A-2. Surface Water Management Plan UpdateEngineering
MEMORANDUM
CITY OF
TO: Paul Oehme, P.E., Public Works Director /City Engineer
CHMNSENFROM:
Terry Jeffery, Water Resources Coordinator
7700 Market Boulevard
AV
Po Box 147
DATE: January 26, 2015
Chanhassen, MN 55317
Fax: 952.227.1110
SUBJ: Surface Water Management Plan Update
Administration
1. Plan purpose;
Phone: 952.227.1100
2. Water resource management related agreements;
Fax 952.227.1110
With the Riley- Purgatory-Bluff Creek Watershed District's adoption of the rules in
Building Inspections
August of 2014, all four watershed organizations have completed their local water
Phone: 952.227.1180
management plan (LWMP) updates. Under Minnesota Statute we are required to
Fax: 952.227.1190
update our plan to be consistent with the various organization LWMPs.
Engineering
Phone: 952.227.1160
In anticipation of this, staff began working with Wenck Associates to update our
Fax 952.227.1170
Surface Water Management Plan. Minnesota Rules Chapter 8410 dictates what must
be included in a local water management plan. These minimum required elements
Finance
include:
Phone: 952.227.1140
Fax: 952.227.1110
1. Plan purpose;
Park & Recreation
2. Water resource management related agreements;
Phone: 952.227.1120
3. Land and water resource inventory;
Fax: 952.227.1110
4. Establishment of policies and goals;
Recreation Center
5. Assessment of problems;
2310 Coulter Boulevard
6. Corrective actions;
Phone: 952.227.1400
7. Financial considerations;
Fax: 952.227.1404
8. Implementation priorities;
Planning &
9. Implementation program; and
Natural Resources
10. Amendment procedures.
Phone: 952.227.1130
Fax: 952.227.1110
Many of these elements will remain relatively consistent with the two previous plans.
Public Works
Some of the elements, such as land and water resources inventory, are continuously
7901 Park Place
being updated as land uses change. We have recently updated our hydrologic model
Phone: 952.227.1300
for the entire City of Chanhassen. This, in addition to real time observations of
Fax: 952.227.1310
systems operations during key storm events, will be used to help identify and assess
Senior Center
problems.
Phone: 952.227.1125
Fax: 952.227.1110
Our next step is to begin review of the current policies and goals and update as
Website
necessary. Staff will meet with the Environmental Commission in February to go
www.ci.chanhassen.w.us
over the existing policies and goals, offer suggestions for revisions and schedule an
open house to open a dialogue with residents and stakeholder groups.
G:\ENG \Terry \Surface Water Management\2014 SWMPg3 Update\ Meetings \MEM0 _Citycouncil_012615.doex
Chanhassen is a Community for Life. Providing forTodayand Planning for Tomorrow
A -c�--
Paul Oehme
Surface Water Management Plan Update
January 26, 2015
Page 2
Concurrent with this, staff will begin updating the implementation program; specifically, local
controls that will need to be revised as part of the plan update. Attached to this memorandum
you will find a spreadsheet comparing the various watershed rules and our existing code. The
items in red are areas where we are inconsistent with other organizations and would therefore
need to be updated or deferred to the watershed. The next section of this report will be dedicated
to summarizing the watershed organization rules and anticipated code changes.
PLAN UPDATE IMPLICATIONS TO LOCAL CONTROLS
FLOODPLAIN PROTECTION
Our code was first adopted in 1986 and was based upon the 1979 Flood Insurance Rate maps
(FIRM). Currently the Federal Emergency Management Agency (FEMA) is updating the FIRM
maps but should not alter our overlay district. The only anticipated change to current ordinance
will be to require mitigation for any reduction of storage volume within floodplain areas.
EROSION PREVENTION AND SEDIMENT CONTROL
Executive Summary: Minor amendment to address topsoil definition and application
responsibility.
In the current form of Section 19 -147 of Chanhassen Code, it is consistent with all other rules.
