watershed management commission€¦ · j. 2016‐001 csah 115/cr116 reconstruction, medina. k...

*in meeting packet **available at meeting

CHAMPLIN - CORCORAN - DAYTON - MAPLE GROVE - MEDINA - PLYMOUTH - ROGERS

elm creek Watershed Management Commission ADMINISTRATIVE OFFICE TECHNICAL OFFICE 3235 Fernbrook Lane Hennepin County Plymouth, MN 55447 Dept. of Environment and Energy PH: 763.553.1144 701 Fourth Ave S Suite 700 FAX: 763.553.9326 Minneapolis, MN 55415-1600 Email: [email protected] PH: 612.596.1171 www.elmcreekwatershed.org FAX: 612.348.8532 Email: [email protected]

AGENDA

September 14, 2016 1. Call Regular Meeting to Order. a. Approve Agenda.*

2. Consent Agenda. a. Minutes last Meeting.* b. Treasurer’s Report and Claims.**

3. Open Forum.

Suspend meeting

4. Public Hearing for Capital Improvement Projects 2016‐01 Fox Creek Streambank Stabilization Project; 2016‐02 Mississippi River Shoreline Repair and Stabilization Project; 2016‐03 Elm Creek Dam at the Mill Pond Project; 2016‐04 Rush Creek Main Stem Restoration Project; and 2016‐05 Fish Lake Alum Treatment Project Phase 1. a. Staff Report.* b. Feasibility Reports‐ available for viewing at the hearing. c. Commission discussion. d. Open Public Hearing. 1) Receive comments from member cities. 2) Receive comments from public. e. Close public hearing. f. Commission discussion. g. Consider Resolution 2016‐02 Ordering 2016 Improvement Projects.** h. Approve Cooperative Agreements** with cities of Champlin (2), Maple Grove (2) and Rogers.

Resume meeting.

5. Action Items. a. Project Reviews – also see Staff Report.*

6. Watershed Management Plan.

7. Elm Creek Watershed‐wide TMDL. a. Response to comments.

8. New Business.



9. Communications. a. Buffer Update – August 2016.* b. DNR Buffer Map.*

10. Education.

11. Grant Opportunities.

12. Other Business.

13. Project Updates – see Staff Report.*

14. Adjourn. Z:\Elm Creek\Meetings\Meetings 2016\09 Agenda_revised.doc



Project Reviews. (See Staff Report.*)

a. 2013‐046 Woods of Medina, Medina.

b. 2014‐015 Rogers Drive Extension, Rogers.

c. 2015‐004 Kinghorn Outlet A, Rogers.

d. 2015‐006 Veit Building Expansion, Rogers.

e. 2015‐013 Wayzata High School, Plymouth.

f. 2015‐020 Strehler Estates, Corcoran.

g. 2015‐025 OP3 Outdoor Storage, Rogers.

h. 2015‐030 Kiddiegarten Child Care Center, Maple Grove.

i. 2015‐032 Rogers High School Auditorium Addition.

j. 2016‐001 CSAH 115/CR116 Reconstruction, Medina.

k 2016‐002 The Markets at Rush Creek, Maple Grove.

E l 2016‐004 Park Storage Place, Corcoran.

A E m. 2016‐005W Ravinia Wetland Bank Plan, Corcoran.

n. 2016‐014 Balsam Apartments, Dayton.

o. 2016‐018 Cambridge Park, Maple Grove.

p. 2016‐019 Just for Kix, Medina.

q. 2016‐020 Ryan Meadows, Rogers.

r. 2016‐021 Diamond View Estates, Dayton.

s. 2016‐022 AutoZone, Maple Grove.

t. 2016‐023 Tri‐Care, Maple Grove.

u. 2016‐026 Faithbrook Church, Dayton.

R v. 2016‐027 Rogers Drive/Brockton Lane Intersection, Rogers.

R w. 2016‐030 Elm Creek Meadows, Plymouth.

R x. 2016‐032 CSAH 19 Cross Culvert, Corcoran.

A E y. 2016‐033 Dayton Public Works facility – site improvements, Dayton.

