 17.01.080; Ch. 17.01.104.
This permit, with conditions, is granted pursuant to the Mason County Resource Ordinance
(Chapter 17.01 MCC.) Nothing in this permit shall excuse the applicant from compliance with
any other federal, state, or local statutes, ordinances, or regulations applicable to this project.
This permit may be rescinded if the permitee fails to complete the project as proposed or fails
to comply with the standards of this ordinance.
Authorized Loll G ernment Official Date
Mason Environmental Permit
1/26/2005 Case No.: M EP2004-00083
Conditions:
1.) Proper erosion and sediment control practices must be used on the construction site and
adjacent areas to prevent upland sediments from entering shoreline waters. Erosion
control measures must be in place prior to any clearing, grading, or construction. These
control measures must be effective to prevent soil from being carried into surface water by
stormwater runoff. Sand, silt, and soil will damage aquatic habitat and are considered
pollutants. Any discharge of sediment-laden runoff or other poll utapollutants to waters of
the state is in violation of Chapter 90.48 RCW, Water Pollution Control, and WAC
173-201A, Water Quality Standards for Surface Waters of the State of Washington, and
is subject to enforcement action. Any work in or adjacent to waterways that will adversely
affect water quality must receive specific prior authorization from the Department of
Ecology pursuant to WAC 173-201A-110. A short-term water quality standards
modification may be issued if the proponent agrees to a number of specific construction
practices and techniques designed to minimize water quality impacts. All areas disturbed
or newly created by construction activities must be revegetated using bioengineering
techniques, clean durable riprap, or some other equivalent type of protection against
erosion when other measures are not practical.
2.) Temporary erosion control measures must be implemented to prevent water quality
degradation of adjacent waters or wetlands. Silt fencing must be installed and maintained
until upland vegetation has become established.
3.) Approved per dimensions and setbacks on submitted site plan.
4.) Public Works requests notification when the stormwater features are nearing completion
so that conformance with the project designs can be verified. Please contact Alan Tahja
at 360-427-9670 x461 for details.
1/26/2005 Page 2 of 2 MEP2004-00083
C
o T MASON COUNTY
N y
o PUBLIC WORKS DIRECTOR/COUNTY ROAD ENGINEER
Shelton,Washington98584
INTER-DEPARTMENTAL COMMUNICATIONS DATE: December 22"d, 2004
TO: Rick Mraz, DCD - Planner
FROM: Alan A. Tahja, P/W - Co. Hydr. Engr. WO# BLD-04
SUBJ: Grading& Stormwater Plan Review NAME: Loudin/Chet's Trusses—Belfair
GRD2004-00004 & MEP2004-00083
Rick,
A Construction Stormwater Erosion and Sediment Control Plan prepared for Chet's Trusses/Chester
Loudin has been received and reviewed by Public Works.
Public Works reviewed and recommended acceptance of a Stormwater Plan prepared for the proposed
truss factory expansion. Review comments are attached.
Public Works recommends acceptance of the SSP(the Permanent Water Quality Control Plan and Erosion
and Sediment Control Plan)as satisfying County stormwater management requirements for the proposed
site improvements. Public Works requests notification when the stormwater features are nearing
completion so that conformance with the project designs can be verified.
Please feel free to contact me at County extension 461 if you have any questions regarding these review
comments,or if there are any other issues you feel need additional consideration.
Sincerely,
Alan A. Tahja
Enclosed: IDC dated 9/28/04 recommending acceptance of the SSP.
* Western Washington Hydrology Model 2—"New Manual Requirements"
File: H:\WP\Strmwtr\Reviews\Chet Is Trusses-3.doc
WORK ORDER - PUBLIC WORKS DEPT.
1W Date: l a ' o_ (E) Work Order
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( ) Project j a Time Line: (from to dates) '
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yo1%,STA � MASON COUNTY
o P Ts N DEPARTMENT OF COMMUNITY DEVELOPMENT
o NU Planning Division
N IT ti P O Box 279, Shelton, WA 98584
0
0 1864 �0 (360)427-9670
REQUEST FOR ADDITIONAL INFORMATION
October 20, 2004
CHESTER A LOUDIN
1980 OLD BELFAIR HIGHWAY
P.O. BOX 2326
Parcel No.: 123174190070
Project Description: Construction of a storm water retention pond and widening of
an access road within a Category II wetland buffer.