Staff is reviewing the current top soil requirement as there is some ambiguity as to what
constitutes "topsoil' and how to assure compliance. Staff are frequently contacted by
homeowners who are finding that their sod is growing immediately atop compacted clay. This
results in an increase in surface ponding, a decrease in rooting depth, a decreased likelihood of
successful turf establishment, an increase in fertilizer application and an increase in irrigation
frequency and duration. All of this results in an increased demand for potable water for
irrigation and an increase in runoff of surface water and the pollutants the runoff carries. This is
not an issue unique to Chanhassen as numerous other communities have developed, or are in the
process of developing a specification for top soil.
WETLAND AND CREEK BUFFERS
Executive Summary: Significant discrepancies in buffer width requirements between four
agencies with applicable rules. Must determine whether to change rule to comply with all
districts, as many as practicable or leave as is and defer to districts.
This regulatory control has the widest disparity between entities and may prove impossible to
reconcile. It has long been the practice of Chanhassen to maintain local control to provide a
GdENG \Teny\Surface Water Management\2014 SWMPg3 UpdateVNeetings\ MEM0 _Citycouncil_012615_rev.docx
Paul Oehme
Surface Water Management Plan Update
January 26, 2015
Page 3
central location for residents, developers and consultants to come to ask questions and procure
permits. Staff is recommending reviewing how setbacks are applied in an effort to bring buffer
rules into compliance with the Minnehaha Creek Watershed District, but not adopting the Riley -
Purgatory -Bluff Creek Watershed District ( RPBCWD) rules as they are beyond what is required
by any other agency. This would require certain groups and individuals to go to RPBCWD for
permit acquisition. The bar graph in figure 1 shows a scaled representation of the various buffer
requirements of the agencies with jurisdiction in Chanhassen. The Lower Minnesota River
Watershed District has not adopted any rules.
Watershed districts do not require setbacks while cities do as there are development implications
to not requiring setbacks. The biggest concern with not having a setback is the expectation that a
secondary structure such as a deck or patio can be installed. If the house is constructed at the
buffer edge, then the opportunity to install a secondary structure is no longer present.
Chanhassen setbacks are 30 or 40 feet and secondary structures may encroach 50% into the
setback.
cnum. >ewz STgVCfVRC:R
MN CE
LNMMASSW 3 SipVCiW I v ry'
M1WIAGE
$ di4[x %AIWTCRx RIF/Vp.hf1.30' AYG.60'
CNAHSCTC/.CR:4-- R CX/.MMdSCHt Sl11W WS:R
MgNAEE
3 RoBtvD.r.W.ro' r.rc:to'
CREEKS
reacvo
Figure 1. Buffer Comparison of Jurisdictional Agencies
DREDGING AND SEDIMENT REMOVAL
Executive Summary: Not currently codified and no changes expected.
As these are generally regulated by the DNR and the PCA, Chanhassen does not oversee these
activities. Minnehaha Creek Watershed District has had a dredging rule in effect for some time
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Paul Oehme
Surface Water Management Plan Update
January 26, 2015
Page 4
now and has administered this permit with no apparent issue. Given this, staff does not
recommend adding dredging and sediment removal to our local controls.
SHORELINE AND STREAMBANK STABILIZATION
Executive Summary: Currently addressed through zoning permits. No changes to code
anticipated.
As these are generally regulated by the DNR and the watersheds, Chanhassen does not oversee
these activities aside from requiring a zoning permit to assure that there is no conflict with
utilities. Minnehaha Creek Watershed District has had a shoreline stabilization rule in effect for
some time now and has administered this permit with no apparent issue. Given this, staff does
not recommend adding shoreline stabilization to our local controls.
STORMWATER MANAGEMENT
Executive Summary: A complete re -write of stormwater management rules are forthcoming.
This will address the requirements of the watershed districts as well as the National Pollution
Discharge Elimination System permit.
