HomeMy WebLinkAboutSPI2012-00002 Repairing Dam and Replacing Culvert - SPI Inspections - 1/23/2012 ,r t so4tt +V '(f f
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oN-STATE MASON COUNTY
k o y DEPARTMENT OF COMMUNITY DEVELOPMENT
s N = Planning Division
o Y n P O Box 279, Shelton, WA 98584
(360)427-9670
1864
Site Inspection
January 23, 2012
GARY REED
501 N LILLIWAUP ST
LILLIWAUP WA 98555
Case No.: SP12012-00002
Parcel No.: 323192300000
Project Description: REVIEW OF REGULATORY REQUIREMENTS RELATED TO
REPAIRING DAM AND REPLACING PENN STOCK CULVERT
THAT WAS KNOCKED OUT BY LANDSLIDE. BRING
HYDROELECTRIC DAM BACK UP AND RUNNING.
Dear Applicant:
Pursuant to your application, a site pre-inspection (SPI) was performed on your property. Below
you will find comments made regarding the proposed development and its critical values.
In some cases, setbacks for development from shorelines, steep slopes, streams, and wetlands
must be included in your specific proposal; these setbacks are included as part of the comments
listed below.
This information is based on County and State regulations as they exist to date. These
regulations may change and may affect the requirements for development of the subject property.
Please contact me at (360) 427-9670, ext. 287 if you have questions.
Sincerely,
f,
Rebecca Hersha
Land Use Planner
Mason County Planning Department
1/23/2012 Page 1 of SP12012-00002
�t12012-00002
Parcel Numbers: 32319-23-00000, 32319-24-00000, 32319-24-00030
Below are the Planning pre-inspection results for Gary Reed and the Lilliwaup Falls Generating
Company as determined from an on-site visit January 11, 2012 in which Engineers Maureen Kwolek
(Resolvent) and Craig Norsen(Seneca Group)and Biologist Kim Schaumburg were present:
I. INTRODUCTION
The purpose of the pre-inspection was to evaluate Planning Department issues related to the
Following:
(A)Repair/replacement of a concrete box culvert that routed water from Lilliwaup Creek to the
(Penn Stock pipes and then to the) power house/turbines/generators. In 2006, a landslide
destroyed a portion of the concrete box culvert, and all hydroelectric operations ceased. In
order to bring the facility into working order, the slope at the slide would be regraded
(bringing soils from the scarp at the crest of the slope down towards the culvert) so that the
replacement pipe is supported and to reduce the slope's steepness to less than its angle of
repose,making it more stable. The embankment supporting the pipe would be stabilized with
gabion baskets filled with soil. The embankment and the replaced pipe are possibly within
200 feet of the Lilliwaup Creek.
(B)The dam at the top of one of the waterfalls also needs repair work.
(C)Possibly reroute Winter Creek (the creek entering Lilliwaup Creek just above the dam) to
where it ran before the last major flood, which would outlet Winter Creek into Lilliwaup
Creek less than 100 feet upstream. Winter Creek is mapped by DNR as an F stream
(potential to bear fish).
II. ZONING
The zone designation for the site is Rural Residential 10. `Public utilities' are an allowed use
in RRI0.
III. FEMA FLOODPLAIN
Not applicable—there is no FEMA mapped floodplain along this section of Lilliwaup Creek.
IV. LANDSLIDE, SEISMIC, AND EROSION HAZARD AREAS
Due to steep slopes and landslide activity, work is within is a `Landslide Hazard Area' and
therefore requires a Geotechnical Report that meets the requirements in MCC 8.52.140 (Resource
Ordinance 17.01.100). Be sure to submit the report with the required checklist. The report shall
address all proposed grading, construction, slope and channel stabilization, and clearing
activities.
The location may be a Seismic Hazard Area, if so the author of the Geotechnical Report shall
address this issue. The location is not in an Erosion Hazard Area per Mason County's definition
(based on USDA soil mapping).