Dear Applicant:
You have submitted a permit application (case no. MEP2004-00083) for proposed
construction or development in the county. Upon review of your application, I require
additional information to complete the permit review process.
Therefore, review of your application will not proceed until the necessary information
is provided (see the comment section of this letter for details.) Once the information
is submitted and the application is complete, I will continue to process your
application accordingly. If the additional information is not provided to the County
within 180 days of this request, the application shall expire and no further action on
the proposed development shall take place.
Please contact me at (360) 427-9670, ext. 577 if you have questions.
nc e
Rick
Land Use Planner --
Mason County Planning Department
10/20/2004 Page 1 of 2 MEP2004-00083
REQUEST FOR ADDITIONAL INFORMATION
10/20/2004 Case No.: MEP2004-00083
Comments: Field and plan review indicates that the stormwater pond is proposed at
25' from wetland edge. Per the Resource Ordinance, the pond may
only exist in the outer 25' or 25% of the wetland buffer, whichever is
greater. A Category 11 wetland requires an 85' buffer thus the minimum
setback for the pond from the wetland edge is 60'. Please revise the
plan to reflect this configuration. If you have questions or require
clarification of this issue, please contact me.
10/20/2004 Page 2 of 2 MEP2004-00083
ti N
1b V f(� d co-� -GU 01 3 b. Description of Existing Vegetation,cont'd:
1980 NE Old g etation
g Douglas firs,Cedars,
Belfair Hwy g W E Mason County Clearing and Approval Book and ground cover most of the east third of the property as shown in the
------ a engineering drawing. This will be left all natural by the property owners. _
s� 929 S.at 18"invert. '
Reviewed by: C. Description of Existing Drainage: A 12'diameter culvert under the
Xo- S / Old Belfair Highway located just outside the northwest corner of the
�} Existing 18"dia. / Approved by property and then connects to the county s 24"culvert which then goes
county culvert Drainage ditch(swile) /^\
/ my into a drainage ditch on the north side of the property and then the •Y to handle overflow conditions
�� Date: surface water runoff flows into an 18 diameter culvert which runs down
°c\ '�9+ from the 24"culvert during
the middle of the property from the north to south as shown In the drawing.
IP heavy,continuous rainfall
j 70 ' '�t�, `'• Note: Clearing and grading limits are shown in light blue Finally,the surface water runoff flows into an existing 50'x 100'
w ' Existing drainage in the draw ng below sedimentation pond before flowing into a natural) vegetated drainage
12'dia.culvert ng Y e9 ag
VI I AP TP680 sq.
_ ditch(,wale) - __ _- ditch leading to the Union River. _
Paved neigborhood with several �G paved area -------parked vehicles on this side of the `Z` -- � 9�. Adjacent Areas
roadwayContributes to surface �i� A(f eJ, , ' 1 Parcel#12317-41-00050
( t�P, �A' B ', C ,--'' 1. Description of adjacent areas which may be affected by
1 4
water runoff.) e7fl c 12`' e1t+-- j40-P�(80' Proposed drainfield Proposed drainfield - the site disturbance:
X 118 EI._-_- WdB + location -----locaticjrt - � a. Streams: The Union River is located at the southeast
a __ o and an unna I ed corner of the pr perty med creek is ocat- - ---- - o pr perty that flows under the
drainfield easement outside the west end f the o
OxR resewe ye trees G , X 105 E1. Old Belfair Highway.
X 97.1 El' / ,- 10, ,)(87.fr El. X 87.8'El. b. Lakes: There are no lakes in the vicinity of the property.
This creek has overflowed D „ 54,�00 sq.ft ,+ X c. Wetlands: Wetlands are located on the south side of
toward the 1T culvert / 12_dial.�Pip_e E lc ed�rea?•, t rL `L This area to be left all natural
X1
aF --- -- ----• _ _ ;%,';; the property al the drainage ditch swale as shown in
during the winter and spring , / 'i: ' consisting of trees and meadow
' X 92.3�I. � X 9t1.6�1. „ X 93:F.El. �.���. � ;' the drawing. Appropriate setbacks have been provided
months. :' \ ;, - , ,, 76 for the location of the expanded sedimentation pond.