There will be significant modifications to the stormwater management code and design
standards. These are found primarily in Chapter 19 but are referenced elsewhere. These
modifications are not only a result of changes to watershed plans but changes to the National
Pollution Discharge Elimination System/State Disposal System — Municipal Separate Storm
Sewer System Permit (MS4). The primary focus of these changes will be to incorporate volume
control into the standards and to provide credit to utility fees for compliance with the rule
changes.
NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM — MS4 PERMIT
In addition to updating our Surface Water Management Plan, we will be updating our Surface
Water Pollution Prevention Plan for our Municipal Separate Storm Sewer System Permit. The
SWPPP is divided into six minimum control measures (MCM). These are broad categories
intended to address the protection and improvement of surface waters. The following outline
shows a summary of the required elements in each minimum control measure. Many of the
minimum control measures are already in place and have been implemented and will require
only minor changes. Other items, such as MCM 4 and MCM 5 are equivalent to the Erosion
Prevention/Sediment Control and Storm Water Management Rules respectively. But many of
the standard operating procedures for inventory, assessment, response and enforcement will need
to be updated or developed.
GAENG \Terry \Surface Water Management\2014 SWMPg3 Update\ MeetingsWEMO _CityCouncil_012615_rev.docx
Paul Oehme
Surface Water Management Plan Update
January 26, 2015
Page 5
MCM 1 — PUBLIC EDUCATION & OUTREACH
Implementation plan
Target audiences — with measurable goals for each audience
Responsible person
Specific activities & schedules
Description of coordination with other entities & programs
MCM 2 — PUBLIC PARTICIPATION & INVOLVEMENT
MCM 3 - IDDE
Regulatory Mechanism — that effectively prohibits non- stormwater discharges into the MS4
Enforcement Response Procedure
Name of person responsible for violation(s)
Date and location of violation(s)
Description of violation(s) — relevant regulatory mechanism
Corrective actions issued — with schedule
Date & type of enforcement used to compel compliance
Referrals to other regulatory organizations — if any
Date of resolution
Written procedures for investigating, locating, and eliminating the sources of illicit discharges
Written procedures for responding to spills
MCM 4 — CONSTRUCTION SITE CONTROLS
Regulatory Mechanism — require site plans list erosion prevention, sediment and waste controls
Enforcement Response Procedure
Name of person responsible for violation(s)
Date and location of violation(s)
Description of violation(s) — relevant regulatory mechanism
Corrective actions issued — with schedule
Date & type of enforcement used to compel compliance
Referrals to other regulatory organizations — if any
Date of resolution
Written procedure — site plan review
Written procedure — receipt and consideration of reports from the public
Written procedure — conducting site inspections
ID priority sites for inspection
ID frequency of inspections
Name or position title of responsible person
Checklist (or other written means) to document inspections
MCM 5 — POST- CONSTRUCTION CONTROLS
Regulatory Mechanism — meeting all permit requirements & conditions
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Paul Oehme
Surface Water Management Plan Update
January 26, 2015
Page 6
Conditions
Limitations & exceptions
Exceptions for volume
Mitigation procedures
Long -term maintenance — for BMPs not owned or operated by permittee
Inspections
Preserve the permittee's right to ensure maintenance responsibility
Protect/preserve BMPs' effectiveness
Enforcement Response Procedure
Name of person responsible for violation(s)
Date and location of violation(s)
Description of violation(s) — relevant regulatory mechanism
Corrective actions issued — with schedule
Date & type of enforcement used to compel compliance
Referrals to other regulatory organizations — if any
Date of resolution
Written procedure - site plan review
MCM 6 — Pollution Prevention & Good Housekeeping
Facilities inventory
BMPs for facilities & operations
BMPs for Source Water Protection Areas
Pond assessment procedures & schedule
Inspection checklists — if any — not required
Maintenance forms - if any — not required
Employee training materials and/or sources (Web hyperlinks) — if any — not required
SCHEDULE
Staff is anticipating setting a schedule for updating our surface water management plan that
would result in a public hearing and approval for plan distribution for review at the April 20'
meeting with plan adoption in July. Code updates will take place concurrent to this activity but,
as they may be included as an appendix to the plan, they will be addressed on their own timeline
that is currently being developed.