E R z. 2016‐034 French Lake Golf Course Industrial Project AUAR, Dayton.

aa. 2016‐035W 20070 Larkin Road – wetland violation, Corcoran.

ab. 2016‐036 K‐Manufacturing 3rd Addition, Dayton.

A E ac. 2016‐037 Lanewood Estates, Plymouth.

ad. 2016‐038 AutoMotor Plex, Medina.

ae. 2016‐039 Sands Parcel, Plymouth.

af.

ag.

ah.

ai. A = Action item E = Enclosure provided I = Informational update will be provided at meeting RPFI ‐ removed pending further information R = Will be removed RP= Information will be provided in revised meeting packet….. D = Project is denied

Elm Creek Watershed Management Commission 2016 Treasurer's Report2016

Budget Aug 2016 Sept 20162016 Budget

YTD

EXPENSESAdministrative 90,000 6,578.23 7,435.00 56,559.67

Watershed-wide TMDL 24,406 30.50 689.68Grant Writing 5,100 0.00Website 6,000 280.61 151.25 2,332.24Legal 2,000 580.00Audit 5,000 4,500.00Insurance 3,800 3,456.00Miscellaneous/Contingency 2,000 0.00Project Reviews HCEE 105,500 23,752.77 44,763.24Project Reviews Consult 6,000 1,530.00 5,252.00Project Reviews Admin 11,000 955.36 1,362.92 8,100.14WCA-Technical HCEE 12,500 2,303.87 6,877.74WCA Legal 500 0.00WCA Admin 2,000 147.32 57.58 780.93Stream Monitoring 23,500 11.35 914.32Extensive Stream Monitoring 7,200 0.00DO Longitudinal Survey 500 0.00TMDL Monitoring/Comm in-kind 9,100.00Rain Gauge 195 21.03 17.29 138.19Rain Gauge Network 100 0.00Lakes Monitoring - CAMP 1,650 0.00Lakes Monitoring - TRPD 0.00

Sentinel Lakes 3,100 0.00Additional Lake 600 0.00Aquatic Vegetation Surveys 1,000 0.00

Wetland Monitoring (WHEP) 4,000 0.00Stream Health (SHEP) 6,000 0.00Education 6,000 10.00 187.35 2,362.29WMWA General Activities 4,000 3,750.00WMWA Educators/Watershed Prep 4,500 4,500.00WMWA Special Projects 1,500 1,500.00Rain Garden Workshops 3,000 2,113.50Education Grants 3,000 0.00Macroinvertebrate Monitoring-River Watch 6,000 0.00Ag Specialist 2,000 0.00Projects ineligible for ad valorem 50,000 0.00Studies/Project ID/SWA 35,000 567.94 1,480.20 5,319.01S Metro/Upper Miss Bacteria TMDLs 1,000 0.00Plan Amendments/Local Plans 8,000 70.20 1,698.91Transfer to (from) Encumbered Funds (see following pages) 0.00Transfer to (from) Capital Projects (see following pages) 531.60 531.60Transfer to (from) Cash Sureties (see following pages) 0.00To Fund Balance 0.00TOTAL - Month 34,698.68 12,783.69 165,819.46TOTAL Paid in 2016, incl 2015 Expenses 447,651.00 209,281.49 222,065.18 2016 Paid

Z:\Elm Creek\Financials\Financials 2016\Treasurer's Report Elm Creek 2016.xlsxSept 2016