Parcel1171i1 00060 ' 8T d. Residential Areas: The main residential is located on
AV
s,I -, `pr ` ; ' _ an elevated plateau and is not affected by the asphalted
' / d' Peninsula X .6 50 x 100� i `� ;i ' r ____ %; X 86•5'B. surface project. A24'x 36'house is located at the
X91. FFe__ XST�L ]P j
• f Truss Compan)r mpg ,, ,-_-_ - ,-' northwest corner of the property but will be removed
59 x 100 X 89i9 EL, Aer-- _--- j during the paving operations. A 12 x 5T trailer will remain
_ t___,_______ -- _ , , ,,a(8T EI. _ located at he west end of the property and is also not
--
' �--------------- --- ------------------- -- _ I t
0 --� 00 2( X9p.2 EY3017 6AOr '.. 700' 800 900 ---_ 1( y affected by the work
L 1_'___�t__ �_-_---____--_ - _1____ ____�____�_L__ _______ _-µ--___-____�_____________L_ � _s__.____ ________-_______i_________-____-_L--____--'_______3==_
,, _____ __ _________ _______ _ e. Roads: TheOIdBelfairHi hwayrunsfromthesouthwest
_X -X�0 - - ' Drainage ditch(swale) X 86.6 S. X 85.3'El.
to the northeast direction at the outside NW comer of the
98 94 ---- ~l Ig d18 _, 1 a er separator ;% e(86.2 El. property as shown. A 12'diameter culvert under the
+--- for 6 month storm ' ,' This area to be left all natural highway helps to drain water off the highway and from the
Install 2'dia.pipe --'`�r-iC90.$EL X 89'€i.- __ R _ 70 -_ -'"X 8QSi`'EI. g Y Ps �9 Y
to proposed drainfield consisting of trees and meadow unnamed creek located outside the west end of the
at NE corner of property 91': _ 65'x 308'x T settling pond -19'dia.culvert
property
13 500 sq R. - �- .ran ti high x 18 dia. Parcel#12317�11 00070 i. Other. A 50'x 100' truss manufacturing facility will be
with 3:1(V H)side slope ng ity
/ - -'paved area I r :icier is sgttlirg pond. expanded to 50'x 200'with new as
Existing 12'dia (refer to attached WWH& ,_-- _ Pa asphalt surfacing
culvert to be Lfuture�____-� X 88.4'EI simu�a ion results) ;.jCti.3"P�: ____ around the building as shown. A 40 x 80'storage
removed X 89.4' 50 (86 El. building is located on the north side of the property with
_ ---- 308'length the 19'culvert running underneath it.
\� - ------ 60'setback UNION RIVER
V 89, i/ :l from w1land � II. Description of the downstream drainage path leading from the site
Install 12'die. _ i > a to the receiving body of water. (Minimum distance of 400 yards.)
X 88'EI _ -----X 98 B. X 88.5�4 `- - `
storm - 'FJ. r� During heavy rainfall the surface water runoff flows into a 100'x 200'x T
R E VI S ---�- ,' - --- -
r sedimentation pond and then into a 6'high standpipe which leads to
- ?` natural vegetated drainage ditch where the surface water runoff is
�r!
Z-Z(�(/�f 2. Project Description further filtered before it flows into the Union River. The vegetated
.-DATE _ r drain e ditch ads as a bioflltration facilit that runs near) 300'before
8T 12 Required Elements for the Construction Stormwater Pollution Prevention Pian a. Total Project Area: 5.75 acres flowi r g to the river. y y
86, b. Total proposed impervious area:4.67 acres
1. Mark Clearing t$gits: Response: Clearing limits are identified in the above drawing c. Total area to be disturbed: 4.48 acres
DESIGN GUIDELINES and W11 be marked by survey stak*nor to construction. 6. Critical Areas
2. Establish Construction Access: Response: Main construction access is a eady in Existing Site Conditions a. Description of critical areas that are on or adjacent to the site:
August 2001 Stormwater Management Manual for Western Washington,August 2001 place and is located on the south side of the existing Peninsula Truss buik.ing. A relativlely steep embankment is located on the east side of the
3. Control Flow Rates: Response: Refer to the attached Western Washington Hydrological a. Description of the existing topography:The proposed paving area that will need to be protected from slides and
POND SIZING soil erosion during heavy extended rainfall periods. An unnamed
Model II computer simulation results for this basin which automatically sizes the retention general area of the expansion of the paving
pond using actual rainfall data starting in 1955 to 1999. It is recommended that construction is relatively level ground with a difference in is located at the outside west end of the property which flows under
Computer simulation: Western Washington Hydrological Model version 2(WWHM2) the Old Beffair Highway but is not affected by the proposed paving
with continuous simulation hydrology HSPF. Predevelo d input Mason Countyat takes place during the drier months of the year from June through October to minimize elevation of about 13'with p elevation of 96.3'
y ogy( ) � P ( surface water runoff during construction. on the north side of the property to 83.5 on the project.