ATTACHMENTS
1. Watershed Rule Matrix.
2. Gantt Chart of SWMP Update
G:\ENG \Terry \Surface Water Management\2014 SWMPg3 UpdateNeetings \MEMO_Citycomcil_012615_mv.docx
Monte MCA ncRUIT Nr1TFS
blANUANU
FLOODPIAIN
ALTERATION:
THRESHOLD
bHHrvHA.b[N
These uses shall be permitted within the Floodway District to the extent that they are not
prohibited by any other ordinance or watershed district regulations and provided they do
! require structures, fill, or storage of materials or equipment in addition, no use within
oodway district shall be permitted to adversely affect the capacity of the channels or
oodways or any tributary to the mainstream or of any drainage ditch, or any other
drainage facili or system
—LI rvno.., v,•, uw„ •.oil,. ...•, i�m�,�,+,.,.,,,,,•.,
Any land4slurbing activities or filing of land below the 100 -year (Mori elevation
of a waterbod in the watershed.
........ � ......... ....... .•........_..___._...._.
No person shall alter of fill land below the 100 -year high water elevation withou
a mtit.
oQ`v
4F
�
�F>-
The RPBCWD me only oppress within floodplains All olBlulf Creekaalready
wthfn BCOD and Chanhassen requires a 50 foot setback hom top ofbankof
watercourses already. lakes have a setback of between 50'and 150'. On
subdivisions 9 has been ourprectice to acquire foodplain in mdlt.
ON 60.3(d(3) Communtes must prohbt enroachents wdhn regulatory
)_ i_ _c_ m _
floodways (44 CFR 59.1) unless it U demonstrated through hydro analyses
that it would not result in ANY increase in /Mod levels
_ _ _ _ _ _ _ _
In Chanhassen the 100 Aboo'plain is consistent to the floodway.
Any alteration of surface water flows below the 100-year flood elevation:
diverting, obstructing or newly ouflatfing
FLOODPLAIN:
ALTERATION CRITERIA
Two feet b above year a vatior
No new rm rvious surface w n ear >
We have no and ation requirement
1:1 volume mitigation
2 -feet frceboard
No adverse effect on flood risk, base flow, channel stability,
No increase in flood elevation
O'setbackregardless of flood lain
I
No sWcture wfln 100feet of centerline of watercourse - excepting bridges and
trails 10'width
Fill shall not result in a net decrease in storage capacity. Mitigation shall occur
prior to Wcemen(offill. I( cannotinclude ex ansion ofshoreline .
ce n ge gr ing mus can orm wr ongina cross -sec on
WETLAND AND CREEK
BUFFERS THRESHOLD
With the creation of any new lot
Rule B - Flood lain Management
Stormwater Man emsnt Rule
Buffer should be 2quisedanytime that a wetalnd is impacted or a catigation
area is created.
Rule E - Drell in
Water Body Crossings Rule
Rule F- Shoreline Stabilization
New principal residential simcure with net increase in hardcover
Rule G - Walerrbotl Crossings
Rule d- Stamwater Management
App laslo pelves: tricompasing or adjacent LOa public wateroonuseTIM
Wetland or other protected wenand
Applies M Properties: Encompasing or adjacent to any watercourse within a
High Risk Erosion Area - can provitle contrary evidence
WETLANDANDCREEK
BUFFERS: DISTANCES
Preserve= 1 ETBA K
xce tion = AV
reserve= 1
Suggest altering setbacks M become consistent with MCWD andMtb'ng
RPBC}V12Sg1PfLtAm Werryye;l 29"togragsef6acks
Fxfstinq l_famill-- 20'AVG/10'MIN ___
For linearprojects d shall be limited to the extent ofthe dgMO %way
_ _ _ _ _ _ _ _
Need to go thro h aterie forclassifcatMn for each
Man 1= 25'MIN 130' SETBACK SS FEET
With Value= 60'AVGI3rY MIN
Manage 1= 40'BASEl34'MIN
Man e2 =20' MIN 130'SETBACK 50 FEET
Medium Value= 40' AVG 120'MIN
Manage 2= 30'BASE 124'MIN
Man 3= 16.5MIN130 SEI BACK46.5 FEET
Low Value = 20'AVG 110'MIN
Manage 3 = 20' BASE II6'MIN
NA
PW Watercourse = 50' AVG / 30' MIN
NA
NA
High.nsk Watercourse = bU AVU I JU
MIN
NA
WETLANDANDCREEK
BUFFERS:
ESTABLISHMENT AND
MAINTENANCE
7u7%—p!an7eT'w1 mom in with native vegetation of varying percent composition -
but can't be noxious or inversive swine
Must be planted and maintained in native vege ion. y rro cu bvate, mow,
ferfllae or pasture the buffer area.