Elm Creek Watershed Management Commission 2016 Treasurer's Report2016

Budget Aug 2016 Sept 20162016 Budget

YTDINCOMEFrom Fund BalanceProject Review Fee 5,847.50 46,118.85Return Project Fee -1,500.00 -1,500.00Water Monitoring - TRPD Co-op Agmt 6,000 0.00WCA Fees 8,100.00Return WCA Fee/Surety -1,000.00 -1,000.00Reimbursement for WCA Expense 1,500 630.00 840.00Member Dues 215,360 215,360.00Interest/Dividends Earned 80 97.75 405.45Transfer to (from) Capital Projects (see page 4) 127,449.66Watershed-wide TMDL - MPCA - 2015 0.00Misc Income 0.00Total - Month 6,575.25 -2,500.00 395,773.96TOTAL Funds Rec'd in 2016, incl 2015 Income 327,940.00 410,282.21 407,782.21 2016 ReceivedCASH SUMMARY Balance FwdChecking4M Fund 517,804.14 719,804.86 704,521.17Cash on Hand 719,804.86 704,521.17CASH SURETIES HELD Balance Fwd Activity CYWCA Escrows Received 0.00 1,000.00WCA Escrow Reduced 0.00 0.00 Total Cash Sureties Held 0.00 1,000.00 1,000.00CAPITAL PROJECTS

Revenue - AdValorem Levy Funds 250,000Medina Tower Drive - 0.00Champlin Mill Pond Dam - 0.00Plymouth EC Restoration 127,449.66

100,000

5,000

Expense - Commission Cost Share 250,000Administrative Expense 3,000

Medina Tower Drive - 0.00Champlin Mill Pond Dam - 0.00Plymouth EC Restoration

ENCUMBERED FUNDSEncumber Studies/Project Identification/ 34,316

SWA balance from 2015Total Expenditures 0.00 0.00 0.00Total Encumbered Funds 34,316 34,315.54 34,315.54


Elm Creek Watershed Management Commission 2016 Treasurer's Report

Claims PresentedGeneral Ledger

Account NoAugust September TOTAL

Campbell Knutson - Legal 521000 0.00Legal - Project Review (Admin) 578100

Connexus - Rain Gauge 551100 17.29 17.29Barr Engineering - Proj Rev Consultant 578050 1,530.00 1,530.00ECM Publishers 531.60

Hearing Notice Fox Creek Ph 2 Stabilization 563005 106.32Hearing Notice Miss Rv Shoreline Repair 563006 106.32Hearing Notice EC Dam at Mill Pond 563007 106.32Hearing Notice Rush Ck Main Stem Restoratio 563008 106.32Hearing Notice Fish Lake Alum Trmt Ph 1 563009 106.32

Lennar - Refund Ravinia WCA Escrow 361000 1,000.00 1,000.00Neil R Wiley-Refund Proj Rev Fee Less app $50 381000 1,500.00 1,500.00JASS 10,704.80

Administration 511000 7,333.00Annual Report 511000Website 581000 151.25Project Reviews 578100 1,362.92WCA 579000 57.58Plan Amendment 541500Education 590000 187.35Elm Creek TMDL 580800 30.50CIPs General 563001 1,480.20CIPs Medina Tower Drive 563002CIPs Champlin Mill Pond Dam 563003CIPs Plymouth EC Restoration 563004Grant Opportunities 511000 102.00Grant Opportunities 511000 102.00

TOTAL CLAIMS 15,283.69


Elm Creek Watershed Management Commission2016 Treasurer's Report

Capital Improvement Project Tracking

CIPs Amount %age TOTAL 2014 TOTAL 2015

JAN2016

'FEB 2016

'MAR 2016

'APR 2016

'MAY 2016

'JUN 2016 'JUL 2016 'AUG

2016'SEP2016

TOTAL 2016

TOTAL ALL YEARS

Ad Valorem 2014 - Medina Tower Drive 68,750 52.380

Revenue - 68,916.44 - 68,916.44 Expense 1,989.80 - - 1,989.80

Balance (1,989.80) 68,916.44 - 66,926.64

Ad Valorem 2014 - Champlin Mill Pond Dam 62,500 47.620

Revenue - 62,653.69 - 62,653.69 Expense 1,631.81 - - 1,631.81

Balance (1,631.81) 62,653.69 - 61,021.88

250,000.00 100.000

Revenue - 127,449.66 127,449.66 127,449.66 Expense 2,606.17 - 2,606.17

Balance (2,606.17) 127,449.66 127,449.66 124,843.49

Revenue - - - Expense - 106.32 106.32 106.32

Balance - - - (106.32) (106.32) (106.32)

Revenue - - - Expense - 106.32 106.32 106.32

Balance - - - (106.32) (106.32) (106.32)