V. FISH& WILDLIFE HABITAT CONSERVATION AREAS (FWHCA)
The water type (typing and mapping done by WA DNR) of Lilliwaup Creek is `S' (shoreline),
and the water type of Winter Creek and Beardslee Creek are `F' (potential for fish). The
FWHCA chapter of the Mason County Resource Ordinance requires a vegetated buffer of at least
150 feet (measure horizontally) on both sides, as measured from the streams' Ordinary High
Water Marks for both `S' and `F' streams. All work will be considered new construction per
the Resource Ordinance because the destruction caused by the landslide and/or floods occurred
over two years ago, and the use discontinued over three years ago.
(A) (pipe replacement and embankment/grading) appears to probably not be within the buffer of
a creek. If I am in error, and the grading/embankment is within 150 feet of a stream, the then an
MEP is required. However, if it does not meet the following requirements, then a Variance
(replacing the MEP)and HMP is required:
Utilities: Placement of utilities within designated Fish and Wildlife Habitat Conservation Areas may be
allowed pursuant to the following standards:
i. Construction of utilities may be permitted in FWHCA's or their buffers,only when no practicable or
reasonable alternative location is available and the utility corridor meets the requirements for
installation, replacement of vegetation and maintenance outlined below. Utilities are encouraged to
follow existing or permitted roads where possible.
ii. Not applicable.
iii. Not applicable—There are no listed species in the vicinity.
iv. Utility corridor construction and maintenance shall protect the environment of Fish and Wildlife
Habitat Conservation Areas and their buffers.
(1) New utility corridors shall be aligned when possible to avoid cutting trees greater than 12 inches
in diameter at breast height(four and one-half feet)measured on the uphill side.
(2) New utility corridors shall be revegetated with appropriate native vegetation at not less than pre-
construction vegetation densities or greater, immediately upon completion of construction or as
soon thereafter as possible due to seasonal growing constraints. The utility shall ensure that
such vegetation survives for a three-year period;
v. Not applicable.
(B) (dam repair) requires an MEP. If any native vegetation is denuded or if soils are exposed, it
shall be revegetated per `v' above.
(C) (stream relocation and stream bank stabilization)requires an MEP and a Habitat Management
Plan. However, if it does not meet the following requirements, then a Variance (with HMP) is
required(replacing the MEP):
Stream Relocation: Stream relocations are discouraged except for the purpose of fisheries restoration
and require a Habitat Management Plan. Stream relocation shall only be permitted when adhering to the
following minimum performance standards and when consistent with Washington State Department of
Fish and Wildlife Hydraulic Project Approval.
i. The channel, bank and buffer areas shall be replanted with native vegetation that replicates a
natural,undisturbed riparian condition;and,
ii. For those shorelands and waters designated as Frequently Flooded Areas pursuant to Section
17.01.090, a professional engineer licensed in the State of Washington shall provide information
demonstrating that the equivalent base flood storage volume and function will be maintained.
iii. Relocated stream channels shall be designed to meet or exceed the functions and values of the
stream to be relocated as determined by the monitoring in the Habitat Management Plan.
Bank Stabilization: A stream channel and bank, bluff, and shoreline may be stabilized when naturally
occurring earth movement threatens existing legal structures (structure is defined for this purpose as
those requiring a Building Permit pursuant to the International Building Code), public improvements,
unique natural resources,public health, safety or welfare,or the only feasible access to property, and, in
the case of streams, when such stabilization results in maintenance of fish habitat, flood control and
improved water quality. Bluff, bank and shoreline stabilization shall follow the standards of the Mason
County Shoreline Master Program, Landslide Hazard Areas, and any floodplain management plan
adopted by the Board of Commissioners.
Mason County may require that bank stabilization be designed by a professional engineer licensed in the
State of Washington with demonstrated expertise in hydraulic actions of shorelines. For bank
stabilization projects within FWHCAs, emphasis shall be placed on bioengineering solutions
(techniques used alone or in combination such as beach nourishment, coarse beach fill, gravel berms, or
vegetation rather than hard surfaces such as concrete armoring) unless proved by the applicant to be
infeasible. Bank stabilization projects may also require a Hydraulic Project Approval from the
Washington Department of Fish and Wildlife and will be determined after consultation with WDFW.