Must np sots, establish native vegetation and have a maintenance an
montil plan.
Monuments aired -1 r lot no more than 300 fcet
May selectively remove noxious, etc and use herbicidelpesficide
Monuments required- every 100 feet
No flI material or sbuclureexcept boardwalk, sidewalk and stortnwater turesshalt be
allowed within buffer.
Nofil material or structure except boardwalk, sidewalk and Stomrwater
features shall be allowed within buffer.
No fill malaria asWCture except boardwalk, sidewalk and slomrvraler
features shall be allowed within bufla.
Shall be recorded against the property
Recorded against dead
Performance Bond
50 CY or 5000 SF
150 CY or 5000 SF
EROSION & SEDIMENT:
henthbuW k wafer of the state
THRESHOLD
tee an Ig ivy mvtu . one
EROSION & SEDIMENT:
CRITERIA
CONSISTENT
DREDGING &SEDIMENT
REMOVAL
4
Permit required to remove 1 CY or more of sediment
No dredging within any public water
Leave with watershed districts
Only rmiffedfor maintenance, nutrients reduction or wildife
Same as RPBCWD
No pannit re uirsd if anapproved DNR permit is procurex
City can get fast track permit up to 20CY with 48 hour notice
DREDGING& SEDIMENTI
REMOVAL: STANDARDS
st mmrma im actsoutwn
Must be minima im aA solution
Cannot alter original alignment slope or x- sectior
IDspoils dis salsite
Cannot enlarge natural basin or create new connections
Must include plan to remediate sediment source where possible
Will not occur above the OHW
Remainder same as RPBCWD
Cannot occur in channel steeper than 3:1 or lake 10:1
flEcologically sensitive
luamint cause seepage or result In su u ace rainagE
SHORELINE &
STREAMBANK
STABILIZATION
q�
Persil required for any improvement or stabilizalln of a streambank or
shoreline: rip rap. sand blanket, etc
Same as RPBCWD. Sand blanket may be faslracked
Add zoning permit provisionforreviewofclearcutting and othershaelnd
requirement but leave with districts arMONR.
No rmit if DNR and issued
No rmhto maintain exis6n Ain -kind replacement
SHORELINE&
SHORELI E&
STABILIZATION
Must demonstrate need.
Must rovide shoreline erosion intensity calculations to justify
uencin :Bice ineenn
'antis wnsistentwith shoeline LIC
Combination!03 and bioen ineennc
With shear strew talcs to support can o no ran
Used DNRCmedafor des' n
_
FR walls care rohiWed
Sand blankets follows DNR rules
STANDARD
CHANHASSEN
RILEY PURGATORY BLUFF CREEK WATERSHED DISTRICT
MINNEHAHA
CREEK WATERSHED DISTRICT
NPDES MS4 PERMIT
NOTES
These development standards shall be reflected in plans prepared by developers and /or
Subdivision of property one acre or larger into or more lots; alteration of
New development and re-development projects with one acre or more
We need to evaluate ourtrlggers. One (1) acre perhaps too large but
STORMWATER
project proposers in the design and layout of site plans, subdivisions and water
topography to effect mnof from 1 ac or larger lot
disurbance. This shall include areas less than 1 ac if part of larger commong
RPBCWD triggers foe low. Creation of three or more lots; site plan that
MANAGEMENT:
management features, i.e. no minimum threshold
50GY FILL
plan of development.