Revenue - - - Expense - 106.32 106.32 106.32

Balance - - - (106.32) (106.32) (106.32)

Revenue - - - Expense - 106.32 106.32 106.32

Balance - - - (106.32) (106.32) (106.32)

Revenue - - - Expense - 106.32 106.32 106.32

Balance - - - (106.32) (106.32) (106.32)

TOTAL CIP 131,250.00Revenue - 131,570.13 - - - - - - 127,449.66 - - 127,449.66 259,019.79 Expense 3,621.61 2,606.17 - - - - - - - - 531.60 531.60 6,759.38

Balance (3,621.61) 128,963.96 - - - - - - 127,449.66 - (531.60) 126,918.06 252,260.41

Ad Valorem 2015 - Plymouth Elm Creek Restoration

Ad Valorem 2016 - Fox Creek Phase 2 Bank Stabiliz

Ad Valorem 2016 - Miss Rvr Shore Repair/Stabilizat

Ad Valorem 2016 - EC Dam at Mill Pond

Ad Valorem 2016 - Rush Creek Main Stem Restorat

Ad Valorem 2016 - Fish Lake Alum Trmt Phase 1

Z:\Elm Creek\Financials\Financials 2016\Treasurer's Report Elm Creek 2016.xlsxCIP Track Sept 2016

elm creek

Watershed Management Commission ADMINISTRATIVE OFFICE TECHNICAL OFFICE 3235 Fernbrook Lane Hennepin County Public Works Plymouth, MN 55447 Department of Environment and Energy PH: 763.553.1144 701 Fourth Ave. South, Suite 700 E-mail: [email protected] Minneapolis, MN 55415 www.elmcreekwatershed.org PH: 612.596.1171 E-mail: [email protected]

CHAMPLIN • CORCORAN • DAYTON • MAPLE GROVE • MEDINA • PLYMOUTH • ROGERS S:\EMD\DEMCON\CORR\DURGUNOGLU\_WATERSHEDS\ELM_CRK\PLAN_REVIEW\2016\2016-022 AutoZone, Maple Grove\2016-022 AutoZone Store #6379, Maple Grove.docx

Dayton Public Works Facility Dayton, Project #2016-033

Project Overview: The City of Dayton is proposing to construct a public works facility with a new building and associated parking lots, located north of south Diamond Lake road on the east side of Zanzibar Lane in the City of Dayton. The site is currently agricultural field. The total project area is 18.86 acres, will disturb 7.37 acres and increase impervious area by 2.66 acres. This project, was reviewed based on 21.65 % impervious area. Any future expansion will have to comply with Elm Creek Watershed Standards at that time. Our review will be for compliance to the Commission’s third generation stormwater management plan, Appendix O rules and standards. Applicant: City of Dayton, 11260 South Diamond Lake Road, Dayton, MN 55327. Phone: 763-427-4589. Email: [email protected] Agent/Engineer: Civil Engineering Site Design, Attention Mr. Scott Dahlke, PO Box 566 118 East Broadway street, Monticello, MN 55362. Phone: 736-314-0929. Email: [email protected] Exhibits:

1) ECWMC Request for Plan Review and Approval, application and fee for 18.86 acre government agency development project ($4,756) received August 8, 2016.

2) Stormwater Management and Geotechnical Reports, last revision dated August 26, 2016. 3) Civil Engineering Site Construction Plans last revision dated August 26, 2016.

a. Sheet 1 of 9, Cover Sheet b. Sheet 2 of 9, Site Plan c. Sheet 3 of 9, Grading & Drainage Plan d. Sheet 4 of 9, Profile Plan e. Sheet 5 of 9, Storm Sewer Utility Plan f. Sheet 6 of 9, Paving Plan g. Sheet 7 of 9, Storm Water Pollution Prevention Plan h. Sheet 8 of 9, Details

4) Wetland Delineation Report, dated March 1, 2016. Findings;

1) A complete application was received on July 28, 2016. The initial 60-day review period expires September 26, 2016.