Priority Habitats and Species: WA DFW has mapped the creek upstream of the falls as
containing Cutthroat and Rainbow Trout, neither of which are currently listed as having a Federal
or State endangered or threatened status (see PHS report attached). Downstream of the falls are
more salmon species. No other Priority Habitats and Species (such as Old Growth, Roosevelt
Elk, etc)are mapped as being in the vicinity.
VI. SHORELINE MASTER PROGRAM (SMP)
Per Mason County's Shoreline Master Program, Lilliwaup Creek is an Urban Residential
Shoreline. Therefore, in addition to the above FWHCA jurisdiction, Lilliwaup Creek is also
governed by the Shoreline Master Program. The 200-foot SMP jurisdiction, as measured from
each side of the Lilliwaup Creek in perpendicular direction, includes all of the proposed activities
(A-C).
(A) (pipe replacement and embankment) and (B) (dam repair) both meet the definition of repair
(WAC173-27-040 (2)(b)) that is exempt from the Shoreline Substantial Development permit
requirements, therefore both activities instead require a Shoreline Exemption. This exemption is
limited to those repair projects that do not cause "substantial adverse effects to shoreline resource
or environment." The pipe replacement and embankment (A) activities will need to meet the
requirements in the Landfill and Commercial Development chapter. The dam repair (B) will
need to meet the requirements in the Utilities and Commercial Development chapter.
(C) (Winter Creek stream relocation)would require a Shoreline Substantial Development Permit,
which includes a Public Hearing. Since it is an unspecified use, it will also require a Shoreline
Conditional Use Permit (also required if there will be any `landfill' work waterward of OHW).
Check with the Army Corps of Engineering to see if they would require a Biological Evaluation
for impacts to Lilliwaup Creek.
VII. SEPA
The project is not exempt from SEPA. Please submit a SEPA Checklist with the other required
applications,reports, and drawings.
VIII. STORMWATER
MCC Title 14.48 contains stormwater provisions for both development and redevelopment. The
following stormwater provisions are required for redevelopment(including land disturbing
activities) greater than one acre:
• Minimum requirements#1 through#11 shall be implemented(see MCC 14.48.150(3)).
• Source control BMPs (per Ecology's 2005 Manual) shall be applied to the entire site,
including adjoining parcels if they are part of the project.
• A stormwater site plan shall be prepared, which includes an engineered Erosion and Sediment
Control Plan
• Minimum requirements#1 - #5 in Ecology's Manual including a Construction Stormwater
Pollution Prevention Plan
If there will be disturbance of an acre or more and stormwater will discharge from the site to
Lilliwaup Creek,then a Construction Stormwater General Permit(CSWGP) is required from
Washington Department of Ecology.
IX. BUILDING AND GRADING CODE
Although the Building Code is the Building Department's jurisdiction, I have obtained from that
Department whether grading and building permits are required.
(A) Pipe replacement — No building permit, but an engineered grading permit (Land
Modification Permit) is required. See Mason County Code 14.44.080.
(B) Dam repair — No building permit, but a grading permit (Land Modification Permit) is
required.
(C) Stream Reroute — No Building Permit required, but a grading permit (Land Modific
Permit) is required(engineered if>5,000 cubic yards cut/fill). , , V
X. ROAD ACCESS __VJo�l
This development is accessed from Lilliwaup Street (upper stretch is private and the rest is
County), which connects to US HWY 101. Public Works may require a Road Access Permit, if
one has not previously been approved. Check with the Building Department for fire access
road/driveway requirements. They may not be interested due to the pre-existing use.
Specific standards for future development contained in County Codes may be found at the County
website address http://www.co.mason.wa.us. County regulations are subject to change. If you have
any questions please feel free to call. Thank you.
f�
Lilliwaup Falls Hydroelectric-Projected permit requirements based on site pre-inspection
Prepared by RDH on January 17, 2011
For `A' and `B' - Pipe replacement with grading/embankment and dam repair:
PERMITS and permit fees
Mason Environmental Permit $380
Land Modification Permit $? Contact the Permit Center for fee
SEPA Checklist $755
Shoreline Exemption(JARPA form) $510
Also:
Hydraulic Project Approval from WDFW
Permit from US Army Corps of Engineers?