disturbs 10,000SF; creation of more than 5,0003i'meer ioumnlace;
TRIGGER
SODD SF Disturbance
mdemkpment thatdces not result in a decrease in hardcover. Language
3 Lot Subdivision
1961 TP 40; Major Facilities desinged based upon 1D0.YR type II; Minor facilities
No distinction
evaluate destaned for 10-YR ad 1 - F
Atlas 14 or most recent NWS reference data
Atlas 14 or most recent NWS reference data
Existing pennitees shall revise as necessary current program to implement and
No increase in 1-, 10. and 100 -year where SW discharges across site
enforce a Post-Construction S(ormwater management program that reduces
No increase in peak rates from proposed project for l or2, 10, and 100 year. Valances
Limit peak flow rates to existing for 2-, 10. and 100.year storms for all points
boundary. For ag land new development shall not increase rates over modeler
water pollution after construction related to new development and
allowed if comparators show no...
where stormwater discharges site.
meadow condition.
redevelopment
Will need to define 'at each discrete outler and no variances _ _ _ _
a
0
No volume requirements
w
Provide for abstraction of 1.1 inches of mnof from impervious surface. Must
No net imrease tram pre - project from pre -pi conditions on annual basis cd
Volume required via MS4, MC WD, CCH'MO and NPDES Construction.
oreheat
runoff for infiltration and filtration features. Must have 3 -feet se ration
Provide for abstraction of first 1.0 inch of rain from impervious surface.
discharge volume, TSS and TP.
Recommend MIDS._
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
a
New development shall result in no net increase in TP from existing conditions.
Owners and /or operators of construclgion activities must submit site plans with
61 and 90%TSS
Removal 60 %TP and 90 %TSS: Abstraction counts to compliance.
Ag land shall be modeled as meadow condition.
poi SW management BMPS to parmilm for review and a roval.
We GOIIset am0Imum Thresh old. Ariy/rg1XwTa�toblsMG.
Existing single family home sites largely exempt from design standards but
No BMPS required on existing single (amity homes.
No BMPS required on single family homes
No BMPS required on single family homes
must III a BMP consistent w th sonne MIN ouddelffre MNSWIA. MiDs.
Otherwise we administer. -----------------------
w
Redvelopment with <50% disturbance only treat new impervious and disturbed
There are several areas deficient on treatment and storage (town center).
Nos specific requirement Has been tice to address new impervious
a
>50% then all area
Requirements vary depending upon size of site, the percent of the site
NET REDUCTION ON ANNUAL BASIS: Volume, TSS and TP
Should adopt jachicti harredevelcipment anyway
disturbed and whether impervious surface is reduced or increased,
rr
w
Limit peak flow rates to existing for 2, 10- and 1 00-year storms for all points
Maximum extent practicable and must make'reasomble aftempf topurchase
5
where stormwater discharges site.
New road or Uail> 10000 SF must meet all requirement
additional RIW
3
rolects Nreen OSF and provide 1. ' a slracton m new
Ro won w/> an Qac new impervious must meet P and rate
No specific requirements for linear projects.
u
impervious.
control
Projects >1AC new impervious must provide abstraction of larger: 0.55' runoff
from new imptennours surface or, L 1' from net increase HC
Road won > 1 a new impervious must meet all requirements
Applicant must provide narrative listing and explaining variables that limit
feasibility of 1 inch. Narrative and concept plan discussing how reasonable
There are conditions in which infiltration is prohibited - contaminated soils, less
wApplicant
must demonstrate to the satisfaction of district engineer that above
modifications to project would influnce feasibility of meefing l'. An explanation
than 3 fast to ground water, etc. Must achieve volume reducdon to mac extent
We have no volume requirement so hence no restricted site sequencing and exceptions.