2) Rule D. Stormwater Management i. The existing stormwater from this site drains northwesterly into a fringe wetland

complex that ultimate drains to south Diamond Lake. The general topography of most of the project site is sloping from east to west.

ii. The site is predominately Hydrologic Soil Group (HSG) Type D soils. Infiltration of stormwater is not feasible.

mailto:[email protected]



Dayton Public Works Facility Page 2 Dayton, Project 2016-033 Sept 9, 2016.

iii. The proposed new impervious area is about 2.66 acres. The abstraction volume requirement for 1.1 inches of runoff from the new impervious area is 10,621 cubic feet.

iv. Stormwater management is provided by construction a NURP pond with a filtration bench. The sand filter will is designed to drawdown the abstraction volume within 48 hours.

v. The proposed filtration bench has a surface area 2,250 sf and provides capacity to filter 14,670 cubic feet of water volume based on filtration rate of 1.63 inch/hour over 48 hours.

vi. Filtration media of 70 % sand select granular and 30 % compost. vii. The proposed stormwater management will reduce the post development rates to

below pre-development runoff rates. This will meet the Commission’s standards.

Water quality requirements: A summary of the water quality analysis for pre-development, post-development without BMPs and post-development with BMPs are shown below. The proposed water quality control plan satisfies the Commission’s standards.

3) Rule F. Floodplain Alteration There are no established FEMA or ECWMC flood plains within the project area.

4) Rule I. Buffer Strip requirements

Total Runoff from the Site (cfs)

2-Year (2.87’’) 10-Year(4.27”) 100-Year(7.16”) Pre-development 12.02 27.84 65.79 Post-development 4.90 11.80 30.05

Water Quality (Nutrient and TSS) and Runoff Volume Summary

Condition (based on 4.97 acres)

TP Load (lbs./yr)1

TSS Load (lbs./yr)2

Abstraction (Filtration)

(cu. ft.)

Runoff volume (AF/yr.)

Pre-development (baseline) Load 18.86 5,658

N/A 18.1

Post-development Without Mitigation 16.93 2,186

10,621.00 39.8

Post-development With Mitigation 5.67 131

14,670.00 10.0

Net Change (“baseline” compared to “post-development with mitigation”)

-13.19 -5,527

+14,670 -8.2

1 All conditions reflect annual averages 2 Based on PondNet and MIDs models


The City of Dayton is the LGU in charge of administering the WCA within their jurisdictional boundary. One wetland was delineated by Wenck Associates on this site. The required buffer area for the wetland is 18,000 sf. The proposed buffer area is 23,138 sf. The proposed buffer layout satisfies the Commission’s width requirement of 25’ average and 10’ minimum

5) Rule E. Erosion and Sediment Control The project meet the Commission’s requirements. Storm Water Pollution Prevention Plan (SWPPP) narratives and site plan address NPDES and minimum Commission requirements

Recommendation: Staff recommends the approval of the project as submitted with the following condition: 1). If the pond and filtration bench will be maintained by the property owner, an operation and maintenance plan must be submitted to the city and the watershed for review and approval. The approved O&M plan must be recorded with the property within 90 days following the final plat approval. 2). Irrigation water reuse from the NURP pond is highly recommended. Hennepin County

Department of Environmental Services September 9, 2016

Said Matan

Graduate Water Resource Engineer

Technical Advisor to the Commission


SITE LOCATION

Project Site Location

Diamond Lake Road South

Zanz

ibar

Lan

e N

orth


Grading Plan

elm creek

Watershed Management Commission ADMINISTRATIVE OFFICE TECHNICAL OFFICE 3235 Fernbrook Lane Hennepin County Public Works Plymouth, MN 55447 Department of Environment and Energy PH: 763.553.1144 701 Fourth Ave. South, Suite 700 E-mail: [email protected] Minneapolis, MN 55415 www.elmcreekwatershed.org PH: 612.348.7338 E-mail: [email protected]

CHAMPLIN • CORCORAN • DAYTON • MAPLE GROVE • MEDINA • PLYMOUTH • ROGERS S:\EMD\DEMCON\CORR\DURGUNOGLU\_WATERSHEDS\ELM_CRK\PLAN_REVIEW\2016\2016-037 Lanewood Estates, Plymouth\2016-037 Lanewood Estates_2.docx