1980 Old Belfair Hwy):Till forest=5.75 acres,impervious surface=0.71 acres(from Hwy), b. Description of special requirements for working in or near critical
Post developedin input:Till forest=0.79 acres,till grass=1 acre,impervious area roc _ 4. Install Sediment Controls: Response: All bare soil areas will be covered writh visqueen south side of the property. The residence lies
P g ( � at the end of each day's work during periods of rainfall greater than 1"in a 24 hour periods. on a plateau at an elevation of 104'as shown areas: The recommended BMPs for stabilizing the 60 to 70%
0.32 acres,streets,sidewalk,parking=3.85 acres,pond=0.5 acres.(Refer to drawing also,bare soils yr ll be Immediately protected if this rainfal l occurs during tte day and soil in the draw ng. An embankment at 118'elev embankment is hydroseeding,mulching,and/or the use of biodegradable
above for details on impervious areas.) hemp netting to help hold the mulch inplace and to prevent slides and
disturbing work will need to stop during this time, lies in the upper mid-section of the property.
5, Stabilize Soils: Response: All exposed soils especially on sloped embanlm�ents shall b. Description of existing vegetation: A 300' soil inches from taking place during heavy rainfall which can be as much
Auto pond sizing: Bottom length x bottom width,990 s 2'x 134. ) =17,990 sq.ft. be protected by hydroseeding and'or mulching to prevent soil erosion and slides on the long x 20'wide greenbelt consisting of deciduous as 8 inches in a 24 hr period for the 100 year rainfall.
Actual pond sizing:98'x 198'=19,400 sq.ft.>17,990 sq.ft.(req'd) OK steep embankments. trees will be preserved running from east to west
6. Protect slopes: Response: Apply hydroseeding,mulching,and/or visqueen held inplace as shown in the drawing.
CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN CHECKLIST with sandbags to help protect the slopes along the embankments especiehy during periods
(Reference: August 2001 Stormwrater Management Manua!for Westem Washington) of continuous rainfall,i.e.,1"or greater of rainfall in a 24 hour period. ) N P. Af0 � EROSION AND SEDIMENT CONTROL PLAN
7 Protect Drain Inlets: Response: Currently there are no drain inlets or catghbasins on the WAS Q�, 6 OV for Peninsula Truss Company,1980 Old Belfair Hwy
site to protect. cj O I y Belfair,WA Parcel#12317-41-00060
1. Construction Stormvater Pollution Prevention Elements 4, Hti ( )
8. Stabilize Channels and Outlets: Response: An existing sedimentation poixl and drainage � �, C
a. Describe how each of the Construction SWPPP elements has been addressed 7 ---
ditch swrales prevent surface water runoff from flawing directly into the Union River. � ,�,' O Prepared for: Chet and Debbie Loudin
through the Construction SWPPP. Answer: Refer to the following 12 elements. Z P.O.Box 2326
b. identify the type and location of Best Management Practices used to satisfy the 9. Control Pollutants Response: Construction equipment shall be inspected for any oil or �,
required element. Answer: Refer to the detailed diagram above the type and
hydraulic leaks and be properly maintained prior to arrival on site i ��g /J Belfair,WA98528
10, Control De-Watering: Response: De-watering is not required since the groundwater table r% /�
locations of the applicable BMPs � �`�P`f (360)275-7422
Prepared atchbasins f th bot
tom
the
e oom o e c .
c. Written justification identifying the reason an element is not appicable to the proposal. is located be � � 30758 Pre pa by Morta Engineering and Testing
11, Maintain BMPs: Response: Hydroseeding and mulching will be maintained especially
Answer:Refer to the following 12 elements. O Fl;/�R P O.Box 250,Ocean Shores,WA 98569
during periods of heavy extended rainfall periods. , (13M 5%-0958 (360)289-9W fax
12. Manage the Project: Response: The owner will be responsible for manajirg this project Y10NAL G ---
and ensuring that the Construction Stomlwater Pollution Prevention Plan is properly and Sept, 7,2004
thoroughly im lented this construction SWPPP Rev Dec. 16 2004 Designed by 3PM Sheet 1 of 2