DNR may require some type of approval for dam repair.
REPORTS and review fees
Geotechnical Report(with checklist) $255
Stormwater Erosion and Sediment Control Plan and Construction Stormwater Pollution
Prevention Plan $255
The SEPA process could result in a need for more reports/information such as an
Archaeological Survey.
For `C'—stream reroute:
PERMITS and permit fees
Mason Environmental Permit $380
Land Modification Permit $?Contact the Permit Center for fee
Shoreline Substantial Development/Conditional Use Permit $880 or more(depends on cost
or project)
With a public hearing $2,005
Also:
Hydraulic Project Approval from WDFW
Permit from US Army Corps of Engineers?
DNR may require some type of approval.
REPORTS and review fees
Habitat Management Plan $445
Geotechnical Report(with checklist) $255
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MASON COUNTY
• PLANNING DEPT. PRE-INSPECTION APPLICATION
PLEASE PRINT $255.00 Fee Required
L
1. Owner: Qr Ri Applicant: t tl CO.
Site Address: O S Applicant Address: O 1 Sir
.
Owner Address: City: QI St WA-Zip S
City: 111 t.t_ St Zi �QjSsS Phone: Z( 0(a ) — day
Phone: 20 S q I day
Phone:( (p) evening Planner:
Email Address:W ree,d.e_ s'% Co PA SMP Comp.Plan Type of Use
32319 2`}00� Z Water Body
2. Parcel No. - - TO B 4 KEPT IN T H E
Parcel No. �I
Legal Description: �,e£ 1
citackP�
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3. Pu ose of Pre-Inspection,: 0.+ Y P �f e V1 rt ,_ 'e d }D
e_ larA s t r-
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4. Use of building: ['ESL -e t\C C_ art. hY y o be uJ e r D�Q Y� 1
5. Do any of the following exist on or adjacent to property?: slope(X) saltwater lake( river( )
pond( ) wetland( ) seasonal runoff( ) other( ) stream(A) seasonal creek�jG)
Directions to Site:
If the information is incomplete, then Mason County must disclaim any errors resulting from deficiencies in the original
application. Pre-inspection reports remain valid only until development changes occur in the vicinity which affect the lot
evaluated in this inspection,or the laws regulating development of the site change after the time of inspection.
-
Applicant Signature. - Date: 29 peg I//
f
If you would dike to be on site during in pection,please check here: ( ) hd 4LAt � 1
�ls efa� CD.
Return application to: Department of Community Development,Planning Division
�. � � a+nc�
P.O. Box 186 qar y
Shelton,WA 98584
(360)427-9670
Please include a$255 .00 check or money order payable to Mason County Treasurer
When completed,this form becomes part of the parcel file.
FOR OFFICE USE ONLY: Accepted by: tDCA Date: I
MORE ON BACK SIDE
Revised: 12/30/08
FND. LOVITT BAR AND CAP
FND. LOVITT BAR AND CAP D.98' N OF CALC LINE
1.25' N OF CALC LINE
TOPOGRAPHIC SURVEY
FOR
LILLI WAUP FALLS GENERATING COMPANY
IN
NE 1/4, NE 1/7 & NW 1/4, NE 1/4 &
NW 1/4, NW 1/4 & NE 1/4, NW 1/4 & SW 1/4, NW 1/4 &
SE 1/4, NW 1/4 & NW 1/4, SW 1/4 & NE 1/4, SW 1/4
ALL IN S ECTIDN 19, TOWNSHIP 23 NORTH, RANGE 3 WEST, WM.