Lanewood Estates Plymouth, Project #2016-037

Project Overview: This site is a 5.9 acre site located north of County Road 47, at the extension of Lanewood Lane (PID 0411822120006), within the Taryn Hills community. Current use of the property is a single house and a barn on the property with a large lawn. Surrounding land use on the north, west and south is single family houses and vacant on the east. About one third of the northeast portion of the parcel is wetland which is also a Public Water Wetland. The applicant is proposing to build 7 single family houses. There is no floodplain in the vicinity. Applicant: Lanewood Estates, LLC, Attn. Gregory Beckey, 4100 West Broadway, Crystal, MN 55424. Phone: 612-325-7414. Email: N/A Agent/Engineer: Sathre Bergquist Inc., Attn. Tom Welshinger, 150 South Broadway Ave., Wayzata, MN 55391. Phone; 952-476-6000. Email: [email protected]

Exhibits:

1) ECWMC Request for Plan Review and Approval, received August 16, 2016.

2) Fee received $350.00.

3) Site Plans by Sathre-Bergquist dated August 10, 2016 (received August 22, 2016; revised September 7 & 8, 2016. Revision dates have been shown on the revised plans. Plans have been signed by Bob Molstad, PE.).

a. Final Plat and Lot Tab (4 Sheets-unchanged) ALTA/NSPS Land Title Survey Proposed Plat Lot Tab Plat Monitoring

b. Spec Book (14 Sheets-unchanged) c. SWMP and GEO Reports

Geo Report Final Sketch and draft borings Beckey Parcel wetland delineation Report Updated Stormwater Management Report (April 2016, updated July 14, 2016), signed by Justin Klabo, PE.

d. Plan Set Title Sheet

Lanewood Estates, Plymouth Page 2 2016-037 September 12, 2016

Final Street Plan Final Utility Plan Final Storm Plan Final Grading Plan Final Erosion Control Plan City Details (5 pages) Tree Plan

Findings;

1) A complete application was received August 22, 2016. The initial 60 day review period per MN Statute 15.99 expires October 21, 2016.

Rule D. Stormwater Management 2) The existing stormwater from this site drains northeasterly into the wetland. Soils present

throughout the site are predominately Hydrologic Soil Group (HSG) Type C soils, which have low permeability.

3) The proposed new impervious area is about 1.1 acres. The abstraction volume requirement for 1.1 inches of runoff from the new impervious area is 4,392 cubic feet.

4) The stormwater management will be provided by construction a wet pond adjacent to the wetland. The pond will have a filtration bench with drain.

Rate requirements meet the Commission’s standards. They are as follows:

Runoff Rate* 2-Year (2.87”) (cfs)

10-Year (4.28”) (cfs)

100-year (7.32”) (cfs)

Pre-Development 5.4 11.5 24.9 Post-Development 3.2 6.7 20.6 * Post-development runoff rates may slightly change due to possible HydroCad revision

Nutrient and TSS requirements meet the Commission standards

All nutrient calculations were made by using the P8 model.

5) Phosphorus a. Pre-development phosphorus load = 1 lb/year (excluding the wetland). b. Post development phosphorus load without BMPs = 2.9 lbs/year. c. Post development phosphorus load with BMPs = 0.6 lbs/year (a reduction of 0.4

lbs/year.) 6) TSS

a. Pre-development = 303.3 lbs/year b. Post development without BMPs = 888.7 lbs/year c. Post development with BMPs = 117.0 lbs/year (a reduction of 186.3 lbs/year.)

Volume abstraction and filtration requirements. (4,392 cubic feet of abstraction or equivalent is required)


7) The proposed filtration basin around the pond does not have the 3-ft separation between the bottom of the filtration basin and the saturated soils. Soil borings confirm that water was observed within 2 feet of the surface (@ Elev 964.20 ft). The applicant is proposing to line the bottom of the filtration basin with clay to circumvent the interaction of ground water with the filtration basin.