0
a
cannot be met Then following uencin
of efforts undertaken by applicant to accomodate or remove constraints.
practicable MEP using other techniques - muse, green roofs, etc.
w
�
Abstraction of at least 055 inches from applicable impervious surfaces, or
Must achieve abstraction of greatest amount feasible and at least 0.5 inches.
STORMWATER
Abstraction of what on-ste to greatest extent practicable, or
Must treat full inch for P. They offer unique credits - trees
MANAGEMENT:
Off-site abstraction and treatment.
CRITERIA
All scenarios must meet 60%TP 90 %TSS requirements
Adopt MIDs and MN SW manual sequencing and pictubded infiltration areas.
2 feet of free board
2 feat of freeboard
landlocked - feet above back to bay 1 year events or 10 day snowmet
Landlocked basins designed to hold back to back 100.YR
a
whichever is greater.
Landlocked must hold back- to-back 100 year events.
0
m
w
Requirements for ouUetiing landlocked - dead storage requirements, review
downstream impi demonstrate need
May not increase volume draining to band locked receiving area.
Modeling
Stomnva er volume and rate analysis for 1,10
and 1 O
Site plan w/ property lines, all contributing subwa(ersheds, proposed BMPS,
delineation of existing walerbodies, existing and proposed NWL of OFII 2 -fo
GShe
plan wM property lines, contrours and NWL & 100-YR
contours, construction plans for stonmvater BMPS
�
Geotech analysis at all proposed SW management locations
soils sampling an to at least 5 feet at proposed facility ovations.
as -built drawings showin that compliant with approved plans
Soil ammendmant plan following MN SW Manual guidarim,
All hydrolog C, hydraulic & water quality calcs used in the design
All hydrologic, h draulic & water quality talcs used in the design
Create O&M plan and declaration
All facilities designed with maintenance access
All facilities desi ned with maintenance access
In rpetudy maintenance
In perpetuity maintenance
FacilNes maintenance, inspection and monitoring plan
Facilities maintenance,
inspection and monitoring Ian
a
Identiheswiteduleofactivities& Res nsible ies
Identifies schedule
of activities& Responsible parl
w
z
Provides for inspections and maintenance in- perpetuity with records available
at districts request
The Ian must be recorded against the deec
The plan must be recorded against the deer
Construction or reconstruction of a single-family home
New development with loss than 20% impervious or less than one acre area
Redevelopment of a site less than 5 acres (hot will result in 10% or greater
\oat
ti
0
\oa5
q
decrease in imperious surface or a site greater than 5 ac where less than into
disturbed & 10% reduction impervious
Linear hanseartation Prowts with less than 10, 000 SF of new impervious
Sidewalksandlinall 2 feet or narrower with an impervious downsbope buffer at
least 50 % as wide
Surface Water Period Highlight: 18 Plan .Actual . %Complete x Actual (beyond plan)
Management Plan Update
PERCENT
ACTIVITY COMPLETE PERIODS
1
Kickoff Meeting
100%
Data Collection
90%
Construct Model
90%
Draft Report (50% plan)
25%
Review SWMP 2G- Implementati(
o%
Review SWMP 2G - Goals & Policl,
60%
Develop implementation anions
0%
Status Meeting
0%
Worksession
50%
Council Worksession
25%
Present to EC - Goals &Policies
0%
Present to PC - Goals &Policies
056
Open House - Goals & Policies
o%
Submittal Plan Due
o%
Pre .. CC W.fth., /A, Dd....n
0%
Plan Revisions
0%
RPBCWD Board Approval
0%
MCWD Board Approval
o%
Council Adoption
o%
11 12 13 10 15 16 17
. %Complete (beyond plan(
28 29 30 31 32 33 34 3
"dk
44 45 46
2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Week
o a o o
starting ° 0 . . $ o n "' o n '^ ry o '^ o '^ o 0
n o v o3 ^ ry o n � o o ° n° o ° ° o r ° 0 0
Sunday w o 0 0 °` 3 m r m m zi r m„ m �o Q `o v , v m , m jr N
,. n H .. r �+ l0 n r n m m 3 o- 3, r w N A i e e e e n n n m m