LINE TABLE LEGEND
NO. BEARING DISTANCE
L1 S 89'33'36" W 93.07 = FOUND CONCR
4 N 003
L2 S 00'37,19, E 104.68 UNLESS OTHER
' 7 19
W
130.00
L5 S 89'22,41„ W 100.00
L6 S 00*3719„ E 130.00 O = FOUND AS NO
L 7 N 00'37 19 W 150.00 =
L8 S 89*22',41;' W 140.00 SET #5 IRON
L9 N 00'37'19 W 50.00 YELLOW CAP
0.00
Lll S gg•22'4;" W 160.00 = LILLIWAUP CRE
L 13 S 00 23'21" W 141.67
OF
GI TIZED
MAP.
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WASHINGTON DEPARTMENT OF FISH AND WILDLIFE
PRIORITY HABITATS AND SPECIES REPORT
SOURCE DATASET: PHSPlusPublic Query ID: P120117125551
REPORT DATE: 01/17/2012 12.56 PM
Common Name Site Name Priority Area Accuracy Federal Status Sensitive Data Source Entity
Scientific Name Source Dataset Occurrence Type State Status Resolution Geometry Type
Source Record More Information(URL) PHS Listing Status
Notes Source Date Mgmt Recommendations
Coast Resident Cutthroat Lilliwaup Creek Occurrence/Migration NA N/A N WA Department of Fish&Wildli
Oncorhynchus clarki FISHDIST Occurrence/migration N/A AS MAPPED Lines
19858 http://wdfw.wa.gov/wim/diversty/soc/soc.htm
http://wdfw.wa.gov/publications/pub.php?id=00033 PHIS LISTED
Cutthroat Lilliwaup Creek Occurrence NA N/A N WDFW Fish Program
Oncorhynchus clarki SASI Occurrence N/A AS MAPPED Lines
7960 http://wdfw.wa.gov/wlm/diversty/soc/soc.htm
http://wdfw.wa.gov/publications/pub.php?id=00033 PHIS Listed
Rainbow Trout Lilliwaup Creek Occurrence/Migration NA N/A N WA Department of Fish&Wildli
Oncorhynchus mykiss FISHDIST Occurrence/migration N/A AS MAPPED Lines
10934 http://wdfw.wa.gov/wlm/diversty/soc/soc.htm
http://wdfw.wa.gov/publications/pub.php?id=00033 PHIS LISTED
DISCLAIMER. This report includes information that the Washington Department of Fish and Wildlife(WDFW)maintains in a central computer database. It is not an attempt to provide you with an official agency response
as to the impacts of your project on fish and wildlife. This information only documents the location of fish and wildlife resources to the best of our knowledge. It is not a complete inventory and it is important to note that fish
and wildlife resources may occur in areas not currently known to WDFW biologists,or in areas for which comprehensive surveys have not been conducted. Site specific surveys are frequently necesssary to rule out the
presence of priority resources. Locations of fish and wildlife resources are subject to vraition caused by disturbance,changes in season and weather,and other factors. WDFW does not recommend using reports more than
six months old.
01/17/2012 12.56 PM 1
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Study Area Diagram
BOUNDING BOX: -13708208,6018026,-13703168,6020786
Query ID: P120117125551
(web mercator meters)
01/17/2012 12.56 PM 2
Rebecca Hersha- RE: stream reroute
From: "Mraz, Richard A. (ECY)" <rmra461@ECY.WA.GOV>
To: Rebecca Hersha<RebeccaH@co.mason.wa.us>
Date: 1/23/2012 11:27 AM
Subject: RE: stream reroute
It's a tricky issue. I'm not trying to be evasive around your question: CUP or not. It just seems that
the stream relocation part is unspecified and probably triggers a CUP.
Have you spoken with Margie about this? It seems that they would need a geohydraulic engineer to
design the reroute. There's a reason the stream is where it is now. If they need a CUP I'd appreciate
seeing the site before you have a hearing.
Rick Mraz,PWS
Wetlands/Shorelands Specialist
Shorelands and Environmental
Assistance Program
Southwest Regional Office
(360)407-6221
rmra461 @ecy.wa.gov
From: Rebecca Hersha [ma i Ito:Rebecca H @co.mason.wa.us]
Sent: Monday, January 23, 2012 10:56 AM
To: Mraz, Richard A. (ECY)
Subject: RE: stream reroute
No problem. I haven't had power since Wednesday either, and still am waiting...