Pond Details:

8) The outlet structure for Pond 1 will have a slotted weir (required for skimming). The invert of the 0.25’x0.3’ (W*H) slot is 966.70’. The top of the weir is at 967.0’. The emergency overflow elevation is 968.0’

9) Based on the revised submitted plans: a) The NWL of the pond is 965.70’, which is established by the top of the

impermeable berm between the filter medium and the pond. b) The depth of the filter bench will be 2 feet. The invert of the 6-inch drain tile will

be 1 foot above the bottom. The drain tile will daylight in the outlet structure, on the downstream side of the weir wall, at an invert of 964.6’.

c) The 15-inch RCP outlet pipe at the OCS is at invert 964.60’. 10) Please correct the “Starting Elevation” of Pond 1 to the NWL and submit the revised model

results. 11) Please strike out “Note #4” from the Filtration Bench Notes (Final Grading Plan Sheet). 12) Please verify with the City of Plymouth if an O&M agreement is needed for the filtration

system. If an O&M is required by the city, it should be recorded within 3 months following the final plat approval.

13) Storm water summary is as follows: Development Name: .................................. Lanewood Estates Total Parcel Area: ...................................... 5.9 acres Total Disturbed (“Buildable”) Area: .......... ~3.5 acres Review Month/Year: .................................. September 2016 Nearest Downstream Surface Water: ......... PWI 596W

Condition TP Load (lbs./yr)1

TSS Load

(lbs./yr)1

Filtered Volume (per event)

(cu-ft)

Runoff volume

(AF/yr.)1 Pre-development (baseline) Load 1.0 303 Post-development Without Mitigation 2.9 889 Post-development With Mitigation 0.6 117 Net Change (“baseline” compared to “post-development with mitigation”) -0.4 -186 NA NA 1 Average annual values

Rule F. Floodplain Alteration: There are no established FEMA or ECWMC flood plains within the project area.


Rule G. Wetland Alteration: The City of Plymouth is the LGU in charge of administering the MN Wetland Conservation Act on this parcel. No impacts are proposed on the wetlands.

a. Wetland boundary decision was posted on June 2, 2016.

Rule I. Buffer Strip Requirements.

14) The proposed grading plan shows minor grading within the buffer areas. According to the Commission Rule I. 5. (d), “Buffer areas disturbed by grading operations must be finish graded to a slope of 6:1 or less or an increase in width of five (5) feet for each one (1) foot decrease in horizontal width (i.e., a 25 required foot buffer width at a 5:1 slope must be 30 feet wide, 4:1 must be 35 feet wide, and 3:1 must be 40 feet wide.)” Revised grading plan and the buffer width have been adjusted to comply with this rule.

15) An additional buffer marker has been added on Lot 2, Block 1, where the buffer line makes a bend.

16) Part of the proposed pond access road goes through the buffer area. This should not pose a problem because the developer indicated that it would be a dirt/grass road. Please indicate on the grading plan that the access road will not be paved.

Rule E. Erosion and Sediment Control 17) Grading and erosion and sediment control plans meet the Commission’s standards.

Recommendation:

Staff recommends the approval of the revised plan with the following conditions:

1) Please submit a copy of the O&M plan within 3 months following the final plat approval, if required by the city.

2) Please submit a copy of the revised HydroCad model.

Ali Durgunoglu, Ph.D., P.E. Technical Advisor to the Commission September 12, 2016


Site Location


Aerial View


Site Layout


Grading Plan

ELM CREEK

BASSETT CREEK

MINNEHAHA CREEK

SHINGLE CREEK

PIONEER-SARAH CREEK

WEST MISSISSIPPI RIVER

WEST MISSISSIPPI RIVER

:

0 61 2 3 4 5Miles

DNR BUFFER MAP

Legend50-ft Buffer

16.5-ft Buffer

PW_Basins_BufferMap

RESOLUTION 2016‐02ORDERING 2016 IMPROVEMENT PROJECTS

ELM CREEK WATERSHED MANAGEMENT COMMISSION

RESOLUTION NO. 2016‐02 ORDERING 2016 IMPROVEMENT PROJECTS, DESIGNATING

MEMBERS RESPONSIBLE FOR CONSTRUCTION, AND MAKING FINDINGS AND DESIGNATING COMMISSION COST‐SHARE FUNDING

WHEREAS, on October 14, 2015, the Elm Creek Watershed Management Commission (Commission) adopted the Elm Creek Watershed Management Commission Third Generation Watershed Management Plan, (hereinafter, “Plan”); and WHEREAS, the Plan includes a Capital Improvement Program (CIP); and WHEREAS, on May 11, 2016, the Commission adopted a Minor Plan amendment that added five projects to the CIP and revised the scope of one project and shifted the timing of funding of five projects currently listed on the CIP; and WHEREAS, the Commission’s Cost Share Policy, adopted April 11, 2012, specifies a county tax levy under Minn. Stat. § 103B.251 as a source of the Commission's share of funding for projects proposed in the Commission’s CIP; and

WHEREAS, on August 10, 2016, the Commission received Feasibility Studies on proposed CIP projects 2016‐01 Fox Creek Streambank Stabilization Project in the City of Rogers; 2016‐02 Mississippi River Shoreline Repair and Stabilization Project in the City of Champlin; 2016‐03 Elm Creek Dam at the Mill Pond Project in the City of Champlin; 2016‐04 Rush Creek Main Stem Restoration Project in the City of Maple Grove; and 2016‐05 Fish Lake Alum Treatment Project Phase 1 in the City of Maple Grove (the “Projects”); and WHEREAS, on September 14, 2016, following published and mailed notice in accordance with the Commission’s Joint Powers Agreement and Minnesota Statutes Section 103B.251, the Commission conducted a public hearing on the Projects. NOW, THEREFORE, BE IT RESOLVED by the Board of Commissioners of the Elm Creek Watershed Management Commission as follows: 1. The Projects will be conducive to the public health and promote the general welfare and is in compliance with Minnesota Statutes Sections 103B.205 to 103B.255 (the “Act”) and with the Commission’s surface water management plan as adopted and amended in accordance with the Act.

2. The cost of the Projects is estimated to be $9,572,470.

3. The Commission receives, accepts and approves the feasibility reports for the Projects, which Projects are hereby ordered.

RESOLUTION 2016‐02ORDERING 2016 IMPROVEMENT PROJECTS

4. Twenty‐five percent of the final cost of the Projects, but not more than $492,812, will be paid by the Commission from proceeds received from Hennepin County pursuant to Minnesota Statutes, Section 103B.251, Subd. 6, and the Commission’s Joint Powers Agreement. Additional costs will be paid by the respective cities wherein the projects reside, but no costs will be charged to other members of the Commission. The Commission understands that the County may pay such costs with taxes levied in 2016 and paid in 2017. The Administrator is directed to transmit a certified copy of this resolution to Hennepin County prior to October 1, 2016. 5. The cities wherein the projects reside are designated as the members responsible for contracting for the construction of Projects. Contracts for construction shall be let in accordance with the requirements of law applicable to said cities. The Cooperative Agreements for the Projects between the Commission and the cities of Champlin, Maple Grove and Rogers and the Three Rivers Park District are approved and the Chair and Administrator are authorized and directed to execute the agreements.

Adopted by the Commissioners of the Elm Creek Watershed Management Commission the fourteenth day of September, 2016. _________________________________ Doug Baines, Chair ATTEST: ______________________________ (NO SEAL) Judie A. Anderson, Administrator

STATE OF MINNESOTA COUNTY OF HENNEPIN

I, Judie A. Anderson, do hereby certify that I am the custodian of the minutes of all proceedings had and held by the Board of the Elm Creek Watershed Management Commission, that I have compared the above resolution with the original passed and adopted by the Board of said Commission at a regular meeting thereof held on the fourteenth day of September, 2016, at 11:30 a.m., that the above constitutes a true and correct copy thereof, that the same has not been amended or rescinded and is in full force and effect.

IN WITNESS WHEREOF, I have hereunto placed my hand and signature this fourteenth day of September, 2016. ______________________________ (NO SEAL) Judie A. Anderson Recording Secretary

watershed management commission€¦ · j. 2016‐001 csah 115/cr116 reconstruction, medina. k...

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