Not sure which section of SMP, except for maybe "utilities" (to protect the dam) and/or
"shoreline stabilization" and/or "landfill," but landfill waterward of OHWM requires
Conditional.
I will have to think about this a bit more I suppose.
-Rebecca
>>> On 1/23/2012 at 9:27 AM, in message
<01 7A6AA71216034BB793775F 1 AD38BCF02A2268F@WAXMXOLYM B007.WAX.wa.lcl>,
"Mraz, Richard A. (ECY)" <rmra461 @ECY.WA.GOV> wrote:
Hi Rebecca,
Sorry for the delay in replying. We've been closed at Ecology since last Wednesday and I
haven't had power at my house since about the same time. Stream relocation doesn't seem like a
specified use. Is there a section of the SMP that you think addresses this?
! A
Rick Mraz,PWS
Wetlands/Shorelands Specialist
Shorelands and Environmental
Assistance Program
Southwest Regional Office
(360)407-6221
rmra461 @ecy.wa.gov
From: Rebecca Hersha [mai Ito:Rebecca H@co.mason.wa.us]
Sent: Tuesday,January 17, 2012 2:26 PM
To: Mraz, Richard A. (ECY)
Subject: stream reroute
Hi Rick,
I am preparing a Site Pre-Inspection Report for the Lilliwaup Falls Hydroelectric Facility.
They ceased operation in 2006 when a landslide took out their pipe that routes
Lilliwaup Creek water to the turbines.
In addition to repairs to the pipe and dam, they are also considering rerouting the last
reach of Winter Creek. The creek either changed course after a powerful flood or it cut
off one of two channels entering Lilliwaup Creek. Please see my drawing (attached).
The stream used to run in the location where they want to site it. It's kinda difficult to
explain.
Since much of the stream relocation is within Lilliwaup Creek's 200 foot shoreline
jurisdiction, I am telling them that they will need a Substantial Development Permit for
shoreline stabilization measures on Urban Residential.
But I want to check with you first, in case you feel they need a conditional use.
Thanks!
Rebecca Hersha, Planner
Mason County DCD
360-427-9670 ext. 287
A Go Green! Please consider the environment before printing this email or its attachments.
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February 2012
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4
5 6 7 8 9 10 11
(3:00 PM-4:00 PM) Mortgage Payment
Staff Meeting
12 13 14 15 16 17 18
(3:00 PM-4:00 PM) LHA Revision to Susie
Staff Meeting
19 20 21 22 23 24 25
(12:00 AM- 12:00 AM) (3:00 PM-4:00 PM)
HOLIDAY Staff Meeting
26 27 PM Pf) 28 29
(6:00 AM-7:00 AM) (3:00 PM-4:00 PM)
PAC-LHA Revisions Staff Meeting
Rebecca Hersha 1 I/12/2012-9:29 AM
ok
Rebecca Hersha-Re:grading
From: Loretta Swanson
To: Hersha,Rebecca
Date: 1/23/2012 1:48 PM
Subject: Re:grading
Rebecca,
You have correctly interpreted our code as it is written. Source control BMPs can be found in the Manual and when an engineered plan is required,the
engineer will call out the applicable BMPs. Not all Erosion and Sediment Control Plans are required to be prepared by an engineer(small parcel,for example).
However,when all the Minimum Requirements apply,it will be an engineered plan.
That said,our code isstricher than the 2005 Manual. If we simply follow the 2005 Manual,I think at a minimum,a DOE CSWGP will be required and 2005
Manual Min.Rqmt.#2(which is essentially the same thing as the CSWGP). It is possible that 2005 Manual Min Rqmts#1-#5 apply,which are slightly
different from our code:
County Stormwater Code/2005 Manual Comparison
County Stormwater Code 2005 Manual
Minimum Requirement#1—
Preparation of Stormwater Site Plans
Minimum Requirement#1— Minimum Requirement#2—
Erosion and Sediment Control Construction Stormwater Pollution Prevention
(SWPP) (SWPP)
Minimum Requirement#2— Minimum Requirement#3—
Preservation of Natural Drainage Systems Source Control of Pollution
Minimum Requirement#3— Minimum Requirement#4—
Source Control of Pollution Preservation of Natural drainage Systems and
Outfalls
Minimum Requirement#4— Minimum Requirement#5—
Runoff Treatment BMPs On-Site Stormwater Management
Minimum Requirement#5— Minimum Requirement#6—
Streambank Erosion Control Runoff Treatment
Following is a bit more detail:
DOE requirements
If there will be disturbance of an acre or more andstormwater will discharge from the site to Lilliwaup Creek,then a Construction Stormwater General Permit
(CSWGP)is required from Ecology. (It looks as though a CSWGP will be needed by looking at the aerial map and topo.) The site is near an impaired water
listing and Ecology may have additional CSWGP requirements;Lilliwaup Creek is on the 303(d)list for fecal coliform.
htti)://www.ecy.wa.aov/services/Qis/maps/wria/303d/wl6-303d.pdf
County requirements
Which manual applies?
If an application is made and deemed"complete"after June 1,2012 then the 2005 Manual applies.
If a complete application is submitted prior to that date,the 1992 Manual may apply. The pink area below indicates the area in which the 2005 Manual
applies. Will work occur here,as well as the slide area to the west? If so,it would be simplest to just have them follow the 2005 Manual.
Which minimum requirements apply?
Section 2.2 of either Manual identifies exemptions. The 2005 Manual includes an exemption for utility projects that is NOT in the 1992 Manual:Underground
utility projects may be considered exempt if the ground surface is replaced"...with in-kind material or materials with similar runoff characteristics..."and"...are
only subject to Minimum Requirement#2,Construction Stormwater Pollution Prevention." (The applicant may make this argument. I would consider this an
underground utility project,but the applicant needs to address how the ground surface will be replaced.)
If the applicant does notmake the exempt argument,then look @ the Flow chart for redevelopment(Fig 2.3 in the 2005 Manual):
Disturbing 7,000 sq ft or more?(YES); Minimum Requirements#1-#5 apply to the disturbed area.
We need more info from the applicant to determine the answer to the next question:Add 5000 sq ft or more impervious?(I'm guessing"no");or convert 3/4
acres or more of native to lawn or landscape?(again,guessing"no");convert 2.5 acres or more of native veg.to pasture(maybe?)? If the answer is yes to
any of these,then Minimum Requirements#1-#10 apply.
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Loretta Swanson
Storrnwater Program Coordinator/Program Manager
100 W Public Works Drive
Shelton,WA 98584
(360)427-9670 Ext.769
>>>Rebecca Hersha 1/23/2012 11:16 AM>>>
Oh you live near me-do you have power yet???
>>>On 1/23/2012 at 11:08 AM,in message<4F1DB043.C61:85: 14793>,Rebecca Hersha wrote:
All I have is this aerial photo that I printed and wrote notes on. And a couple photos. (attached)
This is just a site pre-inspecbon,so nothing really has been submitted. I could meet this afternoon or tomorrow if you like.
-Rebecca
>>>On 1/17/2012 at 4:28 PM,in message<4F16121D.400:155:61585>,Loretta Swanson<LorettaS@co.mason.wa.us>wrote:
hello Rebecca,
Can you send a PDF of the submittal or can we get together to review?
Drive safe!
Loretta
>>>Rebecca Hersha 1/17/2012 3:56 PM>>>
Hi Loretta,
A hydroelectric facility stopped operation in 2006 after a landslide took out their pipe that routes water from the dam to the turbines. They need to
do significant grading and repairs before they can resume operations. The grading will involve more than an acre(and does not affect an impaired
receiving water,nor are there>50%impervious surfaces),so is the following correct?
• Min Reqs#1-#11 shall be met
• Source control BMPs shall be applied
• Stormwater Site Plan shall be submitted
If so,are the source control BMP's found in the 2005 Manual? The definition of Stormwater Site Plan indicates that an ESC plan is required. Are all
ESC plans engineered?
Thanks.
-Rebecca